We are 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 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. Competitive compensation based on
experience.

📌 Senior Software Engineer (Python) (Cataluña)
🏢 Merlin Digital Partner
📍 Cataluña