Zaizi

Head of Engineering

Hammersmith, United Kingdom
Full-time
Posted Oct 8, 2026

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Skills

CI/CD
Large Language Models
Leadership

Job description

Engineering Leadership & Technical Excellence

Own Arran’s engineering strategy, standards and technical assurance across client engagements. Champion secure, scalable and maintainable services using modern cloud, DevSecOps and software engineering practices.

Build our AI Engineering Capability

Develop Arran’s practical capability to build and integrate AI into production government services. Establish engineering approaches for technologies such as LLMs, RAG and agentic systems, ensuring solutions address security, privacy, responsible AI, operational resilience and government constraints.

Government Digital & Technical Assurance

Ensure engineering aligns with the GDS Service Standard, Technology Code of Practice, NCSC Secure by Design and relevant accessibility and data protection requirements. Work with architects and client technical authorities to provide effective technical governance and assurance.

People & Capability

Act as Head of Profession for Engineering, building and developing high-performing engineers and technical leaders. Identify future capability needs and create opportunities for people to develop practical AI and emerging technology experience through delivery, accelerators and learning.

Client Leadership & Consultancy

Act as a trusted senior technical advisor to Central Government clients, translating complex problems into pragmatic technical approaches. Challenge assumptions, communicate trade-offs and represent Zaizi in senior client and technical governance discussions.

Growth, Propositions & Bids

Shape technical propositions, solutions, teams and estimates for strategically important opportunities. Turn successful delivery into credible, reusable capabilities and propositions that strengthen Arran’s position in the government market.

Club Leadership

Share accountability with the Club Executive and Heads of Product and Delivery for Arran’s overall performance. Help protect and grow clients, build capability through delivery and balance client outcomes, people, quality and commercial performance.

Requirements

You will bring:

•Significant engineering leadership experience across complex digital services, ideally within UK Central Government or another regulated environment.

•A strong software engineering background and sufficient technical depth to command the confidence of senior engineers, architects and client technical leaders.

•Experience leading multiple engineering teams rather than only a single programme or product.

•Strong understanding of modern cloud engineering, DevSecOps, CI/CD, security, architecture and operational practices.

•Experience with GDS-style multidisciplinary delivery and an understanding of the Service Standard and Technology Code of Practice.

•Strong understanding of security and privacy by design.

•Evidence of developing engineering capability through coaching, mentoring, standards and communities of practice.

•Strong consultancy skills and the ability to operate credibly with senior government stakeholders.

•Commercial awareness, including experience shaping work, estimating delivery and contributing to bids or proposals.

•The ability to balance technical quality, user outcomes, delivery constraints and commercial reality.

You do not need to be an AI researcher. We are looking for an engineering leader who understands how to turn emerging technology into production-grade services.

Benefits

Compensation

•Competitive Pay: Salaries reviewed annually to ensure they reflect your performance and market value.

•Loyalty Pension: We invest in your future. Starting at a 5% employer contribution, we increase this by 0.5% every year after your third anniversary, up to a maximum of 8% .

•Protection: Comprehensive Group Life Assurance for peace of mind.

Purpose & Culture

•Real Impact: Work on mission-critical projects that secure and improve the UK's digital infrastructure.

•Autonomy: A culture that empowers you to make decisions, prototype rapidly, and iterate towards success.

•Service & Community: We support those who serve. 10 paid days for Reservist Military Service.

Work / Life Balance

•Time Off: 25 days annual leave + Bank Holidays, with the flexibility to Buy/Sell additional days to suit your lifestyle.

•Giving back: 2 paid volunteering days per year.

Development & Growth

•Master Your Craft: Fully funded professional certifications (AWS, GCP, Agile, etc.) supported by 5 days paid study leave .

•Expand Your Horizons: An additional £500 annual "Personal Choice" fund to learn whatever inspires you—work-related or not.

•Support: Access to 1-2-1 professional coaching and team training to accelerate your career.

Health & Balance

•Premium Health: BUPA Private Medical Insurance

•Flexibility: Genuine hybrid working with a WFH equipment allowance to perfect your home setup.

•Wellbeing: Cycle to Work scheme and a commitment to sustainable, healthy working practices.