Fullstack Developer

🏢 Summary: Full-Stack / Backend Developer role focused on building and maintaining scalable applications and REST APIs that support client products. The position involves developing new integrations, enhancing existing backend and frontend systems, and improving platform performance and reliability. You will contribute to architecture improvements and work within a cloud-based environment. 🗂️ Requirements: Minimum 3 years commercial experience, Experience with Java, Experience with Spring Boot, Experience with AWS, Experience with MongoDB, Experience with PostgreSQL, Experience with React.js, Experience designing REST APIs, Knowledge of backend architecture, Experience with cloud environments, Understanding of clean code principles, Experience working in Agile environment 📃 Skills: Java, SpringBoot, AWS, MongoDB, PostgreSQL, React, REST, Agile, Cloud, Architecture 🏢 Description: We are looking for an experienced Full-Stack / Backend Developer to join our team and help build scalable applications and APIs supporting our clients’ products. You will work on both backend and frontend solutions, contributing to product development, system improvements, and ongoing platform stability. Your Responsibilities Develop new APIs to support client integrations and business features. Maintain and enhance existing backend and frontend applications. Fix bugs and improve application performance and reliability. Upgrade and support operational aspects of the platform. Identify opportunities to improve product quality, architecture, and development processes. Collaborate with developers, product teams, and stakeholders to deliver high-quality solutions. Participate in code reviews and contribute to best engineering practices. Required Skills Minimum 3 years of commercial experience with: Java Spring Boot AWS MongoDB PostgreSQL React.js Experience designing and developing REST APIs. Knowledge of backend architecture and modern web applications. Experience working with cloud-based environments (AWS). Understanding of software development best practices and clean code principles. Ability to work in an Agile development environment.

🏢 Summary: Contract Senior Full Stack Engineer role focused on designing and developing scalable Java and Python backend services within a microservices architecture. The position involves building REST APIs, integrations, and automation solutions while contributing to data processing and cloud-based platforms. The role also includes technical leadership and ensuring high-quality architecture and coding standards. 🗂️ Requirements: 6+ years software engineering experience, Strong Java backend development experience, Strong Python backend development experience, Hands-on microservices development, Experience building REST APIs, Experience with Spring Boot, Experience with cloud-based services, Experience designing scalable application architectures, Experience with system integrations and automation, Ability to conduct code reviews and ensure code quality standards 📃 Skills: Java, Python, SpringBoot, Microservices, REST, APIs, Cloud, Automation, Architecture, Integration 🏢 Description: We are looking for an experienced Senior Full Stack Engineer to design and develop scalable backend services and APIs while contributing to modern microservices-based architectures. The role involves building Java and Python-based services , supporting data processing capabilities, and ensuring high-quality application development aligned with architectural standards. The candidate will also provide technical leadership , guide development teams, and ensure adherence to coding and integration standards. Send CV to (marcillina.tietjen@dcvtechnologies.co.uk) 📍 Location: Poland 💼 Experience: Senior Level (6+ years) 📄 Position Type: Contract / B2B Key Responsibilities Design and develop scalable backend services and APIs Build Java and Python-based microservices Develop integrations and automation solutions Contribute to data processing and backend platform capabilities Ensure solutions align with application architecture and platform standards Participate in system design, code reviews, and quality assurance Provide technical leadership and mentorship to developers Collaborate with cross-functional teams to deliver reliable backend systems Ensure adherence to coding standards and best practices Required Skills Backend Development Java Spring Boot Microservices architecture REST API development Full Stack / Integration Python development API development and integrations Automation scripting Cloud services Architecture & Engineering Application architecture Integration patterns Microservices design Code quality and peer reviews Experience Required 6+ years of software engineering experience Strong experience developing Java and Python backend services Hands-on experience building microservices and REST APIs Experience designing scalable application architectures Experience working with cloud-based services and integrations Experience mentoring developers and contributing to technical leadership Ideal Candidate Strong backend engineering background Experience building scalable microservices systems Ability to lead development standards and architecture decisions Comfortable working in **collaborative

