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Senior AI Full Stack Product Engineer (LLM & RAG Systems)

riverflex Netherlands
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AI Summary

Lead the design and development of scalable, AI-driven digital products at Riverflex, focusing on full-stack engineering, LLM integrations, and agentic workflows. You’ll architect and implement cutting-edge solutions using modern frameworks, cloud platforms, and data architectures while mentoring engineers and driving DevOps improvements. Requires 7+ years of full-stack expertise with hands-on experience in agentic systems, MCPs, and cloud deployments.

Key Highlights
Build and scale AI-powered digital products with LLM APIs, RAG systems, and agentic workflows
Lead full-stack development (React, Node.js, Python) with a focus on clean code and mentorship
Work in a hybrid agile environment with global clients, emphasizing user-centric and scalable solutions
Key Responsibilities
Design and develop scalable full-stack applications using React, Node.js, and Python, integrating LLM APIs and RAG systems
Architect and implement agentic workflows and MCP-based integrations to extend LLM capabilities across products
Collaborate with cross-functional teams to shape features from concept to deployment, ensuring user-centric and scalable solutions
Mentor junior engineers, review code, and drive improvements in engineering practices and DevOps workflows
Deploy and maintain cloud-based solutions on Azure, AWS, or GCP, optimizing CI/CD pipelines and infrastructure-as-code
Technical Skills Required
Python JavaScript Cloud Platforms (AWS/Azure/GCP)
Benefits & Perks
25 days paid leave + Christmas/New Year closure
Hybrid work model (2+ days in-office, up to 6 weeks remote abroad annually)
Pension plan, learning & development budget, ClassPass membership, equity share scheme
Nice to Have
Experience with CI/CD pipelines and containerization (Docker, Kubernetes)
Familiarity with AI/ML model integration or data engineering workflows
Passion for mentoring and growing engineering talent

Job Description


Location: Amsterdam (hybrid) (not remote only)

Employment type: full-time (40h/week)

Visa sponsorship: possible


Join us to build future-proof digital solutions

At Riverflex, we believe in creating impactful digital products that are lean, scalable, and human-centred. As an AI Full Stack Product Engineer, you’ll be a core member of our in-house engineering team, helping to develop high-performing software solutions that power business transformation across industries. You’ll work on client-facing products, internal tools, and prototypes that leverage modern web frameworks, cloud platforms, and data-driven architectures.

We’re looking for a curious, proactive engineer who thrives in agile environments and brings a user-first mindset to technical challenges. If you’re passionate about writing clean code, mentoring others, and delivering impact through technology, let’s talk.


The Role

You’ll play a pivotal role in the design, development, and delivery of digital products across the full stack, from front-end user interfaces to back-end systems and cloud services. We’re looking for someone with hands-on experience implementing LLM APIs and developing RAG applications, including work with embeddings and vector search, agentic workflows and MCPs.


Responsibilities

  • Design and develop scalable web applications using modern front-end and back-end technologies (React, Node.js, Python)
  • Take ownership of the full software development lifecycle, including architecture, development, testing, and deployment
  • Design and implement agentic workflows and MCP-based integrations to extend LLM capabilities across products
  • Write clean, well-documented, and testable code following best practices
  • Collaborate with designers, product managers, and clients to shape features from concept to implementation
  • Review code, mentor junior engineers, and contribute to improving engineering practices
  • Integrate third-party APIs and services securely and efficiently
  • Drive continuous delivery and DevOps improvements (CI/CD, cloud infra-as-code, automated testing)
  • Contribute to technical documentation and team knowledge-sharing


Job requirements

Must-Haves

  • 7+ years of professional experience in full-stack development
  • Deep knowledge of modern front-end frameworks (React, Vue) and back-end technologies (Python, Node.js)
  • Hands-on experience building agentic systems and working with MCPs, including tool/function integration, orchestration, and multi-step agent workflows
  • Proficiency with RESTful APIs, GraphQL, microservices, and databases including relational (PostgreSQL), graph, and vector stores, as well as data platforms such as Databricks
  • Experience deploying to cloud environments (preferably Azure, AWS or GCP)
  • Strong understanding of software architecture and design patterns
  • Comfortable working in teams with a strong level of end-to-end independence
  • Strong communication and collaboration skills


Nice-to-Haves

  • Experience with CI/CD pipelines, containerization (Docker, Kubernetes)
  • Familiarity with AI/ML model integration or data engineering workflows
  • Interest in mentoring and growing engineering talent
  • Passion for clean code, testing, and automation


What We Offer

  • 25 days off per year plus closure between Christmas and New Year's.
  • Flexible remote work from abroad options for up to 6 weeks per year.
  • Hybrid setup: at least 2 days a week in-office, remaining days flexible/remote.
  • A pension plan.
  • Learning & Development budget, including full access to our learning platform.
  • ClassPass membership to support well-being.
  • Latest tech & tools, including a home office budget and professional software subscriptions.
  • Equity share scheme to give long-term team members ownership in Riverflex.

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