Overview

Join to apply for the Senior Software Engineer role at Heidi. Heidi was born to make it easy for people to discover the power of the mountains. We burst onto the ski holiday market in 2018 (formerly Ski Zoom) and have seen exponential growth—64% in 2024 and continuing 2025 projections. With a youthful, challenger brand spirit and a culture that encourages impact, we’re shaking up a traditional ski/mountain holiday industry.

Base pay range

Salary range is package-based and will be determined by skills and experience, in consultation with your recruiter.

Role

Heidi’s tech enables a seamless customer experience. Our engineering team builds powerful APIs, serverless systems, a NextJS/React front‑end, and integrated tools that have never been seen in the winter travel sector.

What You’ll Be Doing

• Developing ASP.NET Core APIs and serverless systems.
• Improving the existing NextJS/React front‑end or travel companion app.
• Building new features for customers and internal tools, or integrating with new suppliers.
• Upgrading our platform and infrastructure as the business and traffic grow.
• Building tools and improving processes for the development team.
• Actively involved in planning and technical architecture for the company roadmap.
• Building something completely new that might transform a part of the business.

This role may be a fit if

• You’re product‑oriented and pragmatic, building useful software that solves user problems.
• You have experience with front‑end JavaScript frameworks and website performance.
• You have experience building and maintaining APIs and server‑side infrastructure.
• You’re delivery‑focused but aware of the bigger picture and can design adaptable systems.
• You can work and communicate effectively with other teams, balancing technical and business priorities.
• You want to be a key member of a growing company and can thrive in ambiguity.

How big is the team?

1 × CTO, 6 × Full‑Stack Engineers.

Who will be your manager?

You’ll be reporting to Nico, our CTO.

The interview process

• TA Screen (30 min) with Luke, TA Partner.
• Technical Call Interview (45‑60 min) with Nico, CTO.
• Pair programming interview (120 min) with Nico.
• Culture interview (30 min) with Marcus, Co‑founder.

Employee Benefits

• £65‑£75K base salary.
• 25 days annual leave + bank holidays + 4 “well‑being” days.
• Hybrid working policy with flexible office/home balance.
• Vitality health insurance.
• Enhanced parental leave for primary/secondary carers and adoptive parents.

Additional Employee Perks

• £1,000 Heidi holiday credit + additional holiday discounts.
• Fun packed company social calendar including summer party, end‑of‑term conference and budget for team celebrations.
• £300 work‑from‑home budget.

Our Commitment to inclusive hiring

We want to create an inclusive environment that celebrates diversity and enables best work. All applicants are considered without regard to age, sex, ethnicity, religion, sexual orientation, gender identity, family or parental status, national origin, veteran, neurodiversity status, or disability status.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Other

Industries

IT Services and IT Consulting