WHO WE ARE

An engineering-led consultancy built on the Microsoft stack.

Nexaaris Labs Ltd is a UK engineering consultancy that architects, builds and modernises enterprise systems on Microsoft Azure, .NET and the wider Microsoft ecosystem — combining architectural rigour with hands-on delivery.

What we do

We architect, build and modernise business-critical software systems. Our engagements cover the full lifecycle — from current-state assessment and target architecture through implementation, automated delivery and operational handover — across five disciplines: AI and agentic systems, cloud and platform engineering, .NET application engineering, integration and data, and DevSecOps.

Microsoft technology specialists

Our core expertise is the Microsoft platform — Azure, .NET, Microsoft Entra, Azure AI Foundry and Azure OpenAI, Azure Integration Services, Microsoft Fabric and GitHub — complemented by open-source tools such as Terraform, Kubernetes, LangChain, LangGraph, n8n and open-weight language models where they are the better fit. We are independent and not affiliated with or endorsed by Microsoft.

Engineering principles

A small set of principles governs how we design and build, whatever the technology.

Architecture as decisions: every significant choice is captured in an Architecture Decision Record (ADR) with context, options and consequences
Non-functional requirements are first-class: availability, latency, recovery (RPO/RTO), security and cost targets are agreed and tested, not assumed
Everything as code: infrastructure, policy, pipelines and configuration are versioned, reviewed and reproducible
Security by design: least privilege, managed identities, zero standing secrets and threat modelling from the first iteration
Observable by default: structured logs, distributed traces and metrics with OpenTelemetry, wired to service-level objectives
Evolvability: loosely coupled components, explicit contracts and automated tests so systems can change safely

How we design

We design to the Microsoft Azure Well-Architected Framework and Cloud Adoption Framework, and to OWASP security guidance, so our architectures are familiar to your architects, security teams and auditors from day one.

Who we work with

Our services suit organisations modernising established platforms, introducing AI into existing processes, or building new digital services on Azure. Engagements range from short architecture reviews and technical due diligence to embedded senior engineering alongside an internal team.