Senior Full Stack Engineer (.NET / Angular)

Quick Facts

• Role: Senior Full Stack Engineer (.NET / Angular)

• Focus: Enterprise systems across backend, data, and UI

Description

Design and build a full-stack enterprise system by turning requirements into technical designs and prototypes. Lead developers and define engineering standards while maintaining performance, security, and code quality across releases and deployments. Support requirements analysis, testing/QA, change management, technical documentation, and 2nd/3rd line support.

Responsibilities

• Design and build the system; convert requirements into technical designs

• Propose solutions to business and technical problems; prototype

• Lead developers, define engineering standards, estimate effort and timelines

• Monitor performance, security, and code quality metrics

• Handle configuration and release management; support deployments

• Participate in requirements analysis, testing, QA, and change management; build testing tools when needed

• Write and maintain technical documentation

• Provide 2nd/3rd line support

Requirements

• At least one end-to-end solution (analysis → release → operation)

• Deep experience across data, business logic, and UI layers

• UML experience as a design tool

• Scrum experience; ability to lead a technical team

• Clear, practical technical writing

• Methodical, problem-solving mindset

• Bachelor’s degree or equivalent (EQF 6)

• 6+ years in IT; at least 3 years in a senior full stack/lead role

• EU citizenship

• English B2+ with a certificate

• Readiness for Confidential-level security clearance (process begins within 45 days)

• Experience with microservices and/or micro frontends

• Strong grasp of design patterns (OO and functional)

• Backend: .NET/C#; Node.js with NestJS (or similar) for BFF layers

• Frontend: Angular, TypeScript, RxJS, NgRx, CSS/SCSS

• Data: MS SQL Server and at least one NoSQL store

• GraphQL knowledge

• Unit and automated testing in daily workflow

• CI/CD (e.g., Azure DevOps) and containerized environments (e.g., OpenShift)

• Advanced certification in your technology area or recognized equivalent (client decides acceptance)

Benefits

• Long-term B2B contract

• Mostly remote; up to 12 days per quarter in the Warsaw office

• 140 PLN/h net + VAT

• Medical care and sports card co-financing

• Training budget

• Work alongside experienced international engineers