Top 4 Junior system engineer Jobs in Fullerton, Ca

Junior AI Systems Engineer
Buildable AI —Lake Forest, CA
- $73,436.99 - $88,440.25 a year
- Part-time
- Hybrid work
- Databases
- JavaScript
- Entry level
Quick Apply
Principal Systems Engineer Requirements Lead (ONSITE)
Collins Aerospace —Fullerton, CA
- $118,300 - $224,900 a year
- Full-time
- 5 years
- Mentoring
- Scripting
- Paid holidays
- Loan repayment program

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Junior Systems Administrator
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Junior AI Systems Engineer

Buildable AI
Lake Forest, CA

Quick Apply

Job Details

Part-time | Full-time | Contract
$73,436.99 - $88,440.25 a year

Qualifications

AI models
System troubleshooting
Databases
JavaScript
Systems engineering
Developing and maintaining backend systems
TypeScript

Full Job Description

Company: Buildable Ai (buildable.global) Role: Junior AI Systems Engineer

The Reality Check (Read Before Applying)

Do not let the "Junior" title fool you. This is an execution-heavy role for someone who is already highly fluent in AI-assisted development. Do not apply if you are an absolute beginner to AI systems. We expect you to already know how to use AI tools to write, debug, and ship code at a high velocity. We are looking for an emerging expert who understands the fundamentals of how these models work and is ready to refine complex systems under the guidance of senior leadership.

About the Role

As a Junior AI Systems Engineer at Buildable Ai, you will be the boots on the ground for our core technology refinement. Working directly under our Senior Engineers, you will be in the trenches making sure our AI systems are talking to each other effectively. You will be responsible for implementing integrations, testing system outputs, and using AI tools to write the connective tissue that powers our platform.

Core Responsibilities

Systems Integration: Write the reliable, scalable code that links our internal AI models with external tools, APIs, and databases.
AI-Assisted Execution: Use the latest AI coding assistants to write clean code rapidly, taking raw architectural concepts and turning them into functional features for buildable.global.
Testing & Refinement: Rigorously test AI workflows, identify hallucinations or communication breakdowns between systems, and implement fixes to improve accuracy.
Continuous Learning: Stay hyper-current on the bleeding edge of AI tools and models, bringing new efficiency strategies to the engineering team.

Mandatory Qualifications

Demonstrable AI Experience: A strong portfolio of personal projects, open-source contributions, or past roles where you heavily integrated AI/LLM APIs.
Solid Programming Foundation: Strong skills in backend languages (Python, JavaScript/TypeScript) and a deep comfort level with debugging complex, multi-system issues.
Fluency in AI Tools: You must already use AI tools daily to accelerate your coding process and troubleshoot errors.
Analytical Problem Solving: An obsessive curiosity about how AI systems communicate and a persistent drive to refine those workflows.

Pay: $73,436.99 - $88,440.25 per year

Work Location: Hybrid remote in Lake Forest, CA 92630

Quick Apply

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junior system engineer jobs in fullerton, ca

Junior AI Systems Engineer

Principal Systems Engineer Requirements Lead (ONSITE)

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