🏢 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: Long-term remote Full-Stack / API Developer role focused on developing and integrating REST APIs within a large-scale integration and brokerage project. The position involves full-stack development in the Java and JavaScript ecosystem, contributing to architecture decisions and working in an agile, distributed environment. Candidates will translate business requirements into technical solutions and enhance existing systems. 🗂️ Requirements: Strong experience in REST API development and API design, Excellent proficiency in Java (backend), Excellent proficiency in JavaScript (frontend or full-stack), Proven experience as Full-Stack Developer, Experience in agile software development, Ability to analyze and optimize existing codebase, Fluent German (B2+/C1) 📃 Skills: Java, JavaScript, REST, API, Agile, Full-Stack, Integration, Architecture, Documentation, German 🏢 Description: We are seeking experienced Full-Stack / API Developers to join our client’s team. The successful candidates have proficient level of German language strong background in REST API development , Java and JavaScript , along with proficiency in engaging within agile software environments. The role requires collaboration in a remote setup, addressing both frontend and backend development tasks with an emphasis on integrating advisory solutions into an established system. Main Responsibilities: Develop and integrate REST API interfaces into existing systems. Implement technical requirements within a large-scale integration and brokerage project. Engage in full-stack development in the Java and JavaScript ecosystem. Collaborate with internal and external developers in a distributed agile setup. Analyze and evaluate existing codebase, contributing to architectural decisions. Convert business requirements into technical solutions & maintain documentation. Work closely with team leads, business units, and stakeholders. Support onboarding-related topics with guidance from FI. Key Requirements: Strong experience in REST API development & API design . Excellent experience with Java (backend) AND JavaScript (frontend or full-stack). Proven experience as a Full-Stack Developer . Background in agile software development . Ability to analyze, structure and optimize existing code. Proactive communicator & team player. Fluent German (B2+/C1) - essential for documentation & daily communication. Nice to Have: Experience in regulated industries (banking, insurance, energy). IT security / firewall / networking knowledge. Experience with document management systems. Background in integration-heavy or interface-driven projects. Experience in the German financial sector. Other Details: This role involves a one-week onboarding on-site in Hanover, followed by remote work. The engagement is long-term with an annual on-site workshop and potential additional visits based on demand. Travel costs will be calculated separately.

🏢 Summary: Full Stack Developer role focused on building and maintaining cloud-native, event-driven applications on Google Cloud Platform. The position involves developing scalable backend services with Python (FastAPI) and modern frontend applications with React and TypeScript. You will design high-performance APIs and integrate GCP services to deliver production-ready solutions. 