Software Engineering Intern - MetaDefender Cloud

The Position

OPSWAT is now searching for a Software Engineering Intern to join our MDCloud product. MDCloud is a real-time malware scanning platform handling 30M+ requests/day, built on a Node.js/TypeScript microservices architecture with event streaming (Kafka, RabbitMQ) and React frontend.

As an Intern, you'll work directly with senior engineers shipping real features, fixing real bugs, and learning how a production-grade cybersecurity platform is built and operated.

What You Will Be Doing

• Implement small features and bug fixes across backend services (Node.js/TypeScript) under guidance from senior engineers
• Write unit and integration tests to improve coverage on existing modules
• Participate in code reviews: receiving feedback and reviewing peers
• Debug issues in local and staging environments using logs and tracing tools
• Read and understand event-driven flows (Kafka consumers, RabbitMQ handlers) to contribute to ingestion and processing pipelines
• Update and maintain internal documentation, API specs, and runbooks
• Join sprint planning, daily standups, and retrospectives as an active team member
• Experiment with frontend components in the internal tooling dashboard (React + TypeScript)

What You'll Learn

By the end of your time on MDCloud, you'll have hands-on exposure to:

• Production TypeScript microservices: structure, patterns, and testing
• Event-driven architecture with Kafka and RabbitMQ
• Docker and basic Kubernetes concepts (deployment, logs, exec)
• Code review culture and engineering standards in a global product company
• How a cybersecurity SaaS platform processes millions of file scan requests

What We Need From You

Education & Background

• Pursuing or completed a degree in Computer Science, Software Engineering, or equivalent
• Able to commit at least 4 months (internship) or full-time (associate)

Soft Skills

• Curious and proactive
• Communicates clearly in English (written); able to describe problems and solutions concisely
• Receptive to feedback and willing to iterate quickly
• Comfortable working in a team across different timezones

Technical Fundamentals

• Solid understanding of programming fundamentals: data structures, algorithms, OOP
• Hands-on experience with JavaScript or TypeScript coursework or personal projects count
• Familiar with Git: branching, pull requests, resolving conflicts
• Basic understanding of REST APIs: HTTP methods, status codes, request/response structure
• Able to read and understand existing code in an unfamiliar codebase
• Actively uses AI coding tools (GitHub Copilot, Cursor, Claude, ChatGPT) as part of daily workflow, knows how to prompt effectively, verify output, and not blindly trust generated code

Dev Environment

• Comfortable working in a Linux/macOS terminal
• Knows how to run a project locally with Docker Compose
• Can use a debugger or structured logging to trace a bug

If Would Be Nice If You Had

• Prior internship or project experience with a Node.js or TypeScript backend
• Familiar with any testing framework (Jest, Vitest, Mocha)
• Basic React knowledge: able to build or modify a UI component
• Exposure to message queues (Kafka, RabbitMQ, Redis) 
• Knows what a microservice is and why services communicate over events
• Experience with any cloud provider (AWS, GCP, Azure) 
• Interest in cybersecurity: malware analysis, threat intelligence, or security tooling
• Has read about or experimented with CI/CD pipelines
• Experience building features or scripts with AI assistance end-to-end from prompt design to testing the result
• Understands limitations of LLM-generated code: hallucinations, outdated APIs, security blind spots
• Has experimented with AI APIs (OpenAI, Anthropic, Gemini) in side projects
• Familiar with concepts like RAG, embeddings, or function calling even at a basic level