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. 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

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

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