Freelancers using JavaScript in San FranciscoFreelancers using JavaScript in San Francisco
ProjectsPeople
Nikol Hayes's avatar
Nikol Hayes
proSan Francisco, USA
AI Campaign Assets + Agents for DTC Growth
$100k+
Earned
21x
Hired
5.0
Rating
286
Followers
TOP_INDEPENDENT

Top

IDEOGRAM_EXPERT

Partner

+1
AI Campaign Assets + Agents for DTC Growth
Cover image for NFT Mint Telegram Bot
NFT Mint Telegram Bot
0
333
Cover image for SkyScribe Weather Telegram Bot
SkyScribe Weather Telegram Bot
1
156
Cover image for Crypto Luminary Web App
Crypto Luminary Web App
0
97
Cover image for Bliss Point: Engineering Craving with AI
Bliss Point: Engineering Craving with AI
0
46
JavaScript(3)
Priyanka Patel's avatar
Priyanka Patel
proSan Francisco, USA
Building intuitive experiences. From concept to launch
2x
Hired
5.0
Rating
53
Followers
MAGICPATH_EXPERT

Expert

TEMPO_LABS_EXPERT

Expert

Building intuitive experiences. From concept to launch
Cover image for Responsive Laundromat Website
Responsive Laundromat Website
1
11
Cover image for Built BARK & BUBBLE 🐾
Built BARK & BUBBLE 🐾 for the @Lovable challenge — a booking experience for a solo mobile dog groomer where scheduling isn’t just about finding an open time. The flow considers the dog, service time, location, and the van’s existing route to suggest smarter appointments. Customers can book and pay a deposit without the usual back-and-forth, while the owner’s schedule updates automatically. My favorite part: when a cancellation happens, the system checks the waitlist, finds the best route-friendly match, sends the offer, and fills the opening if they accept — without the owner having to chase anyone. From “Can I book my dog?” to “You’re booked.” 🐶🚐
1
111
Cover image for What if your family needed
What if your family needed critical information tomorrow and couldn't reach you? Family Vault uses AI to help families organize essential information, identify preparedness gaps, and stay ready before emergencies happen. Built with Figma Make. https://notice-decay-17883734.figma.site/
2
5
293
Cover image for Unlock Insights: Discover When Someone Last Thought of You
"Last Seen" What if you could see the last time someone thought about you? #RunwayBigPitchContest (https://www.linkedin.com/search/results/all/?keywords=%23runwaybigpitchcontest&origin=HASH_TAG_FROM_FEED)
0
253
JavaScript(1)
Sunday Moses's avatar
Sunday Moses
San Francisco, USA
Full-stack developer
19
Followers
Full-stack developer
Cover image for 🚨 “It works on my
🚨 “It works on my machine.” The developer's most dangerous sentence 😂 Your app works perfectly locally, then suddenly breaks in production. Before blaming the code, check: 🔹 Environment variables 🔹 Node.js versions 🔹 Database connection 🔹 API URLs 🔹 CORS configuration 🔹 Production build settings Local success ≠ production readiness. Always test your application in an environment as close to production as possible. What’s the funniest “works locally, breaks in production” bug you've faced? 👇
4
11
543
Cover image for 🚨 The API is returning
🚨 The API is returning 200… but your data is wrong? This can be harder to debug than a clear error. When I troubleshoot backend issues, I check: 🔍 Database queries 🔍 API request/response data 🔍 Authentication state 🔍 Backend logs 🔍 Frontend data handling A successful API response doesn't always mean the application is working correctly. Sometimes, the real bug is hiding in the data flow. Have you ever spent hours debugging a problem that turned out to be one small line of code? 😅
4
10
601
Cover image for Getting this error in Next.js?
Getting this error in Next.js? You’re not alone. Hydration failed because the initial UI does not match what was rendered on the server. This usually happens when your server-rendered HTML doesn't match what React renders in the browser. Common causes: • Using window or localStorage during server rendering • Rendering different content based on browser-only values • Incorrect date/time rendering • Invalid HTML nesting My first fix: Move browser-only logic into useEffect, or make the component client-side when necessary. 💡 Tip: Don't just hide the error. Find out why the server and client are rendering different UI. Have you encountered this error before? 👇
1
2
18
585
Cover image for Building digital products that solve
Building digital products that solve real problems. 🚀 Recently, I've been working on projects across mobile apps, user experiences, and digital products, turning ideas into functional experiences that people can actually use. I'm excited to keep building, learning, and collaborating with great people here on Contra. What are you building?
4
18
795
JavaScript(7)