We help organisations navigate the future of technology, combining human expertise, emerging tech and AI to deliver better outcomes, faster.
Since 2014, we’ve worked side-by-side with clients to solve complex challenges, build high-performing teams, and create lasting capability.
About you:
- You care deeply about producing high-quality work that delivers real value
- You’re comfortable navigating ambiguity and solving complex problems collaboratively
- You bring strong expertise in your craft, alongside a willingness to keep learning
- You communicate clearly and build trust quickly with clients and teammates
- You’re pragmatic, adaptable and outcome-focused
- You value low-ego collaboration and enjoy working as part of multidisciplinary teams
Requirements
What you’ll bring to the table:
- Key Responsibilities
- Platform Capacity & Scalability: Lead the initiative to prove and improve platform capacity and concurrency. Design solutions that allow our core systems to handle significant demand increases without service degradation.
- Service Layer Modernization: Oversee the rebuild of core API services (Identity, Portfolio, ShareDealing) to move off unsupported .NET frameworks, ensuring security, maintainability, and improved performance.
- Performance Engineering: Implement a repeatable performance testing capability. Identify and remediate bottlenecks in high-traffic customer journeys and establish proactive monitoring strategies.
- API-First Integration Strategy: Drive the move from brittle, legacy file-based (SFTP) interfaces to robust, scalable API interfaces, prioritizing the “top 10” critical supplier integrations to reduce dependencies and improve real-time data flow.
Required Skills & Experience
- Backend Engineering & .NET: Deep expertise in .NET architecture and backend systems. Experience in modernizing legacy frameworks while maintaining platform uptime is critical.
- High-Concurrency Performance: Proven experience diagnosing and fixing performance issues in high-load, distributed systems. You understand how to eliminate bottlenecks in database-heavy applications.
- API Design & Integration: Demonstrated success in designing and scaling robust API interfaces, specifically replacing legacy file-based/batch processing systems with real-time, resilient API solutions.
- Technical Resilience: Practical experience implementing resilience patterns (e.g., caching, circuit breakers, rate limiting) to insulate services from vendor or downstream degradation.
- Operational Mindset: Experience in establishing performance baselines and testing protocols that directly inform architectural decision-making.
Benefits
Equal Opportunities Statement
Diversity and inclusion are hugely important to us, and we’re committed to providing equal opportunities for all. We’re actively recruiting for a diverse and inclusive workforce so want to ensure we do everything we can to support your application.
We want you to feel safe and empowered to let us know if you need any adjustments to be made to your application or interview process, so please speak to our recruitment team.
Skills Required
- Deep expertise in .NET architecture and backend systems
- Experience modernizing legacy .NET frameworks while maintaining platform uptime
- Proven experience diagnosing and fixing performance issues in high-load, distributed systems
- Experience eliminating bottlenecks in database-heavy applications
- Demonstrated success designing and scaling robust API interfaces (replacing file-based/batch with real-time APIs)
- Practical experience implementing resilience patterns (caching, circuit breakers, rate limiting)
- Experience establishing performance baselines and repeatable testing protocols
- Experience with legacy file-based interfaces (SFTP) and supplier integration migrations
What We Do
AND Digital is on a mission to close the world’s digital skills gap. We do that by doing things differently when we work with our clients, communities and colleagues. Instead of working FOR exciting brands (like British Airways, Heineken and Nike), we work WITH them, and that's not just a party line. We combine our people with our clients' people to form a single project team, so collaborative you can't tell our ANDis from our clients. By working together, we help our partners understand and map out the challenges they're trying to solve. Then, by building their digital products as one team, we teach them the same digital skills we have. That means when we leave, they can own their apps, websites and future projects independently. Pretty cool huh? We have cross-functional teams working across the UK, Netherlands and East Coast US - and growing by demand. Our unique, city-based Club model means we can offer the agility and personalised service of a small local company, with the security and clout of a global organisation
.png)