🗂️ Requirements: Strong proficiency in Python and FastAPI, Experience with asynchronous programming, Hands-on experience with React and TypeScript, Experience with Google Cloud Platform services, Experience with event-driven architecture and Pub/Sub systems, Experience with Cloud Run, Cloud Functions, Cloud Storage, Experience with Docker and GCP-based CI/CD pipelines, Experience with relational and NoSQL databases, Knowledge of RPC-based integrations, Ability to design synchronous and asynchronous APIs, Polish language proficiency at B2 level 📃 Skills: Python, FastAPI, React, TypeScript, GCP, PubSub, CloudRun, CloudFunctions, CloudStorage, Docker, CICD, CloudSQL, Firestore, BigQuery, SQL, NoSQL, RPC, SDK 🏢 Description: We are looking for an experienced Full Stack Developer to join a team responsible for building and maintaining modern cloud-native applications based on event-driven architecture and Google Cloud Platform technologies. In this role, you will contribute to the design, development, and optimization of scalable backend services and user-facing applications. You will work closely with product, design, and platform engineering teams to deliver high-quality production-ready solutions. Key Responsibilities Design, develop, and maintain scalable web applications using Python (FastAPI) and React Build backend services leveraging Google Cloud Platform SDKs and RPC-based integrations Develop and maintain event-driven architectures using Google Cloud Pub/Sub and related messaging technologies Design and implement high-performance synchronous and asynchronous APIs Create intuitive and responsive user interfaces using React, TypeScript, and modern UI frameworks Collaborate with product, design, and platform teams to deliver new features and enhancements Participate in architecture discussions, code reviews, and technical design sessions Ensure high code quality through testing, automation, and CI/CD best practices Requirements Strong proficiency in Python, including FastAPI and asynchronous programming Experience working with Google Cloud SDKs and cloud-native development Hands-on experience with React, TypeScript, and component-based UI development Solid understanding of event-driven architectures and Pub/Sub messaging systems Experience with Google Cloud services such as Cloud Run, Pub/Sub, Cloud Functions, and Cloud Storage Familiarity with Docker and CI/CD pipelines within GCP environments Experience with relational and NoSQL databases such as Cloud SQL, Firestore, and BigQuery Strong troubleshooting, performance optimization, and observability skills Excellent communication and collaboration skills, with experience working in distributed teams Polish B2 +

🏢 Summary: Offer for a Full Stack Developer / Platform Engineer responsible for designing, developing, deploying, and maintaining modern applications and infrastructure environments. The role covers full application lifecycle management, including backend and frontend development, AI/ML solutions, containerization, Kubernetes administration, CI/CD, and production support. The position combines software engineering with infrastructure, networking, and monitoring responsibilities. 🗂️ Requirements: Very good knowledge of Python, JavaScript, TypeScript, Java, Experience with FastAPI and Flask, Experience with React.js and Node.js, Experience in AI, Machine Learning, Computer Vision, Experience with Docker and Docker Compose, Experience with Kubernetes administration, Experience with CI/CD and GitLab, Knowledge of PostgreSQL, Experience with Kafka, RabbitMQ or MQTT, Very good knowledge of Linux, Knowledge of networking concepts, Experience with MikroTik, Dell, Cisco, Knowledge of Zabbix, Ability to diagnose performance and environment issues, Knowledge of storage solutions QNAP, QSAN, Dell 📃 Skills: Python, JavaScript, TypeScript, Java, FastAPI, Flask, React, Node.js, Docker, Kubernetes, GitLab, CI/CD, PostgreSQL, Kafka, RabbitMQ, MQTT, Linux, Zabbix, AI, ML, LLM, ComputerVision, REST, DNS, MikroTik, Dell, Cisco, QNAP, QSAN 🏢 Description: Do naszego zespołu poszukujemy doświadczonej osoby na stanowisko: Full Stack Developer / Platform Engineer, która będzie odpowiedzialna za projektowanie, rozwój, wdrażanie oraz utrzymanie nowoczesnych systemów aplikacyjnych i środowisk infrastrukturalnych. Jest to rola dla osoby, która swobodnie porusza się zarówno w obszarze developmentu, jak infrastruktury. Szukamy kandydata, który potrafi samodzielnie budować aplikacje, rozwijać integracje, projektować architekturę usług, wdrażać je w środowiskach kontenerowych oraz utrzymywać pełny cykl życia aplikacji— od kodu, przez CI/CD, po monitoring, diagnostykę i utrzymanie produkcyjne. Python, FastAPI, Flask, React.js, Node.js, Docker, Kubernetes, GitLab CI/CD, PostgreSQL, Kafka / RabbitMQ /MQTT, Linux, AI / ML / CV, JAVA Development aplikacji i integracji: Projektowanie i rozwój aplikacji backendowych w Node.js / JAVA / Python (FastAPI, Flask) Rozwój aplikacji frontendowych z wykorzystaniem JavaScript / TypeScript oraz React.js. Projektowanie i rozwój REST API oraz integracji między systemami. Implementacja rozwiązań wykorzystujących AI / Machine Learning / LLM. Tworzenie i rozwój komponentów z obszaru Computer Vision, analizy obrazu oraz przetwarzania danych. Konteneryzacja i Kubernetes: Budowa, konteneryzacja i uruchamianie aplikacji z