This position is no longer available
Medellin Hybrid Contract

Resilient Co was looking for a Senior Performance QA Engineer (API Performance Testing)

Responsibilities

  • Design and implement API performance testing strategies (load, scalability, stress, endurance, volume).
  • Build and execute performance test plans that define users/transactions, duration, objectives, and success criteria.
  • Create and run tests using JMeter and/or Gatling to validate system behavior under load.
  • Analyze test results, identify bottlenecks, and recommend actionable remediation steps.
  • Collaborate with development, integration, and operations teams to reproduce issues and verify fixes.
  • Integrate performance testing into release cycles and provide guidance on performance gating.
  • Prepare concise, executive-ready summaries of findings, risks, and recommended next steps.
  • Leverage existing automation frameworks (Playwright, TypeScript, Cucumber) where applicable to augment testing coverage.
  • Mentor and provide technical guidance to other QA and performance team members.

Requirements

  • 5+ years of hands-on experience in performance testing with a focus on APIs.
  • Proven, practical experience using JMeter and/or Gatling (at least one required).
  • Direct experience testing APIs within ecosystems that include Salesforce, MuleSoft, and Oracle.
  • Demonstrated ability to design full performance strategies beyond basic load testing.
  • Strong analytical skills with experience converting test data into actionable insights.
  • Excellent written and verbal communication skills, including presenting technical results to non-technical and executive audiences.
  • Ability to take independent ownership, operate with ambiguity, and define test approaches proactively.
  • Experience collaborating across distributed, integrated application environments.

Nice to Have

  • Experience leveraging Playwright and TypeScript to support automation efforts.
  • Familiarity with Cucumber for behavior-driven testing and documentation.
  • Prior experience summarizing technical work into concise executive reports.

Additional Information

  • Strong preference for Colombia-based candidates
  • Preference for in-office presence most days, with flexibility when communicated in advance.
About company
Resilient Co

We combine technology and empathy to help startups and scaleups hire IT, UX, Product & Sales roles – faster.

We’re your strategic partner for team growth. We identify and attract professionals who truly fit your culture, values, and business goals. We leverage AI and data to improve human precision, speed, and quality throughout the hiring process. We evaluate candidates’ capacity to learn, adapt, and perform in evolving contexts, not only prior experience. From hunting to onboarding we support candidates and the TA team across the entire talent lifecycle.

We connect you with the tech and sales talent you need. We manage the full hiring process — from role definition to offer — focusing on technical fit, cultural alignment, and long-term retention with an active 120,000+ candidate pool on ATS. We provide highly qualified professionals who join your team as an extension of it, adapting quickly to your processes, culture, and goals, without increasing headcount or payroll overhead. We help early-stage startups set up their TA and People teams, and we partner with in-house TA teams to shape and optimize internal processes to adapt changing, evolving contexts.

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Job Details
Department Engineering
Category qa_testing
Posted 2 months ago