AI Software Engineer (Front End) at Maincode | Australia

About the RoleMaincode is on a mission to develop Matilda, the pioneering large language model created entirely in Australia. As we scale this model for live production deployment, we focus on building AI systems from the ground up. Our approach includes designing architectures, managing infrastructure, shaping the training processes, and operating the systems that serve our models.Matilda is a fully operational product intended for public access—not merely a research prototype. Your role will be crucial in transforming Matilda's capabilities into real-world applications. You will enhance the front-end systems that ensure Matilda is accessible, efficient, and reliable for end-users, working on features like streaming responses, conversation management, safety UX, performance, and reliability.Your ResponsibilitiesIn this position, you will be responsible for developing and maintaining the front-end systems that support both Matilda’s public interface and internal tools:Create the core web interface for user interactions with Matilda (chat, sessions, history, settings).Implement fast and reliable streaming UX for model outputs (real-time tokens, partial results, cancellation, retries).Design UI workflows that promote safe and responsible usage (reporting, refusals, user feedback, content management).Collaborate with backend and infrastructure engineers to integrate APIs, authentication, rate limits, and observability.Optimize application performance (latency, bundle size, rendering, perceived responsiveness).Develop internal dashboards and tools to assist the team in managing the system (usage analytics, quality signals, feedback management).Troubleshoot issues across various browsers, devices, networks, and production environments.Enhance quality through rigorous testing, monitoring, and strategic rollout practices.Your work will involve coding, UI state management, performance analysis, and monitoring production metrics.Who You AreWe are seeking early-career engineers who are passionate about building the user interface for cutting-edge AI models and have a strong commitment to quality and reliability in production environments. A year or two of experience in developing production software is preferred, but above all, we value curiosity, craftsmanship, and a desire to learn.

About the RoleMaincode is on a mission to develop Matilda, a cutting-edge large language model created entirely in Australia. With our new compute cluster now operational, we are scaling the next iteration and preparing for public deployment.This position is integral to our production system that supports Matilda. You will be tasked with creating and maintaining back-end services that ensure the model's practical usability, including APIs, infrastructure, and systems that transform a trained model into a dependable public resource.Our approach to AI development is comprehensive; we architect the systems, manage the infrastructure, train the models, and operate the solutions ourselves. Matilda is not merely a research prototype; it represents a robust production system trained at scale and made available to the public.Maincode boasts one of Australia's largest private AI compute environments, dedicated to the training and operation of our proprietary models. You will directly engage with the systems that deploy and serve a model built from the ground up.Your ResponsibilitiesYour role will involve building and sustaining the services that bridge the model and external interactions.This encompasses tasks such as:Developing and maintaining services for model inference and user requestsDesigning systems for managing requests, sessions, and streaming responsesImplementing reliability features including rate limiting, retries, and graceful failure mechanismsEstablishing authentication and access controls for public useCreating systems for logging, telemetry, and evaluation signalsEnhancing latency, throughput, and reliability in model servingIncorporating new model checkpoints into the production environmentCollaborating closely with training and infrastructure engineers to deploy and maintain the modelMost of your work will occur within production systems, focusing on logs, traces, performance profiles, and deployment pipelines. Our priority is to ensure a system that remains operational, efficient, and predictable under load.Who Thrives in This Role?We seek engineers at the beginning of their careers who are eager to learn how to build and operate production AI systems effectively.You may have one or two years of experience in developing production software. What we value most are curiosity, reliability, and a willingness to understand large-scale system operations.

Join Our Team as an AI Software EngineerAt Maincode, we are pioneering the development of Matilda, Australia’s first large language model built and trained from the ground up. With our new compute cluster operational, we are excited to scale the next iteration of this innovative project.In this role, you will be an integral part of the training infrastructure. Your responsibilities will include constructing the pipelines and tools that enhance the efficiency of Matilda’s training, ensure stability during prolonged runs, and expedite the execution of new experiments. Given that training durations can extend from days to weeks, your work will require meticulous attention to detail.At Maincode, we believe in building AI systems from the ground up: from designing architectures to managing the infrastructure, shaping the training process, and operating the models ourselves. Matilda is not just a research prototype; it’s a fully operational system, developed at scale for open public use.We proudly operate one of Australia’s largest private AI compute environments, dedicated exclusively to training our models. This position does not involve wrapping external APIs or shipping user-facing features; instead, you will focus on the underlying systems that drive the training of a large language model from scratch.

About MaincodeMaincode is pioneering the field of artificial intelligence as a dedicated research and engineering firm, proudly hosting Matilda, Australia’s first and only large language model developed from the ground up. Our advanced AI infrastructure is housed in local data centers, where we design, build, and operate systems ranging from server racks to complex model training and serving architectures.We are in the process of creating an AI Model Factory, a revolutionary compute infrastructure that enables cutting-edge AI research and scalable production systems.About the RoleThis position is a unique opportunity to work at the crossroads of physical systems, large-scale computing, and AI research. You will play an integral role in designing and managing the infrastructure necessary for training large-scale AI models, including GPU racks, high-performance networks, and orchestration systems that ensure smooth operation.We welcome individuals with a strong research mindset and systems-oriented thinking. While prior data center experience is not required, a strong sense of curiosity, ability to reason from first principles, and a quick learning aptitude are essential. Candidates with backgrounds in mechatronics, robotics, or aerospace, coupled with robust computational skills, will find this role particularly rewarding. We provide ample time, mentorship, and resources to help you master these systems, allowing you to develop expertise in one of the most critical technical fields of the next decade.What You’ll DoGain expertise in designing, deploying, and operating the core infrastructure for AI.Engage with GPU clusters, high-speed networking, and extensive Linux systems.Contribute to the architecture of Australia’s inaugural production-scale AI data center systems.Collaborate with AI researchers and engineers in shaping the next wave of model training environments.Innovate new operational and architectural strategies based on fundamental principles.You Might Be a Fit IfYou possess hands-on experience with computational systems, including systems programming, Linux environments, GPU or accelerator programming, distributed or HPC environments (e.g., MPI), automation, or large-scale numerical computation.Your background may include adjacent technical or scientific fields such as mechatronics, robotics, aerospace, or physics, where you have honed strong computational and modeling skills.You have a passion for understanding complex systems from foundational principles.You quickly learn and apply new technologies, adapting to the evolving landscape of AI infrastructure.

At Maincode, our mission is clear: to develop and deliver Matilda, Australia's pioneering conversational AI platform, with a focus on collaboration and innovation. We prioritize our team and the impactful work we do together.Matilda stands as the first fully Australian conversational AI platform, representing a significant technical challenge that we are tackling with a dedicated team that values speed and seriousness in our work.We seek intelligent, humble individuals who are eager to contribute to something meaningful, regardless of how they do so. Whether diving into research literature or mastering the construction of telemetry systems for scalable production infrastructure, your journey with us will be diverse and fulfilling.We value skill and character over traditional qualifications. Many of our top performers come from unexpected backgrounds, holding advanced degrees in adjacent fields or possessing uncommon combinations of experience. What they share is excellence, a capacity for rapid learning, and a commitment to teamwork.If you're looking for a highly detailed job specification, this may not be the right fit. If you find relief in the ambiguity and are excited by the prospect of diving into this challenge, we want to hear from you.

About the RoleMaincode is at the forefront of artificial intelligence, developing the next iteration of Matilda, Australia's pioneering large language model. As we scale this innovative model, we aim to deploy it as a robust live production system.Our approach is rooted in first principles, where we meticulously design architectures, manage infrastructure, guide the training process, and operate the systems that support our models.Matilda is not a mere research prototype; it is a production-ready system intended for open public access. This role is pivotal in shaping the user experience of Matilda, making it not just functional but also intuitive and engaging.As a Product Engineer, you will be instrumental in crafting the user-facing experience of Matilda. Your contributions will extend beyond implementation to encompass how users interact with and perceive the product.This is a collaborative role where you will work closely with UX designers and directly implement your ideas in code, shaping the nuances of user interaction.Key ResponsibilitiesYour contributions will enhance both the public interface of Matilda and its internal tools, including:Designing the core web interface for user interaction with Matilda (chat, sessions, history, settings).Implementing responsive, reliable streaming UX for real-time model outputs (including tokens, partial responses, cancellations, and retries).Contributing to interaction design for both standard and edge-case scenarios (latency, uncertainty, refusals, and errors).Designing UI workflows that promote safe and responsible usage (feedback mechanisms, content management).Iterating on layout, typography, spacing, and interaction details directly through code.Enhancing perceived performance and responsiveness through thoughtful UI design decisions.Developing internal tools and dashboards with an emphasis on usability and clarity.Collaborating closely with backend and infrastructure engineers to integrate APIs, authentication, and system constraints.Your role will balance coding with strategic thinking about user flows, edge cases, and overall product behavior.Ideal Candidate ProfileWe seek engineers at the start of their careers who deeply value user experience, focusing on the feel of the product as much as its functionality. If you have a passion for building engaging interfaces and are eager to learn and grow within a dynamic team, we encourage you to apply.

