1 to 25 of 124 Permanent C# Jobs in the City of London

Technical Lead - Head of Engineering - 2 Days Peterborough or London

Hiring Organisation
ZENZO DIGITAL LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
TypeScript React.js (preferred), Angular, or Vue.js Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Front-end testing (Jest, React Testing Library, Cypress) Backend C#, ASP.NET Core/.NET 6+ RESTful and GraphQL APIs Entity Framework Core, LINQ Authentication & authorisation (OAuth2, JWT, Azure AD) Secure coding and API versioning Data ...

Senior C# Developer .Net Core - Finance

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
Senior C# Developer/Engineer (C# .Net Core) London/WFH to £85k Are you a skilled C# Developer looking to progress your career in a senior, hands-on role? You could be at a successful and scaling Retail FX Brokerage working on Greenfield systems. As a Senior C# Developer … designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack in a modern ...

Senior Sotware Engieer

Hiring Organisation
Espire Infolabs Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
.Net Core, Azure functions, Azure Functions, Microservice Architecture. Job Description: Proven experience as a .NET Core Developer with expertise in Microsoft Azure. Proficiency in C# and .NET Core for server-side development. Excellent Coding skills and best practices Strong experience of Azure services, including but not limited to Azure ...

Full Stack Engineer

Hiring Organisation
83zero
Location
City of London, London, United Kingdom
Code tools NoSQL databases (especially MongoDB) or SQL (e.g., Postgres) Understanding of web standards, accessibility and development best practice Bonus Skills Building microservices in C# or Java Integrating LLMs (e.g., LangChain, Vercel AI) Using the GOV.UK Design System and Nunjucks What You’ll Love You’ll join a community that ...

Solutions Engineer

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
Required Experience & Skills 5+ years of cloud-native development experience, preferably Azure (AWS a plus). 5+ years of software engineering experience, mainly in C# and/or Python. Strong knowledge of cloud services (Azure App Services, Functions, AI Services). Proficiency in REST APIs, microservices, and event-driven architectures. ...

Senior Software Engineer

Hiring Organisation
Harrington Starr
Location
City Of London, England, United Kingdom
maintain production code Research and integrate new technologies Foster a culture of engineering excellence and continuous improvement Key Requirements 5+ years’ experience working with C#/.NET Experience developing front and middle office systems Strong SQL skills Experience with cloud-native solutions (Azure or AWS) Knowledge of event-driven, microservices ...

Senior Full Stack Engineer - Technologist

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
ownership of projects and mentoring more junior team members You have strong TypeScript skills, combined with any backend programming language (e.g. Python, Java, C++, C#) You're happy to work with the following tech stack (you don't need experience with all): Elixir, Ember, Elm, Phoenix, LiveView, Python, PostgreSQL ...

Data Engineer

Hiring Organisation
Roc Search
Location
City of London, London, United Kingdom
Synapse Analytics (data warehousing), and Azure Functions (task automation). Azure DevOps: Skilled in CI/CD, pipeline creation, and deployment automation. .NET/C# Development: Comfortable developing backend processes and automation scripts in C#. ...

IT Applications & Development Manager - Law Firm

Hiring Organisation
Totum Partners
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 - 100,000 Annual
Previous experience managing the application and development function within a law firm. Experience with legal application such as iManage or Inprotech. Knowledge of SQL, C#, Python, Java, HTML/CSS, and related development frameworks. Understanding of API integration, data modelling, and application performance tuning. Project management skills are essential ...

.Net Developer (with Capital Markets expereince)

Hiring Organisation
Capgemini
Location
City of London, London, United Kingdom
Your Profile: You should have experience with · Windows Desktop Development: Strong experience in WPF and Windows Forms. · .NET Framework/Core: Deep understanding of C#, .NET architecture. · Database Expertise: Proficiency in SQL Server, handling large transactions, query optimization. · Domain Knowledge: Capital markets (mandatory). · Strong problem-solving and analytical skills. ...

Software Engineer

Hiring Organisation
OTA Recruitment
Location
City of London, London, United Kingdom
Software Engineer (C# .Net) Salary: £55k-£75k (plus very attractive bonus on top) Location: London or Leeds (hybrid/remote options also available) *You will need to come with a good knowledge of the sports analytics/betting industry to be considered for this role* Company description ...

Support Analyst

Hiring Organisation
N P Associates
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £70,000 per annum
Firewall Administration - Cisco ASA Scripting - PowerShell or Python Core knowledge of Linux Systems Administration - Red Hat SQL query writing/Procedural SQL (SQL Server) C#/VB.net or other high level programming language IIS Google Workspace Other Non-Essential But Desirable Skills: Previous experience supporting Futures & Options Trading, Risk ...

