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Elemental Excelerator
Elemental Excelerator

Principal Developer & Architect



Software Engineering, IT
Multiple locations
Posted on Thursday, May 30, 2024

Stem provides clean energy solutions and services designed to maximize the economic, environmental, and resiliency value of energy assets and portfolios. Stem’s leading AI-driven enterprise software platform, Athena®, enables organizations to deploy and unlock value from clean energy assets at scale. Powerful applications, including AlsoEnergy’s PowerTrack, simplify and optimize asset management and connect an ecosystem of owners, developers, assets, and markets. Stem also offers integrated partner solutions to help improve returns across energy projects, including storage, solar, and EV fleet charging. For more information, visit www.stem.com.

Stem’s culture embodies diversity & inclusion beyond the traditional facets of gender, ethnicity, age, disabilities, and sexual orientation to include experience, personality, communication, workstyles, 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.

What we’re looking for:

We are seeking a highly skilled and experienced candidate to join our team as a Principal Engineering with emphasis on big data and cloud infrastructure. In this role, you will work with a team of senior developers, product owners, and QA personnel to build and enhance complex cloud-based enterprise systems. You will be engaging in technical problem-solving and design discussions, implementing solutions, and maintaining high standards for code quality and testing.

You will have the opportunity to work on our advanced data platform, which ingests data from hundreds of thousands of devices worldwide and performs analytics and complex business functions. This platform is built using technologies such as AWS Kinesis, Kafka, Pulsar, and Kubernetes, and we are constantly looking to expand its capabilities and refine our existing infrastructure. We are looking for someone who can deeply understand and build upon our cloud-based systems, and who has strong communication and technical skills.

If you are excited about the opportunity to use your skills to make a positive impact on the world, we encourage you to apply for this role. Join us and be a part of a team that is committed to sustainability and reducing our carbon footprint!

Full Stack Architect/Developer, and Front-end Design System Engineering, React, Java/Python, Kafka, AWS Kinesis, C#/.Net (Remote eligible)


  • Design and Develop components and services that support the capabilities of the PowerTrack, PowerTrack Pro and Athena platforms. This is inclusive of the front-end Command Center interface as well as the underlying services ranging from data ingestion & transformation to ML/AI-based forecasting, trading and controls systems.
  • Design and develop highly scalable and resilient services/data pipelines for data ingestion and processing using modern big data technologies
  • Improve the data quality and reliability of the pipelines through proper monitoring and fault detection.
  • Designing platform architecture and leading team of developers. In addition to leading/guiding/architecting the expectation is 50% of the time will be hands-on developing/coding.
  • Serve as SCRUM Master as well as Tech Lead on 1-2 SCRUM Teams with remote employees residing across North America, Europe and India.
  • Develop and deploy high-volume, enterprise-level, services, and utilities to support both native and web-based applications
  • Cleaning, testing, and evaluating data quality from a wide variety of ingestible data sources
  • Develop solutions in AWS, specifically using: Lambda, ECS, S3, SNS, SQS, Kubernetes, CloudFormation
  • Support and assist migration of legacy software to newer .NET Core framework architecture
  • Learn and contribute to a unique, growing codebase with out-of-the-box, creative solutions using logical and problem-solving skills
  • Other duties as assigned.


  • The most critical qualification is a history spearheading the development of successful enterprise level solutions that are scalable, extensible, and cost effective.
  • 10+ years’ experience with front-end framework architecture, design systems and highly customizable user profiled micro-front ends.
  • 10+ years or more object-oriented programming experience, preferably in C#/C++/Java
  • Familiarity with .NET framework, .NET Core preferably with multi-threaded programming
  • Experience with queueing and streaming technologies such as AWS Kinesis or Kafka
  • Experience building and maintaining large scale ETL pipelines and in-depth knowledge of various big data frameworks and architectures
  • Good knowledge of with SQL and database technologies, sockets, HTTP, FTP, RESTful and SOAP APIs
  • Strong knowledge of software development best practices, including agile methodologies, continuous integration, and continuous delivery.
  • Modern version control tools such as Git, Gitlab
  • Familiarity with Docker and cloud deployments
  • Ability to take initiative, understand the big picture, anticipate problems, assess & identify risks
  • Experience with designing and implementing scalable approaches for high frequency data collection, processing and storage is a plus.
  • Highly organized, solutions driven, detail oriented, and able to work autonomously with minimal direction from high level requirements
  • Documentation of product enhancements and bug fixes
  • Effective communication, collaboration, and interpersonal skills
  • Ability to brainstorm with other team members and leverage constructive feedback
  • Enthusiastic about learning new skills and taking on new challenges

Work Environment:

  • This position is remote eligible but preferable East coast given the interaction with West coast team members as well as global team members in India and Europe.
  • There will be some travel requirements (infrequent) and possible required days in the office in a co-working environment such as WeWork/Other.

Physical Demands:

  • 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.
  • Regular, predictable attendance is required
  • Specific vision abilities required by this job include close vision requirements due to computer work.

Salary Range

$166,750.00 - $233,550.00

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.