3mo ago
New

Senior NodeJS Backend Engineer (Context Engineering)

SpainSpain·Barcelonafull-timesenior
EngineeringBackend Developer
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Quick Summary

Key Responsibilities

System Architecture: Design, build, and maintain scalable backend systems for AI agent orchestration and real-time data processing.

Technical Tools
EngineeringBackend Developer
Help change one of the largest global industries: insurance brokerage.

Afori's vision is to ensure every human has the right cover at the right time. Our founders previously built insurance unicorn wefox and are now building the AI layer for insurance brokers: agents that plug directly into brokers' daily workflows and take over the back-office work that eats more than 60% of their time. We already save brokers over 2.5 hours a day, freeing them up to do what actually grows the business: advising customers well.

The opportunity is massive: the global protection gap is €1.3 trillion, and insurance distribution still runs on manual processes. Sequoia recently mapped AI-native services opportunities and ranked insurance brokerage first, a $140-200B market. We raised a €4M pre-seed led by General Catalyst, backed by investors and operators including Mustafa Suleyman (CEO, Microsoft AI) and Alex Rinke (Co-CEO, Celonis)

We want someone who has already built a product from nothing and stayed to run it in production. An ex-founder, a former CTO, or a lead engineer. You've made the important calls with no one above you to catch your mistakes.

Now you want to build again. Not run a company, not manage a team, just point everything you've learned at a hard problem. Ours is the AI agents at the core of the product. It's the hardest problem we have, and we want you to own it.

You'd work next to the founders, with the freedom to decide how things get built. This is a hands-on job on purpose. The most useful thing you can do here is write code.

You'll build AI agents that feed our context layer. At Afori, we want to deeply understand our customers and the risks they're exposed to by extracting and synthesizing structured and unstructured data points from multiple channels. You'll design new methodologies for data extraction and context engineering so our agents can advise and serve our customers in the best possible way.

Responsibilities

~1 min read
  • →System Architecture: Design, build, and maintain scalable backend systems for AI agent orchestration and real-time data processing.
  • →Build AI agents: Take full ownership in building new AI agents that take over backoffice work on behalf of the broker  
  • →AI/ML Collaboration: Partner with AI/ML teams to deploy models into production (e.g., customer insights, task automation).
  • →Performance Optimization: Optimize APIs and microservices for speed, security, and simplicity.
  • →Problem-Solving: Tackle complex challenges in data integration, workflow automation, and system reliability.
  • →Collaboration: Being honest in code reviews and design talks, and keeping the bar high.
  • →Customer focus: Working with the business side so what you build actually solves what brokers struggle with.

  • 5+ years building backend systems in NodeJS & Typescript.
  • Expertise in cloud-native architectures (AWS/Azure) & Docker.
  • Strong experience with RAG creation & management, context engineering and agentic memory creation 
  • Strong RESTful API design experience.
  • Proficiency with relational (PostgreSQL) and distributed systems.
  • Experience in Kubernetes & Infrastructure and infrastructure-as-code (Terraform) is a plus.
  • Experience with AI/ML pipelines (model deployment, MLOps) is a strong plus.
  • Familiarity building with LLMs / agentic workflows would be a plus.

  • You thrive in a high-performance team that moves fast and appreciates data.
  • You’re hands-on: You do not stop until 100% of the task is delivered 
  • You embody “there’s always a solution”. No task is too ambiguous.

What We Offer

~1 min read
✓Collaborate with a small team of top-tier engineers, startup specialists, and industry veterans
✓Use AI every day. You'll build with tools like Claude Code, Cursor, and Codex.
✓Shape the future of insurance with AI that solves real-world problems.
✓Say what you think. There's no hierarchy here, just results.
✓Grow with us: Competitive salary and equity stake in a high-potential AI startup.
✓Live in Barcelona ☀️☀️☀️
✓Base Salary: Competitive, based on experience.
✓Team bonus: Based on achieving team results.
✓Equity: Stock options in a fast-growing company.
✓Team Work: Four days a week together in the Barcelona office, because that's where the momentum and the fast decisions come from. One day from home, and flexibility when you need it.

Location & Eligibility

Where is the job
Barcelona, Spain
On-site at the office
Who can apply
ES

Listing Details

Posted
June 25, 2026
First seen
September 26, 2026
Last seen
September 28, 2026

Posting Health

Days active
1
Repost count
0
Trust Level
19%
Scored at
September 28, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
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Senior NodeJS Backend Engineer (Context Engineering)