Fullstack Developer

🏢 Summary: Fullstack Developer role focused on building internal web applications supporting security, DevOps, and AI workflows. The position involves designing frontend and backend architecture, developing integrations with CI/CD, security, and AI systems, and automating internal processes. You will also create dashboards, implement security controls, and ensure high code quality and scalability. 🗂️ Requirements: Minimum 3 years experience as Fullstack Developer, Experience with modern frontend frameworks, Experience with modern backend frameworks, API design and development experience, Experience with system integrations, Multi-source data processing experience, Ability to build internal tools and rapid prototypes, Knowledge of web application security fundamentals, Implementation of RBAC and audit logging, Experience writing tests and maintaining code quality standards, Good command of English 📃 Skills: Fullstack, Frontend, Backend, APIs, Integration, Dataprocessing, CICD, Automation, RBAC, Auditlogging, Testing, Security, Dashboards, Microservices, Cloud, OpenAI, DevOps, Cybersecurity 🏢 Description: Tasks Design and build internal web applications supporting security, DevOps, and AI workflows. Develop frontend and backend architecture, APIs, and integrations with existing systems. Build integration layers aggregating data from CI/CD, security scanners, code repositories, and ticketing tools. Automate workflows such as risk approvals, project onboarding to AI platforms, and access management. Develop interfaces for AI platform operations: experiment execution, model monitoring, and evaluation review. Build security dashboards (alerts, vulnerability status, compliance controls) and implement RBAC and audit logging. Ensure code quality through testing, technical reviews, and performance/scalability improvements. Requirements At least 3 years of experience as a Fullstack Developer. Hands-on experience with modern frontend/backend frameworks and API design. Experience in system integrations and multi-source data processing. Ability to build internal tools and deliver rapid prototypes. Knowledge of web application security fundamentals (RBAC, session security, audit logging). Experience writing tests and maintaining code quality standards. Strong ownership, organization, and technical communication skills. Good command of English. Nice to Have Experience with cloud platforms and microservice architectures. Experience integrating AI provider APIs (e.g., OpenAI) and internal inference services. Experience building operational and analytics dashboards. Familiarity with DevOps and cybersecurity domains. We Offer High ownership and direct impact on internal engineering tooling. Work on cross-domain projects connecting software engineering, security, and AI. Opportunities for growth in an automation-first, quality-focused environment. Stable employment terms and a collaborative team culture. An attractive salary and benefits package (including private medical care and a sports card).

🏢 Summary: Senior Fullstack Engineer role focused on delivering full-stack solutions within an AI-integrated SDLC where AI is embedded across planning, development, review, testing, and deployment. The position combines backend and frontend engineering with AI orchestration, automation, and cloud-native architecture in a remote-first setup. The engineer will also evolve shared AI toolchains and contribute to architectural and code quality standards. 🗂️ Requirements: Team-level AI-integrated SDLC experience across planning, development, review, testing, deployment, Shared AI toolchain management under version control, Hands-on use of Claude Code, GitHub Copilot, Cursor or equivalent as team tools, Building and maintaining custom AI skills and sub-agents for team use, Experience with parallel AI agent orchestration, Spec-driven development using OpenAPI, ADRs, PRDs as AI context, AI-assisted code review integrated into PR process, Working knowledge of AI orchestration frameworks, Backend development with .NET / C# and ASP.NET Core, Frontend development with TypeScript and React or Angular, Experience with SQL databases and ORM frameworks, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with cloud platforms (Azure, AWS, or GCP) 📃 Skills: C#, .NET, ASP.NET, SQL, SQLServer, PostgreSQL, EFCore, OAuth, JWT, Python, Java, Node.js, TypeScript, JavaScript, React, Angular, LangChain, LlamaIndex, CrewAI, Docker, Kubernetes, GitHubActions, AzureDevOps, Azure, AWS, GCP, OpenAPI, CQRS, DDD, EventSourcing, Microservices 🏢 Description: We are looking for a Senior Fullstack Engineer who combines deep technical expertise with real, team-level experience working in an AI-integrated software development lifecycle. Individual use of AI coding assistants is not sufficient for this role. We are specifically looking for engineers who have worked in teams where AI was embedded into every phase of delivery — from planning and design through development, review, testing, and deployment. We follow a remote-first setup with no mandatory regular office visits for this position. From time to time, you may be invited