Fullstack Engineer (Node/ React/ Typescript/ Lambda/ Snowflake)

Sainsbury's; London; On-site; GBP 50,000 - 90,000; Full time

Job summary

An established industry player is seeking a Full Stack Engineer to join their dynamic team in transforming marketing technology. You'll have the opportunity to build web-based applications that leverage rich customer data, enhancing the shopping experience for millions. With a commitment to innovation, you'll work with cutting-edge technologies and methodologies, fostering a culture of curiosity and experimentation. This role offers a chance to contribute to impactful solutions while enjoying benefits like flexible working arrangements, colleague discounts, and opportunities for professional growth. If you're passionate about technology and eager to make a difference, this is the perfect opportunity for you.

Benefits

Colleague discounts

Holiday allowance

Bonus schemes

Pension plans

Health plans

Flexible working arrangements

Qualifications

• Experience in building client-side web applications with React.
• Proficiency in TypeScript and familiarity with Node.js.

Responsibilities

• Develop tools and applications with clean, maintainable code.
• Collaborate with internal teams and third-party vendors.

Skills

React

TypeScript

HTML5

CSS3

SASS

Node.js

GraphQL

REST APIs

AWS Lambda

DevOps practices

Tools

Docker

AWS

Azure Functions

Google Functions

CloudFormation

Terraform

Job description

We're a multi-channel, multi-brand business serving millions of customers a day, with the UK's largest loyalty scheme and an ever-evolving set of digital platforms. All of this equals over 1.2 billion transactions each year, presenting a volume, depth, and complexity of data that few can match.

We believe we have the most exciting data set in the country. Using insights gained, we build scalable, high-performance products with cutting-edge technology that provide our customers with an exceptional shopping experience, such as our award-winning SmartShop app. In an inclusive environment, you'll have the space to be curious, experiment, and solve real-world challenges. You'll see your creations used by millions across the UK.

As an Engineer (Full Stack), you'll be part of an engineering squad, adhering to architectural and engineering principles, operating frameworks, and utilizing new and improved tech solutions. Your technical skills, curiosity, and experimentation will help deliver outcomes that support our customers.

We use various technologies and value your willingness to learn new tools and techniques. Be yourself—analytical, curious, and unafraid to challenge the status quo. Strive to improve team processes and contribute to the engineering community.

More about the role

Our team is transforming marketing technology at Sainsbury's, supporting a multi-channel, multi-brand marketing strategy following the acquisition of Nectar and Argos. We build products and applications that enable marketing and Nectar loyalty teams to plan targeted campaigns using rich customer data.

Our goal is to simplify and modernize the marketing technology estate, creating web-based applications used across all brands to deliver strategic value. We seek an experienced Full Stack Engineer to drive this mission.

You will develop tools and applications with clean, maintainable code, owning and supporting features throughout their lifecycle. You will participate in team ceremonies, collaborate with internal tech teams and third-party vendors, and suggest improvements to achieve business goals.

More about you

• Experience building client-side web applications using React and Hooks.
• Proficiency in TypeScript, HTML5, CSS3, and SASS.
• Passionate about TypeScript, with experience in Node.js, GraphQL, REST APIs, or event-driven integrations.
• Experience with AWS Lambda + Serverless, Azure Functions, Google Functions, or containerization with Docker, ECS, Kubernetes.
• Knowledge of various databases, including NoSQL (MongoDB, DynamoDB) and relational (PostgreSQL, MySQL).
• Experience defining infrastructure as code with CloudFormation, CDK, or Terraform.
• Understanding of DevOps practices, supporting applications in production, and using monitoring tools.
• Team-oriented, with good communication skills and mentoring experience.

Benefits

Opportunities for growth, training, and development, along with benefits such as colleague discounts, holiday allowance, bonus schemes, pension plans, and special offers on various services. We offer flexible working arrangements to support work-life balance.

Responsibilities

Contribute to a modern software engineering environment, with investments in standards, principles, and innovative technologies like AI. Embrace Agile, Scrum, and XP methodologies to deliver impactful solutions.

Qualifications

We are committed to inclusivity and support your development. Benefits include colleague discounts, pension schemes, bonuses, holiday allowances, health plans, and more. We also provide leave benefits such as maternity, paternity, and adoption leave, along with various employee support programs.