Software Engineer II
AffinityBarcelona, Spain
Full Time
Posted March 28, 2026
Not Specified
Visa Sponsored
Apply Now
Application opens on company website
Job Description
A Software Engineer II role focused on building and maintaining backend systems, APIs, and access management integrations for Affinity's relationship intelligence platform, with opportunities to work on both backend and frontend technologies in a collaborative, innovative environment.
Key Responsibilities
- Build and release features in product areas essential to customer success and business growth
- Develop and maintain internal and external API layers, integration platforms, and access management systems
- Follow technical best practices for APIs, integrations, and IAM systems to ensure performance and customer satisfaction
- Collaborate with engineering, product, and design teams to improve the platform
- Contribute to backend development using Ruby, relational databases, and modern web API practices
Requirements
- 3 years of experience as a software engineer, including familiarity with the different pieces of technology involved in building modern web applications
- Experience developing backends in Ruby and relational databases
- Experience with modern front-end technologies such as React and TypeScript, and enjoyment working on the client-side
- Experience with a variety of web APIs and developing backend services using modern Object-Oriented Programming (OOP) practices
- Proficiency in English
Benefits & Perks
Comprehensive health insurance for you and your family
Annual education budget and comprehensive learning & development program
Monthly wellness membership and equipment budget
Ready to Apply?
Join Affinity and make an impact in renewable energy
Stay Updated on Sustainability Jobs
Get the latest renewable energy jobs and career tips delivered to your inbox.
Job Alerts
Get notified about new sustainability jobs
More jobs at Affinity
Senior Software Engineer
Affinity
NEW
VISA
Barcelona
Full Time
9h
Strategic Customer Success Manager
Affinity
New York
Full Time
4d
$158k-198k
Senior Customer Success Manager
Affinity
New York
Full Time
4d
$130k-163k
More jobs in Barcelona, Spain
Senior Software Engineer, AI/ML
Anybotics
Barcelona
Full Time
Dec 29
Senior Backend Engineer
Anybotics
Barcelona
Full Time
Dec 31
Senior Sourcer - Robotics
Anybotics
Barcelona
Full Time
Jan 15