wykorzystaniem Docker oraz Docker Compose. Projektowanie, wdrażanie i administracja środowisk opartych o Kubernetes. Utrzymanie pełnego cyklu życia aplikacji uruchamianych w klastrach Kubernetes. Utrzymanie oraz diagnostyka podów, namespace’ów i workloadów. Analiza problemów wydajnościowych oraz błędów środowiskowych. Zapewnienie wysokiej dostępności i ciągłości działania usług. CI/CD, monitoring i utrzymanie: Projektowanie, rozwój i utrzymanie procesów CI/CD. Przygotowywanie oraz utrzymanie pipeline’ów wdrożeniowych w oparciu o GitLab / GitLab CI/CD. Automatyzacja buildów, testów, deploymentów i procesów utrzymaniowych. Monitoring środowisk developerskich, testowych i produkcyjnych. Wdrażanie i utrzymanie systemów monitoringu, logowania i alertingu (np. Zabbix). Administracja bazami danych PostgreSQL. Komunikacja, Linux i infrastruktura: Integracja komunikacji asynchronicznej (Kafka, RabbitMQ, MQTT). Administracja systemami Linux. Przygotowanie i utrzymanie środowisk serwerowych i kontenerowych. Diagnostyka sieci (DNS, routing, dostępność usług). Obsługa infrastruktury MikroTik, Dell, Cisco. Integracja i utrzymanie storage (QNAP, QSAN, Dell). Wymagania obowiązkowe: Bardzo dobra znajomość Python / JavaScript / TypeScript / JAVA. Doświadczenie z FastAPI i Flask. Doświadczenie w AI, Machine Learning i Computer Vision. Doświadczenie z React.js i Node.js. Bardzo dobra znajomość Linux. Doświadczenie z Docker, Docker Compose i Kubernetes. Doświadczenie w CI/CD i GitLab. Znajomość PostgreSQL. Doświadczenie z Kafka, RabbitMQ, MQTT. Znajomość zagadnień sieciowych. Doświadczenie z MikroTik, Dell, Cisco. Znajomość Zabbix. Umiejętność diagnozowania problemów. Znajomość storage (QNAP, QSAN, Dell). Mile widziane: Flutter, aplikacje mobilne, monitoring/observability, automatyzacja infrastruktury, mikroserwisy.

🏢 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

🏢 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: Full Stack Developer role responsible for end-to-end architecture and development of a global application automating data collection, compliance reporting, and asset optimization. The position covers frontend (Angular) and backend (Python/FastAPI) development, AI integration, data engineering, and Kubernetes-based DevOps. It involves owning the full product lifecycle in an international, greenfield environment. 🗂️ Requirements: 5+ years of professional software development experience, Expertise in Python and FastAPI, Advanced Angular with TypeScript and RxJS, Strong experience with RESTful microservices, Proficiency in PostgreSQL design and optimization, Hands-on experience with ETL/ELT processes, Experience with Kubernetes and Docker, Experience with CI/CD pipelines (Jenkins or BitBucket), Experience working in SCRUM or Kanban, Bachelor’s degree in Computer Science or related field, Fluent English (B2/C1) 📃 Skills: Python, FastAPI, Angular, TypeScript, RxJS, REST, PostgreSQL, ETL, ELT, Kubernetes, Docker, Jenkins, BitBucket, S3, Linux, SCRUM, Kanban, LLM, AI 🏢 Description: Role Summary We are seeking an experienced Full Stack Developer to join an IT Hub in Poland. You will own the full product lifecycle of a global application designed to automate data collection, compliance reporting, and asset optimization across EMEA, APAC, and Americas. Key Responsibilities Architecture & Development: Design end-to-end modular architecture and develop both Frontend (Angular) and Backend (Python/FastAPI) components. Innovation: Integrate AI tools (LLMs, Code Assistants) to enhance development and automate complex data workflows. DevOps: Manage deployment and scalability on Kubernetes clusters using CI/CD pipelines. Data Management: Handle complex data consolidation, ETL processes, and PostgreSQL optimization. Technical Requirements Backend: Expert Python (FastAPI, RESTful microservices, automation scripts). Frontend: Advanced Angular (TypeScript, RxJS, complex forms/UI). Data: Mastery of PostgreSQL (design & optimization) and ETL/ELT processes. Infrastructure: Kubernetes, Docker, CI/CD (Jenkins/BitBucket), S3 Buckets, and Linux. Methodology: Strong experience in SCRUM/Kanban environments. Qualifications Experience: 5+ years of professional software development. Education: Bachelor’s degree in Computer Science or a related field. Languages: Fluent English (B2/C1) . Soft Skills: Analytical mindset, ability to work autonomously, and strong negotiation skills. What We Offer Opportunity to work on a greenfield project within a prestigious global financial group. Exposure to cutting-edge technologies and international stakeholders. A multicultural, professional environment focused on innovation and agility.

