Lead Full Stack Engineer (Python, React, AI/LLM)

N-iX stands as a leading global software development firm, established in 2002, boasting a vibrant community of over 2,400 technology experts across more than 40 countries. We specialize in delivering cutting-edge technology solutions encompassing cloud computing, data analytics, artificial intelligence, embedded software, IoT, and other domains, serving prominent industry leaders and Fortune 500 companies. Become a part of our mission to innovate technology that instigates real transformation for businesses and individuals around the globe. Our client, a renowned UK-based financial services and investment banking entity, is pioneering an AI-driven document processing and automation platform utilized across various sectors of the broader banking group. This platform harnesses state-of-the-art cloud and AI technologies to revolutionize outdated workflows, elevate data integrity, and expedite digital decision-making. Position Overview: We are in search of a Tech Lead Full Stack Engineer who possesses robust hands-on engineering proficiency and is adept at leading agile software development teams. The ideal candidate will be responsible for defining and steering the technical strategy of the platform, mentoring engineers in the delivery of scalable and secure systems, and actively participating in architectural decisions and solution design. This position demands a mix of profound technical knowledge and leadership skills, especially in environments utilizing Google Cloud, microservices, APIs, Python, and data-heavy processing. The Tech Lead will collaborate closely with product, architecture, data science, and engineering teams to guarantee superior delivery and alignment with business objectives. Join Our Team & Earn Exciting Bonuses!We are thrilled to offer a Welcome Bonus of $3,000 USD for new hires. Additionally, if you refer a friend who is successfully hired, you will receive a Referral Bonus of $2,000 USD! Key Responsibilities: Articulate and communicate the technical vision, architecture, and engineering roadmap for the team and platform. Guide engineers, perform code reviews, offer architectural guidance, and ensure compliance with engineering standards. Steer the technical delivery lifecycle from design through development to deployment and maintenance. Create scalable, high-performance microservices, UIs, and APIs utilizing modern frameworks and cloud-native design principles. Oversee the integration of AI components (e.g., Google Cloud, Vertex AI, Gemini models, and LLM evaluation frameworks). Encourage test-driven development and promote best practices within the team.

Jobgether is looking for a Senior Full-Stack Engineer with strong experience in Python and React. This position is based in Poland and centers on building solutions that support the company’s mission. Role overview This role involves working closely with other engineers and teams to deliver reliable, high-quality software. The focus is on both backend and frontend development, using Python and React as the primary technologies. Collaboration Expect to work with cross-functional groups, contributing to projects that address user needs. The team values open communication and shared problem-solving to achieve project goals. Requirements Professional experience with Python and React Ability to collaborate with diverse teams Comfortable working on both client-side and server-side code

Why Join Our Team?Enjoy the flexibility of 100% remote work.Be part of a vibrant international team.Contribute to cutting-edge technology in the Insurtech sector.About CoverGoAt CoverGo, we are dedicated to transforming the insurance industry by making it entirely digital and accessible to everyone.We are a premier global no-code insurance platform specializing in health, life, and property & casualty.Our accolades include being named Insurtech of the Year across Asia and receiving numerous awards worldwide.We partner with leading insurance enterprises like AXA, Bupa, MSIG, Dai-ichi, and Bank of China Group Insurance.Our diverse team comprises over 120 members from 30 nationalities, all working remotely from various locations.Fully funded by respected VC firms and strategic investors, we boast a substantial global presence in Asia, EMEA, and the Americas.Since January 2021, we have achieved over 30x growth in our annualized revenue.At CoverGo, we believe in fostering a workplace culture that values diversity in thoughts, expressions, and perspectives, ensuring a welcoming environment for all.Role OverviewAs the Lead Full Stack Engineer at CoverGo, you will be pivotal in shaping the technical vision and strategy of our enterprise-grade insurance platform. Your responsibilities will include hands-on full-stack development, guiding architectural decisions, mentoring a team of engineers, and spearheading the integration of AI capabilities to enhance our technology offerings.You'll lead the development lifecycle of our SaaS platform, ensuring alignment with business goals, and promoting scalable software design and continuous delivery.Key ResponsibilitiesOversee the complete development lifecycle of our SaaS platform, from inception to deployment, ensuring technical requirements and business objectives are met.Provide mentorship and technical leadership to a team of Full Stack Engineers, promoting their professional growth through support and feedback.Define and implement the technical strategy for AI integration, collaborating with product and data teams to develop AI-driven features that enhance automation and user experience.Research and assess new AI models, frameworks, and APIs (e.g., OpenAI, Hugging Face, Google AI), leading the development of AI proof-of-concepts to validate innovative concepts.Work closely with product managers, designers, and other stakeholders to ensure high-quality deliverables.

