Tech Lead (any programming language)

Qualifications 5+ years of experience in software development with strong hands-on skills in a modern programming language (e.g., Go, Java, Kotlin, TypeScript, Python, etc.). Experience in leading small teams or acting as a Scrum Master, Tech Lead, or Engineering Manager in an Agile environment. Deep understanding of backend system design, software architecture, and micro-services. Strong communication and stakeholder management skills, with ability to collaborate effectively with product managers, designers, and leaders. Comfortable facilitating Agile ceremonies and balancing delivery accountability with technical execution. Strong sense of ownership, self-direction, and reliability in fast-moving environments. Nice-to-Haves Experience with distributed systems, message queues (e.g., Kafka), or event-driven architectures. Familiarity with Domain-Driven Design (DDD), clean architecture, or design patterns for scalable backend development. Exposure to infrastructure as code, containerized environments (e.g., Docker, Kubernetes), or cloud platforms (especially AWS). Experience working in a multi-national, cross-timezone team environment. Scrum Master certification (CSM, PSM) or similar is a plus. Language Skills Business level English proficiency (TOEIC score of 700 or above equivalent). Japanese proficiency is not required but nice to have. Technology Stack Language: Go, Java, Python or any other languages Database: MySQL, DynamoDB, Redis Infrastructure/Middleware: Terraform, Kubernetes, AWS (EKS, ECR, RDS, S3, SQS, SNS, etc…), GCP, Docker, Kafka, NginX, Consul Tools Used Communication: Slack, Kibela, Zoom Monitoring: Datadog, Rollbar, Sentry Repository Management: GitHub CI/CD: Argo CD, Circle CI, Jenkins, GitHub Actions Ticket Management: Jira Security: Dependabot, Sonarqube