Fluence Energy

Principal Controls Engineer

Join Fluence Energy as a Principal Controls Engineer in Houston or Arlington. Lead control software design for energy storage systems using Matlab/Simulink and Agile methods. Enjoy a collaborative culture focused on innovation and impact with opportunities for limited travel.

Fluence Energy

Company Overview

Fluence Energy

Arlington, VA, United States

2018

Approximately 600 employees globally (source: salestools.io).

What They Do

Fluence Energy focuses primarily on energy storage technology solutions and services, including design, delivery, integration, optimization software, and control platforms for renewables and storage integration into grids (source: fluenceenergy.com). Its core products encompass standardized energy storage systems such as Gridstack, Ultrastack, Sunstack, and Edgestack, designed for utility-scale, industrial, commercial, and renewable-integrated applications, paired with the Fluence IQ Digital Platform for AI-optimized asset management, rapid deployment, and maximization of clean energy usage (source: mapquest.com). These offerings build on pioneering technologies from AES Energy Storage (Advancion platform) and Siemens (Siestorage), providing container-based systems, comprehensive services, and cloud-based software to address grid challenges in a transforming energy landscape (source: pestel-analysis.com). Target markets include utilities, developers, commercial and industrial clients, and service providers across utility-scale projects, with a global footprint in 24 countries and territories (source: fluenceenergy.com). Fluence holds a competitive position as the global market leader in energy storage, having topped the Navigant Research utility-scale energy storage leaderboard in 2018, named one of Fast Company’s Most Innovative Companies, and deploying the largest fleet of energy storage projects worldwide (source: fluenceenergy.com).

Projects & Track Record

By 2021, Fluence had more than 2.4 gigawatts (GW) of energy storage projects in operation or awarded across 24 countries and territories, reflecting its early track record in utility-scale deployments (source: fluenceenergy.com). The company maintains the largest deployed fleet of energy storage projects globally, with deployments supporting grid integration of renewables in key markets, though specific completed project names, locations, capacities, and years are not detailed in available sources beyond aggregate figures (source: fluenceenergy.com). Ongoing operations emphasize global expansion, with projects and contracts secured through 2020 and beyond, focusing on new markets for storage (source: dcfmodeling.com). Key clients span utilities, developers, and industrial users, with partnerships rooted in its Siemens and AES origins, though specific client names are not listed; the company serves a broad ecosystem including power sector stakeholders worldwide (source: fluenceenergy.com).

Recent Developments

The provided sources, primarily from 2021 and earlier, do not cover major announcements, contracts won, acquisitions, mergers, funding rounds, awards, certifications, or milestones specifically from 2024-2025, limiting verifiable details to pre-2022 events such as the 2021 IPO raising $867.9 million (source: dcfmodeling.com). Fluence was recognized as topping the Navigant Research leaderboard in 2018 and listed among Fast Company’s Most Innovative Companies around that period, but no awards from the last two years (2024-2025) are documented here (source: fluenceenergy.com). Expansion efforts continue through Fluence Next, a unit for commercializing new technology-driven opportunities in power and energy shifts, as noted in 2021 job descriptions (source: fluenceenergy.com).

Working There

Fluence Energy offers roles across engineering (software development and infrastructure), product management and design, sales and marketing (business development, customer success), operations (finance, HR, procurement, logistics), and executive leadership, with positions like Principal Fluence Next (focusing on new technology commercialization, M&A evaluation) and Operations Manager (handling sales planning, reporting, compliance) often based in Arlington, VA, or continental U.S. locations (source: salestools.io). Hiring occurs at the Arlington, VA headquarters (4601 Fairfax Drive, Suite 600) and remote/continental U.S. options, with global offices like Alpharetta, GA, and others potentially open based on expansion (source: fluenceenergy.com). Company culture emphasizes safety, quality, integrity, personal ownership, honest communication, agility, intellectual curiosity, collaboration, prioritizing high-impact efforts, fun through creativity and inclusivity, and a hands-on attitude, fostering innovation via modern workspaces with open-plan offices, collaboration spaces, high-speed tech, wellness facilities, dining, and recreation at headquarters (source: salestools.io). Benefits include comprehensive packages supporting well-being and growth, with Fluence positioned as an equal opportunity employer; candidates are directed to apply via LinkedIn for open roles (source: fluenceenergy.com).


Last updated on May 22, 2026 | Report an issue

Job Description

We are looking for a Principal Controls Software Engineer with a passion for software design and extensive experience with power engineering, MathWorks Matlab/Simulink, Agile Scrum using Jira, and Git. Our Control System is comprised of three main applications: Controls, UI, and the Data Acquisition System. You will report to the Senior Manager Control Application Software Development. As a hands-on member of the development team, you will also do the work of delivering a releasable Increment of product at the end of each Sprint.

Key Responsibilities

  • Serve as the Principal controls SW developer designing Fluence's energy storage system control SW for utility and grid applications.
  • Develop FOS Controls, integrate grid-scale battery and power conversion systems from industry-leading manufacturers.
  • Design, develop, build, and document FOS controls logic using MathWorks Matlab/Simulink/Stateflow and C.
  • Support requisition engineering. Troubleshoot field issues and identify root causes.
  • Focus on robustness, security, performance, scalability, and maintainability.
  • Meet project timelines and budget.
  • Track, manage, document, and report work using JIRA and Confluence.
  • Foster a spirit of teamwork that allows for impersonal disagreement over ideas, conflict, and expeditious resolution.
  • Understanding of grid codes, compliance, leading the team technically.

Required Qualifications and Experience

  • Bachelor in the areas of Electrical, Electronics, or controls Engineering, Power Engineering related fields from an accredited university. Masters in Power system, Power electronics, Energy are preferrable.
  • Expertise in MathWorks Matlab/Simulink for model-based systems engineering.
  • Strong knowledge of power system market applications, power generation, and/or energy storage system controls.
  • Experience in closed-loop control algorithms.
  • Expertise using the Agile development framework and Git workflow.
  • Enthusiasm for getting things done, taking personal responsibility, adding value within a team setting, and ability to work with minimal supervision.
  • Willing and able to travel, domestically and internationally, up to 5% of the time.

Additional Skills

  • 10+ years of control SW development experience with Master degree
  • MS or M.Tech in Power System, Power Electronics, Control systems, Software Engineering, from an accredited university.
  • Significant related work experience will be considered in place of a master's degree.
  • Expertise in control SW verification and validation.
  • Expertise in Simulink code generation and optimization.
  • Experience in Linux shell script programming.
  • Experience in CI/CD integration process and toolchain.
  • Experience with Industrial Protocols: Modbus TCP, MQTT, DNP3, IEC 61850.
  • Knowledge in HIL - Typhoon,OPAL are preferable.

Our Culture

At Fluence, our culture is the foundation that drives our ambitious growth strategy and fuels our mission to transform the future of energy. Our core cultural pillars empower us to innovate, collaborate, and lead with purpose, ensuring we continue to deliver unparalleled value to our customers and the world.

Unleash Voices

We believe every voice matters. We encourage openness, active listening, and decisive action to create a culture where everyone has the opportunity to contribute to our success. We foster an environment where diverse perspectives are heard and valued, driving innovation and progress.

Customer Fluent

Our customers are at the heart of everything we do. We're committed to delivering exceptional value that exceeds expectations by understanding our customers' needs and adapting swiftly to meet them. Our deep focus on customer satisfaction drives us to continuously improve and innovate.

Infinite Impact

We are committed to creating the impossible. We push boundaries to deliver sustainable, game-changing solutions that shape a brighter, more energy-efficient future for all. Our team is passionate about making a lasting impact that will resonate for generations to come.

All In

We are all in for growth. Our teams are relentlessly focused on identifying and seizing opportunities that propel us forward. We embrace an ownership mindset, pushing ourselves and each other to accelerate progress and create lasting success.

Equal Opportunity Employer
At Fluence, we believe great teams are built on a collaborative and connected culture. We're proud to be an Equal Opportunity Employer and welcome qualified applicants of all backgrounds. Employment decisions are made without regard to race, color, religion, sex, sexual orientation, national origin, age, disability, veteran status, gender identity or expression, genetic information, or any other status protected by law.

Work Authorization
To join our team, you'll need to be legally authorized to work in the United States at the time of application and throughout your employment, without the need for employer sponsorship. Please note that Fluence does not sponsor work visas for this position.

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About the role

June 2, 2026

Full time

Company

June 3, 2026

On-site

Energy Storage

Fluence Energy

fluenceenergy.com

  •  Houston, Texas, United States
  •  Arlington, Virginia, United States

10+ years of control software development experience

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