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Solirius Reply

Independent software consultancy delivering agile solutions

.NET Microsoft Consultant

Full-TimeUpdated on 10/17/2026
No salary listed
Mid
London, UK
Hybrid
Software EngineeringBackend Engineering

About the job

Requirements
  • Strong commercial experience with C# and .NET.
  • Experience developing applications using ASP.NET and ASP.NET Core.
  • Good understanding of object-oriented programming and software development principles.
  • Experience developing and consuming REST APIs and web services.
  • Strong understanding of the software development lifecycle and coding best practices.
  • Experience working with relational databases such as SQL Server.
  • Ability to troubleshoot, debug, optimise, and maintain existing .NET applications.
  • Experience with source control such as Git.
  • Understanding of application architecture, integration, security, and performance.
  • Good experience with Microsoft 365.
  • Experience with Microsoft Power Platform, particularly Power Apps and Power Automate.
  • Experience developing VBA solutions, particularly Excel automation.
  • Experience or familiarity with Microsoft Word macros and document automation.
Responsibilities
  • Design, develop, test, implement, and maintain robust .NET applications and solutions.
  • Develop scalable and maintainable solutions using C#, .NET, .NET Core, .NET 6+, and related Microsoft technologies.
  • Analyse business and technical requirements and translate them into effective technical solutions.
  • Work with clients and stakeholders to understand requirements, provide technical guidance, and recommend appropriate solutions.
  • Troubleshoot, debug, and resolve application and integration issues.
  • Develop and integrate APIs and services with existing business applications and systems.
  • Contribute to application architecture, technical design, development standards, and best practices.
  • Perform code reviews and ensure solutions are secure, reliable, maintainable, and fit for purpose.
  • Work across the wider Microsoft ecosystem, including Microsoft 365 and Power Platform, where appropriate.
  • Develop automation and business solutions using VBA, particularly within Microsoft Excel and Word.
  • Create, maintain, and enhance Word macros to automate document production and business processes.
  • Develop and maintain business reports using Crystal Reports where required.
  • Identify opportunities to improve existing applications, processes, and systems through modern Microsoft technologies.
  • Produce technical documentation and support knowledge transfer to clients and internal teams.
  • Manage multiple projects or workstreams while maintaining a high standard of delivery.
  • Keep up to date with developments in the .NET and Microsoft technology ecosystem.
Desired Qualifications
  • Familiarity with Microsoft Azure and cloud-based solutions.
  • Experience with Crystal Reports, including report design, development, maintenance, and troubleshooting.
  • Experience creating and maintaining Microsoft Word macros using VBA.
  • Experience with Excel VBA and Office automation.
  • Experience with Azure and Azure DevOps.
  • Experience with Entity Framework and Entity Framework Core.
  • Knowledge of JavaScript, TypeScript, HTML, and CSS.
  • Experience with CI/CD and automated deployment pipelines.
  • Experience with Power BI, Dataverse, SharePoint, or Teams.
  • Microsoft certifications.
  • Previous experience in a client-facing consultancy environment.

About the company

Solirius Reply is an independent software and technology consultancy that delivers complex technology solutions tailored to client needs. Operating mainly in the UK, it works with government departments and private sector clients by aligning requirements with cost and complexity to select suitable technology options. Its services include software engineering, technology consulting, and delivery consulting, supported by agile methodologies that enable continuous delivery, iterative improvement, and incremental adoption. The company differentiates itself through a user-centric approach, emphasis on cost-effective solutions, and a track record of successful engagements, often established through strategic partnerships and project-based work. Its primary goal is to help clients achieve success by delivering practical, well-architected digital solutions that meet real user needs while improving deployment efficiency and overall delivery outcomes.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

United Kingdom

Founded

2007

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Simplify's Take

What believers are saying

  • Ministry of Justice awarded Solirius £8m on 2026-03-05 and £4.6m on 2026-05-28.
  • Solirius Reply is actively hiring in August 2026, including graduate and architecture roles.
  • Reply’s 2026 AI-in-government push expands Solirius’s access to public-sector transformation budgets.

What critics are saying

  • Revenue concentration on UK government procurement exposes Solirius to one buyer ecosystem.
  • The £7m Department for Education contract ends in November 2026, risking renewal loss.
  • Reply integration can flatten Solirius’s brand, talent retention, and client-facing autonomy.

What makes Solirius Reply unique

  • Reply acquired Solirius on 2024-10-30, giving UK public-sector scale and network leverage.
  • Solirius serves HMCTS, FCDO, DfE, and BDUK with end-to-end digital transformation.
  • Its public-contract footprint totals 29 awards and £233.1m published value.

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Benefits

  • Health Insurance
  • Paid Vacation
  • Professional Development Budget
  • Parental Leave
  • Fertility Treatment Support
  • Gym Membership
  • Commuter Benefits
  • Flexible Work Hours
  • Company Social Events

Growth & Insights and Company News

Headcount

6 month growth

17%

1 year growth

17%

2 year growth

17%
FirmenPresse
Oct 30th, 2024
Reply Expands in UK with Solirius

Reply has expanded in the UK by integrating Solirius into its group. Solirius, a leader in digital transformation projects for the UK government sector, will enhance Reply's capabilities in AI, Big Data, Cloud Computing, and IoT. This acquisition strengthens Reply's offerings in consulting, system integration, and digital services across various sectors, including telecommunications, media, and public administration.