Senior Software Engineer

Arbolus Spain; Madrid; Híbrido; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A tech-driven expert network company is seeking a seasoned backend developer to join their team in Madrid. The role involves developing solutions using .NET, PostgreSQL, and React, along with utilizing AI tools to enhance productivity. Applicants should have a Bachelor's degree in Computer Science and at least 6 years of backend development experience. The company offers hybrid working conditions, generous paid time off, health insurance, and other benefits to support a balanced work-life environment.

Servicios

25 days of paid time off

Private health insurance

Flexible remuneration for meals and transport

Relocation package

Top-notch equipment

Free coffee, tea, and snacks

Office breakfast and lunch vouchers

Language courses

Discounts for various services

Formación

• 6+ years of professional backend development experience.
• Able to make decisions based on data and business metrics.
• Comfortable working in a hybrid, cross-location team.

Responsabilidades

• 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.

Conocimientos

Strong in .NET

Proficient in PostgreSQL

Experience in React

Comfortable working with AWS

Familiar with Docker

Experience with GitHub

Uses AI-powered developer tools

Educación

Bachelor's degree in Computer Science or equivalent

Descripción del empleo

About Arbolus

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.

About the role

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.

Key responsibilities

• 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.

Requirements to succeed in this role

• 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

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Arbolus is committed to providing reasonable adjustments for qualified individuals with disabilities, in our job application and / or interview process. If, due to a disability, you need assistance or adjustment in completing your application please email us at [e-mail]. Please put "Reasonable Adjustment" in the subject line and provide a brief description of the type of assistance you need. Please note that this inbox is not monitored for application status update requests.

We are unable to sponsor or take over sponsorship of an employment Visa at this time. All job applicants must be authorised to work for any employer in the country where the position is indicated to be based.