Senior Backend/Fullstack Engineer at Joinkyber

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Backend/Fullstack Engineer (Remote)

Salary

Not Disclosed

Company Description

Joinkyber.com is a pre-seed aviation tech startup (EF Fall 2025) building the intelligent AI orchestration layer for airport ground operations to eliminate the $15B lost annually to controllable ground delays.

Job Description

You will build the intelligent decision-making engine that optimizes airport turnarounds in real-time. Joinkyber.com is replacing manual spreadsheets and radios with AI-driven orchestration of tasks, staff, and equipment. You'll own the full-stack system—from ingestion of messy signals to deterministic state machines—ensuring reliable, high-stakes infrastructure for global aviation hubs.

Location

Remote

Why this role is remarkable

• Build the decision engine behind live airport operations, transitioning from standard CRUD apps to high-consequence systems that prevent worldwide flight delays.
• Join a pre-seed team led by an ex-F1/Lufthansa operations expert and a space-tech CTO with pilot programs already demonstrated to reduce labor waste by 60%.
• Experience massive technical ownership with a top-tier compensation package and the systems complexity typically found at much later-stage companies.

What You Will Do

• Design real-time data processing pipelines that reconcile messy operational signals into a single, canonical truth for airport ground handlers and airlines.
• Build conflict detection systems and state machines that manage complex dependencies across staff, equipment, and gate assignments under tight latency constraints.
• Own the infrastructure-as-code and DevOps layer, ensuring 100% reliability for production systems where downtime directly translates to missed flights.

The ideal candidate

• Has 3+ years of experience building production-grade backend systems at high-growth startups, specifically demonstrating deep proficiency with TypeScript and Python.
• Demonstrates expertise in event-driven architectures, scheduling algorithms, or workflow engines with a focus on deterministic compute and system correctness.
• Possesses a strong builder mentality and DevOps background in IaC, CI/CD, and observability for mission-critical, cloud-native environments.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.