Senior Field Engineer

Are you ready to be part of a company that's not just talking about the future, but actively shaping it? Join The AES Corporation, the largest US-based global power company with a team of 8,300 employees across 12 countries. AES has been ranked #1 by BloombergNEF in renewable energy sales to corporations in the US and Americas for five consecutive years, providing electricity for millions of people worldwide. We are proud to foster a strong workplace culture, earning prominent positions in Great Place to Work™ rankings across the markets where we operate. AES was also named one of the World’s Most Ethical Companies for the 13th consecutive year in 2026, highlighting our dedication to integrity, transparency, and responsible business practices. Our spirit of innovation continues to earn industry recognition. AES is the only seven-time winner of the Edison Electric Institute’s Edison Awards in the twenty-first century, a distinction honoring global leadership in advancing the electric power industry. If you're ready to be part of a company that's not just adapting to change, but driving it, AES is the place for you. We're not just building a more sustainable future , we're powering it. Apply now and energize your career with a true leader in global energy. AES is seeking an experienced and highly motivated Senior Field Engineer to lead field execution, testing, and commissioning activities at the National Laboratory of the Rockies (NLR), AES's advanced technology validation and demonstration facility. This individual will play a critical role in evaluating emerging energy technologies, supporting first-of-kind deployments, and accelerating the transfer of innovative solutions from concept to commercial application, working alongside subject matter expertise in emerging technologies and advanced grid integration solutions on technology validation. The Senior Field Engineer will implement and operate field test programs, commission new technologies, troubleshoot complex systems, maintain testbed infrastructure, and document lessons learned for broader deployment across AES. The role combines hands-on technical execution, project leadership, vendor collaboration, and innovation-driven problem solving. This position is ideal for an engineer who enjoys working with cutting-edge technologies, solving difficult technical problems, and operating in a dynamic environment where requirements evolve as new opportunities emerge. Key Responsibilities Testbed Engineering, Validation, and Operations · Lead field execution of technology validation programs at the NLR test facility. · Design, build, and implement test setups for emerging energy technologies, including battery energy storage systems, inverters, controls, and other advanced power system equipment. · Convert test objectives into safe, efficient, and executable field test plans. · Prepare equipment, instrumentation, wiring, communications, and data acquisition systems required for testing activities. · Execute tests and demonstrations while ensuring adherence to safety requirements and test procedures. · Collect, organize, analyze, and report test data and findings. · Develop test reports, lessons learned documents, technical summaries, and recommendations for future deployments. · Manage multiple test campaigns simultaneously and prioritize activities in a fast-paced environment. Technology Commissioning · Lead commissioning activities for first-of-kind and pilot technology deployments at the testbed and project sites. · Collaborate with vendors, contractors, AES engineering teams, laboratory personnel, and third-party specialists during commissioning activities. · Develop commissioning plans and procedures. · Verify equipment functionality, communications, controls, safety systems, and operational performance. · Identify, troubleshoot, and resolve commissioning issues while maintaining schedule and documentation requirements. · Support transitions from commissioning into long-term testing and evaluation activities. Troubleshooting and Site Operations · Serve as a primary technical resource for troubleshooting fielded equipment and testbed infrastructure. · Diagnose electrical, controls, communications, software, and system integration issues. · Coordinate repairs, upgrades, and maintenance activities with suppliers, contractors, AES teams, and laboratory staff. · Maintain readiness and reliability of testbed equipment and supporting infrastructure. · Support operations and maintenance activities necessary to keep the facility functioning safely and effectively. Innovation and Knowledge Transfer · Partner with AES subject matter experts and another test engineer to identify, define, and prioritize testing opportunities and test plans. · Translate technical findings into actionable recommendations for projects, engineering teams, and leadership. · Document commissioning and testing results in a manner that enables broad organizational learning. · Capture and transfer lessons learned from technology demonstrations, failures, commissioning activities, and troubleshooting efforts. · Contribute to AES innovation objectives by identifying opportunities to improve products, processes, and system performance. Project Management and Stakeholder Coordination · Coordinate field activities among suppliers, laboratory personnel, contractors, consultants, and AES personnel. · Track schedules, deliverables, action items, testing milestones, and technical risks. · Manage field activities while maintaining high standards of safety, quality, and documentation. · Support budget planning, procurement coordination, and execution of testing initiatives. Required Qualifications · A minimum of 5 years of experience in testing, commissioning, operations, field engineering, or related technical roles. · Demonstrated hands-on experience setting up, executing, and documenting engineering tests. · Experience commissioning electrical or electromechanical equipment in field environments. · Strong troubleshooting, root-cause-analysis, and problem-solving skills. · Ability to independently diagnose and resolve complex technical issues and manage integrated systems. · Experience coordinating suppliers, contractors, engineers, and technical stakeholders. · Strong project management and organizational skills, including the ability to manage multiple testing initiatives simultaneously. · Innovative mindset and ability to succeed in an environment with changing requirements and emerging opportunities. · Collaborative working style and ability to partner effectively with test engineers and subject matter experts. · Demonstrated desire for continuous learning and technical growth. · Ability to obtain a qualified electrical worker certification with AES. Preferred Qualifications · Hands-on experience with battery energy storage systems, batteries, or power conversion systems. · Experience with utility-scale photovoltaic systems, inverters, power electronics, and controls. · Experience with electrical testing, instrumentation, SCADA, energy management systems, or power plant controls. · Experience commissioning first-of-kind technologies, pilot projects, or large-scale demonstrations. · Knowledge of utility-scale power systems and grid-connected equipment. · Experience with RTDS, hardware-in-the-loop testing, or other real-time simulation platforms. · Familiarity with grid dynamics, grid stability, and inverter-based resource behavior. · Experience collaborating with national laboratories or universities on testing, research, or demonstrations. · Experience developing technical reports and presenting results to engineering and business stakeholders. Education Bachelor's degree in Electrical Engineering, Mechanical Engineering, or a related technical field is preferred but not required. Equivalent technical education, military training, trade certifications, or demonstrated industry experience will be considered. Demonstrated technical skill, testing experience, troubleshooting capability, systems-management ability, and hands-on engineering competence are more important than a specific degree. Work Environment and Travel · Position is based primarily at the National Laboratory of the Rockies test facility in Arvada, Colorado. · Work is performed in indoor and outdoor environments, including from a temperature-controlled jobsite container and within active test areas. · Certain periods may require in-person, on-site presence up to five days per week, depending on active testing and commissioning schedules. · Ability to work safely around energized electrical equipment and construction activities is required. · Travel up to 25% may be required to support technology demonstrations, factory testing, commissioning activities, and project deployments. What Success Looks Like Success in this role means enabling AES to quickly and safely evaluate promising technologies, execute first-of-kind demonstrations, solve difficult technical challenges, and transform field experience into deployable solutions across the AES portfolio. The Senior Field Engineer serves as both a hands-on technical leader and a key contributor to the AES innovation ecosystem. AES is an Equal Opportunity Employer who is committed to building strength and delivering long-term sustainability through diversity and inclusion. Respecting all backgrounds, differences and perspectives enables us to improve the lives of our people, customers, suppliers, contractors, and the communities in which we live and work. All qualified applicants will receive consideration for employment without regard to sex, sexual orientation, gender, gender identity and/or expression, race, national origin, ethnicity, age, religion, marital status, physical or mental disability, pregnancy, childbirth, or related medical condition, military or veteran status, or any other characteristic protected under applicable law. E-Verify Notice: AES will provide the Social Security Administration (SSA) and if necessary, the Department of Homeland Security (DHS) with information from each new employee's I-9 to confirm work authorization. The expected salary for this position, at commencement of employment, is between $113,000 and $141,525/year; however, base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. The total compensation package for this position also includes annual bonus. The benefits offered for this position are: medical, dental, and vision coverage, life insurance, 401(k) eligibility, and paid time off (including vacation, sick leave time, and parental leave). Details of participation in these benefit plans will be provided if a candidate receives an offer of employment. If hired, employee will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors. Apply by clicking the application link below and submitting your information. The deadline to apply for this role is 10/31/2026