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AWS Cloud-Native App Development.

We design, build, and optimise cloud native applications that are agile, secure, and ready for tomorrow’s challenges, from concept to production.

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When Might You Need D55 Cloud Native Development Services?

Our cloud native expertise is the right fit if your organisation is facing any of these challenges or goals:

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Outdated, Monolithic Applications

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Struggling with legacy systems that are slow, hard to update, or expensive to maintain.

Scalability Limitations

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Your current application can’t handle fluctuating demand or high-traffic spikes efficiently.

Slow Release Cycles

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New features and updates take months to deliver, slowing innovation.

Cloud Readiness Gaps

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You want to leverage AWS, Azure, or Google Cloud but aren’t sure how to architect for it.

Performance Bottlenecks

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Applications suffer from downtime, latency issues, or poor user experience during peak loads.

Security & Compliance Requirements

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Operating in regulated industries where governance, auditing, and data protection are critical.

How Cloud Native Development Transforms Your Business

 Build Future-Ready Applications on AWS

Cloud Native Development reimagines how your applications are built and run, so your teams can deliver faster, scale effortlessly, and innovate without limits. At D55, we design, build, and optimise applications using microservices, containers, and serverless technologies that make your software more agile and cost-efficient.

Microservices Architecture

Break large applications into smaller, independent services. Each team can build, update, and scale features faster without touching the whole system.

Containerisation

Containers package code and dependencies together, making your apps portable, consistent, and easy to deploy across environments.

Serverless Development

Run code only when needed, no servers to manage, no idle costs. Scale instantly and pay only for what you use.

Continuous Delivery & Automation

Deploy new features quickly and reliably with automated pipelines and testing.

Security & Governance Built-In

Every solution follows AWS best practices, ensuring compliance, protection, and peace of mind.

Outcome:
 Cloud Native Development with D55 helps you cut operational overhead, increase agility, and deliver customer value faster, with the confidence of AWS scalability and security.

Book a Discovery Call to Start Building Cloud-Native Apps

Why Cloud Native Matters Now

From Legacy Limitations to Agile Innovation

Businesses using cloud native architectures deploy 200x more frequently (DevOps Research).
Cloud native applications reduce downtime by over 65% on average.
Modular microservices allow independent scaling for cost and performance efficiency.

Our Proven Path to Scalable, Resilient Applications

Discover

Understand your goals, current systems, and scalability needs

Design

Define architecture, technology stack, and integration approach.

Develop

Build microservices, APIs, and containerised workloads.

Deploy

Orchestrate via Kubernetes or serverless platforms.

Optimise

Continuously improve for performance, cost, and user experience.
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Benefits of working with D55

From Legacy Limitations to Agile Innovation

AWS Expertise

AWS certified specialists.

Security-First Approach

Compliance with GDPR, ISO 27001, and industry-specific standards.

Accelerated Delivery

Agile + DevOps practices for faster time-to-market.

Partnership Mindset

We co-create with your teams, upskilling them along the way.
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Solving problems and supporting innovation
Real-World Success Stories
Our notable area of specialism is the energy sector, where we have deep domain knowledge. However, the commonality of the challenges means that frequently work across diverse industries, including for private equity backed growth businesses, and would love to talk to you about how D55 can redefine how you think about modernisation.

Take a look at our collection of case studies showcasing the transformative impact of partnering with D55 and AWS.

All case studies

Amber

Amber is a forward-thinking energy and utilities provider committed to delivering efficient, reliable, and user-friendly services to its customers.
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An HR Software Company

D55 helped the customer modernise their Microsoft SQL Server database to AWS Aurora Postgres, unlocking annual cost savings of over £150,000 and improving scalability.
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A Software Provider for the Energy Industry

D55 partnered with the customer to design and implement a high-performance, serverless pricing engine using AWS that delivers faster, scalable energy pricing capabilities for their SaaS platform.
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Kooomo

D55 partnered with Kooomo to migrate their infrastructure from an expensive, risky data centre to AWS, saving money, enhancing resilience, and enabling scalability.
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A Leading Online-Only Pharmacy

D55 modernised and secured the customer's AWS infrastructure, enabling ongoing innovation and enhanced competitiveness in a dynamic market.
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An Intelligence Provider

Complex event processing for an intelligence provider. In the six-month period following the project, revenues have materially increased following an improved level of service quality.
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Switch2

Switch2 is the UK’s most experienced and capable provider of end-to-end solutions for heat networks.
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ITP Energised

ITPEnergised is a world-leading consultancy offering energy, environmental, engineering, technical advisory and renewables asset management services.
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OnGen

OnGen developed a sophisticated Excel model to perform the calculations necessary to determine which technologies work for a given location based on a customer’s financial or carbon-saving goals.
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A UK-based sustainable B2B Energy supplier

Reliably integrated systems means the customer can scale efficiently and a new data lake has improved data quality and enabled rapid data-driven decision making to release new and innovative solutions.
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Ready to Unlock the Power of Cloud Native?

From greenfield builds to complex modernisation projects, we’ll help you design, deploy, and optimise applications that are built for the cloud, and for the future.

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What our Clients Say

“While we led the initial business scoping and discussions with key stakeholders, it was a very smooth process working the D55 team to expand on this vision. The D55 team took ownership of building the solution and worked closely with us throughout the process. The quality of the work, combined with the excellent support during the handover, is exactly what we value in a partner.”

Andrew Thomas
CTO
Amber

" D55 enabled us to migrate from on-premise to a cloud-based solution, resulting in monthly cost savings of about 40%. Cloud-based systems give us a high level of resiliency and an unlimited capacity to scale. We’ve really put in place the foundations for later phases of work and further cost reduction as we scale. It was a partnership as opposed to a service - we work well together. "

Roger Worsley
CTO
kooomo

"Excellent technical knowledge, productive and responsive. Will go the extra mile to ensure customer satisfaction."

Chris Trigg
Co-Founder, Managing Director
ongen

"D55 are a highly experienced team that helped lead our business to push for and deliver an innovative and ambitious legacy to AWS transformation, with confidence. D55 have become a valued development and consultancy partner thanks to their excellent practical capability and their ability to apply the most appropriate working methodology to the challenge at hand."

Ed Berry
Head of Digital Products
switch2

"D55 have helped to develop our CRM system and have been a valued partner in this process. We continue to work with D55 on our application development and would have no hesitation to recommend them."

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Andrew Bright
Director
itp-energised

"D55 have proved to be an excellent development partner offering expertise and predictable delivery, with flexibility to respond to changing business needs. They have helped us explore new AWS technologies, challenged our thinking and sped up our adoption of relevant platform services."

Arran Stevenson
Director of Architecture
ensek

“D55 has been transformative for our business. They understood the business and our challenges and built a system that supports how we work now, as well as leveraging new technologies which are more cost-effective and increase our speed to deliver. Thanks to D55 we don’t have to worry about the day-to-day, so we can focus on the exceptional issues facing our industry."

D55 Client
CTO
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Unlock the full potential of cloud computing. Fast, Scalable, Cloud-Native Solutions Built for the Future

By embracing native cloud application development, businesses gain greater agility, faster time

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