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Senior Core Java Developer

Job in Toronto, Ontario, C6A, Canada
Listing for: Synechron
Full Time position
Listed on 2026-06-19
Job specializations:
  • Software Development
    Java Developer, Backend Developer, Software Engineer, Cloud Engineer - Software
Salary/Wage Range or Industry Benchmark: 125000 - 150000 CAD Yearly CAD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

The Role

We are seeking a highly experienced and hands‑on Java Developer with a strong background in Core Java, Spring Framework, and low‑latency multi‑threaded programming to join our dynamic team. The ideal candidate will have extensive experience working within capital markets, debt capital markets, and financial operations, with a proven track record of designing and developing high‑performance, scalable, and resilient systems. This role requires a deep technical expertise, with the ability to lead and collaborate within a global team, communicate effectively, and deliver robust solutions that meet the demanding needs of financial markets.

Responsibilities
  • Develop, enhance, and maintain high‑performance, low‑latency trading and financial systems using Core Java and Spring Framework.
  • Design and implement multi‑threaded, concurrent, and scalable solutions for mission‑critical applications.
  • Architect and optimize SQL queries and work with caching solutions such as MemSQL to ensure fast data retrieval and system efficiency.
  • Collaborate with global teams to understand business requirements and translate them into technical solutions.
  • Work on cloud‑based solutions using AWS, Azure, or other cloud platforms to deploy, manage, and monitor applications.
  • Contribute to the architecture and development of distributed systems for capital markets, with an emphasis on debt markets and financial operations.
  • Conduct code reviews, enforce coding standards, and advocate best practices in software development.
  • Support and troubleshoot live trading systems, ensuring high availability and low latency.
  • Stay abreast of technological advancements in cloud, Java, and capital markets to recommend improvements and innovations.
Requirements

You are:

  • Core Java: 10‑12 years of hands‑on experience developing robust Java applications.
  • Spring Framework: 5‑10 years of experience with Spring Core, Spring Boot, and associated projects.
  • Multi‑threading & Low Latency Development: Proven experience designing and implementing multi‑threaded, low‑latency, high‑frequency trading or financial systems.
  • Database & Caching: Expertise in SQL, with experience in query tuning; knowledge of caching solutions such as MemSQL, Redis, or similar.
  • Cloud Platforms: Experience deploying and managing applications on AWS, Azure, or equivalent cloud platforms.
  • Capital Markets & Debt Capital Markets: Prior experience in capital markets, especially debt instruments and related financial operations.
  • Financial Operations: Strong understanding of financial workflows, settlements, and operational processes (beneficial).
  • Communication &

    Collaboration:

    Excellent verbal and written communication skills, with experience working in a global team environment.
Nice‑to‑have
  • Experience with real‑time data streaming and event‑driven architectures (e.g., Kafka, RabbitMQ)
  • Familiarity with reactive programming frameworks such as Reactor or Rx Java
  • Knowledge of containerization and orchestration tools like Docker and Kubernetes
  • Hands‑on experience with financial market data feeds, FIX protocol, and trading APIs
  • Exposure to machine learning and data analysis techniques in financial contexts
  • Understanding of Dev Ops practices including CI/CD pipelines, Jenkins, and monitoring tools
We can offer you
  • A multinational organization with 57 offices in 22 countries and the possibility to work abroad
  • 15 days (3 weeks) of paid annual leave plus an additional 10 days of personal leave (floating days and sick days)
  • A comprehensive insurance plan including medical, dental, vision, life insurance, and long‑term disability
  • Flexible hybrid policy to fit your schedule
  • RRSP with employer’s contribution up to 4%
  • A higher education certification policy
  • On‑Demand Udemy for Business for all Synechron employees with free access to more than 5000 curated courses
  • Coaching opportunities with experienced colleagues from our Financial Innovation Labs (Fin Labs) and Centre of Excellence (CoE) groups
  • Cutting‑edge projects at the world’s leading tier‑one banks, financial institutions and insurance firms
  • A truly diverse, fun‑loving, and global work culture

SYNECHRON’S DIVERSITY & INCLUSION STATEMENT

Diversity & Inclusion are fundamental…

Position Requirements
10+ Years work experience
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