Senior Software Engineer (Full-Stack) in Manchester

Slalom is a global, human-centric business and technology consulting firm. We specialise in partnering with organisations that aspire to excellence, helping them tackle complex challenges and achieve transformative results through strategy, technology and business transformation services. By prioritising people, Slalom creates a unique consulting experience, with a team of strategists and engineers delivering practical, end-to-end solutions that drive impactful outcomes for our clients.

Our Software Engineering team builds the core applications and services that power our products and deliver value to users around the world. We focus on creating scalable, secure, and high-performance systems that enable rapid innovation and seamless user experiences. By leveraging modern engineering practices and cloud-native technologies, we aim to reduce complexity, accelerate delivery, and continuously improve our platforms.

A Senior Engineer plays a fundamental role in shaping and delivering amazing software solutions to client challenges during discovery and delivery. You will partner with teams to understand the challenges they are facing as well as develop implementation and delivery plans that take advantage of emerging technologies at scale. During client delivery you will collaborate with Platform Engineers, Quality Engineers and AI Consultants to ensure that world class user experiences are understood, validation procedures are aligned and automation components are delivered.

Within our capability you'll be seeking to develop and grow your skills whilst advocating for progression of our capability on exciting frontiers such as Machine Learning and Generative AI.

Specifically, you will:

• Design, develop and maintain robust backend services and APIs using EITHER C#/.NET, Python or Java, applying clean code principles, design patterns, and modern software engineering practices.
• Build modern, responsive and accessible frontend applications using EITHER React or TypeScript, focusing on exceptional user experiences and performance.
• Build quality, reliable and performant applications, with a strong focus on maintainability, security and scalability.
• Develop and maintain AI assisted development practices, utilising tools such as GitHub Copilot, Claude, and other coding assistants to accelerate software delivery while maintaining code quality standards.
• Implement containerisation using Docker and support scalable deployments using orchestration tools where appropriate.
• Build and maintain CI/CD pipelines to enable efficient, automated and reliable software delivery.
• Foster a culture of inclusion and engineering excellence while promoting well-being, diversity and collaboration across the organisation.

What You'll Bring:

• Commercial experience building modern web applications using EITHER React or TypeScript.
• Experience designing and developing scalable APIs, microservices and distributed systems.
• Integrated generative AI solutions into existing applications, leveraging APIs and prompt engineering techniques to deliver intelligent, context-aware functionality.
• Hands‑on experience working with cloud platforms (e.g. Azure or AWS), including deployment and infrastructure concepts.
• An understanding of DevOps practices, including CI/CD, containerisation, observability and testing.
• A collaborative mindset, passionate about sharing knowledge and driving engineering best practices.

We have deep relationships with leading technology partners and they love us for our innovative and outcome based approach. Our people are passionate about solving our clients problems using the tech that’s the best solution for them. What’s more, we’re there to work side‑by‑side with our client teams to enable them for success long after we’ve gone. We’re all about momentum that outlasts us.

Life is busy, and we understand that. Our team often juggles work, family, personal commitments, and crucial client obligations. We prioritise supporting our people in balancing what matters to them while ensuring we meet our client commitments. Flexibility is key, as we sometimes need to adapt to meet client needs. This way, our team can work on high-impact projects they’ll love, knowing they have the flexibility to manage their personal and professional lives effectively.

Great solutions start with great people and those great people are at their best when they’re empowered to be the true authentic selves through leading with kindness, empathy and striving for equity we’re able to create better experiences for our people and our clients. Our culture is central to everything we do - encouraging passion, adventure, adaptiveness and diversity of thought. Inclusion, diversity and equity is at the top of our agenda, we have created a community where we empower our team to be the best version of themselves.

There’s no shying away from it - the compensation and benefits on offer have to be competitive too, right? We know that. That’s why we have a dedicated team working with our leaders to ensure our packages are fair, competitive, and rewarding!

Slalom is a next‑generation professional services company creating value at the intersection of business, technology, and humanity. With our fiercely human approach, we deeply understand our customers—and their customers—to deliver practical, end‑to‑end solutions that drive meaningful impact. Supported by over 400 technology partners, our 10,000+ team members in 12 countries and 52 offices we Inspire people and organisations to envision greater possibilities, accelerate progress, and shape a brighter future for everyone.

We’re honoured to be consistently recognised as a great place to work, including being one of Fortune’s 100 Best Companies to Work for nine years running. Slalom prides itself on helping our team members thrive in their work and life. As a result, Slalom is proud to invest in our team members with competitive and innovative benefit programs and services that meet the unique needs of our diverse workforce.