Skip to main content
Test Double company logo
Services
Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
Product Management
Launch modern product orgs
Legacy Modernization
Renovate legacy software systems
DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
Technical Recruitment
Build tech & product teams
Technical Assessments
Uncover root causes & improvements
Case Studies
Solutions
Accelerate Quality Software
Software Delivery, DevOps, & Product Delivery
Maximize Software Investments
Product Performance, Product Scaling, & Technical Assessments
Future-Proof Innovative Software
Legacy Modernization, Product Transformation, Upgrade Rails, Technical Recruitment
About
About
What's a test double?
Approach
Meeting you where you are
Founder's Story
The origin of our mission
Culture
Culture & Careers
Double Agents decoded
Great Causes
Great code for great causes
EDI
Equity, diversity & inclusion
Insights
All Insights
Hot takes and tips for all things software
Leadership
Bold opinions and insights for tech leaders
Developer
Essential coding tutorials and tools
Product Manager
Practical advice for real-world challenges
Say Hello
Test Double logo
Menu
Services
BackGrid of dots icon
Services Overview
Holistic software investment consulting
Software Delivery
Accelerate quality software development
Product Management
Launch modern product orgs
Legacy Modernization
Renovate legacy software systems
Cycle icon
DevOps
Scale infrastructure smoothly
Upgrade Rails
Update Rails versions seamlessly
Technical Recruitment
Build tech & product teams
Technical Assessments
Uncover root causes & improvements
Case Studies
Solutions
Solutions
Accelerate Quality Software
Software Delivery, DevOps, & Product Delivery
Maximize Software Investments
Product Performance, Product Scaling, & Technical Assessments
Future-Proof Innovative Software
Legacy Modernization, Product Transformation, Upgrade Rails, Technical Recruitment
About
About
About
What's a test double?
Approach
Meeting you where you are
Founder's Story
The origin of our mission
Culture
Culture
Culture & Careers
Double Agents decoded
Great Causes
Great code for great causes
EDI
Equity, diversity & inclusion
Insights
Insights
All Insights
Hot takes and tips for all things software
Leadership
Bold opinions and insights for tech leaders
Developer
Essential coding tutorials and tools
Product Manager
Practical advice for real-world challenges
Say hello

Case Studies

Evidence from engagementsGreat work

Because our clients trust us to solve some of their most important problems, most of our engagements remain highly classified. However, we can share some field reports from declassified engagements.

Cars company logo

Retooling for a robust, modern infrastructure

Cars.com needed to modernize its systems and development processes to support its next generation of products, requiring a transition to a cloud infrastructure and the adoption of new methodologies.

Our software consultants jumped in to lead the legacy rewrite and, as the team grew, worked side-by-side with developers to help them onboard.

Icon of hands of different colors reaching up

Unite as full-stack development team around new technology

Icon of a distributed org

Ask hard questions to clarify complexity

Icon of a robot

Pressure test edge cases to avoid pitfalls

Icon of a laptop

Coach team on remote work best practices

Discover how we did it
A piggy bank on a black background
Gusto company logo

A Ruby on Rails upgrade with no interruptions

Gusto needed to upgrade from a legacy version of Rails, but they couldn't pull their experts away from delivering critical features and shipping new products.

Test Double stepped in to lead a smooth rollout of Rails upgrades at one of the largest Rails codebases in the world — without interrupting day-to-day development or operations of Gusto's engineering team.

Icon of smartphone with a dollar sign

Rolled out upgrade on time & under budget

1,700
Icon of an award ribbon

Fixed 1,700 test failures from initial upgrade

Icon of a dollar sign

Incremental upgrades saved both time & money

Icon of a ball of yarn

Untangle legacy code & modernize tech stack in tandem

Discover how we did it
Dart whizzing through foilage

Strategic prioritization drives 500% product release boost

Product teams at a global retail company were working at an unsustainable pace, yet still missing deadlines and KPIs.

After engaging our product management consultants, highly focused product teams were able to ramp up product releases from once a quarter to at least 2x a month.

