Software tester Jobs in Hamilton, ON

The Opportunity As a Senior Optimization Engineer at Hitachi Energy, you will help develop the software and mathematical models that support real-time and market-based choices across the power system. In this role, you will work at the intersection of power systems, electricity markets, optimization, and software development—designing, building, testing, integrating, and documenting applications that help utilities and market operators run markets efficiently and support reliable grid operations. You will translate customer requirements into technically sound solutions, apply advanced mathematical modeling and numerical methods, and support software releases while addressing complex technical issues. Your work will contribute to the reliability, performance, and modernization of the grid by enabling smarter market operation, better use of system resources, and stronger alignment with the evolving energy landscape. You will also collaborate with internal teams and customers on projects that connect technical depth with practical results, giving you the opportunity to grow your expertise in power market applications, optimization tools, and energy software in a global environment.

How You’ll Make an Impact

• Analyze customer requirements and propose technically sound solutions for power system and electricity market applications.
• Design, develop, and test optimization applications that support power systems and market operations.
• Integrate software solutions and prepare documentation in line with established development practices.
• Support software releases and troubleshoot complex technical issues to help maintain solution performance and customer outcomes.
• Research and apply advanced mathematical modeling and numerical methods to improve application capability.
• Collaborate with internal teams and represent Hitachi Energy in customer meetings.
• Contribute to improving software development processes and technical documentation.
• Travel occasionally to support global customer projects.
• Responsible to ensure compliance with applicable external and internal regulations, procedures, and guidelines.

Your Background

• Candidate must already have work authorization that would permit them to work for Hitachi Energy in Canada.
• Bachelor’s degree in Electrical Engineering with emphasis in electricity markets.
• Minimum 5 years of experience in optimization modeling tools and solvers (AMPL/AIMMS, CPLEX, Gurobi).
• Minimum 3 years of experience with high-level programming languages.
• Minimum 3 years of experience using Linux or AIX operating systems.
• Minimum 2 years developing power system application software for electricity markets.
• Sound written and oral communication skills in English.

More About Us

In this role, you will have the opportunity to build your skills while working with experienced teams on technologies and software solutions that support the future of energy.

• Opportunities to work on innovative technologies that help shape the future of energy
• A collaborative environment with experienced professionals across the power industry
• Access to learning platforms, tuition reimbursement, and career development programs
• Attractive health and retirement-related benefits
• Paid leave and flexible work arrangements that support work-life balance

Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a [general inquiry form](javascript:void(0)) on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process. This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response.