Lead Full Stack Software Engineer with AI

🏢 Summary: Lead FullStack Engineer role focused on building and scaling high-traffic, public-facing web platforms for a large online marketplace. The position involves leveraging AI tools within the SDLC, owning end-to-end development processes, and delivering performant, production-ready solutions across frontend and backend systems. 🗂️ Requirements: 5+ years of experience building reliable, scalable, highly available systems, Strong knowledge of software architecture and design patterns, Experience applying clean code principles and coding standards, Proficiency with AI development tools and integrating them into SDLC, Experience with AI frameworks, Strong backend development experience with C# or Node.js, Strong proficiency in TypeScript, Strong experience with SQL and NoSQL databases, Strong frontend development skills (HTML, CSS, JavaScript), Experience with component-based frameworks and SSR, Experience with cloud infrastructure and containerization tools, Experience building and consuming APIs in service-based architectures, Experience with CI/CD pipelines, Experience with logging and monitoring tools, Experience with unit testing (backend and frontend), Upper-intermediate English, Availability to work in required time zones 📃 Skills: C#, Node.js, TypeScript, SQL, NoSQL, GraphQL, Redis, HTML, CSS, JavaScript, React, Next.js, Vue.js, Angular, AWS, Terraform, Docker, Git, CI/CD, Datadog, NewRelic, LangChain, Vercel, ChatGPT, Codex 🏢 Description: About the client: Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Developing fast, high-traffic public-facing websites Explore new technologies and help the team to use them Work using AI tools and apply them to the SDLC Following software development best practices while delivering the work Following testing principles while testing your own code to ensure production readiness Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) Requirements: 5+ years developing reliable, highly available, and scalable software systems Strong understanding of software architecture and design patterns Firm grasp of clean code principles and coding standards Strong proficiency using AI tooling , such as ChatGPT/Codex, for rapid development Experience integrating AI tooling into your development environment for streamlined usage Experience with AI Frameworks like Vercel AI SDK, LangChain, etc. Strong proficiency with backend development with C# or Node.js Strong proficiency with TypeScript Strong proficiency with SQL& NoSQL datastores (GraphQL, Redis) Strong proficiency with frontend development (HTML, CSS, JavaScript) Strong proficiency with component-based frameworks and SSR (Next.js/React or Vue.js) or Angular with the desire to learn React/ Vue.js. Hands-on experience developing and maintaining 3rd party content management systems Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker Experience with APIs and developing in a service-based application environment Experience building optimized UIs for performance Proficiency with version control systems such as Git Experience working within a formal CI/CD pipeline Experience with logging, monitoring, and alerting services like Datadog, Newrelic Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend At least Upper-intermediate English level This role requires mandatory timezone coverage: work must align with the Toronto (ET) timezone for LATAM hours and 13:00–21:00 EET for EU hours approximately. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers

🏢 Summary: Senior Full-Stack Engineer role focused on designing and developing full-stack cloud solutions for a high-traffic online marketplace. The position involves building and maintaining scalable web applications, leveraging AI-driven development practices, and working with event-driven microservices architectures. The role includes CI/CD management, cloud migrations, and performance optimization within a distributed agile team. 🗂️ Requirements: Canadian timezone work hours (EDT), 4+ years experience with C# or .NET for web development, 4+ years experience with React for web development, Experience with Azure and Azure to AWS migration, Expert proficiency in GenAI-driven development and GitHub Copilot/Codex integration, Deep understanding of AI agents and autonomous task orchestration, Mastery of prompt engineering techniques (CoT, Few-Shot, prompt optimization), Experience with Kafka and SQL, Strong knowledge of event-driven and microservices architecture, Experience with Application Insights, Experience with unit, component, and integration testing, Experience with Azure DevOps and JIRA, Experience working with agile methodologies (ScrumBan/Kanban, Gitflow) 📃 Skills: C#, .NET, React, Azure, AWS, GenAI, GitHub, Copilot, Codex, Kafka, SQL, ApplicationInsights, Microservices, CI/CD, AzureDevOps, JIRA, Gitflow, ScrumBan, Kanban 🏢 Description: We are looking for a Senior Full-Stack Engineer to join our team, Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Fullstack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Design and develop full-stack cloud solutions from technical analysis to integration testing. Support existing systems Mentor junior engineers on design patterns, code reviews, testing practices, and scalable architecture. Establish documentation standards across teams. Conduct root cause analysis and collaborate with production support to resolve issues. Evaluate third-party software with business and engineering teams. Maintain CI/CD pipelines for applications. Requirements: Canadian timezone work hours (EDT) 4+ years of experience with C# or .NET  for web application development 4+ years of experience with React for web application development Experience with Azure, including migration from Azure to AWS Expert proficiency in GenAI-driven development, GitHub Copilot/Codex integration, rapid prototyping, automated refactoring, and AI-accelerated debugging Deep understanding of AI agents, autonomous task orchestration, reasoning engines, tool-use integration, and multi-step workflow automation Mastery of iterative prompting. Chain-of-Thought (CoT), Few-Shot prompting, output validation, and prompt optimization for production-grade code Familiarity with Kafka, SQL, and performance optimization Strong understanding of event-driven and microservices architecture Experience, Application Insights, and responsive front-end design using React Background in high-traffic websites, performance tuning, and security Ability to communicate technical solutions effectively Expertise in unit, component, and integration testing Experience with Azure DevOps, and JIRA in distributed teams Solid grasp of agile methodologies, including ScrumBan/Kanban and Gitflow Nice to Have : Previous DevOps Experience is a great advantage Experience with Java and Scala Experience with observability tools like Datadog Proficiency with  Java/Spring Boot for building APIs and web applications - nice to have Experience with AWS Previous experience with GitHub This job opportunity for Canadian time zone.

🏢 Summary: Lead Software Engineer role focused on designing and delivering scalable, cloud-native backend systems and distributed workflows using C#/.NET and Azure. The position involves owning the full software development lifecycle and building microservices-based architectures with advanced orchestration using Temporal. You will mentor engineers, optimize performance and scalability, and ensure reliable, secure cloud solutions. 🗂️ Requirements: Extensive experience developing backend services and APIs in C#/.NET, Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL databases, Experience with microservices architecture and distributed systems, Hands-on experience with Temporal .NET SDK or other workflow orchestration tools, Strong understanding of scalable, secure, and reliable cloud-native application design, Experience designing and implementing RESTful or gRPC APIs, Knowledge of data storage best practices including security, availability, and compliance 📃 Skills: C#, .NET, Azure, AKS, AppServices, BlobStorage, SQL, NoSQL, Microservices, Temporal, DurableFunctions, StepFunctions, Airflow, REST, gRPC, Kubernetes 🏢 Description: (#5369) Working hours: 14:00-22:00 CET As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment, and maintenance of product features in software products. You will play a key role in ensuring that our client's storage solutions are reliable, scalable, and support advanced orchestration using technologies such as the Temporal .NET SDK. You will enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You will collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices. Responsibilities: Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers Build and maintain microservices-based architectures using C#, ASP.NET, and others Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL databases to build scalable, secure, and reliable cloud-native solutions Design, implement, and maintain distributed workflows using the Temporal .NET SDK to provide resilient and observable orchestration for business-critical backend processes Integrate Temporal workflows with our .NET microservices architecture and cloud-based infrastructure Design and implement RESTful or gRPC APIs, and ensure seamless integration with other systems and products Optimize architecture and solutions for scalability and availability, with cost and maintenance in mind Identify and address performance bottlenecks and scalability challenges proactively Align across teams for designs, communicate and resolve roadblocks Guide and mentor other engineers through design and code reviews Required Qualifications: Extensive experience developing backend services and APIs in C#/.NET Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases Experience with microservices architecture and distributed systems Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow) Strong understanding of designing and building scalable, secure, and reliable cloud-native applications Experience with designing and implementing RESTful or gRPC APIs Knowledge of data storage best practices, including security, availability, and compliance Preferred Qualifications: Familiarity with integrating orchestration tools into enterprise software environments Experience with performance optimization, cost management, and designing for high availability Excellent communication and collaboration skills Prior experience mentoring engineers and conducting design/code reviews Background in supporting analytics and business intelligence integrations We offer: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits

🏢 Summary: Opportunity for a Lead Full Stack Engineer to drive technical delivery within a scrum team, building and maintaining high-performance, customer-facing applications using C# and Angular. The role combines hands-on development with technical leadership, mentoring, and ownership of scalable cloud-based solutions. 🗂️ Requirements: 7+ years experience with Microsoft development stack, Strong experience with .NET and C#, Experience with .NET Core, Experience with SQL Server and T-SQL, Proficiency in Angular, Proficiency in HTML, CSS, JavaScript, Experience with Git, Experience with Azure, Knowledge of SOLID principles, Experience with Microservices architecture, Experience working with Scrum methodology 📃 Skills: C#, .NET, .NETCore, SQLServer, T-SQL, Angular, HTML, CSS, JavaScript, Git, Azure, Microservices, SOLID, Jira 🏢 Description: #4868 The Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. Our 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible. The  Client is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. The Role: This is a great opportunity for an experienced Lead Full Stack Engineer to join our Software Development team, being part of one of our existing scrum teams. Each agile team includes technical leadership, development, architecture, quality, product and project management roles. We are looking for a Lead Full Stack Engineer comfortable with C# and Angular, with a proven history of building high-performance apps, including high-traffic, customer-facing platforms. Key Responsibilities: Provide knowledge/helping/mentoring to other team members Be responsible for the tech side of the team’s delivery Be a tech leader for your team Work on business requests and development improvements Develop, test, document and maintain our application back end build scalable and reusable code Provide realistic estimates for requests, fixes and new ideas Write clear and precise technical documentation Manage realistic work deadlines Participate in all the scrum ceremonies and be part of the team performance and continuous improvement Knowledge and Experience: 7+ years of experience with Microsoft development stack including; .NET C#, SQL Server T-SQL Important: .Net Core SQL Server, HTML, CSS, JavaScript, Git, Angular Azure, SOLID principles, Microservices architecture, Design principles, Jira Ideally, you will have experience working with Scrum methodology in a variety of contexts; different team sizes, organizational cultures, distributed development, etc. Nice to have: Up to 1 year of experience with GenAI Understanding of performance, scalability, and security requirements in online commerce.

🏢 Summary: Lead FullStack Engineer role focused on building and scaling high-traffic, public-facing web platforms for a major European online marketplace. The position involves full SDLC ownership, AI-assisted development, and delivering highly available, performance-optimized solutions using modern cloud and frontend technologies. Work includes backend and frontend development, cloud infrastructure, CI/CD, and integration of AI frameworks into the development workflow. 🗂️ Requirements: 5+ years of experience building reliable, scalable software systems, Strong knowledge of software architecture and design patterns, Proficiency in C# and TypeScript, Strong experience with SQL and NoSQL databases, Strong frontend development experience (HTML, CSS, JavaScript), Experience with React, Next.js, Vue.js or Angular, Experience with AI tools (ChatGPT, Codex) in development workflows, Experience with AI frameworks (Vercel AI SDK, LangChain), Experience with AWS, Terraform, Docker, Experience building and consuming APIs in service-based architectures, Experience with CI/CD pipelines, Experience with logging and monitoring tools (Datadog, NewRelic), Strong unit testing skills (backend and frontend), Experience with Git, Upper-intermediate English, Availability to work in required time zone (ET or 13:00–21:00 EET) 📃 Skills: C#, TypeScript, SQL, NoSQL, GraphQL, Redis, HTML, CSS, JavaScript, React, Next.js, Vue.js, Angular, ChatGPT, Codex, LangChain, Vercel, AWS, Terraform, Docker, Git, CI/CD, Datadog, NewRelic 🏢 Description: Аbout us: N-iX i s a software development service company that helps businesses across the globe develop successful software products. Founded in 2002 in Lviv, N-iX has come a long way and increased its presence in eight countries Poland, Ukraine, Sweden, Bulgaria, Malta, the UK, the US, and Colombia. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies. About the client: Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Developing fast, high-traffic public-facing websites Explore new technologies and help the team to use them Work using AI tools and apply them to the SDLC Following software development best practices while delivering the work Following testing principles while testing your own code to ensure production readiness Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) Requirements: 5+ years developing reliable, highly available, and scalable software systems Strong understanding of software architecture and design patterns Firm grasp of clean code principles and coding standards Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development Experience integrating AI tooling into your development environment for streamlined usage Experience with AI Frameworks like Vercel AI SDK, LangChain, etc. Strong proficiency with the following technologies: C#+Typescript Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis) Strong proficiency with frontend development (HTML, CSS, JavaScript) Strong proficiency with component-based frameworks and SSR (Next.js/React or Vue.js) or Angular with the desire to learn React/ Vue.js. Hands-on experience developing and maintaining 3rd party content management systems Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker Experience with APIs and developing in a service-based application environment Experience building optimized UIs for performance Proficiency with version control systems such as Git Experience working within a formal CI/CD pipeline Experience with logging, monitoring, and alerting services like Datadog, Newrelic Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend At least Upper-intermediate English level This role requires mandatory timezone coverage: work must align with the Toronto (ET) timezone for LATAM hours and 13:00–21:00 EET for EU hours approximately. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers

🏢 Summary: Lead Software Engineer role focused on building and maintaining scalable backend systems, APIs, and microservices using C#/.NET and Azure cloud technologies. The position involves owning the full software development lifecycle, optimizing distributed systems for scalability and reliability, and mentoring engineers in a fast-paced environment. The role requires full PST working hour coverage and extensive experience with cloud-native architectures and workflow orchestration tools. 🗂️ Requirements: 8+ years of software engineering experience in high scale distributed systems, 8+ years of experience building resilient and highly available web services, Experience developing backend services and APIs in C#/.NET, Experience with Azure services, Experience with microservices architecture and distributed systems, Hands-on experience with workflow orchestration tools, Experience designing RESTful or gRPC APIs, Knowledge of data storage security, availability, and compliance best practices, Experience documenting architectural standards and decisions, Experience in full stack development, Availability to fully cover PST working hours Monday to Friday, B.S., M.S., or PhD in Computer Science or equivalent experience 📃 Skills: C#, ASP.NET, Azure, AKS, Blob, SQL, NoSQL, gRPC, REST, Temporal, Airflow, .NET, Kubernetes 🏢 Description: (#5373) Working hours: 14:00-22:00 CET As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment and maintenance of product features in the Client's software products. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices. Responsibilities: Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in azure and various compliance level data-centers Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL Databases to build scalable, secure, and reliable cloud-native solutions Build and maintain microservices-based architectures using C#, ASP.NET , and others Design and implement RESTful or gRPC APIs, ensure seamless integration with other systems and products Optimize architecture and solution for scalability and availability with cost and maintenance in mind Identify and address performance bottlenecks and scalability challenges proactively Align across teams for designs, communicate and resolve roadblocks Guide and mentor other engineers through design and code reviews Requirements: 8+ years of software engineering experience in high scale distributed systems 8+ years of experience building resilient and highly available web services Extensive experience developing backend services and APIs in C#/.NET Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases Experience with microservices architecture and distributed systems Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow) Strong understanding of designing and building scalable, secure, and reliable cloud-native applications Experience with designing and implementing RESTful or gRPC APIs Knowledge of data storage best practices, including security, availability, and compliance Experience documenting architectural standards and decisions Solid experience in full stack development Availability to fully cover PST working hours from Monday to Friday is a mandatory requirement for this role. B.S., M.S., or PhD in Computer Science or equivalent experience Preferred Qualifications Familiarity with integrating orchestration tools into enterprise software environments Experience with performance optimization, cost management, and designing for high availability Excellent communication and collaboration skills Prior experience mentoring engineers and conducting design/code reviews Background in supporting analytics and business intelligence integrations

🏢 Summary: Opportunity for a Lead Full Stack Engineer to provide technical leadership while building scalable, high‑performance applications using the Microsoft stack and modern cloud architecture. The role combines hands-on full stack development with active adoption of AI-assisted engineering practices across the SDLC. You will drive engineering excellence, mentor teams, and integrate AI capabilities into products and internal tools. 