Lead/Staff Fullstack Engineer (AI)

TL;DR

Lead/Staff Fullstack Engineer (AI): Building and optimizing a GenAI platform and AI agents to power critical decisions in healthcare, legal, tax, and compliance industries with an accent on scalable capabilities for rapid development, validation, and deployment. Focus on designing and shipping full-stack systems, applying current LLM patterns for measurable customer value, and driving architecture and mentoring engineers.

Location: This is a hybrid role, requiring 8 days per month onsite in Alphen Aan Den Rijn, Netherlands.

Company

hirify.global is an established organization building a central GenAI Platform to empower product teams across healthcare, legal, tax, and compliance industries.

What you will do

• Design and implement full-stack applications, AI agents, and platform components that enable rapid GenAI agent development, validation, and deployment.
• Build developer tooling, CI/CD, and observability for safe, fast iteration (evals, canaries, rollout/rollback, cost and quality telemetry).
• Apply secure SDLC and privacy-by-design practices (threat modeling, least privilege).
• Collaborate with product, UX, and domain experts to deliver customer-focused solutions with measurable outcomes.
• Apply current LLM patterns (RAG, retrieval, routing, tool-use, evals) to deliver measurable customer value—faster, more reliable AI systems; reduced time-to-decision; improved trust/safety metrics; and lower cost per query.
• Lead by example and be heavily hands-on: drive architecture, mentor engineers, and take ownership of larger projects.

Requirements

• 5+ years of professional software engineering experience.
• Strong full-stack development skills and cloud experience (AWS/Azure/GCP).
• Expert in at least one, and proficient across the others: AI Agent development and evaluation, Backend development, Frontend development, Cloud services (AWS/Azure/GCP), CI/CD and Infrastructure as Code, Site Reliability Engineering (SRE), Quality engineering / testing strategy, Secure SDLC and privacy by design.
• Proven track record delivering secure, reliable, cloud-native systems to production.
• Excellent problem-solving, ownership, and cross-functional communication.
• Applicants may be required to appear onsite at a hirify.global office as part of the recruitment process.
• Must be able to work 8 days per month onsite in Alphen Aan Den Rijn, Netherlands.

Nice to have

• Proven ability to deliver software products independently or as part of a small, fast-paced team.
• Experience of taking AI agents from concept to production, including safety evaluations, iterative testing (e.g., A/B testing), and continuous improvement.
• Experience with LangChain/LangGraph and MCP; vector/RAG systems; OpenSearch.
• Worked on traditional ML tasks like training, deployment, and monitoring.
• Understand how LLMs work, their failure modes, and techniques like fine-tuning and model adaptation.
• Familiarity with regulatory frameworks such as SOC2, HIPAA, etc.

Culture & Benefits

• Join a remote-first team within a larger organization combining the stability of an established company with the agility of a startup.
• High-autonomy, high-impact role with a "manager of one" mindset where outcomes matter more than optics.
• Globally distributed team of ~100 engineers.
• Report directly to the Director of Engineering, AI Platform.

Hiring process

• 15-minute intro screen.
• 2x live coding in your preferred language.
• 1x systems design.
• 1x presentation of past work.
• Typically 2–4 weeks timeline.
• Interviews must be conducted without the assistance of AI tools or external prompts.