Senior Platform Engineer Performance

As Weave continues to grow so do the performance and scalability challenges of supporting a rapidly expanding distributed platform. With hundreds of microservices powering communication and payments for thousands of healthcare practices ensuring our platform remains fast reliable and scalable is more important than ever.

Were looking for an experienced Platform Engineer specializing in Performance Engineering to help define how Weave approaches performance at scale.

This isnt a traditional performance testing role where youll spend your day executing load tests. Instead youll combine deep performance engineering expertise with a platform engineering mindset to build the tools frameworks and developer experiences that enable every engineering team to confidently understand validate and improve the performance of the systems they build.

Youll partner closely with product and infrastructure teams to solve some of Weaves most complex scalability challenges while creating a self-service performance engineering platform that becomes a foundational part of our software development lifecycle.

If you are a software engineer with a passion for performance a talent for building developer-centric tools and a drive to solve complex systems-level challenges we want to hear from you.

• This position will be available fully remote in the US

• Reports to: Engineering Manager

What You Will Own

• Build Weaves Performance Engineering Platform

  • Design and build a self-service platform that enables engineering teams to easily execute analyze and understand performance testing for their services.

  • Develop reusable APIs frameworks libraries and tooling that abstract the complexity of performance engineering and integrate seamlessly into the developer workflow.

  • Integrate performance engineering capabilities into CI/CD pipelines to make performance validation a natural part of software delivery.

• Solve Complex Performance Challenges

  • Partner with engineering teams to identify reproduce and solve difficult performance and scalability problems across distributed systems.

  • Define performance strategies for critical services including load stress spike endurance and scalability testing.

  • Help engineering teams understand system bottlenecks capacity limits latency tradeoffs and scaling behavior before issues reach production.

• Improve Engineering Productivity

  • Build developer-centric tooling that makes performance testing accessible without requiring every engineer to become a performance expert.

  • Create reference implementations documentation and best practices that establish a consistent approach to performance engineering across Weave.

  • Coach engineering teams on performance methodologies and help foster a culture where performance is considered throughout the development lifecycle.

• Drive Reliability at Scale

  • Partner with infrastructure and product teams to define and validate Service Level Objectives (SLOs) for critical systems.

  • Build tooling that proactively detects performance regressions and helps engineering teams prevent customer-impacting incidents before they occur.

  • Help evolve Weaves performance engineering strategy as our platform and customer base continue to grow.

What You Will Need to Accomplish the Job

• Experience: 5 years (for Senior level) of professional experience in roles such as Performance Engineer Software Engineer in Test SRE DevOps or Software Engineer with a deep focus on the performance scalability and reliability of large-scale distributed systems.

• Programming Proficiency: Strong software development skills and significant hands-on experience building testing and maintaining complex applications or infrastructure using Go and/or Python. Proficiency in Go is highly desired to align with our primary backend language and to contribute effectively to our microservices ecosystem.

• Kubernetes Expertise: Deep hands-on expertise with Kubernetes concepts architecture and workflows is required. This includes experience deploying and managing containerized applications as well as understanding the nuances of performance tuning within a Kubernetes environment.

• CI/CD Mastery: Proven ability to design implement and optimize complex CI/CD pipelines to integrate automated testing including performance testing. Experience with tools like GitLab CI GitHub Actions or similar is essential.

• Performance Testing Expertise: Expert-level understanding of performance testing methodologies including load stress spike endurance and scalability testing. Demonstrable experience designing and implementing test strategies for complex microservice architectures including identifying appropriate metrics and acceptance criteria.

• Systems Thinking Acumen: Exceptional analytical debugging and problem-solving skills with a proven ability to diagnose and solve complex cross-service performance issues in distributed systems. You dont just find bottlenecks; you understand the systemic reasons they occur and can articulate the broader architectural implications.

• Collaboration and Communication: Excellent communication skills (verbal and written) with the ability to articulate complex technical ideas clearly and effectively to diverse audiences including engineers product managers and leadership.

What Will Make Us Love You

• Modern Tooling Experience: Hands-on experience with modern script-as-code performance testing tools particularly k6 (preferred) or Locust. Experience building custom tooling libraries or frameworks around these tools to enhance developer experience is a significant plus. This demonstrates an alignment with our test-as-code and developer-enablement philosophy.

• Observability Expertise: Proficiency with modern observability stacks (e.g. Prometheus Grafana Datadog ELK) and extensive experience using metrics distributed traces and logs to correlate application performance with underlying system behavior during performance tests.

• Chaos Engineering Experience: Either direct involvement building or using chaos engineering tooling in a microservices environment.

• Go-Specific Performance Skills: Experience with Go-specific profiling and debugging tools (e.g. pprof). Familiarity with the xk6-g0 extension for writing k6 tests directly in Go would also be a plus as it represents a unique and powerful intersection of the exact skills required for this role: deep Go expertise combined with a modern approach to performance engineering.

• Internal Platform Development: A proven track record of building internal developer tools platforms or frameworks that have measurably improved engineering productivity velocity and software quality within an organization.

• Weave Tech Stack Familiarity: Direct experience testing Go-based microservices environments and systems utilizing Kafka NSQ Postgres and/or gRPC.

Employment with Weave is contingent upon the successful completion of a background check conducted in accordance with applicable laws.

At Weave we use Artificial Intelligence (AI) tools to help us work more efficiently and create a smoother candidate experience. AI may assist with things like writing job descriptions scheduling interviews or reviewing applications against job-related criteria. For additional information please review the External AI Policy Statement available on our Careers page.

Weave is an equal opportunity employer that is committed to fostering an inclusive workplace where all individuals are valued and supported. We welcome anyone who is hungry to learn problem-solve and progress regardless of race color ancestry religion sex national origin sexual orientation age citizenship marital status disability gender identity veteran status or other applicable legally protected you have a disability or special need that requires accommodation please let us know.

Beware of recruitment fraud. All official correspondence will occur through Weave branded email. We will never ask you to share bank account information cash a check from us or purchase software or equipment as part of your interview or hiring process.

Required Experience:

Senior IC