• Email aydin@citeltd.co.uk
  • Opening hours

    Mon–Fri 9:00–17:30 (by appointment)

  • Office location

    Unit 27, 1st Floor, Stort Mill Ind. Est. Riverway, Harlow, Essex CM20 2SN, UK

Custom web development (ASP.NET Core)

Line-of-business portals, customer-facing apps and integrations built with clean patterns and production discipline.

Engineering for change — not one-off scripts

We build ASP.NET Core solutions with clear layering, testable services, and configuration that survives promotions from development to staging and production. Security reviews consider authentication, authorisation, injection risks and secret handling from day one.

Data layers favour Microsoft SQL Server where your roadmap expects reporting, transactional integrity and mature tooling — with indexing and migration strategies discussed upfront.

You receive readable code, deployment notes, and an honest backlog of improvements so ownership is transferable — whether your team grows or partners rotate.

We integrate with your identity provider choices where practical — OpenID Connect, Azure AD-style flows, or bespoke schemes when legacy constraints demand it — always documented.

ASP.NET Core custom software development

APIs that other systems can trust

RESTful APIs are versioned thoughtfully, error contracts are consistent, and pagination/filtering patterns are chosen to protect database health under load.

When GraphQL is genuinely justified by client diversity, we discuss operational costs — caching, complexity limits and observability — before adopting.

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Performance awareness

Profiling hot paths, avoiding N+1 data access, and caching where it is safe.

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Operational hygiene

Structured logging, health endpoints, and sane timeout defaults for outbound calls.

Delivery and handover

We align branching and release expectations with your risk tolerance — from manual gated releases to scripted deployments. Environments carry distinct secrets; production credentials never appear in repositories.

Documentation covers architecture diagrams at the right altitude, runbooks for on-call scenarios, and data protection notes where personal data is processed.

Code review and software architecture
Web application testing and deployment

If you need a partner who speaks both board-level outcomes and low-level stack traces, Cure IT ESSEX LTD bridges that gap. Share your domain problem, integrations and non-functional requirements — we will respond with a phased plan and realistic timeline.

Technical focus

  • ASP.NET Core MVC / Razor Pages / APIs

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  • Entity Framework Core where appropriate

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  • SQL Server schema design

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  • Authentication & authorisation

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  • Background jobs and queues

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  • Performance and security reviews

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IT support, repair, hardware supply and web delivery from Harlow, Essex — serving customers across the UK.

Contact Info

Office Address

Unit 27, 1st Floor, Stort Mill Ind. Est. Riverway, Harlow, Essex CM20 2SN, UK