🏢 Summary: Senior Full Stack Developer role focused on modernizing a large-scale corporate banking platform through legacy transformation into a modern API-driven and microservices-based architecture. The position involves backend development with Java and Spring, frontend work with Angular, enterprise integrations, and collaboration within an international Agile team. The offer includes a long-term high-impact project with complex engineering challenges and modern architecture practices. 🗂️ Requirements: Professional experience with Java, Commercial experience with Angular, Experience with Spring Framework, Experience with Spring Boot, Experience with Hibernate, Experience designing REST APIs, Knowledge of Microservices Architecture, Good SQL knowledge, Experience with Jasmine, Familiarity with Git, English communication skills, Experience working in Agile environments 📃 Skills: Java, Angular, Spring, SpringBoot, Hibernate, REST, Microservices, SQL, Jasmine, Git, JUnit, Cucumber, WebFlux, Reactor, DDD 🏢 Description: Join a long-term digital transformation project! We are looking for an experienced Senior Full Stack Developer to join an international team working on the modernization of a large-scale corporate banking platform. This is an excellent opportunity to contribute to the transformation of a legacy system into a modern, API-driven architecture while collaborating with highly skilled professionals in an Agile environment. Location Hybrid model (3 days per week in the office) Office locations: Warsaw (preferred) Gdańsk Gdynia Your responsibilities Design, develop, and maintain REST APIs using Java and Spring Build and enhance backend services based on microservices and monolithic architecture Participate in a large-scale legacy modernization initiative Develop integrations between multiple enterprise systems Contribute to frontend development using Angular Write and maintain unit tests (JUnit & Jasmine) Support BDD testing using Cucumber Perform code reviews and ensure high code quality Work with SQL databases, including query optimization and schema design Collaborate closely with developers, architects, business stakeholders, and QA teams Participate in Agile ceremonies (SAFe framework) Prepare technical documentation for APIs and solutions Required skills Strong commercial experience with Java Experience with Angular Hands-on knowledge of Spring Framework / Spring Boot / Hibernate Experience designing and developing REST APIs Solid understanding of Microservices Architecture Good knowledge of SQL Experience with Jasmine Familiarity with Git Nice to have Experience with Reactive Programming (WebFlux, Project Reactor) Knowledge of Domain-Driven Design (DDD) Experience with Hexagonal (Ports & Adapters) Architecture Experience with Cucumber / BDD Knowledge of SOLID principles and design patterns What you'll work on Modernizing a mission-critical enterprise platform Building modern APIs for corporate banking services Refactoring business logic from a monolithic application into microservices Working in an international team using English as the primary communication language Delivering solutions within a SAFe Agile environment What we offer Long-term project with high business impact Opportunity to work on large-scale system modernization rather than pure maintenance Challenging technical environment focused on modern architecture and best engineering practices International, collaborative team Professional growth through complex engineering challenges Requirements Professional experience developing enterprise applications with Java Experience working with Angular in commercial projects Strong communication skills in English Ability to work effectively in an Agile environment