Principal Software Development Engineer - Quote API

Tesco UK; Welwyn Garden City, Greater London; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A leading grocery and technology company is looking for a full-time developer to work on transactional APIs that support their retail platform. This role is based in Welwyn Garden City with a hybrid work model, allowing flexibility in your schedule. You will utilize your expertise in programming languages to tackle complex systems and support production applications. The ideal candidate should possess strong problem-solving skills and a high degree of emotional intelligence to foster collaboration. Enjoy competitive benefits, including a generous annual bonus and healthcare options.

Benefits

Annual bonus scheme up to 45%

Car allowance of £7,320

25 days holiday plus personal day

Private medical insurance

Retirement savings plan with employer match

Life Assurance at 5x pay

Maternity and paternity leave

Flexible working options

24/7 virtual GP service

Qualifications

• Experience designing and managing complex system landscapes.
• Background in large engineering organizations.
• Technical authority across multiple domains and technologies.
• Experience guiding large work programs.

Responsibilities

• Create elegant solutions using various programming languages.
• Lead discussions on design and model multiple domains.
• Translate product needs into code and high-quality task delivery.
• Support production systems and resolve incidents.

Skills

Multiple programming languages and frameworks

Designing distributed systems

Problem-solving and analytical skills

Emotional intelligence

Job description

Tesco UK • Welwyn Garden City • Hybrid • Full-Time • Apply by 29-May-2025 About the role The transactional APIs are a collection of services that support the retail platform, which powers the shopping for all of the customers in Tesco. They are capable of handling transactions across all of Tesco’s channels and is of central importance to Tesco’s strategic plans to better serve 28 million shoppers each week in the UK, and more around the globe. The impact of the team’s work is visible through Tesco's tills, websites and mobile apps - it is rare to find a job with this level of challenge and impact. CAP theorem is a regular and very practical topic of conversation within the teams. The services are built with Java, , Spring Boot, Micronaut, Couchbase and Kafka, among other technologies. They run on AWS & Azure with fully automated testing in continuous deployment pipelines. The teams work according to Agile principles, adapting Kanban and other techniques as appropriate to succeed. The teams are supportive of each other and highly collaborative both internally and externally, with pairing a common occurrence where all code is reviewed via Github. If that sounds exciting then we'd love to hear from you!

• Annual bonus scheme of up to 45% of base salary
• Car allowance of £7,320 per annum Holiday starting at 25 days plus a personal day (plus Bank holidays)
• Buy holiday salary sacrifice scheme (for salaried roles)
• Private medical insurance
• Retirement savings plan - save between 6% - 10% and Tesco will contribute 1.5 times this amount
• Life Assurance - 5 x contractual pay
• 26 weeks maternity and adoption leave (after 1 years’ service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 4 weeks fully paid paternity leave
• The right to request flexible working from your first day with us
• Free 24 / 7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing
• A Colleague Clubcard for you & a family member (after 3 months of service), giving you access to lots of discounts in-store & online Access to our colleague networks providing a space for colleagues to come together from a range of backgrounds.

You will be responsible for

• Apply your in-depth knowledge of multiple programming languages, associated frameworks, and the tool ecosystem to create elegant solutions to problems.
• Adopt new languages and new paradigms and produce proof of concepts to evaluate new tools, applying them to the problem domain where they deliver significant benefit.
• Lead group discussions on design and model multiple domains, articulating contexts and boundaries and the rationale behind them, shaping the wider application landscape.
• Work with product teams to understand and translate their needs into improvements in your product, translating requirements into tasks and code and developing high-quality code that can lead to rapid delivery.
• Support production systems, resolving incidents, and performing root cause analysis.
• Share knowledge with the wider engineering community, mentoring and developing those around you to improve the organisation.

You will need

• Demonstrated experience designing, developing and running whole system landscapes.
• Experience across large engineering organisations.
• Experience acting as a technical authority across multiple domains and multiple technologies. Experience proposing architectural patterns for adoption by an organisation.
• Experience guiding large programmes of work.
• Experience driving the adoption of inner sourcing initiatives.
• A track record of delivering large-scale, well architected web solutions at pace
• You drive and implement best practice improvements
• You confidently and competently impart knowledge to users, customers, and other team members
• Strong understanding of running production applications.
• Designing and building distributed systems, for scalability, availability and performance
• Testing everything, automating everything
• The relevant skills;
• A polyglot set of languages, frameworks and technologies on which you can draw from your background of commercial experience with.
• A high degree of emotional intelligence; you are aware of your own emotions, how you appear and can self-reflect on your actions. You can empathise with others and modify your behaviour and style accordingly.
• Problem-solving, analysis and computational skills; you are comfortable crafting systems and reasoning about them.
• When solving problems, you take a detailed and logical approach to solving them and you retain ownership through to resolution.
• Customer focus; you can find the right balance between outcome delivery and technical excellence and place the needs of our customers above those of you and the team.

About us

You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues.

At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support.

We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. If you need support with your application, for more information. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying.