C# Jobs in the City of London

126 to 150 of 219 C# Jobs in the City of London

Lead AI Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
trg.recruitment
NLP/OCR projects with unstructured data Experience managing or mentoring engineers Bonus points for: Experience in regulated domains Knowledge of semantic search, graph/vector databases Java or C# background and understanding of SOLID principles 📩 Interested? Message me here or email mmatysik@trg-uk.com More ❯
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Software Engineer

City of London, London, United Kingdom
Oho Group Ltd
focus primarily on backend development, tackling complex and technically challenging work from day one. Who You Are: Strong backend development experience (we're open to any OOP languages including C#, Java, Python, C++, Go, or similar). Comfortable shipping software at scale and working with cloud platforms (AWS, Azure, GCP). Thrive in a fast-moving startup environment. Motivated by More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
developrec
forefront of new technologies and methodologies Evaluate application performance to ensure optimal user experiences Document workflows and track performance metrics Manage and resolve incidents Required Skills & Experience: Expertise in C# Proficient with .NET Core and later (currently using .NET8) Hands-on experience with Azure and microservices Strong knowledge of API development and integration Familiarity with Terraform Solid experience in unit More ❯
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Guidewire Developer

City Of London, England, United Kingdom
Pioneer Search
work closely with the Scrum and broader software teams. Requirements: ACE Certified in Guidewire Experience onboarding and integrating Guidewire for a specialty insurer Proficiency in coding with GOSU, Java, C#, or Python SQL and other relational database experience, along with supporting database applications CI/CD and DevOps experience for test automation and cloud deployment Why Join this business? Innovative More ❯
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Test Automation Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Addition+
and reliability, leveraging modern tools and languages to streamline and scale quality assurance processes Build and maintain robust automated test scripts using languages such as Java, Python, JavaScript, or C#, ensuring test coverage across critical application components Accurately log, track, and manage defects using established defect management systems, collaborating with developers to drive timely resolution and continuous improvement Main Skills More ❯
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Platform Reliability Engineer

City of London, London, United Kingdom
Jefferies
ability to multitask and prioritize; ability to work under pressure. Experience in software development: automation-related experience desired. Scripting languages such as PowerShell, python or compiled languages such as C#, JAVA are most relevant, but others are acceptable. Extensive experience with Microsoft SQL server or any other DBMS including performance tuning. Deep understanding of operating system level concepts such as More ❯
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Lead Front End Admin Developer - SportsTech

City of London, London, United Kingdom
Hybrid / WFH Options
Carousel Consultancy Ltd
JavaScript frameworks such as Bootstrap Angular 14, RXJS, Ajax, SignalR Visual studio code XML, JSON Experience using source control applications (DevOps with GIT currently used) Version Control/Management C# basic understanding is preferable but not essential Dynamic and personable nature with the desire for continuous learning and development Ability to take on a fresh approach Passion for sports and More ❯
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2nd Level Application Support Engineer

City of London, London
Nexus Jobs Limited
real-time trading environment. Knowledge of support applications that use high-performance messaging/middleware. Strong analytical, and verbal and written communication skills. Strong Knowledge of FIX protocol. Java, C#, C++ development skills set, nice plus. Personal Attributes Good communication skills, including the ability to write clearly. Able to function effectively as a member of a team. Proactive with respect More ❯
Employment Type: Permanent
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Power Platform and Copilot Architect

City of London, London, United Kingdom
Capgemini
Experience : Experience in integrating Power Platform with other systems using Azure integration services or other API management platforms. Programming Proficiency : Skilled in one or more programming languages such as C#, Python, or JavaScript. AI Knowledge : Familiarity with AI concepts and frameworks, including Large Language Models(LLM), RAG, Prompt Engineering, Azure Cognitive Services and AI Builder. DevOps Knowledge Certifications : Relevant certifications More ❯
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C++ Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Adecco
skills. Added Bonus if You Have: Experience with Oracle. Familiarity with event-driven distributed messaging systems (e.g., Kafka). Knowledge of financial markets and the trade lifecycle. Experience with C# and any GUI development. Why Join Us? In addition to a competitive daily rate, our client offers a range of perks designed to support a balanced work-life experience, including More ❯
Employment Type: Contract
Rate: £700 - £750/day
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Solution Architect

City of London, London, United Kingdom
FintechOS
experience optimization. Communication skills with a high degree of comfort speaking with management, product/business stakeholders, and developers. Knowledge of programming languages and development frameworks (e.g., Node.js, Java, C#, Python, Go, etc.). Familiarity with insurance regulatory requirements (e.g., Solvency II, IFRS 17) and how they impact technology solutions. Experience with data integration, modelling, and governance for insurance-specific More ❯
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Remote Dynamics NAV/BC Developer - SaaS Saving the NHS £Millions