Join our team at Intellectsoft as a Senior Full Stack Developer! In this role, you will work with an innovative AI-powered platform designed to enhance business decision-making and efficiency. Our platform leverages cutting-edge analytics and machine learning to process extensive datasets, offering actionable insights and forecasts that are invaluable across diverse sectors such as healthcare. By seamlessly integrating with existing infrastructures, we empower teams to make swift, data-driven choices, fostering groundbreaking solutions.

Join our dynamic team at Capital as a Senior Full Stack Engineer, where you will play a crucial role in developing innovative web applications using React and Node.js. You will be responsible for designing and implementing scalable solutions, collaborating with cross-functional teams, and mentoring junior developers. If you are passionate about technology and eager to make an impact, we want to hear from you!

This Senior Full-Stack Python Engineer role at nix supports a UK-based financial services and investment banking group. The client is building an AI-powered platform that automates document processing, manages large-scale data, and streamlines workflows by integrating with internal systems. The goal is to modernize digital operations across the bank. Role overview Based in Poland, this position joins a cross-functional engineering team responsible for developing core components of an AI-driven document automation platform. The work combines deep backend engineering in Python with strong front-end or full-stack skills in TypeScript, ideally using frameworks such as React or Next.js. What you will do Design and build scalable APIs and microservices to power document automation features Develop data workflows and operational dashboards Create UI components for both internal tools and user-facing dashboards Collaborate with product, architecture, GenAI, and platform engineering teams Deliver production-ready solutions in cloud environments, especially Google Cloud Requirements Extensive experience in backend development with Python Strong front-end or full-stack skills with TypeScript (React, Next.js, or similar frameworks preferred) Proven ability to design, develop, and deploy systems in cloud environments, with a focus on Google Cloud Hands-on approach and comfort working across the stack This position is based in Poland.

What is Box?Box (NYSE: BOX) stands at the forefront of Intelligent Content Management. Our innovative platform empowers organizations to enhance collaboration, oversee the entire content lifecycle, secure vital information, and revolutionize business workflows through enterprise AI. Established in 2005, Box simplifies operations for leading global entities like JLL, Morgan Stanley, and Nationwide. With headquarters in Redwood City, CA, and offices across the United States, Europe, and Asia, we are committed to helping companies thrive in the era of AI.Joining Box offers a unique opportunity to drive our platform's evolution. Content is the backbone of our work processes, encompassing the billions of files and pieces of information exchanged daily—contracts, invoices, employee records, financials, product specifications, marketing assets, and beyond. Our mission is to bring intelligence to content management, empowering our customers to transform workflows comprehensively. With the integration of AI and enterprise content, the potential for changing how organizations collaborate has never been greater, and at Box, you’ll be at the heart of this significant transition.About the Team:As a Lead Full-Stack Engineer on the Content Creation team, you will be a key player in the development of real-time applications within Box. This team is critical as it represents one of the first points of engagement for customers using our platform. Your contributions will shape the future of content generation within Box.The Content Creation team manages Box's Notes and Canvas products, delivering functionality utilized by our largest user groups, extending beyond just administrative users. This team operates as the sole true real-time service at Box, employing web sockets to facilitate real-time editing. It’s a complex area where we excel, making this a fantastic team to join if you want to impact one of Box's most essential products. The team primarily works with Front-End technologies like React.js, while Back-End tasks are predominantly handled with Node.js.Why Box Needs You?We are looking for you to be a transformative force in developing Box's Core Experiences as part of the broader Build organization, prioritizing value delivery alongside high-tech quality standards.

