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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. xqziphu
Competitive compensation

based on experience.

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