Senior Full Stack Software Engineer

LG Energy Solution Michigan, Inc.•Westborough, MA

3d•Onsite

About The Position

LGES Vertech is looking for an experienced Senior Fullstack Software Engineer at our Westborough, MA head office. We are looking for a candidate who is a self-starter and brings an entrepreneurial spirit to join the Energy Market Optimization and Artificial Intelligence (EMO/AI) team. This is a broad role that goes beyond feature development, you will own software systems end-to-end, from concept through production, while influencing architecture and elevating engineering standards across the team. You will develop solutions to improve the performance, efficiency, and profitability of Battery Energy Storage Systems (BESS) in fast-changing energy markets. We are looking for engineers who thrive in complex, data-driven environments, can navigate ambiguity, and bring a strong sense of ownership. As part of a high-growth team, you will have the opportunity to work across a broad technological stack while contributing to products that play a critical role in the energy transition.

Requirements

B.S in Physics/Engineering/Computer Science with software development experience
Minimum 6+ years of experience building and operating production-grade software systems
Proven experience in distributed systems and microservices architecture
Demonstrated full stack experience: backend services/APIs and modern frontend UIs
Demonstrated and a track record of ownership of features from ideation through deployment and ongoing support
Establish and enforce standards for observability, logging, and error handling to ensure the reliability of software used in BESS and energy market systems domain
Comfortable mentoring others and contributing to a team's engineering culture
Experience supporting customer-facing software in production environments with reliability and performance considerations.
Strong proficiency in python with experience building production-grade backend and frontend systems
Experience with JavaScript/TypeScript frontend development or clear ability to ramp quickly and lead technical decisions in that space
Experience designing and building REST APIs and service-oriented architecture
Hands-on experience with Cloud platform (AWS, Azure, or GCP); specifically container-based services(e.g. Docker, Kubernetes) and core compute
Experience with cloud data warehouses (e.g., Snowflake) and orchestrators (e.g., Airflow or Dagster)
Solid understanding of CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins, or equivalent)
Must be authorized to work in the United States without sponsorship

Nice To Haves

Experience with the Python data ecosystem (Pandas, NumPy, Pandera) in building data-intensive or analytics-driven applications
Experience integrating machine learning or data-driven models into production systems
Experience with Streamlit or similar frameworks for rapid development of data applications and internal tools
Familiarity with time-series data processing, forecasting workflows, or optimization-driven systems
Experience with modern frontend frameworks (React, Vue, or similar)
Experience in STEM industry or energy market trading

Responsibilities

Be part of the Climate tech revolution and help solve the most complex problems through software engineering.
Act as the advocate for technical excellence, ensuring that the EMO/AI team adopts technologies that are scalable, maintainable, and aligned with long-term business goals
Work closely with cross-functional and diverse teams throughout the software product life cycle to gather requirements, drive architectural roadmap, adopt best practices to prevent technical debt, implement new features, fix bugs, participate in quality assurance, and update stakeholders on periodic basis.
Design, develop, and ship customer-facing features across the full stack (backend APIs/services and frontend UIs)
Serve as the technical authority on the team, mentoring peers, and standardizing the development lifecycle
Mentor and support junior engineers through code review, pairing, and guidance on design tradeoffs
Collaborate with energy markets, operations, and product teams to translate domain requirements into reliable software
Write testable, observable, maintainable code with an eye toward long-term maintainability and performance
Lead 'build vs. buy' evaluations for new tools and frameworks, providing data-driven justifications for technology shifts
Help elevate engineering standards, including best practices in system design, frontend technology, testing, and development workflows
Participate in interviewing and help calibrate hiring quality as the team grows
Participate in Agile/Scrum ceremonies and help the team continuously improve its execution and delivery process