At a Glance
- Tasks: Lead the design and development of cutting-edge trading technology.
- Company: Join a leading financial tech firm with a focus on innovation.
- Benefits: Competitive salary, flexible working, and comprehensive health benefits.
- Other info: Opportunity for career growth in a dynamic, hybrid work environment.
- Why this job: Shape the future of finance with real-time technology and impactful projects.
- Qualifications: Strong C#/.NET experience and leadership in software engineering.
The predicted salary is between 63000 - 77000 Β£ per year.
Harrington Starr is partnering with a leading financial technology firm to hire a Principal C# Software Engineer based in London.
This is a senior technical leadership role focused on real-time trading technology, platform modernisation and re-architecture, combining hands-on engineering, architecture and mentoring.
The Role:
- Shape the technical roadmap and platform re-architecture strategy
- Design and evolve low-latency, event-driven distributed systems
- Lead platform development through to production and improve scalability, resilience and performance
- Drive improvements across automation, observability, CI/CD and developer productivity
- Partner with Engineering, Product and Operations to deliver practical technical solutions
- Mentor engineers and champion engineering standards, best practices and continuous improvement
What We're Looking For:
- Strong C#/.NET software engineering experience
- Proven experience building scalable, high-performance distributed systems
- Strong understanding of real-time and low-latency architecture
- Experience leading modernisation, migration or re-architecture programmes
- Experience with cloud-native architectures, APIs, event-driven systems and CI/CD
- Financial markets experience, ideally across electronic trading, OTC derivatives, fixed income, FX or similar, with strong technical leadership skills
Benefits:
- Up to £140,000 base salary + discretionary bonus
- 25 days annual leave + bank holidays
- Hybrid and flexible working
- Private Medical Insurance and Life Insurance
- Pension and Employee Assistance Programme
If you’re a Principal-level C# engineer looking to shape architecture, modernise complex platforms and work on real-time financial technology, we’d love to hear from you.
Principal Software Engineer in City of London employer: Harrington Starr
Join a dynamic and innovative capital markets technology business in London, where your contributions as a Junior Account Manager will directly impact client success and company growth. With a strong emphasis on employee development, a collaborative work culture, and competitive benefits, this role offers you the chance to thrive in a fast-paced environment while building meaningful relationships with clients and colleagues alike. Experience the unique advantage of working in a scaling firm backed by a leading growth investor, providing ample opportunities for professional growth and advancement.