The Position

OPSWAT is now searching for a Software Engineering Intern to join our MDaaS product. MDaaS 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 — both 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 MDaaS, 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 — asks questions, doesn't wait to be unblocked

• 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) — even conceptually

• Knows what a microservice is and why services communicate over events

• Experience with any cloud provider (AWS, GCP, Azure) — even free tier

• 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

About you

We’re looking for people with a strong background or interest in building successful products or systems; you’re comfortable in dealing with lots of moving pieces; you have exquisite attention to detail; and you’re comfortable learning new technologies and systems.

The Opportunity

We have backend engineers in almost every team across Telnyx, and in that role, you’ll be making some of the most significant decisions for the company. You’ll get to work with other engineers to build delightful features that span various parts of the system, as well as our business, sales, and operations teams to understand and solve our users’ pain points.

• Design, build, and maintain APIs, services, and systems across Telnyx’s engineering teams.
• Debug production issues across services and multiple levels of the stack.
• Work with engineers across the company to build new features at large scale.
• Improve engineering standards, tooling, and processes.

What We're Looking For

• Have 6+ years of professional software development experience with a functional programming language (Elixir/Erlang is preferred).
• Have experience working with relational databases at scale.
• Have deep knowledge of microservice architecture patterns and anti-patterns.
• Have experience with message queues like RabbitMQ and Kafka.
• Understand the challenges inherent in concurrent and distributed programming.
• Have experience with more exotic databases/key-value stores such as ETS, Mnesia, Cassandra and Redis.
• Have familiarity with Docker, Kubernetes, Consul, Jenkins, Prometheus, or RabbitMQ.

Bonus Points For

• You take a thoughtful approach to decision-making, knowing when to move fast and when to long-term optimize.
• You want to work in a fast-paced, product-driven environment.
• You keep up to date with the latest technologies and patterns and enjoy sharing what you’ve learned.

#LI-VIETNAM
#LI-KG1

Backend Engineer: Platform API - Vietnam

Company Introduction

Our mission is to enable every organization to be climate conscious and positive with the world’s best climate software and data products. Persefoni is creating an all-in-one platform that allows organizations to measure, analyze, and reduce their Enterprise Carbon Footprint. Our goal is to provide our customers unprecedented visibility and insights into the impact their organization has on the environment. Leveraging the latest breakthroughs in data science and software, our technology will empower teams and leaders to mobilize their organizations to continuously improve their greenhouse gas emissions metrics.

About The Role (What you will get to do)

The Backend Engineer will be a key member to assist in building out our web services and backend persistence layer. Successful candidates should have a minimum of three years of recent professional programming in positions requiring the skills listed below with an emphasis on Golang, SQL and data modeling development. Our project entails implementing our pre-approved development targets and developing a robust and reusable code framework to deliver a variety of new features across our product lines according to our preferred architecture design and best practices. Our backend stack is a combination of Golang, Redis, MySQL, and Snowflake while following the Clean Architecture Design pattern. APIs are documented and managed using the Open API framework and maintained in ReadMe. All development work is managed via JIRA tracked sprints, Github trunk-based management, and infrastructure is managed in AWS with monitoring in Datadog.

Responsibilities (What we expect)

• Collaborate on the design of data models, technical architecture, data flows, schemas, and API contracts.
• Relay updates on existing work via Jira ticket status, push well documented pull requests for features, and collaborate through review and comments on your fellow developer pull requests.
• Building scalable and robust APIs within Go following the Clean Architecture Design pattern and API best practices around security and scaling.
• Write/Update Open API documentation to document new/existing APIs.
• Write/Update unit and integration tests to ensure adequate test coverage of our code base. 

Qualifications (What you bring to the role)

• At least 3+ years experience professionally programming in Go.
• At least 3+ years of experience specifically building back-end systems.
• At least 3 years of experience writing SQL against normalized data structures.
• Proficiency with code debugging and uncovering performance issues utilizing developer tooling.
• Proficiency writing unit and integration tests.
• Proficiency in English language is highly preferred. 

How You'll Know You’re on the Right Track

• Within your first day, you should have been able to clone the repository and install the necessary tooling to build and run our projects locally.
• Within your first week, you will be familiarizing yourself with the code base and coordinating work on development tickets as requested.
• Within your first month, you should be successfully operating within the development team, submitting PRs, providing feedback on team member PRs, and advancing your assigned projects with your contributions.
• Within your first year, you should be contributing to the data and software engineering teams to provide your personal insights as to how to improve our processes and architectures. 

Job Type:

Full-time position located in Vietnam governed by Vietnam labour regulations, with the Persefoni entity being established in Vietnam.   

Interview Process

• Step 1: Initial screen with talent acquisition
• Step 2: Technical Interview
• Step 3: Interview with Vietnam Country Director
• Step 2: Interview with Engineering Leadership team
• Step 4: Offer extended
• Step 5: Background check and onboarding

Persefoni is an Equal Opportunity employer

We are committed to valuing and respecting people and organizations of all backgrounds. We proudly bring this to life by fostering a culture of innovation, creativity, diversity of thought, and inclusion.

We strive for each of our team members to be able to show up for work every day as their genuine selves. Similar to the reverence given to Earth’s biodiversity, we recognize the vast potential that exists when all of the facets of diversity within our team are appreciated and illuminated. This policy extends to all aspects of our employment practices.