Maincode is seeking a Signal Engineer in Melbourne to help shape the future of Matilda, a leading Australian language model. This role focuses on transforming massive amounts of raw data into high-quality training sets, directly influencing model performance. Both engineering and editorial skills are essential, as the work blends technical pipeline development with careful judgment about data quality. Key Responsibilities Design and implement large-scale data pipelines for ingesting, cleaning, deduplicating, filtering, and scoring training data (handling volumes from terabytes up to petabytes). Develop classifiers and heuristics to distinguish valuable data from irrelevant or low-quality input. Experiment with different dataset combinations to identify what best improves the language model. Build tools for exploring, sampling, and auditing the data corpus. Collaborate closely with researchers and training engineers to align data strategies with model objectives. Requirements Strong engineering background, particularly with Python, data tools, distributed processing, and building reliable data pipelines. High attention to detail, recognizing that small errors can quickly scale in this environment. Ability to assess the quality of training data accurately. Comfort working with extremely large and complex datasets. Interest in how data decisions influence model behavior. Quick to pick up new concepts; prior experience with large language models is not required. Preferred Experience Experience with web-scale corpora or pre-training data pipelines. Familiarity with unstructured text data. Knowledge of distributed data frameworks such as Spark or Ray. Background in deduplication, quality classification, or tokenization. Additional Details This is a full-time, in-person position based in Melbourne. Maincode cannot provide visa sponsorship, so candidates must already hold valid and unrestricted work rights in Australia.

Join the Engineering Team at EasygoAt Easygo, we are at the forefront of creating exceptional entertainment experiences. Our engineering department thrives in a culture of continuous learning and innovation, pushing the limits of large-scale software design and development. We prioritize growth, knowledge sharing, and engineering excellence, consistently establishing the standard in engineering proficiency.Why become a part of our team?Are you a dedicated and forward-thinking software engineer looking to immerse yourself in a culture that promotes innovation, skill enhancement, and career advancement? We are in search of talented individuals eager to solve intricate challenges, develop scalable solutions, and collaborate with some of the brightest minds in the entertainment sector.Complex Projects, Creative Solutions: Engage in challenging projects that stretch your capabilities. Tackle sophisticated technical challenges and design scalable solutions.Accelerate Your Growth: Benefit from mentorship, training, and hands-on experiences to elevate your technical skills. Learn from industry veterans and gain expertise in software scalability.Collaborate with Industry Leaders: Partner with exceptional engineers, sharing ideas and driving innovation through teamwork.Caring Culture, Career Development: We genuinely care about your professional journey. Our culture emphasizes your development through personalized training programs and mentorship.Embrace Challenges, Celebrate Success: Take on challenges, learn from setbacks, and celebrate achievements collectively.Shape the Future: Your contributions will significantly influence the future of entertainment.If you are passionate about growth, innovation, and collaborating with the best, we would love to have you on our team!

Role Overview Workyard is hiring a Lead Front End Engineer in Sydney. This role focuses on building and refining web applications that deliver a smooth, intuitive experience for users. The position involves close collaboration with teams across the company to bring projects from initial idea to release. What You Will Do Design and implement front-end solutions for client projects Work with cross-functional teams to develop user-friendly web applications Apply modern JavaScript frameworks and responsive design principles Guide projects through all development stages, from concept to launch Mentor junior developers and share technical knowledge Contribute ideas and improvements to ongoing and new projects What We’re Looking For Strong experience with modern JavaScript frameworks Solid understanding of responsive design Ability to lead and support development teams Interest in mentoring and helping others grow This position is based in Sydney.

