Staff/Senior Software Engineer, Machine Learning Platform (AI)

Location: Tokyo, Japan

Company

hirify.global is an AI-native Agentic AI as a Service company that develops intelligent software for business decision-making.

What you will do

• Architect, implement, and scale Spark batch and Flink streaming pipelines processing billions of records daily for ML training and evaluation.
• Design and operate job execution frameworks for model training, inference, and post-processing.
• Build internal API servers and developer tools for orchestrating ML jobs on Kubernetes with Argo Workflows, Helm, and Terraform.
• Design and monitor data infrastructure using ClickHouse and PostgreSQL.
• Improve platform availability and observability with Prometheus and Grafana.
• Collaborate with data scientists, product managers, and engineers; mentor junior engineers and promote LLM-based development tools.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field; a Master’s degree is preferred.
• 4+ years of hands-on experience in data systems, machine learning infrastructure, or platform engineering.
• Strong Python and/or Java skills with experience building large-scale production systems.
• Practical experience with Spark, Flink, Kubernetes, GKE, Terraform, and Helm.
• Experience with high-throughput data infrastructure such as ClickHouse or PostgreSQL.
• Deep understanding of production ML pipelines, distributed job execution, architectural ownership, and cross-functional platform leadership.

Nice to have

• Master’s degree in a relevant field.

Culture & Benefits

• Opportunity to shape infrastructure supporting hundreds of ML models and billions of daily data records.
• Use of LLM-based tools such as Claude Code, Codex, GitHub Copilot, and ChatGPT for development, documentation, and debugging.
• Focus on engineering standards, ownership, scalability, and developer experience.