101 to 125 of 154 .NET Jobs in the City of London

to assess code quality, review pull requests, and gauge team productivity effectively and managing teams of 5-15 developers. Experience with modern technologies and data engineering platforms (Java/.NET, AWS/Azure, microservices, CI/CD pipelines, IaC, kafka, Databricks etc) as well as modern enterprise and integration architectural patterns. Excellent communication, influencing, and negotiation skills, comfortably engaging More ❯

Job Title : Staff/Principal/Lead Engineer Industry : SaaS (B2B) Location : South of Croydon (2 days on site (hybrid)) Salary Range: Circa £110k + 30% bonus What you will be doing: Working across several teams, you will work closely More ❯

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 … 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. This backend C# .NET engineering role is: 💸 This role is paying up to £700/day Outside IR35 💻 This hybrid role is 3 days in office 📍 The office is in Central London Technology Stack/Experience: C# NET 5/.Net Core SQL Server Microservices Docker experience (Containerisation) Previous FX Trading experience More ❯

service platform that automates contact operations across voice, email, chat and SMS, enabling humans in the loop where necessary. Overview: We’re hiring for a Product Engineer (backend C# .net core) to join our founding team. The role will focus on backend development that blends email, chat, telephony, voice AI and LLMs. You’ll play a key role in … environment, this role is for you. Key Responsibilities: Communicate clearly, seek clarification when needed. Navigate ambiguity and working with minimal supervision. Develop and maintain backend services using C# and .NET Core. Design and test REST APIs with JWT-based authentication (OAuth is desirable for the future). Write performant SQL for PostgreSQL databases; help design schemas and queries. Build … ChatGPT, and ElevenLabs. Maintain compliance and security in systems handling sensitive financial or personal data. Requirements/experience: 5+ years of software engineering experience. Proven backend experience with C# (.NET Core) in Linux-based production environments. Comfortable navigating ambiguity and working with minimal supervision. Strong SQL knowledge, with experience using PostgreSQL in live systems. REST API development experience; understanding More ❯

C# Developer – FX Options Trading Technology We are currently seeking a skilled C# Developer to join the FX Options Trading Technology team at a leading global investment bank. This is a front-office role, working closely with traders, quants, and More ❯

Lead Full Stack Engineer – .NET/React Location: Central London, hybrid working, 2 days a week onsite. Day rate: £650-£800 (Outside IR35) Duration: 6 months with likely extensions Are you a hands-on technical leader who thrives at the intersection of frontend and backend development? We're looking for a Lead Full Stack Engineer to help shape the … This person will act as the Tech Lead and Product Owner, providing technical leadership and doing planning and delivery, refining requirements, etc. Must haves: Strong experience in C#/.NET to developer backend systems and service development Strong experience in React and TypeScript to deliver performant, scalable frontend apps Strong testing experience – from unit tests to accessibility and security More ❯

be based in London on a hybrid basis, 3 days per week. You will be responsible for the development and support of Business applications using Opentext MBPM (Metastorm), MS .Net platform with C#, JavaScript and Oracle SQL Tasks include understanding business requirements, designing applications/workflows in Opentext MBPM (Metastorm), business data analysis, programming in Visual C#.NET using both More ❯

Benefits pack - Healthcare, enhanced pension and more Company Bonus 1st class career progression and skill up opportunities What do I need? Skills with one or more of - JavaScript, Java, .Net, or Python Experience with version control systems like Git or similar Experience with CI/CD tools - Jenkins, GitLab, Bamboo or similar Highly collaborative and working inside of an More ❯

5+ years of experience in application security, penetration testing, or software security engineering. Strong knowledge of secure coding principles in one or more languages (e.g., Python, Java, JavaScript, Go, .NET). Hands-on experience with SAST, DAST, SCA and security automation in CI/CD pipelines. Familiarity with cloud security (AWS, Azure, GCP) and container security (Docker, Kubernetes). More ❯

requirements. Collaborate with business analysts, technical leads, and end users to understand functional requirements and deliver robust technical solutions. Customize and extend OpenLink modules using AVS, JVS, OpenComponents, and .NET/Java-based extensions. Develop scripts, reports, and workflows across the trade lifecycle—from trade capture to settlement and accounting. Optimize system performance, conduct root cause analysis, and resolve More ❯

free up established team members to work on new dev, you will be working on a variety of apps. This is a 6 monthly rolling assignment. Key Skills: C# .net Visual Studio SQL Server T-SQL Kafka React.js Front-office/back-office trading applications: Fidessa, TT, CQG. GMI, ETDs, CFDs, fixed income, FX, trade lifecycle Regulatory reporting (MiFIR More ❯