About the RoleMaincode is at the forefront of AI innovation, creating foundational models built from the ground up on Australian infrastructure. We specialize in designing architectures, managing our own computing resources, optimizing training processes, and deploying robust systems that power our models.We are proud to have developed Matilda, the first large language model entirely built and trained in Australia. Our new compute cluster is operational, and we're excited to scale the next iteration of Matilda, making it accessible for public use.We invite passionate AI researchers to join us in refining the core architecture, training, and evaluation of the large-scale language models that drive Matilda's capabilities.This position emphasizes substantial contributions over incremental benchmarks. You will collaborate closely with engineers who manage large-scale training systems, focusing on designing models that learn efficiently and perform reliably in real-world applications.Your ResponsibilitiesAs part of our team, you will engage throughout the model development cycle, addressing research questions, conducting training runs, and performing evaluations. Your key tasks will include:Designing and testing architectural modifications and training methodologies for large language models.Executing controlled experiments at scale to isolate causal impacts.Investigating failure modes related to reasoning, generalization, robustness, and representation.Defining objectives, data mixes, and optimization strategies that significantly affect model behavior.Creating and enhancing evaluations that measure capabilities and reliability, beyond mere numerical scores.Analyzing training dynamics through logs, metrics, and model outputs.Partnering with machine learning systems engineers on distributed training and operational tasks.Documenting insights and experimental outcomes in clear internal notes to inform design decisions.You will spend a considerable amount of time developing code, running training sessions, analyzing logs, and evaluating outputs to ensure clarity on what enhances the model's performance and the rationale behind it.QualificationsWe value deep analytical reasoning, disciplined experimentation, and the capability to navigate ambiguity effectively. Ideal candidates will possess:Hands-on experience in developing and executing production-level machine learning or research code.Proficiency in Python, with experience in frameworks such as PyTorch or JAX.A strong foundation in transformer architectures and large-scale language models.Familiarity with distributed computing environments and data processing techniques.Excellent problem-solving skills and the ability to work collaboratively within a team.

Role overview Maincode is seeking a Distribution Engineer for Matilda in Melbourne. This position centers on designing and managing AI-driven systems to support how Matilda connects with its users. The focus is on building distribution strategies that enable growth, with a strong emphasis on automation and scalability. The team at Maincode works across research, engineering, and operations to develop solutions that move beyond manual processes. The aim is to create systems that operate independently and efficiently, allowing one person to accomplish what previously required a full team. What you will build AI agent pipelines to generate, test, and optimize ads, content, and messaging at scale Growth strategies for paid, organic, and owned channels Experimentation frameworks to improve performance across the user funnel Real-time feedback loops that connect to data sources and APIs for informed decision-making A self-improving, autonomous distribution engine

Location : Sydney, AU, Hybrid (3 days in office required)About Us At Relevance AI, we are revolutionizing the AI landscape by creating the ultimate platform for AI workforce management.Our mission is straightforward: enable teams to delegate significant tasks to AI agents that emulate expert-level thinking, actions, and collaboration.With Relevance AI, anyone can effortlessly create and oversee intelligent agents that streamline workflows, decision-making, and collaboration—all within a single, cohesive platform. Our cutting-edge technology empowers industry giants like Canva, Databricks, Confluent, Autodesk, Lightspeed, Rakuten, Aveva, Qualified, and Activision Blizzard to enhance excellence across their operations, marketing, and sales.We are proud to be supported by esteemed investors such as Bessemer Venture Partners, Insight Partners, Peak XV, and King River Capital, having successfully raised our Series B funding in April 2025 to propel our growth and redefine the frontiers of agentic automation.With headquarters in San Francisco and Sydney, we embrace a hybrid work model that promotes curiosity, collaboration, and swift execution. We think big, move fast, and succeed together. In 2025, we were honored to be named LinkedIn’s #1 Startup in Australia.If you are ready to shape the future of AI, we invite you to join us.The Role We are seeking a Senior Back-End Software Engineer to join our critical Enterprise team in Sydney.This team is responsible for building and scaling the fundamental platform capabilities that serve Relevance AI’s largest and most complex clients. You will contribute to the systems that ensure our platform is secure, reliable, compliant, and scalable for enterprise-level operations—from identity and access management to auditability and compliance.This position is perfect for an engineer who thrives on solving intricate technical challenges, designing resilient back-end systems, and managing complex projects from inception to completion while collaborating closely with product and customer-facing teams.Each engineering team at Relevance AI is innovating at the forefront of the AI workforce, from empowering individual creators to scaling enterprise-grade AI solutions utilized by thousands of employees worldwide. This role is central to our mission, constructing systems that render AI both usable and reliable, ready for production.At Relevance AI, your contributions will reach customers within hours, offering a unique opportunity to witness the immediate impact of your work. You will have the freedom and trust to spearhead key projects and mentor fellow engineers.

