June 3, 2026

Senior FullStack Developer (Java, Angular)

Senior • Remote

Warsaw, Poland

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.

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Krakow, Poland

5,700 - 6,200 USD

🏢 Summary: Senior Full Stack Developer role focused on building and maintaining high-performance applications using C# and Angular within an agile Scrum team. The position involves developing scalable backend solutions, contributing to cloud-based transformation initiatives, and applying modern design principles and microservices architecture. The role includes full lifecycle development, testing, documentation, and active participation in Scrum ceremonies. 🗂️ Requirements: 5+ years of experience with Microsoft development stack, .NET and C# experience, Strong knowledge of SQL Server and T-SQL, Experience with ASP.NET, Experience with Angular, Experience with HTML, CSS and JavaScript, Experience with Git, Knowledge of SOLID principles, Experience with Microservices architecture, Experience with Azure and .NET Core, Experience working in Scrum methodology, Fluent English communication skills 📃 Skills: C#, .NET, ASP.NET, SQL, T-SQL, Angular, JavaScript, HTML, CSS, Git, Azure, .NETCore, Microservices, SOLID, Jira 🏢 Description: The Customer: Our Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. Our 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible.The Client is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. The Role: This is a great opportunity for an experienced Senior Full Stack Developer to join our super-motivated Software Development team, being part of one of our existing scrum teams. Each agile team includes technical leadership, development, architecture, quality, product and project management roles. We are looking for a Senior Full Stack Developer comfortable with C# and Angular, with a proven history of building high-performance apps. Key Responsibilities: Work on business requests and development improvements Develop, test, document and maintain our application back end build scalable and reusable code Provide realistic estimates for requests, fixes and new ideas Create unit tests Write clear and precise technical documentation Manage realistic work deadlines Participate in all the scrum ceremonies and be part of the team performance and continuous improvement Requirements: 5+ years of experience of Microsoft development stack including; .NET C#, SQL Server T-SQL. Important: ASP.NET, SQL Server, HTML, CSS, Javascript, Angular, Git, excellent verbal and written communication skills in English. Azure, .NET core, SOLID principles, Microservices architecture, Design principles, Angular, Jira. Ideally, you will have experience working with Scrum methodology in a variety of contexts A track record of previous experience, including training, conferences, user groups, and self-study, is desirable. Excellent verbal and written communication skills, in English.