Lead Fullstack Product Software Engineer (AI)

Location: Warsaw, Poland; hybrid with 8 office days per month

Company

hirify.global is a global technology company providing software and information solutions for professional customers, including healthcare.

What you will do

• Design and implement full-stack applications, AI agents, and platform components for GenAI agent development, validation, and deployment.
• Build developer tooling, CI/CD, infrastructure, observability, evaluations, canary releases, rollbacks, and cost and quality telemetry.
• Apply secure SDLC, threat modeling, least privilege, and privacy-by-design practices.
• Use LLM patterns including RAG, retrieval, routing, tool use, and evaluations to improve reliability, trust, safety, latency, and cost.
• Collaborate with product, UX, and domain experts to deliver measurable customer outcomes, including healthcare applications such as UpToDate Expert AI.
• Lead architecture, own larger projects, mentor engineers, and remain hands-on from concept through production.

Requirements

• 5+ years of professional software engineering experience.
• Strong full-stack development and cloud experience with AWS, Azure, or GCP.
• Expertise in at least one and proficiency across the others: AI agent development and evaluation, backend development, frontend development, cloud services, CI/CD and Infrastructure as Code, SRE, quality engineering and testing strategy, and secure SDLC and privacy by design.
• Proven experience delivering secure, reliable, cloud-native systems to production.
• Excellent problem-solving, ownership, and cross-functional communication skills.

Nice to have

• Experience delivering software products independently or in a small, fast-paced team.
• Experience taking AI agents from concept to production, including safety evaluations, iterative testing, A/B testing, and continuous improvement.
• Experience with LangChain, LangGraph, MCP, vector and RAG systems, and 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 organization combining corporate stability with startup agility.
• Work in a high-autonomy, high-impact environment focused on customer outcomes and innovation.
• Hybrid work arrangement with 8 office days per month in Warsaw.
• First-month onboarding includes deep-diving into a platform component and shipping small improvements; afterward, work is aligned with strengths and ambitions.

Hiring process

• Process includes a 15-minute introductory screen, two live-coding sessions, one systems-design interview, and one presentation of past work; the typical timeline is 2–4 weeks.
• Apply with a resume and brief cover letter containing a “Statement of Exceptional Work” describing a project, role, challenges, and measurable impact.
• Do not submit proprietary or confidential information. Interviews must be completed without AI tools or external prompts; applicants may be required to attend onsite at a hirify.global office.