Full Stack Software Developer
Posted 4 Mar 2026
Advertised as “Full Stack Software Developer (Mid/ Senior Level)”
BranchFactor Summary
The original posting with the fluff stripped out
- Management level
- Individual contributor
- Employment
- On-Site
- Contract
- Full-time
No salary listed for this role.
This position is onsite at our office in Ho Chi Minh City, Vietnam.
Are you a talented engineer with a passion to build beautiful, easy to use apps for users? Combine not only technical knowledge in Full-Stack JavaScript, Node.js, React.js, but also your business acumen in learning and understanding how your apps add value to users. Join us to continue expanding our unique B2B SaaS app portfolios with already over 30,500 customers.
About Us
At OptiSigns, we believe technology should be accessible and valuable to everyone, including non-technical users. Our mission is to create beautiful, user-friendly B2B SaaS applications that add real value to society. By helping businesses connect better with their customers and employees, we aim to drive revenue growth and enhance operational efficiency.
Responsibilities:
- Work on the design and development of apps from concept to production.
- Develop and maintain front-end components using modern JavaScript, TypeScript frameworks such as React.js or Angular.
- Implement server-side logic and APIs using Node.js, Express.js, NestJS or other back-end technologies.
- Design and optimize database schemas and queries using relational and/or NoSQL databases.
- Write clean, efficient, and maintainable code adhering to coding standards and best practices.
- Collaborate with product managers, designers, and other stakeholders to define and prioritize features.
- Stay up-to-date with emerging technologies and industry trends, and advocate for their adoption when appropriate.
Requirements
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5+ years of experience in full-stack web development, with a strong focus on both front-end and back-end technologies.
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Proficiency in front-end frameworks such as React.js, AngularJS.
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Proficiency in back-end technologies such as Node.js, Express.js, Nest.js.
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Experience with database systems such as MySQL, PostgreSQL, MongoDB, or Redis.
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Strong problem-solving and analytical skills, with a track record of delivering scalable and reliable solutions.
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Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.
Nice to have
- Experience with Angular.
- Experience with Stripe or other payment/billing integrations.
- Familiarity with Docker, Kubernetes and a cloud provider (AWS, GCP or DigitalOcean).