We are Merlin Digital Partner
, a leading consultancy specializing in IT and digital talent acquisition with over 10 years of experience. We have helped scale top companies such as
Wallapop, Glovo, Banc Sabadell, and Duracell
, among others.
Focused on
humanizing and streamlining recruitment processes
, our goal is to transform companies by bringing in
top talent
. We stand out for
deeply understanding each partner's reality
, not only their needs but also their essence.
Our partner
is a
fast-growing healthtech company
founded in
Barcelona
and headquartered there, it has
expanded
internationally
across
Europe and USA
.
The Mission:
We are looking for a Full Stack Developer
with a strong backend focus to become part of our Growth Team. In this role, you'll help scale our e-commerce platform, improve core systems, and create internal products that support and accelerate our business operations.
The Role:
E-commerce & Payments: Develop and maintain our ecommerce core services. Integrate and optimize payment providers like Stripe, Klarna, and Alma.
Internal tooling: Build custom internal CRM and "Offers" management tools from scratch using React, Material UI, and React Query.
Frontend evolution: Support and improve multiple frontends for treatment sales and our custom checkout flow.
System architecture:



Work within a microservices environment, ensuring seamless communication between our ecommerce engine and internal systems.
Admin tools: Customize and extend internal admin panels to meet the specific needs of our growth and operations teams.
What we need:
At least
5 years
of experience in software development.
Minimum of
2 years
of experience with
NestJS
(mandatory).
Strong proficiency in
TypeScript
across the entire stack.
Proven experience with
React
.
Solid understanding of PostgreSQL and microservices architecture.
Familiarity with security principles (CORS, OAuth, JWT).
Experience with
MedusaJS
or other headless ecommerce frameworks is a
strong plus
.
Prior background in
E-commerce
(checkouts, payments, order management) is
highly valued
.
Tech Stack:
Backend:
Nest, TypeScript, MedusaJS (Self-hosted).
Frontend:
React, Material UI, Chakra UI (+ Panda), TanStack.
Infrastructure:
PostgreSQL, Microservices.
What we offer:
Collaborative work environment and positive culture.
Free gym and classes.
Benefits and discounts in the company's products.
International and diverse teams.
27 days off per year.
Flexibility in starting and ending your shift.

📌 Full Stack Engineer (Laza)
🏢 Merlin Digital Partner
📍 Laza