full stack developer for investment banking

Jefferies is a global investment bank and securities firm providing capital markets, financial advisory, institutional brokerage, securities research, trade execution, and asset management services.

• Lead the design, development, and delivery of backend services and platform components using Java 8+ / Spring Boot and Python / FastAPI;
• Build, enhance, and operate event-driven, real-time data pipelines using Kafka and related streaming technologies;
• Provide deep technical expertise in distributed systems, data architecture, and scalable platform design;
• Design, implement, and maintain Java-based APIs and microservices, including REST, OpenAPI, GraphQL, and gRPC services;
• Work with PostgreSQL, MongoDB, and Amazon Redshift;
• Deliver reliable, performant, and responsive user interfaces using Angular or React;
• Own solutions end-to-end, from technical design and architecture through production deployment, monitoring, support, and continuous improvement;
• Champion engineering best practices across code quality, testing, CI/CD, observability, maintainability, and operational resilience;
• Mentor and guide junior and mid-level engineers through code reviews, design reviews, and hands-on technical leadership;
• Independently identify, analyse, scope, and propose solutions to complex technical challenges with minimal direction;
• Partner with business stakeholders, product managers, and cross-functional technology teams to translate requirements into robust technical solutions;
• Optimise systems for performance, scalability, resiliency, reliability, and low-latency operation;
• Participate in Agile ceremonies, including sprint planning, estimation, execution, retrospectives, and continuous delivery improvements;
• Collaborate with globally distributed engineering teams to ensure consistency of architecture, delivery standards, and platform evolution;
• Support production systems, ensuring timely issue resolution, root-cause analysis, and ongoing service improvement.

• Strong professional experience in full stack software engineering, ideally within financial services, capital markets, or another complex enterprise technology environment;
• Advanced backend engineering experience with Java 8+, Spring Boot, and microservices-based architectures;
• Strong Python development experience, preferably with FastAPI or similar modern API frameworks;
• Proven experience designing and building cloud-native, distributed, scalable, and resilient systems;
• Hands-on experience with Kafka or similar event streaming technologies;
• Strong understanding of API design and service integration patterns, including REST, OpenAPI, GraphQL, and gRPC;
• Practical experience with relational and NoSQL data platforms, including PostgreSQL, MongoDB, and Redshift;
• Frontend development experience using Angular or React, focused on reliable, maintainable, and responsive UI delivery;
• Strong understanding of software engineering best practices, including automated testing, clean code, code reviews, CI/CD, observability, and secure development practices;
• Experience deploying and operating production-grade systems in cloud or hybrid-cloud environments;
• Demonstrated ability to lead technical delivery, mentor engineers, and influence architecture decisions;
• Strong analytical and problem-solving skills, with the ability to operate independently in a complex delivery environment;
• Excellent communication skills for effective engagement with technical teams, business stakeholders, and product partners;
• Nice to have: Experience with CRM, client intelligence, sales enablement, or front-office data platforms; experience in investment banking, equities, fixed income, wealth management, or broader financial services technology; familiarity with AWS or other public cloud platforms; experience with Docker and Kubernetes; knowledge of observability tooling, monitoring frameworks, distributed tracing, and production support best practices; experience working in globally distributed Agile engineering teams; understanding of data governance, data lineage, entitlements, and regulatory considerations in financial services environments.

• Office role in London, England, United Kingdom;
• Equal employment opportunity employer with reasonable accommodations for individuals with disabilities.