Senior C# Software Engineer Job Vacancies

76 to 96 of 96 Senior C# Software Engineer Jobs

Senior Software Engineer (C#)

City of London, London, United Kingdom
Trayport
The Role Trayport is actively looking for a Senior Software Developer to join our team for the design and development of our flagship data analytics platform where you will contribute to System Architecture, aid colleagues to help coordinate our projects and review code too. Our platform … market data feeds that together add hundreds of millions of data points to our dataset every day. We encourage ownership across the entire software lifecycle, and will value your input on each stage. We take an iterative approach to solve problems and continually improve our product. If you … hear from you. Responsibilities Contribute to System Architecture, Aid colleagues to help coordinate our projects Peer review code The Person Strong working knowledge of C# or Kotlin Experience writing efficient, concurrent .NET code Experience working on distributed systems Strong knowledge of Kubernetes and Kafka Experience with Git, and Deployment More ❯
Posted:

Senior Software Engineer (C#)

london, south east england, united kingdom
Trayport
The Role Trayport is actively looking for a Senior Software Developer to join our team for the design and development of our flagship data analytics platform where you will contribute to System Architecture, aid colleagues to help coordinate our projects and review code too. Our platform … market data feeds that together add hundreds of millions of data points to our dataset every day. We encourage ownership across the entire software lifecycle, and will value your input on each stage. We take an iterative approach to solve problems and continually improve our product. If you … hear from you. Responsibilities Contribute to System Architecture, Aid colleagues to help coordinate our projects Peer review code The Person Strong working knowledge of C# or Kotlin Experience writing efficient, concurrent .NET code Experience working on distributed systems Strong knowledge of Kubernetes and Kafka Experience with Git, and Deployment More ❯
Posted:

Senior Software Engineer (C#)

slough, south east england, united kingdom
Trayport
The Role Trayport is actively looking for a Senior Software Developer to join our team for the design and development of our flagship data analytics platform where you will contribute to System Architecture, aid colleagues to help coordinate our projects and review code too. Our platform … market data feeds that together add hundreds of millions of data points to our dataset every day. We encourage ownership across the entire software lifecycle, and will value your input on each stage. We take an iterative approach to solve problems and continually improve our product. If you … hear from you. Responsibilities Contribute to System Architecture, Aid colleagues to help coordinate our projects Peer review code The Person Strong working knowledge of C# or Kotlin Experience writing efficient, concurrent .NET code Experience working on distributed systems Strong knowledge of Kubernetes and Kafka Experience with Git, and Deployment More ❯
Posted:

Senior Software Engineer (C#)

london (city of london), south east england, united kingdom
Trayport
The Role Trayport is actively looking for a Senior Software Developer to join our team for the design and development of our flagship data analytics platform where you will contribute to System Architecture, aid colleagues to help coordinate our projects and review code too. Our platform … market data feeds that together add hundreds of millions of data points to our dataset every day. We encourage ownership across the entire software lifecycle, and will value your input on each stage. We take an iterative approach to solve problems and continually improve our product. If you … hear from you. Responsibilities Contribute to System Architecture, Aid colleagues to help coordinate our projects Peer review code The Person Strong working knowledge of C# or Kotlin Experience writing efficient, concurrent .NET code Experience working on distributed systems Strong knowledge of Kubernetes and Kafka Experience with Git, and Deployment More ❯
Posted:

Senior Software Engineer with C# .net Fixed Income FX

City of London, London
Nexus Jobs Limited
C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# … pricing APIs. Maintaining the company’s daily operation on the existing platforms. Essential skills :- Minimum 3 to 5 years experience of Microsoft web technologies ( C#, ASP.NET Core MVC ) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders:- sales, brokers, middle office, external vendors. Ability to produce More ❯
Employment Type: Permanent
Posted:

Senior Software Engineer with C# .net Fixed Income FX

London, United Kingdom
Onyx-Conseil
Job Description C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with … C# .NET. The Client would like to meet candidates ideally with some understanding of Trading Floor projects to include Fixed Income, Risk Management, Swap Options, and FX. You need to be resilient as you will be working closely with traders and developing financial trading systems, so an understanding of … pricing APIs. Maintaining the company's daily operation on the existing platforms. Essential skills: Minimum 3 to 5 years experience of Microsoft web technologies (C#, ASP.NET Core MVC). Relational database experience (SQL Server). Proactively able to build relationships with stakeholders: sales, brokers, middle office, external vendors. Ability More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - Backend (C#)