Join Workyard, a rapidly growing venture-backed startup that is revolutionizing workforce management in the construction sector. With an astounding $300 billion spent annually on labor, we are reshaping the industry by integrating trust, transparency, and advanced technology into workforce management, allowing companies and workers to make smarter business decisions.We are on the lookout for a passionate and experienced Senior Front End Engineer to collaborate with our founders in this impactful role. You'll play a crucial part in driving product adoption and fostering revenue growth in an early-stage company.In this role, you will create high-quality software that not only delights our customers but is also enjoyable to work on. You will be supported by a seasoned management team and will have the opportunity to learn alongside other exceptional software engineers.This position offers a hybrid work model: 2 days in our Surry Hills office and 3 days remote.

Audience Republic is at the forefront of revolutionizing ticket sales for events. In response to the increasing demand for virtual experiences, we have witnessed remarkable growth in this sector.Our clientele includes some of the most prominent events globally, showcasing artists such as Justin Bieber, Post Malone, Elton John, RUFUS DU SOL, ODESZA, Flume, and Marshmello.As a rapidly growing B2B SaaS technology startup, we've successfully secured $3.3M in funding from investors. Our dynamic team operates across Sydney, Los Angeles, London, and Taiwan. Discover more about our core values and read our inspiring story.

The Trade Desk is a leading global technology company dedicated to fostering a more transparent and accessible internet for all through principled and intelligent advertising solutions. Our platform processes over 1 trillion queries daily, demonstrating our capability at an unparalleled scale. Beyond our technology, we pride ourselves on cultivating an award-winning culture rooted in trust, ownership, empathy, and collaboration. We cherish the unique experiences and viewpoints that every individual contributes to The Trade Desk, and we are devoted to creating inclusive environments where everyone can express their authentic selves each day.Are you driven by a passion for tackling complex challenges on a large scale? Do you aspire to be part of a vibrant, globally-connected team where your work will significantly impact the development of a better media ecosystem? Join us and discover why Fortune magazine consistently ranks The Trade Desk among the finest small to medium-sized workplaces worldwide.

Location: Sydney, Australia (Hybrid schedule: 3 days per week in the office) Relevance AI develops technology that empowers teams to assign complex and high-impact tasks to AI agents with expert-level capabilities. The platform enables users to create and manage intelligent agents, streamlining workflows, supporting decision-making, and improving collaboration within a single system. Clients include organizations such as Canva, Databricks, Confluent, Autodesk, Lightspeed, Rakuten, Aveva, Qualified, and Activision Blizzard. These partnerships span a variety of industries, helping teams optimize their operations. Backed by investors like Bessemer Venture Partners, Insight Partners, Peak XV, and King River Capital, Relevance AI completed Series B funding in April 2025. With offices in San Francisco and Sydney, the company values curiosity, collaboration, and practical execution. In 2025, LinkedIn recognized Relevance AI as Australia’s #1 Startup. Role overview The Builders team seeks a Senior Back-End Software Engineer based in Sydney. This group advances the builder experience, agent builder, tool builder, and workforce builder features, making the platform more effective for a broad customer base. Engineering teams work on different aspects of the AI workforce, from supporting individual creators to scaling systems for enterprise use worldwide. The focus of this role is to build systems that ensure AI is reliable, effective, and ready for production. What you will do Enhance and maintain the builder experience on the Relevance AI platform Collaborate with engineers to deliver features to users quickly Lead key technical initiatives and mentor team members Reduce unnecessary processes and help drive efficient delivery Contribute to a modern, evolving technology stack centered on speed and efficiency Our culture Relevance AI values rapid innovation, open collaboration, and shared achievement. Engineers have the autonomy to lead, experiment, and see the direct results of their work. The environment encourages curiosity and a commitment to excellence.