City, London, United Kingdom
Hybrid / WFH Options
RecruitmentRevolution.com
requirements into clear technical specifications and solutions. • Strong documentation skills for technical requirements and custom development specs. • Familiar with Microsoft SQL Server, XML, APIs, and other OOP languages (e.g., C#, Java). Tooling & Standards: • Experienced with DevOps, GitHub, and automated testing tools. • Knowledge of ISO9001 and ISO27001 standards and integrated management systems. Consultancy & Mentoring: • Consultancy experience in Microsoft Dynamics NAV More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Software Engineer C#/C++

City of London, London, United Kingdom
Trayport
releases. Quality is of paramount importance as correct behaviour and stability are key to our client’s business. Responsibilities Design efficient and scalable implementations of new features in C C# in a highly concurrent environment Ensuring high quality and maintainable, unit tested code Expanding and maintaining our core execution platform and our continuous integration and automation frameworks in C C# … Developing new tooling in C++/C#/Powershell Assistance with client reported issues. Skills and Experience Essential: C++ C# Multithreaded code Desirable: C++ 17 and later Microsoft SQL Server Powershell More ❯
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C# | .NET | SQL | Commodity / FX Trading | £700/Day OUTside IR35 | 6-month | Hybrid LDN

City of London, London, United Kingdom
Hybrid / WFH Options
VirtueTech Recruitment Group
C# | .NET | SQL | Commodity/FX Trading | £700/Day OUTside IR35 | 6-month | Hybrid LDN Our client is looking for a C# .NET Engineer for a 6-month rolling project, working at a leading Cross Asset Trading and Broking house. This client deals in both physical and non-physical commodities as well as acting as a risk manager for … trading arm for the business, the key similarities between FX and physical commodities have made the move instinctive for our client. This has resulted in the need for this C# developer to join them as they set up a new Digital hub within the company. This developer will be focused on the BACK END exclusively and come into the team … as an established FX specialist developer as well as leading and up-skilling peers around them in the domain knowledge on FX. This C# .NET role will require previous experience in microservices architecture, Real-Time systems, strong SQL server, and containerisation through docker. Having previous commercial experience in the FX Trading space is going to be essential for this role. More ❯
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Full Stack Engineer | C#, .NET, TypeScript, React

City of London, London, United Kingdom
Wilson Brown
Full Stack Software Engineer SaaS | Early-Stage Start-Up | Experienced Founders | C# | .NET | TypeScript | React | Azure I’m hiring a Full Stack Software Engineer to join one of the most ambitious, talented, and genuinely brilliant teams I’ve worked with. This is a rare opportunity to work directly with proven founders on an early-stage product with huge potential. They … and the team gets massive value from in-person collaboration 💰 Salary: Up to £100,000 (depending on experience) + meaningful equity - it's a brilliant time to join 🛠 Tech: C#, .NET, TypeScript, React, Azure 🧭 Interview Process: 3 stages. We keep things fast, focused, and respectful of your time. You'll be a Full Stack Software Engineer in a small, fast … paced team, working across frontend and backend to ship real features using C#, .NET, React, and Azure . You must be confident across the stack - this role offers real autonomy and end-to-end ownership. This isn’t just an engineering role. You’ll be actively involved in commercial decisions, product strategy, and user conversations - not just handed tickets. We More ❯
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Staff Engineer (C#/.Net/Azure)

City of London, London, United Kingdom
WeDo
agnostic in their approach is encouraged, my client are heavily engrained in the Microsoft ecosystem and its key you have a wealth of experience across the following tooling;- Tech : C# Azure API Design and Development (REST) Event-driven architecture/Microservices at Scale Messaging Architecture (Service Bus) K8s Excellent communication skills across Senior Stakeholders and various levels of software engineer More ❯
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London - Tech for good opportunity! - Health Tech - Senior Product Engineer (Ruby, PHP, Python and C#) Full Stack / Backend - 2 roles available - Up to £100k+

City of London, London, United Kingdom
Opus Recruitment Solutions
and startup experience, who can go to their office in central London, 3 days a week. They are technology agnostic - considering various backend technologies including Ruby, PHP, Python and C#, with JavaScript on the frontend. They are looking for backend-focused or full-stack developers. They have a very competitive budget of £70,000-110k (negotiable depending on experience More ❯
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Fixed Income Analyst Developer C# (AVP)