to join in-person meetings in one of our offices (Warsaw, Lodz, Wroclaw, Gdansk, or Bialystok), for example for client visits or team reunions. AI-First Requirements Experience working in an AI-enabled engineering team is mandatory — not a personal workflow preference. You have been part of a team where AI was systematically embedded across all delivery phases: planning, development, review, testing, and deployment. You can speak from direct experience about how it worked, what failed, and what you would change. Specific mandatory requirements: Team-level AI-integrated SDLC experience — shared toolchain, shared configurations, shared assets under version control Hands-on with Claude Code, GitHub Copilot, Cursor, or equivalent as a team tool, not only personal usage Built and maintained custom skills and sub-agents used across a team, not just personally Experience with parallel agent orchestration for concurrent workstream execution Disciplined plan → review plan → execute approach with AI involved at every phase Maintained shared prompt libraries, skill repositories, or agent configurations in version control AI-assisted code review integrated into the PR process: CodeRabbit, Copilot review, or similar Experience with spec-driven or document-driven development where structured specifications (OpenAPI, ADRs, PRDs) serve as AI context inputs, not just human references Working knowledge of at least one AI orchestration framework: LangChain, LlamaIndex, Microsoft Agent Framework, CrewAI, or equivalent Automation-first mindset: proactively identify repetitive or inefficient parts of current work and automate them using AI and other available tools. Cost-aware AI usage: understanding how AI credits are consumed across different tools, models, and workflows, and ability to choose the most appropriate model or approach for each task. Technical Requirements Backend: .NET / C#, ASP.NET Core, SQL Server / PostgreSQL, EF Core, OAuth 2.0 / JWT. Python, Java, or Node.js is a strong plus. Frontend: TypeScript, JavaScript, React(preferable) and/or Angular, state management, async patterns, frontend testing. Architecture: Full spectrum from monolith to microservices — DDD, CQRS, Event Sourcing, event-driven design, message brokers. Infrastructure: Docker, Kubernetes, CI/CD (GitHub Actions / Azure DevOps), Azure / AWS / GCP, structured observability. Responsibilities Deliver full-stack features to a high standard of quality, performance, and reliability Contribute to architectural decisions and system design trade-offs Evolve and maintain the team's shared AI toolchain across all SDLC phases Conduct code reviews including AI-assisted tooling; uphold and enforce engineering best practices Proactively surface risks, bottlenecks, and security concerns Communicate and collaborate directly with clients in English Mentor engineers on both technical fundamentals and AI-augmented workflow practices Professional Qualities Ownership mindset · Strong written and verbal English · Comfortable in client-facing roles · Raises the AI workflow maturity of those around them

🏢 Summary: Full Stack Developer role focused on building, testing, and maintaining scalable and secure web applications across frontend and backend technologies. The position involves developing modern user interfaces, designing APIs, integrating third-party services, and ensuring high performance through testing and CI/CD practices. The role also contributes to architectural decisions and technical strategy. 🗂️ Requirements: Experience with React.js and Vue.js, Proficiency in HTML5, CSS3, JavaScript, TypeScript, Experience with .NET Core or Ruby backend development, Experience building RESTful and GraphQL APIs, Experience with PostgreSQL, MongoDB, or MySQL, Knowledge of Docker and CI/CD pipelines, Proficiency with Git version control, Experience with cloud platforms (AWS, Azure, or GCP), Experience with unit and integration testing frameworks 📃 Skills: React, Vue, HTML5, CSS3, JavaScript, TypeScript, .NET, Ruby, EntityFramework, GraphQL, REST, PostgreSQL, MongoDB, MySQL, Docker, Git, AWS, Azure, GCP, Jest, Mocha, JUnit, CICD 🏢 Description: Description The Full Stack Developer Role will need to be proficient in boththe relevant frontend and backend technologies to develop, test, and maintain scalable web applications, and will work across the entire tech stack, collaborating with cross-functionalteams to deliver robust, secure and performant digital solutions Responsibilities • Design, develop, test and maintain robust, scalable and secure web applications using the full tech stack • Develop user-friendly frontend interfaces for all users using modern JS frameworks • Build and maintain Restful and GraphQL APIs • Integrate third-party services, such as LMS, video conferencing, gamification APIs • Ensure code quality through code reviews, unit testing, and automated CI/CD pipelines • Optimize application performance, security, and scalability • Participate in architectural decisions and contribute to technical strategy • Ensure high performance, accessibility, and responsiveness across devices • Implement automated testing and CI/CD pipelines for