April 8, 2026

Fullstack API Developer

Senior • Remote

Warsaw, Poland

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.

Similar jobs you might like

Technology

co.brick

Senior Fullstack Developer (Angular & Java)

Senior

Remote

Gliwice, Poland

🏢 Summary: Long-term remote contract for a Senior Frontend-focused Fullstack Developer to support modernization of international money transfer systems in online and mobile banking. The role centers on building modern Angular interfaces while contributing to Java-based microservices and ensuring quality through testing. You will work within a complex banking ecosystem delivering clean, scalable end-to-end solutions. 🗂️ Requirements: Senior-level experience, Strong expertise in JavaScript, Strong expertise in TypeScript, Strong expertise in Angular, Solid experience with Java, Experience with Spring, Experience with Spring Boot, Experience with OR-Mappers, Knowledge of relational databases, Experience with microservices architecture, Proficiency in Clean Code principles 📃 Skills: JavaScript, TypeScript, Angular, Java, Spring, SpringBoot, Hibernate, SQL, Microservices, CleanCode 🏢 Description: Join a major modernization initiative within a leading German bank, focusing on international money transfers for both Online Banking and Mobile Banking (BankingApp). You will collaborate with an existing nearshore team that is highly flexible—developing frontends while also building and testing (manually and automatically) Java-based microservices. We are looking for a specialist who can bridge both worlds but maintains a strong primary focus on the Frontend . Details Start: June 2026. Duration: longterm Location: 100% remote (max. 2 site visits per year to Germany, travel costs covered by the Bank). Workload: 1 FTE Languages: Fluent English is a must; German is a "nice to have." Responsibilities Frontend Development: Leading the creation of modern, responsive interfaces for banking applications using Angular. Backend Support: Building and maintaining backend microservices to ensure end-to-end functionality. Quality Assurance: Participating in both automated and manual testing of the developed services. Modernization: Implementing clean, scalable code within a complex international banking ecosystem. Requirements Frontend (Primary): Strong expertise in JavaScript, TypeScript, and Angular . Backend (Fullstack): Solid experience with Java, Spring, Spring Boot , and OR-Mappers (e.g., Hibernate). Databases: Practical knowledge of relational databases and microservices architecture. Standards: Proficiency in Clean Code principles. Seniority: Senior-level experience is required. Nice to Have Experience with Kafka and Openshift .

Technology

B2Bnetwork

Senior FullStack Developer (Java, Angular)

Senior

Remote

Warsaw, Poland

🏢 Summary: Senior FullStack Developer role focused on developing and modernizing a large-scale corporate banking platform. The position involves building and maintaining backend services and Angular frontend components, delivering new features, fixing defects, and supporting production systems within a microservices and monolithic architecture. The role includes active participation in system modernization and REST API development in an Agile environment. 🗂️ Requirements: 5+ years commercial experience with Java 7/8, Experience with Spring Framework and Spring Boot, Experience with Maven, Experience with SQL, Experience with Git, Experience with JSP, Experience with JavaScript, Experience designing and developing REST APIs, Experience in backend service design and implementation, Strong knowledge of unit testing practices, 2+ years experience with Angular, Experience with Jasmine, Experience working with legacy code, Experience working in Agile environment 📃 Skills: Java, Spring, SpringBoot, Maven, SQL, Git, JSP, JavaScript, Angular, Jasmine, REST, Microservices, Agile 🏢 Description: About the Project We are looking for an experienced Senior FullStack Developer to join an international team working on a large-scale corporate banking platform. The application enables corporate clients to manage accounts, execute payments and transfers, handle files and confirmations, and perform a variety of banking operations through a secure online portal. As part of the development team, you will be responsible for maintaining and enhancing a business-critical application, including the delivery of new features, bug fixes, production incident resolution, and implementation of regulatory and business-driven changes. The system consists of both microservices and monolithic components. The team is currently on a modernization journey, gradually transforming the existing platform into a more modern architecture. The working language is English, and the team follows SAFe Agile principles. Responsibilities Design and implement backend services based on business and technical requirements. Develop and maintain REST APIs. Contribute to frontend development using Angular. Write and maintain unit tests. Analyze, maintain, and enhance existing code, including legacy components. Collaborate with cross-functional and international teams. Participate in system modernization and architectural improvements. Support production systems and troubleshoot issues when required. Requirements Must Have 5+ years of commercial experience with: Java 7/8 Spring Framework Spring Boot Maven SQL Git JSP JavaScript Experience in designing and developing REST APIs. Experience in backend service design and implementation based on specifications. Strong understanding of unit testing practices. 2+ years of experience with: Angular Jasmine Experience working in an Agile environment. Willingness to analyze and work with legacy code. Strong communication and collaboration skills. Fluent English (spoken and written). Nice to Have Knowledge of SOLID principles. Familiarity with software design patterns. What We Offer Opportunity to work on a large-scale enterprise platform within the financial sector. Participation in system modernization and transformation initiatives. International and collaborative work environment. Long-term cooperation in a stable project. Exposure to both modern and legacy technologies. Real impact on technical solutions and product development.

