Fullstack Engineer (.NET / React) – AI-Native Spec-Driven Delivery
# Fullstack Engineer (.NET / React) – AI-Native Spec-Driven Delivery **Seargin** · Warszawa, mazowieckie · `On-site` 🕒 **Статус:** *Опубликовано: 13 дней назад* · *Источник: Indeed* --- ### About the Role Location Hybrid – Warsaw Country Poland Form of employment B2B Experience level Senior Apply Responsibilities - Application Architecture - Design simple, predictable, and maintainable application architecture across .NET backend and React frontend - Specification-Driven Development - Translate clear specifications and requirements into working code using AI-assisted development tools - Code Quality & Validation - Review and validate both personal and AI-generated code through testing, edge-case analysis, security checks, and readability reviews - Testing & Coverage - Apply rigorous testing practices and ensure implementation provides reliable coverage against defined requirements - Business Collaboration - Work closely with PMs and BAs to clarify specifications and participate in client workshops and demonstrations - DevOps & QA Collaboration - Collaborate with DevOps on CI/CD and environments and with QA on testing activities and acceptance criteria - Spec-Driven Delivery - Work in short iterations with clear specifications, fast implementation, regular client demos, and predictable progress - Documentation & Handover - Maintain clear documentation and repeatable solutions to support smooth project handover and future development Requirements - Full-Stack Experience - 5+ years of commercial full-stack engineering experience with independent responsibility for project architecture - .NET & C# - Very good knowledge of .NET and C#, including Web API and Entity Framework Core - React & TypeScript - Very good knowledge of React with TypeScript for modern frontend development - AI-Assisted Development - Proven personal workflow for AI-assisted code generation and refactoring with the ability to explain how AI-generated output is validated - Spec-Driven & Test-Driven Development - Hands-on experience with spec-driven or test-driven development and the ability to work from specifications with solid test coverage - Development Best Practices - Good knowledge of REST APIs, relational databases such as SQL Server or PostgreSQL, Git, and CI/CD - Delivery Ownership - Ability to work independently and take full ownership of delivery within a small team and tight timelines - Business Communication - Strong Polish and English communication skills with confidence participating in discussions with enterprise clients What we offer - B2B Contract - Employment based on a B2B contract - Stable and Dynamic International Firm - Opportunity to work in a stable, dynamically developing international company - Engaging Projects and Latest IT - Chance to participate in interesting projects and work with the latest information technologies - Competitive Rates - Attractive remuneration rates offeres - Renowned International Projects - Involvement in the most prestigious international project - MultiSport and Private Medical Care - MultiSport and Private Medical Care Nice to have - Enterprise Client Experience - Experience working directly with enterprise clients or in a Forward Deployed Engineer-type role - Data Modelling - Understanding of data modelling for reporting and collaboration with Power BI teams - Cloud Platforms - Experience with Azure, including App Service and Azure SQL, or another cloud platform - Consulting Environment - Experience working in a consulting or project-based environment Apply & join the team Didn’t find anything for yourself? Send your CV to praca@seargin.com
Наблюдалась 2026-10-07, впервые 2026-09-23, источник — Indeed.