Core API - Stability, Test Automation & Continous Integration

Enhancing Kafka implementation and test automation on CI pipelines to boost reliability and delivery velocity

Duration

10 months

Duration

10 months

Team

2 Full-stack Developers, 1 QA Engineer, Augmented by NetForemost DevOps for pipeline best-practices

Engagement Model

Dedicated Teams

Engagement Model

Dedicated Teams

Tools

New engineer ramp-up time decreased by more than 50 %

Tools

New engineer ramp-up time decreased by more than 50 %

THE CHALLENGE

  1. Legacy bugs & tech debt – Core endpoints produced intermittent 5xx errors that were hard to reproduce.

  2. Low observability – No centralized logging or KPIs to diagnose issues.

  3. Glacial releases – Manual regression testing meant a six-week deployment cadence.

  4. Knowledge gaps – Sparse documentation made it painful for new hires to contribute.


BetterTrucks needed a reliable, observable, and testable API layer—without halting daily operations.

THE CHALLENGE

  1. Legacy bugs & tech debt – Core endpoints produced intermittent 5xx errors that were hard to reproduce.

  2. Low observability – No centralized logging or KPIs to diagnose issues.

  3. Glacial releases – Manual regression testing meant a six-week deployment cadence.

  4. Knowledge gaps – Sparse documentation made it painful for new hires to contribute.


BetterTrucks needed a reliable, observable, and testable API layer—without halting daily operations.

THE CHALLENGE

  1. Legacy bugs & tech debt – Core endpoints produced intermittent 5xx errors that were hard to reproduce.

  2. Low observability – No centralized logging or KPIs to diagnose issues.

  3. Glacial releases – Manual regression testing meant a six-week deployment cadence.

  4. Knowledge gaps – Sparse documentation made it painful for new hires to contribute.


BetterTrucks needed a reliable, observable, and testable API layer—without halting daily operations.

THE SOLUTION

1 • Stability First

  • Error budget defined: target ≤ 0.01 % failed requests.

  • Hot-path refactors in C# (.NET 7) eliminated race conditions and N+1 queries.

  • MySQL tuning (indexing, read replicas) cut P95 response times by 38 %.

2 • Test Automation & Coverage

  • Introduced xUnit + FluentAssertions for unit tests; SpecFlow for integration scenarios.

  • Built a contract-test harness to validate external partner integrations on every PR.

  • Reached 85 % coverage, catching regressions before they hit production.

3 • Observability & KPIs

  • OpenTelemetry instrumentation piped metrics to Datadog dashboards: latency, error rate, throughput, and deployment health.

  • SLO alerts in PagerDuty give ops a 15-minute lead on customer impact.

4 • Continuous Delivery

  • GitHub Actions workflow runs linting, build, tests, security scan, and blue-green deploy to AWS ECS.

  • Feature flags let product managers toggle functionality without redeploying

THE SOLUTION

1 • Stability First

  • Error budget defined: target ≤ 0.01 % failed requests.

  • Hot-path refactors in C# (.NET 7) eliminated race conditions and N+1 queries.

  • MySQL tuning (indexing, read replicas) cut P95 response times by 38 %.

2 • Test Automation & Coverage

  • Introduced xUnit + FluentAssertions for unit tests; SpecFlow for integration scenarios.

  • Built a contract-test harness to validate external partner integrations on every PR.

  • Reached 85 % coverage, catching regressions before they hit production.

3 • Observability & KPIs

  • OpenTelemetry instrumentation piped metrics to Datadog dashboards: latency, error rate, throughput, and deployment health.

  • SLO alerts in PagerDuty give ops a 15-minute lead on customer impact.

4 • Continuous Delivery

  • GitHub Actions workflow runs linting, build, tests, security scan, and blue-green deploy to AWS ECS.

  • Feature flags let product managers toggle functionality without redeploying

THE SOLUTION

1 • Stability First

  • Error budget defined: target ≤ 0.01 % failed requests.

  • Hot-path refactors in C# (.NET 7) eliminated race conditions and N+1 queries.

  • MySQL tuning (indexing, read replicas) cut P95 response times by 38 %.

2 • Test Automation & Coverage

  • Introduced xUnit + FluentAssertions for unit tests; SpecFlow for integration scenarios.

  • Built a contract-test harness to validate external partner integrations on every PR.

  • Reached 85 % coverage, catching regressions before they hit production.

3 • Observability & KPIs

  • OpenTelemetry instrumentation piped metrics to Datadog dashboards: latency, error rate, throughput, and deployment health.

  • SLO alerts in PagerDuty give ops a 15-minute lead on customer impact.

4 • Continuous Delivery

  • GitHub Actions workflow runs linting, build, tests, security scan, and blue-green deploy to AWS ECS.

  • Feature flags let product managers toggle functionality without redeploying

THE OUTCOME

  • Five-nines mindset: 99.99 % uptime sustained over the last 90 days.

  • Deployment velocity tripled: shipping every 2 weeks with near-zero rollbacks.

  • Confidence at scale: Automated suite prevents 75 % of previously recurring production bugs.


THE OUTCOME

  • Five-nines mindset: 99.99 % uptime sustained over the last 90 days.

  • Deployment velocity tripled: shipping every 2 weeks with near-zero rollbacks.

  • Confidence at scale: Automated suite prevents 75 % of previously recurring production bugs.


THE OUTCOME

  • Five-nines mindset: 99.99 % uptime sustained over the last 90 days.

  • Deployment velocity tripled: shipping every 2 weeks with near-zero rollbacks.

  • Confidence at scale: Automated suite prevents 75 % of previously recurring production bugs.


Testimony

“NetForemost turned our Core API from a black-box liability into a measurable, high-velocity asset. We ship more often, break less, and sleep better.”

Mike Koleno, CTO, BetterTrucks

Reach out anytime

Let’s Stay Connected

Got questions or want to collaborate? Feel free to reach out—I'm open to new projects or just a casual chat!

Reach out anytime

Let’s Stay Connected

Got questions or want to collaborate? Feel free to reach out—I'm open to new projects or just a casual chat!

Reach out anytime

Let’s Stay Connected

Got questions or want to collaborate? Feel free to reach out—I'm open to new projects or just a casual chat!