Express.js Performance Engineer (Temp) — Flexible

Energy Innovation Corp; San Jose (CA); Hybrid; USD 88,000 - 133,000; Full time

Job summary

DataFlow Systems in San Jose, CA seeks a junior Performance Engineer to own deliverables and grow within a high-trust team. The role focuses on Express.js decision-making and building tooling to speed up the platform.

Your work will include shaving milliseconds on the hot path, coordinating delegation configs across environments, and contributing to Kubernetes-based operations in a temporary setting. This contract offers mentorship, benefits, and the chance to grow without relocating from CA.

Qualifications

• Junior professional ready to own deliverables
• Experience with Express.js in production environments
• Familiar with Kubernetes in temporary settings
• Willingness to commute to San Jose, CA or work flexibly

Responsibilities

• Reduce latency on the critical path to improve user experience
• Wrangle Delegation config across environments to mirror production
• Build the Express.js tooling that speeds up San Jose engineers
• Reduce cold-start times for Delegation across regions
• Take features from whiteboard to San Jose, CA production

Skills

Express.js

Kubernetes

Deliverables ownership

Communication skills

Tools

Express tooling

Job description

DataFlow Systems in San Jose, CA seeks a junior Performance Engineer to own deliverables and grow within a high-trust team. The role focuses on Express.js decision-making and building tooling to speed up the platform.

Your work will include shaving milliseconds on the hot path, coordinating delegation configs across environments, and contributing to Kubernetes-based operations in a temporary setting. This contract offers mentorship, benefits, and the chance to grow without relocating from CA.