free up established team members to work on new dev, you will be working on a variety of apps. This is a 6 monthly rolling assignment. Key Skills: C# .net Visual Studio SQL Server T-SQL Kafka React.js Front-office/back-office trading applications: Fidessa, TT, CQG. GMI, ETDs, CFDs, fixed income, FX, trade lifecycle Regulatory reporting (MiFIR More ❯

front on tech strategy while still being technically credible and curious – you're comfortable diving deep when needed. Proficient across a range of tools and technologies, ideally including: AWS, .NET, Node, TypeScript, Terraform, CI/CD pipelines, and TDD. Comfortable navigating ambiguity, solving complex problems across people, processes and platforms. Passionate about performance, operational excellence and continuous improvement. Why More ❯

Our client is a leading financial institution seeking an IT Support & Applications Developer professional to join their IT team. This dual-role opportunity combines hands-on software development with critical IT support, playing a central part in maintaining system stability More ❯

Job Title: Senior OneStream Developer Employment type: Permanent Location: London – Hybrid working Salary: Negotiable As part of a significant Finance Transformation programme, we have an opportunity for a OneStream Developer to join our client and be part of their OneStream More ❯

Insight Global is hiring an Application Support Engineer for a financial services client based in London. This is an Inside IR35 contract to hire and is onsite 2x a week in London. Must Haves: Technical Skills: Hands on experience in More ❯

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. … 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. More ❯

Lead Software Engineer Tech Stack: C#, .NET, SQL, Azure, Docker, Bloomberg, Fidessa London - Onsite Salary Range: £80,000 - £135,000 Harrington Starr has partnered with a boutique Investment Bank, with decades of experience and exceptional performance. They are currently seeking to hire a Senior/Lead Engineer possessing strong experience developing front office applications and systems, integrating with 3rd … the front office, with daily interaction with Traders and a host of stakeholders across all levels of the business. Responsibilities: Design and develop new front office application utilising C#, .NET Working on internal systems to maintain quality and standards Integration of real-time and historical data with 3rd party APIs - Bloomberg, FactSet and Fidessa Utilising historical data for analytics … knowledge Exceptional bonus and benefits (health and dental care, life insurance) Working flexibility Key Requirements: BSc Computer Science or related Mathematical degree Excellent knowledge and experience developing with C#, .NET Strong experience with 3rd party APIs Good experience developing front office systems, interacting with various stakeholders Excellent communication Un-restricted right to work in the UK If you would More ❯

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 … 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 opinions … 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 ❯

that wants the accountability and softer skill development of a lead role without sacrificing technical skills. The person- We’re searching for someone that either has broad technical exposure (.Net/Java/Python) or a specialism in backend language and a willingness to learn more technologies. You’ll have experience either managing/leading teams or mentoring colleagues … challenge- you’ll have opportunity to plug gaps you didn’t know you had via learning and development. The tech at the Lead Software Developer’s disposal is: Java, .Net or Python Systems, e.g. Git CI/CD tools, such as Bamboo, Jenkins, Gitlab etc in order to streamline delivery of new features and fixes Automation Testing frameworks and More ❯

are suitably tested and impacts are considered. Ensure supportability of solutions Follow the team procedures for release control, code review, deployment, source code management and architectural governance. Key Skills .Net C# SQL Servers Microservices Consul Octopus Commodities Investment banking/FS If you find this opportunity intriguing and aligning with your skill set, we welcome the submission of your More ❯

Lead or Senior Engineer role. Proven experience delivering technology solutions within retail, investment, or digital banking environments. Strong hands-on experience with one or more of the following: Java, .NET, Python, or Node.js. Experience with cloud platforms (e.g., AWS, Azure, GCP), containerization (Docker, Kubernetes), and microservices architecture. Deep understanding of RESTful APIs, event-driven architecture, and secure software development More ❯

years’ commercial experience on the sell- or buy-side. Strong programming skills in C#. C++ experience would also be desirable but not a pre-requisite. Comprehensive exposure to the .NET ecosystem, in particular desktop application frameworks (WPF, WinForms, Blazor). Experience within the field of systematic trading would be highly regarded. Experience within fixed income (rates) products Minimum Master More ❯

Technical Project Manager ?" Bank ?" City of London As the Technical Project Manager, you play an integral role in a high performing team to deliver technical projects on time, to budget and that achieve both the project objectives and increase internal More ❯

environment is 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 More ❯