Improving Oncology Platform Usability for Ontada
Usability and consistency
improved across oncology platforms for simpler use.
Data visualization
enhanced across oncology platforms to provide clearer insights.
Industries
Industries We Serve
Cross-industry engineering experience across regulated and high-growth sectors.
All IndustriesSuccess Story
Stabilizing CI for a Large-Scale Ruby on Rails Monolith
Improved test reliability, reduced wasted developer time, and enabled faster, more confident releases across the client’s engineering teams.
+25%
pipeline stability (from ~70% to over 95%) success.
Faster delivery
with fewer reruns, quicker releases, and higher confidence.
Technologies
Ruby on Rails
Docker
Argo CD
Rubocop
CI/CD pipelines
Expertise
QA / testing
CI/CD
DevOps
Ruby on Rails
Client Overview
Construction Software Company
Our client is a leading global platform that helps organizations manage construction projects more effectively. Its cloud-based solutions unify teams, simplify collaboration, and enable informed decision-making throughout the entire project lifecycle.
Industries:
Construction SaaS, Project management software
Country:
USA
Challenges
Flaky Tests Blocking Releases
The client’s Ruby on Rails monolith supported millions of lines of code, but its CI pipeline was unstable—slowing teams and creating business risk.
Have a Similar Problem?
Turn CI chaos into delivery confidence.
High failure rates
Pipelines failed frequently because of recurring flaky tests, leaving teams unsure whether failures were real or false positives.
Developer frustration
Engineers lost hours rerunning broken builds, creating frustration and lowering overall engineering productivity.
Release risk
Unstable CI pipelines often blocked releases, causing delays for new features and urgent hotfixes.
Scaling challenges
The massive Ruby on Rails monolith made debugging and root-cause analysis of failures slow and complex.
Have a Similar Problem?
Turn CI chaos into delivery confidence.
Why They Chose Us
Proven Expertise in CI/CD Stabilization
The client partnered with Zoolatech for our ability to improve engineering productivity by tackling complex CI/CD challenges at scale.
CI/CD mastery
Zoolatech’s team specializes in stabilizing pipelines for enterprise-scale systems, with deep knowledge of Ruby on Rails, Docker, and automation frameworks.
Productivity-driven approach
We focus on measurable impact—reducing wasted developer hours, improving release velocity, and delivering reliable pipelines that support long-term growth.
Zoolatech is a senior-heavy engineering firm with Silicon Valley roots and a Miami HQ, specializing in legacy modernization, system re-architecture, and AI deployment to drive long-term, compounding value.
2017
Year Founded
600+
Employees
96%
Client Satisfaction
Workflow
Systematic Effort to Eliminate Flaky Tests
Zoolatech followed a phased approach over six months, combining root-cause analysis, test fixes, and process guardrails to restore CI reliability.
Phase 1
Audit and categorization
Identified 20+ recurring flaky test patterns, mapped their causes, and prioritized fixes based on business impact.
Phase 2
Test fix campaign
Systematically resolved over 1,000 flaky test examples across the Ruby on Rails monolith, improving stability step by step.
Phase 3
Guardrails implementation
Introduced Rubocop rules at the PR level to block known bad practices and prevent new flaky patterns from entering the codebase.
Phase 4
Baseline reset
Reduced reliance on reruns by establishing a clean, consistent baseline that developers could trust for feedback.
Phase 5
Monitoring and optimization
Tracked CI health and success rates across branches, ensuring improvements held up under real-world usage.
Fixed over 1,000 flaky tests and added automated guardrails, raising CI pipeline success from ~70% to 95%+ and enabling faster, more reliable releases.
Solution
CI Stabilization Through Automation and Guardrails
Zoolatech blended tactical fixes with preventive measures to deliver long-term stability and higher developer confidence.
1,000+ flaky tests fixed
Addressed a backlog of unstable test cases and recurring failure patterns that had undermined pipeline reliability.
Automated guardrails
Added Rubocop rules at the PR stage, blocking poor practices and reducing the chance of new flaky tests being introduced.
Cleaner baselines
Reset pipelines with stable test sets, cutting down reruns and ensuring that CI feedback could be trusted.
Results
Reliable CI/CD at Scale
The client achieved major gains in CI stability, cutting wasted effort and enabling faster delivery cycles.
95% pipeline success
Master and release branches improved from ~70% to over 95% success rates, making pipelines consistently reliable.
+15% feature branch stability
Success rates rose from ~60–65% to 75–80%, reducing failed builds and accelerating merge cycles.
Developer time saved
Engineers spend far less time rerunning flaky tests or debugging false failures.
Business Value
Engineering Teams Regained Velocity
With CI stabilized, the client’s developers could shift focus from firefighting builds to delivering features and customer value.
Confidence in delivery
Reliable pipelines gave engineering leaders assurance that releases would pass consistently, reducing risk and delays.
Productivity gains
Developers reclaimed time previously lost to flaky tests, enabling faster feature delivery and higher morale.
Similar Case Studies
Discover how Zoolatech helps leading enterprises solve complex challenges.
