Affinity

SeniorSoftwareEngineer

€55–85k ~AI est. Barcelona, Spain Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Software Engineer at Affinity. Skills: API development, Integration systems, Access management. Own product areas. Collaborate with engineering teams”

What You'll Achieve.

Deliver measurable customer impact

Industry & Context.

Problems you'll solve

Troubleshooting; Diagnose performance bottlenecks

What They're Looking For.

Must Have

5+ years of experience in software engineering, 2+ years of experience as a senior member of a team delivering end-to-end systems, Worked with a variety of web APIs, Developed backend services using modern OOP practices, Understanding of relational databases, Ability to diagnose performance bottlenecks at the database layer, Comfortable troubleshooting across network, application, caching, queuing, and storage layers, Helped teams solve high-scale challenges, Helped teams integrate systems, Helped teams develop business intelligence platforms, Communicate nuanced ideas clearly, Demonstrate ownership instincts, Sweat the details, Excited to work on a cross-functional team, Partnering with product stakeholders, Partnering with other teams, Partnering with subject matter experts, Proficient in English

What You'll Do.

Collaborate with engineering teams

Collaborate with product teams

Collaborate with design teams

Drive technical best practices for APIs

Drive technical best practices for integrations

Drive technical best practices for IAM systems

Mentor other engineers

How You'll Work.

Team & Collaboration

Cross-functional teams; Product stakeholders; Subject matter experts

Communication Scope

Technical decisions; Brainstorming

Full Job Description

With our growing customer base and our expansion into new markets and use cases, we have more to build than ever at Affinity as we execute on our vision to put relationship intelligence at every professional's fingertips. As a Senior Software Engineer in the Identity Access Management & Integrations Team, you'll have the opportunity to push our product and platform in new directions while also shaping the next iterations of the features our customers already love. You will be one of our first team members in our brand-new Barcelona office. You'll help drive the technical roadmap and implementation of our Internal and External API layers, our 3rd party integration platform and access management systems. We’re looking for a high-velocity engineer who thrives in dynamic environments—someone who can rapidly prototype end-to-end solutions, iterate quickly, and deliver measurable customer impact. From high-performing APIs to backend algorithms, integration frameworks, to guaranteeing data privacy with access management rules, you'll hone your skills across multiple domains while helping to drive forward the Affinity product and vision. Location: Barcelona, Spain For this role, we're embracing a hub-hybrid model, designed to balance flexibility with meaningful in-person collaboration. Team members are expected in-office 2-days per week. We believe great things happen when people come together intentionally to connect, create, and build momentum as a team. In this role, you will: Own product areas that are essential to the success of our customers and our business. Collaborate with world-class engineering, product, and design teams. You'll have the opportunity to learn from a wide variety of experiences and, of course, to share your own. Drive the technical best practices for our APIs, integrations and IAM systems that allow our platform to exceed its performance goals and customers expectations. Mentor other engineers to uplevel them individually and the team as a whole. P

Free ATS check

Applying for this Senior Software Engineer role?

Most applicants get filtered before a human reads their resume. See if yours makes the cut.

How to Apply on Greenhouse

  • Create a Greenhouse profile before applying — it saves time across multiple applications.
  • Upload your resume as a PDF; the parser handles it better than Word.
  • Answer all knockout questions carefully — wrong answers auto-reject before a human sees you.
  • Enable email notifications to track application status in real time.

ANONYMOUS · UNFILTERED

What do employees actually say about Affinity?

Real rants from real employees. Read before you apply.

Read Company Rants →