Junior Node/React Support Engineer – Live Deployments

Job Title

Junior Customer Support Engineer

Company Description

Heypesto.ai – Fast-growing AI startup

Job Description

Join Heypesto.ai as a Junior Customer Support Engineer to bridge the gap between technical development and customer success. You will handle ad hoc requests, implement feature iterations, and debug systems using Node.js and React. This high-impact role allows the core team to scale while you drive customer satisfaction through rapid technical execution.

Location

London, UK

Why this role is remarkable

• Work at the cutting edge of AI implementation by utilizing advanced tools like Cursor and Cloud Code to accelerate your development workflow.
• Enjoy a high degree of autonomy and ownership by managing direct customer relationships and seeing your code changes deployed to production immediately.
• Join a fast-paced startup environment where your contributions directly influence the product roadmap and free up core developers for strategic expansion.

What you will do

• Implement small-to-medium feature iterations and bug fixes within a Node.js and React ecosystem using Firebase backend systems.
• Manage real-time customer communication via Slack and WhatsApp to resolve technical queries and assist with complex onboarding deployments.
• Trace errors through logging platforms and maintain code quality through rigorous git workflows and independent debugging sessions.

The ideal candidate

• Possesses 2-3 years of software development experience or a recent Master’s degree with relevant technical industry background.
• Exhibits proficiency in reading and debugging Node.js and React code while effectively using AI-assisted coding tools for rapid implementation.
• Demonstrates a problem-solving mindset with the communication skills necessary to interact directly with customers during high-stakes deployment phases.

Required skills

Debugging, Git, Software Development, React, Customer Support, Node.js, Firebase

Required languages

English

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