efficient delivery Requirements • Frontend : React.js 18, Entity Framework Vue.js, HTML5, CSS3, JavaScript, TypeScript • Backend: MS .NET 8 Core / Ruby • Database : PostgreSQL, MongoDB, MySQL, or similar • DevOps : Docker, CI/CD, Git, cloud platforms (AWS, Azure, GCP) • Testing : Unit and integration testing frameworks (e.g., Jest, Mocha, JUnit Nice to have • Experience with WebRTC, LTI standards, SCORM/xAPI, or real-time systems (e.g., live quizzes, video  classrooms) • Knowledge of learning science, instructional design, or accessibility standards (e.g., WCAG) • Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration • Prior experience in the EdTech domain (e-learning platforms, digital classrooms, LMS) • Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration • Experience with Rabbit MQ middleware • Experience with Tailwind

🏢 Summary: Full Stack Developer role focused on building, testing, and maintaining scalable and secure web applications across frontend and backend. The position involves developing modern user interfaces, implementing APIs, integrating third-party services, and ensuring high performance through automated testing and CI/CD. The role also contributes to architectural decisions and technical strategy. 🗂️ Requirements: Proficiency in React.js and Vue.js, Strong knowledge of HTML5, CSS3, JavaScript, TypeScript, Experience with .NET Core or Ruby backend development, Experience building RESTful and GraphQL APIs, Experience with PostgreSQL, MongoDB, or MySQL, Experience with Docker and CI/CD pipelines, Proficiency with Git version control, Experience with AWS, Azure, or GCP, Experience with unit and integration testing frameworks 📃 Skills: React, Vue, HTML5, CSS3, JavaScript, TypeScript, .NET, Ruby, EntityFramework, REST, GraphQL, PostgreSQL, MongoDB, MySQL, Docker, CICD, Git, AWS, Azure, GCP, Jest, Mocha, JUnit 🏢 Description: Description The Full Stack Developer Role will need to be proficient in boththe relevant frontend and backend technologies to develop, test, and maintain scalable web applications, and will work across the entire tech stack, collaborating with cross-functionalteams to deliver robust, secure and performant digital solutions Responsibilities • Design, develop, test and maintain robust, scalable and secure web applications using the full tech stack • Develop user-friendly frontend interfaces for all users using modern JS frameworks • Build and maintain Restful and GraphQL APIs • Integrate third-party services, such as LMS, video conferencing, gamification APIs • Ensure code quality through code reviews, unit testing, and automated CI/CD pipelines • Optimize application performance, security, and scalability • Participate in architectural decisions and contribute to technical strategy • Ensure high performance, accessibility, and responsiveness across devices • Implement automated testing and CI/CD pipelines for efficient delivery Requirements • Frontend : React.js 18, Entity Framework Vue.js, HTML5, CSS3, JavaScript, TypeScript • Backend: MS .NET 8 Core / Ruby • Database : PostgreSQL, MongoDB, MySQL, or similar • DevOps : Docker, CI/CD, Git, cloud platforms (AWS, Azure, GCP) • Testing : Unit and integration testing frameworks (e.g., Jest, Mocha, JUnit Nice to have • Experience with WebRTC, LTI standards, SCORM/xAPI, or real-time systems (e.g., live quizzes, video  classrooms) • Knowledge of learning science, instructional design, or accessibility standards (e.g., WCAG) • Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration • Prior experience in the EdTech domain (e-learning platforms, digital classrooms, LMS) • Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration • Experience with Rabbit MQ middleware • Experience with Tailwind

🏢 Summary: Full Stack Developer role focused on building, testing, and maintaining scalable and secure web applications across the entire tech stack. The position involves developing modern frontend interfaces, robust backend services, and APIs, while ensuring high performance, quality, and automated delivery through CI/CD pipelines. The role also includes integration with third-party services and contribution to architectural and technical decisions. 🗂️ Requirements: Proficiency in React.js 18, Vue.js, HTML5, CSS3, JavaScript, TypeScript, Experience with MS .NET 8 Core or Ruby, Experience building RESTful and GraphQL APIs, Experience with PostgreSQL, MongoDB, MySQL or similar databases, Experience with Docker, CI/CD pipelines, Git, and cloud platforms (AWS, Azure, or GCP), Experience with unit and integration testing frameworks 📃 Skills: React, Vue, HTML5, CSS3, JavaScript, TypeScript, .NET, Ruby, PostgreSQL, MongoDB, MySQL, Docker, CI/CD, Git, AWS, Azure, GCP, Jest, Mocha, JUnit, GraphQL, REST 🏢 Description: Description The Full Stack Developer Role will need to be proficient in boththe relevant frontend and backend technologies to develop, test, and maintain scalable web applications, and will work across the entire tech stack, collaborating with cross-functionalteams to deliver robust, secure and performant digital solutions Responsibilities • Design, develop, test and maintain robust, scalable and secure