Company Introduction

Our mission is to enable every organization to be climate conscious and positive with the world’s best climate software and data products. Persefoni is creating an all-in-one platform that allows organizations to measure, analyze, and reduce their Enterprise Carbon Footprint. Our goal is to provide our customers unprecedented visibility and insights into the impact their organization has on the environment. Leveraging the latest breakthroughs in data science and software, our technology will empower teams and leaders to mobilize their organizations to continuously improve their greenhouse gas emissions metrics.

About The Role (What you will get to do)

The Data Engineer will be a key member to assist in building out our web services and backend persistence layer. Successful candidates should have a minimum of three years of recent professional programming in positions requiring the skills listed below with an emphasis on data integrity and data pipelines. Our project entails implementing our pre-approved development targets and developing a robust and reusable code framework to deliver a variety of new features across our product lines according to our preferred architecture design and best practices. Our backend stack is a combination of Golang, Redis, MySQL, and Snowflake while following the Clean Architecture Design pattern. APIs are documented and managed using the Open API framework and maintained in ReadMe. Our data pipelines for data loading and machine learning pipelines are managed via Databricks while our data transformation occurs with DBT against Snowflake within AWS cloud services. All development work is managed via JIRA tracked sprints, Github Git-flow branch management, and infrastructure is managed in AWS with monitoring in Datadog.

Responsibilities (What we expect)

• Collaborate on the design of data models, technical architecture, data flows, schemas, and API contracts.
• Relay updates on existing work via Jira ticket status, push well documented pull requests for features, and collaborate through review and comments on your fellow developer pull requests.
• Building scalable and robust data flows using Databricks, DBT and Snowflake.
• Add/Update to our backend persistence model in MySQL by writing SQL based migration scripts.
• Write/Update data test using native DBT tests and frameworks like Great Expectations to ensure adequate test coverage of our code base.

Qualifications (What you bring to the role)

• At least 3+ years experience building/managing data pipelines within Databricks.
• At least 3+ years experience transforming data in Snowflake with tools like DBT.
• At least 3+ years of experience specifically building data and ML pipelines
• At least 3 years of experience writing SQL against normalized data structures.
• Proficiency with code debugging and uncovering performance issues utilizing developer tooling.
• Proficiency writing data tests.
• ExperienceProficiency in English language is highly preferred. 

How You'll Know You’re on the Right Track

• Within your first day, you should have been able to clone the repository and install the necessary tooling to build and run our projects in cloud based IDEs such as Databricks and DBT.
• Within your first week, you will be familiarizing yourself with the code base and coordinating work on development tickets as requested.
• Within your first month, you should be successfully operating within the development team, submitting PRs, providing feedback on team member PRs, and advancing your assigned projects with your contributions.
• Within your first year, you should be contributing to the data and software engineering teams to provide your personal insights as to how to improve our processes and architectures. 

Job Type:

Full-time position located in Vietnam governed by Vietnam labour regulations, with the Persefoni entity being established in Vietnam.   

Interview Process

• Step 1: Initial screen with talent acquisition
• Step 2: Technical Interview
• Step 3: Interview with Vietnam Country Director
• Step 2: Interview with Engineering Leadership team
• Step 4: Offer extended
• Step 5: Background check and onboarding

Persefoni is an Equal Opportunity employer

We are committed to valuing and respecting people and organizations of all backgrounds. We proudly bring this to life by fostering a culture of innovation, creativity, diversity of thought, and inclusion.

We strive for each of our team members to be able to show up for work every day as their genuine selves. Similar to the reverence given to Earth’s biodiversity, we recognize the vast potential that exists when all of the facets of diversity within our team are appreciated and illuminated. This policy extends to all aspects of our employment practices.

Our Client is a high-performance data indexing and visualization platform designed to provide users with unmatched query speed and intuitive visualization at an efficient cost. They leverage its superior dataset organization methodologies and exploit data parallelism through GPU acceleration and decentralized computing to achieve both speed and efficiency.

The role

We are looking for a highly skilled Rust Engineer with expertise in backend development, Rust programming, and strong knowledge in blockchain technology to join their remote team in APAC.

As a Software Engineer, you will be responsible for designing and developing robust backend services using Rust, that are scalable, secure, and high-performance. Experience in Parallel Programming and working with High-Frequency Trading platforms is an advantage.

If you are skilled in critical thinking, possess excellent problem-solving abilities, and are eager to contribute to greenfield projects in the blockchain industry, come and join the team!

In this role, you will:

• Design, develop, and maintain backend services using Rust programming language.
• Collaborate with software engineers, designers, and product managers to translate requirements into technical solutions.
• Ensure the scalability, performance, and reliability of backend systems.
• Implement automated testing and establish continuous integration/continuous deployment (CI/CD) pipelines.
• Participate in architectural and technical decision-making to improve system architecture and processes.

You might thrive in this role if you have:

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in Rust programming language with good programming habits, coding style, and familiarity with common development frameworks and libraries.
• Experience in developing high-performance, scalable, and reliable software applications.
• Proficiency in using version control tools like Git and experience with testing frameworks and methodologies.
• Proficiency in using common middleware such as MySQL, Redis, and message queues.
• Proficiency in understanding and implementing basic algorithms.
• Familiarity with mainstream public blockchain technologies and their working principles.
• Strong interest and passion for the blockchain industry.
• Strong critical thinking, problem-solving abilities, and a quick learner.
• Clear logic, strong security awareness, and excellent teamwork skills.
• Fluency in English is a must.

#LI-REMOTE