Solace Administrator

Hiring Organisation
BGC Group
Location
City of London, London, United Kingdom
audits and vulnerability remediation. Maintain accurate documentation, including topology diagrams, runbooks, and configuration baselines. Support proprietary messaging APIs using C++, Java, Python, and C# programming languages. Provide support for proprietary cache and gateways that integrate applications with the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ ...

AI Solution Architect

Hiring Organisation
SmartChoice International Limited
Location
City of London, London, United Kingdom
expertise in Python , SQL , and modern AI/ML frameworks (TensorFlow, PyTorch). Experience with at least one major backend language (Java, C++, C#, Go). Working knowledge of Typescript/Node.js and modern UI frameworks. Proven track record in AI/ML roles within finance, fintech, or consulting , especially ...

Solutions Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
implementation playbooks What theyre looking for in a Solutions Engineer: 5+ years experience in cloud-native development (Azure preferred) Strong software engineering background (C# and/or Python) Experience with REST APIs, event-driven architecture and microservices Experience with CI/CD pipelines, Git and modern testing practices Strong communication ...

Senior eFX Low Latency Java Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£150000 - £160000/annum
trading desk. Experience in eFX pricing is essential , including price construction and algorithmic trading . You'll work closely with Java and C# developers, business analysts, project managers, and QA teams to deliver high-performance solutions. A strong understanding of FX trading, low latency architecture, and compliance within a trading ...

Front Office Developer - Technical Team Lead

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
functional teams. Desirable Experience: Exposure to CEP engines (Esper) or other live stream aggregation technologies. Familiarity with authentication, authorization, and endpoint security. Experience with C#/HTML/JavaScript and AWS/Terraform/CI-CD pipelines. Why Join CMC Markets? Work on high-performance trading systems that have global ...

Senior Full Stack Engineer (Go + React)

Hiring Organisation
WeDo
Location
City of London, London, United Kingdom
expertise. Key Technical Priorities Strong React expertise Deep JavaScript and TypeScript fundamentals Ability to work across the stack when needed Backed experience (Go, Java, C#, Python) Key Behavioural Priorities Proactively surfaces issues early Shares context without being asked Communicates clearly and calmly Challenges decisions thoughtfully Collaborates closely with product ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
.NET Developer, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates back to 1981; today they have fast become … expand their award winning .NET software development team. We are seeking .NET Developer candidates with experience of either web application development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js ...

Developer - D365 CE

Hiring Organisation
Morson Edge (Technology)
Location
City of London, London, United Kingdom
Dynamics 365 CRM configuration, customisation, and integration capabilities Expertise in integration technologies like Logic Apps, HTTP, JSON Proficiency in programming languages such as .NET, C#, JavaScript Development and Project Leadership Experienced in developing Dynamics plugins and enhancing forms with JavaScript and HTML Demonstrated leadership in CRM implementation projects from start ...

Business Analyst

Hiring Organisation
Lorien
Location
City of London, London, United Kingdom
Experience working directly with traders and quants Knowledge of market data, curve management, and pricing tools Agile delivery experience Technical Skills (Preferred) .NET/C#, Microservices SQL Server, Oracle, MongoDB Some exposure to Murex is a plus Profile Strong communication skills (French is a plus) Hands-on, proactive, able ...

Lead .NET Engineer - Hybrid - £700/day Inside IR35 | WeathTech Platform | Digital Wealth | Azure | Angular | Microservice Architecture

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
transactions and real-time calculations. Collaborate with Product Owners and Tech Leads to translate business requirements into technical solutions. Skills & Experience: Strong experience with C#/.NET Core and associated frameworks. Proven experience building and maintaining financial or investment platforms. Strong Experience with Angular Experience with relational databases (SQL Server ...

Technology Product Owner, AI, Microsoft Stack, Data Bricks, Remote

Hiring Organisation
Carrington Recruitment Solutions Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Europe and the States on occasions. We need someone who has come from a Development background with a hardened skillset in Microsoft Stack Technologies (C# .NET Core) who has then transitioned into Product Ownership. We need someone highly analytical who can understand large Data Sets, Data Bricks and is able ...

.NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £80,000 per annum
.NET Developer, .NET 10.0, C# 14 - Consultancy - London Or Surrey (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is an award winning Microsoft consultancy. They specialise … full project life cycle. .NET Developer applicants should have a skill set that encompasses some or all of the following: .NET, .NET Core, C# and Azure SQL. Knowledge of software development methodologies is of interest (Agile, Scrum). My client will provide training in: .NET 10.0, ASP.NET Core, C# ...

Graduate .NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £60,000 per annum
Graduate .NET Developer - Investment Bank - London (Tech stack: Graduate .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, Graduate .NET Developer) Our client is the world's most respected banking institution. Their story dates … over 10,000 offices in 100 countries. Working in tandem with Microsoft they are about to embark upon one of the largest .NET/C# software development projects to take place within the financial services arena for the past 20 years. Graduate .NET Developer will be working on the design ...