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Software Engineer

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Carbon13

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Location:
United Kingdom , London

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

55000.00 - 65000.00 GBP / Year
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Job Description:

Kestrix is on a mission scale energy retrofits of existing buildings – tackling the 20% of emissions coming from heating and cooling for an energy secure future in Europe and beyond. We’re looking for a software engineer as part of our growing platform team, led by CTO and co-founder Matt and reporting to our Head of Engineering Ash to lead development of critical algorithms and services across a range of frontier problems Including: Thermodynamic simulation; 3D mesh manipulation; Computer vision; Classification and Retrofit planning.

Job Responsibility:

  • Take ownership of the end-to-end development and implementation of services within Kestrix’s core platform. with problem spaces including: thermodynamic simulation, 3D mesh manipulation and computer vision
  • Participate in the design and architecture discussions, contributing your ideas and insights to ensure the scalability, reliability, and performance of the software
  • Design, build, and optimize robust front-end applications and user interfaces using the React ecosystem, enabling the intuitive visualization of complex 3D and thermodynamic data
  • Implement and maintain efficient and scalable GraphQL APIs to ensure low-latency data communication between thin clients and the core platform
  • Implement and maintain data processing pipelines, integrating external data sources, develop user interfaces and ensuring the efficient flow of information between different components of the system
  • Write clean, efficient, and maintainable code, following industry-standard software engineering practices
  • Conduct thorough testing, debugging, and troubleshooting of the software, identifying and resolving any issues or bugs that arise
  • Contribute to continuous integration and continuous deployment (CI/CD) practices, ensuring the smooth delivery and deployment of new features and updates
  • Develop and maintain a deep understanding of the business goals and objectives of Kestrix, aligning technology strategies and initiatives to support and drive these objectives forward
  • Conduct research and stay up to date with the latest advancements and trends in software engineering, and related fields, leveraging this knowledge to enhance Kestrix’s technologies and stay ahead

Requirements:

  • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or other relevant STEM discipline
  • 5+ years of software development in a commercial business
  • 2+ years of Python development experience
  • Demonstrated end-to-end project ownership, successfully taking initiatives from initial problem definition through R&D, planning, development, launch, and acceptance monitoring
  • Demonstrable experience developing and deploying complex front-end applications using the React ecosystem
  • Proficiency in designing, implementing, and optimising GraphQL APIs for thin-client architectures
  • Solid understanding of software engineering principles, including object-oriented programming, data structures, algorithms, and design patterns
  • Ability to quickly learn and adapt to new technologies
  • Experience with software development tools and practices, including version control (e.g. Github), agile methodologies, and issue tracking systems (e.g. Jira)
  • Understanding of software testing principles and experience with automated testing frameworks and methodologies
  • Understanding of CI/CD processes and tools
  • Strong problem-solving skills and the ability to work independently and as part of a team in a fast-paced startup environment
  • Excellent communication skills, with the ability to effectively collaborate and communicate technical ideas to both technical and non-technical stakeholders

Nice to have:

  • Knowledge of 3D geometry, computer graphics, 3D computer vision techniques
  • Knowledge of machine learning methods for image analysis, outcome prediction and making optimal recommendations
  • Knowledge of building physics, thermodynamics concepts
  • Experience deploying and managing runtime environments in Google Cloud Platform
What we offer:
  • 25 days paid time off, the week between Christmas Day and New Years (with flexibility to shift for those of non-Christian religious backgrounds), and a day off on your birthday
  • Hybrid working with at least 1 preferably 2 day(s) per week at our co-working space in Clerkenwell, London
  • Pension contributions (3% of salary)
  • Flexible working outside core working hours
  • Optional monthly team socials

Additional Information:

Job Posted:
March 01, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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