Backend Engineer — AI-Driven Healthcare Platform

Vocca; Paris; On-site; EUR 70,000 - 110,000; Full time

Job summary

Vocca is hiring a Software Engineer to own backend systems, APIs, and modern frontend work. You’ll shape the entire stack end-to-end, collaborating with founders, design, and growth to deliver fast, reliable healthcare AI-powered solutions.

You’ll drive architecture, tooling, and culture, with a focus on scalability, security, and maintainability across multi-client deployments.

Qualifications

• T-shaped engineer with strong backend (APIs, infra, data) and solid frontend fundamentals or frontend expertise with backend interest.
• Ownership mindset from architecture to deployment to monitoring.
• High standards for reliability, not only speed.
• Curiosity about AI, voice, and healthcare to apply skills to meaningful problems.

Responsibilities

• Design healthcare-grade, fast, reliable, and secure systems.
• Scale Vocca’s platform to millions of calls across medical practices.
• Build the foundation for engineering at Vocca, from architecture to tooling and culture.
• Own features end-to-end from spec to production (e.g., scheduling flow, dashboards, voice integration).
• Lead developer tooling and observability improvements and drive a unified product experience across frontend and backend.

Skills

Backend systems

APIs

Frontend development

Architecture

DevOps practices

Job description

Our team shared’s mission is deploy AI agents to transform how patients and doctors connect

We believe healthcare shouldn’t be defined by missed calls, endless waiting lines, and overwhelmed staff. Patients and professionals deserve better.

Vocca builds AI voice agents that answer every call instantly, schedule and reschedule appointments, and free up staff to focus on what matters most: care.

Already trusted by 3500+ providers, we’re transforming the patient–provider relationship, one call at a time.

Want to shape the future of healthcare?

Join us !

• Discover our company culture and values

• Here is a product Demo

• Meet the team

• Article on our seed round of 5,5M$

Your mission

We’re hiring a Software Engineer with a strong background in backend systems, APIs, and modern frontend development. You’ll own our technical stack end-to-end, from core services to user-facing dashboards, working hand-in-hand with the founders, design, and growth.

This is not just about shipping features. It’s about:

• Designing healthcare-grade systems that are fast, reliable, and secure.

• Scaling Vocca’s platform to millions of calls across thousands of medical practices.

• Building the foundation for how engineering is done at Vocca, from architecture to tooling to culture.

You’ll set the bar for quality, velocity, and impact.

Expected outcomes

1 week :

• Get onboarded into our stack

• Ship your first improvements in product or infrastructure.

1 month :

• Take ownership of a feature from spec to production (e.g. new scheduling flow, customer dashboard, or voice integration).

• Propose a technical vision for how our platform should evolve (scalability, reliability, security).

3 months :

• Deliver improvements to developer tooling and observability so the team can move faster with confidence.

• Collaborate with design to create a unified product experience across frontend and backend.

6-12 months :

• Lead the design and rollout of a modular architecture that supports multiple clients with custom rules.

• Put a new AI-powered voice agent into production for a clinic and ensure reliability at scale.

• Establish Vocca’s engineering culture: code reviews, documentation, and technical decision-making principles.

• Start shaping the future engineering team (mentorship, recruitment).

Who you are

This is for you if:

• You’re a T-shaped engineer: strong in backend (APIs, infra, data) with solid frontend fundamentals OR a great UI eye, frontend expertise and interest in backend

• You love full ownership: from architecture to deployment to monitoring.

• You hold your work to exceptionally high standards and care about reliability, not just speed.

• You think simplicity is what makes software scale: you ship fast, but always with maintainability in mind.

• You’re curious about AI, voice, and healthcare, and want to apply your skills to a meaningful problem.

It’s a plus if you:

• Have experience in early-stage startups or B2B SaaS.

• Know cloud platforms, databases, and DevOps practices.

• Have strong opinions on architecture and scalability, but can also execute quickly.

• Have worked on real-time systems, agents, or healthcare products.

How we think about engineering at Vocca

Speed, Quality, and Reliability

We move fast. We prototype and ship often. But because we’re in healthcare, we do it with rigor:

• Our customers love digital solutions but demand quality, reliability, and confidentiality.

• Every line of code must be designed to minimize risk and protect sensitive data.

• We build a modular architecture designed for multi-client environments, with custom rules per medical center.

A True Product-Tech Culture

No silos. Developers work daily with sales, support, and operations to prioritize features that solve real problems on the ground.

This job is a once-in-a-lifetime opportunity to:

• Shape the foundations of engineering at an early-stage startup where tech is the product.

• Have ownership over features, architecture, and tools.

• See your work used by thousands of doctors and millions of patients.

Hiring Process

1️⃣ Screening call with Charles / Pierre our Talent Acquisition Partners (45 min)

2️⃣ Hiring Manager Itw with Pierrick our Head of engineering (45min)

3️⃣ Technical Itw in our office with several members of the technical team(1h30)

4️⃣ C-Level Itw With Hugo Danet our CTO (30min)

5️⃣ Reference check

6️⃣ Offer

We aim to keep the process within 30 days. You’ll receive continuous feedback throughout.

Why should you join Vocca?

• An entrepreneurial adventure, with a supportive, high-energy, execution-focused team

• A product already live, with delighted customers in a fast-growing market (healthcare automation, voice AI)

• A true scaling phase, with everything still to build

• Real responsibilities from day one

We hire people, not roles.

If you're excited about our opportunities but don't check every box, we'd love to hear from you. Everyone, no matter how underrepresented, should feel free to apply as it can only bring learnings or success. If you identify yourself as a woman: Did you know that research shows women often apply only when meeting 100% of requirements?

We'll be thrilled to receive your application!