1 to 25 of 30 Permanent Senior .NET Developer Jobs

Senior .NET Developer - .NET core - C# - Azure - Electronic trading organisation - Are you ready to bring your expertise to a company where your voice matters, your growth is supported, and your work makes a real impact? Miller Maxwell's client is building a diverse, collaborative team … global financial services firm with a FinTech mindset. As a Senior .NET Developer, you’ll lead greenfield projects in a supportive, agile environment that values innovation, inclusion, and balance. 🏡 Hybrid Working: 1-2 days in their London office (close to St Paul's), 3-4 days remote ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse … client base across the UK. This is an excellent opportunity for a technically strong developer who enjoys taking ownership, working closely with architects and stakeholders, and delivering robust solutions in modern Microsoft environments. Whats on Offer Salary up to £60,000 Excellent benefits package Hybrid/remote working model ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse … client base across the UK. This is an excellent opportunity for a technically strong developer who enjoys taking ownership, working closely with architects and stakeholders, and delivering robust solutions in modern Microsoft environments. Whats on Offer Salary up to £60,000 Excellent benefits package Hybrid/remote working model ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse … client base across the UK. This is an excellent opportunity for a technically strong developer who enjoys taking ownership, working closely with architects and stakeholders, and delivering robust solutions in modern Microsoft environments. Whats on Offer Salary up to £60,000 Excellent benefits package Hybrid/remote working model ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse … client base across the UK. This is an excellent opportunity for a technically strong developer who enjoys taking ownership, working closely with architects and stakeholders, and delivering robust solutions in modern Microsoft environments. Whats on Offer Salary up to £60,000 Excellent benefits package Hybrid/remote working model ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse … client base across the UK. This is an excellent opportunity for a technically strong developer who enjoys taking ownership, working closely with architects and stakeholders, and delivering robust solutions in modern Microsoft environments. Whats on Offer Salary up to £60,000 Excellent benefits package Hybrid/remote working model ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse … client base across the UK. This is an excellent opportunity for a technically strong developer who enjoys taking ownership, working closely with architects and stakeholders, and delivering robust solutions in modern Microsoft environments. Whats on Offer Salary up to £60,000 Excellent benefits package Hybrid/remote working model ...

Senior .NET Developer Devon (Hybrid-working - minimum of 2 days in the office, meaning you must be based locally) c£55,000 to £65,000 per year Pension, Bonuses, Training and Development, etc. Skills and Experience: Expertise in C#, .NET Core, REST API design and backend … support for integration testability. The Opportunity: My client based are a Software house based in Devon and they are currently looking for a Senior .NET Developer on a permanent basis. In this role, the Senior .NET Developer will play a key role in designing ...

Senior .NET Developer Devon (Hybrid-working - minimum of 2 days in the office, meaning you must be based locally) c£55,000 to £65,000 per year Pension, Bonuses, Training and Development, etc. Skills and Experience: Expertise in C#, .NET Core, REST API design and backend … support for integration testability. The Opportunity: My client based are a Software house based in Devon and they are currently looking for a Senior .NET Developer on a permanent basis. In this role, the Senior .NET Developer will play a key role in designing ...

leading global commodities trading firm is seeking a Senior .NET Developer to join its high-performing Data Platform team. This role sits within a business-critical engineering function responsible for building and maintaining high-throughput, low-latency data systems that underpin trading, analytics, and operational decision-making … collaborative Scrum-based team with a strong engineering culture, contributing not just code but ideas, architectural thinking, and platform evolution. Role Overview As a Senior .NET Developer within the Data Platform team, you will play a key role in the design, development, and optimisation of highly critical ...

Senior .Net Developer £80,000 Hybrid Kingston, Surrey Software Developer, Software Engineer C# .Net A highly successful and rapidly growing techn business are looking for a Senior .NET Developer to join theirAgile delivery team building and evolving secure, high-volume transaction systems. … This is a hands-on senior engineering role where youll design and deliver complex features, shape technical standards, and help ensure systems remain secure, scalable and resilient. If you enjoy solving difficult technical problems, working with modern engineering practices, and mentoring others while staying close to the code then ...

Senior .NET Developer Global Tech Company | Agile Delivery Teams | Hands-On | UK-Based Millions of customers. One proprietary platform. Infinite possibilities. This global technology business has just completed a massive migration to their own platform, and now, the stage is set for scale, innovation, and speed. Products … experiences delivered to customers worldwide are next-level. At the heart of it all? The tech team. And they’re looking for a Senior .NET Developer to join one of their agile delivery squads and help shape the future of their platform. What You’ll Do: Build ...

Senior .NET Developer - UK Security Requirement: Active SC Clearance (essential) A well-established and highly respected technology consultancy is seeking an experienced Senior .NET Developer to join its expanding Cloud Engineering function. This organisation delivers complex, secure and cloud-first solutions to a diverse ...

Senior .Net Developer £80,000 Hybrid Kingston, Surrey Software Developer, Software Engineer C# .Net A highly successful and rapidly growing techn business are looking for a Senior .NET Developer to join theirAgile delivery team building and evolving secure, high-volume transaction systems ...

Senior .NET Developer (MAUI/Mobile) Hybrid – 1 day per week in Bicester, Oxfordshire (Excellent rail links from London & Birmingham) £60,000 – £70,000 + excellent benefits An established UK technology business is looking for a Senior Software Developer to join a small, collaborative engineering … mobile applications. This is a hands-on role. You'll be working across ASP.NET Core web platforms and cross-platform mobile apps in .NET MAUI (Android-focused), owning features end-to-end from technical design through to deployment and support. The team works in an agile environment ...

