About the company

Biorce is a pioneering Healthtech company dedicated to revolutionizing drug development through the power of AI. We are passionate about accelerating medical advancements and improving patient outcomes.

Our team comprises seasoned clinical research professionals, data scientists, and AI experts, working collaboratively to bridge the gap between cutting-edge technology and real-world clinical needs.

With an unwavering commitment to revolutionize healthcare, we envision a world where all patients benefit from accelerated and cost-effective access to treatments. Biorce is poised to redefine the landscape of healthcare, shaping a future where innovation and accessibility converge for the betterment of humanity.

About the role

Following our successful expansion into the U.S. and continued growth across Europe, we are seeking a Senior Backend Developer (Delta Team) to help drive our Operations function from our Barcelona hub.

This person will play a critical role in building Biorce’s internal software infrastructure, starting with our CRM Leadro. Leadro is Biorce's in-house AI-native CRM and the system of record for our commercial engine: LLM-driven workflows, data orchestration across our GTM stack, and deep third-party integrations. You'll own backend systems end to end and shape the architecture as we scale.

Who We’re Looking For

The idóneo candidate has 6+ years in software development and architecture, with real ownership of production systems. Someone with a track record of taking ambiguous problems from design through documentation to delivery,



and experience mentoring engineers and driving technical decisions. This person should be able to own backend systems end to end and help the team deliver fast without breaking things.

Key Responsibilities

Design, build, and own Leadro's core backend services, from data models to APIs

Build and maintain deep third-party integrations across our GTM stack

Ship LLM-powered features: agentic workflows, enrichment pipelines, and intelligent automation

Set technical direction for the backend, lead design reviews, and raise the bar on code quality through rigorous code review and clean code practices

Mentor engineers and help the team deliver fast without breaking things

Must-haves

6+ years in software development and architecture, with real ownership of production systems A track record of taking ambiguous problems from design through documentation to delivery

Experience mentoring engineers and driving technical decisions

CS degree or equivalent practical experience

Expert-level Node.js and TypeScript in production backend systems, including NestJS

Strong data architecture skills: complex data modeling, relational databases (PostgreSQL, MySQL), and warehouses like BigQuery





API design and development (REST, GraphQL), including building and maintaining third-party integrations

Hands-on experience shipping LLM-based workflows or agentic systems

Modern engineering practices: code review culture, clean code principles, CI/CD, Docker and Docker Compose, and automated testing

Experience with major cloud providers (GCP, AWS, Azure) — GCP is our primary platform

Proficiency with tools like Confluence and Jira

Nice-to-Haves

Distributed and event-driven patterns: Redis, RabbitMQ, Kubernetes, serverless

Authentication, authorization, and identity management (OAuth, SSO, RBAC)

Python

Experience with React, HTML/CSS, Bootstrap is a plus.

Prior work on data-heavy SaaS (CRM, RevOps, or analytics tooling)

Why Join Us?

A dynamic work environment with an international team, where collaboration and diversity thrive.

Work alongside top talent, united by a shared purpose and committed to making a real impact.

Get equipped with a MacBook to enhance your productivity and work experience.

Benefits package designed to support you and your family’s overall well-being.

Comprehensive medical, dental, and vision insurance options beginning on the first of the month following hire.

Hybrid work model offering flexibility to balance your professional and personal life.

Company events to celebrate achievements and enjoy time together.

Our office is pet-friendly! You’ll likely be greeted by a few wagging tails upon arrival.

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📌 Senior Backend Developer (Delta Team) - Barcelona (Madrid)
🏢 Biorce
📍 Madrid