Python Backend Developer Intern – Energy Flexibility Platform
About The Position
Join Siemens’ Autonomous Control and Operations team in Princeton, New Jersey, for a 3–6 month internship building a new Energy Flexibility Platform. The platform enables Siemens customers to participate in energy markets using power generation and storage assets. As part of a small interdisciplinary team of software engineers, power systems experts, and energy market specialists, you will develop and maintain REST APIs that connect data sources to platform algorithms. The product is in its early stages, and code developed for it will reach real customers. You will gain experience across the engineering lifecycle of a modern cloud product, writing Python services with FastAPI and SQLAlchemy, expanding automated tests, maintaining OpenAPI specifications, and shipping through containerized CI/CD pipelines to AWS. The team values clean, well-tested code and open technical discussion, and senior engineers will support your growth. This is an on-site position in Princeton, NJ, in a dynamic environment at the intersection of software engineering and energy.
Requirements
- Be a bachelor's or master's degree student enrolled in Computer Science, Software Engineering, Electrical Engineering, or a closely related program.
- Strong Python fundamentals, including writing functions and classes, consistent use of type hints, and exception handling.
- Experience with relational databases and SQL, including schema design and writing queries.
- Understanding of REST APIs, HTTP, and JSON, including status codes, headers, concurrency control (e.g. ETag / If-Match), and reading API specifications.
- Hands-on experience with software development best practices, including version control (Git), unit testing, and technical documentation.
- Proficiency in written and verbal English.
- Legally authorized to work in the United States without company sponsorship now or in the future.
- Ability to work with controlled technology in accordance with US Export Control Law.
Nice To Haves
- Experience developing REST APIs with FastAPI, Flask, or Django, including schema validation with Pydantic and writing OpenAPI specifications.
- Experience with linters, formatters, and static type checking in an enforced setup (e.g. pylint, black, isort, mypy, pre-commit, SonarQube).
- Basic understanding of OAuth2 / OpenID Connect and JWT-based authentication and role-based authorization.
- Experience with PostgreSQL, SQLAlchemy, and Alembic database migrations.
- Experience with time-series databases such as InfluxDB.
- Experience with pytest, including mocking, Poetry, and API testing tools such as Postman.
- Experience with cloud platforms such as AWS, Azure, or GCP, especially AWS services such as RDS, Systems Manager Parameter Store, Secrets Manager, and SQS.
- Exposure to Docker, Kubernetes / Helm, and CI/CD pipelines such as GitLab CI.
- Coursework or interest in power systems and energy markets.
- Flexibility and adaptability to work in a growing, dynamic, interdisciplinary team of experts.
Responsibilities
- Develop and maintain REST API endpoints for a cloud-based energy flexibility platform using Python.
- Integrate with third-party REST APIs, including authentication, retries, and error handling.
- Write and expand automated unit and integration tests to improve code quality and coverage.
- Keep API specifications (OpenAPI) and technical documentation in sync with the implementation.
- Implement database schema changes and migrations under the guidance of senior engineers.
- Take part in code reviews and team discussions on design and implementation.
Benefits
- Siemens offers a variety of health and wellness benefits; details are available through the linked benefits information.
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What This Job Offers
Job Type
Full-time
Career Level
Intern
