Salary: £30,000 - £40,000 depending on experience and qualifications

Location: Remote (all UK locations considered) with flexible working arrangements. Our flexible office collaboration spaces, for those wishing to use them, are in London, Bristol and Exeter.

Term/Hours: Permanent (6-month probation). Full-time (40 hours per week)

Right to Work: Must have own right to work in the UK for more than 2 years

Closing date: Monday 9th November 2026

CVs FROM RECRUITERS (INCLUDING THOSE ON OUR PSL) WILL NOT BE ACCEPTED. DIRECT APPLICATIONS ONLY.

We welcome applications from all suitably qualified candidates regardless of sex, gender identity, age, disability, ethnicity, religion or belief, sexual orientation, or any other protected characteristic.

We are only accepting direct applications (no recruiters please).

Unfortunately, we cannot consider applications requiring visa sponsorship now, or in the future.

ABOUT US

City Science is an SME founded in 2015 with a core mission of delivering decarbonisation. We help organisations who are committed to decarbonisation achieve meaningful and quantifiable carbon reductions quickly and efficiently.

Our software and product development team produce innovative and uniquely insightful digital tools, like Cadence and our decarbonisation tool, to successfully deliver our projects.

We work collaboratively across our consultancy team made up of transport, energy, sustainability, carbon accounting and applied data science specialists to provide integrated solutions to our clients. Our range of clients is extensive and includes forward-thinking local authorities like Oxfordshire County Council, sub-national transport bodies like England’s Economic Heartland and national organisations like Department of Energy Security & Net Zero (see our full list of projects here).

We have a series of emerging services lines (which are all underpinned by market areas), including the following focused within:

• Net Zero Strategies & Roadmaps (e.g. Area-based future decarbonisation pathways, green growth strategies)
• Net Zero Development (e.g. Transport evidence bases for Local Plans and infrastructure strategies)
• Sustainable Transport (e.g. Local cycle & walking infrastructure plans (LCWIPs), bus service planning and movement strategies)
• Net Zero Transport (e.g. Electric Vehicle charging strategies and net zero transport pathways)
• Transport Modelling (e.g. Strategic, freight, micro-simulation and active travel modelling)
• Heat & Retrofit (e.g. Heat pumps sizing, internet of things)
• Energy Planning (e.g. Local Areas Energy Plans)
• Energy Modelling (e.g. DNO capacity, building monitoring/benchmarking)
• Data Engineering (e.g. Future technology roadmaps)
• Carbon Accounting (e.g. Business decarbonisation, circular economy)

About the Role

We are looking to grow our team of developers working across the full stack to deliver cutting edge applications and tools to support our decarbonisation mission. This role requires highly talented individuals who can take a proactive role in problem solving. Successful candidates must be able to show extremely high aptitude in mathematics and analytical problem solving.

Existing coding skills are not required but are desirable and driven candidates with self-taught skills are particularly encouraged to apply. City Science predominantly uses JavaScript and Python, but other languages are also used, and all experience is considered. Experience working with cloud-based services is also desirable. Experience using AI to support software development is welcome but we expect candidates to demonstrate and develop independent skills, motivation and communication throughout the application process.

Key Responsibilities:

• Develop and maintain a range of applications and tools that support clients to plan, monitor, evidence and visualise their decarbonisation pathway
• Energy Modelling (e.g. Home Energy Model, building physics/benchmarking)
• Support staff internally to provide insights with a high level of automation/digitisation, meeting or exceeding industry standard practices
• Manage the full development stack and work flexibly to meet emerging need
• Collaborate across teams and grow relationships between consultancy professionals and software developers
• Drive new technologies and integrated ways of working
• Communicate the case for decarbonisation through cutting edge software tools

Requirements

• BSc 2:1 or better in a STEM subject (1st class degree, PhD or higher-level qualification desirable)
• Able to demonstrate very strong mathematical and numerical skills
• Drive to learn and develop coding and technology skills across the full stack (experience and/or self-taught skills desirable)

· Excellent problem solver

• Can demonstrate ability to work as part of a team, collaborating effectively with both internal and external stakeholders
• Proven science communicator to both technical and non-technical audiences
• Passion to make the case for, and execute, decarbonisation

Rewards & Benefits

• Opportunity to work on a diverse range of projects across the consultancy business
• Opportunity for career progression
• 25 days annual leave entitlement
• Competitive salary (based on skills and experience)
• Ongoing mentoring, training and support from senior professionals within the business (including towards professional chartership)
• Paid membership of a maximum of two institutions

· Flexible working arrangements

• Membership of our group pension scheme

FURTHER INFORMATION

We are building a team who are motivated by collaboration with the desire to solve problems for our customers. We want people to own their field of responsibility, take decisions, be pro-active and have pride in everything they do. Our team of experts includes prize-winning consultants, experienced technologists and distinguished academics.

We are an Equal Opportunity Employer, and we passionately believe in supporting each person reach their full potential.

RECRUITMENT PROCESS

1. Complete the application questions and try to keep your responses personal without using AI or automated tools. We value authenticity and genuine responses.

2. If successful after the first screening process you will be invited to take part in numerical or aptitude test

3. Soft skills Teams interview around ethos

4. Teams technical interview

Highlights

We are looking for a Graduate Software Developer who will work across the full stack to deliver cutting edge applications and tools to support our decarbonisation mission.

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