Full Stack Software Developer

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, [protected info], [protected info], 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 [protected info] or Angular
Implement server-side logic and APIs using [protected info], [protected info], 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
5+ years of experience in full-stack web development, with a strong focus on both front-end and back-end technologies
Proficiency in front-end frameworks such as [protected info], AngularJS
Proficiency in back-end technologies such as [protected info], [protected info], [protected info]
Experience with database systems such as MySQL, PostgreSQL, MongoDB, or Redis
Strong problem-solving and analytical skills, with a track record of delivering scalable and reliable solutions
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)
Experience using AI coding assistants (e.g. Claude Code, GitHub Copilot) as part of daily work
Background in multi-tenant SaaS products
Benefits
Compensation & Insurance
Attractive, competitive salary based on your performance and experience
Full gross salary paid during probation
Full social insurance contributions based on 100% of your gross salary after probation
Premium healthcare insurance package and annual health checkups
Equipment and Work Environment
Modern equipment provided: laptop (Macbook/Window), 4K monitor, and height-adjustable standing desk
Company-provided Claude AI account to support your daily work
Join a global SaaS product company with a strong international presence
United States onsite opportunity
Career and Growth
Structured onboarding and continuous professional development, including product training, internal tech talks and English class
Culture & Perks
Company trips
Daily snacks and drinks provided
Sports clubs: football, badminton, and typing contests
Our VN Office address: 127 Hong Ha, Duc Nhuan Ward, Ho Chi Minh City, Vietnam.