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Merlin Digital Partner ! A
leading IT and Digital headhunting company
who stands out from the crowd, boasting over a decade of experience. We've
successfully collaborated and played a pivotal role in the growth of industry heavyweights
such as Wallapop, Glovo, Banc Sabadell, and Duracell, among others.
Our
emphasis lies in people-centric approaches and optimizing the selection processes . Our
mission is to revolutionize companies by seamlessly integrating top-tier talent . What sets us apart is our
in-depth understanding of each partner
(being their best influencer!), addressing not only their needs but also capturing their essence.
Our partner
is a fast-growing
HealthTech company
developing connected technologies at the intersection of
hardware, embedded systems, IoT, AI and digital health . Their technology transforms everyday environments into intelligent health platforms, enabling seamless and continuous health monitoring.
We are currently looking for a
Senior Software Engineer (Python)
to join their Engineering team and help build the embedded technologies powering the next generation of connected health products.
Mission:
As a
Senior Software Engineer , your mission will be to design and develop the
backend systems, cloud infrastructure and APIs
powering the company's connected technologies.
You will have a key role in building
scalable, reliable and secure software
that connects devices, AI-driven services and customer-facing applications.
Working closely with
Product, AI, Embedded and Frontend teams , you will take ownership of solutions from architecture and implementation through deployment and production, helping define the technical foundations of the platform as the company scales.
The Role:
You will be responsible for:
Designing, developing and maintaining
scalable backend services , primarily using
Python .
Building and evolving
REST APIs
powering web, mobile and IoT applications.




Designing and optimizing
databases, data models and system integrations .
Developing
cloud-native services
with a strong focus on reliability, performance and scalability.
Contributing to
cloud infrastructure, deployment pipelines and system monitoring .
Improving platform
performance, observability and security .
Troubleshooting production issues and continuously improving
system reliability .
Collaborating closely with
Product, AI, Embedded and Frontend teams
to design and deliver new product capabilities.
Participating in
software architecture and technical design decisions .
Building clean, maintainable and well-tested software following strong engineering practices.
Improving
development workflows, CI/CD pipelines and code quality .
Providing technical guidance and mentoring other engineers through
code reviews and knowledge sharing .
Continuously evaluating new technologies, tools and engineering best practices.
What we need:
5+ years of professional backend software engineering experience . More extensive senior-level experience will be highly valued.
Strong professional development experience with
Python .
Experience working with modern Python backend frameworks such as
FastAPI, Django or similar .
Solid experience designing, developing and maintaining
REST APIs .
Experience designing
scalable software architectures
and contributing to architectural decisions.
Strong knowledge of
SQL and PostgreSQL , including database and data model design.
Experience working with
Firebase .
Experience deploying and operating applications on
cloud platforms such as GCP, Hetzner or similar .
Hands-on experience with
Docker, Git and CI/CD pipelines .
Experience with
monitoring,



observability and background processing tools , such as
Sentry, Celery or similar .
Strong understanding of software engineering best practices, including
testing, maintainability, code reviews and clean software design .
Excellent
debugging, analytical and problem-solving skills .
Ability to take ownership of technical solutions
from design and architecture through deployment and production .
Professional English level .
Disponibilidad para acudir a oficinas 4-3 días a la semana.
Nice to Have
Experience with
event-driven architectures
and technologies such as
Kafka, RabbitMQ or MQTT .
Experience with
Infrastructure as Code (IaC) .
Previous experience working with
IoT or connected devices .
Experience integrating
AI or Machine Learning services
into production systems.
Experience building or operating
distributed systems .
Previous experience in
startups, scale-ups or fast-growing technology companies .
A product-oriented mindset and the ability to comfortably collaborate across different engineering disciplines.
What we offer:
Join a
fast-growing HealthTech company
building a new generation of intelligent, connected health technologies.
Work at the intersection of
embedded systems, hardware, IoT, cloud, AI and digital health .
Build technologies powering products already used by
leading sports organizations and enterprise customers worldwide .
Take ownership of
high-impact projects , from embedded software development through system integration and production.
Collaborate with a talented multidisciplinary team across
Hardware, Backend, AI, Data and Product .
Have a
visible impact on technical and architectural decisions
as the platform and engineering organization continue to evolve.
Work in a fast-paced environment with a high level of
autonomy and ownership .
Strong opportunities for
professional growth and technical leadership
as the company scales internationally. xqbhyrx
Competitive compensation
based on experience.

📌 Senior Software Engineer (Barcelona)
🏢 Merlin Digital Partner
📍 Barcelona