Staff Software Engineer, Edge Development

Stem, Inc. • Broomfield, CO

3d • Hybrid

About The Position

Stem is a global leader in energy intelligence, leveraging human and artificial intelligence to support the energy transition. Their integrated software suite, PowerTrack, is the industry standard for asset monitoring, complemented by professional and managed services. Stem aims to provide clear, accurate information and actionable insights from raw data to help asset owners, operators, and stakeholders maximize the value of their clean energy assets. With a presence in 55 countries, Stem has nearly 20 years of experience in maximizing the value of clean energy projects. The company culture emphasizes diversity and inclusion, encompassing not just traditional facets but also experience, personality, communication, and workstyles. Stem operates at the intersection of clean energy and software technology, fostering a collaborative and innovative environment where diverse ideas and skills converge to create progressive solutions. The Senior Software Engineer will serve as a technical leader and architect for clean energy edge platforms (EMS, PPC, SCADA, Logger), driving the design and implementation of scalable, high-performance renewable energy control systems. This role requires deep expertise, strategic thinking, and the ability to mentor engineering teams. Collaboration with cross-functional stakeholders is key to supporting technical roadmaps, maintaining architectural standards, and delivering robust software solutions.

Requirements

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

Nice To Haves

• Additional languages: C#, Python, React, Node.js, SQL
• Broad protocol experience: MQTT, Modbus, DNP3, OPC-UA
• Embedded databases: SQLite or similar
• Containerization: Docker/Podman
• Hardware I/O experience: Serial ports, GPIO, hardware debugging
• Data acquisition systems - Polling strategies, multi-protocol handling, time-series data
• 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.
• Strong analytical and debugging skills with the ability to troubleshoot complex technical issues across the full stack.

Responsibilities

• Collaborate with product and engineering leadership to shape long-term technical strategy and roadmap.
• Collaborate with Edge Development teams to implement integrated software product offerings.
• Integrate, maintain, and occasionally develop robust controls features, from application interfaces to complex controls algorithms.
• 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.
• Participate in code reviews, provide constructive feedback to team members.
• 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.

Benefits

• 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

What This Job Offers

• Job Type: Full-time
• Career Level: Senior