Senior Next.js / Sanity Developer for Existing B2B SaaS Website

Posted 3 hours ago

Worldwide

Summary

Overview We are seeking an experienced developer to take ownership of our existing website built with Next.js, Sanity CMS, and Vercel. The site is already live and actively used, so this is not a redesign or rebuild project. Instead, we're looking for a long-term technical partner who can maintain, improve, and expand the website as our marketing and content needs evolve. What You'll Be Responsible For * Becoming familiar with and managing the current codebase * Collaborating with our design team to launch new pages and features * Enhancing site performance, scalability, and code quality * Creating reusable page layouts, components, and content modules * Supporting content publishing and blog management workflows * Implementing technical SEO improvements and best practices * Managing deployments and environments through Vercel * Advising on future website enhancements and technical direction Required Skills & Experience * Strong hands-on experience with Next.js * Advanced knowledge of React and TypeScript * Experience working with Sanity CMS * Familiarity with Vercel deployment workflows * Proven experience building and maintaining marketing-focused websites * Solid understanding of website performance optimization and SEO Preferred Qualifications * Experience integrating CRMs and marketing tools * Familiarity with analytics platforms such as GA4, PostHog, or similar * Experience supporting content-driven B2B SaaS websites Initial Project Scope During the first phase, you'll: * Review and assess the current website architecture * Identify opportunities for improvement * Take ownership of ongoing development and maintenance * Deliver new pages, templates, and enhancements Long-Term Opportunity We're looking for someone who can become the primary technical owner of the website and continue supporting future improvements, content initiatives, and marketing projects. When Applying, Please Include * Examples of websites you've maintained or inherited from previous developers * Details of your experience with Next.js and Sanity CMS * Your weekly availability and preferred working arrangement * Any relevant examples of marketing, SaaS, or content-focused websites you've worked on

  • $2,000.00

    Fixed-price
  • Intermediate
    Experience Level
  • Remote Job
  • Ongoing project
    Project Type
Skills and Expertise
Mandatory skills
JavaScript
React
HTML5
AngularJS
Activity on this job
  • Proposals:10 to 15
  • Last viewed by client:2 hours ago
  • Interviewing:
    1
  • Invites sent:
    1
  • Unanswered invites:
    0
About the client
Member since Oct 7, 2025
  • India
    12:38 AM

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
Three.js
JavaScript
WordPress
AR Plugin
WooCommerce
3D Modeling

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