Featured Case Study

Legacy Application Modernization • Enterprise Technology

The Technical Debt Handoff That Boosted Revenue 30%

How a 20-year industry leader partnered with us to migrate 15 legacy applications while their team built the future, reducing incidents by 60% and increasing sales conversion by 8%.

Published: January 15, 2025  •  Financial Services Industry

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Key Results

50+

Engineers Freed

From legacy work to innovative features

15

Applications Migrated

In 12 months.

60%

Incident Reduction

Year-over-year improvement

The Challenge

After two decades of feature-first development, this market-leading company faced a critical inflection point. Following an acquisition, their new CTO made a bold decision: pause feature development to address mounting technical debt that was threatening business growth.

Key pain points included:

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4-hour deployment windows causing business disruption

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20+ years of accumulated technical debt across multiple platforms

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50 engineers stuck maintaining legacy systems instead of innovating

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Inefficient deployment processes causing frequent production issues

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Lack of SOC 2 compliance requirements

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High infrastructure costs due to over-provisioning

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Knowledge silos between Infrastructure and Software teams

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Unmanageable microservices architecture lacking observability

Our Solution

We became an extension of their team, taking complete ownership of legacy systems while enabling their engineers to focus on building the future.

1. Comprehensive Migration Strategy

Led "The Big Migration" - transitioning 15 legacy applications to a new V2 AWS environment managed with Terraform and infrastructure as code, with strict security controls.

2. DevOps Implementation

2. DevOps Transformation

Implemented 12-factor principles across all applications, moved from Jenkins to GitHub Actions, and established automated testing and deployment pipelines.

3. Observability Implementation

Deployed Datadog monitoring across the entire stack, enabling proactive incident response before customer impact and reducing average weekly errors by 50%.

4. Cloud Migration

4. Security Remediation

Established continuous security scanning, remediated over 1,000 security vulnerabilities, and achieved PCI compliance for the organization.

Phase 3: Migration & Testing (Months 5-8)

Gradual migration of services, comprehensive testing, and performance optimization.

Implementation Timeline

Phase 1: MVP (Months 1-2)

Embedded with client teams to understand the technical environment, completing initial migrations while building comprehensive system knowledge.

Phase 2: Independent Operations (Months 4-6)

Took full ownership of legacy systems, accelerating migration pace while client engineers transitioned to new development work.

Phase 3: Migration & Testing (Months 5-8)

Gradual migration of services, comprehensive testing, and performance optimization.

Phase 3: Stabilization & Optimization (Months 7-12)

Continued migrations while implementing monitoring, security improvements, and operational excellence practices.

Phase 3: Stabilization & Optimization (Months 7-12)

Continued migrations while implementing monitoring, security improvements, and operational excellence practices.

Phase 4: Long-term Partnership (Year 2+)

Maintaining and improving legacy systems while supporting gradual modernization efforts.

Results & Impact

The transformation delivered measurable business value beyond technical improvements:

1. Performance

Technical Empowerment

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8 percentage point increase in sales conversion

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Reduced churn through improved platform reliability

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Millions in annual development costs eliminated

1. Performance

Cost Optimization

Business Growth

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$2M annual infrastructure savings

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60% reduction in production incidents YoY

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1,000+ security vulnerabilities remediated

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50% reduction in weekly Sentry errors

By taking ownership of Ruby on Rails, React, Java, and Elixir applications, we enabled the client's team to build new services in modern languages, dramatically improving employee satisfaction and business capabilities. The improved platform stability directly contributed to the significant sales conversion increase.

Project Details

Industry

Education

Company Size

500-1000 employees

1,001 - 5,000 Employees

Project Duration

Ongoing

Team Size

8 engineers

Services

3 engineers

Services

Legacy Application Modernization

Technologies Used

AWS Docker Ruby on Rails Terraform PostgreSQL React Elixir Java ..Datadog

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Legacy Application Modernization

Refactor aging code to reduce risk

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MVPs and full-stack systems built for scale

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