Senior Software Engineer – Cyber (Java, Spring, AWS)

Xylem; Hounslow; On-site; GBP 75,000 - 110,000; Full time

Benefits offered by this job

The Sky Q package

Sky Glass access

Generous pension

Private healthcare

Discounted mobile & broadband

Sky VIP rewards

Job summary

Sky is seeking a security-focused software engineer to design, develop, and maintain cloud-native applications that address complex cybersecurity challenges. You’ll work across the full SDLC, applying secure coding practices, and contribute to architecture discussions with internal stakeholders.

You’ll bring strong Java and Spring, AWS Serverless, and experience with OAuth2/OIDC, PKI, and crypto libraries. The role sits in Sky’s Cyber Security team, with hybrid working between Osterley and Brick

Qualifications

• Strong problem-solving and system design for cloud-native software.
• Experience building secure APIs and web apps on AWS.
• Production experience with highly available services.

Responsibilities

• Design, develop, and maintain high-quality software products.
• Build security-critical applications with secure coding practices.
• Support full SDLC, including production support and releases.
• Produce clear technical documentation and evaluations.
• Apply engineering best practices for scalable, reliable solutions.
• Participate in architectural discussions and explain decisions.

Skills

Java & Spring

AWS Serverless

Angular

NodeJS

OIDC/SAML/OAuth2

PKI / Crypto

OpenSSL / Bouncy Castle

Cloud security

Tools

AWS Lambda

DynamoDB

ECS

Aurora

OpenSSL

Bouncy Castle

Job description

Location for this position is flexible, we are accepting candidates who are able to work 2 days a week onsite in Osterley, or Livingston office.

We believe in better. And we make it happen.

Better content. Better products. And better careers.

Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and innovate.

We turn big ideas into the products, content and services millions of people love.

And we do it all right here at Sky.

What you’ll do

• Design, develop, and maintain high-quality software products that solve complex cybersecurity and trust sensitive challenges.
• Build and enhance security-critical applications, applying secure coding practices, threat awareness, and defense-in-depth principles.
• Support the full software development lifecycle, including feature development, customization of existing systems, production support, and release rollouts.
• Produce clear, accurate technical documentation such as software designs, technical requirements, evaluation plans, and test results.
• Apply sound engineering methodologies and best practices to deliver scalable, reliable, and maintainable solutions.
• Participate in architectural and design discussions, and clearly articulate technical decisions to internal stakeholders.

What you’ll bring

• Strong problem-solving and system design skills to build mission critical cloud-native software products
• Advanced proficiency in software development in Java and Spring Framework, developing secure APIs and Web Applications on AWS using Serverless architecture.
• Demonstrated success operating and supporting software products or large-scale, highly available applications in production.
• Experience working on AWS Lambda, Dynamo DB, ECS and Aurora
• Experience building software using Agile methodologies and rapid software development.
• Experience working with OIDC, SAML, or OAuth2 authorization patterns to secure APIs
• Experience developing applications using Angular and NodeJS
• Experience in Java Cryptography Extensions, OpenSSL, Bouncy Castle libs
• Prior experience or knowledge of PKI systems, or Secrets Management products.

Team overview

Cyber Security

Our products, platforms and technologies are constantly evolving that’s why keeping Sky safe from cyber-attacks is one of our top priorities. Our Cyber Security team helps the business grow while protecting our customers, colleagues and partners from increasingly sophisticated cyber threats. Our team includes Cyber Fusion Centre, Security Services, Risk and Compliance, Programme Delivery and Business Security, and we work across the UK, Italy and Germany. Join us and you’ll get involved in tackling challenges and future threats in an ever-changing cyber landscape.

The rewards

There’s one thing people can’t stop talking about when it comes to #LifeAtSky : the perks. Here’s a taster:

• Sky Q, for the TV you love all in one place
• The magic of Sky Glass at an exclusive rate
• A generous pension package
• Private healthcare
• Discounted mobile and broadband
• A wide range of Sky VIP rewards and experiences

Inclusion & how you’ll work

We are a Disability Confident Employer, and welcome and encourage applications from all candidates. We will look to ensure a fair and consistent experience for all, and will make reasonable adjustments to support you where appropriate. Please flag any adjustments you need to your recruiter as early as you can.

We’ve embraced hybrid working and split our time between unique office spaces and the convenience of working from home. You’ll find out more about what hybrid working looks like for your role later on in the recruitment process.

Your office space

Osterley OR Brick Lane

Our Osterley Campus is a 10-minute walk from Syon Lane train station. Or you can hop on one of our free shuttle buses that run to and from Osterley, Gunnersbury, Ealing Broadway and South Ealing tube stations. There are also plenty of bike shelters and showers.

On campus, you’ll find 13 subsidised restaurants, cafes, and a Waitrose. You can keep in shape at our subsidised gym, catch the latest shows and movies at our cinema, get your car washed, and even get pampered at our beauty salon.

Our Brick Lane office is based in the vibrant East End of London, an area known for its creativity and culture. The office is surrounded by a wide range of places to eat, meet and explore, making it a great spot to work and connect.

We’re well connected by public transport, with Aldgate East as the nearest tube station, and Liverpool Street Station a 10-minute walk away, offering Underground, National Rail and Elizabeth line services. If cycling is more your thing, bike parking, showers and changing facilities are available onsite. Car parking onsite is limited, however there are public car parks within a 5-minute walk.

We’d love to hear from you

Inventive, forward-thinking minds come together to work in Tech, Product and Data at Sky. It’s a place where you can explore what if, how far, and what next.

But better doesn’t stop at what we do, it’s how we do it, too. We embrace each other’s differences. We support our community and contribute to a sustainable future for our business and the planet.

If you believe in better, we’ll back you all the way.

Just so you know: if your application is successful, we’ll ask you to complete a criminal record check. And depending on the role you have applied for and the nature of any convictions you may have, we might have to withdraw the offer.