Mid & Senior Full Stack Engineers | Green Tech / Energy Tech Start-Up | React.js Node.js TypeSc[...]

JR United Kingdom; Stevenage; Hybrid; GBP 50,000 - 95,000; Full time

Job summary

A leading Green Tech start-up is on the hunt for Mid & Senior Full Stack Engineers. You'll play a critical role in developing systems that shape the future of energy efficiency and sustainability. Join a dynamic team in an impactful environment, focused on advancing technology while making a real difference in combating climate change. This role demands excellent collaborative spirit with flexible working arrangements based between London and Bristol.

Benefits

33 days holiday

Work abroad up to 30 days/year

Healthy equity options

Qualifications

• 5 years commercial experience required.
• Experience in SQL and relational database design.
• Must possess skills in RESTful APIs and distributed systems.

Responsibilities

• Develop automated design tools for energy systems.
• Collaborate closely within a small team on product development.
• Own features end-to-end, from concept to delivery.

Skills

SQL

RESTful APIs

Scalable architectures

Secure architectures

Team collaboration

Tools

React.js

Node.js

TypeScript

PostGREST

Prisma

Job description

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Mid & Senior Full Stack Engineers | Green Tech / Energy Tech Start-Up | React.js Node.js TypeScript | LDN 2 Days Per Week | £50K - £95K + Healthy Equity, stevenage

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EU work permit required:

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Job Views:

2

Posted:

04.06.2025

Expiry Date:

19.07.2025

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Job Description:

Mid & Senior Full Stack Engineers | Green Tech / Energy Tech Start-Up | React.js Node.js TypeScript | LDN 2 Days Per Week | £50K - £95K + Healthy Equity

Company:

I'm looking for mid and senior full stack engineers who are excited about elegant systems as they are about real-world impact. You’ll join a lean, talented team of engineers and work directly on tools that accelerate the energy transition — like:

-> Automated design tools for heat pump systems

-> A survey app for collecting property data on-site

-> D/3D floorplan creators (maybe even with LiDAR and CV!)

-> Country-wide data tools through large-scale scraping + mapping

-> Hardware integrations (e.g. bluetooth laser measures, sensors)

-> Offline-first/PWA apps for installers on the move

-> React, TypeScript, Konva, Tailwind

-> Node.js, PostGREST, Prisma

-> (Sunsetting Python + FastAPI)

Requirements for Mid & Senior Full Stack Engineers | Green Tech / Energy Tech Start-Up | React.js Node.js TypeScript | LDN 2 Days Per Week | £50K - £95K + Healthy Equity

-> 5 years commercial experience

-> SQL and relational database design

-> RESTful APIs and distributed systems

-> Scalable and secure architectures

-> Owning features end-to-end, from shaping the product idea to shipping the code.

Type of engineer for Mid & Senior Full Stack Engineers | Green Tech / Energy Tech Start-Up | React.js Node.js TypeScript | LDN 2 Days Per Week | £50K - £95K + Healthy Equity

->You’re product-minded — you care about the user and the why behind every line of code.

->You’re impact-driven — you want to move fast and make a real dent in the climate crisis.

->You’re collaborative — you're excited to work closely with a tight-knit, in-person team.

->You’re into sustainable tech, heat pumps, or building a greener future.

-> 33 days holiday + work abroad up to 30 days/year

-> Hybrid working between London & Bristol studios

-> Work closely with a brilliant, mission-led team

If you want to hear more about the Mid & Senior Full Stack Engineers | Green Tech / Energy Tech Start-Up | React.js Node.js TypeScript | LDN 2 Days Per Week | £50K - £95K + Healthy Equity please apply ASAP with a CV and we will give you a call if we think you are a match! ?