Software Principal 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: As a Team Lead / Principal Engineer, you will provide technical leadership and architectural direction for high-performance, real-time web applications, including SCADA and Industrial IoT (IIoT) platforms. You will own end-to-end system design, mentor engineers, drive engineering excellence, and collaborate with product, DevOps, and domain experts to build scalable, secure, and resilient real-time data acquisition and visualization systems. This role combines deep technical expertise with team leadership and strategic engineering ownership. Key Responsibilities 1. Technical Leadership & Architecture Own system architecture for real-time SCADA/IIoT web platforms. Define scalable backend and frontend design patterns using Node.js, NestJS, React.js, Next.js, and WebSockets. Drive architectural decisions around performance, scalability, high availability, and security. Establish technical standards, design guidelines, and review mechanisms. Lead major technical initiatives, refactoring, and modernization efforts. 2. Team Leadership & Mentorship Lead and mentor a team of engineers (code reviews, design reviews, technical coaching). Foster engineering best practices, ownership mindset, and accountability. Support sprint planning, estimations, and technical risk assessment. Enable cross-team collaboration across globally distributed teams. Drive hiring, onboarding, and skill development initiatives. 3. Application Development & Delivery Design and develop high-performance backend and frontend applications. Architect real-time data streaming systems using WebSocket and messaging protocols (e.g., MQTT). Build and optimize dashboards for industrial analytics and big data visualization. Ensure API design consistency, integration reliability, and system robustness. Identify and eliminate performance bottlenecks in large-scale web applications. 4. Engineering Excellence Enforce clean coding standards and static code analysis practices. Define unit testing, integration testing, and automation strategies. Establish CI/CD best practices and release governance. Improve web performance, browser rendering efficiency, and real-time data responsiveness. Lead root cause analysis for production issues and system outages. 5. Cloud & Infrastructure Collaboration Guide deployment strategies on cloud platforms (e.g., AWS EC2). Collaborate with DevOps on containerization (Docker), networking, and Ubuntu environments. Design secure and scalable communication for industrial data pipelines. Contribute to observability, logging, and monitoring strategies. 6. Documentation & Governance Define technical roadmaps aligned with product strategy. Document architectural decisions, workflows, and best practices. Ensure compliance with industrial standards and security requirements. Required Qualifications Technical Expertise 12–14 years of experience in full-stack JavaScript development. Strong expertise in Typescript, Node.js, NestJS, React.js, Next.js, and WebSocket. Proven experience in architecting backend frontend enterprise applications. Hands-on experience with SCADA systems, Industrial IoT platforms, or real-time analytics dashboards. Strong understanding of data streaming, event-driven architecture, and distributed systems. Advanced knowledge of CSS, HTML, API design, and web performance optimization. Experience with static code analysis, test automation frameworks, and code quality governance. Strong debugging and per ... (truncated, view full listing at source)