Staff Software Development Engineer in Test - Stress and Performance (Belfast, UK)


Belfast, GB
  • Job Type: Full-Time
  • Function: Engineering QA
  • Post Date: 04/05/2021
  • Website:
  • Company Address: 700 E El Camino Real Suite 130, Mountain View, CA, 94041

About Lacework

Lacework delivers threat/anomaly detection and compliance across multicloud environments, workloads, containers and K8s.

Job Description



Here at Lacework, we are looking for a Software Development Engineer in Test who is excited about building an industry leading, next generation Cloud Security System. You will be part of the team that architects, designs, and implements highly scalable distributed systems that provide availability, scalability and latency guarantees. This is a unique and rare opportunity to get in on the ground floor and help shape our technologies, products and business.

We are looking for a Staff Software Development Engineer in Test - Stress and Performance who can work in a highly collaborative environment, and design/develop/execute Performance testing for highly scalable backend systems.

The Role:

  • Develop Performance and Scale Testing Strategy for our cloud-resident big data and analytics backend application
  • Lead the development of in-house-built Performance, Scale, and Stress tools.
  • Analyze performance capacity, tune for scale and growth, and create predictable scaling models.
  • Build dashboards for monitoring the health of Production environments
  • Debug Performance and Scale issues if occurring in Production
  • Work with the product team and other development teams to understand how new features should be Performance and Scale tested
  • Configure Performance and Scale tests to execute reliably and efficiently in CI/CD environments


  • 7 or more years of experience in Performance testing, debugging, profiling, and tuning.
  • Experience in building custom load generators.
  • Participate in architectural discussions, and own follow-up activities
  • Be able to create Presentations and other Documentation to communicate results, concerns, or recommendations
  • Able to create a plan, communicate progress, and track to completion
  • Experience developing Performance test strategies for applications with data backends
  • Hands-on experience in using and developing tools (e.g. Jmeter) to automate testing of components of microservices-based data processing cloud applications
  • 5+ years of experience with scripting (e.g. Python) and compiled languages (e.g. Java)
  • Experience with Linux environments
  • Experience with applications or platforms deployed in public cloud environments (e.g., AWS, GCP, Azure)
  • Experience with automation at the database level
  • Experience with Continuous Integration systems is a plus (e.g., Jenkins,  Git, Shippable, Dockerhub)
  • Bachelor’s degree or higher in Computer Science, or equivalent


We are a small and dynamic team – join us and be part of the three fastest growing enterprise software markets: cloud, security, and machine learning.


Lacework supports Green Card and H-1B sponsorship. We also have an office in Vancouver and sponsor Canadian work permits/permanent residence.


Lacework is an Equal Opportunity Employer. It is the policy of Lacework to provide equal employment opportunity to all persons, regardless of age, race, religion, color, national origin, sex, political affiliations, marital status, non-disqualifying physical or mental disability, age, sexual orientation, membership or non-membership in an employee organization, or on the basis of personal favoritism or other non-merit factors, except where otherwise provided by law.


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Disclaimer: Local Candidates Only
This company does NOT accept candidates from outside recruiting firms. Agency contacts are not welcome.