Jobs at Jefferies

Lead design and implementation of scalable, low-latency equities trading systems. Hands-on Java development, provide technical guidance, enforce code quality, mentor engineers, collaborate with global stakeholders, and drive CI/CD, cloud, and DevOps practices to meet performance, reliability, and business requirements.

Design, build, and maintain core Securities Borrowing & Lending platforms using C#/.NET. Deliver server- and client-side features, automated tests, code reviews, and production support while collaborating with trading, operations, and product stakeholders.

Hands-on Salesforce engineer building features in a heavily customized org using Apex, LWC, and Flows. Implement integrations (REST/SOAP), ensure code quality and test coverage, debug across layers, follow Git and CI processes, and collaborate with a distributed Agile team to deliver within sprints.

Platform administrator responsible for configuration, security, release and environment management, credential lifecycle and certificate management, large-volume data operations, integration health, org monitoring, and cross-team coordination. Drives governance, documentation, upskilling, and seasonal release/security remediation across a heavily customized global Salesforce org.

Build and execute end-to-end test automation for front-end, back-end, API, ETL/data migration and mobile (iPad). Define test strategies, environments and data, coordinate with product and development teams, run regression and exploratory testing, integrate automation into CI/CD via Jenkins, produce test reports, track defects, and mentor QA resources to ensure high-quality, timely deliveries.

Hands-on Salesforce developer building features in a heavily customized org using Apex, LWC, and Flows. Implement REST/SOAP integrations, ensure code quality and test coverage, follow Git/Salesforce CLI workflows, debug across layers, and collaborate across distributed Agile teams to ship within sprints.

Design, build, and maintain automated test suites for web and API layers using Playwright/Selenium, Python/Java and RestAssured. Validate ETL-to-UI workflows, databases (SQL/NoSQL), data pipelines and streaming (Kafka). Integrate tests with CI/CD, manage test assets in QTest, and collaborate in Scrum using JIRA and Confluence.

Design, build, test, deploy, and support scalable, high-performance Java/Spring services for Securities Finance. Contribute to distributed systems, messaging, APIs, and observability; collaborate globally, perform root-cause analysis, code reviews, and improve engineering practices and automation.

Lead end-to-end delivery of complex technical programs using Agile. Plan, monitor, and drive cross-functional workstreams, manage scope/timelines/risks, coordinate engineering, QA, DevOps, security and product teams, maintain RAID logs and documentation, report status to executives, and foster a delivery-focused culture ensuring integrations, deployments, and stakeholder alignment.

Lead design and delivery of cloud-native, event-driven backend services and platforms using Java/Spring Boot. Own end-to-end architecture, production deployment, monitoring, and support. Build Kafka-based real-time data pipelines, design data architecture (Postgres, MongoDB, Redshift), and maintain APIs (REST/OpenAPI/GraphQL/gRPC). Mentor engineers, drive CI/CD and observability best practices, and collaborate with product and IB stakeholders to optimize systems for performance, scalability, resiliency, and low latency.

Senior technical leader responsible for engineering strategy, platform architecture, and delivery across multiple teams. Owns roadmap and standards for Java-based microservices, event-driven/streaming platforms (Kafka), cloud-native infrastructure (AWS, EKS), data stores, and CI/CD. Partners with senior business stakeholders, mentors senior engineers, and resolves complex cross-cutting platform challenges.

Hands-on QA and Test Automation Engineer responsible for designing and executing test strategies across front-end, back-end, API, ETL/data migration and mobile. Build and maintain automated test scripts, manage test environments and data, track defects, integrate tests into CI/CD, support regression and exploratory testing, and coordinate with stakeholders to ensure high-quality, timely deliveries.

Lead design and delivery of cloud-native, event-driven backend platforms using Java and Spring Boot. Own end-to-end solutions from architecture to production, build Kafka-based real-time data pipelines, design data architecture (Postgres, MongoDB, Redshift), implement APIs (REST/OpenAPI/GraphQL/gRPC), ensure scalability, resiliency, CI/CD, observability, mentor engineers, and partner with business and product stakeholders in an Agile environment.

Design, optimize, and maintain Snowflake-based market risk time series infrastructure. Build Python ETL/ELT pipelines, implement Snowpark transformations and stored procedures, tune queries and costs, and detect/remediate data quality issues to support VaR/SVaR calculations.

Build, optimize, and operate risk dashboards and reports using Astrato direct-query to Snowflake. Design performant data models, ensure SLA-driven refreshes, troubleshoot platform issues, and collaborate with IT to deliver accurate, timely risk reporting for multiple asset classes.

Senior engineering leader accountable for platform-scale architecture, technical strategy, and delivery across Java-based microservices and event-driven systems (Kafka). Owns org-wide architecture, tooling, standards, cloud/container platforms (AWS/EKS), data architecture, and alignment with senior business stakeholders while remaining hands-on for design reviews and incident response.

Senior technical leader responsible for engineering strategy, platform-scale architecture, and delivery across multiple teams. Owns technical roadmap for shared services, champions event-driven architectures (Kafka), provides hands-on guidance for Java microservices, ensures reliability, observability, and security, and partners with senior business and technology stakeholders to drive execution and scalability.

Design, develop, and maintain automated test frameworks for UI, API, integration, regression, and end-to-end tests across .NET, Java, and Python systems. Write Gherkin scenarios, integrate tests into CI/CD (Bamboo/GitHub Actions), execute and document test cases, manage defects, participate in Agile ceremonies, and contribute to performance and security testing and testability reviews.

Lead design, develop, test, and maintain cloud-native risk platform components on AWS. Build containerized systems (EKS/Docker/Helm), backend services in Python using Boto3, implement IaC and CI/CD, collaborate with architects and stakeholders, and support risk analytics, data modeling, reporting, and production troubleshooting.