At Base, our mission is to empower entrepreneurs to conquer the global e-commerce landscape. We provide technology that revolutionizes the way they sell online.Our international team, spanning from Europe to both Americas, delivers an all-in-one system for thousands of sellers. We integrate them with industry leaders such as Amazon, eBay, Shopify, DHL, and FedEx. But we are not just another tech company. We are one of the fastest-growing platforms in the industry, having grown 15-fold in the past three years! We emphasize a culture where real impact and collaboration matter, and our team is at the heart of our innovation.We are currently seeking a Full-Stack Developer to work on the Base Analytics application project, which enables our clients to monitor sales, profitability, and key business metrics.Your role will be crucial in building the frontend application in React that processes large data sets and visualizes them in the form of interactive charts, dashboards, and pivot tables. We are looking for someone who will collaborate on the project with the Lead Frontend Developer, Data Engineers, and DevOps teams operating in the AWS environment (ClickHouse, Lambda, Glue).If you are an experienced React Developer with a solid understanding of the AWS stack and want to make a real impact on product development, this role is for you!

Join a dynamic team at Quorso as a Full-Stack Developer! Founded in 2016, Quorso is revolutionizing retail management with its innovative SaaS solutions. Our Agile Stores technology transforms vast amounts of retail data into actionable insights for store managers, enhancing operational efficiency and sales performance.As a Full-Stack Developer, you will play a crucial role in expanding our platform's capabilities. You'll be involved in creating data transformation pipelines and enhancing our core application, which includes developing APIs, user interfaces, and the underlying infrastructure for core insights.Your Role:You will collaborate with a talented team of engineers to introduce new functionalities into our platform. This role presents an exciting opportunity to contribute to a system that could evolve into a comprehensive task management tool for users and managers alike.Key Responsibilities:Engage in solving business challenges by designing effective user workflows.Contribute to technical design discussions for project scope.Provide constructive feedback during visual design review sessions.Assist in detailed technical implementation planning.Develop features end-to-end, encompassing both backend and frontend using Ruby on Rails, React, and Redux frameworks, with a balanced focus on both (50/50).Essential Qualifications:Proven experience in proactive problem-solving and technical implementation planning.Background in providing feedback for visual designs and working collaboratively in technical environments.Hands-on experience with Ruby on Rails, React, and Redux is essential.

Join EverAI: Pioneering the Future of AI Companionship EverAI — Shaping the Future of AI RelationshipsRanked among the Top 15 Largest & Fastest-Growing AI Companies Globally40 Million Users in Just 2 Years — Join Us to Reach 100M and Beyond!At EverAI, we are redefining how people connect with AI. With over 40 million users, we're not merely developing products; we're creating entirely new categories of companionship.Our flagship platform is the world’s largest AI girlfriend/boyfriend service, transforming how millions experience relationships. This platform is safeguarded by our proprietary moderation system, EverGuard — an AI designed to ensure all our offerings are safe, ethical, and human-centric.And this is just the beginning!About Our TeamWe are a dedicated and innovative team of 75 individuals. Our founders possess significant entrepreneurial expertise in building and scaling tech products from inception to IPO.Your RoleAs a Tech Lead, you will be at the forefront of developing cutting-edge LLM and Generative AI technologies, leading a dynamic team in the R&D department. You will have the opportunity to make a significant impact as we continue to grow and expand our product offerings.

SoftwareMind is hiring a Senior Full-Stack Software Engineer for a 6-month contract in Kraków. This position centers on building and maintaining applications with React, Next.JS, and Node.JS. Role overview This role involves hands-on development of scalable software solutions. Collaboration with other experienced engineers and professionals is a key part of the work. The focus is on delivering software that aligns with client needs and quality expectations. What you will do Design, develop, and maintain applications using React, Next.JS, and Node.JS Collaborate with a skilled team throughout the project lifecycle Ensure software meets client requirements and quality standards Location This contract is based in Kraków.

