Senior Fullstack Engineer (AI)

Location: Warsaw, Poland; applicants may be required to appear onsite at a hirify.global office during the recruitment process.

Company

hirify.global is a global technology company providing software and information solutions for professional and critical industries.

What you will do

• Design and implement full-stack applications, AI agents, and platform components for rapid GenAI agent development, validation, and deployment.
• Build developer tooling, CI/CD, observability, evaluations, canary releases, rollbacks, and cost and quality telemetry.
• Apply secure SDLC and privacy-by-design practices, including threat modeling and least privilege.
• Use LLM patterns such as RAG, retrieval, routing, tool use, and evaluations to improve reliability, safety, latency, and cost per query.
• Collaborate with product, UX, and domain experts to deliver measurable customer outcomes.
• Write high-quality, maintainable code and take solutions from concept to production.

Requirements

• 5+ years of professional software engineering experience.
• Strong full-stack development skills and experience with at least one major cloud platform: AWS, Azure, or GCP.
• Expertise in at least one of AI agent development and evaluation, backend or frontend development, cloud services, CI/CD and infrastructure as code, SRE, quality engineering, or secure SDLC.
• Proven experience delivering secure, reliable, cloud-native systems to production.
• Strong problem-solving, ownership, and cross-functional communication skills.
• Role location: Warsaw, Poland.

Nice to have

• Experience taking AI agents from concept to production, including safety evaluations, A/B testing, and continuous improvement.
• Experience with LangChain, LangGraph, MCP, vector and RAG systems, or OpenSearch.
• Experience with traditional ML training, deployment, and monitoring.
• Understanding of LLM operation, failure modes, fine-tuning, and model adaptation.
• Familiarity with SOC 2, HIPAA, or similar regulatory frameworks.

Culture & Benefits

• Join a 100-engineer team within an established global organization with startup-like agility.
• Work in a high-autonomy, high-impact environment.
• Contribute to a central GenAI platform used by hundreds of product teams.
• Focus on inclusive collaboration, professional growth, and engineering craftsmanship.

Hiring process

• 15-minute introductory screen.
• Two live coding interviews, one systems design interview, and one presentation of past work.
• The process typically takes 2–4 weeks; applications should include a resume and a cover letter with a Statement of Exceptional Work.