Software Engineer

Quell is a high-growth British defence and security AI technology start-up developing solutions to counter drone, vehicle, and human threats across the military, civilian and critical national infrastructure sectors.

Based near Cambridge, we are seeking exceptional Software Engineers to join our small but rapidly expanding development team. You will work across a wide range of projects, from early-stage prototypes to fully developed products, helping to build new technologies that solve complex, real-world challenges. This is a hands-on role with significant autonomy, responsibility, and exposure to varied technical domains.

You will have the opportunity to work across the full prototype-to-product lifecycle in a fast-paced R&D environment

Key Responsibilities

Designing and developing software for both prototype systems and production-ready productsWorking across multiple projects concurrently, adapting to different technical challengesCollaborating with engineers to integrate software with hardware and wider system componentsRapidly learning and applying new technologies to support diverse R&D effortsContributing to problem-solving at all stages of the development lifecycleSupporting software used to control hardware platforms, sensors, or custom devices

Requirements

Strong academic background (2:1 or above) in a STEM discipline (Computer Science, Mathematics, Physics, Engineering, etc.)Demonstrated ability to solve difficult or ambiguous technical problemsAbility to work independently with minimal supervisionWillingness and ability to learn new tools, languages, and technologies quicklyWorking knowledge of PythonExperience interfacing software with hardware or embedded systemsFamiliarity with computer networkingExperience with deep-learning frameworks (TensorFlow, PyTorch)Understanding of machine learning, statistics, optimisation, or algorithm developmentExperience developing mobile applications (iOS and/or Android)This role is suitable for both graduate-level applicants and more experienced engineers, as long as they demonstrate strong problem-solving abilities

Details

Location: North Uttlesford / Greater Cambridge area, on-siteFive days a week on-site (ie: this is not a hybrid role)Applicants must be fully eligible to work in the UK without restriction, time limit, or the need for current or future sponsorship.

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