Revit Architecture Bim Projects

Senior UK .NET Developer – Long-Term System Support + Dev

We are looking for an experienced UK-based senior .NET developer to take long-term ownership of a business-critical CRM & Finance platform. This is not a one-off task. We want a long-term partner who can first familiarise themselves with the system and stabilise it, then provide full ongoing support and further system development. We are actively replacing an existing slow and ineffective support arrangement and are keen to work with someone professional, proactive and reliable. Phase 1 – Initial Audit, Familiarisation & Bug Fixing The first phase will be a paid engagement to: • Set up a full offline / local development environment • Review the codebase, database and overall architecture • Identify and fix priority bugs and long-standing issues • Improve system stability and performance • Produce a short stabilisation and improvement plan This phase allows you to fully understand the platform and demonstrate ownership before moving into long-term support. Phase 2 – Full Ongoing Support & Further Development (Long-Term) After stabilisation, this becomes an ongoing hourly role providing both live system support and further development, including: • Full production support when bugs or system issues arise • Rapid diagnosis and fixing of live problems • Ongoing performance monitoring and optimisation • Enhancements and new feature development • Refactoring and gradual modernisation • Safe testing and controlled deployment into the live environment We expect regular monthly work and a long-term working relationship. Technology Stack • VB.NET and C#.NET (mixed legacy and newer code) • SQL Server Express (stored procedures, LINQ, optimisation) • jQuery, NuGet packages, PDF export module • Hosted on AWS (Windows Server 2019) • Source control in Bitbucket Two tightly integrated applications (CRM + Finance) sharing a central database. Who We’re Looking For This role is only suitable for a senior UK-based developer who: • Has strong experience with C#.NET / VB.NET and SQL Server • Has proven experience supporting live, business-critical systems • Is confident diagnosing and fixing production issues quickly • Is comfortable owning and evolving a complex legacy platform • Communicates clearly and works reliably long-term Experience with AWS / Windows hosting is a strong advantage. Budget & Engagement • Engagement via PeoplePerHour • Hourly rate: £60 – £75 per hour (depending on experience) • Phase 1 expected to be a short initial contract (audit + stabilisation) • Phase 2 is an ongoing hourly support & development role with regular monthly work How to Apply Please include: • Confirmation that you are UK-based • Relevant experience with legacy .NET systems and live production support • Your hourly rate • Availability per week / month • Brief outline of how you would approach the initial audit and stabilisation phase

opportunity

Engineer to audit Existing CRM Codebase (TypeScript/Node/NeonDB)

Job Description I’m looking for an experienced senior full-stack engineer to review an existing CRM system and provide a clear, structured technical assessment of the current codebase. This is not a build-from-scratch role. The goal is to audit the existing system, review architecture and implementation choices, and highlight risks, concerns, and improvement opportunities across backend, frontend, and data layers. Tech Stack Backend: Node.js, Express, TypeScript Frontend: TypeScript, Tailwind CSS Database: NeonDB (PostgreSQL) System Type: Custom CRM platform Auth: Mix of public and authenticated endpoints Scope of Review You will be asked to review the existing codebase and provide written feedback on: 1. Code Structure & Architecture Project structure and separation of concerns API design and route organization Service, controller, and data access patterns Type safety and TypeScript best practices 2. Backend & API Review Public vs authenticated endpoint design Validation, error handling, and middleware usage Security posture of public endpoints Rate limiting, abuse protection, and access controls 3. Frontend Review Component structure and state management Tailwind usage and maintainability Frontend/backend contract consistency 4. Database & Data Layer Schema design and relationships Query patterns and performance considerations Data access safety (SQL injection, unsafe queries) 5. Security & Reliability Authentication/authorization design IDOR, data exposure, and abuse risks Secrets management and configuration hygiene Logging, monitoring, and error visibility Deliverables A written technical review (bullet-pointed and structured) Clear identification of high-risk, medium-risk, and low-risk concerns Practical, actionable recommendations (no theoretical fluff) Notes on what is good and should remain unchanged No code changes are required unless specifically discussed. Ideal Freelancer 5+ years professional full-stack experience Strong TypeScript + Node.js background Experience reviewing or auditing existing codebases Comfortable with PostgreSQL / NeonDB Strong understanding of API security and CRM-style systems Clear written communication (this is a review role)