Full-stack services · 5+ years
Freelance SaaS Maintenance Developer
Need a SaaS maintenance developer for an existing product? I help with React and Next.js maintenance, focused fixes, and ongoing SaaS development across Node.js APIs and data models. We work through agreed milestones based on your application and priorities.
Base Upwork rate: $25/hour. Fixed-price estimates depend on the agreed scope.
What I can help with
Focused fixes
Investigate a reproducible issue, agree on the expected behavior, and implement the change in the relevant part of the application.
Incremental product development
Extend dashboards, workflows, APIs, permissions, and integrations as the requirements of the product evolve.
Continued collaboration
Work through a prioritized backlog with agreed milestones, written updates, and clear handover notes.
Relevant work
ERP / Catering
Just Fare
React/Firebase dashboard covering catering operations, consumption analytics, and weekly billing.
View case studySocial / Books
Storinky
React and Node.js book-tracking product with catalogs, author pages, libraries, and collections.
View case studyHow we work together
- 01
Share the application context, a reproducible issue or prioritized backlog, and the expected result.
- 02
Review the relevant code and agree on the first milestone, estimate, and verification steps.
- 03
Deliver and verify the change, then agree on the next priorities if continued work is useful.
Common questions
Can we start with a small task?
Yes. A clearly scoped first task is a practical way to begin. The estimate depends on the codebase, issue, and acceptance criteria.
Does maintenance include round-the-clock support?
No round-the-clock availability or response-time SLA is included by default. Working arrangements and availability are agreed before the contract.
What does ongoing SaaS development include?
It can include focused fixes and incremental changes to dashboards, workflows, APIs, permissions, and integrations. We choose the work from a prioritized backlog and agree on the scope of each milestone.
Can you maintain an existing React, Next.js, or Node.js application?
Yes. I work on existing products across these technologies. We begin by reviewing the relevant code, dependencies, and expected behavior so the first task fits the application.
What should I include in a bug report for SaaS maintenance?
Describe the expected and actual behavior, steps to reproduce the issue, and which part of the application is affected. Screenshots and relevant error messages can help us define the investigation and verification steps.
Start with a focused conversation
Share the requirements, existing application, or issue. We can define the scope and a realistic next step.
Hire me on Upwork