---
title: 'Software & Controls Engineer - Energy Management Systems at ON.energy'
canonical: 'https://feeny.ai/job/software-controls-engineer-energy-management-systems-on-energy-argentina-n984ebyc7e5n'
type: 'job'
last_seen: '2026-09-14'
---

# Software & Controls Engineer - Energy Management Systems at ON.energy

- **Company:** ON.energy
- **Location:** Argentina / Houston Texas, United States / Mexico / Miami Florida, United States / Reston Virginia, United States
- **Posted:** 2026-07-20
- **Last confirmed live:** 2026-09-14
- **Apply:** https://job-boards.greenhouse.io/onenergy/jobs/4317457009

## Job description

ON.energy is building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software, ON.energy develops projects worldwide that set new benchmarks for resilience.

The Software & Controls Engineer is responsible for the design, development, testing, integration, and commissioning of control software and automation systems that ensure the reliable, efficient, and safe operation of energy storage systems and power infrastructure projects. This role bridges software engineering, control systems, and field deployment, working closely with internal engineering teams, project management, vendors, and clients to deliver high-performance control and SCADA solutions that meet safety, regulatory, and operational requirements.

## Key Responsibilities

- Design, model, and implement control algorithms and control strategies for energy storage systems and power infrastructure.
- Contribute to system architecture discussions and define control strategy requirements and functional specifications.
- Design, develop, and maintain PLC, HMI, and embedded/control software for energy storage and distributed energy systems.
- Configure, integrate, and maintain SCADA systems for BESS and power infrastructure projects.
- Write clean, efficient, maintainable, and well-documented code following best practices.
- Build automation scripts, testing tools, simulation environments, and continuous integration pipelines.
- Implement version control, software documentation, and CI/CD workflows.
- Collaborate with electrical, mechanical, firmware, and field service teams to ensure full system functionality and seamless integration.
- Support the selection, configuration, and integration of control hardware, including controllers, relays, meters, and network devices.
- Conduct Factory Acceptance Tests (FATs) and Site Acceptance Tests (SATs).
- Diagnose and resolve issues related to control logic, real-time execution, PLC/SCADA behavior, and system performance, both remotely and on-site.
- Ensure compliance with cybersecurity requirements and relevant standards and codes (e.g., UL, IEEE, NFPA).
- Support installation, commissioning, field deployments, and ongoing operational troubleshooting.
- Interface with clients, vendors, and internal stakeholders to provide technical documentation, training, and ongoing support.

## Requirements

- Bachelor’s degree in Electrical Engineering, Controls, Software Engineering, or a related field, or equivalent experience.
- 3-5 years of experience developing PLC, HMI, and control software for industrial or energy systems
- Strong object-oriented programming skills (e.g., C++, C#, Python, or similar).
- Hands-on experience with Siemens PLC programming (TIA Portal).
- Experience with Ignition SCADA, including HMI development and system integration.
- Familiarity with control algorithms, real-time systems, and industrial automation concepts.
- Knowledge of industrial communication protocols (e.g., Modbus, OPC UA, Profinet).
- Experience with version control systems and structured software development practices.
- Ability to troubleshoot control systems both remotely and on-site.
- Willingness to travel for commissioning and field deployments, including travel to the United States

For US-based roles - What you’ll get:

- Competitive salary + annual performance-based bonus eligibility
- Medical, dental, and vision insurance
- 401(k) with company match
- Paid time off and company holidays

For Mexico-based roles - What you’ll get:

- Competitive salary + annual performance bonus eligibility
- Christmas Bonus (Aguinaldo): 30 days
- Major medical expenses and life insurance
- Paid time off and holidays (per local policy)

For all roles:

- Professional development and growth opportunities
- Opportunity to grow with a mission-driven team shaping the future of clean energy
- Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
- Accommodations: If you need an accommodation during the application process, email recruitment@onenergystorage.com
- Benefits vary by role and location and are subject to change.

Agency Notice: ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.

## About ON.energy

## Company Overview
- **One-liner**: ON.energy supplies and operates hyperscale power systems built to meet the world’s most demanding resilience challenges, delivering grid-safe energy and AI infrastructure through patented technology and proprietary software.
- **Entity Type**: Private (Series B, multiple debt financing rounds)
- **Headquarters**: Miami, Florida, United States
- **Founded**: 2016
- **Founders**: Alan Cooper (CEO & Co-Founder) and Ricardo De Azevedo (CTO & Co-Founder)

## Core Business
- **Primary Industry**: Energy Technology (energy storage, battery systems, critical power infrastructure)
- **Target Customers**: AI data centers, mission-critical facilities, grid-scale asset owners (B2B, enterprise, infrastructure)
- **Mission/Purpose**: To build the backbone of energy and AI infrastructure, making energy resilient, clean, abundant and affordable while solving the toughest power problems in the world.

