Senior Software Engineer - Brokerage Platform

moomoo • North York, ON

3d • Onsite

About The Position

Moomoo Canada Financial Inc. (MFC) is seeking an experienced Senior Software Engineer to join their engineering team in Toronto. This role is for a hands-on engineer capable of building high-quality software, designing scalable system architectures, solving complex engineering problems, and leveraging AI to enhance software development productivity and quality. Experience with brokerage, trading, securities, financial services, or other mission-critical backend systems is highly preferred. The role involves close collaboration with engineering and product teams in Shenzhen, China, requiring strong cross-region and cross-cultural collaboration skills.

Requirements

• 5+ years of professional software development experience, with strong hands-on engineering capabilities.
• Strong backend software development experience in one or more major programming languages such as Java, C++, Go, Python or similar languages.
• Proven experience designing and building complex, distributed or highly available backend systems.
• Strong understanding of software architecture and the ability to independently design technical solutions for complex business problems.
• Solid knowledge of distributed systems, databases, APIs, messaging systems, caching, concurrency and system performance.
• Strong engineering fundamentals, including code quality, testing, observability, reliability and production troubleshooting.
• Ability to understand complex business domains and translate business requirements into scalable technical designs.
• Strong ownership mindset and the ability to independently drive projects from technical design through production deployment.
• Strong collaboration and communication skills, especially in cross-functional and geographically distributed teams.
• Deep understanding and practical use of AI-assisted software development.
• Regular hands-on experience using AI coding tools or AI coding agents to improve development productivity.
• Ability to critically review, validate and improve AI-generated code rather than simply relying on generated outputs.
• Strong interest in exploring how AI is changing software engineering workflows and development methodologies.

Nice To Haves

• Experience developing backend systems for brokerage, securities, trading or capital markets businesses.
• Experience with systems such as: Order Management Systems (OMS), Trading systems, Account and portfolio systems, Position and P&L systems, Clearing and settlement, Cash and funding systems, Risk management systems, Market data systems.
• Experience working in regulated financial environments.
• Experience designing high-volume, low-latency or mission-critical systems.
• Experience with cloud infrastructure and modern DevOps practices.
• Experience leading technical design or acting as a technical owner for major projects.
• Experience collaborating with engineering teams in China or other global engineering organizations.
• Professional working proficiency in Mandarin Chinese is a significant plus, as it can greatly improve day-to-day collaboration with teams based in Shenzhen.

Responsibilities

• Design, develop and maintain highly reliable and scalable backend systems.
• Own technical design and implementation of complex business and platform capabilities.
• Participate in system architecture design and make sound technical decisions considering scalability, reliability, maintainability, performance and security.
• Build systems supporting brokerage and financial-service use cases, such as account management, trading, order management, positions, settlement, funding, risk management and related backend services.
• Identify architectural and engineering bottlenecks and drive improvements to existing systems.
• Write clean, maintainable and well-tested production code.
• Conduct code reviews and contribute to strong engineering standards and best practices.
• Work closely with Product, Risk, Compliance, Operations and other engineering teams to translate complex business requirements into robust technical solutions.
• Collaborate closely with engineering and product teams based in Shenzhen headquarters, including technical design discussions, project delivery, system integration and issue resolution across regions.
• Communicate effectively across different time zones, teams and technical contexts.
• Take ownership of production issues and perform systematic root-cause analysis.
• Actively use AI-assisted software development tools and AI coding agents throughout the software development lifecycle.
• Explore and establish effective AI-native engineering practices, including AI-assisted coding, code review, debugging, testing, documentation, refactoring and technical research.
• Continuously improve engineering productivity while maintaining high standards for code quality, security and reliability.

Benefits

• Competitive salary, comprehensive benefits, and performance-based incentives
• Opportunities for professional growth in a fast-growing fintech company
• Beautiful office space in mid-town Toronto with stunning city views
• Work in a company that’s a global leader in online brokerage and wealth management

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed