Pre-Sales Senior Engineer, Kaluza

• You are a software engineer by trade but a prototyper by heart. You understand the rigour of clean code but know when to lean into AI to accelerate delivery
• You are motivated by the immediate impact of winning new clients and validating Kaluza’s value proposition in real-time
• Software Engineering Foundation: Strong hands-on experience in Node.js / TypeScript and React. You know how to write code from scratch, which is why you’re so good at prompting AI to do it for you
• GenAI Power User: Deep experience leveraging LLMs and Generative AI to build apps, debug complex issues, and accelerate the development lifecycle. You aren't just using an AI assistant; you are "vibe coding" complete PoCs
• API Design Expert: Experience designing clean, well-documented APIs (REST and/or GraphQL) and using Git/Github workflows effectively
• Cloud & Infrastructure Knowledge: Familiarity with AWS primitives and a proven ability to deploy infrastructure using Terraform
• Pragmatic & Autonomous: Comfortable operating with ambiguity, translating vague client requirements into working systems through a high degree of initiative
• If you're excited about joining us and think you have some of what we're looking for, even if you're not 100% sure, we'd still love to hear from you

Desirable

• Reporting To: Head of Client Solutions
• As a Senior Pre-Sales Engineer, you are a "developer-plus" technical contributor
• You are responsible for building high-quality mock backends, APIs, and demo infrastructure, but with a unique twist: you leverage LLMs and Generative AI to prototype at high velocity
• This role sits at the critical boundary between Product Engineering and Go-to-Market
• While you won't build production systems, you will build "production-shaped" assets: reusable, well-structured, and documented services that enable credible technical storytelling and high-fidelity client validation
• AI-Accelerated Prototyping: Leverage LLMs (e.g., Claude and Gemini) to rapidly scaffold, build, and iterate on proof-of-concept apps and mock services. You move faster than a traditional sprint by using AI to handle the "heavy lifting" of boilerplate and logic generation
• Technical Asset Development: Design, build, and maintain reusable mock services in Node.js / TypeScript. You’ll implement contract-first APIs (REST/GraphQL), manage AWS deployments (API Gateway, Containers), and handle persistence using PostgreSQL or DynamoDB
• Infrastructure as Code: Manage demo environments using Terraform, ensuring environments are reproducible and secure using existing OIDC authentication patterns
• Frontend Collaboration: Work closely with frontend engineers to ensure UI components point cleanly to your mock services, debugging integration issues and supporting end-to-end demo flows
• Strategic Pre-Sales Support: Partner with Pre-Sales consultants to translate client "win themes" into working technical artefacts. You will occasionally demo directly to clients, showcasing how Kaluza solves their specific retail challenges
• Product & UX Influence: Collaborate with Design and Product teams for UI direction while developing your own design ideas to make Kaluza’s capabilities shine
• Mentorship & Standards: Set informal engineering standards for the pre-sales team, mentoring others on API design and architecture
• AI Evangelism: Act as the resident expert in GenAI workflows for the Commercial team, mentoring others on how to use AI to bridge the gap between "slide-ware" and "software."

• Closing date for applications: Monday 16th February 2026