ELEKS

Senior Full-Stack (.NET + React) Developer, Technical/ Team Lead,

ELEKS · Remote (EU)
Remote (EU) Remote Closed
Applications are closed for this role. It was originally posted 2026-06-02. It’s no longer accepting applicants — see roles ELEKS is still hiring for →, or browse the live openings below.
Type
Full-time
Experience
7+ yr

ELEKS Software Engineering and Development Office is looking for a Senior Full-Stack (.NET + React) Developer, Technical/ Team Lead in Poland, Croatia or EU.
ABOUT PROJECT
Our client is one of the largest British-American insurance brokers globally, specializing in risk management, insurance and reinsurance brokerage, and investment banking solutions.

ABOUT ELEKS

ELEKS is a custom software development company. We deliver value to our clients, thanks to our expertise and experience gained from working as a software innovation partner since 1991.

Our 2000+ professionals located in the Delivery Centers across Eastern Europe and sales offices in Europe and North America, provide our clients with a full range of software engineering services. These include product development, QA, R&D, design, technology consulting and dedicated teams.

  • 7+ years of experience with C#, .NET Core, NET Framework .NET 8 • 3+ years of experience with React and JavaScript • Experience with Azure native microservices architecture & Azure services (key vault, AKS, storage queue, service bus, azure functions, event hub, AKS, App config) • Security protocols: OAuth 2.0 (OKTA) • Experience with containers Kubernetes, Docker • Hands-on experience in building RESTful APIs based on minimal API approach • Good knowledge of CI/CD based on DevOps services, IaC terraform • Hands-on experience in Unit Testing using XUnit / Nunit • Following DDD (Data Driven Design) • Understanding canonical APIs approach • Experience with databases (MS SQL, Redis Cache, Memory Cache) • Understanding API management, Datadog • Experience in regulated or high-scale environments with reliability/SLA ownership • Prior technical leadership (driving standards, architecture decisions, onboarding junior developers) • At least Upper-Intermediate level of English
  • Design, develop, and maintain reliable software in line with technical requirements • Analyze requirements, and independently estimate and set up tasks’ acceptance criteria • Evaluate and coordinate tasks’ deadlines with the Technical Leader or Project Manager • Apply the best software development practices and coding standards to produce high-quality and performant solutions • Stay up-to-date with modern technology and optionally obtain professional certifications • Participate as a trainer or a trainee in various learning programs outside the main project
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