Principal Software Engineer

Fluence (Nasdaq: FLNC) is a global market leader delivering intelligent energy storage and optimization software for renewables and storage. Our solutions and operational services are helping to create a more resilient grid and unlock the full potential of renewable portfolios. With gigawatts of successful implementations across nearly 50 markets, we are transforming the way we power our world for a more sustainable future.

For more information, please visit  fluenceenergy.com . Job Description: Role Overview   As a Principal Software Engineer for the Fluence OS platform, you will provide hands-on technical leadership for the design, development, integration,   deployment   and evolution of reliable edge-platform software used in industrial energy systems. You will combine deep Linux and container   expertise   with strong C/C++ engineering and practical knowledge of Industrial IoT communication protocols.

The role is expected to solve complex cross-component problems,   establish   engineering   direction   and raise the technical capability of teams working across a globally distributed organization. What You Will Do   Technical ownership and architecture:   Own the technical design and evolution of major Fluence OS platform capabilities. Translate product and system requirements into scalable, maintainable software architecture and clear implementation plans.

Hands-on platform engineering:   Design, develop,   integrate   and troubleshoot production-grade software running on Ubuntu Linux, with a strong focus on C/C++, system services, resource efficiency,   reliability   and long-term maintainability. Containerized application delivery:   Define and implement Docker-based packaging and runtime practices, including   Dockerfiles , image construction, Docker Compose configurations, upgrades, observability and troubleshooting across deployed environments.

Industrial communication:   Lead the design and implementation of robust integrations using protocols such as MQTT, Modbus,   BACnet   and OPC UA. Address interoperability, data quality, performance, fault handling and recovery across heterogeneous industrial devices and systems. Gateway and industrial edge development:   Design and develop software gateways and edge services that connect industrial devices, normalize and route data, perform protocol conversion, and   operate   reliably on embedded and industrial computing platforms.

System integration and reliability:   Diagnose complex issues spanning applications, operating systems, containers, networks,   protocols   and third-party open-source components. Drive root-cause analysis and sustainable corrective actions rather than short-term fixes. Engineering excellence:   Set standards for code quality, code reviews, automated testing, secure development, performance analysis, observability, release   readiness   and technical documentation.

CI/CD and automation:   Guide   improvements to build, test, package and deployment pipelines. Use scripting and automation to improve repeatability,   traceability   and engineering productivity. Technical leadership:   Lead design reviews, challenge assumptions constructively, make well-reasoned technical   decisions   and mentor engineers. Provide clear direction while   remaining   deeply involved in implementation and problem solving.

Cross-functional collaboration:   Partner with product managers, architects, subject-matter experts, quality teams, site   teams   and other engineering groups to deliver platform outcomes in an agile, globally distributed environment. Documentation and knowledge sharing:   Create architecture decisions, interface specifications, development standards, troubleshooting   guidance   and customer-facing technical documentation that are precise and usable.

Required Qualifications   8+ years of professional software engineering experience, including significant ownership of complex production software or platfo