{"id":2282930,"url":"https://alion.io/job/coretech-security-software-engineer","title":"Software Engineer","company":{"id":3854592,"name":"Coretech Security","domain":"coretech-security.com","url":"https://alion.io/company/coretech-security","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":73,"open_postings":11,"ghost_share":0.455,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Cheltenham, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":64000,"max_usd":160000,"period":"year","method":"role_country_seniority_unknown","sample_n":359},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Go","optional":false},{"name":"JavaScript","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"TypeScript","optional":false},{"name":"CI/CD","optional":true}],"status":"live","first_seen_at":"2026-07-09T16:32:54Z","employer_posted_date":"2026-07-09","last_verified_at":"2026-10-12T16:34:37Z","board_verified":true,"closed_at":null,"days_open":95,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":94},"description":"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 solutions that bring together existing tooling for high-impact results, or blended operational systems that address real-world challenges in the field. Common to all is a commitment to technically led decisions, meaningful technical challenge, and engaging career paths where your work makes it off the shelf and into the hands of our customers.\nAcross our projects, we work with a range of platforms, languages and delivery environments. This may include web applications, native applications, automation, data processing, integration work, mobile platforms, Linux systems, cloud or on-premise deployments, and specialist operational environments. We are interested in engineers who are comfortable adapting to different technical contexts and choosing appropriate tools for the problem at hand.\nThis role is aimed at software engineers with experience delivering software projects using interpreted languages and modern development practices. You may have worked with languages such as Python, Rust, JavaScript, C++, TypeScript, Go or similar, alongside experience building user-facing systems, APIs, services, native applications or tooling. We are less concerned with a fixed technology stack and more interested in strong engineering fundamentals, practical problem solving, and the ability to deliver useful, maintainable software.\nWe are led by engineers and empowered to optimise our lightweight development processes with the knowledge gained from each project. We value people who take ownership, communicate clearly, work well in small teams, and enjoy seeing software make a difference.\nWe are ideally looking for a candidate who holds an active Security Clearance to join our team, however, we will consider sponsoring new clearances for candidates that meet our technical requirements.\nKey Responsibilities\nAs part of our team, you may be:\nDesigning and developing new software products, tools or capabilities from early concept through to delivery.\nAdding new features to, improving, or replacing components within existing systems.\nBuilding prototypes to explore technical options, validate ideas and help shape project direction.\nDeveloping web, native, service-side or automation-focused software depending on project need.\nIntegrating applications, APIs, third-party tools or internal systems to deliver practical outcomes.\nWorking with colleagues and customers to understand requirements and turn them into reliable software.\nFor this role, you will be hands-on in the day-to-day delivery of projects. Typically, this will see you working with one or two other colleagues at a time, taking responsibility for implementation decisions while contributing to wider project planning and delivery.\nYou will help maintain high engineering standards through clear design, readable code, testing, review and pragmatic technical decision-making. You may also support junior colleagues by sharing knowledge, encouraging good development practices, and helping the team balance quality, maintainability and realistic delivery timescales.\nDesirable Skills\nSuccessful candidates will have experience in some of the following areas:\nProfessional experience delivering software projects using interpreted or high-level languages.\nExperience building web applications, APIs, services, automation, native applications or internal tools.\nComfortable working across different parts of a system, from user interfaces through to backend services, integration points and deployment environments.\nAbility to understand requirements, make sensible technical decisions and deliver maintainable software.\nExperience working with existing codebases, including debugging, refactoring and adding new functionality.\nFamiliarity with modern software engineering practices such as code review, automated testing, continuous integration and version control.\nComfortable learning unfamiliar technologies, libraries or platforms when required by a project.\nStrong problem-solving skills and the ability to work effectively in small, technically focused teams.\nClear communication skills, including the ability to explain technical decisions and collaborate with colleagues or customers.\nThis vacancy is for experienced software engineers who enjoy delivering practical, maintainable software across a range of technologies and project types. It is well suited to engineers who are adaptable, delivery-focused, and comfortable working across both web and native development environments.\nWork Benefits\nPromotions are based on technical excellence and reviewed regularly.\n25 days holiday per year (with bank holidays on top), option to buy up to 5 days per year.\nLevel up with an extra day of holiday per year, up to an extra 5 days, starting from 2 years' service.\nWe offer financial support to cover HMRC allowable costs of relocating if you’re moving to the area.\nTraining and development opportunities to support your career aspirations\nO'Reilly books subscription which provides access to huge range of technical books\nRegular events including internal technical conferences, company socials and pizza-fuelled lunchtime seminars. \nFree seasonal fruit, tea, coffee, milk, squash and hot chocolate.\nHealth Benefits - Private medical including access to\nPrivate online GP, and a helpline to speak with various healthcare professionals.\nPhysiotherapists, osteopaths or chiropractors for muscle, bone, and joint pain.\nMental health - counselling, and specialist consultations and treatment with psychologists and cognitive behavioural therapists. \nAnnual Health assessment.\nFinancial Benefits\nA 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.\n8% company contribution to pension with no minimum requirement for employee contribution.\nDeath in Service cover of 4x base salary. \nLifestyle Benefits\nEnhanced 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.\nEnhanced cycle-to-work scheme including the ability to purchase a bike over £1,000 (e-bikes, specialist cycles and trikes allowed).","description_format":"text","description_chars":6539,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Information Security"],"lifecycle":[{"event":"open","at":"2026-10-11T12:24:39Z"}],"visa":[],"liveness":{"score":3,"band":"cold","label":"Long shot","p_open":1,"p_active":0.097,"p_room":0.28,"age_days":94,"expected_fill_days":25,"reasons":["conf:2","ghost","win:tail","crowd:"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/coretech-security-software-engineer","json_url":"https://alion.io/job/coretech-security-software-engineer.json","meta":{"generated_at":"2026-10-12T20:25:49Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":33147,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3854592},"rest":"https://alion.io/mcp/rest/get_company?id=3854592"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcoretech-security-software-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fcoretech-security-software-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fcoretech-security-software-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/coretech-security-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcoretech-security-software-engineer"}]}