At a Glance
- Tasks: Design and develop robust server-side applications and APIs for high-volume environments.
- Company: Join a leading tech firm focused on innovation and excellence.
- Benefits: Competitive salary, health benefits, remote work options, and career development opportunities.
- Other info: Dynamic role with opportunities for mentorship and technical leadership.
- Why this job: Shape the future of technology while working with cutting-edge tools and talented teams.
- Qualifications: Extensive experience in back-end systems and strong problem-solving skills required.
The predicted salary is between 70000 - 90000 £ per year.
As a Senior Back‑End Engineer, you will design, develop, and maintain robust server‑side applications and APIs that support high‑volume, data‑intensive environments. You will play a key role in shaping technical architecture, ensuring system reliability, and driving best practices in software engineering. This position requires strong problem‑solving skills, deep technical expertise, and the ability to collaborate effectively with cross‑functional teams.
Role Responsibilities
- Lead by example as a hands‑on engineer, working closely with Architects, Principal Engineers, and Trading SMEs to design, build, review, test, and deliver mission‑critical high‑performance systems end‑to‑end.
- Own engineering deliverables throughout the full lifecycle, ensuring performance, scalability, resilience, and alignment with engineering best practices.
- Mentor engineers, elevate code quality standards, and foster a culture of technical excellence.
- Drive innovation through POCs, technical evaluations, and continuous improvement initiatives.
- Leverage AI‑assisted tools to improve development efficiency and help shape our AI journey.
- Communicate progress proactively, highlighting risks and removing delivery impediments.
Experience / Competences
Essential
- Significant years of hands‑on experience building and supporting latency‑sensitive front‑office trading systems (OMS, Matching, Execution).
- Strong background in designing and maintaining distributed, event‑driven, cloud‑native applications.
- Comprehensive SDLC experience across design, development, QA, deployment, and production support.
- Ability to balance rapid delivery with architectural rigor and long‑term maintainability.
- Proven problem‑solving capabilities and ability to validate ideas through POCs.
- Ability to engage effectively with traders, quants, and other business stakeholders.
Desired
- Domain experience in Credit or Fixed Income.
- Expertise in modern .NET technologies and C# (Java or similar OO languages considered).
- Strong relational database design and optimisation skills (MSSQL, MySQL).
- Deep understanding of low‑latency engineering, concurrency, multithreading, and performance optimisation.
- Experience implementing observability (metrics, tracing, logging) for distributed systems.
- Experience with CI/CD pipelines, containerisation (Docker), and orchestration (Kubernetes/EKS).
- Experience designing APIs (REST, GraphQL).
- Knowledge of distributed messaging and caching technologies (e.g., Solace, Redis, or similar).
- Understanding of FIX protocol and FIX message handling.
- Hands‑on experience with AWS, microservices, and serverless patterns.
- Understanding of TDD, BDD, or similar testing methodologies.
Role Band & Level: Manager, 6
Location: UK – 135 Bishopsgate – London
Senior Software Engineer (Back End) in London employer: SwiftCruit
As a Senior Software Engineer at our London office, you will thrive in a dynamic and innovative environment that champions technical excellence and collaboration. We offer competitive benefits, a strong focus on employee growth through mentorship and continuous learning opportunities, and a culture that encourages creativity and the use of cutting-edge technologies. Join us to be part of a team that values your contributions and supports your professional journey in the heart of one of the world's leading financial hubs.
