Mid .NET Full Stack Developer

September 24, 2026

Remote

Middle

Warsaw, Poland

Important before applying

This job has conditions that may affect your decision to apply

English is required · C1 level

Description

A Mid Full Stack Core Developer with approximately 5 years of hands‑on professional experience is sought to join the development team. The role focuses on designing, developing and maintaining enterprise‑level software systems, reusable frameworks, shared services and core platform components. It combines strong C#/.NET backend expertise with practical Angular frontend experience. The developer works closely with Development Leads, Senior Core Developers, Business Analysts and domain teams within an Agile/Scrum software development lifecycle.

Responsibilities

Develop and maintain reusable frameworks, packages, shared services and core platform components
Design and develop applications, services and APIs using C#/.NET
Design and build modern applications and micro‑frontends with Angular
Develop and maintain .NET microservices and, where appropriate, BFFs using Node.js/NestJS
Own assigned Core user stories, including technical approach, refinement, scope clarification and dependency identification
Participate in shared APIs, integrations, micro‑frontend foundations and automated testing
Maintain updates of frameworks, runtimes and dependencies
Troubleshoot issues related to shared components, services and applications
Participate in requirements analysis, testing, quality assurance, change management and deployment
Prepare and maintain technical documentation, specifications, README files and coding standards
Provide 2nd and 3rd line technical support and knowledge transfer within the team
Participate in code reviews and promote best development practices
Work independently while also supporting junior developers

Requirements

Approximately 5 years of hands‑on professional experience
Object‑oriented software development, preferably in a Windows environment
Minimum 8 years of combined education and professional experience
Level 6 degree in Computer Science, Software Engineering, IT or a related field
English at C1 level (CEFR)
Experience across the full software development lifecycle (SDLC): analysis, design, development, testing, deployment and support
Hands‑on experience with Microsoft Visual Studio
Experience with IIS and/or Nginx, bug‑tracking and version‑control systems
Experience with relational databases, preferably PostgreSQL and/or Microsoft SQL Server
Experience working in Agile/Scrum
Strong experience developing components, services, applications and enterprise solutions
Strong knowledge of designing and developing enterprise systems using .NET technologies
Good knowledge of database design, XML, authentication and authorization
Strong understanding of object‑oriented programming and software design principles
Ability to work independently and mentor junior developers
Ability to prepare technical specifications, conceptual documents and documentation
Strong communication skills and ability to interact with technical and business stakeholders
Strong backend expertise in C#/.NET
Hands‑on frontend experience with Angular
Experience with Node.js/NestJS

Conditions

Remote work format
Monthly gross compensation of 1900–2300
Private medical insurance
Unlimited access to wellness platform and on‑site support
Opportunities for continuous learning and career growth
Work on large‑scale core banking systems using modern technologies

.NETC#AngularNode.js/NestJSMicroservicesMicro-frontendsPostgreSQLMicrosoft SQL ServerMicrosoft Visual StudioIISNginxXMLAgile/ScrumSDLCOOPbanking / core banking systems

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