Senior Fullstack Engineer (AI)

TL;DR

Senior Fullstack Engineer (AI): Building and optimizing a GenAI platform and AI agents for critical decisions in healthcare, legal, tax, and compliance industries with an accent on rapid development, validation, and deployment of AI agents. Focus on applying current LLM patterns (RAG, retrieval, routing, tool-use, evals), building developer tooling, CI/CD, observability, and ensuring security and privacy by design in cloud-native systems.

Location: Remote-first in US or EU, with a required collaboration overlap of 9–11 AM CST. Applicants may be required to appear onsite at a hirify.global office as part of the recruitment process, with hybrid options available near major offices (e.g., Alphen Aan Den Rijn, NLD).

Company

hirify.global is an established company 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 for rapid GenAI agent development, validation, and deployment.
• Build developer tooling, CI/CD, and observability for safe, fast iteration, including evaluations, canaries, and rollout/rollback.
• Apply secure SDLC and privacy-by-design practices such as threat modeling and 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 faster, more reliable AI systems and improve trust/safety metrics.
• Lead by example through writing high-quality, maintainable code that demonstrates engineering craftsmanship.

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 others, including AI Agent development and evaluation, backend/frontend development, cloud services, CI/CD, IaC, SRE, quality engineering, secure SDLC.
• Proven track record delivering secure, reliable, cloud-native systems to production.
• Excellent problem-solving, ownership, and cross-functional communication.
• Work setup: Remote-first in US or EU, with collaboration requiring 9–11 AM CST overlap.
• Ability to appear onsite at a hirify.global office as part of the recruitment process.

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 and iterative testing.
• Experience with LangChain/LangGraph, MCP, vector/RAG systems, or OpenSearch.
• Worked on traditional ML tasks like training, deployment, and monitoring.
• Understanding of how LLMs work, their failure modes, and techniques like fine-tuning and model adaptation.
• Familiarity with regulatory frameworks such as SOC2 or HIPAA.

Culture & Benefits

• Remote-first team within a larger organization, combining stability with startup agility.
• High-autonomy, high-impact role with a "manager of one" mindset.
• Globally distributed team of approximately 100 engineers.
• Authority is earned through demonstrated impact, not tenure or title.
• Occasional travel for team onsites/offsites as needed.

Hiring process

• 15-minute intro screen.
• 2 live coding interviews in your preferred language.
• 1 systems design interview.
• 1 presentation of past work.
• Typically 2–4 weeks timeline.