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Senior Platform Software Engineer - Energy market modelling - Remote-first (UK) - Competitive base + profit share

La FosseUnited Kingdom
Remote · UKMid-Senior Level

Skills

  • PYTHON
  • JAVA
  • AWS
  • AZURE
  • TERRAFORM
  • CDK
  • PULUMI
  • AZURE DEVOPS
  • CI/CD
  • DATABRICKS
  • POSTGRES
  • S3

About the role

A world-leading energy market modelling team, inside a global consultancy, is building a new data and processing platform. It will power the models used to plan the energy transition: scenario projections spanning 50+ years, from kilobytes of research papers to terabytes of hourly data.


The platform is greenfield. The MVP is about to go live, and the plan is to roll it out across the US, Australia and Singapore. You’d be one of its founding engineers, working directly with the Engineering Lead to decide how it’s built.


What you’ll do


  • Design and build the core platform and the software around it: integrations, APIs, data flows and tooling.
  • Own how it runs: CI/CD, infrastructure as code, deployment, hosting, scaling and observability.
  • Make the architecture calls, and be able to explain why.
  • Work with energy modellers, analysts and internal developers to turn their problems into platform features.
  • Mentor a small team of a junior engineer and two associates (no line management).


The stack


  • Languages: Python first, with Java for Databricks integration
  • Cloud: AWS primary, with Azure for identity.
  • IaC: Terraform (CDK or Pulumi experience transfers).
  • CI/CD: Azure DevOps.
  • Data: Databricks, Postgres, S3, caching and pipelines.
  • UI: lightweight React and TypeScript.
  • AI tooling: GitHub Copilot with all vendors’ models from day one.


What we’re looking for


  • A software engineer first. Backend-leaning, writing clean, well-tested code in a high-level language.
  • Someone who builds the framework, not just fits into one. You’ve designed systems end to end, not picked up tickets inside a pattern someone else set.
  • Hands-on, recent infrastructure ownership. You’ve written the Terraform and built the pipelines yourself, and you can walk through how your services are deployed, hosted and scaled.
  • Opinions. Ask what you’d change about the last system you worked on, and you’ll have a clear answer.
  • Data platform interest. Here’s the test: could you build a platform like Databricks, rather than just use one?
  • Clear communication. You can explain technical trade-offs to non-technical experts.


Nice to have: Databricks or Spark, React, and energy or utilities experience.


Why this role


  • Impact: your work feeds directly into energy transition and decarbonisation analysis.
  • Greenfield and global: a new platform, a small senior team, and real influence over the architecture.
  • Profit share with a 3-year tail, plus pension, private health, dental and a wellbeing fund.
  • Remote-first: occasional London days, with travel covered if you’re based outside London.
  • A clear process: an intro call, a practical case study (design, discussion and coding in your own environment), then a final conversation with a partner.


They are looking for candidates who have built platforms, not just shipped features on them.


Paying up to £100k + Bonus scheme + benefits

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