Base Career helps you apply smarter for this job.
Key skills for this role
Design, implement, and maintain features across varied languages, frameworks, and internal codebases.
Add AI capabilities to products: model/API integration, prompt and context design, retrieval, orchestration, and the surrounding infrastructure (data handling, caching, error management, cost and latency controls).
Build evaluation, automated testing, and guardrails to ensure AI behaviour is measurable and stable.
Use and extend AI tooling and agentic workflows to improve development speed, test coverage, documentation, and reduce manual effort.
Prototype quickly to de‑risk ambiguous or complex problems.
Ramp up fast in unfamiliar systems—map key components, ask good questions, and contribute early.
Work as a guest engineer in other teams’ codebases, aligning on scope, following conventions, and delivering clean, maintainable handovers.
Share knowledge, patterns, reusable tooling, and guidance to improve engineering practices across the organization.
Uphold high standards for quality, security, logging, testing, failure‑mode thinking, and responsible AI data handling.
Contribute to CI/CD, automation, and developer tools where they accelerate project delivery.
Design, implement, and maintain features across varied languages, frameworks, and internal codebases.
Add AI capabilities to products: model/API integration, prompt and context design, retrieval, orchestration, and the surrounding infrastructure (data handling, caching, error management, cost and latency controls).
Skip the repetitive application forms
Install the Base Career Chrome Extension and autofill job applications across major job boards with your profile.
Trusted by over 500,000 job seekers on Base Career
More from this employer
, GBR
Herndon, USA
Herndon, USA
Herndon, USA
Herndon, USA
Herndon, USA
London, GBR
London, GBR
Build evaluation, automated testing, and guardrails to ensure AI behaviour is measurable and stable.
Use and extend AI tooling and agentic workflows to improve development speed, test coverage, documentation, and reduce manual effort.
Prototype quickly to de‑risk ambiguous or complex problems.
Ramp up fast in unfamiliar systems—map key components, ask good questions, and contribute early.
Work as a guest engineer in other teams’ codebases, aligning on scope, following conventions, and delivering clean, maintainable handovers.
Share knowledge, patterns, reusable tooling, and guidance to improve engineering practices across the organization.
Uphold high standards for quality, security, logging, testing, failure‑mode thinking, and responsible AI data handling.
Contribute to CI/CD, automation, and developer tools where they accelerate project delivery.
AI/LLM integration experience (APIs, RAG, tool calling, agent frameworks, hosted or local inference).
Background improving legacy systems through testing, refactoring, and reducing technical debt.
Breadth across desktop, mobile, backend, or systems software.
CI/CD experience (GitLab, Docker, Kubernetes) and Python for automation.
Experience or interest in security‑sensitive environments.
Awareness of usability and user experience.
Empathy, clear communication, and ability to disagree constructively.
A reasonable estimate of the base salary range for this role is:
The actual salary offered may vary within the range based on a candidates' unique experience, locale, and business needs. In addition to base salary and either bonus or commission, Everfox offers a generous benefits package including competitive annual leave, pension match, PMI, dental, health cash plan, income protection, in a hybrid work environment. Our Talent Acquisition team will provide specific information regarding salary and benefits offerings.
________________________________________________________________
Don’t meet every single qualification? Studies show people are hesitant to apply if they don’t meet all requirements listed in a job posting. If there is something slightly different about your previous experience, but it otherwise aligns and you’re excited about this role, we encourage you to apply. You could be a great candidate for this or other roles on our team.
Everfox is an equal employment opportunity employer and complies with all applicable federal, state, and local laws prohibiting discrimination. Everfox does not discriminate against any employee or applicant based on race, color, religion, sex, age, national origin, disability, veteran status, marital status, medical condition, or any other category protected by applicable law. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access the Company’s career webpage as a result of your disability. You may request reasonable accommodations by sending an email to humanresources@everfox.com .
Applicants must have the right to work in the location to which you have applied.
Private high-assurance cybersecurity company securing government and enterprise data across cross-domain, threat-protection, and insider-risk environments.
Visit company websiteJobs and hiring trendsGBP 76900-123500 yearly / year
Full-time
Senior · 8+ years experience
Hybrid
Apply faster on company sites with our extension.