.Net Backend Developer

Job Description

We are looking for an experienced .NET Developer to join our team working on ATS products for the 7N Group. You will play a key role in building and evolving systems that support real recruitment and business processes at scale.This role goes beyond hands‑on development. We’re looking for someone who will act as an AI advocate within the development team — a person who not only believes in the future of AI‑assisted software engineering, but also understands how to use AI tools effectively, responsibly, and pragmatically in day‑to‑day engineering and architectural work.You will help shape how AI is adopted across the team: accelerating development, improving design quality, and raising engineering standards — while keeping human judgment and accountability at the center.TasksUse AI tools to accelerate architecture exploration, prototyping, and boilerplate creationCritically evaluate AI‑generated code, especially for distributed‑systems edge casesOwn architectural decisions and guide system evolutionDesign and evolve modular monoliths and microservices, including event‑driven architecturesBuild reliable integrations with external systems (retries, circuit breakers, versioning)Apply DDD to align system architecture with real business processesDesign secure‑by‑default systems (OAuth2, JWT, managed identities, rate limiting)Ensure production readiness through observability and ownership of incidentsExpectations10+ years of experience building backend and/or distributed systemsStrong architectural mindset with hands‑on engineering experienceFluent++ English, with the ability and willingness to discuss complex technical topicsActively coding with AI tools and confident they represent the future of software engineeringDeep understanding of system reliability, scalability, and failure modesHigh degree of ownership, self‑motivation, and proactivity in solving problemsWe offerConsultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events, both for you (e.g., Admin and Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad.Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors,