6 hours ago
London, United KingdomSenior
Responsibilities
- Build and maintain reusable mock backends, APIs, proof-of-concept applications, and demo infrastructure.
- Use Claude, Gemini, LLMs, and generative AI workflows to rapidly prototype and iterate on technical assets.
- Design contract-first REST and GraphQL APIs using Node.js and TypeScript.
- Deploy demo infrastructure on AWS, including API Gateway and containerized environments.
- Manage reproducible demo environments with Terraform and OIDC authentication patterns.
- Collaborate with frontend engineers on React integration, debugging, and end-to-end demo flows.
- Translate client win themes into working technical artefacts and occasionally demonstrate solutions directly to clients.
- Work with Product and Design teams on UI direction and contribute UX ideas.
- Mentor the pre-sales team on API design, architecture, engineering standards, and GenAI workflows.
Requirements
- Strong hands-on software engineering experience with Node.js, TypeScript, and React.
- Deep experience using LLMs and generative AI to build applications, debug issues, and accelerate development.
- Experience designing clean, documented REST and/or GraphQL APIs.
- Effective use of Git and GitHub workflows.
- Familiarity with AWS primitives and proven ability to deploy infrastructure using Terraform.
- Practical knowledge of OIDC-based authentication flows.
- Ability to translate ambiguous client requirements into working systems autonomously.
- A portfolio or track record of internal tools, sales demos, or high-fidelity AI-first proof-of-concepts is advantageous.
- Understanding of energy retailer challenges and experience contributing UX/UI design thinking are advantageous.
Benefits
- Hybrid work in London or Bristol with an expectation of three office days per week.
- Pension scheme, discretionary bonus scheme, private medical insurance, virtual GP, and life assurance.
- Climate Action app access, mortgage advice, eye tests, retail discounts, and a 5% flexible benefits fund.
- 26 days of holiday plus flexible bank holidays providing up to eight additional selectable days.
- Enhanced parental leave with no qualifying service period, including up to 26 weeks’ full pay for primary caregivers and four weeks’ full pay for secondary caregivers.
- Dedicated personal learning and home office budgets.
Tech Stack
Categories
Solutions Engineering
About Kaluza
Kaluza builds an energy software platform for utilities and suppliers to run billing, smart EV charging, and real-time demand response across homes, devices, markets and grids. It sells its platform and services to energy companies and OEM partners; customers include OVO, AGL and ENGIE, with collaborations with Volvo and Volkswagen. Headquartered in London and B Corp‑certified, Kaluza operates across Europe, North America, Asia and Australia, including a joint venture with Mitsubishi in Japan.