Overview
Flexible working arrangements are supported, including term‑time and part‑time hours (minimum three days per week), compressed patterns and flexible start and finish times. Due to the sensitive nature of the role, remote, hybrid or home working is not available.
Responsibilities
As a Senior Software Engineer you will shape the future of our products, platforms and technical capability, exploring emerging technologies, prototyping rapidly and evolving solutions into secure, compliant, production‑ready systems. You will work within the Essential Technology team, contributing to organisational modernisation and tackling challenging engineering problems. Your day‑to‑day work will involve cloud‑native architectures, Docker and Kubernetes container platforms, hyperscale Amazon Web Services, the Model Context Protocol and modern generative AI models. You will build platforms that analyse complex data at scale, create compliance services, or develop internal tools that improve developer experience, all designed to be secure by default, resilient, observable and durable. You will lead and mentor through tasking, run stand‑ups, coordinate sprints, break down work and support junior engineers while collaborating with senior stakeholders on feasibility, constraints and trade‑offs.
Qualifications
- Lead software engineering experience within an agile environment, shaping architecture, setting technical direction and owning delivery.
- Proficient in at least one modern language: Java, C#, Python or JavaScript.
- Strong knowledge of contemporary architectures – microservices, API‑first design, distributed systems – and essential experience with Docker and Kubernetes.
- Demonstrated ability to build observable, resilient, secure‑by‑default systems and apply secure design patterns.
- Experience building secure, compliant, production‑ready solutions with rapid prototyping and evolving to mature components.
- Excellent communication and influencing skills, able to articulate trade‑offs and guide junior engineers.
- Collaboration with cross‑functional teams: Product, Design, Data Science, Machine Learning and Cyber Security.
- Capacity to work with loose briefs, shape ambiguity into clear technical direction, and balance innovation with compliance, cost and maintainability.
Compensation & Benefits
- Salary: £79,969 annually (starting salary), with possible enhanced salary for exceptional ability.
- Skills‑related pay and periodic review.
- 25 days annual leave (rising to 30 after 5 years) and an additional 10.5 days public and privilege holidays.
- Employee performance scheme recognition.
- Interest‑free season ticket loan.
- Dedicated development budget.
- Excellent pension scheme.
- Cycle‑to‑work scheme.
- On‑site facilities such as gym, restaurant and coffee bars (at some locations).
- Paid parental and adoption leave.
Eligibility Requirements
- British citizen or dual British nationality.
- Highest security clearance – Developed Vetting (DV). The DV process is mandatory for all UK Intelligence Community roles.
- Requirement to be eligible for the stringent five‑level drug policy; declaration of prior drug use is required at the relevant stage.
- Based in Central London, requiring residence within a commutable distance; relocation costs are not provided.
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