London, England, United Kingdom
ZipRecruiter
Job Description The Role We’re looking for Software Engineers to join our Joule Direct team, to help us build and improve our high-throughput, low-latency energy trading platform. You’ll be working with some amazing technologists to solve complex problems. For us, teamwork is everything. We … code to reduce latency Do some design/planning with a colleague and raise an RFC Our Tech Stack Our services are written with C# on .NET 8 We use a fair bit of SQL Server, Kafka and RabbitMQ Azure DevOps. We are big fans of Azure Pipelines! Some … including planning, implementation and delivery Pairing with other engineers to share and expand your knowledge Contributing to technical discussions Skills & Experience Strong knowledge of C# or any popular programming Excellent communication skills Can write efficient, concurrent code Knowledge of how distributed systems work Experience with Git, TeamCity and Octopus More ❯
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Senior Software Engineer - C#, Cloud - Cambridge

Cambridge, Cambridgeshire, UK
Mayflower Recruitment Ltd
Cambridge (2/3 days onsite) You’ll be a good fit if You are an experienced .NET developer that is highly proficient in C# You can demonstrate that you can write clean, maintainable code You have excellent communication and interpersonal skills You have worked on a large code … and Responsibilities The successful candidate will: Develop new features and products working from customer requirements. Produce clean, maintainable, and well tested code (primarily in C#). Employ best practices (and help to maintain them through technical reviews and mentoring). Analyze problems discovered by QA or product support and … and experience of modern software development methodologies. Preferred Qualifications and Skills Successful candidates must have A high level of technical competency in C# and the .NET framework Understanding and experience of applying modern software best practices An ability to design and write clean, maintainable code. More ❯
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Senior Software Engineer – C#, Cloud - Cambridge

Cambridge, south west england, united kingdom
Mayflower Recruitment Ltd
Cambridge (2/3 days onsite) You’ll be a good fit if You are an experienced .NET developer that is highly proficient in C# You can demonstrate that you can write clean, maintainable code You have excellent communication and interpersonal skills You have worked on a large code … and Responsibilities The successful candidate will: Develop new features and products working from customer requirements. Produce clean, maintainable, and well tested code (primarily in C#). Employ best practices (and help to maintain them through technical reviews and mentoring). Analyze problems discovered by QA or product support and … and experience of modern software development methodologies. Preferred Qualifications and Skills Successful candidates must have A high level of technical competency in C# and the .NET framework Understanding and experience of applying modern software best practices An ability to design and write clean, maintainable code. More ❯
Posted:

Senior Software Engineer – C#, Cloud - Cambridge

West Wratting, England, United Kingdom
Mayflower Recruitment Ltd
Cambridge (2/3 days onsite) You’ll be a good fit if You are an experienced .NET developer that is highly proficient in C# You can demonstrate that you can write clean, maintainable code You have excellent communication and interpersonal skills You have worked on a large code … and Responsibilities The successful candidate will: Develop new features and products working from customer requirements. Produce clean, maintainable, and well tested code (primarily in C#). Employ best practices (and help to maintain them through technical reviews and mentoring). Analyze problems discovered by QA or product support and … and experience of modern software development methodologies. Preferred Qualifications and Skills Successful candidates must have A high level of technical competency in C# and the .NET framework Understanding and experience of applying modern software best practices An ability to design and write clean, maintainable code. More ❯
Posted:

Senior Software Engineer - C#, Azure - Cambridge / Hybrid

Cambridge, Cambridgeshire, UK
Hybrid / WFH Options
Mayflower Recruitment Ltd
Cambridge (2/3 days onsite) You’ll be a good fit if You are an experienced .NET developer that is highly proficient in C# You can demonstrate that you can write clean, maintainable code You have excellent communication and interpersonal skills You have worked on a large code … and Responsibilities The successful candidate will: Develop new features and products working from customer requirements. Produce clean, maintainable, and well tested code (primarily in C#). Employ best practices (and help to maintain them through technical reviews and mentoring). Analyze problems discovered by QA or product support and … and experience of modern software development methodologies. Preferred Qualifications and Skills Successful candidates must have A high level of technical competency in C# and the .NET framework Understanding and experience of applying modern software best practices An ability to design and write clean, maintainable code. More ❯
Posted:

Senior Software Engineer - Blazor, Azure, C#

London, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Category: Other EU work permit required: Yes Job Views: 1 Posted: 25.05.2025 Expiry Date: 09.07.2025 Job Description: Front End (Blazor) Engineers (Mid and Senior roles … open) - Southwest HQ – Remote First Working We are looking for Front End (Blazor) Engineers - Mid and Senior level Software Engineers (C#/Azure/API) to join our team at Southwest HQ with a remote-first approach. This is a 12-month FTC role with … and quality while maximizing team throughput through a strong CI/CD mindset. Your effective communication skills will enable you to work alongside senior team members, taking lead roles in architectural and technical design discussions, and presenting during team refinement sessions. Technical Stack: Front End: Blazor, Microservices, RESTful More ❯
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Senior Software Engineer C# / .Net

Manchester, United Kingdom
Cloud Imperium Games Limited
Job Description: Senior Tools Programmer at Cloud Imperium Games We are a crowdfunded company with a dedicated and enthusiastic community of backers, committed to creating the "Best Damn Space Sim Ever". We value exceptional and diverse talent. The Senior Tools Programmer (based in Manchester) will … estimates and support the Tools Team on all projects. Continuously improve user experience, capabilities, and performance. Mentor junior team members. Qualifications: Proven experience in C#, WPF or Blazor, and SQL in a commercial environment. Passion for creating user-friendly tools. Ability to work well in a team and handle More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - Leading Global FinTech - React/ TypeScript/ Node/ C# - Hybrid in London (

City of London, England, United Kingdom
Hybrid / WFH Options
Opus Recruitment Solutions
I am supporting a leading global FinTech based in London with their search for a Senior Software Engineer. You'll join one of their core engineering squads and work on one of their core platforms used by their global customer base. You'll be brought on … the project + all future stuff that comes your way (and there will be a lot!). They are looking for a passionate Engineer who can really drive the product and communicate/liaise with various stakeholders in the company. You will need to be a GREAT COMMUNICATOR … You will need to have an in depth understanding of: React.js - 6+ years (Solid understanding of fundamentals & up to date with latest tools) TypeScript C# .Net Node.js Azure What is also needed: Good Communication skills Stakeholder Management Fintech/Finance experience is a plus They have an amazing office More ❯
Posted:

Senior Software Engineer - Leading Global FinTech - React/ TypeScript/ Node/ C# - Hybrid in London (2 days a week) - £100k

City of London, London, United Kingdom
Hybrid / WFH Options
Opus Recruitment Solutions
I am supporting a leading global FinTech based in London with their search for a Senior Software Engineer. You'll join one of their core engineering squads and work on one of their core platforms used by their global customer base. You'll be brought on … the project + all future stuff that comes your way (and there will be a lot!). They are looking for a passionate Engineer who can really drive the product and communicate/liaise with various stakeholders in the company. You will need to be a GREAT COMMUNICATOR … You will need to have an in depth understanding of: React.js - 6+ years (Solid understanding of fundamentals & up to date with latest tools) TypeScript C# .Net Node.js Azure What is also needed: Good Communication skills Stakeholder Management Fintech/Finance experience is a plus They have an amazing office More ❯
Posted:

Senior Software Engineer - Leading Global FinTech - React/ TypeScript/ Node/ C# - Hybrid in London (2 days a week) - £100k

London Area, United Kingdom
Hybrid / WFH Options
Opus Recruitment Solutions
I am supporting a leading global FinTech based in London with their search for a Senior Software Engineer. You'll join one of their core engineering squads and work on one of their core platforms used by their global customer base. You'll be brought on … the project + all future stuff that comes your way (and there will be a lot!). They are looking for a passionate Engineer who can really drive the product and communicate/liaise with various stakeholders in the company. You will need to be a GREAT COMMUNICATOR … You will need to have an in depth understanding of: React.js - 6+ years (Solid understanding of fundamentals & up to date with latest tools) TypeScript C# .Net Node.js Azure What is also needed: Good Communication skills Stakeholder Management Fintech/Finance experience is a plus They have an amazing office More ❯
Posted:

