Senior NodeJS Backend Engineer (Context Engineering)

Afori Solutions SLU; Barcelona; Presencial; EUR 55.000 - 75.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive salary and equity in a fast-growing company

Team bonus based on results

Flexible working arrangements

Descripción de la vacante

Afori Solutions SLU is looking for a Senior NodeJS Backend Engineer based in Barcelona to join their fast-scaling startup transforming the insurance industry using AI. As a key team member, you will be building AI agents and scalable backend systems, working with top-tier engineers and industry experts.

Your role includes designing backend systems, optimizing data processes, and collaborating on AI initiatives. The position offers a competitive salary, team bonuses, and equity options in a high-potential startup.

Formación

• 5+ years of experience building backend systems in NodeJS & Typescript.
• Expertise in cloud-native architectures (AWS/Azure).
• Strong experience with RESTful API design and PostgreSQL.

Responsabilidades

• Design, build, and maintain scalable backend systems for AI agent orchestration.
• Optimize APIs and microservices for speed, security, and simplicity.
• Collaborate with AI/ML teams to deploy models into production.

Conocimientos

NodeJS & Typescript

Cloud-native architectures (AWS/Azure)

RESTful API design

PostgreSQL

Kubernetes

AI/ML pipelines

Herramientas

Docker

Terraform

Descripción del empleo

Senior NodeJS Backend Engineer

About Us

Afori is completely changing the way of work in one of the world’s largest industries - insurance. We're an AI-first company with a vision to enable the insurance industry to embrace an agentic world. Afori is an AI platform built specifically for insurance brokers, automating back-office work starting at the inbox and turning unstructured communication into structured, executable workflows. It lives where brokers already work, inside Outlook and WhatsApp, and in a dedicated Afori web app.

Our product is already live and in production with insurance brokers, and we've raised a 12x oversubscribed €4m seed round from General Catalyst alongside high-profile angels. We are an experienced founder team with deep sector understanding, as well as deep understanding of how to scale a startup, having built Insurtech unicorn wefox before. You will get the opportunity to join a fast-scaling startup as one of the first employees and significantly shape the future of the company and the insurance industry.

Your Impact

As a Senior Backend Engineer, 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.

Key Responsibilities

• 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 (embracing our Simplicity value).
• Problem-Solving: Tackle complex challenges in data integration, workflow automation, and system reliability.
• Culture & Collaboration: Champion “radical candor” in code reviews and team discussions to elevate technical quality.
• Customer Alignment: Work business to ensure engineering efforts directly address customer pain points (Customer Centricity in action).

What We’re Looking For

Technical Skills

• 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.

Cultural Fit

• 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.

Why Join Us?

• Collaborate with a small team of top-tier engineers, startup specialists, and industry veterans.
• Embrace AI on daily bases, you will be able to use agentic development tools like claude code, cursor or codex.
• Shape the future of insurance with AI that solves real-world problems.
• Radical candor culture: Your voice matters—no hierarchy, just results.
• Grow with us: Competitive salary and equity stake in a high-potential AI startup.
• Live in Barcelona

Compensation & Benefits

• 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 our Barcelona office, because that's where the momentum, the fast decisions, and the best ideas come from. Plus one day from home and flexibility when you need it.