Level 3 Software Developer

Join Twilio as a Level 3 Infrastructure Software Engineer and be part of a dynamic team dedicated to building and scaling robust infrastructure solutions. As a pivotal member of our engineering team, you will be responsible for designing, developing, and maintaining systems that empower our communication platform. This is an excellent opportunity for an innovative engineer who thrives in a fast-paced environment and is eager to tackle complex challenges.

Bree serves Canadians who live paycheck to paycheck, focusing on those who need short-term credit solutions. With over 800,000 users, Bree has established a strong presence in the FinTech sector. The company maintains profitability, generates eight-figure annual revenue, and continues to see double-digit monthly growth. Bree has experienced zero voluntary employee turnover. After joining Y Combinator in 2021, Bree raised a $2 million seed round. Role overview The Software Engineer, Infrastructure will work to strengthen the reliability, scalability, and maintainability of Bree's data-driven systems. This position focuses on supporting a growing user base by improving system performance and stability. What you will do Design, build, and maintain infrastructure to support Bree's data systems. Refactor code and improve system architecture to reduce technical debt. Optimize PostgreSQL databases through query tuning, indexing, and capacity planning. Implement Infrastructure as Code using tools such as Pulumi, Terraform, or AWS CloudFormation. Set up monitoring and alerting with tools like Grafana or Datadog. Enhance system observability by improving metrics, logging, and tracing. Requirements Bachelor's degree in Computer Science or a related discipline. Experience building scalable, reliable, and maintainable infrastructure. Strong knowledge of PostgreSQL and hands-on database optimization skills. Familiarity with Infrastructure as Code concepts and tools. Experience with monitoring tools and practices. Location This position is based in Toronto.

Join us at Mechanical Orchard as an Infrastructure Software Engineer, where you will play a crucial role in designing and implementing robust software solutions that enhance our infrastructure capabilities. You will work closely with cross-functional teams to ensure seamless integration and optimal performance of our systems.In this position, you will leverage your technical skills to troubleshoot and resolve complex software issues, while also contributing to the development of innovative solutions that drive our business forward.

Join Mechanical Orchard, a pioneering company dedicated to transforming the most essential and complex business applications—the backbone of today's digital world. We specialize in modernizing these applications, ensuring they can swiftly adapt to market challenges and opportunities.Our innovative approach is born from years of observing the common pitfalls in modernization projects. We aim to mitigate risks and disruptions through our Generative AI platform, Imogen, which leverages cutting-edge data engineering, compiler, and LLM-based techniques to deliver unparalleled solutions in the industry.With a strong foundation in software development and a reputation for influencing the industry, we've contributed significantly to the evolution of Agile practices, including XP. We apply the same level of thoughtfulness and rigor in integrating AI where it brings real value. Our core values focus on doing the right thing, achieving effective outcomes, and fostering kindness within our teams.Together, we are bringing relief to overwhelmed IT teams and witnessing how our expertise and innovative technologies can radically enhance the way organizations operate and innovate. If you share our passion for excellence and collaboration, we welcome your application!

Role overview Veeva Systems is hiring a Senior Software Engineer focused on infrastructure in Toronto, Canada. This role centers on designing and building software that supports and improves our cloud-based platforms. The work directly impacts scalability and performance across our systems. What you will do Design and implement software solutions for infrastructure needs Work closely with teams from different disciplines to strengthen our cloud platforms Contribute to projects that improve system scalability and performance

As a Senior Infrastructure Software Engineer at Afresh Technologies, you will play a crucial role in enhancing our infrastructure to support cutting-edge software solutions. You will collaborate with cross-functional teams to design, implement, and maintain scalable systems that improve our operational efficiency and reliability.

Role Overview Veeva Systems Inc. is looking for a Senior Software Engineer focused on Infrastructure in Toronto, Canada. This role centers on designing, building, and improving infrastructure that supports our software products. What You Will Do Create and refine infrastructure solutions to support application development and deployment Work with teams across engineering, operations, and product to strengthen system reliability and performance Address scalability and security needs as our technology evolves Impact Your work will help shape Veeva’s technology foundation and support the growth of our software applications.

Join Cohere as a Senior Software Engineer, specializing in Agent Infrastructure. In this role, you will lead the design and implementation of robust software solutions that enhance our agent infrastructure capabilities. Collaborate with cross-functional teams to drive innovation and optimize our systems for performance and scalability.

