Senior Full-Stack Engineer

SaaSify Labs; Austin (TX); Remote; USD 140,000 - 190,000; Full time

Job summary

SaaSify Labs is seeking a Senior Full-Stack Engineer to join the core product team. You’ll design, build, and ship high-quality web applications using NestJS, Next.js, and PostgreSQL, owning features end-to-end from database schema to UI, and mentoring junior engineers as needed.

You will collaborate with founders, optimize for performance and security, and contribute to architectural decisions while maintaining a high standard of code quality.

Qualifications

• 5+ years of professional software development experience.
• 3+ years with React or Next.js in production.
• 3+ years with Node.js (NestJS or Express) building APIs.
• Strong SQL knowledge — PostgreSQL preferred.
• Experience with TypeScript (required).
• Understanding of software design patterns and clean architecture.

Responsibilities

• Design and build scalable REST/GraphQL APIs with NestJS.
• Build responsive Next.js frontends with clean component architecture.
• Own features end-to-end from database schema to UI.
• Write comprehensive unit and integration tests.
• Participate in code reviews and maintain high code quality standards.
• Collaborate with designers to implement pixel-perfect UIs.

Skills

Software development

Mentoring

Leadership

Tools

NestJS

Next.js

PostgreSQL

Node.js

TypeScript

AWS

Job description

# Senior Full-Stack EngineerEngineering Remote Full-timeApply for this role →## About the RoleWe're looking for a Senior Full-Stack Engineer to join our core product team. You'll work directly with founders to design, build, and ship high-quality web applications using our primary stack: NestJS, Next.js, and PostgreSQL. This is a high-ownership role — you'll make architectural decisions, lead features from design to deployment, and mentor junior team members when needed.## What You'll Do* Design and build scalable REST/GraphQL APIs with NestJS* Build responsive Next.js frontends with clean component architecture* Own features end-to-end from database schema to UI* Write comprehensive unit and integration tests* Participate in code reviews and maintain high code quality standards* Collaborate with designers to implement pixel-perfect UIs* Optimize for performance, security, and scalability* Contribute to architectural decisions and technical planning## What We're Looking For* 5+ years of professional software development experience* 3+ years with React or Next.js in production* 3+ years with Node.js (NestJS or Express) building APIs* Strong SQL knowledge — PostgreSQL preferred* Experience with TypeScript (required)* Understanding of software design patterns and clean architecture* Experience with AWS or similar cloud platforms* Strong English communication skills### Nice to Have* +Experience with Flutter or React Native* +Contributions to open-source projects* +Experience at a product startup or agency## What We OfferCompetitive SalaryMarket rate + performance bonusesFlexible HoursAsync-first, you own your scheduleAI-Powered ToolingGitHub Copilot, Claude, full AI stackLearning Budget$1,000/year for courses and conferencesSenior MentorshipWork with engineers who've shipped real productsCareer GrowthClear path from engineer to leadApply for this role