Technology

B2Bnetwork

Fullstack Developer (Java + React) Greenfield Project

Senior

Hybrid

Warsaw, Poland

110 - 140 PLN

🏢 Summary: Fullstack Developer role in a greenfield project building a modern application from scratch in close collaboration with business stakeholders. The position involves designing and delivering scalable backend services and responsive frontend solutions in an Agile environment. You will contribute to requirement analysis, architecture decisions, and deliver fully tested end-to-end features. 🗂️ Requirements: Strong commercial experience with Java 17+ (senior level), Minimum 4 years of experience with React, Hands-on experience with Spring Boot, Good knowledge of JPA, Good knowledge of Hibernate, Experience working in Agile/Scrum teams, English proficiency at B2 level or higher 📃 Skills: Java, React, SpringBoot, JPA, Hibernate, Agile, Scrum 🏢 Description: We are launching a greenfield application built entirely from scratch in close collaboration with a dedicated business team. The project is delivered in an Agile environment with a strong focus on communication, collaboration, and high-quality software development. English is the primary working language and is used daily during meetings, workshops, and project discussions. As a Fullstack Developer, you will play a key role not only in delivering clean, scalable, and maintainable code, but also in shaping a high-quality user experience on the frontend side. You will actively contribute to requirement analysis, transforming business needs into user stories, and delivering fully tested end-to-end solutions. Responsibilities Design and develop fullstack solutions (backend and frontend) within a greenfield project Build scalable, maintainable, and high-performance backend services Develop modern, responsive, and user-friendly frontend applications Collaborate closely with business stakeholders to refine requirements and define user stories Deliver end-to-end functionalities together with automated tests Participate in Agile ceremonies, technical discussions, and planning sessions Contribute to architectural decisions and technical improvements Skills & Experience Strong commercial experience with Java 17+ (senior level) 4+ years of experience with React Hands-on experience with Spring Boot Good knowledge of JPA / Hibernate Experience working in Agile/Scrum teams English proficiency at minimum B2 level (spoken and written) Nice-to-have Skills & Experience Selenium Liquibase (database versioning) Maven Cucumber for automated testing Work Model Hybrid model: 3 days onsite / 2 days remote

Technology

emagine Polska

Java Developer

Senior

Remote

Warsaw, Poland

🏢 Summary: Remote B2B Java Developer role focused on developing and enhancing enterprise applications within an agile team. The position involves building, testing, and optimizing Java-based systems under senior guidance while contributing to continuous integration and system maintenance. Long-term cooperation with occasional visits to Germany. 🗂️ Requirements: Fluent German C1, English minimum B1, Bachelor’s degree in Computer Science or equivalent, Minimum 5 years professional experience, Strong knowledge of Java 8+, Minimum 2 years experience with Git, Minimum 2 years experience in Java development projects, Minimum 2 years experience with Spring Boot, Minimum 1 year experience with REST APIs, Minimum 1 year experience with JUnit and Mockito, Strong hands-on experience with Linux, Minimum 1 year experience with Oracle or PostgreSQL, Minimum 1 year experience with Gradle 📃 Skills: Java, SpringBoot, Git, Jira, Confluence, JUnit, Mockito, Linux, Oracle, PostgreSQL, Gradle, REST, React, TypeScript, Scrum 🏢 Description: Mode : remote Contract : B2B Language : German (C1), English (B1) Summary: The Java Developer role primarily focuses on supporting Java-based application development within a collaborative agile team, enhancing enterprise systems under the mentorship of senior developers. Responsibilities: Support Java application development under senior guidance. Collaborate within an agile framework to improve enterprise systems. Utilize Git for version control and project management tools like Jira and Confluence. Participate in coding, testing, and optimizing Java applications. Engage in continuous integration processes and maintain operational environments. Must Haves: Fluent German (C1 level, spoken and written). English skills (minimum B1 level, spoken and written). Bachelor’s degree in Computer Science or equivalent, with at least 5 years of professional experience. Solid theoretical knowledge of Java (minimum version 8). Practical experience with Git (minimum 2 years). Experience in Java development projects (minimum 2 years). Familiarity with Spring Boot (minimum 2 years). Knowledge of RESTful APIs (minimum 1 year). Experience with testing frameworks (JUnit, Mockito) (minimum 1 year). Hands-on experience with Linux (strong command over system functionalities). Experience with databases such as Oracle or PostgreSQL (minimum 1 year). Familiarity with continuous integration using Gradle (minimum 1 year). Nice to Haves: Front-end development experience with React and TypeScript (minimum 1 year). Agile development experience, especially with Scrum (minimum 1 year). Exposure to large-scale public or private sector projects with significant deployment (minimum 1 year). Other Details: Location: Remote within Poland with occasional visits to Germany. Hospitality: Company-provided laptop. Collaboration: Independent work style paired with team collaboration. Duration: Long-term cooperation over 48 months. Decision Timeline: 2-3 months post-May. Documentation: Required copies of diplomas and certifications.

