Cogent Bytes is a London consultancy that designs, builds and runs platforms on AWS: secure cloud foundations, real-time systems and data platforms, with generative AI and agents added where they deliver real value.
We build and run platforms on AWS, and add AI where it earns its place. Everything is designed to be secure, observable and cost-aware from day one.
We design, build and modernise platforms on AWS: containerised services, real-time and event-driven systems, and secure multi-account foundations defined as code. Once you are live, we support, monitor and tune them for cost and performance.
We bring scattered data together into a secure platform, with reliable ingestion pipelines, quality checks and clear access rules, so analytics and AI can trust what they use.
We take generative AI from a promising prototype to a service people rely on: answers grounded in your own documents, guardrails, testing, cost monitoring and data kept where it should be.
We connect AI assistants and agents to your internal data and applications through Model Context Protocol (MCP) servers, with the permissions, human approval steps and audit trail a real business needs.
A reference architecture for AI on AWS. We adapt it to each client and start with the layer you need most.
Everything runs in your own AWS accounts. Scroll sideways to see the whole picture.
A clear path from first conversation to a working service, with a decision point at every step.
We talk through your goals, your platform and where we can help. No cost, no obligation.
A short review of your data, platform and security, with a prioritised plan and honest advice on what to do first.
We build the first use case properly, on foundations that will carry the next ones.
Monitoring, support and new use cases, with a monthly review of cost, quality and value.
Platforms we have designed and delivered. Where a client has not yet agreed to be named, we describe the work without naming them.
Several projects on the department's AWS-hosted data platform, used by analysts across the department: data ingestion pipelines, analysis tools and the security and data-protection standards that government work demands.
Architecture and build of an AWS platform that distributes bookmaker prices and events at high volume, with a multi-region target design for resilience. Delivered through Blue Pearl, an AWS Advanced Partner.
Back-end services that exposed Vertu's business as APIs and powered the apps on its phones. Monolithic applications became microservices on AMQP and REST, with automated delivery and hosting moved to AWS.
Sectors where data is sensitive, volumes are high and mistakes are costly. That is where careful engineering pays off.
Secure data platforms and safe, well-governed adoption of AI, built to government security and data-protection standards.
Real-time pricing, event data and high-volume messaging, where speed, accuracy and regulation all matter.
Customer data, analytics and AI features that need to scale without compromising security.
Clear scope, honest advice and a platform you fully own at the end.
We build AI services to run for real: tested, monitored and supported, with costs you can predict.
Access control, encryption, audit and data residency are designed in from day one, not added later.
Every engagement is led by an experienced architect in London who stays accountable for quality.
We price from the requirements up and agree what done looks like before we start.
Platforms, data, code and prompts live in your own AWS accounts, with full documentation and handover.
Progress, risks and costs reported in plain language, written for the people who make decisions.
Cogent Bytes Ltd is a London consultancy, established in 2015 and led by its two co-founders, each with 25 years of experience in UK industry.
Leads architecture and delivery on every engagement. Sekhar has 25 years of experience in application design, data platforms, ETL pipelines and AWS infrastructure, for UK central government, financial services, regulated gaming and consumer technology. His earlier work includes platforms for Betfair, RBS, Bank of Scotland and Fortis.
Leads client relationships and partnerships, and is the first point of contact for new engagements. Rajani brings 25 years of experience across UK firms and roles, and makes sure every project starts with a clear scope and stays focused on the outcome the client needs. His experience includes work with Camelot (UK National Lottery) and British American Tobacco.
For larger programmes we bring in a trusted delivery team under the same leadership, so clients get senior design and accountability with the capacity to build at pace.
Tell us what you are building on AWS, what you want AI to do for your organisation, or where a project has stalled. We will reply within one working day to arrange a call.
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