web applications using the full tech stack • Develop user-friendly frontend interfaces for all users using modern JS frameworks • Build and maintain Restful and GraphQL APIs • Integrate third-party services, such as LMS, video conferencing, gamification APIs • Ensure code quality through code reviews, unit testing, and automated CI/CD pipelines • Optimize application performance, security, and scalability • Participate in architectural decisions and contribute to technical strategy • Ensure high performance, accessibility, and responsiveness across devices • Implement automated testing and CI/CD pipelines for efficient delivery Requirements • Frontend : React.js 18, Entity Framework Vue.js, HTML5, CSS3, JavaScript, TypeScript • Backend: MS .NET 8 Core / Ruby • Database : PostgreSQL, MongoDB, MySQL, or similar • DevOps : Docker, CI/CD, Git, cloud platforms (AWS, Azure, GCP) • Testing : Unit and integration testing frameworks (e.g., Jest, Mocha, JUnit Nice to have • Experience with WebRTC, LTI standards, SCORM/xAPI, or real-time systems (e.g., live quizzes, video  classrooms) • Knowledge of learning science, instructional design, or accessibility standards (e.g., WCAG) • Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration • Prior experience in the EdTech domain (e-learning platforms, digital classrooms, LMS) • Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration • Experience with Rabbit MQ middleware • Experience with Tailwind

🏢 Summary: Full Stack Developer role focused on building and evolving a modern web application platform with complex workflows and data-driven features. The position involves developing and maintaining both frontend and backend components, ensuring scalability, performance, and reliability. You will collaborate within a cross-functional team to deliver iterative improvements using modern development practices and AI-assisted tools. 🗂️ Requirements: Experience in full stack web application development, Hands-on experience with React, Experience with C# and .NET or comparable backend technologies, Practical experience with SQL-based databases and writing queries, Experience using AI-assisted development tools (e.g., Claude, Cursor), Solid understanding of Git and version control workflows, Ability to work with and extend existing codebases 📃 Skills: React, TypeScript, C#, .NET, SQL, Git, REST, Claude, Cursor 🏢 Description: Project overview The project is a web based application platform designed to support complex user workflows and data driven features. It focuses on performance, maintainability, and iterative delivery of new capabilities. Team You will be part of a cross functional development team consisting of full stack developers, frontend specialists, backend engineers, and QA engineers. The team works collaboratively, reviews code regularly, and follows shared development standards and branching practices. Position overview We are looking for a Full Stack Developer to contribute to the development and evolution of a modern web application platform. You will work on both frontend and backend components, focusing on building reliable, scalable features and improving existing functionality. The role combines hands on development with close collaboration across engineering and product roles. Technology stack React, TypeScript, C#, .NET, SQL based databases, Git, REST APIs, AI assisted development tools such as Claude and Cursor Responsibilities Develop and maintain frontend features using React and related technologies Build and support backend services using C# and .NET Collaborate with team members on feature design, implementation, and code reviews Work with SQL based databases to design, query, and optimize data storage Use AI assisted development tools to improve development efficiency and code quality Follow established Git workflows and branching strategies Participate in troubleshooting, debugging, and performance improvements Requirements Experience building web application platforms in a full stack role Hands on experience with React for frontend development Experience with C# and .NET or comparable backend technologies Understanding of SQL based databases and practical experience writing queries Experience using AI tools to support software development, including Claude or Cursor Solid understanding of Git, version control, and common branching flows Ability to work with existing codebases and contribute to ongoing development Nice to have Experience with cloud based environments Familiarity with CI CD pipelines Experience working on large scale or long term web platforms Exposure to performance optimization and application monitoring What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior Fullstack Developer role focused on designing and building secure, scalable microservices and modern SPA applications in an international environment. The position is hands-on, backend-oriented with active frontend development, emphasizing high code quality, event-driven architecture, and strong security standards. The role includes architecture contribution, CI/CD implementation, and maintaining large-scale systems. 