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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. xhfqzwm
Competitive compensation
based on experience.

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