500%

Ramp up product releases from 1x per quarter to at least 2x a month

Icon of a box being unpackaged

Successful launch of two new technical products

Icon of a maze map

Clear strategy, vision, and measurements for shared accountability

Product transformation for focus and portfolio strategy alignment

Discover how we did it
Lightbulbs hang from a string against a sky with puffy clouds
Enbala company logo

Scaling a distributed energy management system

Enbala, a virtual power plant and distributed energy resource management platform, needed help scaling a distributed, well-tested, fault-tolerant umbrella application, so they could process gigabytes of data per second.

Our consultants solved complex technical challenges and scale with more efficient systems and reduced rework.

Icon of a crane picking up boxes

Achieve massive scale & successful acquisition by industry leader

Icon of a decreasing line chart

More efficient systems for reduced rework & lower overhead

Icon of a brain

Intentional planning & improved workflows for increased predictability

Three hands putting together a cube

Improve quality of life with culture of team growth & engineering excellence

Discover how we did it
Clever company logo

Efficient data automation for 940+ school districts

Clever, a platform powering digital learning for K12 schools, had two mission critical projects to complete on tight deadlines: automating processes to securely move school district data and building out a self-service tool to provision users into other identity providers.

Test Double consultants hit both aggressive deadlines, leaving the team with well-tested code easily understood.

12.6M

Automatic rostering requests from 940+ districts & 12.6M daily API requests

Icon of a fast shoe

Identify gaps in architecture & tooling to improve immediate performance

Icon checkmark on a box

Meet aggressive deadlines with well-tested, secure & maintainable code

Discover how we did it
Paper bag full of prescription medications

Launching a startup's new product in record time

A fast-paced startup dedicated to improving medication access was falling short of revenue and profitability benchmarks.

Through Test Double-led product coaching, the startup created clarity on an aligned strategic vision and its decision-making framework — and successfully launched a new product in record time.

Clarity for aligned strategic vision and decision-making framework.

Icon of a fast shoe

Successfully launch new product in record time

3

Pare down 20 major potential initiatives into three focus areas

$2M

Workshops identify innovative product with $2 million in top-line revenue potential

Discover how we did it
A futuristic image of a cloud of a hollow box with neon rainbow lighting.
Mode company logo

Scaling a platform for maintainability

Mode came to Test Double in need of a more flexible and maintainable infrastructure, especially when it came to managing deployments.

Our DevOps consultants constructed a series of infrastructure components that could be combined to meet each team’s unique need — allowing dev teams to quickly and easily deliver in a consistent way.

15+

Support 5+ development teams deploying 15+ services

An icon of a bright green brain

Dozens of infrastructure modules allow teams to choose right set of tools

Enable reliable, repeatable processes for daily deployments across production services

Icon of a bright green running shoe

Dramatically increase throughput & minimize reliance on single infrastructure team

Discover how we did it
Nurse stands with tablet in a hospital hallway
Hospital Referral Services

From manual bottlenecks to digital efficiency: HRS transforms patient assistance

Hospital Referral Services (HRS) struggled with a manual, paper-based process for helping hospital patients sign up for financial assistance. Test Double helped HRS from greenfield to execution to increase efficiency. We built a custom health services software solution that reduced operational costs and enabled scaling.

Dollar sign

Reduce operational costs by eliminating manual entry tasks so staff can focus on valuable work

network of people

Increased new business, including becoming sole Medicaid eligibility vendor of large health systems in Cleveland and Columbus

Discover how we did it
Lightbuld against a purple and neon green background
CPower company logo

Powering complex solutions: from prototype to functional

CPower leadership was staffing up an engineering team, but had an urgent and high-priority need to develop a real-time simulation system. They turned to Test Double to deliver functionality on a critical prototype, advancing from prototypes to fully functioning simulations built on Elixir.

Icon of a reload symbol

Simulation software development with time-dependent behavior & reproducible randomness

Icon of a brain

Architectural decision records for lasting impact on maintainable code

Icon of multiple people putting a cube together

Onboard new engineering team & get them up to speed quickly

Discover how we did it
Friendly physical therapy office
Verb company logo

From idea to market-ready: Build and launch physical therapy MVP within budget

Test Double partnered with Verb on a structured and iterative MVP development process, translating initial ideas into actionable steps and validating each phase with real-world user insights.

250

250 registered users validated core value and ensure product’s market readiness

Beaker

Smooth process with continuous testing and refining to ensure product’s technical viability

Discover how we did it
The image features a bright green background with the Test Double logo in the top right corner. A message reads: "Treehouse turned to Test Double for an audit of their cloud infrastructure. We helped reduce AWS costs by 25 percent and cut from 40 servers to 3." Below the text, there is an illustration of a person in a trench coat and fedora, resembling a detective. At the bottom, there is a caption that says, "Peek inside the case file now," accompanied by an icon of a folder.
Treehouse company logo

Streamlining AWS infrastructure for 25% cost savings

Simplifying AWS infrastructure helps unlock savings on both time and money. Why pay for complexity you don't need that will only make things harder to manage?

The technology team behind Treehouse wanted an audit of their platform code base and cloud infrastructure, with goals to reduce complexity and cut monthly expenses.

Learn how our software consultant helped reduce AWS costs by 25%, streamline infrastructure, and improve security.

25%

25% reduction in AWS cost and plan to increase savings to 40%

$100k

Document data pipeline for possible cost reduction of $50 - 100k per year

Icon of a cloud with gears

Reduce infrastructure from ~40 servers to 3 servers + serverless ECS cluster

Icon of gears

Remove or upgrade dependencies on end-of-life projects to reduce business risk

Discover how we did it
A rocket launching out of a laptop, symbolizing innovation and speed to liftoff. The background features a starry night sky, with the rocket surrounded by clouds of smoke, representing the burst of energy and creativity in the digital space.
AdaMarie company logo

Enabled go to market in half the time with scalable app

Despite a significant investment with a previous vendor, the AdaMarie team was working long hours and was still an estimated 6 months out from its GA release.

Our developers and DevOps experts quickly stabilized their technical platform and go-to-market strategy — in half the time and for a fraction of the cost.

‍

3

Condense General Availability release time in half from 6 to 3 months

Improve infrastructure to enable regular, safe releases of new functionality

Security icon badge

Identify abuse vector & security referral, implement infrastructure cost monitoring

Box with a check mark

Enable engineering leadership to focus on strategic tech future

Icon hands of different colors reaching up

Onboard 3 new engineers, who shipped code within 48 hours

Discover how we did it
Bridgecare company logo

Speeding up app build and page load times

Bridgecare, a childcare data management platform, was struggling with slow build times and sluggish page load times. One of our JavaScript experts quickly identified the root cause of their performance issues and resolved them through configuration corrections.

Icon of a brain

Immediate identification and resolution of root cause

Icon showing three hands putting together a cube

Tech leader free to concentrate on high-priority projects

Icon of a crane

Business scaled to address urgent, unmet childcare needs

Discover how we did it
Boxes with shopping cart symbols

$1.1 million increase in sales through data-led strategies

A popular U.S.-based magazine was not seeing the expected return on its investments and had fears of an incoming recession.

Our product management consultants implemented a culture of data-led decision making and optimized e-commerce pages — leading to millions of dollars saved or generated in e-commerce.

$7M

Found e-commerce checkout issue causing lost revenue up to $7 million

$1M

Increase sales by up to $1.1 million annually with upsells and reviews

Icon of a dollar symbol

Halt project—saving estimated $186,000 in yearly losses

Discover how we did it
Hands typing on a laptop with a lightbulb emerging
m2e company logo

Streamlined tech recruitment operations in 2 weeks

m2e hired an internal recruiter who ended up being a very poor fit for the company. They desperately needed to hire a recruiter, but were not willing to make another mishire.

Our recruitment team streamlined recruitment operations within 2 weeks and hired a right-fit talent manager in under 2 months.

2

Recruitment Operations streamlined within 2 weeks

Icon of one hand dropping a cube in another hand

5 top candidates, 1 offer made & accepted

2

Right-fit Talent Manager hired in under 2 months

Icon of a heart in hands

In first month TalentManager brings multiple candidates to offer stage

Discover how we did it
Pink Ribbon Girls company logo

Turbocharging data and data visualization for cancer support

Like many non-profits, Pink Ribbon Girls (PRG) spent a lot of time manually compiling and segmenting data for program operations and to identify impact numbers for grant requests, annual reports, and more.

