Senior Software Engineer

You will join the Expert Retention team, responsible for rewards, incentives, community, communication, and support the systems that keep experts active and engaged on the Arbolus platform.

This is a full-stack product engineering role. You'll work across React, .NET, PostgreSQL, and AWS, building features used daily by our experts. You'll also be expected to understand the business impact of what you build and use data to guide decisions.

We are an AI-forward team. We expect engineers to use tools like Claude, Cursor, Codex, and MCPs as part of their daily workflow to move faster and build better., * Owning features end-to-end: design, implementation, release, and iteration

• Working with Product and Data to turn business goals into shipped solutions
• Using metrics and experiments to improve retention and engagement

This role directly reports to the Engineering Manager and is based in our Barcelona office.

Do you have experience in Research?, Do you have a Bachelor's degree?, We are looking for curious, ambitious people who are excited by the challenge of helping a scale-up transition from a service-led model to a data-focused company.

• Bachelor's degree in Computer Science or equivalent practical experience
• 6+ years of professional backend development experience
• Strong in .NET, PostgreSQL, and React
• Comfortable working with AWS, Docker, and GitHub
• Actively uses AI-powered developer tools in daily work
• Used to owning features in production, not just writing code
• Able to make decisions based on data and business metrics
• Comfortable working in a hybrid, cross-location team

What we offer

• 25 days of paid time off per year + all local bank holidays
• Private health insurance
• 2 hackathons per year
• Flexible remuneration for meals and transport (Coverflex)
• Relocation package to help you with your move to Barcelona
• Top-notch equipment to make our work efficient and smooth
• Free coffee, tea, and snacks to boost our energy during the day
• Last Monday of each month, we provide an office breakfast to start our week, and 2 days a week, office lunch voucher
• Regular social activities are managed by our local Social Committees
• Language courses to extend our knowledge (English, Spanish, Catalan, French, and Italian)
• Office First organization
• Discounts for Kleta, Urban Sports, and various restaurants around the office

Arbolus connects Private Equity Investors and Consultants with subject matter experts across industries for research, enabling seamless knowledge exchange via a digital platform. Since 2018, we've been reinventing the expert network industry with a tech-driven approach, helping clients gain deeper insights while empowering experts to monetize their expertise. More agile and innovative than legacy networks, we stand out with an AI-powered platform, custom-sourced experts, and first-to-market tools like Canopy video Q&A. Headquartered in London, Arbolus is a venture-backed scale-up with over 170 employees across five global offices in Barcelona, New York, and Gurgaon. Recently, we secured a $20 million Series B funding round to fuel our U.S. expansion and advance our mission: to make human knowledge digital and widely accessible.