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# Senior Software Engineer, Fullstack (React/Python)

- **Company:** Merlin Digital Partner
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Automation of Tests, Software as a Service, Software Quality, Databases, Continuous Integration, Relational Databases, DevOps, Amazon DynamoDB, Python (Programming Language), MongoDB, Node.Js, NoSQL, Scrum Methodology, SQL Databases, TypeScript, ReactJS, Reliability of Systems, Backend, Git, Containerization, Kubernetes, Integration Frameworks, Graphql, Front End Software Development, Restful APIs, Software Version Control, Docker
- **Published:** September 19, 2026
- **Apply:** https://www.buscojobs.com.es/senior-software-engineer-fullstack-react-python-en-madrid-ID-370368376

## About the Role

problem-solving mindset
with ownership of technical challenges Excellent
communication and leadership skills , capable of guiding discussions and mentoring Ability to work in
fast-paced environments
such as startups and scale-ups Passion for
innovation

## Description

We areMerlin Digital Partner , aleading IT and digital headhunting companywith over a decade of experience.We have successfully collaborated with industry leaders such asWallapop, Glovo, Banc Sabadell , and more.Our focus is onpeople-centric approaches and optimizing selection processes .Our mission is torevolutionize companies by seamlessly integrating top-tier talent .We excel in understanding each partner's unique needs and capturing their essence.We are currently seeking aSenior Software Engineer, Full Stack (React/Python) .Our partner is a growth & marketing startup specializing in a highly scalable niche.They offer a SaaS platform with automation tools powered by software and AI for businesses.With exponential growth, they are expanding into international markets.The role includes: Designing and leading the implementation of complex full-stack architectures Ensuring seamless integration between frontend and backend, optimizing performance and user experience Taking technical ownership of critical projects and coordinating with other technical leaders Evaluating, selecting, and integrating new technologies, frameworks, and tools to drive innovation Collaborating with multidisciplinary teams (design, product, QA, DevOps) to meet business and technical goals Implementing automated testing strategies (unit, integration, end-to-end) to ensure code quality and system reliability Managing and optimizing containerized environments (Docker, Kubernetes) Must haves: Proven experience infull-stack developmentusingNode.js, Python, React, and TypeScript Strong knowledge ofrelational databases (SQL)andNoSQL databases (MongoDB, DynamoDB, etc.) Experience designing, consuming, and maintainingRESTful APIs and GraphQL Hands-on experience withversion control systems (Git)andcontinuous integration tools Experience withCI/CD pipelinesandagile methodologies (Scrum, Kanban) Soft Skills: Strongproblem-solving mindsetwith ownership of technical challenges Excellentcommunication and leadership skills , capable of guiding discussions and mentoring Ability to work infast-paced environmentssuch as startups and scale-ups Passion forinnovationand exploring new technologies We offer: Attractive packages based on skills and experience Challenging environment with daily opportunities to solve problems A dynamic, high-paced workspace for professional growth and development#J-*****-Ljbffr


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