Senior Software Engineer (C#), Fixed Income Hedge Fund, London

London, England, United Kingdom
Vodafone
and portfolio management teams, and applying machine learning techniques throughout the investment process. The role involves working directly with quant analysts to develop software and tools supporting … research and development projects, as well as larger projects supporting the wider business. The teams primarily work in Python, with the core system in C#, so candidates should be comfortable working in these languages or similar C-style languages such as C++, Java, or Go. The fund fosters a … in systematic trading is highly regarded but not essential. Experience with fixed income (interest rates) products is an advantage but not essential. Proficiency in C#, C++, Java, Go, or Python. At least 5 years of relevant work experience (more is acceptable). A positive, pragmatic attitude. Due to demand More ❯
Posted:

Senior Software Engineer (C#)

London, England, United Kingdom
Hybrid / WFH Options
Goodlord
whatever you prefer!) About the team that drives our platform We're a PropTech scale-up who have created a revolutionary, cloud-based software platform to bring together agents, landlords and tenants online and process all the paperwork electronically. Our small, self-organising squads build the platforms and … we pride ourselves on utilising modern technologies to build scalable, efficient, and reliable systems. Our referencing backend is powered by Azure Functions, written in C#, enabling serverless and event-driven architectures. We use Azure Event Grid for seamless event-based messaging and Cosmos DB for data storage. We also … developers Continuously develop your skillset via tailored professional development objectives and budget What we need from you: Significant experience building web-based applications using C# Demonstrable skills in domain modelling using Object Oriented techniques and principles Proficient in writing automated tests using frameworks such as NUnit, MSTest, or xUnit More ❯
Posted:

Senior Software Engineer (C#)

Sheffield, Yorkshire, United Kingdom
Hybrid / WFH Options
Goodlord
whatever you prefer!) About the team that drives our platform We're a PropTech scale-up who have created a revolutionary, cloud-based software platform to bring together agents, landlords and tenants online and process all the paperwork electronically. Our small, self-organising squads build the platforms and … we pride ourselves on utilising modern technologies to build scalable, efficient, and reliable systems. Our referencing backend is powered by Azure Functions, written in C#, enabling serverless and event-driven architectures. We use Azure Event Grid for seamless event-based messaging and Cosmos DB for data storage. We also … developers Continuously develop your skillset via tailored professional development objectives and budget What we need from you: Significant experience building web-based applications using C# Demonstrable skills in domain modelling using Object Oriented techniques and principles Proficient in writing automated tests using frameworks such as NUnit, MSTest, or xUnit More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer (C#,JavaScript)

Basingstoke, England, United Kingdom
Vonage
Vonage Engineering Mission: Vonage is the emerging leader in the $100B+ cloud communications platform (CPaaS) market. Customers like Airbnb, Viber, Whatsapp, Snapchat, and many others depend on our APIs and SDKs to connect with their customers all over the world. More ❯
Posted:

Snr Software Engineer (C# ASP.NET Angular) - London hybrid

London, England, United Kingdom
Hybrid / WFH Options
ZipRecruiter
Job Description Full Stack C#/Angular Developer - London (3 days a week) - £90-95K + Bonus & Benefits Senior Full Stack Developer with C#, .NET, and Angular is required to join a small, talented, and dynamic team in London (3 days a week onsite) playing … hedge fund, with a 30-year track record of success, is looking for an experienced Full Stack Engineer to help migrate legacy C# applications to Angular and contribute to the development of cutting-edge financial systems. You'll work in a collaborative environment, leveraging your skills in … . NET, C#, Angular, SQL Server, and gaining exposure to RabbitMQ, APIs, and cloud technologies. - Competitive salary of £90-95K - 7% pension, private healthcare, and significant annual bonuses - Hybrid working: Tues/Wed/Thurs in-office - Long-term stability and career growth in an enjoyable office culture More ❯
Posted:
Senior C# Software Engineer
10th Percentile
£60,500
25th Percentile
£61,250
Median
£67,250
75th Percentile
£80,063
90th Percentile
£81,300