High-Integrity Software Engineer

Join to apply for the High‑Integrity Software Engineer role at CoreTech Security.

Our Capability Development team develops bespoke software for clients in the cyber security domain. We specialise in C and C++ and have worked across iOS, Android, Windows, macOS and Linux. We emphasise a comprehensive understanding of the programming languages, platforms, and tooling, and are looking for a candidate who holds an active Developed Vetting security clearance.

Prospective Responsibilities

• Design a new clean‑slate product with complete autonomy over its architecture.
• Add new capabilities to or replace a core component of an existing product.
• Throw together a quick‑and‑dirty prototype to confirm feasibility, iterating until it meets requirements.
• Hands‑on in day‑to‑day delivery of projects, working with 1–2 colleagues.
• Unlock the potential of junior colleagues: encourage idiomatic code, demonstrate engineering rigour, share knowledge.
• Drive engineering processes to balance code quality, realistic delivery timescales, and client requirements.

Desirable Skills

• Professional experience designing and implementing complex C or C++ solutions, including clean‑slate and legacy codebases.
• Comfortable with platform APIs, development environments, and native debugging on Windows, macOS, Linux, iOS, or Android.
• Experience leading a small or midsize team through a complete project lifecycle.
• Commitment to code correctness and quality assurance via static analysis, code review, automated testing, and continuous integration.

Benefits

• Promotions based on technical excellence and reviewed regularly.
• 25 days holiday per year (plus bank holidays), option to buy up to 5 days.
• Additional holiday days after 2 years of service.
• Financial support for HMRC‑allowable relocation costs.
• Training and development opportunities.
• O’Reilly books subscription.
• Regular internal technical conferences, company socials, and lunch seminars.
• Free fruit, tea, coffee, milk, squash, hot chocolate.

Health Benefits (Private Medical)

• Private online GP and helpline.
• Access to physiotherapists, osteopaths, chiropractors.
• Mental health counselling and specialist consultations.
• Annual health assessment.

Financial Benefits

• Company bonus scheme tied to company success.
• 8% company pension contribution, no minimum employee contribution.
• Death in service cover of 4x base salary.

Lifestyle Benefits

• Enhanced maternity/paternity/adoption leave: 12 weeks full pay at start, 20 weeks after 2 years; 2 weeks paternity full pay at start, 4 weeks after 2 years.
• Enhanced cycle‑to‑work scheme; up to £1,000 purchase of e‑bikes and specialist cycles.

Location

Center of Cheltenham, a new build contemporary office, 5 minutes walk from local shops and cafes.

Application Process

Interview process is quick and to the point: brief call → technical interview. Successful applicants must hold an active Developed Vetting security clearance.

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