Horizon Labs – Software Engineer (AI Systems) Intern

Job Description

We are seeking a Software Engineer (AI Systems) Intern to build the software and infrastructure that powers AI-enabled workflows and product features. You will work on systems that connect models, tools, services, and product requirements into reliable applications.

Preferred Qualifications

• Currently pursuing or recently completed a relevant degree, ideally from leading universities such as NUS, NTU, or SMU, while still considering strong candidates from other institutions.
• Strong academic performance, ideally distinction or above, alongside evidence of initiative, ownership, and high-quality execution.
• Comfortable using AI tools beyond simple chat workflows to accelerate analysis, drafting, research, and execution.
• High attention to detail and discipline in checking facts, requirements, and deliverables before sharing work.
• Able to thrive in a fast-moving startup environment with ambiguity, rapid iteration, and cross-functional collaboration.
• Strong software engineering fundamentals with interest in systems design, integrations, backend logic, and production reliability.
• Interest in LLM systems, orchestration, APIs, and practical AI infrastructure is a plus.

Key Responsibilities

• Build and maintain application logic, integrations, and infrastructure for AI-enabled systems.
• Work on APIs, orchestration layers, and tooling that connect models with product workflows.
• Collaborate with product and operations stakeholders to turn requirements into reliable system behavior.
• Use AI-assisted engineering tools responsibly to improve development speed, debugging, and documentation.
• Improve observability, reliability, and maintainability across AI-related technical workflows.