Engineer, Software Sr

Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team. Position:
Sr. Software Engineer
- Performance Test Engineer - 5081

Duration: 6 Months

Location: Reston, VA - (Hybrid
- Willing to go to office when/if needed)

In-person interview at Reston, VA

Leads and performs performance testing, performance engineering, and scalability analysis for enterprise applications, cloud-native platforms, data warehouse solutions, and data lake ecosystems. Defines performance test strategies, designs realistic workload models, develops and executes performance tests using tools such as Neo Load, and analyzes system behavior across application, database, infrastructure, and cloud layers. Collaborates with product, development, architecture, infrastructure, and operations teams to identify performance risks, establish baselines, validate non-functional requirements, and provide actionable recommendations to improve throughput, reliability, resiliency, and user experience.

• 25% Develop and execute end-to-end performance test strategies for enterprise applications, AWS-native applications, APIs, microservices, data warehouse platforms, and data lake pipelines. Define performance objectives, workload models, test data needs, test schedules, and entry and exit criteria. Design and execute load, stress, endurance, scalability, resiliency, and capacity tests using Neo Load and other approved enterprise performance testing tools. Automate performance test execution within CI/CD pipelines to support repeatable validation, early performance feedback, and release readiness.
• 25% Analyze performance and resiliency test results across application, database, middleware, network, cloud, and infrastructure layers. Monitor and evaluate key metrics such as response time, throughput, transaction volume, CPU, memory, I/O, queue depth, latency, error rates, auto-scaling behavior, failover behavior, recovery time, system recovery, and service degradation patterns. Identify bottlenecks, resiliency gaps, and performance risks, compile findings, and communicate clear recommendations to technology, product, and leadership stakeholders.
• 25% Support performance engineering for cloud modernization, data platform migrations, and high-volume processing solutions. Validate performance, scalability, and resiliency of AWS services, cloud-native architectures, containerized workloads, data ingestion jobs, ETL/ELT pipelines, PostgreSQL and other database platforms, data warehouse workloads, and data lake integrations. Partner with architecture and engineering teams to recommend tuning opportunities, capacity improvements, resiliency improvements, automation enhancements, and long-term performance solutions.
• 25% Provide technical leadership for performance testing engagements supporting critical, high-visibility applications and platforms. Lead defect triage and root-cause analysis for performance issues, support production incident analysis where performance is a contributing factor, and help establish performance baselines, dashboards, and reporting standards. Mentor team members on performance testing best practices, Neo Load scripting and execution, cloud observability, test automation integration, CI/CD performance test automation, and continuous performance testing within delivery pipelines.

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Bachelor's Degree

Information Technology or Computer Science

5 years experience in performance testing, resiliency testing, performance engineering, or quality engineering for enterprise applications, including hands‑on experience with workload modeling, performance test design, resiliency test scenarios, failover validation, test…