Senior AWS Developer

  • Job Reference: R0055038
  • Date Posted: 20 March 2024
  • Employer: Centrica
  • Location: Windsor, Berkshire
  • Salary: On Application
  • Bonus/Benefits: Bonus, pension, car allowance, Benefits
  • Sector: Information Technology (IT)
  • Job Type: Permanent
  • Work Hours: Full Time

Job Description

We are Centrica! We're so much more than an energy company. We're a family of brands revolutionising a cleaner, greener future. Working here is #MoreThanACareer - we're powered by purpose. Together we can make an impact that will truly change tomorrow. Whether you're developing cutting-edge green tech, helping customers on the front line or simplifying operations behind the scenes.

Your work here isn't just a job - it's a mission. We all play a vital role in energising a greener, fairer future.

An opportunity to play your part

Within the British Gas Energy team, we are seeking an experienced Senior AWS Developer to join our dynamic and innovative team.

The ideal candidate will possess a deep understanding of Amazon Web Services (AWS) and have a proven track record in developing scalable, secure, and efficient cloud-based solutions. As a Senior AWS Developer, you will play a key role in designing, implementing, and maintaining AWS-based applications, ensuring optimal performance and reliability.

Location: We have a hybrid-work environment, where you will be predominantly home-based but required to Park House office occasionally

We have tailored our well-being & benefits package around our employees as follows:

  • Competitive salary and bonus potential

  • Employee Energy Allowance at 15% of the government price cap

  • Pension scheme

  • Company Funded Healthcare Plan

  • 25 days holiday allowance, plus public holidays, and the option to buy up to 5 additional days

  • Excellent range of flexible benefits, including technology vouchers, electric car lease scheme & travel insurance


  • Design, architect, and implement robust and scalable AWS solutions based on business requirements.

  • Implement best practices for code reviews, automated testing, and continuous integration/deployment (CI/CD)

  • Utilize Infrastructure as Code tools (e.g., AWS CloudFormation, Terraform) to automate the provisioning and management of infrastructure resources

  • Maintain and enhance existing IaC scripts for infrastructure deployment

  • Implement and enforce security best practices in AWS environments

  • Set up monitoring, logging, and alerting solutions to proactively identify and address performance issues

  • Mentor junior developers and provide technical guidance and expertise

  • Create and maintain comprehensive technical documentation for AWS solutions, including architecture diagrams, deployment guides, and best practice documentation

What we need from you

  • In-depth knowledge of AWS services, including but not limited to EC2, S3, RDS, Lambda, Kinesis Data Stream, Kinesis Firehose, API Gateway and IAM.

  • Strong programming skills in languages such as Python, Java, or Node.js, Typescript, Terraform

  • Experience in developing scalable, secure, and efficient cloud-based solutions

  • Experience with containerization and orchestration tools.

  • Solid understanding of networking principles and security best practices in AWS.

  • Familiarity with DevOps practices and tools.


  • Willing to continuously learn and improve; challenging the status quo where appropriately

  • Good verbal and written communication skills and a team player

  • Excellent problem-solving skills and the ability to work unsupervised

  • Approachable and passionate

  • Focus and strong attention to detail

  • Open-minded about using and discovering new tools and technologies

  • Care about user experience and working with other developers

We are proud to be recognised as a disability-confident employer. Our customers come from a variety of different backgrounds, and so do we. We hire great people from all walks of life, not just because it's the right thing to do, but because it makes our company stronger. We will continue championing inclusivity while investing in our local communities to create a better, more sustainable world for everyone. We are incredibly proud to have been recognised by The Times for being one of the Top 50 Employers for Women.

Our people are the beating heart of our business. We are incredibly proud of our commitment to being FlexFirst. From childcare to furry friends, we listened to our people and understood that they work best when they are comfortable and have a flexible working model that suits their individual needs.