Technology

emagine Polska

Senior Full Stack Developer

Senior

Remote

Lisbon, Portugal

🏢 Summary: Senior Full Stack Developer role focused on designing and implementing high-quality Java-based applications within a microservices architecture. The position involves backend development with Spring Boot, database integration, containerized deployments, and collaboration in an agile team environment. The role emphasizes code quality, operational excellence, and modern DevOps practices. 🗂️ Requirements: 5-6 years of experience in software development, Proven experience with Java, Experience with Spring or Quarkus, Strong proficiency in relational databases, Experience with Docker, Experience with Kubernetes, Experience with GitLab, Experience with Maven, English level B2 or higher 📃 Skills: Java, Spring, Quarkus, SQL, Oracle, Postgres, Docker, Kubernetes, GitLab, Maven, Angular, Kafka, ActiveMQ, Helm, Microservices 🏢 Description: Summary The purpose of the Senior Full Stack Developer role is to design and implement high-quality software solutions while collaborating within a team. This position focuses on leveraging a well-defined technology stack and ensuring the operational excellence of applications. Responsibilities: Develop and maintain robust applications using JAVA and Spring Boot. Work on microservices architecture. Manage application deployment using Helm Charts. Collaborate effectively with team members and communicate openly. Ensure code quality and adhere to best practices in software development. Maintain knowledge of UI frameworks, particularly Angular. Utilize messaging systems like ActiveMQ or event platforms like Kafka as needed. Handle relational databases (e.g., Oracle, Postgres). Must Haves: Proven experience with Java and Spring (or Quarkus). Strong proficiency in relational databases. Minimum of 5-6 years of working experience. Familiarity with Docker, Kubernetes, GitLab, and Maven. Nice to Haves: Experience with Angular UI frameworks. Knowledge of microservices. Experience with message brokers like ActiveMQ or event-streaming platforms like Kafka. Fluency in German. Other Details: Language Proficiency: English (B2 level), German is desirable. Soft Skills: Team player, proactive communication, self-organization. Responsibility: Accountability and ownership for projects. Interest: Engagement in the business field of taxes.

Technology

emagine Polska

Junior Fullstack Developer - Java & React (Lisbon/Porto)

Junior

Hybrid

Lisbon, Portugal

🏢 Summary: Fullstack Developer role focused on building and maintaining web applications using Java on the backend and React on the frontend. The position involves API design, database integration, and unit testing to deliver robust, high-quality software. Candidates will work across the full stack, contributing to both development and code quality processes. 🗂️ Requirements: 2+ years of Java programming experience, Strong knowledge of SQL, Experience with API definition, Proficiency in Git, Experience with JUnit testing, Proficiency in React, Proficiency in Next.js 📃 Skills: Java, React, Next.js, SQL, API, Git, JUnit 🏢 Description: Introduction & Summary: We are seeking a skilled Fullstack Developer specializing in Java and React. The ideal candidate will have over 2 years of experience in Java programming along with a solid understanding of modern frontend frameworks. The role requires proficiency in SQL and API definition, as well as experience with Git and Junit, making it essential for creating robust applications. Main Responsibilities: The Fullstack Developer will take on a pivotal role in our development team, responsible for both backend and frontend tasks. Develop and maintain web applications using Java and React. Define and implement APIs for seamless integration. Collaborate with cross-functional teams to design and deliver software solutions. Conduct unit testing to ensure high-quality code. Utilize Git for version control and collaboration. Key Requirements: 2+ years of experience in Java programming. Strong knowledge of SQL. Experience with API definition. Proficiency in Git. Experience with Junit testing. Proficient in frontend frameworks - React and Next.js. Nice to Have: Experience with Kafka and Spring Kafka (very nice to have). Some experience in microservices development. Familiarity with MongoDB. Experience with Spring Data JPA.