🗂️ Requirements: Strong fullstack development experience (backend and frontend), Senior-level hands-on coding experience, Expertise in Java 17–21, Experience with Spring Boot 3.x microservices, Experience with Kafka and event-driven architecture, Strong SQL knowledge (Oracle), Experience with Redis, Experience with Angular SPA development, Strong TypeScript knowledge, Knowledge of Node.js, Understanding of DDD, Knowledge of web security principles, Experience with OIDC and OAuth2, Experience with CI/CD pipelines, Experience with large-scale applications, Fluent English, Availability to work from Warsaw office 2x/week 📃 Skills: Java, SpringBoot, Kafka, SQL, Oracle, Redis, DDD, Node.js, TypeScript, Angular, Webpack, OIDC, OAuth2, OWASP, Git, GitLab, Jenkins, Maven, Docker, Kubernetes, IntelliJ, VSCode, Jira, Confluence, Python, CICD 🏢 Description: Mission & Responsibilities As a Senior Fullstack Developer, you will design, build, and maintain modern, secure, and scalable applications that support critical business processes. You will work hands-on across both backend and frontend, contributing directly to software development rather than people management. Your mission is to ensure service continuity, high code quality, and alignment with business and security standards, while actively collaborating with international stakeholders in an English-speaking environment. Key Responsibilities Design, develop, and maintain fullstack applications (backend-focused with modern frontend) Build secure, scalable, maintainable, and testable software Develop Java-based microservices using Spring Boot Contribute to Single Page Applications (SPA) development Collaborate with business and technical stakeholders on requirements Participate in architecture design and technical decisions Integrate systems using event-driven architectures (Kafka) Optimize and maintain existing codebases Implement automated testing and CI/CD pipelines Ensure application security (authentication, identity management) Maintain technical documentation Share best practices within developer communities Continuously improve skills and stay up to date with modern technologies Requirements Backend & Architecture Java 17–21 (modern Java, no legacy) Spring Boot 3.x (microservices) Kafka (event-driven systems) SQL (Oracle) Redis (experience or strong understanding) Domain Driven Design (DDD) Frontend Node.js TypeScript Angular (SPA development) Strong knowledge of Angular best practices Webpack (nice to have) Security Strong web security knowledge OIDC & OAuth2 Identity management platforms (nice to have) OWASP awareness (certifications are a plus) DevOps & Tools Git CI/CD: GitLab CI (Jenkins nice to have) Maven (nice to have) Docker & Kubernetes (nice to have) IntelliJ, VS Code Jira & Confluence Additional Python (nice to have) AI-based coding tools (nice to have) Ways of Working Agile (Scrum, Kanban) DevOps mindset Distributed, international collaboration Soft Skills Strong teamwork and collaboration Analytical and problem-solving mindset Independent work on complex topics Adaptability and results-driven attitude Continuous learning mindset Candidate Profile (Must-have) Strong fullstack experience (backend-only profiles will not be considered) Senior-level hands-on developer (not a manager or lead) Experience with large-scale applications Excellent English communication skills Willingness to work from the office in Warsaw 2x/week If you're a hands-on engineer who enjoys building high-quality systems and working in an international environment — we’d love to hear from you.

🏢 Summary: Fullstack Engineer role focused on building and integrating AI-powered features using LLMs within modern web applications. The position involves designing scalable APIs, AI workflows, and hybrid solutions combining AI with business logic across frontend and backend systems. You will collaborate cross-functionally to deliver production-ready AI solutions in a cloud environment. 🗂️ Requirements: 5+ years TypeScript and Node.js experience, 2+ years React or Next.js experience, Experience with cloud platforms (preferably GCP), Experience with PostgreSQL, Experience building AI-powered applications using LLMs and APIs, Strong prompt engineering skills, Experience designing AI workflows and orchestration, Understanding of AI limitations and best practices 📃 Skills: TypeScript, Node.js, React, Next.js, GCP, PostgreSQL, LLMs, APIs, Prompting, LangChain, RAG, Embeddings, VectorDB 🏢 Description: Fullstack Engineer - Node/React/Typescript + AI Solutions We are looking for an experienced Fullstack Engineer to build AI-powered solutions and shape how AI is used across modern systems. What you’ll do: Develop AI-driven features using LLMs Integrate AI APIs into backend and frontend applications Design scalable APIs and AI workflows (prompting, orchestration, response handling) Build hybrid solutions combining AI and business logic Collaborate with Data Engineers and other teams Requirements: 5+ years with TypeScript & Node.js (APIs, integrations) 2+ years with React (or Next.js) Experience with cloud (preferably GCP) and PostgreSQL Experience building AI-powered applications (LLMs, APIs) Strong prompt engineering & AI workflow design skills Understanding of AI limitations and best practices Nice to have: RAG, embeddings, vector databases LLM frameworks (e.g. LangChain)

