Fluence Energy

Senior/Staff Software Engineer

Join Fluence Energy in Bengaluru as a Senior/Staff Software Engineer. Design and develop AWS SaaS applications using Python and Kotlin. Collaborate with experts and enjoy a culture focused on innovation and impact.
Fluence Energy
Fluence Energy
Bengaluru, India On-site Full time UTC+05:30

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

As a Senior/Staff Software Engineer, you will be instrumental in designing, developing, and maintaining robust AWS SaaS applications. This role requires close collaboration with data scientists, product managers, and subject matter experts. Your key responsibilities include and not limited to:

  • Design & Development: Craft efficient and dependable AWS SaaS applications using Python and Kotlin/Java, React.js is a plus.
  • Collaboration: Work closely with data scientists, product managers, and experts.
  • Code Management: Write code and tests, construct prototypes, solve issues, and evaluate and rectify bottlenecks.
  • Design Discussions: Actively participate in design discussions and provide pivotal input to guide technical resolutions.
  • Documentation: Document the design, new processes, RFC, best practices and methodologies.
  • Support: Respond to the production issues, work with the rest team and try to solve the problem within the time defined in SLA.

What will our ideal candidate bring to Fluence?

  • Minimum of 5 years hands-on experience with Python, 5 years hands-on experience with Kotlin and 2 years experience with PostgreSQL.
  • At least 7 years of experience in developing SaaS applications on AWS.
  • Extensive experience with scalable API design and development.
  • Familarity with containerization and orchestration (Docker & Kubernetes).
  • Proficiency in adhering to coding standards and guidelines.
  • Expert in static code analysis, unit testing, and other best practices ensuring high-quality code delivery.
  • Experience working with IoT time series databases.

Nice to have

  • Experience in Javascript/Typescript based front-end development.
  • Familiarity with CI/CD build pipelines.
  • Understanding of DataOps.
  • Knowledge of data structures and algorithms.
  • Knowledge of Energy Industry.

Educational and Certification Requirements

  • Bachelors in computer science or a related field is preferred.
  • AWS certifications will be considered an added advantage.

Fluence IS AN EQUAL OPPORTUNITY EMPLOYER and fully subscribes to the principles of Equal Employment Opportunity to ensure that all applicants and employees are considered for hire, promotion, and job status without regard to race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, marital or familial status.

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.

About the role

June 5, 2026

Full time

Company

June 8, 2026

On-site

Smart Grid

Fluence Energy

fluenceenergy.com

  •  Bengaluru, India

Minimum 7 years in SaaS applications development

UTC+05:30