Charge OnSite
From Unstable Product to Enterprise EV Platform
How Charge OnSite scaled across 62 locations and 12 companies without building an in-house team.
Project at a Glance
What We Were Working With
EV Charging / PropTech
Industry
Dedicated Development Team
Service
Node.js, React, Python, OCPP Protocol
Technologies
5 Engineers (Full Dedicated Team)
Team Size
3 Years / 54 Sprints
Duration
Multi-state US – 62 Locations
Location
Project Overview
What Charge OnSite Does
Charge OnSite helps property owners bring EV charging to their buildings without taking on the day-to-day operational burden. The company partners with landlords, hotel operators, office managers, and other property owners.
They handle the full charging experience, including hardware setup and ongoing maintenance. It also manages the software that powers bookings, payments, access control, and charger monitoring.
With Charge OnSite property owners get a single platform to manage all their chargers, giving them full visibility and control. At the same time, drivers can easily find, use, and pay for charging at any location.
The Challenge
What Charge OnSite was Up Against
Charge OnSite came to us after a difficult experience with their previous development team. The product existed, but it was unstable, difficult to scale, and not delivering the smooth experience their property-owner clients and EV drivers expected. Three problems were compounding at the same time.
Unreliable product
The existing platform had quality and stability issues that frustrated property owners and end users. It needed significant rework before it could support enterprise clients.
A hard technical problem
Charge OnSite needed Open Charge Point Protocol support to connect software with physical chargers. This expertise is rare, and local hiring would have been costly before scaling.
A Market Moving Quickly
Competitors were entering the EV charging space. Every month without a stable platform was a month the market moved without them.
The Solution
How We Helped
A dedicated team of five engineers took over full end-to-end delivery across 54 sprints over three years.
Stabilised the platform first
Before building new features, the team fixed what was broken -- performance, reliability, and the core user experience for property owners and drivers.
Solved the OCPP problem
The team trained internally, worked directly with hardware vendors, and implemented OCPP across multiple charger brands. Charge OnSite could now support any hardware their clients chose -- an advantage most competitors in the space did not have
Took operations off the founder's plate
Payroll, compliance, hardware, workspace -- handled entirely by the team. The founder's time went back into growing the business
Keeping Delivery Continuous
What Happened When Things Changed
1
Over a three-year engagement, priorities shift. Team members change. Hardware vendors run into issues. Client requirements evolve.
2
For Charge OnSite, the difference was having a delivery partner who could absorb those changes without slowing the business down.
3
When a team member left a replacement was in place within 24 hours, onboarded from sprint documentation, and productive within days. Delivery did not pause.
4
The measure of a long-term engineering partnership is not what happens when everything goes right.
5
For Charge OnSite, the answer was consistently: nothing the founder had to deal with.
Results
What Charge OnSite Achieved
$1.5M+
Saved in hiring and infrastructure costs
99.99%
System uptime maintained across all 62 locations
20,000+
Hours of product engineering delivered
50%+
Reduction in delivery costs vs. traditional software vendors
3x
Development capacity scaled in 6 months -- no increase in spend
70%
Faster client onboarding after platform automation
40%
Faster feature delivery vs. first development phase
Zero
Production downtime during team transitions across 3+ years
From the Client
What Charge OnSite Said
Really pleased with his performance. We asked for a full-stack engineer - which he is not - but he takes the challenge and performs really well.
Gabriel Sotomayor
Lead Developer, Charge OnSite
Very pleased with his performance. As the tech lead of Charge OnSite, he is performing well.
John Smith
CTO, Charge OnSite