Full Stack Data EngineerAbout TechTorchTechTorch is an innovative and rapidly growing enterprise technology consultancy that collaborates with some of the world's most prestigious private equity-backed companies. We offer cutting-edge AI-powered solutions, accelerators, and data transformation initiatives designed to deliver significant value swiftly and effectively.Our mission is to revolutionize enterprise technology consulting for private equity. We seamlessly blend the agility of a start-up with the precision and discipline needed by the most discerning investors and operators.Founded by industry veterans, including former Bain consultants, CIOs, and technology leaders, TechTorch possesses extensive expertise in technology, transformation, and value creation. Our focus is on delivering impactful results that matter.About the TeamAt TechTorch, our teams are leading the charge in delivering enterprise technology and data transformation projects that enhance growth and operational performance for private equity-backed organizations.We integrate profound knowledge in data engineering, analytics, and AI with a business-centric approach, crafting and delivering scalable, production-grade solutions that resonate with client goals and timelines.Our global teams collaborate across AI, data, enterprise systems, and digital transformation disciplines to achieve measurable outcomes.About the RoleWe are seeking a Full Stack Data Engineer who possesses a strong foundation in data engineering combined with expertise in business intelligence and analytics.In this role, you will be responsible for designing and constructing scalable data pipelines and architecture in Snowflake, while also managing the downstream analytics layer — creating dashboards, data models, and reporting solutions that empower executive decision-making.You will oversee the entire data stack, from ingestion and transformation to modeling and visualization, ensuring that the data is reliable, efficient, and ready for business use.

Role Overview anyone-ai seeks a Full-Stack Developer - AI Trainer to join its team in Poland. This role blends front-end and back-end development with hands-on involvement in AI projects. The work centers on building and refining AI-driven applications that support the company’s training processes and client solutions. What You Will Do Design, develop, and improve applications that use AI technologies Work closely with cross-functional teams to deliver and optimize software Contribute to the effectiveness of AI training workflows Help ensure the quality and efficiency of solutions delivered to clients Location This position is based in Poland.

Mission Statement: Kontakt.io is revolutionizing the landscape of care operations.Our mission is to minimize waste, reduce costs, and boost revenue by enhancing throughput, asset utilization, and staff productivity. Leveraging cutting-edge AI, Real-Time Location Systems (RTLS), and Electronic Health Records (EHR) data, our platform empowers self-learning agents to automate workflows, respond dynamically, and orchestrate comprehensive care delivery operations.Designed for effortless deployment and scalability, our solution provides a transparent view of spaces, equipment, and personnel, effectively removing inefficiencies and elevating the patient experience. With a remarkable 10X return on investment and over 20 successful use cases, Kontakt.io stands as the preferred platform for efficient and swift care delivery operations.To excel in this role, you must possess a strong passion for developing high-performance, dependable applications. You should have an intrinsic drive to innovate and explore the best tools for tackling scalability challenges.Our Technology Stack:- Backend: Kotlin, Java 15+, Spring Boot, Spring Data, Kafka, MongoDB, PostgreSQL, Docker, Kubernetes, Python, AWS- Frontend: Angular 12, TypeScript, Leaflet.js, PrimeNG, Vue.js, ES6, Nginx deployment, Figma designsWe seek an individual capable of working autonomously, approaching problems from a product-oriented perspective, proposing effective solutions, and executing them proficiently.

