Green Project Tech is building the intelligence layer behind sustainable supply chains. These tools feed into Account50 and Act50, powering a full-stack sustainability platform used by enterprises and SMEs across the GPT/ACT ecosystem. ACT, our parent company, is a global leader in sustainable products — giving us reach and credibility, with the autonomy and excitement of a startup. Green Project is looking for a Tech Lead (Senior Software Engineer) to lead a small, high‑impact engineering team building features that power Engage50 and Product50 — the products helping enterprises measure and reduce their carbon footprint. You’ll set the technical direction, mentor others, and use AI‑assisted development to multiply the team’s speed and impact. This is a hands‑on leadership role with real product ownership and a clear mission: accelerate the world’s transition to net‑zero. Lead a small, fast‑moving team building features across Engage50 and Product50. Set technical direction, uphold engineering standards, and ensure high‑quality delivery. Balance hands‑on coding with mentoring, design reviews, and coordination across product and design. Drive adoption of AI‑assisted development to boost productivity and creativity across the team. Partner daily with product managers, designers, and other engineers to turn ideas into shipped features — and help shape the technical culture of the company as we scale. Deep expertise in Go or React (and a willingness to stretch across both) Proven experience leading projects or small teams Motivation to build meaningful software for sustainability Familiarity with cloud infrastructure, deployment automation, and monitoring are a plus The base pay range for this position is £85,000 – £100,000 annually + discretionary bonus; Competitive salary Flexible / hybrid working (London‑based preferred, occasional remote) Generous annual leave and public holidays If you’re passionate about sustainability and have a track record of success in carbon accounting (or a desire to pivot into climate tech!), Apply now to join our team and help our clients achieve their sustainability goals. Green Project Technologies, Inc. is an equal opportunity employer that is committed to ensuring equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. #
Tech Lead (Senior Software Engineer) • City Of London, England, GB
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