Onsite- Front-end Performance engineer- (React JavaScript) Seattle, TX, IL @ Talent Groups - Chicago, IL

Job Overview

13 days ago

Onsite- Front-end Performance engineer- (React JavaScript) Seattle, TX, IL

Talent Groups - Chicago, IL

Performance engineering- JavaScript/React

Seattle, WA, Plano TX or Chicago, IL.

Contract only W2.

Are you ready to be part of high performing team that takes pride in the thriving high-tech world? Do you want to impact an organization that prides itself on culture and customer first mentality? This might just be the role for you!

Our client will be tasking this individual with ensuring their eCommerce B2B and B2C sites are consistently delivering industry leading performance. You would be focused on improving the performance and stability of client’s web properties and provide tools, checklists, and automation required for empowering developers, QA, SRE, engineering, and architecture teams to track and optimize desktop and mobile performance incessantly.


· Analyzes and fine-tunes the front end/application so as to derive the best performance.

· Works on front end frameworks and technologies like React, JavaScript, and CSS to extract the best of the performance and help build a stable and highly responsive eCommerce application.

· Works on Android and IOS apps to ensure quality of new products and features through performance engineering.

· Works on JSP/Java code and backend Commerce application as needed and ensures quality of new products and features through performance engineering.

· Collaborates proactively with multiple distributed value streams, suppliers, service providers, and ensures product artifacts (stories, epics, features, acceptance criteria, etc.) that are pertinent for performance are delivered.

· Shifts Left Performance analysis in DevOps cycle --- > Deliver Quality with velocity.

· Owns the performance goals of all the costco.com web components, Android mobile app and iOS app and all other channels of Costco’s web properties.

· Collaborates proactively with multiple distributed value streams, suppliers, service providers and ensures product artifacts (stories, epics, features, acceptance criteria, etc.) that are pertinent for platform performance are completed as planned.

· Builds roadmaps and lead prioritization; balance the right amount of structure and planning for a fast paced engineering team with many stakeholders.

· Partners closely with Business, Dev, SRE teams to identify the environment requirements for the performance goals of the projects and maintain an efficient CI/CD pipeline.

· Helps engineering teams establish and achieve software performance goals.

· Establishes consistency of performance measurement, observation, and tooling approaches.

· Develops, employs, and increases adoption of automated internal and external tools that help improve quality, improve performance, increase deploy frequency and enhance the overall platform experience.

· Contributes code to streamline performance and remove bottlenecks.


· 5+ years of Development Lead or System Architect or Solution Architect in ecommerce solutions.

· 10+ years of professional Information Technology experience delivering large-scale system solutions applications in large scale eCommerce applications.

· Very strong frontend skills like REACT, JavaScript, CSS, JSP and Java.

· Strong understanding of browsers and application responsiveness for desktop as well as mobile (both Android and IOS).

· Ability to discern performance impact across the full stack, including web and mobile front end, caching layers, CDN and memory, file system, and relational databases.

· Passionate about optimizing performance bottlenecks.

· Excellent understanding of emerging web technologies to support the development of eCommerce website products.

· Experience in tackling problems of load, scale, and optimizations of large-scale deployments on high volume sites.

· Experience in finding the root cause of performance bottlenecks with profiling tools.

· Optimizing performance bottlenecks with strong analytical, problem-solving & decision-making skills.

· Proven skills in leadership, collaboration, advocacy, governance, and consensus building.

· Proven ability to effectively mentor junior team members on design, website load modeling, programming, and testing techniques.


· Bachelor's degree in Engineering, Computer Science or similar technical discipline

· Experience with site reliability engineering (SRE)

· Experience with distributed system architecture

· Experience delivering Azure cloud technology solutions or hybrid cloud solutions

· Experience with on premise SRE Observability and Monitoring services

· Strong backend and Database skills

· Good understanding of integration patterns, concepts, and best practices

Job Type: Contract

Pay: $85.00 - $90.00 per hour


  • 401(k)
  • Health insurance


  • 8 hour shift
  • Monday to Friday

Work Location: One location

Speak with the employer
+91 847-474-3706

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