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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer C# - FLEXIBLE WORKING - **Company:** Oti Group Policy Centre - **Location:** Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, C Sharp (Programming Language), Cloud Computing, Code Review, Databases, Continuous Integration, Django Web Framework, EHealth, Embedded Software, Monitoring of Systems, Python (Programming Language), PostgreSQL, Machine Learning, Message Queuing Telemetry Transport (MQTT), Software Architecture, RabbitMQ, Standard Sql, Software Construction, Software Engineering, Systems Integration, Delivery Pipeline, Firebase, Backend, Git, Fastapi, Event Driven Architecture, Sentry, Apache Kafka, Celery, Front End Software Development, Restful APIs, Serverless Computing, Docker - **Published:** September 14, 2026 - **Apply:** https://eurojobs.com/jobs/27250049/apply ## About the Role 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 . ~ 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 . ~ 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. Experience with event-driven architectures and technologies such as Kafka, RabbitMQ or MQTT . Experience integrating AI or Machine Learning services into production systems. Previous experience in startups, scale-ups or fast-growing technology companies . Work at the intersection of embedded systems, hardware, IoT, cloud, AI and digital health . 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 ## Description Senior Software Engineer (Python) to join their Engineering team and help build the embedded technologies powering the next generation of connected health products. 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. 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 . 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. 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