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Salary
≈ $36k – $99k per year (Estimated)
Location
In office (Japan)
Seniority
Senior · 2+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 19, 2026.

Overview
Company
Impact
Profile match
Cogent Labs is a Japanese artificial intelligence company that develops practical AI services to raise productivity and ease labour shortages. It builds and serves machine learning models for business products and hires machine learning software engineers, solution architects, QA engineers and senior product and project managers. The company is headquartered in Minato, Tokyo, Japan.

Senior Platform Infrastructure Engineer

Cogent Labs is looking for an experienced and dynamic engineer to help build and enhance our Cloud and On-premises platforms which deliver our AI-powered products to customers.

This role is ideal for strong software engineers who have developed a passion for reliability, infrastructure, and operations as a way to improve customer satisfaction. You’ve probably built and run customer-facing applications, automated your way out of toil, and care deeply about both code quality and operational excellence. We’re not looking for traditional Ops or DevOps profiles without significant hands-on coding experience. If your strength is in building robust systems and you enjoy working at the intersection of software engineering and infrastructure, we’d love to talk.

Responsibilities

  • Effectively blend software engineering and operational expertise to ensure the reliability, scalability, and performance of our cloud and on-premises product platforms.
  • Troubleshoot and resolve complex issues across code, database, and infrastructure, ensuring seamless platform operation and improving product quality.
  • Collaborate with machine learning engineers, product managers, and quality assurance to resolve pain-points, automate toil, and improve overall developer experience.
  • Balance innovation and stability through thoughtful use of SLOs and error budgets, mitigating risk effectively while embracing and facilitating change.
  • Contribute to process improvements and drive strategic initiatives to help all engineers in the company be more effective, knowledgeable, and happier.

Required experience

  • Excellent problem-solving and communication skills, with the ability to debug and discuss complex issues
  • 2+ years experience developing products/applications in NodeJS, Python, or Golang
  • 2+ years experience roles similar to Site Reliability Engineering (SRE), DevOps, or Cloud Infrastructure
  • Hands-on experience with kubernetes
  • Experience with, and interest in, at least some of the following:
    • Amazon Web Services (AWS) or Google Cloud Platform (GCP)
    • Terraform or other infrastructure-as-code (IaC)
    • CI/CD with tools like Github Actions and ArgoCD
    • Monitoring and alerting, using prometheus and the grafana ecosystem
    • Software and infrastructure security practices
    • Troubleshooting in linux (e.g. disk, networking, logs)

Nice-to-have experience

  • Leadership in a team with similar responsibilities to those described above
  • Deploying applications to remote on-premises / air-gapped environments
  • Familiarity with cloud security principles and best practices (e.g., IAM, network security).
  • Working with machine learning teams and technology
  • Japanese language proficiency

Team culture

The Cogent Labs engineering department is continuously working towards developing a culture improving and rewarding the following qualities:

  • Team effort: A cohesive team can be more effective than an isolated prodigy. Engineers are expected to work well in groups and look for opportunities to empower their colleagues.
  • Ownership: Take full responsibility for your own projects and tasks and if needed, cross over boundaries in order to successfully deliver your project.
  • Self-improvement: Create an environment where engineers can focus on their engineering tasks and self-improvement without excessive outside disturbances.
  • Experimentation: Engineers should have some freedom in experimenting with new ideas and technologies, as this ultimately could translate into building better products or the creation of valuable new IP.
  • Quality & Excellence: Maintaining a mindset of developing high quality features and code. We avoid cutting corners as much as possible.
  • Customer Service: Being customer focused, not only externally but internally as well. This means developing services that not only improve the experience of our end customers, but also being ‘customer service’ oriented within your team and the company as a whole by helping out others and sharing knowledge.

The ideal candidate:

  • can empathize Cogent Labs’ VISION and MISSION
  • is a team player who aims for higher goals
  • has integrity and humility, and shows respect and gratitude to others
  • prefers open and transparent communication
  • has a strong growth mindset
  • can receive feedback positively and provide constructive feedback to others
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