Full Stack Developer Needed for SaaS Platform

Posted last week

Worldwide

Summary

We are looking for an experienced Full Stack Developer to help build and scale a SaaS platform from the ground up. The ideal candidate should be comfortable working across the entire technology stack, contributing to architecture decisions, developing new features, optimizing performance, and ensuring a high-quality user experience. This is an opportunity to work on a growing product with long-term potential and a significant impact on the platform's success. Responsibilities Develop and maintain front-end and back-end components of the SaaS platform. Build responsive, user-friendly web applications. Design and implement RESTful APIs and third-party integrations. Work with databases, authentication systems, and cloud infrastructure. Optimize application performance, scalability, and security. Collaborate with product, design, and business stakeholders. Write clean, maintainable, and well-documented code. Participate in code reviews and technical planning. Required Skills Strong experience with modern JavaScript/TypeScript frameworks (React, Next.js, Vue, or similar). Experience with back-end development using Node.js, Python, PHP, or similar technologies. Solid understanding of REST APIs and microservices architecture. Experience with SQL and/or NoSQL databases. Familiarity with cloud platforms such as AWS, Google Cloud, or Azure. Knowledge of authentication, authorization, and security best practices. Experience with Git and modern development workflows. Strong problem-solving and communication skills. Preferred Qualifications Previous experience building SaaS products. Experience with AI/LLM integrations (OpenAI, Claude, Gemini, etc.). Experience with payment gateways (Stripe, PayPal, etc.). Familiarity with Docker, CI/CD pipelines, and DevOps practices. Startup experience and ability to work independently. Project Details Platform Type: SaaS Application Engagement: Long-term Hours: Flexible Start Date: Immediate To Apply Please include: A brief introduction about yourself. Links to 2–3 relevant SaaS projects you have built. Your preferred technology stack. Your availability (hours per week). Your hourly rate or fixed-price expectations. A short description of your role in the projects you share.

  • Less than 30 hrs/week
    Hourly
  • 1-3 months
    Duration
  • Expert
    Experience Level
  • $10.00

    -

    $15.00

    Hourly
  • Remote Job
  • One-time project
    Project Type
Skills and Expertise
Mandatory skills
Web Application
API Integration
Activity on this job
  • Proposals:50+
  • Last viewed by client:3 days ago
  • Hires:
    1
  • Interviewing:
    1
  • Invites sent:
    1
  • Unanswered invites:
    0
About the client
Member since Jun 9, 2026
  • United Kingdom
    Glasgow10:20 AM
  • $187 total spent
    2 hires, 2 active
  • 6 hours

Explore similar jobs on Upwork

Software DeveloperHourly‐ Posted 7 months ago
ASP.NET MVC
Django
Python
AngularJS
JavaScript
jQuery
WordPress
Google Chrome Extension
React
CRM Development
Microsoft Dynamics 365
Microsoft Dynamics CRM
Microsoft Dynamics Development
Microsoft PowerApps
Single Sign-On
Build Marketplace on TokopediaHourly‐ Posted 4 weeks ago
PHP
HTML5
JavaScript
Web Development

How it works

  • Post a job icon
    Create your free profile
    Highlight your skills and experience, show your portfolio, and set your ideal pay rate.
  • Talent comes to you icon
    Work the way you want
    Apply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
  • Payment simplified icon
    Get paid securely
    From contract to payment, we help you work safely and get paid securely.
Want to get started? Create a profile

About Upwork

  • Rating is 4.9 out of 5.
    4.9/5
    (Average rating of clients by professionals)
  • G2 2021
    #1 freelance platform
  • 49,000+
    Signed contract every week
  • $2.3B
    Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Trusted by

  • Microsoft Logo
  • Airbnb Logo
  • Bissell Logo
  • GoDaddy Logo