🏢 Summary: Contract opportunity for a Fullstack Developer to design and deliver web applications using modern Python and JavaScript frameworks, with a focus on AI-driven solutions. The role involves building and maintaining backend services, developing responsive frontend interfaces, and deploying applications in a cloud environment. Onsite presence is required in the Greater Copenhagen Area with a hybrid setup. 🗂️ Requirements: Strong backend development experience with Python, Experience with FastAPI, SQLAlchemy, Alembic, Proficiency in JavaScript and TypeScript, Experience with React and NextJS, Experience with PostgreSQL, Knowledge of Qdrant or other vector databases, Experience with Azure cloud platform, Experience with Docker containerization, Ability to develop and maintain fullstack web applications, Availability to work onsite minimum 3 days per week 📃 Skills: Python, FastAPI, SQLAlchemy, Alembic, JavaScript, TypeScript, React, NextJS, PostgreSQL, Qdrant, Azure, Docker, LLM, LangChain, LangGraph 🏢 Description: Introduction & Summary We are seeking a highly skilled Fullstack Developer. The ideal candidate will possess extensive experience in backend and frontend development, with proficiency in Python and JavaScript frameworks. If you have a passion for developing innovative solutions and a keen interest in AI technologies. Main Responsibilities As a Fullstack Developer, you will be responsible for designing and implementing web applications and services. Your focus will be on enhancing user experiences through effective software solutions. Develop and maintain backend services using Python with FastAPI. Implement frontend solutions utilizing React / NextJS. Work with PostgreSQL (Relational) and Qdrant (Vector) databases. Utilize Azure and Docker for deploying applications. Collaborate with cross-functional teams to define, design, and ship new features. Ensure code quality and maintainability throughout the development process. Debug and optimize existing applications. Key Requirements Strong experience in backend development using Python (FastAPI, SQLAlchemy, Alembic). Proficient in frontend technologies, specifically Javascript/Typescript with React / NextJS. Experience with relational databases, particularly PostgreSQL. Knowledge of vector databases like Qdrant. Familiarity with cloud platforms such as Azure. Experience with Docker for containerization. Experience with LLM / AI technologies is a plus. Bonus: Familiarity with LangGraph / LangChain for Python. Nice to Have Previous experience with AI-driven applications. Understanding of software design patterns and best practices. Experience in agile development methodologies. Start: ASAP End: End of September 2026 Location: Greater Copenhagen Area Onsite/remote: min. 3 days onsite per week

🏢 Summary: Senior Full Stack Developer role focused on owning and scaling a customer-facing dashboard and its underlying systems. The position covers end-to-end development across React frontend and Node.js backend, with responsibility for architecture, APIs, databases, and security. It also emphasizes AI-assisted development and driving high-quality, rapid code delivery. 🗂️ Requirements: Senior-level full stack development experience, Strong React frontend development experience, Strong Node.js backend development experience, Experience building RESTful APIs, Experience building GraphQL APIs, Experience with SQL databases, Experience with NoSQL databases, Experience with authentication and authorization implementation, Experience designing secure applications, Experience with AI-assisted development tools 📃 Skills: React, Node.js, REST, GraphQL, SQL, NoSQL, APIs, Authentication, Authorization, Security, Claude, Codex 🏢 Description: We are seeking a Senior Full Stack Developer who thrives in fast-paced environments and takes full ownership of product experiences. This role is central to building and scaling our customer-facing dashboard and the systems behind it, while driving a culture of rapid, high-quality code delivery powered by modern AI tools. Own end-to-end development of the customer-facing dashboard, including both frontend (React) and backend services Design, build, and maintain scalable full-stack applications using modern best practices Lead frontend development with React, delivering production-ready, high-performance interfaces Architect and implement backend systems using Node.js Develop and maintain APIs using both RESTful and GraphQL approaches Design and manage data models across SQL and NoSQL databases Take full responsibility for application security, including best practices in authentication, authorization, and data protection Build and evolve AI-assisted development workflows (e.g., Claude, Codex) to enable faster, more efficient code shipping Drive and instill a culture of rapid, high-quality delivery across the team, including mentoring current and new hires Collaborate with cross-functional teams to define, design, and ship new features