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About Stem - Driven by human and artificial intelligence - Stem is unlocking energy intelligence.

Stem is a global leader reimagining technology to support the energy transition. Turning complexity into clarity, and potential into performance.
We help asset owners, operators and stakeholders benefit from the full value of their energy portfolio by enabling the intelligent development, deployment, and operation of clean energy assets. Our integrated software suite, PowerTrack, is the industry standard and best-in-class for asset monitoring, supported by professional and managed services, under one roof. Meant to tackle challenges as seamlessly as possible, Stem shows the information needed clearly and accurately and helps harness raw data to inform actionable insight. With global projects managed in 55 countries – from Germany to Japan and across North America – customers have relied on Stem for nearly 20 years to maximize the value of their clean energy projects.

Stem's culture embodies diversity & inclusion beyond the traditional facets of gender, ethnicity, age, disabilities, and sexual orientation to include experience, personality, communication, work styles, and more. At our core, Stem is at the momentous intersection of clean energy and software technology where diverse ideas, experiences, and professional skills converge to make the inclusive culture we have today. Together, we are turning old school thoughts about software and energy into progressive, collaborative, and innovative solutions. By joining our team, you will be collaborating with data scientists, energy experts, skilled salespeople, thought-leading executives and more from a range of backgrounds. This intersection of ideas, beliefs, and skills is what makes us unique enough to lead the world’s largest network of digitally connected energy storage systems.

As a Senior Software Engineer, you will serve as an architect across our clean energy edge platforms, including EMS, PPC, SCADA, and Logger. You will drive the design and implementation of scalable, high-performance renewable energy control systems.

This role demands deep expertise; strategic thinking; and the ability to mentor and influence engineering teams. You will collaborate with cross-functional stakeholders to support technical roadmaps, maintain architectural standards, and ensure the delivery of robust, maintainable, and innovative software solutions that accelerate the clean energy transition.

• Technical Strategy - Collaborate with product and engineering leadership to shape long-term technical strategy and roadmap.
• Software Development - Collaborate with Edge Development teams to implement integrated software product offerings.
• Controls Development Integration - Integrate, maintain, and occasionally develop robust controls features, from application interfaces to complex controls algorithms.
• Testing & Quality Assurance - Oversee comprehensive unit, integration, and end-to-end tests using modern testing frameworks to ensure code reliability and maintainability.
• Ensure proper security best practices are followed for all aspects of development and deployment of production systems/services.
• Collaborate with DevOps teams to implement CI/CD pipelines, containerization strategies, and monitoring solutions for deployed applications.
• Code Reviews - Participate in code reviews, provide constructive feedback to team members.
• Technical Innovation - Stay current with emerging technologies and industry trends, proposing and implementing new tools and approaches that improve development efficiency and product capabilities.
• Other duties as assigned.

• Education - B.S/M.S in Software Engineering, Computer Science, Electrical Engineering, or related technical field preferred, or equivalent practical experience.
• Experience - 5+ years of professional software or controls development experience with a proven track record of delivering complex control system designs.
• Technical Skills:
• C++ (C++17/20), fluency in other languages is a plus.
• Experience with embedded or resource-constrained Linux systems.
• Git and GitLab CI/CD workflows.
• Real-time operating system experience - Understanding deterministic behavior, timing constraints, and concurrency.
• Version Control & Collaboration - Proficiency with Git workflows, code review processes, and collaborative development practices in distributed teams.
• Testing Practices - Experience with automated testing frameworks and methodologies, including unit testing, integration testing, and test-driven development (TDD).
• DevOps Awareness - Familiarity with CI/CD pipelines, deployment automation, and monitoring tools. Experience with GitLab CI, GitHub Actions, or similar platforms.
• Communication Skills - Excellent verbal and written communication skills with the ability to collaborate effectively with technical and non-technical stakeholders.
• Industry Interest - Genuine interest in clean energy, sustainability, and making a positive environmental impact through technology solutions.

• Additional languages: C#, Python, React, Node.js, SQL, IEC 61131-3, Matlab, Simulink
• Broad protocol experience: MQTT, Modbus, DNP3, OPC-UA
• Embedded databases: SQLite or similar
• Containerization: Docker/Podman
• Remote diagnostics and field deployment - OTA updates, remote debugging, fault tolerance
• System integration - Working with heterogeneous devices, protocols, and data formats
• Knowledge of energy power industry standards, like NERC and/or ENTSO-E.
• Background in applications for the renewable and/or traditional energy sector.
• Problem-Solving Skills - Strong analytical and debugging skills with the ability to troubleshoot complex technical issues across the full stack.
• Hybrid - Office Setting, primarily in cubicles, and partial remote.
• Ability to sit or stand (standing desk provide upon request) at a computer terminal for an extended period.

• While performing the duties of this job, the employee is regularly required to communicate (talk/sign/type/write) and operate a computer, telephone (or alternative), keyboard (or typing device), etc.
• Specific vision abilities required by this job include close vision requirements due to computer work.
• Ability to uphold the stress of traveling.

Job Location: Broomfield, CO. This is a hybrid role working out of our Broomfield CO office a couple days a week.

To learn more about Stem, visit our stem.com where you'll find information about our solutions, technology, partners, case studies, resources, latest news and more. Here are some relevant links:

At Stem, you will work in a growing, innovative, mission-driven company with talented colleagues that have a passion for building renewable energy systems.Stem offers competitive compensation as well as a comprehensive set of benefits to support the health and wellness of our employee including:

• A competitive compensation package, including eligibility for a bonus or commission based on the role.
• Full health benefits on the first day of employment (several medical plan options-HDHP and PPO, dental plans, FSA/HSA-with employer contribution, employer paid vision/LTD/STD/Life, variety of voluntary coverage)
• 401k (pre- or post-tax) on first day of employment
• 12 paid calendar holidays per year
• Flexible time-off

Stem, Inc is an equal opportunity employer committed to diversity in the workplace and does not discriminate against any employee or applicant for employment because of race, color, sex, pregnancy, religion, national origin, ethnicity, citizenship, sexual orientation, gender identity, age, marital status, disability, genetic information, military status, protected veteran status or any other factor protected by applicable federal, state or local laws.

The pay range for this role is:

126,400 - 189,600 USD per year (US National)