Senior Fullstack AI Engineer (React, C#)

Experteer Overview As a Senior Software Engineer in the Web Shell platform, you design and build scalable .NET services and React frontends that power a large-scale web application. You will shape frontend architecture, build tooling, and AI-powered experiences embedded at the core, delivering production features in a microservices environment. You collaborate with product teams across EMEA to refine requirements and guide architectural decisions. This role offers impact on performance, reliability, and cost through AI-assisted engineering in a cross-functional setting. Compensation / Benefits * Design and build scalable .NET services and React frontends across Web Shell, Agentic Ecosystem, and Endpoint Observability domains * Build event, telemetry, and audit pipelines at enterprise scale * Expose platform capabilities to Tia and third-party agents via MCP tools, typed APIs, and tenancy-aware authorization * Deliver production features in a microservices codebase using AI coding agents, contract tests, schema validation, and integration coverage * Debug distributed, partly model-driven systems and implement tracing for non-deterministic behavior * Maintain service-layer context for agents, including API contracts, domain vocabulary, architectural decision records, and repository instructions * Own performance, scalability, reliability, and AI-assisted cost profiles for the services shipped * Partner with product management and EMEA anchor teams to refine requirements and shape architectural decisions Tasks * 8+ years of production software engineering experience * Strong C#/.NET expertise and solid React skills * Deep expertise in distributed systems and microservices * Experience with SQL databases, NoSQL stores, cloud platforms, containers, and event-driven/streaming architectures * Regular use of AI coding agents in production codebases with focus on correctness, security, maintainability * Ability to expose capabilities to AI systems via tool interfaces, MCP servers, or similar patterns * Understanding of AI model failure modes and mitigation strategies * Strong English communication and collaboration across EMEA, interest in AI-native engineering practices Key requirements * competitive compensation and bonuses * flexible PTO and paid holidays * 401(k) with employer matching * comprehensive Health insurance package including 100% employer-paid medical coverage * Up to 12 weeks of Parental Leave * Basic Life Insurance, Short-Term & Long-Term Disability, 100% employer-paid

offers contract tests, schema validation, and integration coverage * Debug distributed, partly model-driven systems and implement tracing for non-deterministic behavior * Maintain service-layer context for agents, including API contracts, domain vocabulary, architectural decision records, and repository instructions * Own performance, scalability, reliability, and AI-assisted cost profiles for the services shipped * Partner with product management and EMEA anchor teams to refine requirements and shape architectural decisions Tasks * 8+ years of production software engineering experience * Strong C#/.NET expertise and solid React skills * Deep expertise in distributed systems and microservices * Experience with SQL databases, NoSQL stores, cloud platforms, containers, and event-driven/streaming architectures * Regular use of AI coding agents in production codebases with focus on correctness, security, maintainability * Ability to expose capabilities to AI systems via tool interfaces, MCP aa expose or similar patterns * Understanding of AI model failure modes and mitigation strategies * Strong English communication and collaboration across EMEA, interest in AI-native engineering practices Key requirements * competitive compensation and bonuses * flexible PTO and paid holidays * 401(k) with employer matching * comprehensive Health insurance package including 100% employer-paid medical coverage * Up to 12 weeks of Parental Leave * Basic Life Insurance, Short-Term & Long-Term Disability, 100% employer-paid