Centrica • United Kingdom

Senior AWS Developer

Employment type:  Full time


A little flex 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.

  • 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 OPP, Node.js, Typescript, Terraform and optionally React JS

  • 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.


  • 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.


At Centrica we embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. To build a more sustainable future, we need the best team – a team with a diverse mix of people and skills, where everyone feels welcome and able to succeed. We are dedicated in helping to close the diversity gap and would love to see more females, people of colour and LGBTQ+ employees, as well as those from a variety of cultures and ethnicity to veterans and the differently abled. Supporting diversity and inclusion is a big part of who we are, we are not looking for people to fit into our culture but to add to it!

PLEASE APPLY ONLINE by hitting the 'Apply' button.

Applications will ONLY be accepted via the ‘Apply’ button.

This role is being handled by the Centrica recruitment team and NO agency contact is required.

Company benefits

Adoption leave
Open to part-time employees
Enhanced sick days
Flexible working week
Enhanced sick pay
Gym membership
Health insurance
Mental health platform access
Compassionate leave
Dental coverage
Fertility treatment leave
Season ticket loan
Buy or sell annual leave
Optional unpaid leave
Shared parental leave
Enhanced maternity leave
Carer’s leave
Enhanced paternity leave
Pregnancy loss leave
Cycle to work scheme
Pension match/increase
Equity packages
Life insurance
Annual pay rises
Share options
Financial coaching
Employee discounts
Volunteer days
Company car
Employees are very happy with their working location freedom
Employees are very happy with the flexibility in the hours they work
Employees are very happy with the benefits their company offers
Work-life balance
Employees feel that they can switch off quite easily from work
Role modelling
Employees feel that flexible working is part of the culture
Employees feel they have complete autonomy over getting their work done

Additional employee ratings
(these do not contribute to the FlexScore®)

Employees feel that the diversity is good and there are continued efforts to improve it
Employees feel like the company culture is brilliantly inclusive and equitable
Employees feel like it is a really great environment to work in
Employees feel very excited about and aligned with the company mission
Employees feel that their salary is good and matches the value they bring

Working at Centrica

Company employees


Gender diversity (male:female)


Office locations

Windsor, London, Cardiff, Leicester, Glasgow, Edinburgh, Manchester, Dublin, Stockport, Staines, Hampton, Aberdeen, Barrow, Hull

Hiring Countries




United Kingdom

Awards & Achievements

2nd – Large companies

2nd – Large companies

Flexa100 2024
3rd – Consumer Goods

3rd – Consumer Goods

Industry awards 2023

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