Technology

Britenet

Fullstack React+Java Developer (heating industry)

Senior

Remote

Katowice, SL, Poland

🏢 Summary: Fullstack Developer role for an international heating solutions client, focused on building advanced planning applications using React and Java. The position involves developing backend APIs, responsive interfaces, and managing the full platform lifecycle with CI/CD and cloud technologies. The role requires strong experience in enterprise Java, modern frontend frameworks, automated testing, and AI-assisted development workflows. 🗂️ Requirements: Strong proficiency in React, Strong proficiency in Next.js, Strong proficiency in Node.js with SSR, Advanced programming experience in Java, Advanced programming experience in TypeScript, Experience with Spring Boot, Experience integrating LLMs and AI tools, Experience designing and consuming REST APIs, Experience with relational databases, Experience with NoSQL databases, Experience with MS Azure, Experience with Docker, Experience with Kubernetes, Experience with Terraform, Experience with GitHub Actions, Experience with Gradle, Experience writing Unit tests, Experience writing Integration tests, Experience writing E2E tests, Understanding of Agile (Scrum or Kanban), English level minimum B2, Willingness to travel occasionally to Katowice 📃 Skills: React, Next.js, Node.js, Java, TypeScript, JavaScript, Spring, SpringBoot, REST, SQL, NoSQL, Azure, Docker, Kubernetes, Terraform, GitHubActions, Gradle, LLM, AI, Scrum, Kanban, Vue.js 🏢 Description: About the project For an international client from the heating solutions industry, we are looking for an experienced Fullstack Developer who feels comfortable working with React and Java. Our expectations Strong proficiency in React, Next.js, and Node.js, including Server-Side Rendering (SSR). Advanced, hands-on programming experience with both Java and TypeScript / JavaScript. Deep knowledge of enterprise software development using Java and Spring Boot technologies. Experience integrating LLMs and AI tools into daily workflows to optimize development speed. Mastery of REST APIs and experience with relational/NoSQL databases, especially within MS Azure. Hands-on experience with Docker, Kubernetes, Terraform, and pipeline automation via GitHub Actions and Gradle. Direct experience writing automated Unit, Integration, and E2E tests. Strong understanding of Agile principles including Scrum or Kanban. Very goo command of English (min. B2 level) Willingness to undertake occasional travel to the client's office (Katowice) approximately once per quarter. Welcome Skills Experience with Vue.JS. Key tasks Design advanced planning applications in close collaboration with cross-functional teams. Develop robust backend APIs for resource scheduling, allocation logic, and core modules. Create responsive interfaces focused on performance, security, data visualization, and accessibility. Build your own AI-based work environment using advanced developer tools to maximize efficiency. Manage the platform lifecycle from architectural strategy to operations and CI/CD practices. Design and implement automated test scenarios to guarantee platform success. Maintain active communication with the Technical Product Owner and Product Management organization to align priorities.

Technology

Shimi Sp. z o.o.

Senior/Mid Java Fullstack Developer (m/f/n)

