OPSWAT, a global leader in IT, OT, and ICS critical infrastructure cybersecurity, delivers an end-to-end platform that gives public and private sector organizations and enterprises the critical advantage needed to protect their complex networks, secure their devices, and ensure compliance. Over the last 20 years our commitment to innovative technology has earned the trust of more than 1,700 organizations, governments, and institutions globally, solidifying our role in protecting the world's critical infrastructure and securing our way of life.
The Position
We are seeking a proactive and skilled Fullstack Engineer to join our growing engineering team building enterprise-grade cybersecurity software. As a mid-level contributor, you'll work closely with senior developers and team leads to build secure, scalable systems that power global data transfer capabilities for top-tier organizations.
This role is perfect for someone with a solid software engineering foundation who is looking to deepen their expertise across both backend (.NET) and modern frontend technologies, while contributing to meaningful product development.
What You Will Be Doing:
Contribute to the design, development, and maintenance of secure, scalable applications using .NET (C#) for backend services and JavaScript/TypeScript frameworks for frontend interfaces.
Collaborate with team members in Vietnam and the U.S. to implement features, resolve issues, and ensure product quality.
Participate in code reviews, write clean, testable code, and follow best practices for secure software development.
Strong proficiency with working & Security : Latency, OSI Model, Network Protocols, Throughput, Hashing, Encryption/Decryption.
Support system debugging, troubleshooting, and performance tuning efforts.
Contribute to automated testing, CI/CD pipelines, and deployment processes.
Continuously learn and apply new tools, technologies, and security practices.
What We Need From You:
Bachelor's degree in Computer Science, Software Engineering, or a related field.
2–3 years of professional experience in fullstack or backend software development.
Proficiency in .NET (C#) and exposure to frontend technologies (e.g., React, Angular, or similar).
Experience with RESTful API development and integration.
Familiarity with relational databases (SQL Server, PostgreSQL, etc.) and ORMs.
Basic understanding of secure development principles and version control (e.g., Git).
Strong communication and teamwork skills, with the ability to work in a collaborative, cross-cultural environment.
A growth mindset and willingness to learn from peers and mentors.
It Would Be Nice If You Had:
Familiarity with .NET Core, Docker, and containerized development.
Understanding of encryption standards and secure file transfer protocols.
Knowledge of frontend build tools and modern development workflows.
Exposure to Agile or Scrum development practices.
Experience with tools like Bitbucket, Jira, Confluence, and CI/CD pipelines (TeamCity, GitHub Actions, etc.).
#LI-onsite
OPSWAT is an equal opportunity employer. We celebrate diversity and are committed to providing an environment where equal employment opportunities are extended to all employees and applicants, free of discrimination and harassment of any type. All employment decisions are based on individual qualifications, job requirements, and business needs without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other category protected by federal, state, or local laws.
Recruiting Agencies: we do not accept unsolicited resumes from third party agencies for any of our open positions. To submit resumes for our jobs, there must be a recruiting contract approved by our legal team and endorsed by both parties. We are currently not accepting additional 3rd party agencies at this time.
