AI Full Stack Developer Backend

InternSG; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

KokoroLab is seeking Backend Engineers to design, build, and optimize scalable backend systems for AI services in a fast-growing environment. You’ll architect robust API services (REST/GraphQL), implement efficient business logic and database layers, and ensure security and reliability across cloud deployments.

Join a collaborative team focusing on scalable architectures, high-concurrency workloads, and API integrations with frontend and ML teams.

Qualifications

• Design, build, and maintain scalable backend architectures.
• Build and maintain robust API services (REST / GraphQL).
• Implement efficient business logic, database schema, and caching layers.
• Optimize database queries and backend performance.
• Collaborate with frontend and ML teams for system integrations.
• Ensure security, scalability, and reliability of backend systems.
• Contribute to DevOps, monitoring, and CI/CD pipelines.

Responsibilities

• Design, develop, and maintain scalable backend architectures.
• Build and maintain robust API services (REST / GraphQL).
• Implement efficient business logic, database schema, and caching layers.
• Optimize database queries and backend performance.
• Collaborate closely with frontend and ML teams to deliver stable system integrations.
• Ensure backend systems meet standards of security, scalability, and reliability.
• Contribute to DevOps, monitoring, and CI/CD pipelines.

Skills

Backend design

API development

System design

DevOps ownership

Education

Bachelor’s degree in Computer Science or related field

Tools

Node.js

Python

Go

REST

GraphQL

MongoDB

MySQL

Redis

PostgreSQL

Docker

Kubernetes

AWS

GCP

Job description

We’re seeking talented Backend Engineers with strong engineering and system design skills to join our core team.

You will be responsible for architecting, building, and optimizing backend systems, ensuring KokoroLab’s AI services are scalable, secure, and performant.

• Design, develop, and maintain scalable backend architectures;




• Build and maintain robust API services (REST / GraphQL);




• Implement efficient business logic, database schema, and caching layers;




• Optimize database queries and backend performance;




• Collaborate closely with frontend and ML teams to deliver stable system integrations;




• Ensure backend systems meet standards of security, scalability, and reliability;




• Contribute to DevOps, monitoring, and CI/CD pipelines.

Job Requirements:

• Bachelor’s degree or above in Computer Science, Software Engineering, or related fields;




• Strong proficiency in Node.js / Python / Go (at least one required);




• Experience in RESTful and/or GraphQL API development;




• Familiar with databases and caching systems (MongoDB, MySQL, Redis, PostgreSQL);




• Understanding of containerization and cloud deployment (Docker, Kubernetes, AWS, GCP);




• Good awareness of system architecture, scalability, and security principles;




• Strong ownership and clean, maintainable coding practices.

Preferred Qualifications:

• Experience with high-concurrency or distributed systems;




• Familiarity with microservices and message queues (Kafka / RabbitMQ);




• Background in AI inference service deployment or model serving;




• Knowledge of DevOps and CI/CD workflows;




• Contributions to open-source projects or public engineering portfolios

Benefits:

• Gain hands-on experience in a leading AI company at the forefront of technological advancements.




• Work closely with a diverse team of experts and professionals in the AI industry.




• Opportunity to showcase your skills and potentially secure a future career with the company.




• Official annual leaves and medical leaves given.




• Potential for performance-based incentives and awards, or opportunity to be converted into full time staff.

Some Testimonials from our former students:

1. Student Han from NUS: “The Internship at this company was an invaluable learning experience. I was immersed in an environment that prioritized learning, collaboration, and real-world application.” “The diverse projects I was assigned allowed me to refine my technical skills, from frontend development with frameworks like React and Next.js to backend integration using Node.js and Express. And database skills like MongoDB PostgresSQL & Prisma.”




2. Student Sor from NUS: “My internship at this company was a highly rewarding experience. I had the opportunity to work on impactful projects and collaborate with a talented team, which made it an invaluable learning experience”. “This internship contributed to my personal and professional growth. It has prepared me well for my future career.”




3. Student Tan from SIT/DigiPen: “Through hands-on project work, I honed my software development abilities and gained practical experience in deploying software solutions.”. “Collaborating with colleagues and presenting my findings during meetings allowed me to articulate complex ideas more effectively”. “Beyond the technical and professional aspects, this internship also contributed to my personal growth. It boosted my confidence in my abilities, showing me that I could take on challenges and deliver valuable contributions. Overall, this internship was a transformative experience that not only expanded my skill set but also shaped my outlook on work, collaboration, and personal development.”




4. Student Leo from Temasek Polytechnic: “Today marks the last day of my internship in this company. I would like to express my gratitude for all the support my colleagues have given me throughout my internship. It has been an adventure so far and as I am sad to leave, I am also excited that everything I have learnt during this time will help to shape the rest of my career. I had the opportunity to work on cutting-edge technology in the Artificial Intelligence industry and collaborate with like-minded people towards certain project milestones. It's been a pleasure working at this company with great people, I will never forget the bond and laughter that we shared. I am also thankful to my superiors for their mentorship & guidance in the projects I have handled, it was an eye-opening experience.”