Senior Software Engineer – Groceries (Online & Customer) We are looking for a Senior Software Engineer to join Asda's Online & Customer department, working on our Groceries website and app. You will provide technical leadership and engineering oversight within your team to enable the delivery of high-quality, scalable, secure products. This position requires attendance at Asda House in Leeds for a minimum of three days per week. We welcome applications from candidates seeking part‑time hours, flexible working arrangements, or job‑share opportunities. Responsibilities

Technical Design & Delivery

Design and deliver high‑quality technical solutions that align with agreed architectural standards and patterns. Work closely with Product and Architects to translate business requirements into well‑designed, scalable and performant solutions. Lead by example through hands‑on contribution to code, reviews, testing and production support where required.

Leadership & Mentorship

Act as the senior technical authority within squads, providing direction, guidance and support to engineers. Mentor and coach Associate and Apprentice engineers to raise overall capability, improve engineering practices, and support career development. Balance hands‑on engineering with leadership responsibilities to ensure consistent, high‑quality delivery across teams. Support Engineering Managers with technical input into planning, risk management and delivery decisions.

Governance, Best Practices & Quality

Champion engineering best practices, including code quality, testing, CI/CD, security and operational readiness. Promote a DevSecOps mindset, encouraging ownership, autonomy and accountability for the full software lifecycle. Ensure quality, reliability and security are built into solutions from design through to production.

Collaboration & Community

Actively contribute to engineering and agile communities of practice, helping to shape and embed shared standards, patterns and principles. Collaborate across teams and domains to reduce duplication, encourage reuse and improve consistency. Share knowledge and learning to strengthen the wider engineering organisation.

Innovation & Strategy

Evaluate and recommend tools, technologies and practices that improve engineering effectiveness and developer experience. Drive continuous improvement in delivery, quality and operational maturity. Stay current with industry trends and apply relevant insights pragmatically within the organisation.

Hybrid working model – a minimum of three days per week in the office, with the possibility of additional days for meetings or collaboration as required.

Qualifications

Experience building scalable solutions according to software architecture and design principles. Strong knowledge of software development best practices, including code reviews, testing, and CI/CD pipelines. Excellent communication skills, with the ability to convey complex technical concepts to both technical and non‑technical stakeholders. Proven experience leading software development teams in the delivery of complex projects. Experience with distributed systems, microservices architecture, and cloud‑based solutions.

Benefits

Discretionary company bonus Company pension up to 7% matched Company car allowance of £5,700 15% colleague discount in store and online Free access to wellbeing services such as Stream, 24/7 virtual GP, counselling, health and dental cash plans and a 24/7 employee assistance helpline, alongside discounts across a range of services and activities, from airport parking to theme parks and cinemas. Asda Allies Inclusion Network – supporting inclusion and celebrating differences. Excellent parental leave policies, including maternity & adoption leave, paternity leave, shared parental leave, neonatal care leave, and support for those doing fertility treatments.

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