Langate is an award-winning provider of web development services in 3 main categories: business, healthcare, and education. At Langate, we’re passionate about crafting digital solutions that make a real impact. We take immense pride in our strong collaboration with the U.S. We’re here to shape the future of technology, one milestone at a time. In addition to technical expertise, we value strong communication, autonomy, and a high level of business orientation. This role requires close collaboration with stakeholders, proactive requirement discovery, and the ability to work effectively in a fast-changing environment without waiting for fully documented inputs. To thrive in this role, we’re seeking candidates with 2–3+ years of commercial engineering experience, hands-on experience building AI agent solutions, strong Python and/or TypeScript fundamentals, and the ability to design custom tool-using agent loops from scratch. Experience with agent frameworks, evaluation systems, and observability tooling will be a strong advantage.
About the project : The project is focused on building production-grade AI agent capabilities for the U.S. healthcare domain. The engineer will work on agentic product features, legacy-system integrations, and supporting components such as scrapers and tool layers, helping automate complex workflows in an environment with significant real-world business impact.
Requirements: * 2–3+ years of commercial engineering experience * Ability to build a tool-using agent loop from scratch, including tool calling, structured outputs, stop reasons, parallel tool use, and error recovery * Strong understanding of context engineering, including what to write, select, compress, and isolate * Hands-on experience with modern agent frameworks or SDKs such as LangGraph, Claude Agent SDK, OpenAI Agents SDK, or Pydantic AI * Working knowledge of Model Context Protocol (MCP) * Experience building or extending evaluation harnesses, solid Python and/or TypeScript skills, and Upper-Intermediate English
Responsibilities: * Design and implement agentic features end-to-end, from prototype to production. * Build and maintain agent loops, tool layers, context management, persistence, sub-agent orchestration, observability, and safety hooks. * Define quality standards for agent performance by creating golden datasets, writing evaluations, and setting up regression checks. * Instrument agents with proper tracing and telemetry, and investigate production behavior using real execution traces. * Work directly with client stakeholders to elicit and refine requirements, translate them into technical scope, and align on expected outcomes. * Make pragmatic build-versus-import decisions when selecting frameworks, tools, and external components. * Participate in architecture discussions and code reviews, contributing to scalable and production-ready engineering decisions. * Move between projects and priorities as needed, taking ownership of delivery in a fast-changing environment with a high degree of autonomy.
Schedule: 5/2, 8-hour working day (40 hr per week), flexible schedule.
Hiring process: HR interview + tech specialists
We offer: * Competitive compensation * B2B contract, paid sick leave, 20 days of paid vacation * Free English lessons * Flexible work schedule * Official Ukrainian holidays are non-working days * Paid courses and certifications * Сoach / psychologist consultation * Workshops * Career development plan * Mentoring Education * Medical Health Insurance
Why Choose Us? What Do We Offer that’s Exceptional? * Cutting-Edge Technologies on Real Projects: At Langate, you’ll work with the latest technologies on live projects. We’re a dynamic, fast-growing company, so you’ll find a minimal amount of legacy systems and plenty of opportunities to implement new technologies. * Work-Life Balance with Benefits: We value work-life balance and offer paid time off, including vacation days and sick leave. Remote work options and hearty life are part of the package too. * Investment in Your Growth: We’re committed to your professional development. You can expect training programs, courses, and opportunities to enhance your English language skills. * Team Building and Unity: We know that a happy team is a productive team. That’s why we organize team-building events and group activities to foster strong bonds and a sense of belonging.
When you choose us, you’re choosing a company that values innovation, invests in its employees, and provides a supportive and engaging work environment. Join us in shaping the future of technology!