🗂️ Requirements: 7+ years experience with Microsoft stack (.NET, C#, SQL Server, T-SQL), Strong experience with .NET Core and Angular, Proficiency in JavaScript, HTML, CSS, Experience with Git, Experience designing scalable and maintainable systems, Knowledge of SOLID principles and design patterns, Experience with microservices architecture, Experience with Azure or other cloud platforms, Experience working in Scrum environments, Hands-on use of GenAI tools (Copilot, ChatGPT, Cursor) in SDLC, Experience integrating LLM APIs or AI capabilities into applications, Understanding of AI risks, testing, reviews, and compliance guardrails 📃 Skills: .NET, C#, SQL, T-SQL, .NETCore, Angular, JavaScript, HTML, CSS, Git, Azure, Microservices, SOLID, GenAI, LLM, Copilot, ChatGPT, Cursor 🏢 Description: About the Client: The Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible. The Client is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. Short Role Description: This is a great opportunity for an experienced Lead Full Stack Engineer to join our Software Development team as part of one of our established Scrum teams. Each agile team includes technical leadership, development, architecture, QA, product, and project management roles. We are looking for a strong engineering leader who combines deep hands-on development expertise with an AI-first mindset. This role requires an AI Champion — someone who actively applies AI tools across the Software Development Life Cycle and helps elevate engineering productivity, quality, and delivery standards through practical and responsible AI adoption. You will not only build high-performance applications, including high-traffic customer-facing platforms, but also act as a multiplier for engineering excellence by introducing modern practices, tools, and ways of working. Responsibilities: Provide technical leadership, mentorship, and hands-on support to engineers within the team. Design, develop, test, document, and maintain scalable backend and frontend solutions. Deliver high-quality, reusable, and maintainable code aligned with best engineering practices. Actively apply AI-assisted development approaches across design, coding, testing, and debugging. Drive improvements in engineering efficiency, quality, and delivery through practical AI usage. Produce clear and structured technical documentation. Provide realistic estimates and manage delivery timelines effectively. Participate in all Scrum ceremonies and contribute to team performance and continuous improvement. Coach teams on effective usage of GenAI tools and promote AI-first engineering culture. Requirements: 7+ years of experience with Microsoft development stack (.NET / C# / SQL Server / T-SQL). Strong experience with .NET Core, Angular, JavaScript, HTML, CSS, Git. Hands-on experience designing scalable and maintainable systems. Solid understanding of SOLID principles, design patterns, and microservices architecture. Experience working with cloud platforms (Azure preferred). Strong experience working in Scrum environments across different team setups. AI & Engineering Excellence Requirements: Proven hands-on experience using GenAI tools (e.g., Copilot, ChatGPT, Cursor, etc.) to improve development speed, code quality, testing, debugging, and documentation. Practical experience integrating LLM APIs or AI capabilities into applications or internal tools. Understanding of AI limitations, risks, and guardrails (testing, reviews, policies, compliance). Ability to introduce new tools and practices, influence teams, and scale adoption across engineering. Nice to Have: Experience building internal developer productivity tools or engineering automation solutions. Exposure to performance, scalability, and security requirements for large-scale platforms. Personal Attributes: Self-organising problem solver. Able to think outside the box (open thinking). Strong ability to work effectively in a team. Collaborating, motivating and energizing others (Team player). Encourage and drive others to deliver high-quality, cutting-edge software. You will have attention to detail and have a proactive ethos. Always looking for continuous improvement. Excellent verbal and written communication skills, in English. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits

🏢 Summary: Full-stack Software Engineer role focused on designing, building, and maintaining scalable web applications, APIs, and backend services in an AI-first engineering environment. The position emphasizes ownership of AI-assisted development, rigorous code review, test coverage, and reliable CI/CD practices. Engineers collaborate cross-functionally and are accountable for production outcomes across the product lifecycle. 🗂️ Requirements: 2–4+ years experience building web applications, backend services, or APIs, Hands-on experience using AI agents in software development workflows, Ability to review and validate AI-generated code, Experience working in agile and CI/CD environments, Commitment to writing well-tested, reliable software, Strong ownership of production outcomes 📃 Skills: PHP, Laravel, Vue.js, MySQL, DynamoDB, Kubernetes, AWS, Serverless, APIs, CI/CD 🏢 Description: About the Role: Loop is looking for a full-stack Software Engineer to contribute directly to the design, development, and maintenance of core products. You'll build scalable solutions, uphold technical excellence, and be a reliable partner to the engineers around you. AI at Loop Engineering Engineering is AI-first; not aspirationally, but operationally. Every engineer is provisioned with Claude Code and Cursor, and AI agents are the default starting point before opening a file. The role has shifted: you are not primarily a writer of code. You are the judgment layer, determining what should be built, validating that what was built is correct, and owning the outcome in production. AI handles a growing share of implementation, and you own everything that surrounds it. Our Tech Stack: PHP/Laravel, Vue.js, MySQL, DynamoDB, Kubernetes, AWS, Serverless. The hiring process is tech-stack agnostic. What You'll Do - Design, build, and maintain web applications, APIs, backend services, and lambdas for the product line - Start