Scalable Performance Engineering
for a High-Traffic B2B SaaS Marketplace

About Client

The client is a market leader in the B2B equipment remarketing industry. Their mission-critical, enterprise-grade SaaS platform, built on a cloud-native microservices architecture, provides a revolutionary way for global businesses to manage, remarket, and sell new and used heavy equipment efficiently.

Key Results Achieved

Slashed CPU utilization under peak load through targeted backend optimization.

Achieved and maintained consistent, predictable response times during load testing.

Validated the platform's architecture to handle high user concurrency without performance degradation.

Dramatically improved backend responsiveness with precision performance tuning.

Established a framework for proactive detection and rapid resolution of performance bottlenecks.

Guaranteed a seamless and responsive user experience during peak traffic scenarios.

"Their expertise gave us the confidence to scale our platform globally without compromising on speed or stability"

Verified Client

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Challenges We Addressed

Initial success and a growing user base revealed that the platform struggled under heavy load, threatening user experience and business growth. The client needed to guarantee stability and speed to maintain credibility and continue its expansion.

Technical Challenges

Simulating thousands of concurrent users across real-time listing, lead generation, and checkout workflows.

Detecting infrastructure bottlenecks, such as CPU/memory spikes and network saturation.

Operational Challenges

Ensuring test environment parity with production for accurate performance insights.

Coordinating across QA, DevOps, and Backend teams for test planning, execution, and resolution.

Establishing real-time observability and monitoring dashboards during load tests.

Why It Mattered

Ensuring high performance and scalability was critical to support the client's growing global user base and real-time equipment transactions. Reliable load handling directly impacted user experience, sales velocity, and platform credibility in a competitive B2B market.

Our Solution for the Client

Our Approach:

Architected hyper-realistic load scenarios that meticulously mirrored real-world production traffic patterns and user behaviors.

Executed a multi-faceted testing strategy, including baseline, stress, and endurance tests, to evaluate system behavior under diverse load conditions.

Using advanced APM tools and log analysis, we pinpointed bottlenecks with surgical precision and collaborated with engineering teams to implement effective resolutions.

Conducted rigorous re-testing post-optimization to validate every improvement and ensure strict compliance with performance SLAs.

Our Tools :

Before vs After

Metric	Before	After
CPU Utilization at Peak Load	85-95% (Unstable, frequent throttling)	< 60% (Stable and efficient)
Average API Response Time	~2500ms (Noticeable user delays)	< 600ms (Instantaneous feel)
Error Rate Under Load	15% (High risk of failed transactions)	< 1% (Reliable and resilient)
Max Concurrent Users Handled	1,500 (System struggled)	5,000+ (Scaled without degradation)

CPU Utilization at Peak Load

Before

85-95% (Unstable, frequent throttling)

After

< 60% (Stable and efficient)

Average API Response Time

Before

~2500ms (Noticeable user delays)

After

< 600ms (Instantaneous feel)

Error Rate Under Load

Before

15% (High risk of failed transactions)

After

< 1% (Reliable and resilient)

Max Concurrent Users Handled

Before

1,500 (System struggled)

After

5,000+ (Scaled without degradation)

Client Testimonial

"The testing efforts from BugRaptors gave us the confidence to scale our platform globally without compromising speed or stability. Their team didn't just find problems; they provided deep insights and collaborated closely with our engineers to resolve critical bottlenecks. This partnership was instrumental in hardening our infrastructure and ensuring a seamless experience for our users, even during the most demanding traffic peaks."

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BugRaptors is one of the best software testing companies headquartered in India and the US, which is committed to catering to the diverse QA needs of any business. We are one of the fastest-growing QA companies; striving to deliver technology-oriented QA services, worldwide. BugRaptors is a team of 200+ ISTQB-certified testers, along with ISO 9001:2018 and ISO 27001 certifications.