Senior

Hybrid

Krakow, Poland

130 - 141 PLN/hr

🏢 Summary: B2B contract opportunity for a Java Fullstack Developer with a strong backend focus (60–70%) to build and maintain applications within a Digital Platform using a modern tech stack. The role involves developing backend and frontend components, participating in code reviews and technical discussions, and contributing to architectural decisions in a distributed team environment. 🗂️ Requirements: Core Java 11, Advanced Java (JDBC, Collections, Serialization, Memory management), Spring framework, JPA (Hibernate), RDBMS knowledge, Strong SQL skills, RESTful web services, XML and JSON, OpenAPI (Swagger), JavaScript, Typescript, HTML, CSS, Angular 14+, RxJS, Git, Maven, npm, Frontend security (OWASP), Backend security knowledge 📃 Skills: Java, JDBC, Collections, Serialization, Spring, JPA, Hibernate, SQL, RDBMS, REST, XML, JSON, OpenAPI, Swagger, JavaScript, Typescript, HTML, CSS, Angular, RxJS, Git, Maven, npm, OWASP 🏢 Description: For one of our clients, we are looking for a Java Fullstack Developer (m/f/n). As part of the Digital Platform team, you will work on several applications utilizing a modern technology stack. You will get the opportunity to not only learn and grow but also to contribute and be involved in technical discussions and decision making. You will be working in a very nice, dynamic, multi-cultural and geographically distributed team and will receive a lot of support during your onboarding phase. The skill split is 60/40 or 70/30, with a stronger focus on backend. Responsibilities Development (Backend and Frontend) on several applications within the Digital Platform scope, both on new and existing applications Perform code reviews Participate in SCRUM events Participate in technical analysis and discussions Be proactive and take initiative Work closely with your colleagues and communicate Requirements Core Java V11, Advanced Java (JDBC, Collections, Serialization, Memory management) Web communication: XML, JSON, REST Spring framework JPA (Hibernate) Knowledge of RDBMS, specifically SQL skills Web communication: experience with OpenAPI specifications (Swagger) Proficiency in Web languages (JavaScript, Typescript, HTML, CSS) Proficiency in Angular 14+ framework (SPA) Knowledge of reactive programming (RxJS) Good understanding of GIT, Maven, and npm Understanding of Agile Workflow Understanding of Frontend Security topics (owasp) Understanding of Backend Security topics Fluency in English (B2 level) Nice to have: Experience with the Redux pattern (NgRX) & store management Experience with the Nx build system library Build and Deployment automation (Jenkins, Sonar) Microservice architecture and development (Spring Boot) Experience in leading a (geographically distributed) technical team Experience being involved in technical design Our offer: Rate: 130 - 140 PLN/h net + VAT B2B contract via SHIMI Hybrid – 2 days per week from the Warsaw or Kraków office Start: ASAP – notice period up to 2 weeks

Technology

Britenet

Java Fullstack Developer (lottery)

Senior

Remote

Warsaw, Poland

🏢 Summary: The role involves designing, developing, and maintaining cloud-native enterprise applications as a Fullstack Engineer using Java and Angular. The position focuses on building scalable backend and frontend solutions within a microservices architecture, supporting CI/CD, containerization, and secure application design. The engineer will work in Agile teams and contribute to architecture, deployment, and system reliability. 🗂️ Requirements: 5+ years of backend development experience, Strong expertise in Java 17+, Experience with Spring Boot and Spring Security, Strong knowledge of Angular and TypeScript, Experience with PostgreSQL and Hibernate/JPA, Experience with microservices architecture, Hands-on experience with Maven, Git, GitHub, CI/CD, Knowledge of Kubernetes and Docker, Experience with SQL databases, Experience with REST API development, Experience with JUnit, AssertJ, Hamcrest, Bash/Shell scripting skills, Understanding of secure coding practices, Experience in Agile/Scrum environments, English level B2/C1 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Angular, TypeScript, PostgreSQL, Hibernate, JPA, Maven, Git, GitHub, CI/CD, Kubernetes, Docker, SQL, REST, JUnit, AssertJ, Hamcrest, Bash, Liquibase, Helm, Kafka, Python, Go, C, Grafana, Prometheus, Kibana, OWASP, JIRA 🏢 Description: We are looking for an experienced Fullstack Engineer who will be responsible for designing, developing, and maintaining modern enterprise applications in a cloud-native architecture. The person in this role will work on both backend and frontend solutions (Java + Angular). Our expectations 5+ years of professional backend development experience Strong expertise in Java 17+ and Spring ecosystem (Spring Boot, Spring Security) Strong knowledge of Angular and frontend development with TypeScript Experience with PostgreSQL, Hibernate/JPA Experience with cloud-native and microservices architecture Hands-on experience with Maven, Git, GitHub, and CI/CD pipelines Knowledge of Kubernetes, Docker Experience with SQL databases and REST API development Familiarity with JUnit, AssertJ, and Hamcrest Bash/Shell scripting skills Strong understanding of secure coding practices and scalable application design Experience working in Agile/Scrum environments Good English communication skills (B2/C1) Welcome Skills Experience with Kafka and event-driven architecture Knowledge of Python scripting Familiarity with Go (Golang) or C Experience with monitoring and logging tools such as Grafana, Prometheus, and Kibana Knowledge of OWASP Top 10 and application security best practices Experience with JIRA or similar project management tools Previous experience in enterprise-scale distributed systems Key tasks Develop and maintain scalable backend applications using Java 17+ and Spring Boot Design and optimize PostgreSQL databases and manage schema migrations with Liquibase Build and maintain modern frontend applications using Angular Develop secure, high-performance, and cloud-native solutions Contribute to CI/CD pipelines and deployment automation Support containerized deployments using Docker, Kubernetes, and Helm Collaborate with distributed engineering teams in Agile environments Participate in architecture discussions, code reviews, and technical mentoring Ensure application reliability, scalability, and maintainability across backend and frontend layers

Technology

ITDS

Senior Java-React Full Stack Developer – Financial Services

Senior

Remote

Warsaw, Poland

21,000 - 27,300 USD

🏢 Summary: Senior Full Stack Developer role focused on building scalable Java (Spring Boot) backend services and React/TypeScript frontends to enhance financial operations and automation. The position involves leading technical initiatives, leveraging AI-assisted development tools, optimizing SQL Server databases, and managing CI/CD pipelines in Azure DevOps. The role combines hands-on development, architectural standards enforcement, and DevOps best practices in a hybrid EU-based environment. 🗂️ Requirements: 7+ years full stack development experience, Strong expertise in Java and modern frontend frameworks, Advanced proficiency in Spring Boot (Security, Data), Advanced proficiency in TypeScript and React, Hands-on experience with AI development tools (e.g., Claude Code), Deep knowledge of SQL Server and performance tuning, Experience with microservices architecture, Experience designing REST APIs, Experience with Docker and Kubernetes, Experience with Git and Azure DevOps CI/CD, Knowledge of design patterns and secure coding practices, Experience with automated testing frameworks, Fluent English (written and spoken), Legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, SpringData, TypeScript, React, SQLServer, TSQL, Microservices, REST, Docker, Kubernetes, Git, AzureDevOps, CI/CD, AI, Claude, Testing 🏢 Description: Elevate financial operations — craft scalable, intelligent full stack solutions that redefine efficiency! EU-based opportunity with remote work options (up to 5 days per week). As a Senior Java-React Full Stack Developer , you will be working for our client, a leader in financial services, committed to transforming the industry through innovative technology. You will design, develop, and deploy advanced solutions that enhance data accuracy, streamline transaction processing, and support automation, enabling smarter financial workflows. This role offers an exciting chance to lead technical initiatives in a hybrid environment, leveraging cutting-edge AI tools to accelerate development and maintain high standards of quality and security. Your main responsibilities: Design, develop, and deploy scalable Java backend services with Spring Boot to support financial operations and integration points. Build responsive, user-friendly interfaces using TypeScript and React, tailored for finance and operations teams. Leverage agentic AI development tools such as Claude Code or similar to accelerate feature implementation, while validating and refining AI-generated code for security and compliance. Optimize and maintain SQL Server databases, including complex queries, stored procedures, and indexing for high-volume financial workloads. Implement and manage CI/CD pipelines in Azure DevOps, ensuring reliable and efficient deployment. Lead code reviews and provide technical guidance across hybrid teams, including internal engineers, consultants, external vendors, and AI-assisted developers. Establish and enforce coding, architectural standards, and comprehensive technical documentation. Integrate solutions with existing financial systems, such as Sage Intacct, to enhance operational automation. Continuously improve application performance, scalability, and reliability within cloud environments, adapting based on real-world data. Collaborate closely with stakeholders to translate business needs into effective technical solutions. Ensure adherence to secure coding practices, design patterns, and DevOps best practices. Mentoring engineers in adopting AI-assisted development workflows and establishing code quality standards. You're ideal for this role if you have: 7+ years of professional full stack development experience, with strong expertise in Java and modern frontend frameworks. Advanced proficiency in Java (Spring Boot, Security, Data) and TypeScript/React. Hands-on experience with agentic AI development tools such as Claude Code or similar. Deep knowledge of SQL Server, including performance tuning, complex queries, and stored procedures. Solid understanding of microservices architecture, REST API design, and containerization (Docker, Kubernetes). Experience with Git, Azure DevOps CI/CD pipelines, and DevOps practices. Knowledge of software design patterns, secure coding practices, and automated testing frameworks. Excellent communication skills, capable of working effectively in a hybrid team and articulating technical concepts clearly. It is a strong plus if you have: Experience in financial services, private equity, or fund administration. Familiarity with Sage Intacct or other fund management platforms. Azure cloud services expertise. Python scripting capabilities. Experience working in Agile/Scrum environments. Exposure to agentic workflow frameworks such as LangChain or LangGraph. Language Required for the role: Fluent English written and spoken. Eligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.