Jobs in the United States

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Added 1 min ago
IG
AI Software Engineer
Insight Global
Remote, United States
- From $54 USD / hour
Infrastructure engineering experience, including:
Added 2 mins ago
Sr Project Controls Manager
MasTec Utility Services
Charlotte, NC
MasTec Utility Services delivers critical infrastructure construction and engineering services for power delivery, gas, and water customers, specializing in overhead and underground…
Added 3 mins ago
R
Growth Product Manager, Cross-Sell
Rippling
San Francisco, CA · New York, NY
- $140,000 to $175,000 USD / year
…As our Growth Product Manager, you’ll be responsible for the infrastructure behind every cross-sell channel - in-product ads, email, and in-product landing pages - including our Campaign…
Added 4 mins ago
Cross-functional Engineering Associate - OCU - Technical - 1st Shift
Cummins Talent Acquisition
Columbus, IN
…and results in, data that can be trusted and delivered to the engineer or…
Added 5 mins ago
Senior Software Engineer, Core Infrastructure
Oracle
Nashville, TN
Hands-on experience developing multi-threaded embedded Linux application/infrastructure.
Added 5 mins ago
Systems Engineer III
Barnett Engineering & Signaling Laboratories
Colorado Springs, CO
The System Engineer III is a developing professional with working knowledge of systems engineering principles, processes, and tools who supports technical planning, requirements analysis,…
Added 5 mins ago
System Protection & Integration Engineer
Avista 1
Spokane, WA
Join Avista as a Protection & Integration Engineer and help strengthen the systems that keep our electric grid safe, reliable, and connected. You’ll design protection and substation…
Added 6 mins ago
Forward Deployed Full-Stack Engineer (Patuxent River, MD / Mid-level)
Spear AI
Manassas, VA
We’re seeking a skilled Forward Deployed Full-Stack Engineer to build the next-generation data management and artificial intelligence platform for maritime domain awareness.
Added 7 mins ago
Cyber Security Identity Engineer
FirstEnergy
Akron, OH
We’re looking for a technically skilled Cyber Security Systems Administrator to support, administer, engineer, and improve FirstEnergy’s Identity and Access Management (IAM) technologies.…
Added 7 mins ago
Office Engineer
Arcadis
New York, NY · Paramus, NJ · NY
Arcadis is seeking a motivated Office Engineer to support the Gateway Hudson Tunnel Project (HTP), one of the most significant infrastructure initiatives in the United States. Serving as…
Added 7 mins ago
Backend Software Engineer
Raydar
San Francisco, CA
…covers backend engineering across a shared data layer, cloud infrastructure and production operations, with a focus on shipping quickly and resolving live…
Added 8 mins ago
Senior Software and Integrations Engineer
Propeller Industries
Remote, United States
PropellerOS, our financial operating platform, combines human judgment, precision accounting, data infrastructure, and AI-enabled insight to transform finance from a back-office function…
Added 8 mins ago
EC
Information Systems Security Engineer
Edgesource Corporation
Chantilly, VA
- $190,000 to $210,000 USD / year
…our nation as a prime contractor with the DHS Cybersecurity & Infrastructure Security Agency (CISA), a career at Edgesource is an opportunity to do meaningful, interesting, and impactful…
Added 9 mins ago
Device Engineer
onsemi
East Syracuse, NY · Syracuse, NY
onsemi is seeking a talented and highly motivated Device Engineer for our semiconductor fabrication facility in Syracuse, NY.
Added 9 mins ago
A
Senior Technical Consultant - CTEM / Vulnerability Management Engineer
AHEAD
Remote, United States
- $170,000 to $180,000 USD / year
AHEAD builds platforms for digital business. By weaving together advances in cloud infrastructure, automation and analytics, and software delivery, we help enterprises deliver on the…
Added 11 mins ago
Entry Level Geotechnical Engineer
GFT.
Pittsburgh, PA
GFT is seeking an Entry Level Geotechnical Engineer to join our Geotechnical, Dams & Hydraulics team in our Pittsburgh, PA office.
Added 11 mins ago
Entry Level Geotechnical Engineer
GFT.
Columbus, OH
GFT is seeking an Entry Level Geotechnical Engineer to join our Geotechnical, Dams & Hydraulics team in our Columbus, OH office.
Added 11 mins ago
Entry Level Geotechnical Engineer
GFT.
Audubon, PA
GFT is seeking an Entry Level Geotechnical Engineer to join our Geotechnical, Dams & Hydraulics team in our Audubon, PA office.
Added 12 mins ago
Senior Software Engineer
Renesas Electronics
Austin, TX
The Software Team is seeking a Senior Software Engineer to help bridge the gap between complex hardware and exceptional customer experience. In this role, you will collaborate across…
Added 12 mins ago
MI
Construction Manager
MasTec Inc
Green River, WY
- $185,000 to $205,000 USD / year
MasTec Industrial is part of the MasTec Clean Energy & Infrastructure (CE&I) business segment. The CE&I segment generates over $4.5 billion in annual revenue, providing construction…
Added 14 mins ago
TL
Office Engineer - Beacon NY
The LiRo Group
Beacon, NY
- $30 to $38 USD / hour
…firm is ranked among ENR’s top A/E firms and is part of Global Infrastructure Solutions Inc.…
Added 14 mins ago
Automation and Platform Hosting Systems Engineer
BAE Systems
Herndon, VA
We are seeking an experienced System Engineer to lead the automation, virtualization, and management of our enterprise hosting environment. The role involves maintaining and supporting…
Added 14 mins ago
C4PS-2510 Cybersecurity Engineer - Tactical Communications Systems - DEC 2026
C4 Planning Solutions, LLC
Camp Pendleton North, CA
Position Title: Cybersecurity Engineer - Tactical Communications Systems
Added 15 mins ago
Director, AI and Analytics
UFCU Main
Austin, TX
Added 15 mins ago
Lead Software Engineer - Java or Python, Agentic AI
JPMC page
Jersey City, NJ
As a Lead Software Engineer at JPMorgan Chase within the Commercial & Investment Bank Digital Channel's team, you will build autonomous agent capabilities that can plan, execute, validate,…

