Partnering for Quality
How We Embedded a Unit Testing Team to Support a Healthtech Client’s Development Team
Project Overview
A fast-growing Healthtech company needed help improving their code quality without slowing their developers down. They had a strong internal team building a React + Express application, but testing was often an afterthought.
SoftCode stepped in to provide a dedicated team focused on writing and maintaining unit and integration tests, improving coverage, and catching issues early—all while working alongside the client’s existing developers.
CLIENT
Confidential
INDUSTRY
HealthTech
TIMELINE
12 Months
SERVICES
Unit testing, code quality review, issue detection
The Challenge
- Minimal or inconsistent test coverage across their frontend and backend.
- Growing concern about regressions as new features rolled out.
- No dedicated resources to write and maintain tests or flag potential code quality issues.
How We Solved It
SoftCode provided a dedicated team of QA-focused developers who embedded directly with the client’s engineering team. Our mission: support their developers by taking full ownership of testing and quality assurance.
Unit Testing
Automated testing using Jest and React Testing Library across both frontend and backend
Code Review
Proactive code reviews and feedback to catch problems early
Real-time Collaboration
Seamless collaboration during sprints to stay aligned with feature development
Our Implementation
Our process was designed in two phases for maximum long-term impact:
Phase 1: Establish a Baseline
We began by auditing the existing React frontend and Express backend to identify gaps in test coverage and structure. Much of the existing code lacked automated testing, so we prioritized high-impact areas and began implementing foundational unit and integration tests using Jest and React Testing Library.
In parallel, we standardized the test environment and structure across the project. This made it easier for both our team and the client’s developers to maintain consistency, onboard quickly, and avoid redundancy or fragmented testing logic.
Phase 2: Continuous Coverage + Backfill
With a stable baseline in place, we shifted to a process that integrated directly into the client’s development workflow. We worked alongside their developers during sprints, writing tests for new features as they were built, and providing feedback on edge cases or potential issues during code reviews.
At the same time, we developed a strategy to backfill tests in legacy code. We focused first on modules that were frequently updated or business-critical, gradually increasing overall coverage without disrupting active development. This two-track approach helped reduce regressions while improving long-term maintainability.
The Impact
Our team delivered significant improvements across all key metrics.
Test Coverage across the Codebase
Reduction in production bugs
Faster deployment confidence
Integration with the client’s workflow
“SoftCode helped us level up our testing practices without slowing us down. They were a natural extension of our team.”
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