These were still manual, time-consuming, or both.

Our consultants set up staff with usable insights in real-time and enhanced the data with more detailed insights and visualizations.

Icon of a fast shoe

Immediate data segmentation to increase efficiency

Icon of a heart

Real-time insights to increase impact

Icon of a monkey wrench and gears

Infrastructure stability for worry free tech

Icon of a compass

Enhanced visualizations for data-driven decision making

Discover how we did it
Can't Stop Columbus company logo

Simplifying backend tasks with user-friendly solution

Curbside Concerts is a nonprofit that started during the pandemic with a simple Google Form. As demand grew quickly, they needed help developing an easy-to-use public-facing interface and reducing the manual burden on the back-end.

Our consultants delivered a fully-realized website and scheduling tools in just one month.

700

free concerts

750

Provide joy to more than 750 seniors

50+

Paid engagements for 50+ local musicians over 7 months

Discover how we did it
Black and white art photo of a well-used remote workspace

Consulting services

Like what we have to say about building great software and great teams?

Discover what we do
Test Double Executive Leadership Team

What’s a Test Double?

Want to know more about our point of view on what makes for great software?

Get to know us
Testimonial
Empathetic Collaborators
Test Double wasn’t just in a rush to fill open seats. Instead, they worked with us as a business partner to ensure optimal technical and cultural fit.
Jeff MacAuley
Enbala
Testimonial
Holistic Problem Solving
Kenneth delivered features quickly from week one and enabled us to catch the school sales cycle for our new product. He also did extra credit beyond the sprint: raised the bar on automated testing and proactively helped ramp up new team members. Kenneth reshaped my views on the value an embedded contractor can bring to a team.
Marco Kitagawa Pedroso
Clever
Testimonial
Holistic Problem Solving
No task is too big or small, too glamorous or dirty—they are all handled with care and attention to detail. Test Double has been by far my favorite consulting experience in my career.
Greg Heidorn
Cars
A keyboard, glasses, test double logo and rubber duckies.
Two test double employees wearing test double t-shirts embrace and smile at the camera.
Two people embrace and smile at the camera at a group event.
A person laughs at the camera in a group setting with a group of people.
Test double rubber duckie in a pool.
A keyboard, glasses, test double logo and rubber duckies.
Two test double employees wearing test double t-shirts embrace and smile at the camera.
Two people embrace and smile at the camera at a group event.
A person laughs at the camera in a group setting with a group of people.
Test double rubber duckie in a pool.
A keyboard, glasses, test double logo and rubber duckies.
Two test double employees wearing test double t-shirts embrace and smile at the camera.
Two people embrace and smile at the camera at a group event.
A person laughs at the camera in a group setting with a group of people.
Test double rubber duckie in a pool.

Let’s collaborate

We’re the team on a mission to improve how the world builds software.

Let’s talk about how to tackle hard software investment problems across the entire product life cycle.

Get started
Calendar icon

Chat with our team

Test Double Office Hours

Curious about what we're like to work with? We offer 30-minute turbocharged office hours with no strings attached—just pure, unadulterated brainstorm power.

Learn more
Test Double company logo
Improving the way the world builds software.
What we do
Services OverviewSoftware DeliveryProduct ManagementLegacy ModernizationDevOpsUpgrade RailsTechnical RecruitmentTechnical Assessments
Who WE ARE
About UsCulture & CareersGreat CausesEDIOur TeamContact UsNews & AwardsN.E.A.T.
Resources
Case StudiesAll InsightsLeadership InsightsDeveloper InsightsProduct InsightsPairing & Office Hours
NEWSLETTER
Sign up hear about our latest innovations.
Your email has been added!
Oops! Something went wrong while submitting the form.
Standard Ruby badge
614.349.4279hello@testdouble.com
Privacy Policy
© 2020 Test Double. All Rights Reserved.