Senior C# Developer/Backend Software Engineer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior C# Developer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great … established Hedge Fund client as a partner, they're creating a finance technology hub bringing a wealth of talent and experience. As a Senior C# Developer you will collaborate with a small, talented team to deliver the core trading platform within a Microsoft environment using the latest versions ...

Picture your next role as a Senior Backend Developer... You walk into a team where most developers stayed for years. People know the platform, trust each other, and care about the work. No chaos. No constant churn. A steady engineering team that builds solid software. You focus on backend … engineering. C#, .NET, Azure. You work on cloud systems that run across the business. The team improves platforms, builds new services, and keeps raising the standard. Senior developers here solve problems, share knowledge, and take ownership of the platform. Your role: Build backend services using C# and .NET ...

Core back office automation, Open API and integration suite and Digital solutions serving the insurance value chain . Currently looking to recruit a Senior .NET Developer in data a product analytics. Hybrid working role The role will combine hands-on feature development in the core stack with … health insurers, while also owning the end-to-end data pipeline and analytics tooling that underpins product KPIs and user behaviour insights. Product Development (.NET/Angular/APIs) Design, develop, and maintain features across our policy and claims management product using: .NET (C#), ASP.NET Core Angular ...

Core back office automation, Open API and integration suite and Digital solutions serving the insurance value chain . Currently looking to recruit a Senior .NET Developer in data a product analytics. . click apply for full job details ...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk … autonomous systems that plan, build, and operate security awareness and human risk workflows, supported by strong guardrails and observability. We’re looking for a Senior Backend Developer who wants to build production-grade backend services that power these systems, working in a multinational, AI-first engineering team where ...

Senior C# Developer/Backend Software Engineer (C# .Net) Newcastle onsite to £130k+ Are you a Senior C# Developer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great ...

long time ago that the best way to give world-class advice is to build the tech ourselves. We’re looking for a Senior Software Developer who is tired of being a ticket-taker and wants to be a builder. 📌Offices across the UK, with on-site flexibility … over the products we ship. Modernize: Drive our transition into a cloud-native future, working primarily within a modern Microsoft ecosystem (C#, .NET Core, Azure). Mentor: Share your expertise. You’ll play a pivotal role in coaching junior talent and fostering a culture of clean, secure, and effective ...

Senior.NETDeveloper(MAUI/Mobile) Hybrid1dayperweekinBicester,Oxfordshire(ExcellentraillinksfromLondon&Birmingham) £60,000£70,000+excellentbenefits AnestablishedUKtechnologybusinessislookingforaSeniorSoftwareDevelopertojoinasmall,collaborativeengineeringteambuildingmodernwebandmobileapplications. Thisisahands-onrole.You'llbeworkingacrossASP.NETCorewebplatformsandcross-platformmobileappsin.NETMAUI(Android-focused),owningfeaturesend-to-endfromtechnicaldesignthroughtodeploymentandsupport.Theteamworksinanagileenvironmentandtheexpectationisthatyou'recomfortabletakingownershipandmakingdecisions. You'llbewritingC#onmodern.NET,designingandbuildingRESTfulAPIs,workingwithEntityFrameworkCoreandkeepingSQLServerandAzureSQLperformingwell.Cleanarchitecture,SOLIDprinciplesandwritingtestable,maintainablecodematterhere. Aswellasyourowndevelopmentwork,you'llcontributetocodereviews,helpshapetechnicalstandards,providesomelight-touchmentoringtolessexperienceddevelopersandengagedirectlywithstakeholders.Notamanagementrole-butyou'llhaveinfluence. KeyExperience: 5+yearscommercial.NETdevelopment StrongASP.NETCoreincludingMVCandAPIdevelopment ExperiencebuildingAndroidappswith.NETMAUIorXamarin.Forms GoodOOPandsoftwaredesignskills,comfortablethinkingaboutarchitecture SolidEntityFrameworkCoreknowledgeincludingperformancetuning StrongSQLacrossSQLServerorAzureSQL Git-basedcollaborativeworking Someexperiencewithautomatedtesting Keywords … C#|.NET|ASP.NETCore|MAUI|Xamarin|EntityFramework|SQLServer|AzureSQL|Android|APIDevelopment ...

repeatable processes, particularly around claims invoice processing and related workflows. You will work within a Scrum team (3-week sprints), contributing to our existing .NET/Angular platform while leading the design and implementation of AI-centric features and integrations. You will partner closely with our ML engineering … leverage our in-house GPU infrastructure and Run.ai platform for model training, fine-tuning, and inference at scale. Key Responsibilities Core Product Development (.NET/Angular/Messaging) Design, build, and maintain core product features using: .NET (C#), ASP.NET Core Angular SQL Server and MongoDB RESTful APIs ...

client, a leading global bank, is seeking an experienced Senior Software Engineer to join their Risk Technology & Market Data team within Corporate IT. This is an excellent opportunity to play a key role in developing and delivering enterprise-grade Risk IT solutions that support risk functions within a world … performance and risk analysis Work effectively with global teams across multiple locations Key Requirements Strong hands-on experience in software engineering using C# and .NET Core Solid understanding of CI/CD tools and practices (e.g., Jenkins, TeamCity, Git, Nexus) Experience within enterprise-level or investment banking environments, ideally ...