## Products & Services
- **Hyperscale Power Systems**: Custom, end-to-end solutions for AI data centers and mission-critical facilities, combining advanced power electronics, battery storage and proprietary control software.
- **ON.command™ Energy Management System**: Proprietary software platform for managing gigawatt-scale deployments, optimizing grid stability, energy arbitrage, and uptime.
- **AI.UPS™ Platform**: Patented microgrid control system designed to deliver flickerless, full-facility protection with up to Tier 4 performance for mission-critical facilities.
- **Battery Energy Storage Systems (BESS)**: Grid-scale and commercial & industrial storage solutions for frequency regulation, peak shaving, and renewable integration.
- **Fault-Tolerant Architectures**: Engineered solutions for the most demanding environments, built with Tier-1 components backed by 20-year warranties.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (private company)
- **Key Metric**: Total Funding: $262.6M (across multiple debt and equity rounds, including Series B led by Ultra Capital in 2023); Annual Revenue: $4.5M (per LinkedIn estimate, likely reflective of earlier stage); 3 GW+ operating & under construction; 10+ GW production capacity
- **Notable Investors/Partners**: Ultra Capital (Series B lead), SDCL Energy Efficiency Income Trust, Lombard Odier Investment Managers, Live Oak Bank, BridgePeak Energy Capital, Pathward
- **Growth Signals**: 143% headcount growth YoY (148 employees as of 2026), 875% job posting growth YoY (52 open positions), 75+ projects across the Americas, $77.6M debt financing in January 2025

## Competitive Advantages
- **Patented Technology**: Proprietary microgrid control systems (AI.UPS) and energy management software (ON.command) that set new global benchmarks for reliability and uptime (99.9% availability).
- **FEOC Compliant & U.S. Manufacturing**: Proudly engineered and built in America, meeting foreign entity of concern compliance – a key differentiator for domestic infrastructure projects.
- **Gigawatt-Scale Supply Chain**: 10+ GW production capacity with Tier-1 components and 20-year warranties, enabling rapid deployment at scale.
- **Track Record**: Over 150 years of combined team runtime, proven performance across industrial, manufacturing, infrastructure, transportation, and grid-scale storage.

## Strategic Focus
- **Grid-Safe AI Power**: Scaling hyperscale power solutions specifically designed for AI data centers, addressing grid volatility and power quality challenges.
- **Global Deployment**: Expanding across the Americas with a fully ramped supply chain and active projects in 9 countries (US, Mexico, Argentina, Peru, Chile, Canada, etc.).
- **Vertical Integration**: Continuing to develop proprietary hardware and software in-house, from R&D to commissioning and asset management.

## Why Work Here
- **Culture**: Described as dynamic, innovative, and far from traditional corporate mold – autonomous teams with high trust, fast decision-making, and a focus on impact. “If you want predictable, this isn’t it. If you want impact, welcome.”
- **Work Environment**: Cross-functional teams spanning engineering, product, finance, and operations. Locations include Miami (HQ), Houston, Mexico City, Atlanta, and field roles across the US. Hybrid/remote flexibility likely varies by role.
- **Growth Opportunities**: Rapidly scaling company (143% headcount growth) with opportunities in supply chain, project engineering, R&D, software, and IT. Emphasis on professional growth and learning from “the brightest minds in technology, product engineering, finance, and more.”
- **Mission-Driven**: Work that directly impacts energy resilience, clean energy adoption, and AI infrastructure – a chance to solve some of the toughest power problems globally.

## Sources
1. [ON.energy Website](https://www.on.energy/)
2. [ON.energy Greenhouse Careers](https://job-boards.greenhouse.io/onenergy)
3. [ON.energy LinkedIn](https://www.linkedin.com/company/on-es)
4. [ON.energy Team Page](https://www.on.energy/team)
5. [CB Insights - On.Energy Profile](https://www.cbinsights.com/company/onenergy)

## Other roles at ON.energy

- [Senior Test Engineer - HIL](https://feeny.ai/job/senior-test-engineer-hil-on-energy-houston-texas-tafgqv02q4w6) — Houston Texas, United States
- [Director of Advanced Solutions Engineering](https://feeny.ai/job/director-of-advanced-solutions-engineering-on-energy-houston-texas-01g11rsetrn0) — Houston Texas, United States / Miami Florida, United States
- [AWS Data Engineer](https://feeny.ai/job/aws-data-engineer-on-energy-argentina-mexico-city-mexico-city-mexico-eesj596ra6yx) — Argentina / Mexico City Mexico City, Mexico
- [Agile Coach - IT](https://feeny.ai/job/agile-coach-it-on-energy-mexico-city-mexico-city-xfkjammhnt5h) — Mexico City Mexico City, Mexico
- [Senior Controls Designer](https://feeny.ai/job/senior-controls-designer-on-energy-houston-texas-hwzbce3gmc9m) — Houston Texas, United States / Mexico City Mexico City, Mexico
- [IT Support](https://feeny.ai/job/it-support-on-energy-reston-virginia-mxb91923whbk) — Reston Virginia, United States
- [Enterprise Application Support Specialist](https://feeny.ai/job/enterprise-application-support-specialist-on-energy-houston-texas-qd98n6fgk2my) — Houston Texas, United States / Miami Florida, United States
- [Junior Simulation Engineer - EMS](https://feeny.ai/job/junior-simulation-engineer-ems-on-energy-mexico-dgtdpzmc0wnn) — Mexico
- [Corporate Paralegal I](https://feeny.ai/job/corporate-paralegal-i-on-energy-miami-florida-spf0nysqx5qp) — Miami Florida, United States
- [AI Engineer](https://feeny.ai/job/ai-engineer-on-energy-houston-texas-1f8svafy65y5) — Houston Texas, United States