CoreTech Security
Rapid Cyber Software Engineer
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About the Role
Our Capability Development team develops bespoke software for our clients in the Cyber Security domain. We may be building assured software that prioritises engineering rigour and reliability, rapid cyber solutions that stitch together tooling for high-impact results, or blended operational systems that address real-world challenges in the field. Common to all is the commitment to technically led decisions, to meaningful technical challenge, and to engaging career paths where your work makes it off the shelf and into the hands of our customers. All of our roles demand strong technical expertise, meticulous attention to detail, and a commitment to delivering robust, dependable solutions that our clients can rely on when it matters most.
Role Description
This role is aimed at engineers who thrive in fast-moving, technically diverse environments where success comes from identifying the most effective solution and delivering it quickly. Rather than focusing on a single technology stack, you will combine existing tools, open-source software, automation, infrastructure, and bespoke development to create capabilities that solve real operational problems.
You will enjoy taking occasionally vague requirements and turning them into practical outcomes, rapidly evaluating options, integrating technologies, and iterating to maximise operational value. The emphasis is on delivering capability into the hands of customers quickly, while maintaining the engineering discipline needed to ensure solutions remain reliable, maintainable, and effective.
As part of our team, you may be:
- Rapidly developing bespoke tools and capabilities to meet emerging operational requirements.
- Integrating and extending existing applications, frameworks, and open-source tooling to deliver new outcomes.
- Building representative environments to test, evaluate, and demonstrate solutions before deployment.
In this role, you will be responsible for identifying, designing, and delivering technical solutions in response to evolving customer needs. You will combine software development, automation, infrastructure, and operational tooling to achieve outcomes efficiently, selecting the most appropriate technologies rather than defaulting to a single approach.
You will work closely with colleagues and customers to understand problems, validate ideas quickly, and continuously improve delivered capabilities. You will mentor junior engineers, share practical knowledge across the team, and contribute to a culture of technical curiosity, collaboration, and delivery-focused problem-solving.
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Desirable Skills
Successful candidates will have strong experience in a subsection of the following skills:
- Proficient in languages such as C, Python, Bash, Rust, and Go to create quick prototypes or modifications to existing applications.
- Experience combining multiple technologies, tools, and services to deliver capability quickly and effectively.
- A strong automation mindset, using scripting, orchestration, and repeatable workflows to improve delivery speed and reduce manual effort, freeing you to work on more interesting aspects of your projects.
- Understanding of networking and security concepts, including technologies such as IP, TCP/UDP, DNS, TLS, and Kerberos.
- Experience deploying and managing environments using technologies such as Docker, Ansible, Terraform, or similar tooling.
- Ability to understand and reason about complex networked environments using technologies such as VLANs, VRFs, tunnels, and routing protocols.
- Strong troubleshooting and problem-solving skills, with the ability to investigate unfamiliar technologies and integrate them into working solutions.
Work Benefits
- Promotions are based on technical excellence and reviewed regularly.
- 25 days holiday per year (with bank holidays on top), option to buy up to 5 days per year.
- Level up with an extra day of holiday per year, up to an extra 5 days, starting from 2 years' service.
- We offer financial support to cover HMRC allowable costs of relocating if you’re moving to the area.
- Training and development opportunities to support your career aspirations.
- O'Reilly books subscription which provides access to a huge range of technical books.
- Regular events including internal technical conferences, company socials, and pizza-fuelled lunchtime seminars.
- Free seasonal fruit, tea, coffee, milk, squash, and hot chocolate.
Health Benefits - Private Medical Including Access To
- Private online GP, and a helpline to speak with various healthcare professionals.
- Physiotherapists, osteopaths, or chiropractors for muscle, bone, and joint pain.
- Mental health - counselling, and specialist consultations and treatment with psychologists and cognitive behavioural therapists.
- Annual Health assessment.
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Financial Benefits
- A company bonus scheme so that everybody is rewarded for company success. This is an annual award that is based on the company hitting its targeted forecast. We have achieved this every year to date.
- 8% company contribution to pension with no minimum requirement for employee contribution.
- Death in Service cover of 4x base salary.
Lifestyle Benefits
- Enhanced maternity/paternity/adoption leave: 12 weeks maternity leave at full pay as soon as you join, further enhanced to 20 weeks full pay from 2 years’ service. 2 weeks paternity leave at full pay as soon as you join, further enhanced to 4 weeks full pay from 2 years’ service.
- Enhanced cycle-to-work scheme including the ability to purchase a bike over £1,000 (e-bikes, specialist cycles, and trikes allowed).
Salary
We are recruiting staff at all levels in this team, and are able to support market-leading salaries for every grade within our sector/location. We reward staff based on technical excellence and not years of experience, so it's important to us to speak with you to see which grade you would fit into - it's not always obvious from a CV! Your interviewer will spend time during your first interview speaking with you about how your skills and experience map against our grades, and discuss a salary band so that you know early what you can expect if you receive an offer from us. The technical interview will provide a deeper assessment of your skills against your mapped grade which ultimately determines whether you receive an offer and the exact salary.
Location
We are based in the centre of Cheltenham in a stunning new-build contemporary office, 5 minutes walk from the local shops and cafes.
Additional Details
Our interview process is quick and to the point: if you look like a good fit for the role, we'll schedule a brief call to discuss it in more detail and answer any questions you may have. If that goes well, we'll arrange a technical interview to understand your level of experience. We aim to get back to you with an answer within a couple of days of the technical interview.
Please note, due to the sensitivity of the role, successful applicants must hold an active Developed Vetting security clearance.
If you’re looking for a challenging role where you can make a real impact in the world, in a friendly environment and with all the support to advance your career, click apply.
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