We are seeking an experienced Senior UI / Full-Stack Sustaining Engineer with 7–8 years of hands-on experience in ReactJS and Node.js In this role, you will be the core technical escalation point responsible for investigating, debugging, and resolving complex, customer-reported frontend and middleware issues in production environments.
What you will do:
Customer Issue Triage & Root Cause Analysis: Investigate, reproduce, and resolve critical production defects and performance bottlenecks reported by enterprise customers across UI layers and Node.js backends.
Code Remediation & Hotfixing: Author clean, maintainable bug fixes, patches, and hotfixes with minimal turnaround time while ensuring zero regression.
Live Production Debugging: Utilize browser developer tools, network analyzers, APM tracing tools, and server-side log analytics to isolate issues in real time.
Cross-Functional Collaboration: Partner closely with core product engineering, QA, and Site Reliability Engineering (SRE) teams to drive issues to resolution.
Documentation & Prevention: Document Root Cause Analyses (RCAs), author technical troubleshooting runbooks, and provide feedback to core product teams to prevent recurring defects.
Shift Operations: Actively participate in a 24/7 rotational shift model, ensuring SLA compliance for high-priority incidents (Sev-1 / Sev-2).
What we are looking for:
Frontend Mastery: 6+ years of strong experience in ReactJS, JavaScript (ES6+), TypeScript, HTML5, CSS3, and state management libraries (Redux, Zustand, Context API).
Backend / Middleware: 3+ years of experience with Node.js and Express/NestJS, including RESTful API integration, asynchronous programming, and middleware architectures.
Advanced Debugging: Deep proficiency in Chrome DevTools (Performance, Memory Profiler, Network), React DevTools, and error-tracking tools (Sentry, LogRocket, or Datadog).
Observability & Logging: Hands-on experience querying application logs and metrics using tools such as Splunk, Kibana, Grafana, or CloudWatch.
Version Control & CI/CD: Strong knowledge of Git workflows, branching strategies, and CI/CD pipelines (GitHub Actions, Jenkins, or GitLab CI).
Qualifications & Shift Requirements:
Experience: 7 to 8 years in frontend/full-stack development or sustaining engineering/L3 support.
Education: Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related engineering field.
Shift Readiness: Mandatory flexibility to work in a rotating 24/7 shift schedule (including day, swing, night, and weekend shifts).
Communication: Excellent written and verbal English communication skills, with experience writing crisp technical RCAs and communicating with global customer-facing
Our Values
If you want to know the heart of a company, take a look at their values. Ours unite us. They are what drive our success – and the success of our customers. Does your heart beat like ours? Find out here: Core Values
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.
Blue Yonder is the AI company for supply chain. As the world leader in end-to-end digital supply chain transformation, Blue Yonder offers a unified, AI-driven platform and multi-tier network that empowers businesses to operate sustainably, scale profitably, and delight their customers—all at machine speed. A pioneer in applying AI solutions to the most complicated supply chain challenges, Blue Yonder’s modern innovations and unmatched industry expertise help more than 3,000 retailers, manufacturers, and logistics service providers confidently navigate supply chain complexity and disruption.
Blue Yonder is proud to be an Equal Opportunity Employer. We want you to bring your authentic self to work every day. We know that the best businesses are diverse and inclusive. Our unique talents make for great ideas, empathetic workplaces and drive results. We welcome all job applicants, so apply today.
Please Be Advised: Any communications from a Blue Yonder representative related to an open position at Blue Yonder will come from an @blueyonder.com email address. We will not hire through text message, social media, or email alone, and any interviews will be conducted in-person or through a secure video call. We will not ask you for sensitive information nor will we ask you to pay anything during the hiring process. If you see suspicious activity or believe that you have been the victim of a job posting scam, you should report it to your local law enforcement authorities. To learn more about other potential job scams click here.
