Senior Software Engineer
AffinityBarcelona, Spain
Full Time
Posted February 5, 2026
Not Specified
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Job Description
A Senior Software Engineer in the Identity Access Management Integrations Team responsible for developing and maintaining APIs, integration platforms, and access management systems to enhance the company's relationship intelligence platform, with a focus on backend development and cross-functional collaboration.
Key Responsibilities
- Drive the technical roadmap and implementation of API layers, integration platform, and access management systems
- Own and maintain product areas critical to customer success and business goals
- Collaborate with engineering, product, and design teams to develop solutions
- Establish and promote best practices for APIs, integrations, and IAM systems to ensure performance and scalability
- Mentor and support the growth of other engineers
- Ensure operational excellence with a focus on reliability, performance, and scalability
Requirements
- 7 years of experience in software engineering, with at least 2 years of experience as a senior member of a team delivering end-to-end systems
- Experience working with a variety of web APIs and developing backend services using modern Object-Oriented Programming (OOP) practices
- Strong understanding of relational databases and the ability to diagnose performance bottlenecks at the database layer
- Experience troubleshooting across network, application, caching, queuing, and storage layers
- Experience helping teams solve high-scale challenges, integrate systems, or develop business intelligence platforms
- Excellent communication skills with the ability to explain technical decisions clearly, whether in writing or in real-time discussions
- Demonstrated strong ownership instincts and attention to detail
- Proficiency in English
- Experience with backend development using Ruby on Rails, PostgreSQL, and Redis
- Experience with frontend development initiatives using Typescript and React (preferred but not mandatory)
- Experience working with infrastructure hosted on AWS and running on Kubernetes
Benefits & Perks
Comprehensive health insurance for you and your family
Annual education budget and a comprehensive learning and development program
Monthly budget for wellness memberships and equipment
Ready to Apply?
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