Open Systems Technologies is a tier-one vendor for the world's most competitive financial and technology companies, offering both full-time and contract recruiting services across the country. We offer a positive, entrepreneurial, high performing culture where all employees have the unique opportunity to run a full desk. Our office looks, feels, and operates like a start-up, but with the stability, clientele, and resources that only an industry veteran can provide. At our core, we are structured to be flexible. With over 30 years of experience, OST has been able to stand the test of time and remains the leading provider of IT staffing solutions in NY due to our forward thinking and adaptability through fluctuating job markets and evolving work cultures. Open Systems Technologies is an Equal Opportunity Employer. All decisions regarding employment will be made without regard to age, race, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, marital status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state or local law.
On-site · Mississauga
Conduct data analysis and quality control assessments, validate data and analytical models, and document data sources and lineage. Support QC execution, resolve observations, develop guidance and reporting, and consult with business clients to define requirements and address complex system or process issues.
On-site · Montréal
Support senior leadership with operational priorities, including contract and vendor oversight, budgeting, forecasting, financial reporting, and workforce governance. Prepare executive materials, coordinate initiative follow-ups, and lead employee engagement and communications activities across a global organization.
Hybrid · Toronto
Serve as the primary technical contact for financial clients, translating business needs into scoped solutions and delivering production-ready applications for trading, risk, and operational workflows. Architect and build secure, scalable systems, manage CI/CD and cloud deployments, and support production readiness through monitoring, rollback planning, and incident response.
On-site · Montréal
Develop and support server-side applications using Java, Spring, relational databases, and distributed data-processing tools. Work independently within a global team, following coding standards and incorporating unit tests and foundational model testing.
On-site · Mississauga
Develop Java applications and build distributed, service-oriented, microservice-style, and cloud-based architectures. Work with relational databases, Linux/Unix shell environments, Spring applications, and message-driven systems.
On-site · Montréal
Design, implement, tune, document, and optimize DLP policies across email, endpoint, web, cloud/SaaS, and GenAI environments, translating security and regulatory requirements into practical controls. Assess control coverage and effectiveness, address jurisdiction-specific requirements, support risk and audit inquiries, and collaborate with engineering, operations, compliance, and business stakeholders.
On-site · Montréal
Lead Agile delivery activities as Scrum Master while gathering and translating business requirements into user stories, functional specifications, and delivery plans. Coordinate Workday HCM and Recruiting integrations, testing, defect resolution, releases, stakeholder alignment, and ongoing production support across concurrent initiatives.
On-site · Mississauga
The role involves leading the design and development of complex full-stack applications using Java and Angular while driving architecture decisions. You will also be responsible for mentoring junior developers and ensuring the scalability and performance of enterprise-grade systems.
