Senior Optimization Engineer

At Hitachi Energy, we are driving the transformation of the global power system to enable a sustainable energy future. This is your chance to join a team that is solving some of the most complex challenges in the energy industry—optimizing electricity markets, integrating renewables, and ensuring grid reliability in real time.

As a Senior Optimization Engineer, you will work at the intersection of advanced mathematics, software engineering, and power systems. You’ll design and implement optimization models that help utilities and market operators make smarter, faster decisions. Your work will directly impact how energy flows across regions, how markets operate efficiently, and how we accelerate the transition to clean energy.

If you thrive on solving technical puzzles, collaborating with global experts, and creating solutions that matter, this role offers more than a career—it offers a purpose. Join us and help shape the future of energy.

• Analyze customer requirements and propose technically sound solutions.
• Design, develop, and test optimization applications for power systems and markets.
• Integrate and document software solutions following best practices.
• Support software releases and troubleshoot complex technical issues.
• Research and apply advanced mathematical modeling and numerical methods.
• Collaborate with internal teams and represent Hitachi Energy in customer meetings.
• Contribute to improving software development processes and documentation.
• Travel occasionally to support global customer projects.
• Responsible to ensure compliance with applicable external and internal regulations, procedures, and guidelines.

• 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.
• Strong written and oral communication skills in English.
• Candidate must already have work authorization that would permit them to work for Hitachi Energy in the United States.

We pride ourselves on offering a holistic range of competitive benefits to support your financial, physical and mental wellbeing and personal development. We want you to truly thrive with us, in work and out. For this role, depending on grade and experience, we offer the following employee benefits (subject to the respective plan rules):

• Health Care (medical, dental, vision, etc.)
• Financial Wellbeing: (Employer sponsored pension - 401(k) Program with generous company match and contribution, Life/AD&D Insurance, disability insurance)
• Family Care:
  Life and Family (Legal, pet, auto, home, identity theft, etc.), special needs support, and adoption assistance
• Work-Life:
  Enhanced leave programs (FMLA, Military Service Leave, Maternal, Paternal, adoption, vacation, and holiday).
• Employee Engagement and Development:
  Employee Resource Groups (depending on location), tuition reimbursement program, on-demand learning platforms.

Location Santa Clara, California, United States of America

Job type Full time

Experience Experienced

Job function Engineering & Science

Contract Regular

Publication date

Reference number R0109484

Hitachi Energy is a global technology leader in electrification, powering a sustainable energy future through innovative power grid technologies with digital at the core. Over three billion people depend on our technologies to power their daily lives.

With over a century in pioneering mission-critical technologies like high-voltage, transformers, automation, and power electronics, we are addressing the most urgent energy challenge of our time – balancing soaring electricity demand, while decarbonizing the power system.

Headquartered in Switzerland, we employ over 50,000 people in 60 countries and generate revenues of around $16 billion USD. We welcome you to apply today.

Hitachi Energy is an Equal Employment Opportunity (EEO) employer committed to encouraging…