Senior Java Low Latency Developer

Tata Consultancy Services; Mississauga; On-site; CAD 100,000 - 120,000; Full time

Job summary

Tata Consultancy Services Canada Inc. is seeking a Senior Java Low Latency Developer for its Payments Processing Development team. You will help evolve exchange connectivity and Direct Market Access platforms, bringing deep expertise in low-latency trading systems and modern Java.

Join a globally distributed team, drive performance optimizations, implement scalable architectures, and contribute to automated testing and CI/CD workflows in a dynamic, finance-focused environment.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related discipline.
• Experience in financial services/low-latency environments is preferred.
• Strong Java (JDK 17+) and performance tuning knowledge.
• Experience with microservices and distributed systems.

Responsibilities

• Design, develop and support high-performance, low-latency trade execution platforms.
• Collaborate with global teams to deliver strategic tech initiatives.
• Enhance platform capabilities, resiliency, and latency performance.
• Lead with CI/CD and agile development practices.

Skills

Core Java

JDK 17+

Low-latency design

Distributed systems

Agile / CI-CD

Problem solving

Communication

Mentorship

Education

Bachelor's degree in CS/Engineering

Tools

AI-assisted coding (GitHub Copilot)

Job description

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.

TCS has been serving the Canadian marketplace for more than 35 years and today is the technology partner of choice for many of the country's leading organizations. As one of the largest IT services providers in Canada and globally, TCS is aiming to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence.

Rooted in the heritage and values of the Tata Group, TCS is focused on creating long-term value for its clients, investors, employees, and the communities it serves. With a highly skilled workforce supporting customers from coast to coast, TCS has consistently been recognized as a Top Employer by the Top Employers Institute, including a recent top ranking at the country level.

TCS also sponsors 14 of the world's most prestigious marathons and endurance events, including the TCS Toronto Waterfront Marathon, reflecting its commitment to health, sustainability, and community

Role Overview

We are seeking an experienced Senior Java Low Latency Developer to join our Payments

Processing Development team and help drive the evolution of our next-generation exchange

connectivity and Direct Market Access (DMA) platforms. This role is ideal for a highly skilled

engineer with a strong background in low-latency trading systems, financial markets technology,

and modern Java development.

Key Responsibilities

• Design, develop, and support high-performance, low-latency trade execution and exchange connectivity platforms.
• Collaborate with regional and global development teams to deliver strategic technology initiatives and business objectives.
• Partner with business stakeholders and product teams to enhance platform capabilities, resiliency, and latency performance.
• Drive the development of next-generation DMA and market access solutions.
• Implement low-latency design patterns, performance optimization techniques, and scalable distributed architectures.
• Develop and maintain automated testing frameworks, development tools, and delivery environments to ensure high-quality software releases.
• Design and implement comprehensive test strategies for trading workflows and platform functionality.
• Champion Agile development practices, Continuous Integration/Continuous Delivery (CI/CD), and AI-assisted engineering tools.
• Contribute to engineering standards, development best practices, and architectural governance.
• Provide technical leadership, mentorship, and guidance to development team members.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related discipline.
• Good years of overall IT experience, including at least good years in the Financial Services industry.
• Strong expertise in Core Java development, preferably with JDK 17 or later.
• Proven experience building and supporting low-latency, high-throughput trading or market connectivity platforms.
• Deep understanding of low-latency system design principles, performance tuning, and mechanical
• Hands-on experience with microservices-based architectures and distributed systems.
• Prior experience developing automated trading, order management, or market access platforms.
• Strong knowledge of automated testing methodologies and test automation frameworks.
• Experience working in Agile development environments with CI/CD practices.
• Excellent problem-solving, analytical, and troubleshooting skills.
• Strong verbal and written communication skills with the ability to effectively collaborate across global, multicultural teams.

Preferred Qualifications

• Experience with FIX Protocol and/or binary protocols used for market connectivity and order routing.
• Knowledge of exchange connectivity, DMA platforms, electronic trading systems, or capital markets technology.
• Experience with AI-powered developer tools such as GitHub Copilot and other AI-assisted software engineering solutions.
• Exposure to cloud-native technologies, observability tooling, and modern DevOps practices.
• Experience working within globally distributed development organizations.

What You'll Bring

• A passion for building mission-critical, ultra-low latency financial systems.
• Strong ownership mindset and commitment to delivering high-quality software.
• Ability to balance innovation, performance, stability, and scalability.
• Strategic thinking with the ability to align regional initiatives with global technology objectives.
• A collaborative approach and willingness to mentor and influence engineering best practices across teams

Salary Range

CA$ 100,000 - CA$ 120,000 Per Year

TCS does not use artificial intelligence tools for candidate screening or evaluation.

This posting is for a current vacancy

The hiring process includes an initial screening by the TCS Hiring Team, followed by a technical evaluation and managerial discussion conducted by the Business Team, and concluding with the final HR evaluation.

Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.