Are you passionate about web design and development? Transform your academic achievements into practical experience with our Front-End & CMS Internship at Stake Italy, where you will play a vital role in the ongoing enhancement of our website.What’s in it for you?This internship is perfect for driven and detail-oriented individuals eager to dive into the world of web technologies and digital interfaces. If you're looking to gain hands-on experience with modern front-end tools and content management systems (CMS), this opportunity is tailored for you. Best of all, you will contribute to the upkeep of the Stake.it website!Your responsibilities:As a Front-End CMS Intern, you will collaborate closely with our Graphics and Web Design Specialist. Your day-to-day tasks will include managing website content via the CMS, creating and updating landing pages, and ensuring that all website elements align with our brand guidelines. You will also assist in analyzing technical documentation and contribute to the integration and configuration of various web components.Eligibility: In accordance with Italian regulations, candidates must be unemployed or not currently working at the time of hiring and aged between 18 and 29.

Jobgether is looking for a Senior Software Engineer focused on DevOps with Azure experience. This role centers on improving cloud infrastructure and refining development workflows. Role overview The Senior Software Engineer will collaborate with teams across the company to design, implement, and maintain scalable solutions. The position involves hands-on work with Azure, ensuring systems are robust and support business goals. Key responsibilities Enhance and maintain Azure-based cloud infrastructure Streamline development and deployment processes Work closely with cross-functional teams to deliver scalable solutions Location This position is based in Australia.

Become a Part of Centorrino Technologies: Innovate, Grow, and Thrive with Us!At Centorrino Technologies (CT), we pride ourselves on being more than just a technology provider; we are a vibrant community dedicated to exceeding expectations. Recognized as a Great Place to Work for 2024-2025 and ranked among the Best Places to Work for Medium & Large Size Companies in Australia for 2025, we maintain an impressive eNPS score of 68. Our ongoing mission is to transform the customer experience, and we are eager to welcome a passionate Front End Developer / UI Designer to our dynamic team in Canberra.In this role, you will be at the forefront of creating intuitive, user-focused digital experiences, combining your expertise in interface design and front-end development. Your work will ensure our solutions are accessible, responsive, and of the highest quality, meeting the needs of users, the business, and technical standards.This is a 12-month contract position.

Are you a recent graduate in Marketing or a Front-End Developer with a keen interest in technology and digital experiences? Join Datacom’s Digital and Experience Platforms Team and launch your career at the convergence of marketing, data, and technology.In this exciting role, you will collaborate with a team dedicated to delivering innovative digital solutions aimed at enhancing customer experiences and boosting engagement. You will acquire hands-on experience with industry-leading tools such as Adobe Experience Cloud, Salesforce, Sitecore, Marketing Cloud, and Google, receiving mentorship from seasoned professionals in MarTech and data-driven strategies.About DatacomDatacom is a leading provider of Information Technology professional services in Australia and New Zealand, committed to making a meaningful impact on communities and helping organizations harness the power of technology for innovation and growth.Opportunity DetailsThis is a 12-month Fixed Term Agreement, with the potential for a permanent position.Work from the Datacom office (1 Denison Street, North Sydney) at least 3 days per week.Ideal CandidatesExhibit enthusiasm and a positive attitude.Be a self-learner with a passion for continuous learning.Demonstrate strong teamwork abilities and collaboration skills.Communicate effectively.About Our Early Careers ProgramAs part of the Early Careers Programme, you'll receive support from our Early Careers Team throughout your first year, including induction, mentorship, events, and additional resources to facilitate career growth while you transition into your new role.Why Choose Datacom?Datacom maintains a dynamic and agile culture that resonates with the feel of a smaller business, despite being one of the largest IT service providers in the region. Our passionate team contributes to a unique culture that you will notice from your first interaction with us. We prioritize our people, offering a variety of perks including social events, relaxation spaces, remote working options, flexible hours, and professional development opportunities. Here, you can learn, grow your career, and be your authentic self at work, while receiving recognition for your contributions in a collegial and flat-structured environment.Join us at Datacom, where we engage with some of the largest enterprises in Australia and New Zealand, tackling their most significant challenges and exploring exciting opportunities.