Software Engineer - Senior

Factor; United Kingdom; Remote; GBP 90,000 - 120,000; Full time

Job summary

Factor is redefining the global energy industry with modern tooling. We’re hiring a Senior Software Engineer in the UK to join a tight-knit team building the platform that powers real-time pricing decisions for energy retailers.

You’ll work on data pipelines, pricing engines and APIs, collaborating with experienced engineers who leverage AI tools to accelerate delivery. This Full-time role offers the chance to scale a growing platform across international markets, contribute to core systems, and

Responsibilities

• Build data pipelines, pricing engines, and APIs.
• Collaborate with a senior team that uses AI tools daily to move faster.

Job description

The energy transition needs more than ambition

Factor was founded by a team who spent over a decade in the energy industry and were tired of watching smart people work around tools that weren't built for the job. Factor became the solution.

LeadErship

Built by people who know the market

Factor was built by people who'd spent years inside the energy industry, watching pricing teams work around tools that weren't built for the job.

Co-founder and Managing Director

Jessica spent over a decade working at the forefront of the New Zealand energy market, including senior roles at Flick Electric and Flux Federation, before co-founding Factor. She brought a deep understanding of what energy retailers actually need to compete, and the conviction that the tooling available to pricing teams was overdue for a rethink.
At Factor, Jessica leads commercial strategy, market development, and the relationships that have taken the platform into three international markets in its first year of operation.

Co-founder and CTO

Simon's background is in building technology for complex, data-heavy environments, with experience across the energy sector before co-founding Factor. He is the architect of the Factor platform, having designed the technical foundations that allow it to handle the scale and complexity of modern energy pricing, across markets, products, and operating contexts.
At Factor, Simon leads product and engineering, with a focus on building something that is modern, scalable and built for the future of energy.

1

year since Factor launched

3

international markets operational

2

Our milestones

Factor launched in June 2025. Within the first year, the platform had been onboarded by customers in two international markets and was actively operating across three. The response from the market confirmed what the team had believed from the start: the problem was real, the timing was right, and the product worked.
Factor is an AWS partner and a Salesforce partner, integrating with the CRMs, billing systems, and data platforms that energy businesses already rely on.

Be part of the team

Join us in redefining the global energy industry through leading-edge technology. Build modern tools used by energy experts and businesses worldwide, and see your work create real outcomes at a global scale.

Full time

UK

Join us as a Senior Software Engineer and help build the platform powering real time pricing decisions for energy retailers. You'll work on the core of the system: data pipelines, pricing engines, and APIs, alongside a senior team that uses AI tools daily to move faster.

If your current pricing and forecasting capability wasn't built for the complexity of today's market, we'd like to show you what was.

Taiawa, Level 5, 1 Rutherford House, 33 Bunny Street, Pipitea, Wellington 6011