Senior Software Engineer (Full-Stack)

Slalom; Manchester; On-site; GBP 70,000 - 100,000; Full time

Job summary

Slalom, a global human-centric consulting firm, is hiring a Senior Software Engineer for our Manchester team. You will design, implement and maintain scalable backend services and APIs while delivering modern frontend applications with React or TypeScript.

The role emphasises AI-enabled development, Docker containerisation, and CI/CD pipelines to support secure, high-performance software delivery. You will collaborate with Platform, Quality, and AI teams to ensure robust, observable systems and

Qualifications

• Commercial experience building modern web applications using 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.

Responsibilities

• Design, develop and maintain robust backend services and APIs using C#/.NET, Python or Java.
• Build modern, responsive frontend applications using React or TypeScript.
• Build quality, reliable applications with emphasis on security and scalability.
• Develop AI-assisted development practices using tools like GitHub Copilot and Claude.

Skills

React

TypeScript

APIs

Microservices

Azure

AWS

CI/CD

Docker

Observability

GitHub Copilot

Claude

Tools

GitHub Copilot

Claude

Docker

Job description

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. We empower people and organisations to dream bigger, move faster and build better tomorrows for all.

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.

We’re excited to welcome a Senior Software Engineer to join our Manchester team to help drive forward our mission of building world-class software.

Life as a Senior Engineer

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.
• Developed and maintained 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.

But what do we really mean when we talk about loving your life and your work? Let’s look at the ways in which we help our team members to achieve this – and the ‘how’.

Deep connections, better outcome

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.

Flexibility

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.

People-first

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.

Rewards

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!

Who are we... We are Slalom!

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. Read about us at slalom.com.

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. If you require any assistance with regards to reasonable adjustments during the recruitment process, please do not hesitate to contact us – we will always be happy to help.