Senior Software Engineer (LLM)

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

Founded in the Netherlands over 180 years ago, the customer is a global leader in information services and expert solutions for professionals in the health, tax and accounting, risk and compliance, finance, and legal sectors. As of 2017, the company was recognized by Corporate Knights as one of the 100 most sustainable companies in the world. The company currently operates in over 150 countries.

Join a team building a comprehensive AI technology stack (focused on GenAI) that accelerates AI capabilities across hundreds of customer products. The platform integrates with major AI providers and enables scalable, production-ready AI solutions for professional users.

The team is divided into core development and product integration streams.

What You’ll 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

What You Bring

• 8+ years of professional software engineering experience
• Strong full-stack development skills and cloud experience (AWS, Azure, or 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
• US Central Time overlap (9–11 AM CDT).

Nice to have

• Proven ability to deliver software products independently or as part of a small, fast-paced team
• Experience taking AI agents from concept to production, including safety evaluations, iterative testing (e.g., A/B testing), and continuous improvement
• Experience with LangChain, LangGraph, MCP; vector/RAG systems; OpenSearch
• Experience with traditional ML tasks such as training, deployment, and monitoring
• Understanding of how LLMs work, their failure modes, and techniques such as fine-tuning and model adaptation
• Familiarity with regulatory frameworks such as SOC 2, HIPAA, etc.

English level

Upper-Intermediate

Legal & Hiring Information

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement
• Well-being program
• Team events & local benefits
• Sports compensation
• Referral bonuses
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.