Randstad USA

Performance Engineer - Expert

Remote, United States

$68.87 to $71.87 USD / hour · Contract

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Job details

Pay: $68.87 to $71.87 USD / hour
Job type: Contract
Apply by: Dec 4, 2026
Experience: 5+ years of experience in performance engineering, performance testing, or software engineering.
Posting language: English
Posted: Nov 3, 2026

Original job description

job summary:

We are seeking a Performance Engineer to improve the speed, scalability, reliability, and user experience of our digital platforms. You will combine performance testing, frontend auditing, observability, and hands-on engineering to identify bottlenecks and drive measurable improvements across applications and infrastructure.

You'll partner with application, UX, API, platform, and DevOps teams to build performance into delivery workflows, from local development through production monitoring.

location: Telecommute job type: Contract salary: $68.87 - 71.87 per hour work hours: 8am to 5pm education: Bachelors

responsibilities:

Plan and execute performance testing for web applications, APIs, and critical user journeys using tools such as JMeter and LoadRunner.

Design workload models and test scenarios for baseline, load, stress, endurance, and capacity testing.
Analyze results, traces, logs, and network waterfalls to identify frontend, backend, infrastructure, and dependency bottlenecks.
Conduct frontend performance audits using tools such as Lighthouse, WebPageTest, Chrome DevTools, and real-user monitoring platforms.
Evaluate Core Web Vitals and related metrics, including LCP, INP, CLS, FCP, and TTFB, and recommend actionable improvements.
Build and maintain performance dashboards, service-level indicators, and actionable alerts using observability platforms.
Configure and improve synthetic monitoring and real-user monitoring for key pages and user journeys.
Assess CDN and edge performance, including Akamai configuration, caching policies, cache headers, compression, and content delivery behavior.
Validate cache behavior across public and authenticated experiences, including HIT, MISS, STALE, and bypass scenarios.
Develop scripts, utilities, and automation for repeatable performance tests, audits, reporting, and regression detection.
Integrate performance checks into CI/CD pipelines and help establish performance budgets and release criteria.
Work hands-on with application teams to implement and verify performance improvements, including frontend and API changes where appropriate.
Review architecture and design proposals for scalability, resilience, caching, and performance risks.
Collaborate with developers, UX/UI designers, API teams, and platform/DevOps teams to resolve issues and improve delivery practices.
Conduct code and test reviews, document findings, and mentor engineers on performance engineering practices.
Contribute to Agile planning, estimation, and continuous improvement of performance tooling and processes.

qualifications:

Required Qualifications

Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
5+ years of experience in performance engineering, performance testing, or software engineering.
Strong experience designing, running, and analyzing load and performance tests with JMeter, LoadRunner, or comparable tools.
Experience with frontend performance testing and browser diagnostics, including Chrome DevTools and network analysis.
Hands-on experience building performance dashboards, monitoring systems, and alerting.
Working knowledge of web application architecture, HTTP, APIs, browsers, and distributed systems.
Experience with CDN and caching concepts, including cache-control headers, cache keys, invalidation, and edge delivery.
Experience automating tests and analysis using scripting or programming languages such as JavaScript/TypeScript, Java, or Python.
Understanding of Core Web Vitals and performance optimization techniques for modern web applications.
Experience investigating performance issues across application, API, database, network, and infrastructure layers.
Strong analytical, debugging, and problem-solving skills.
Experience with cross-browser and device testing.
Clear communication skills and the ability to turn technical findings into prioritized recommendations.

Experience with Akamai configuration, CDN analytics, caching rules, or edge delivery.

Familiarity with observability platforms such as Splunk, Dynatrace, Datadog, New Relic, or Grafana.
Experience with Lighthouse CI, WebPageTest, SpeedCurve, mPulse, or similar frontend performance tools.
Experience with synthetic monitoring and real-user monitoring (RUM).
Familiarity with React, Next.js, server-side rendering, and edge-rendering strategies.
Experience with cloud platforms, containers, and Docker.
Experience integrating performance tests into CI/CD pipelines.
Familiarity with A/B testing and measuring performance impact.
Knowledge of accessibility standards, including WCAG 2.2 AA.
Experience with REST or GraphQL APIs and headless CMS-driven applications.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com.

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

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