Software Development Engineer II

As a backend development Engineer; you ll be working in an agile team of industry leading engineers to define and develop Tesco s xAPI (Experience API) that powers Tesco s various shopping experiences i.e.; tesco.com; the mobile shop application; store and other internal facing applications. You ll be a passionate; pragmatic Engineer with an inquisitive mind who is motivated to make change for the better and most importantly put our customer first.
You ll enjoy working as part of a team; liaise with product and program managers to understand requirements and build new software or extend existing software. You are a keen problem solver with the expertise and experience building extensible; maintainable; highly available; scalable; performant and observable quality software; Comfortable with modern engineering practices and backend development technologies; you ll use innovation to improve the customer experience and efficiency of engineering teams. The solutions that you will be responsible for will have a global reach; impacting millions of customers.
Some of the tech we are using at scale: Javascript; Typescript; Node.JS; GraphQL; REST; Kafka; Azure Cloud; Redis; Varnish Cache; Apollo Federation; Docker; Kubernetes etc.

Job Responsibilities

- Use your in-depth knowledge of JavaScript; Typescript; Node.JS; cloud and the backend services ecosystem to develop; and deploy scalable backend systems.
- Work with product managers to understand business/product requirements.
- Translate requirements into tasks & code.
- Commit code early and often; demonstrating understanding of version control & branching strategies.
- Automate everything by default.
- Write secure code by default.
- Write maintainable code and observe basic hygiene practices
- Implement relevant project instrumentation.
- Profile and optimise code.
- Apply understanding of cohesion and the SOLID principles to create well structured; maintainable software.
- Identify patterns in code and refactor the code towards them where it increases understanding and/or maintainability with minimal guidance.
- Produce test driven features in a specific programming language and demonstrate familiarity with the TDD development.
- Follow the best practices of continuous BDD / TDD / Performance / Security / Smoke testing.
- Support production systems; resolve incidents and perform root cause analysis.
- Debug/find complex problems and support/maintain the software solution.
- Share knowledge with the wider engineering community.
- Mentor and develop others around you.
- Produce proof of concepts to evaluate new tools.

You will need

We are looking for people who have a passion for Technology. You will demonstrate experience of different platforms and technologies. We expect to see some or all of the following:
- 6+ Years professional experience as a Backend Software Developer.
- At least 3 years of experience in backend development using Javascript; Typescript; Node.JS and related backend technologies; frameworks.
- Exposure to a variety of JavaScript frameworks and libraries such as: Next.JS; React.JS and testing using Jest; Mocha.JS; Cucumber etc.
- Experience of using Node.js to create high traffic applications using Express.js; Sails; Koa or similar.
- Knowledge of microservices development and deployment in the cloud i.e. Azure/AWS/GCP cloud.
- Knowledge of virtualization; containerization and container orchestration technologies like Docker; Kubernetes etc. is a plus.
- Experience with using and building REST API services.
- Experience with usage of GraphQL; building GraphQL servers and GraphQL Federation technologies like Apollo Federation is preferred.
- Knowledge of distributed messaging systems like Kafka; RabbitMQ etc. is preferred.
- Knowledge of distributed caching technologies like Redis.
- A desire to write readable; maintainable; modular and extendable code.
- Exposure to the DevOps model.
- Experience in Lean and Agile environments and understanding of principles behind methodologies such as: BDD; ATDD and TDD.

Exposure to a variety of JavaScript frameworks and libraries such as: Next.JS; React.JS and testing using Jest; Mocha.JS; Cucumber etc.
Experience of using Node.js to create high traffic applications using Express.js; Sails; Koa or similar.
Knowledge of microservices development and deployment in the cloud i.e. Azure/AWS/GCP cloud.
Knowledge of virtualization; containerization and container orchestration technologies like Docker; Kubernetes etc. is a plus.
Experience with using and building REST API services.
Experience with usage of GraphQL; building GraphQL servers and GraphQL Federation technologies like Apollo Federation is preferred.
Knowledge of distributed messaging systems like Kafka; RabbitMQ etc. is preferred.
Knowledge of distributed caching technologies like Redis.
A desire to write readable; maintainable; modular and extendable code.