Back-End Engineer

The Role

As a Back-End Engineer at Watt Footprint, you will help develop and scale the core services that power our energy monitoring platform across web and mobile applications. Our platform is already used by customers and plays a central role in helping organisations understand, manage, and reduce their energy consumption. This role is ideal for an engineer who enjoys building reliable, scalable back-end systems, owning core services and APIs, and contributing to the evolution of a growing product.

You will work closely with our Front-end/mobile Developer, Data Engineer, and Product team to ensure the underlying architecture supports a high-quality user experience and future growth. You’ll have a strong level of autonomy as a back-end subject-matter expert, with the trust to make sound technical decisions, and clear opportunity to grow into a more senior role with increased responsibility and influence over technical direction.

Responsibilities

  • Own and develop our back-end services, APIs, and data layer, from new feature development through to deployment and ongoing maintenance.

  • Design, build, and maintain scalable, secure, and well-structured server-side systems.

  • Work closely with the front-end/mobile developer to support efficient integration between client applications and back-end services.

  • Manage and develop our existing cloud infrastructure (AWS) to ensure reliability, scalability, and security.

  • Contribute to architectural decisions as the product and user base grow.

  • Implement and maintain integrations with third-party services and internal tools.

  • Write clean, well-tested, and maintainable code, following best practices.

  • Assist in improving development workflows, documentation, and technical standards.

Required Skills & Experience:

  • BSc in Computer Science, Computer Engineering, or a related field.

  • Startup / scale-up experience.

  • 3+ years of experience in back-end or server-side development with a proven track record of delivering production systems.

  • Strong experience with Node.js (or similar server-side language).

  • Experience building and maintaining RESTful APIs.

  • Experience working with cloud infrastructure on AWS, Azure, or Google Cloud.

  • Good understanding of databases (SQL and/or NoSQL) and data modelling.

  • Ability to take features from concept through to production.

Company Benefits

  • Salary of €45,000 – €60,000, depending on experience.

  • Remote-first with flexible working hours.

  • Professional development opportunities to support your career ambitions.

  • Monthly team-building workshops and social events.

  • 23 days annual leave plus bank holidays and your birthday off.

Our Culture:

At Watt Footprint, we are united by our core values:

  • Do It Right: We ensure a holistic view, doing it right from the start and setting our team and clients up for success.

  • Adapt and Innovate: We challenge the norm and adapt to achieve the best results every time.

  • Don't be an Activist, be an Actionist: We deliver real energy savings, taking action today for tomorrow's success.

  • Open and Transparent: Effective communication and a transparent, open-book approach are key to our project delivery.

  • Team Players: We build trust and support within the team, embracing collaboration.

Let’s work together.

Interested in applying? Fill in your details and we will be in touch shortly!