Senior Performance QA Engineer

ALLEGIS GROUP SINGAPORE PRIVATE LIMITED; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Allegis Group Singapore Pte Ltd is seeking a Senior Performance QA Engineer to join a leading global financial technology firm. You will focus on the stability, scalability, and performance of low-latency trading and data platforms, working on real-time systems in an agile environment.

You will conduct deep performance testing, identify bottlenecks, and collaborate with architects and engineers to drive performance-driven design, while promoting best practices and delivering measurable

Qualifications

• 10+ years of experience in performance engineering for low-latency, real-time systems.
• Hands-on Java coding experience.
• Experience with performance testing tools (JMeter, Gatling, Locust, k6).
• Profiling/monitoring with Grafana, Prometheus, Splunk, New Relic, AppDynamics.
• DevOps practices and tooling (CI/CD, Docker, pipelines, scripting).
• Experience with Kafka or similar event-streaming platforms.
• Cloud and containerized environments (Cloud, Kubernetes).
• Excellent communication, analytical and problem-solving skills.

Responsibilities

• Conduct deep performance testing and analysis on low-latency, real-time systems.
• Identify, diagnose, and resolve performance bottlenecks across the technology stack.
• Explore, evaluate, and recommend performance testing tools, frameworks, and methodologies.
• Partner with architecture and engineering teams to advise on performance-optimized system design.
• Perform system-level analysis covering throughput, latency, concurrency, scalability, and failover.
• Review existing architecture and drive performance-focused improvements.
• Communicate findings and insights to technical stakeholders, business teams, and leadership.
• Collaborate with developers to validate fixes and re-test performance metrics.
• Promote and contribute to a performance-driven engineering mindset across teams.
• Provide structured, insightful feedback on issues, risks, and improvement opportunities.

Skills

Low-latency systems

10+ years performance engineering

Java coding

Distributed systems design

Performance engineering fundamentals

Problem-solving & communication

Tools

JMeter

Gatling

Locust

k6

Grafana

Prometheus

Splunk

New Relic

AppDynamics

Kafka

Docker

Kubernetes

Job description

Summary

About the Role

We are looking for a Senior Performance QA Engineer to join a leading global firm in the financial technology space. This position focuses on ensuring the stability, scalability, and performance of complex, low‑latency trading and data platforms. You will work on high‑performance, real‑time systems in an agile environment, conducting deep performance analysis, identifying bottlenecks, and driving performance‑optimized design. In this role, you will contribute to the enhancement of performance testing frameworks, collaborate closely with engineering and architecture teams, and promote best practices throughout the software development lifecycle.

Key Responsibilities

• Conduct deep performance testing and analysis on low‑latency, real‑time systems
• Identify, diagnose, and resolve performance bottlenecks across the technology stack
• Explore, evaluate, and recommend performance testing tools, frameworks, and methodologies
• Partner with architecture and engineering teams to advise on performance‑optimized system design
• Perform system‑level analysis covering throughput, latency, concurrency, scalability, and failover
• Review existing architecture and drive performance‑focused improvements
• Communicate findings and insights to technical stakeholders, business teams, and leadership
• Collaborate with developers to validate fixes and re‑test performance metrics
• Promote and contribute to a performance‑driven engineering mindset across teams
• Provide structured, insightful feedback on issues, risks, and improvement opportunities

Must Have Skills

• Proven experience working with low‑latency, high‑throughput, high‑availability, real‑time, fault‑tolerant systems
• 10+ years of relevant experience in performance engineering
• Hands‑on Java coding experience
• Strong understanding of performance engineering fundamentals and system design for distributed systems
• Expertise with performance testing tools (e.g., JMeter, Gatling, Locust, k6)
• Proficiency with profiling/monitoring tools (Grafana, Prometheus, Splunk, New Relic, AppDynamics)
• Experience with DevOps practices and tooling (CI/CD, Docker, pipelines, scripting)
• Experience with Kafka or similar event‑streaming platforms
• Comfortable working with cloud and containerized environments (e.g., Cloud, Kubernetes)
• Excellent communication, analytical, and problem‑solving skills

Nice to haves

• Experience working in Capital Markets or trading systems
• Familiarity with FIX protocol

EA Registration No.: Yap Jia Yi, R25157934

Allegis Group Singapore Pte Ltd, Company Reg No. 200909448N, EA License No. 10C4544