with the agent, not the editor; invest time in planning and intent articulation - Review AI-generated code with rigor and ensure correctness - Include meaningful test coverage in every PR and contribute to a healthy CI/CD process - Collaborate closely with engineers, product managers, and designers - Exhibit ownership: ensure features are stable in production, flag risks early, and make reversible decisions fast - Improve system effectiveness beyond immediate scope, including code review quality and cross-team visibility Your Experience - 2–4+ years building web applications, backend services, or APIs - Use AI agents as a default starting point and articulate your workflow for planning, prompting, and reviewing - Experience identifying and correcting issues in AI-generated code - Clear perspective on where AI adds value and where it introduces risk - Experience with PHP/Laravel, AWS Serverless, or Vue.js is a strong plus - Experience working in agile, CI/CD environments - Commitment to building well-tested, reliable software - Ability to learn from mistakes, seek feedback, and grow through iteration

🏢 Summary: Fullstack Software Engineer role focused on building and scaling end-to-end web services and modern user interfaces in an agile, AI-first environment. The position combines backend development in Python with frontend development in React, emphasizing UX quality, scalable architectures, and cloud-based deployments. The engineer contributes to architecture decisions and delivers high-performance solutions for global-scale e-commerce systems. 🗂️ Requirements: 3+ years of experience with Python, Commercial experience with React, Proficiency in TypeScript, Experience with Redux or similar state management, Knowledge of TDD and clean code principles, Experience designing scalable web architectures, Basic knowledge of AWS (EC2, RDS, S3), Basic DevOps skills (*nix, Docker, Kubernetes, Apache/nginx), Experience with SOA and message queues (e.g., RabbitMQ), Experience working with AI coding tools (e.g., Cursor, Claude Code), Good written and spoken English 📃 Skills: Python, React, TypeScript, Redux, AWS, EC2, RDS, S3, Docker, Kubernetes, Apache, Nginx, RabbitMQ, SOA, TDD, Unix, AI, Cursor, Claude, JavaScript 🏢 Description: Who are we looking for? As a Fullstack Software Engineer, you will be a key part of an agile team responsible for developing end-to-end services and interfaces. We need a "proactive doer" who doesn't just build features but takes full ownership of the User Experience (UX) and business outcomes. You naturally use AI-based tools to accelerate delivery without compromising on quality or aesthetics. You will bring on board: Goal-oriented mindset: Strong focus on customer needs and hitting business objectives. UX Sensitivity: An eye for detail and a drive to build intuitive, high-quality interfaces. Fullstack Proficiency: 3+ years of experience in Python and solid commercial experience with React. Modern FE Stack: Proficiency in TypeScript and state management ( Redux ). AI-Native Workflow: Habitual use of Cursor, Claude Code, or similar agents to boost productivity. Proactive "Can-do" attitude: Ability to work effectively with product owners to turn vision into working software. Technical Excellence: Knowledge of TDD, clean code, and scalable web architectures. Cloud Awareness: Basic knowledge of AWS (EC2, S3) and DevOps (Docker). At least basic knowledge of Amazon Web Services (EC2, RDS, S3) At least basic DevOps skills (*nix, Apache/nginx, Docker, Kubernetes) Experience in SOA, message queues (like RabbitMQ) Good written and spoken English, comfortable with working in an international environment Nice to have Having contributed to Open Source (send us your GitHub id!) Good knowledge of JavaScript build tools (eg. Webpack) and the yarn ecosystem Knowledge of redux-saga, redux-forms, style-loader and css-loader, reselect... Experience with ESLint for linting Advanced DevOps skills (*nix, Apache/nginx, Docker, Kubernetes) Advanced knowledge of Amazon Web Services (EC2, RDS, S3, ELB, EBS, EKS) Experience developing and maintaining complex web architectures Experience in event-driven architecture and distributed systems Experience with NoSQL databases (Mongo, ElasticSearch) Experience in EventStorming Knowledge of GraphQL Knowledge of CQRS/DDD Expertise in cybersecurity topics What do we do? End-to-End Delivery: We build both robust backend APIs and modern, responsive frontends to support the flow of millions of products. UX Optimization: We treat the interface as a critical part of the product, ensuring high quality and friction-less user journeys. AI-First Engineering: We embrace the power of AI to make ourselves more efficient and focus on solving higher-level problems. Scalability & Performance: We monitor and improve our services to handle global e-commerce traffic. Impactful Design: We help with architecture-level decisions, ensuring every project delivers maximum value. How do we work? We have passion for evolving technology and its applications. We believe in teamwork, empowerment and self-organisation We follow Agile principles We are highly autonomous - we choose our own goals and projects which contribute to a company strategy as well as tools that make our work efficient We are closely cooperating with the business stakeholders, data engineers, data science, and other product developers We have a mature product pipeline with predefined initial specs, designs, and architectures for all features.

