Hybrid Full-Stack Engineer: Build Scalable UI & APIs

5160 Kyndryl (Singapore) Pte. Ltd.; Singapore; Hybrid; SGD 90,000 - 130,000; Part time

Job summary

Kyndryl is seeking a seasoned full-stack developer to design, build, and scale features across the frontend and backend. You will work with React/Angular/Vue on the frontend and Node.js, Python, or Java on the backend, integrating APIs and databases, and writing robust tests.

You will collaborate with product managers and designers in an Agile setting, contribute to architecture decisions, and mentor junior engineers to drive high-quality software delivery.

Qualifications

• 3–6 years of professional full-stack development experience.
• Proficiency in HTML5, CSS3, JavaScript ES6+ and at least one major frontend framework (React, Angular, Vue).
• Strong proficiency in at least one backend language (Node.js, Python, Java, C, Ruby, Go) and frameworks.
• Solid experience designing and consuming RESTful APIs.
• Experience with relational (PostgreSQL/MySQL) and/or NoSQL (MongoDB/Redis) databases.
• Proficient with Git and collaborative workflows (Gitflow, PRs).
• Experience writing automated tests (unit, integration).
• Understanding of SOLID, OOP, and design patterns.
• Strong problem-solving, debugging, and analytical skills.
• Excellent communication and collaboration in Agile/Scrum teams.

Responsibilities

• Design, develop, test, and deploy features across the full stack (frontend & backend).
• Build responsive and accessible user interfaces using modern frameworks.
• Develop and maintain backend services, APIs (RESTful, GraphQL).
• Design and interact with relational and/or NoSQL databases.
• Write comprehensive unit, integration, and end-to-end tests.
• Conduct code reviews and provide constructive feedback.
• Debug and resolve complex technical issues efficiently.
• Collaborate with product managers, designers and engineers.
• Contribute to technical design and architecture decisions.
• Optimize application performance and scalability.
• Mentor junior developers.
• Engage in agile processes and process improvements.

Skills

Full-stack development

Frontend technologies

Backend languages

RESTful APIs

Databases

Git workflows

Automated tests

Design patterns

Problem solving

Communication

Agile/Scrum

Tools

Docker

Kubernetes

GraphQL

CI/CD

Job description

Kyndryl is seeking a seasoned full-stack developer to design, build, and scale features across the frontend and backend. You will work with React/Angular/Vue on the frontend and Node.js, Python, or Java on the backend, integrating APIs and databases, and writing robust tests.

You will collaborate with product managers and designers in an Agile setting, contribute to architecture decisions, and mentor junior engineers to drive high-quality software delivery.