Software Engineer

Hardware R&D Studio | Software Developer (Employed Contractor, Part-Time) | 1 day per week in London office | £35K (4 Days per Week)

About the Company:

Our client is a fast-growing hardware R&D studio supporting startups, scaleups, and corporates to bring ambitious physical products to life. Acting as an MVP builder and innovation partner, they rapidly prototype and test hardware-adjacent products to validate ideas at the earliest possible stage.

Operating primarily within sustainability and impact-led sectors, the team works across IoT, automation, logistics, and electronics. With a lean core team and a network of specialist freelancers, they are now internalising more of their software capability as they scale into their next phase of growth.

About the Role:

As a Software Developer, you will join on a part-time employed contractor basis, working closely with the founder and technical collaborators across a range of internal and client-facing projects.

You will take ownership of full stack development across hardware-adjacent platforms, internal tools, and customer-facing web applications. Projects are fast-moving, often delivered in short sprints, and require autonomy, strong judgement, and a build-first mindset.

This role is suited to a mid-level developer who enjoys variety, ambiguity, and working on early-stage products that combine hardware and software systems.

Responsibilities:

• Collaborate directly with the founder and clients to define, design, and ship new features.
• Build and maintain full stack applications using TypeScript, ReactJS, and NodeJS.
• Develop backend services and APIs, often deployed on AWS or Docker-based infrastructure.
• Maintain and improve system performance, stability, and scalability.
• Troubleshoot technical issues across cloud environments and hardware-software integrations.
• Contribute to internal tools that support R&D, prototyping, and product demonstrations.
• Manage your own time and task delivery across short, high-intensity project cycles.

Requirements:

• Proven experience as a Software Developer in a commercial environment.
• Strong experience with TypeScript, ReactJS, and Python.
• Comfortable working with cloud infrastructure, ideally AWS.
• Experience using Docker and Git in production workflows.
• Confident working autonomously with minimal hand-holding.
• Clear, concise communicator who is comfortable in client-facing discussions.
• Energised by fast-paced, technically challenging projects.

Nice to Have:

• React Native or TanStack experience.
• Exposure to C/C++ or firmware-adjacent development.
• Experience with IoT deployments or hardware-software interfaces.
• Familiarity with Kubernetes or Progressive Web Apps.

Compensation and Benefits:

● £35K pro rata (based on 4 days per week).

● Hybrid working with 1 day per week on-site in Central London.

● Opportunity to form part of the early core team as the company scales.

● Exposure to high-impact sustainability and hardware innovation projects.

● ESOP planned as part of long-term growth strategy.