🏢 Summary: Full Stack Engineer role focused on building and scaling a mission-critical AI-native platform for defence logistics, integrating with legacy government and ERP systems. The position involves end-to-end development across frontend, backend, and databases, delivering customer-driven features in high-stakes environments. Engineers take ownership of production systems, ensuring scalability, reliability, and code quality. 🗂️ Requirements: Proven experience shipping production software end-to-end, Strong proficiency in TypeScript and JavaScript, Experience with at least one frontend framework (React, Svelte, Next.js or similar), Solid knowledge of SQL and database design, Experience with PostgreSQL, Ability to integrate with legacy and external enterprise systems, Understanding of testing, code reviews, and documentation practices, Ability to work in fast-paced, high-accountability environments 📃 Skills: TypeScript, JavaScript, React, Svelte, Next.js, SQL, PostgreSQL, APIs, ERP, Testing 🏢 Description: ABOUT THE COMPANY We're building the AI-native command centre for defence logistics. The US defence industrial base — distributors and manufacturers managing billions of dollars in supply chain — still runs on infrastructure built in the 1980s, stitched together with email threads, supplier quotes, PDFs, government solicitations, and archaic ERP exports. We're changing that. Our platform eliminates the manual bottlenecks slowing down critical national security workflows, helping defence distributors and manufacturers quote faster, win more contracts, and deliver the components that keep allied defence forces operational. We're at seed stage, moving fast, and building a small core engineering team to scale the platform. ABOUT THE ROLE We're looking for a Full Stack Engineer to join the core platform engineering team and contribute directly to the development, scalability, and reliability of mission-critical software supporting defence and supply chain operations. You'll work closely with engineering leadership, founders, and customer-facing deployment teams to design, build, and maintain systems that integrate with complex legacy environments and support high-value, high-impact workflows. No two days will be the same — from integrating with legacy government interfaces to architecting dynamic workflows, the scope is wide and the stakes are real. Onboarding includes an on-site implementation. Expect late nights and direct customer pressure — everyone on the platform team goes through it, because experiencing forward-deployed reality is how you build software that actually works in the field. WHAT YOU'LL WORK ON Full-stack platform development Design, develop, and maintain full-stack application functionality across frontend interfaces, backend services and APIs, and database schemas and data models. Legacy system integrations Implement integrations with external systems including legacy government and enterprise platforms — ERPs, government procurement interfaces, and everything in between. Customer-driven feature delivery Collaborate with forward-deployed teams to translate customer requirements into production-ready features that drive measurable revenue outcomes for clients. Code quality and standards Ensure code quality through best practices, testing, documentation, and code reviews. Set the standard for customer-centric engineering excellence — code is a means to an end, and you build with that in mind. Team mentorship and onboarding Support the onboarding and technical development of new engineering team members as the team grows. WHAT WE LOOK FOR A track record of shipping Experience delivering real projects and products to production. You've owned things end-to-end and have the scars to show for it. TypeScript and JavaScript fluency Strong proficiency in TypeScript and JavaScript, plus solid experience with at least one frontend framework — React, Svelte, Next.js, or similar. SQL and database design Solid knowledge of SQL databases, preferably PostgreSQL. Comfortable designing schemas and reasoning about data models. Software engineering best practices Strong understanding of testing, documentation, code review, and the longer-term cost of shortcuts — while also knowing when pragmatic compromises are the right call. High accountability in fast-moving environments You set reliable deadlines and meet them. When millions of dollars depend on a delivery date, you treat that seriously — and you communicate clearly when something is at risk. THE TEAM A small, tight-knit engineering team working directly with founders and customer-facing deployment strategists. The structure is flat, the feedback is direct, and the work has real-world consequence. You'll have genuine ownership from day one — both in terms of equity and the code you're responsible for. COMPENSATION & BENEFITS Salary $75,000 – $150,000 depending on experience. Equity 0.05% – 0.3% real equity. A meaningful slice at seed stage. Work model Remote, based in Warsaw.