Pre-Sales Senior Engineer

Company: Kaluza
Apply for the Pre-Sales Senior Engineer
Location: London
Job Description:

Overview

In this role you will act as a developer-plus technical contributor at the intersection of product engineering and go-to-market. You will build high-quality mock backends, APIs, and demo infrastructure, accelerated by GenAI to create production-shaped assets for credible client validation. You’ll collaborate across design, product, and sales to translate client needs into working technical artefacts and engaging demonstrations. You will mentor peers, set pre-sales engineering standards, and evangelize GenAI workflows to bridge slides and software.

Pay / Benefits

  • Pension Scheme
  • Discretionary Bonus Scheme
  • Private Medical Insurance + Virtual GP
  • Life Assurance
  • 26 days holiday
  • Flexible bank holidays

Responsibilities

  • AI-Accelerated Prototyping: use LLMs to scaffold and iterate PoCs and mock services
  • Technical Asset Development: build reusable mock services in Node.js / TypeScript with REST/GraphQL APIs
  • Infrastructure as Code: manage demo environments with Terraform and secure deployments
  • Frontend Collaboration: align UI with mock services and support end-to-end demos
  • Strategic Pre-Sales Support: translate win themes into technical artefacts and demonstrate value to clients
  • Product & UX Influence: collaborate with Design and Product to guide UI directions
  • Mentorship & Standards: set engineering standards and mentor others on API design
  • AI Evangelism: lead GenAI workflows within Commercial and train teams

Key requirements

  • Strong hands-on experience in Node.js / TypeScript and React
  • Deep experience with GenAI and building PoCs using AI-first workflows
  • Experience designing clean APIs (REST and/or GraphQL) and Git/GitHub workflows
  • Knowledge of AWS and deploying infrastructure with Terraform
  • Pragmatic and autonomous mindset, able to translate vague client needs into working systems
  • Pragmatic and autonomous
  • Collaborative teamwork
  • Mentoring and coaching
  • Node.js / TypeScript
  • React
  • REST and GraphQL API design

…

Posted: October 10th, 2026