Senior Software Engineer – C# / .NET, Team Lead

Caxton Associates

Senior Software Engineer leading a C#/.NET team at Caxton Associates. Building systems for trading, compliance, and operations while collaborating globally.

Posted 4/24/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies

AWSDistributed SystemsDockerEC2.NETPythonSQL

About the role

Key responsibilities & impact

Lead, mentor, and develop a small team of engineers
Design and build scalable, maintainable distributed systems in C#/.NET
Own delivery across multiple concurrent projects and priorities
Drive best practices in testing, CI/CD, and software quality
Collaborate with technical and business stakeholders across regions
Contribute to architecture and long-term platform direction
Act as the technical point of contact for the team

Requirements

What you’ll need

8+ years of software development experience with C# and the .NET stack
Proven experience leading or mentoring software engineers
Strong track record building reliable, production-grade systems
Solid understanding of distributed systems and architectural patterns (event-driven, layered, client-server)
Experience with Python and its ecosystem
Experience with CI/CD and modern development workflows
Strong SQL and relational database skills
Ability to manage multiple priorities effectively
Strong communication skills with both technical and non-technical stakeholders
Exposure to financial products and market data (e.g. Bloomberg, Reuters)
Displays and operates at the highest degree of ethics and integrity
**The following would be highly beneficial:**
Knowledge of finance, markets, order to trade life cycle
Experience with Bloomberg market data APIs like SAPI, B-PIPE, Desktop API
Experience with Docker and AWS (EC2, RDS)
Bachelor of Science Degree in Computer Science, Mathematics or a related field

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Caxton Associates Website LinkedIn All Job Openings 201 - 500 employees Senior Software Engineer – C# / .NET, Team Lead 🔥 32 minutes ago 🏢🏡 London – Hybrid ⏰ Full Time 🟠 Senior 🔙 Backend Engineer AWS Distributed Systems Docker EC2 Python SQL .NET Apply Now Find Hiring Managers Customize resume for this job Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Lead, mentor, and develop a small team of engineers
Design and build scalable, maintainable distributed systems in C#/.NET
Own delivery across multiple concurrent projects and priorities
Drive best practices in testing, CI/CD, and software quality
Collaborate with technical and business stakeholders across regions
Contribute to architecture and long-term platform direction
Act as the technical point of contact for the team 🎯 Requirements
8+ years of software development experience with C# and the .NET stack
Proven experience leading or mentoring software engineers
Strong track record building reliable, production-grade systems
Solid understanding of distributed systems and architectural patterns (event-driven, layered, client-server)
Experience with Python and its ecosystem
Experience with CI/CD and modern development workflows
Strong SQL and relational database skills
Ability to manage multiple priorities effectively
Strong communication skills with both technical and non-technical stakeholders
Exposure to financial products and market data (e.g. Bloomberg, Reuters)
Displays and operates at the highest degree of ethics and integrity
**The following would be highly beneficial:**
Knowledge of finance, markets, order to trade life cycle
Experience with Bloomberg market data APIs like SAPI, B-PIPE, Desktop API
Experience with Docker and AWS (EC2, RDS)
Bachelor of Science Degree in Computer Science, Mathematics or a related field Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Senior Java Software Engineer – Customer Services 🔥 22 hours ago Starling Bank 1001 - 5000 🏦 Banking 💳 Fintech 💸 Finance Website LinkedIn All Job Openings Senior Java Software Engineer at Starling, transforming banking through disruptive technology and customer solutions. 🏢🏡 London – Hybrid ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🇬🇧 UK Skilled Worker Visa Sponsor AWS Cloud Google Cloud Platform Grafana Java Kubernetes Postgres Terraform Senior Software Engineer – Full-Stack, Python/TypeScript 🕒 3 days ago Our Future Health UK 51 - 200 Website LinkedIn All Job Openings Full-Stack Senior Software Engineer developing personalised health insights platform for millions across the UK. Working with sensitive health data in a cross-functional team environment. 🏢🏡 London – Hybrid 💵 £88k / year ⏰ Full Time 🟠 Senior 🔙 Backend Engineer AWS Azure Cloud Google Cloud Platform JavaScript Next.js Node.js Open Source Postgres Python React Terraform TypeScript Full-Stack Developer, React, Python, AI-enabled Focus 🕒 4 days ago ClearRoute 51 - 200 Website LinkedIn All Job Openings Full-Stack Developer at ClearRoute focusing on building web applications with React and Python. Collaborating in a hybrid environment for a dynamic engineering consultancy. 🏢🏡 London – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer JavaScript Microservices Python React TypeScript Senior Back End Engineer 🕒 April 17 Voy 501 - 1000 👥 B2C 🧘 Wellness Website LinkedIn All Job Openings Senior Backend Engineer responsible for backend features in health app at Voy. Collaborating on technical direction and scaling product reliability with a team. 🏢🏡 London – Hybrid ⏰ Full Time 🟠 Senior 🔙 Backend Engineer TypeScript Backend Engineer 🕒 April 17 Uphold Inc. 51 - 200 ₿ Crypto 💳 Fintech 🛍️ eCommerce Website LinkedIn All Job Openings Backend Engineer building and improving APIs and microservices at Uphold. Join a financial tech company transforming on-chain services for a global audience. 🏢🏡 London – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer JavaScript Node.js Postgres Redis SDLC Go View More Backend Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Hard Skills & Tools

C#.NETdistributed systemsPythonCI/CDSQLrelational databasessoftware qualityarchitectureevent-driven architecture

Soft Skills

leadershipmentoringcommunicationcollaborationprioritizationethicsintegrity

Certifications

Bachelor of Science Degree in Computer ScienceBachelor of Science Degree in Mathematics