About Us
We're Keranos Tech — a Bangkok-based AI and software startup building cutting-edge digital solutions. From high-performance backend systems to sleek, user-friendly frontends, we're creating products that scale fast, look great, and deliver real impact.
As an early-stage company, every team member has a massive influence on tech choices, product direction, and culture. If you're passionate about building end-to-end systems that just work — and work beautifully — we want you on the team.
🎯 Your Leadership Role
As a Senior Full Stack Developer, you'll be a technical leader who excels in backend development while demonstrating expert proficiency in modern JavaScript and frontend technologies. You'll drive technical decisions across the entire stack, mentor team members, and establish best practices.
What You'll Do
- Architect and implement complex, scalable backend services and RESTful/GraphQL APIs using Node.js and Express.js
- Design and develop sophisticated, responsive user interfaces using modern JavaScript (ES6+), HTML5, and CSS3
- Lead the implementation of component-based frontend architectures with emphasis on performance, reusability, and maintainability
- Architect and optimize database schemas (MySQL, PostgreSQL) for high-performance, scalable applications
- Design and implement comprehensive security strategies including authentication, authorization, and data protection
- Lead technical discussions and collaborate with stakeholders, product managers, and cross-functional teams
- Establish and enforce coding standards, best practices, and architectural patterns across the development team
- Mentor and guide junior and mid-level developers through code reviews and knowledge sharing
What We're Looking For
- 5+ years of professional full stack web development experience, with at least 2 years in a senior or lead role
- Backend: Expert proficiency in Node.js, Express.js, and microservices architecture
- Frontend: Expert-level JavaScript (ES6+), HTML5, CSS3, and deep understanding of web performance optimization
- Databases: Advanced knowledge of MySQL and PostgreSQL, including complex query optimization, indexing strategies, and database design patterns
- Proven experience designing and implementing RESTful APIs and GraphQL schemas at scale
- Strong experience with version control (Git), advanced CI/CD workflows, and infrastructure as code
- Demonstrated experience in system design and architecture for high-traffic applications
- Proven track record of mentoring developers and leading technical initiatives
Bonus Points
- Experience with cloud platforms (AWS, GCP, Azure) and serverless architectures
- Expertise with containerization and orchestration (Docker, Kubernetes, Helm)
- Hands-on experience with multiple frontend frameworks (React, Vue, Angular)
- Advanced authentication & authorization implementation (JWT, OAuth 2.0, SAML, RBAC, SSO)
- Experience with event-driven architectures and message queuing systems
- Knowledge of NoSQL databases (MongoDB, DynamoDB, Cassandra)
- Prior leadership/mentorship experience in a dev team
Node.js
Express.js
JavaScript ES6+
MySQL
PostgreSQL
RESTful APIs
GraphQL
CI/CD
Leadership
Why Join Us?
- Ownership: Shape the stack and set best practices for full stack development
- Cutting-Edge Projects: Work across backend, frontend, and cloud — never stuck in one layer
- Impact: Small, fast team — your code will hit production and users quickly
- Growth: Be part of defining the tech culture and mentoring the next hires
- Bangkok-based team — competitive salary + performance bonuses
- Health insurance and comprehensive benefits
- Professional development opportunities and training budget