Spellbook is revolutionizing the way transactional lawyers operate by providing the most advanced AI copilot for their needs. Our tool seamlessly integrates with Microsoft Word, empowering legal professionals to draft, review, and negotiate contracts with incredible speed and accuracy—up to 10 times faster than traditional methods. Over 4,000 law firms, in-house legal teams, and solo practitioners trust Spellbook to enhance their workflows and alleviate the burdens of routine contract work.With support from prominent investors such as Khosla Ventures, Thomson Reuters Ventures, Inovia Capital, The LegalTech Fund, Bling Capital, and Moxxie Ventures, we are on a growth trajectory. Recently, Spellbook secured $50 million in Series B funding led by Keith Rabois at Khosla Ventures, bringing our total funding to over $80 million.*This is an active vacancyABOUT THE ROLEWe are on the lookout for a versatile Platform and Infrastructure Engineer to join our dynamic team. In this role, you will engage with our entire technology stack—from cloud infrastructure (AWS, MongoDB, infrastructure as code) to platform enhancements that support product development and ensure system reliability. Your contributions will be crucial in establishing the technical architecture that allows Spellbook to scale and provide exceptional experiences for our users.As a Platform and Infrastructure Engineer, you will play a vital role within our compact yet powerful engineering team of 20 developers. Your focus will be on three main areas:Constructing technology foundations: Take ownership of and enhance core platform systems (including identity and access management, core data models, and internal platform functions).Ensuring top-notch quality: Propel the company towards achieving 99.5% service levels through enhanced monitoring, observability, and reliability practices. Set up QA foundations and development best practices.Boosting development efficiency: Minimize friction in our development environment and CI/CD pipeline. Introduce productivity metrics and tooling enhancements to empower our team to operate with impressive speed.RESPONSIBILITIESManage and optimize infrastructure (AWS, MongoDB, infrastructure as code)Develop platform capabilities including authentication, authorization, entitlement, and AI inferenceEnhance CI/CD pipeline and build toolsOversee worker queue management (BullMQ) and API development

At Docker, we simplify application development, allowing developers to focus on their core objectives. Our remote-first team is globally dispersed, driven by a collective passion for innovation and exceptional developer experiences. With over 20 million monthly users and 20 billion image pulls, Docker stands as the premier tool for building, sharing, and operating applications—trusted by both startups and Fortune 100 companies. We are experiencing rapid growth and are just getting started. Join us for an exciting journey!The Infrastructure Engineering team is responsible for building and managing the cloud-native platform that powers Docker’s product suite. We design resilient services, automate processes where beneficial, and measure key metrics to ensure hundreds of engineers can deploy safely to millions of users every day.A key focus of our team is self-service. We develop streamlined platform capabilities that empower internal teams to provision, deploy, observe, and manage services with minimal friction and robust guardrails. We treat our platform as a product, establishing clear contracts, well-defined defaults, and comprehensive documentation. Our success is evaluated based on user adoption and a reduction in support requests.How We OperateDocumentation and Iteration: We emphasize thorough documentation, code reviews, and incremental releases.Sustainable Reliability: Our priority is to address root causes, establish effective alerts, and implement automation, rather than relying on heroics.Cross-Functional Collaboration: We work closely with product and security teams by default.AI-Driven Execution: We create workflows that reduce manual tasks and enhance incident response, while ensuring guardrails, auditability, and human review.What You Will Focus OnMinimizing manual work through automation, including AI-assisted operational workflows.Creating self-service onboarding and deployment workflows that reduce ticket volume and accelerate delivery timelines.Scaling Kubernetes foundations and evolving our traffic and ingress stack.Key Responsibilities1) Self-Service Platform ServicesDevelop and manage internal platform services and APIs using Go, focusing on provisioning, quotas, policies, cost insights, and platform workflows.Establish streamlined pathways for self-service onboarding and ongoing operations, including access, deployment configurations, observability defaults, and governance frameworks.

Join Waabi as a Software Engineer focused on Evaluation Infrastructure, where you will play a pivotal role in advancing our cutting-edge autonomous technology. You will work collaboratively with cross-functional teams to design, implement, and optimize our evaluation systems, ensuring robust performance and reliability.Your contributions will help shape the future of transportation technology, making it safer and more efficient.

Lyft is looking for a Software Engineer focused on Advertising Infrastructure to help build and improve the systems behind its advertising platform. This position is based in Toronto, Canada. Role overview This role centers on designing, developing, and scaling advertising systems. The work aims to keep these systems efficient and reliable as Lyft’s advertising needs grow. Collaboration Work closely with teams from different disciplines to deliver solutions that strengthen Lyft’s advertising technology and support business objectives. Impact Your contributions will help expand Lyft’s advertising capabilities and support the company’s growth in this area.

Role Overview Veeva Systems is looking for a Senior Software Engineer focused on Infrastructure in Ottawa, Canada. This role centers on designing and building infrastructure solutions that underpin Veeva’s software products. Collaboration with cross-functional teams is a key part of the job, with an emphasis on improving system performance and scalability.

As the Manager of Data Infrastructure, you will report directly to the Director of Data Engineering and spearhead a team of 5-6 engineers responsible for operating essential data platforms that fuel our AI and analytics initiatives. This newly established, hands-on leadership position blends technical expertise with personnel management, requiring you to mentor your team, promote agile methodologies, and incorporate product-focused thinking into infrastructure management. You will implement our data strategy while ensuring operational excellence across platforms that handle billions of transactions monthly. We embrace a Flexible First work model, allowing this role to be performed remotely within the provinces of Ontario and British Columbia. Quarterly travel to the United States will be necessary. We are excited for you to potentially join our team!

