Principal Software Engineer - £78k-£90k
We're seeking a Principal Software Engineer to take the lead on mission-critical front office systems within a fast-moving global trading and data environment. You'll guide a talented, multi-disciplinary engineering team, partnering with senior architects and peers across regions to design and deliver distributed, event-driven, cloud-native platforms. This is a hands-on technical leadership role focused on building robust, scalable systems while championing engineering excellence and modern delivery practices. Hybrid working available across the UK.
What you'll be doing
Providing technical leadership to a cross-functional team delivering core front office solutions
Partnering with architects and principal engineers across global teams to shape and uphold engineering standards
Designing and building distributed, event-driven systems with a focus on scalability, resilience and performance
Ensuring delivery quality through rigorous technical review, testing, and continuous improvement
Encouraging innovation by exploring new technologies, frameworks, and approaches to enhance delivery outcomes
Maintaining transparent communication with stakeholders, proactively identifying and resolving delivery challenges
What you'll bring
Essential
Strong background in leading and mentoring Agile software engineering teams
Experience designing, building and maintaining distributed, cloud-native, event-driven platforms
Advanced proficiency in C# with .NET Core and .NET Framework
Solid experience with API design and implementation (REST, GraphQL)
Expertise in relational databases and performance tuning (MSSQL, MySQL or similar)
Skilled in cloud deployment and management (AWS or Azure)
Broad understanding of the software development lifecycle, from design through to post-release support
Pragmatic, delivery-driven mindset with an ability to challenge assumptions and drive technical clarity
Strong problem-solving skills with experience using proof-of-concepts to validate ideas
Excellent communication, collaboration and stakeholder management abilities
Proven experience implementing scalable automated testing frameworks
Desirable
Hands-on experience with WPF or other UI frameworks
Exposure to financial markets or trading platforms
Familiarity with FIX protocol and financial messaging systems
Strong knowledge of AWS services and infrastructure best practices
Experience with Java, JavaScript or React
Understanding of microservices and serverless architectures
Working knowledge of TDD, BDD or related testing methodologies
Apply here or contact Aaron Somers at Ocho via LinkedIn for more information.