Full Stack Developer Intern
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About this role
Xendit provides payment infrastructure across Southeast Asia and is expanding to Greater China and LATAM. We process payments, power marketplaces, disburse payroll and loans, provide KYC solutions, prevent fraud, and help businesses grow exponentially. We serve our customers by providing a suite of world-class APIs, eCommerce platform integrations, and easy to use applications for individual entrepreneurs, SMEs, and enterprises alike.
Our main focus is building the most advanced payment rails for Southeast Asia, with a clear goal in mind — to make payments across and within SEA simple, secure and easy for everyone. We serve thousands of businesses ranging from SMEs to multinational enterprises, and process millions of transactions monthly. We’ve been growing rapidly since our inception in 2015, onboarding hundreds of new customers every month, and backed by global top-10 VCs. We’re proud to be featured on among the fastest growing companies by Y-Combinator.
About the Job
Duration: 6 months
Type: Internship
We’re looking for a Full Stack Developer Intern to help build and improve internal tools and web applications used by operational teams. You’ll work with engineers to ship real features across frontend, backend, APIs, data platforms, and deployment workflows.
Minimum Qualifications
- Currently pursuing or recently completed a degree in Computer Science, Software Engineering, Information Systems, Data Science, or a related field.
- Basic proficiency in JavaScript or TypeScript.
- Familiarity with React and Node.js through coursework, personal projects, bootcamps, or previous experience.
- Understanding of HTTP, REST APIs, Git, and relational or NoSQL databases.
- Basic SQL knowledge.
- Comfortable learning unfamiliar tools and asking good questions.
- Able to communicate clearly in English and work collaboratively.
Preferred Qualifications
- Experience with Next.js, Fastify, Express, or similar frameworks.
- Familiarity with Docker, Kubernetes, AWS, GCP, CI/CD, or GitHub Actions/Buddy.
- Familiarity with BigQuery, data pipelines, ETL/ELT, dbt, Airflow, or Databricks.
- Exposure to Redis, PostgreSQL, message queues, or server-side background jobs.
- Experience building projects deployed beyond localhost.
- Interest in AI-assisted workflows, browser automation, or data platforms.
Tech you may work with
TypeScript, React, Vite/Next.js, Node.js, Fastify, Redis, Docker, Kubernetes, AWS, GCP, BigQuery, SQL, ArgoCD, Terraform, and Git-based CI/CD.
Responsibilities
- Build and maintain web interfaces using React and TypeScript.
- Develop backend APIs and services using Node.js/TypeScript.
- Integrate services with databases, REST APIs, queues, and third-party platforms.
- Help build data integrations that read from or write to Google Cloud Platform (GCP) and BigQuery.
- Support data querying, validation, and operational reporting using SQL and BigQuery.
- Write clean, tested, maintainable code and participate in code reviews.
- Help debug issues across the application stack.
- Assist with Docker, Kubernetes, CI/CD, and cloud deployment tasks.
- Collaborate with product, operations, data, and engineering stakeholders to turn requirements into working features.
- Document technical decisions and implementation details.
Company
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