Senior IT/OT Engineer (m/w/d)
Fluence Energy
Company Overview
Fluence Energy
HeadquartersArlington, VA, United States
Founded2018
SizeApproximately 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 Jun 30, 2026 | Report an issue
Job Description
- Leading the Project team on realization of the Project specific requirements with existing functionalities: serve as the Subject Matter Expert regarding Cybersecurity, Network, Architecture and associated devices.
- Lead the integration of the Fluence BESS control system into the Transmission System Operator (TSO) SCADA systems: lead the Network configuration, communication interfaces, cybersecurity requirements, to meet TSO / Customer requirements.
- Develop and maintain documentation of existing Network infrastructure including hardware, protocols, communication links and cybersecurity strategies.
- Lead and guide field engineers to find solutions to problems as they arise during commissioning/testing of a system, in all network-related subjects.
- Involved in central network/cybersecurity for energy storage solutions, including guidance, evaluation and analysis of network/cybersecurity challenges. Ensuring network and communication security vulnerabilities are acknowledged and communicated to affected stakeholders.
- Manage interface to Client and sub-contractor to ensure Networks compliance and lead concept during Tender and Project Execution phase.
- Develop standardized test procedures and execute tests (FAT / SAT) to reduce commissioning time, and perform testing, including involvement in hands on lab testing during evaluations of prototype systems.
- Keep current with all Company products, developments, and projects as they apply to the Network at both site and enterprise levels.
- Maintain strict management of change control procedures and documentation.
- Remain current on industry best practices and updated technology to ensure the company is provided world-class Network and Cybersecurity practices.
- Support company strategy and provide relevant reporting and updates to Company leadership as needed.
- Develop and recommend performance management and feedback to current Control System technical support KPI's.
- Executing tasks related to Fluence' safety KPIs
- Travel throughout EMEA
Skills
- Bachelor's / Master's degree in computer engineering, information technology, computer science (or equivalent)
- Minimum 5 years of relevant experience in OT / Networking with a power utility or related industry and direct experience in the electricity transmission/distribution sector with EMS/SCADA systems.
- Expert of OSI layer models and experience in deploying network configurations.
- Expert in remote access VPN, site-to-site VPN, Routers, Firewalls, Switches (Cisco + industrial equipment), SD-WAN, Meraki.
- Experience in Linux based systems and commands, High-level programming languages such as Python and shell/bash scripting as well as with Github.
- Knowledge about AWS, Openstack, Docker.
- Expert on the design, operation and maintenance of high voltage electrical equipment including but not limited to inverters, transformers, I/O racks, telecommunications, and controllers.
- Solution-orientated mindset
- Good communication skills
- Fluency in English
- German / other language skills beneficial
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.
Apply now
Job expired?Please let Fluence Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
Apply now
Job expired?Please let Fluence Energy know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
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About the role
July 28, 2026
July 28, 2026
Full time
On-site
Company
- Erlangen, Germany
- Berlin, Germany
Minimum 5 years of relevant experience
UTC+01:00