YOUR ROLEWe are seeking a talented Backend Software Engineer who possesses a robust infrastructure perspective to become a key member of our Technology team. This position operates at the convergence of backend development and platform engineering, where Kubernetes is a primary focus rather than just a deployment tool.Our platform supports the dynamic scaling of hundreds of servers daily, managing isolated runtime environments within Kubernetes pods. You will play a pivotal role in designing, building, and enhancing the backend services and infrastructure systems that facilitate this process, emphasizing Infrastructure as Code, dynamic scalability, and system reliability.If you thrive on working close to the hardware while also engaging in application development, enjoy system-level thinking, and excel at resolving issues where application and infrastructure behaviors intersect, this role is tailor-made for you.ABOUT XSOLLAXsolla is a premier global commerce entity offering a comprehensive suite of tools and services designed to assist developers in overcoming the unique challenges of the video game industry. From indie studios to AAA titles, our partners rely on Xsolla to effectively fund, distribute, market, and monetize their games. Rooted in our belief in the future potential of video gaming, we are dedicated to bridging opportunities and continually providing innovative resources to creators. Headquartered in Los Angeles, California, Xsolla proudly serves as the merchant of record and has empowered over 1,500 game developers worldwide to expand their player base and drive business growth.For further details, please visit xsolla.com.

Join Us in Transforming the Grocery ExperienceAt Instacart, we believe that everyone deserves access to the food they love, while also having the opportunity to spend quality time with family and friends. We view grocery delivery not just as a service, but as a complex challenge full of possibilities to meet the diverse needs of our community. Our goal is to provide a vital service that customers trust for their grocery and household needs, while also offering flexible earning opportunities for Instacart Personal Shoppers.Instacart has become an essential resource for millions, and we are expanding our team to help propel our mission forward. If you are ready to engage in meaningful work that impacts lives, we welcome you to join us.Flexible Work EnvironmentAt Instacart, we understand that there is no one-size-fits-all approach to productivity. Our team members enjoy the flexibility to choose their ideal work environment—whether from home, a shared workspace, or their favorite café—while fostering community connections through regular in-person events. Discover more about our flexible work culture.Role OverviewThe Data Infrastructure team at Instacart is responsible for building and maintaining the systems that drive our data ecosystem, including a cutting-edge open data lakehouse based on Apache Iceberg, a multi-engine computing platform for both streaming and analytical workloads, and user-friendly tools that empower our Product, Data Science, Machine Learning, Ads, Finance, and engineering teams to work swiftly with data.We are seeking a Staff Software Engineer specializing in Data Infrastructure to join our Data Governance and Foundations Team. In this pivotal role, you will take on the responsibility of leading the architecture and implementation of our open lakehouse foundation, governance strategies, and multi-engine compute initiatives—striking a balance between current reliability and long-term scalability, maturity, and cost-effectiveness.You will collaborate closely with engineering leadership and stakeholders across various departments, including Data Science, ML Platform, Ads Infrastructure, Finance Engineering, Product Engineering, and Security. In a fast-paced environment where your architectural decisions carry significant technical and financial implications, you will have the autonomy to make impactful contributions. If you enjoy tackling complex, large-scale challenges and are willing to roll up your sleeves, this is your chance to influence the direction of our data infrastructure.

Role overview As a Senior Software Engineer focused on AI Infrastructure at jobgether, the main responsibility is to shape and support the technical foundation for the company’s AI initiatives. The work involves both creating new systems and refining current technology to help meet evolving business objectives. What you will do Design and develop infrastructure that enables AI systems to operate efficiently and reliably Maintain and enhance existing AI technology stacks to ensure ongoing performance and scalability Apply technical expertise to solve complex engineering problems related to AI infrastructure Work environment This position is based in Canada and involves working closely with a collaborative team. The role provides opportunities to engage with advanced technologies in support of the company’s AI goals.

Join Thumbtack as a Software Engineer specializing in AI/ML Infrastructure. In this role, you will contribute to the development and enhancement of innovative AI and machine learning solutions that empower our platform. We are looking for a proactive and collaborative team member who is passionate about technology and eager to tackle complex challenges.

Speechify is looking for a Software Engineer to focus on Data Infrastructure & Acquisition in Waterloo, Canada. This position centers on building and refining the data systems that power Speechify’s audio and text products. The work contributes directly to the company’s mission of making information accessible to all. Role overview This role involves designing and developing the infrastructure that supports Speechify’s core products. The engineer will help create tools and systems for acquiring and managing data, ensuring that the products have reliable and scalable data pipelines. What you will do Design and develop data infrastructure to strengthen Speechify’s products Build tools and systems for acquiring and managing data Work closely with engineering teams to support new features and product improvements Location This position is based in Waterloo, Canada.