Legacy System Modernization built for HR Tech companies
What is Legacy System Modernization?
We modernize legacy systems without breaking the business processes that depend on them. For HR Tech companies, this means navigating GDPR, EEOC guidelines (US) while shipping fast.
Who needs Legacy System Modernization for HR Tech?
- Disconnected ATS, payroll and HRIS systems
- Compliance with multi-jurisdiction labor laws
- Low employee adoption of internal HR tools
- Legacy systems too fragile for anyone to touch
- Key knowledge locked in one retiring engineer's head
Best Legacy System Modernization company
HR software must serve both compliance teams and the employees who actually have to use it daily.
If your HR Tech business needs Legacy System Modernization, we've already solved most of the hard parts.
Talk to our HR Tech Legacy System Modernization specialists this week
Book a free 30-minute discovery callThe real cost of getting Legacy System Modernization wrong in HR Tech
- Disconnected ATS, payroll and HRIS systems
- Compliance with multi-jurisdiction labor laws
- Low employee adoption of internal HR tools
- Bias and fairness concerns in hiring algorithms
- Integrating background check and benefits providers
How we tailor Legacy System Modernization to what HR Tech teams actually need
Legacy codebase audit and risk assessment
Incremental migration strategy (strangler pattern)
Database and data migration planning
Modern API layer over legacy core
Parallel-run testing and rollback planning
Core Technology Stack
Java.NETPHPNode.jsPostgreSQLDockerKubernetes
Timeline, investment & compliance
Typical timeline
12-24 weeks depending on system size
Typical investment
$40,000 - $250,000
Legacy System Modernization engagements in this combination typically need to account for:
- GDPR
- EEOC guidelines (US)
- Local labor law compliance
- SOC 2 for HR data handling
Our Approach
The hardest part of HR Tech work is rarely the feature list — it's disconnected ATS, payroll and HRIS systems while staying inside GDPR. We structure sprints and code review around that constraint rather than treating compliance as a final pass.
See our case studiesTalk to our HR Tech Legacy System Modernization specialists this week
Get a free project cost estimateFrequently Asked Questions
Most Legacy System Modernization engagements take 12-24 weeks depending on system size, depending on scope and how clear the requirements are upfront. We'll give you a firm timeline estimate after a short discovery call, not a generic range.
Legacy System Modernization projects with us typically range from $40,000 - $250,000, scaled to the complexity of your requirements. We provide a detailed, itemized estimate before any work begins so there are no surprises mid-project.
For legacy system modernization, we typically work with Java, .NET, PHP, Node.js, chosen based on your specific scalability and integration requirements. We're not tied to a single stack and will recommend the right tools for your situation rather than our default.
A typical legacy system modernization engagement includes legacy codebase audit and risk assessment, along with the other deliverables outlined in our proposal, such as documentation and a post-launch support window. The exact scope is tailored to your project during discovery.
Most clients come to us for legacy system modernization because of legacy systems too fragile for anyone to touch, among other related challenges. We start every engagement by mapping your specific pain points before writing a single line of code.
We've delivered multiple hr tech projects addressing challenges like disconnected ats, payroll and hris systems. We helped an HR platform reduce time-to-hire by 31% with automated candidate screening workflows.
For hr tech clients, we pay close attention to GDPR, EEOC guidelines (US), building these requirements into the architecture from day one rather than retrofitting them later. We'll confirm which specific regulations apply to your business during discovery.
The most common challenges we solve for hr tech clients include disconnected ats, payroll and hris systems and compliance with multi-jurisdiction labor laws. We tailor our discovery process to surface the specific version of these problems your business faces.