We’re looking for a Lead .NET Engineer to drive the design of production backend systems built around event-driven and event-sourced architecture, work in an AI-first development process, and lead a small engineering team.
Must-have
8+ years building production systems with C# / .NET, with senior/lead-level ownership
Experience mentoring developers and leading a small team (~3—5 engineers) — code review, technical guidance, and coordinating delivery
Hands-on Event Sourcing and CQRS experience in real-world systems (this is central — expect practical, scenario-based discussion of what you’ve built)
Strong working knowledge of Domain-Driven Design (DDD)
Experience with Vertical Slice Architecture (or similar modular service boundaries)
Solid PostgreSQL experience
Experience with asynchronous messaging and integration patterns, ideally RabbitMQ
Experience containerizing services with Docker
Experience building and operating cloud-hosted applications, ideally AWS
AI-first mentality — practical experience using AI tools to accelerate development (automated workflows, code generation/review, test generation)
Familiarity with agentic AI concepts (autonomous workflows, tool-using agents, orchestration, evaluation/guardrails) and eagerness to apply them daily
Strong ownership mindset — you ship, you improve, you operate, you lead
Upper-Intermediate+ English — confident communication, ability to lead technical discussions in an English-speaking team
Working hours: overlap with US required, till 3 pm EST (10:00 pm Kyiv time).
The team runs an AI-DLC (AI-Driven Development Lifecycle). 2-3 hours a day are spent in collaborative mob sessions, with heavy use of AI tooling for code generation, review, and test creation.
About the client
The enterprise platform helps large organizations across North America run complex, high-volume operations every day: covering the full cycle from planning and data management to production and daily operations. The product is mature and business-critical, with high standards for reliability, data accuracy, and compliance.
