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LSEG

Senior Developer

LSEG, Chicago, Illinois, United States

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Overview We are seeking a hardworking and intellectually curious Senior Java Engineer to join the development of the new Index platform for the FTSE‑Russell Index Business of London Stock Exchange Group (LSEG) in our Fort Mill office. The individual will work on innovative technologies with a team of developers to implement solutions that support the strategic growth of the Index business. This role requires requirement gathering from Index Research and implementation of sophisticated algorithms with high precision for computation of financial data points.

Key Responsibilities

Design, develop, and maintain complex Java and Python based applications and services using industry‑standard methodologies and tools.

Collaborate with Product Managers, UX team, and Software Engineers around the globe to deliver outstanding products.

Engage actively from requirements gathering and design to the final stages of testing and deployment, ensuring products meet the highest standards.

Establish and maintain automated tests, guaranteeing applications are robust, scalable, and secure.

Lead individual project priorities and target commitments.

Perform code reviews to ensure application meets or exceeds specified standards.

Act as subject‑matter expert, mentor junior developers on a day‑to‑day basis.

Deliver Level 3 production support by diagnosing and resolving issues to minimize disruption to business operations.

Qualifications Degree or equivalent experience in Computer Science or Electronics / Electrical Engineering.

8+ years of experience in core backend software development.

Required Skills

Excellent algorithm and problem‑solving skills.

Ability to convert business use cases and problems into technical solutions.

Creative, results‑driven, self‑motivated, and solutions‑oriented.

Ability to work against tight objectives.

Can‑do demeanor, leads change, thinks strategically.

Experience with CI/CD tools & automation (Jenkins, GitLab, etc.).

Experience working on performance optimizations, JVM profiling.

Core Java, data structures and algorithms.

Python core concepts and proficiency with libraries and frameworks.

Relational database experience (Oracle, SQL Server, Postgres).

DevOps (CI/CD), Docker, Kubernetes.

Microservices and REST APIs.

Multi‑threading & concurrency.

Advantageous Skills

Financial services experience and understanding of market data.

Level 3 production support experience.

Experience with highly distributed and data‑intensive systems.

In‑memory caching, Spring Boot, Redis, Apache Kafka.

BDD testing frameworks such as Cucumber, JBehave, Karate.

Benefits Health care, retirement planning, paid volunteering days and wellbeing initiatives.

Equal Opportunity Employment LSEG is an equal opportunities employer and we do not discriminate on the basis of race, color, religion, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. We accommodate applicants' and employees' religious practices and mental and physical disability needs.

Privacy Notice Please read our privacy notice, which describes what personal information London Stock Exchange Group (LSEG) may hold about you, how it is used, and how to contact us as a data subject.

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