City of London, London, United Kingdom
Hybrid / WFH Options
SMBC Group
positive, productive and motivating. Business Area The Front office Fixed Income software development team requires an agile and versatile specialist and team player with extensive expertise in .Net/C# software. The role requires an experienced individual who is comfortable to work in close partnership with a variety of front office stakeholders, globally. The team member is expected to be More ❯
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Contract - Senior/Principal Java Developer

City of London, London, United Kingdom
Source Technology
stabilisation/rescue project is expected to last at least a year, but the successful candidate will then be involved in the replatforming project. The replatforming project will be C#, and whilst you don't need C# experience to be successful, you should be happy to pick up the language moving forward for this role to be a fit. You … squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems in the finance industry (all areas of finance considered) Strong background in Java and ideally C# Some front-end exposure in Angular - this is mandatory, but doesn't need to be recent or extensive Comfortable working with legacy systems and large enterprise environments Confident in leading More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Peaple Talent
London. This is an opportunity not just to code but to innovate. We need someone who can approach challenges strategically and thrive in mastering new tasks. While expertise in C# is important, your flexibility and passion for learning are what will make you stand out. Key Responsibilities: Lead technical projects by applying your expertise in C# and other technologies to … continuous learning and technical growth. Profile: A forward-thinking, adaptable engineer passionate about creating cutting-edge solutions. Proactive and self-motivated, thriving in a small, agile team. Skilled in C# and eager to expand your technical expertise. An advocate for engineering best practices and excellence. Comfortable navigating fast-paced, dynamic environments. Dedicated to continuous learning and personal development. Strong in More ❯
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Founding Engineer

City of London, London, United Kingdom
Burns Sheehan
Founding Software Engineer (AI, Consumer Facing Product) | C#/.NET, Python, TypeScript, GO 📍Location: London, 2-3 days a week on site 💸Salary: £90-120,000 + 80% equity package 📈Well-funded: $4M seed round at $20M valuation ⚙️Required Skills: Full stack development, C#/.NET, Azure, TypeScript, Python Join a stealth startup using AI to revolutionise how people shop … real users providing feedback. The founders are experienced operators who've been through the 0-1 journey before and know how to build products people love. Tech Stack: Primarily C#/.NET and Azure, Python for data work, Go microservices, React Native/TypeScript mobile frontend. They're open to engineers from any language background, especially if you have strong … year vesting). Location: Central London, 2-3 days a week, core hours 10am-4pm with lunch provided on office days. Founding Software Engineer (AI, Consumer Facing Product) | C#/.NET, Python, TypeScript, GO More ❯
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Senior Product Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Opus Recruitment Solutions
London - Tech for good opportunity! - Health Tech - Senior Product Engineer (Ruby, PHP, Python and C#) Full Stack/Backend - 2 roles available - Up to £100k+ Location: London Hybrid: 3 days About the Company I am working with a new scaleup client in the exciting healthtech space that has helped over 1 million patients to date, with applications in subscription, fitness … and startup experience, who can go to their office in central London, 3 days a week. They are technology agnostic - considering various backend technologies including Ruby, PHP, Python and C#, with JavaScript on the frontend. They are looking for backend-focused or full-stack developers. They have a very competitive budget of £70,000-110k (negotiable depending on experience More ❯
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Application Architect

City of London, London, United Kingdom
Hybrid / WFH Options
Anson McCade
continue to see continuous growth and success. The Ideal Application Architect will have; Full eligibility for SC Clearance. Demonstrable experience in one or more common programming languages i.e. Java, C# or Javascript. Experience in agile development methodologies, such as SCRUM or SAFe. Experience working with cloud platforms (AWS, AZURE, GCP etc.). Knowledge of security concepts, including secure design and More ❯
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BI Developer (Power BI) - Up to £800 P/D - London/Hybrid

City of London, London, United Kingdom
Hybrid / WFH Options
Hunter Bond
Power BI Strong SQL Experience with NoSQL, MongoDB etc Strong experience/knowledge of Linux/Unix Experience working with Modern cloud technologies Experience with any other programming language - C#, Python, java etc! If you are interested, please apply below, or reach out directly to my email at: sberry@hunterbond.com More ❯
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Data Engineer - Up to £75k + Bonus

City of London, London, United Kingdom
Gaming Business
decisions across the business. You'll be hands-on with modern Azure data tools and play a key role in maintaining and developing .NET-based solutions — so experience with C#, along with Python, SQL Server, and working in an Azure environment, is highly desirable. Experience with CI/CD pipelines and Terraform would also be a bonus. You'll be More ❯
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C#
the City of London
10th Percentile
£57,500
25th Percentile
£66,250
Median
£85,000
75th Percentile
£115,000
90th Percentile
£126,250