(Biotechnology), Senior/ Lead Software Developer, JR726, JR725

ELEKS Software Engineering and Development Office is looking for a Senior/Lead .NET Developer in Ukraine, Poland, or Croatia. ABOUT PROJECT The project's main goal is to develop a sub-team to build an advanced biotechnology platform for next-generation patient therapies. The team's focus is on developing workflow validation capabilities that verify process correctness using AI and generate real-time guidance and instructions for operators. REQUIREMENTS 5+ years of experience with .NET / C# Strong understanding of software architecture principles Experience designing distributed systems and microservice architectures Strong knowledge of design patterns and modern development practices Experience with event-driven and asynchronous programming Experience with TDD and automated testing approaches Experience with CI/CD pipelines Strong understanding of Clean Code principles, SOLID, and Dependency Injection Upper-Intermediate or Advanced level of English ADDITIONAL FOR LEAD 8+ years of experience with .NET / C# Proven leadership experience in software engineering teams Ability to drive architectural and technical decisions Strong stakeholder management and communication skills Experience collaborating directly with customer architects and engineering leaders Experience mentoring engineers and conducting technical reviews Ability to refine complex project scopes and define software design approaches Experience implementing AI SDLC practices and understanding AI Native development approaches NICE TO HAVE Functional Programming Akka.NET or Actor Model frameworks Reactive Programming (Rx, Streams) DSL / Fluent Test DSL experience OPC-UA Live Unit Testing Advanced architectural refactoring experience Angular, React, Vue.js or modern JavaScript frameworks RESPONSIBILITIES Lead technical design, architecture, and implementation of the system Drive the technical vision of the solution and define implementation approaches for new capabilities Lead, mentor, and coordinate the development team Take ownership of technical decisions and help define implementation strategy Drive planning sessions and ensure delivery milestones are met Collaborate with Business Analysts to translate business requirements into implementable solutions Create technical specifications, architecture documentation, and implementation plans Conduct architecture reviews, code reviews, and promote engineering best practices Collaborate with stakeholders and engineering teams to identify and mitigate technical risks and dependencies Support feature discovery and work effectively when requirements are still evolving