Senior Software Engineer (Java) - Retail & Commercial Apps

Software Development Engineers (SDEs) are the creative minds developing the software applications that make life easier for customers. Responsible for the entire development and support process for a software programme. Your applications make previously complex tasks simple with the impact ranging from saving time, effort or money to re-defining normal 

• Using in-depth knowledge of at least one major programming language, the framework and the tool ecosystem to implement end-to-end systems without assistance. 

• Profiling and optimising code. 
• Producing test-driven features in a specific programming language and demonstrating you’re comfortable with the TDD cycle. 
• Applying understanding of cohesion and the SOLID principles to create well structured, maintainable software. 
• Applying understanding of threads, the threading model and concurrent programming. 
• Identifying patterns in code and refactoring the code towards them where it increases understanding and/or maintainability with minimal guidance. 

• Translating requirements into tasks & code. 
• Developing high-quality code that can lead to rapid delivery, ruthlessly pursuing continuous integration and delivery.  
• Committing code early and often, demonstrating your understanding of version control & branching strategies. 
• Automating everything by default. 
• Writing secure code by default. 

• Writing maintainable code and observing basic hygiene practices. 
• Demonstrating the importance of domaangularin model and coherently modeling a problem domain within a given context 
• Implementing relevant project instrumentation. 
• Following the best practices of BDD/TDD/Performance/Security/Smoke Testing. 
• Working effectively with product stakeholders to communicate and translate their needs into improvements in your product. 

• Leading group discussions on the design of particular areas and understanding the domain well enough to work with Product Managers to drive value. 
• Supporting production systems, resolving incidents and performing root cause analysis. 
• Debugging/finding complex problems and supporting/maintaining the software solution. 
• Sharing knowledge with the wider engineering community. 
• Mentoring and developing those around you. 

• Producing proof of concepts to evaluate new tools. 

Experience relevant for the job:

• 5+ years of experience as a Java backend developer. 
• Experience with Java 8+.
• Experience using SQL & NoSQL Databases.
• Experience with cloud platforms (e.g. AWS/Azure).
• Experience scaling systems. 
• Experience working with multiple software development methodologies including Scrum & Kanban.
• Experience with reactive programming is considered a plus.
• Experience with eCommerce and search systems would be a nice to have, but not necessary.

Skills relevant for the job: 

• Written and verbal English communication skills. 
• Problem solving, analysis and computational skills. 
• Customer focus. 
• Innovative approach to problem solving. 

We offer excellent benefits that help make Tesco a great place to work. These include but aren’t limited to:
• Annual bonus scheme where you can earn up to 3.5% of base salary
• Holiday starting at 25 days plus a personal day (plus 8 Bank holidays)
• On-site state of the art gym at our Welwyn Campus with discounted “Gympass” membership & free health checks via Nuffield Health
• Retirement savings plan - save between 4% and 7.5% and Tesco will match your contribution
• Life Assurance - 5 x contractual pay
• Share Schemes – Join our ‘Buy As You Earn’ & ‘Save As You Earn’ share schemes after 3 months service
• Colleague Clubcard (including a 2nd card for a household member) after 3 months service
• Colleague Discounts:
• 10% increasing to 15% after every pay day for a four day period, off most purchases at Tesco
• 10% off One Stop
• 10% off pay monthly & SIM only deals with Tesco Mobile
• 20% off all F&F purchases
• 20% off car, pet and home insurance at Tesco bank. T&C’s apply
• 25% off Tesco Café
• 50% off complete glasses purchases & free eye tests (other offers available) at Vision Express
• 50% off health checks at Tesco Pharmacy
• An exclusive deals and discounts website saving you money on everyday purchases, treats for the family, eating out and utility bills for the home
• Cycle to work scheme
• Shuttle Bus Service to/from Hatfield & Welwyn Garden City Station to Welwyn Campus & Hatfield Offices
• Opportunities to get on - take advantage of our ongoing learning opportunities and award-winning training, to help you achieve the job and career you want
• Our Employee Assistance Programme helps you deal with life’s challenges
• Financial wellness - Tesco has partnered with experts to help you make the most of your money
• Get involved in a range of fundraising activities with our long-term charity partners

Our vision here at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is ‘Serving Britain's shoppers a little better every day’. Our business was built with a simple mission – to be the champion for customers, helping them to enjoy a better quality of life and an easier way of living. This hasn't changed. Customers want great products at great value which they can buy easily and it's our job to deliver this in the right way for them. In the UK, we serve some 66 shoppers every second, so it's our goal to ensure every one of those customers experiences just a little better service on each visit.
At Tesco, inclusion means that Everyone’s Welcome. Everyone is treated fairly and with respect; by valuing individuality and uniqueness we create a sense of belonging.
Diversity and inclusion have always been at the heart of Tesco. It is embedded in our values: we treat people how they want to be treated. We always want our colleagues to feel they can be themselves at work and we are committed to helping them be at their best.
Across the Tesco group we are building an inclusive workplace, a place to actively celebrate the cultures, personalities and preferences of our colleagues – who in turn help to build the success of our business and reflect the diversity of the communities we serve.