15 hours ago
London, United KingdomSenior
Responsibilities
- Build and maintain reusable mock backends, APIs, proof-of-concept applications, and demo infrastructure.
- Use LLMs and Generative AI, including Claude and Gemini, to accelerate prototyping and development.
- Design contract-first REST and GraphQL APIs using Node.js and TypeScript.
- Deploy demo infrastructure on AWS and manage reproducible environments with Terraform.
- Use PostgreSQL or DynamoDB for persistence and integrate mock services with frontend components.
- Partner with pre-sales consultants to turn client win themes into working technical artefacts and occasionally present demos to clients.
- Collaborate with frontend, design, and product teams on UI direction, integration debugging, and end-to-end demo flows.
- Mentor the pre-sales team on API design, architecture, engineering standards, and GenAI workflows.
Requirements
- Strong hands-on 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.
- Experience using Git and GitHub workflows.
- Familiarity with AWS primitives and the ability to deploy infrastructure using Terraform.
- Practical knowledge of OIDC-based authentication flows.
- Ability to translate ambiguous client requirements into working systems with initiative and autonomy.
- A portfolio or track record of internal tools, sales demos, or high-fidelity AI-first proof-of-concepts is advantageous.
- Understanding of global energy retailer challenges and experience sharing UX/UI design thinking are advantageous.
Benefits
- Hybrid working in London or Bristol with an expectation of three days per week in the office.
- Pension scheme, discretionary bonus scheme, private medical insurance, virtual GP, and life assurance.
- Climate Action app access, free mortgage advice, eye tests, and retail discounts through Perks at Work.
- A 5% Flex Fund for customizing benefits.
- 26 days of holiday plus eight flexible bank holidays.
- Enhanced caregiver leave, including up to 26 weeks of full pay for primary caregivers and four weeks of 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.