Mapbox stands at the forefront of the real-time location platform, enabling a new wave of location-aware businesses. As the only platform providing organizations with a comprehensive toolkit for navigating people, packages, and vehicles globally, Mapbox has garnered the trust of over 4 million registered developers. Our platform is celebrated for its flexibility, stringent security measures, and adherence to privacy regulations. Companies leverage Mapbox's applications, data, SDKs, and APIs to craft tailored and immersive experiences that captivate their customers.About the TeamThe Data Tooling team is responsible for a diverse array of services aimed at reviewing, validating, and editing Mapbox’s global basemap content. Our mission is to provide customers with the most precise and continuously updated Live Map of the world. We utilize sophisticated data processing pipelines and a suite of proprietary tools, refined over the years, enabling us to validate millions of data updates monthly, process thousands of user feedback submissions from vehicles and mobile devices weekly, and annotate millions of anonymized user sessions and telemetry to extract actionable insights at scale.We are on the lookout for a skilled engineer to collaborate with our dedicated group of software engineers, taking ownership of and enhancing our mapping tools to new heights.As artificial intelligence becomes integral to modern engineering workflows, we appreciate engineers who can thoughtfully incorporate AI into design, development, and decision-making processes. Our interview process will involve a discussion on your approach to integrating AI within your engineering workflow.Your Key ResponsibilitiesLead the design, development, and testing of Mapbox tools and services aimed at addressing customer feedback and implementing corrections on third-party data.Tackle complex workflow challenges and enhance both frontend and backend services in response to shifting business requirements, performance metrics, and user feedback.Establish operational metrics to ensure your services meet performance expectations and continuously pursue improvements.Maintain comprehensive documentation for your services.Collaborate closely with the in-house editors team to understand their workflows and gather insights into their daily service usage challenges.Essential QualificationsOver 5 years of experience as a full-stack software engineer.Strong proficiency in JavaScript and modern frontend frameworks, particularly React.

We are seeking a highly skilled and motivated Senior Full Stack Developer proficient in Python 3 and C++. In this role, you will work closely with our engineering and development teams to design, implement, and maintain robust software solutions that meet our clients' needs.Your expertise will help in driving innovation and developing new features while ensuring the performance, quality, and responsiveness of applications.

Role overview Spoton is seeking a Staff Software Engineer focused on full-stack order management. This is a remote role for candidates based in Poland, with a particular emphasis on AI proficiency. What you will do Design and develop scalable features for the order management platform Work on both front-end and back-end components Use AI expertise to enhance user experience and streamline workflows Requirements Extensive experience in full-stack software engineering Demonstrated skill in designing and building scalable systems Comfort with AI tools or frameworks

Role OverviewAs a Full Stack Product Software Engineer at Dropbox, you'll be instrumental in crafting scalable, intuitive, and seamless user experiences that our millions of users rely on. You will engage in both front-end and back-end development, contributing to products that empower individuals and teams globally. Collaboration with cross-functional teams will be key as you bring ideas to life through reliable, scalable features that enhance user satisfaction.This year, Dropbox is committed to accelerating the development and deployment of AI-enabled products, offering a robust technology stack for swift prototyping and dependable integration of AI capabilities.

Waymo, the leader in autonomous driving technology, is dedicated to becoming the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, our focus has been on developing the Waymo Driver—The World’s Most Experienced Driver™. Our mission is to enhance mobility access and significantly reduce traffic-related fatalities. The Waymo Driver currently powers our fully autonomous ride-hail service, having successfully completed over ten million rider-only trips, utilizing its extensive experience from more than 100 million miles driven on public roads and tens of billions of miles in simulation across 15+ states in the U.S.Are you ready to shape the future of transportation with cutting-edge infrastructure for driverless cars?Join our Waymo Simulation team and contribute to the development of groundbreaking systems that will enhance our core simulation capabilities. We are searching for a dedicated Senior Software Engineer who is passionate about creating impactful solutions.

Bolt is looking for a Senior Full Stack Engineer in Warsaw to help shape and expand an internal task management platform. This role centers on building systems that support real-time decision-making and optimize workflows for agents. What you will do Develop and enhance features for the internal platform, focusing on dynamic task distribution and intelligent workforce management. Create efficient user interfaces that enable agents to work effectively and access actionable insights. Lead frontend architecture decisions and guide the technical direction of the team. Work across the full technology stack, collaborating with engineers and stakeholders. Role overview This position involves tackling product and engineering challenges, from designing scalable interfaces to implementing systems that streamline internal operations. The Senior Full Stack Engineer will play a key part in both technical leadership and hands-on development.