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Top OpenAPI freelancers

272 freelancers list OpenAPI on Upwork.

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Showing 50 of 272Data updated Nov 7

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Freelancer
Since
1
Cassiano F.
Expert-Vetted
Cassiano F. 🇧🇷

Technical Writer | SaaS, Help Center, Knowledge Base, API Docs

$14k↑ 1%Jul 2020
2
Hamza Z.
Top Rated Plus
Hamza Z. 🇵🇰

Sr. Full Stack Vue.js | Nuxt | React | PHP Laravel | Node.js Developer

$12k↓ 1%Mar 2019
3
Roberto E.
Top Rated Plus
Roberto E. 🇦🇷

Back end micro services designer and developer (Linux FastAPI Python)

$8k↑ 3%Jan 2009
4
Snehal S.
Top Rated Plus
Snehal S. 🇮🇳

Senior Full Stack AI Engineer, React and Python

$7k↑ 3%Jun 2008
5
Deepshikha S.
Top Rated Plus
Deepshikha S. 🇮🇳

Senior Full-Stack AI Engineer, React and Python

$7k↑ 2%Oct 2008
6
Ankit K.
Top Rated Plus
Ankit K. 🇮🇳

Laravel, React, Vue & Next.js Developer | SaaS + AI Automation

≈$6k–Apr 2016
7
Talha M.
Top Rated Plus
Talha M. 🇵🇰

Full stack AI developer | AI Agents | LLM Apps | RAG | GHL | Python

$6k↓ 3%Sep 2022
8
Ayza H.
Top Rated Plus
Ayza H. 🇵🇰

AI/ML Engineer | GHL | LangChain | Automation, AI Agents & Voice AI

$5k↑ 5%Aug 2020
9
Omer F.
Top Rated Plus
Omer F. 🇦🇪

Technical Writer | API & Help Center Documentation | AI & Automation

$5k↑ 20%Dec 2011
10
Saad S.
Top Rated Plus
Saad S. 🇵🇰

Creative & Technical Writer - API Documentation & User Manuals

$4k↑ 3%Apr 2021
FreelancerMRRMember since
11
Ali A.
Top Rated Plus
Ali A. 🇵🇰

Full Stack Developer | React.js, Next.js, Node.js & App Developer

$4k↓ 11%Mar 2022
12
Muhammad Rasheed M.
Top Rated Plus
Muhammad Rasheed M. 🇵🇰

Senior React & Full Stack Developer | React Native | Next.js | 10yrs+

$4k↑ 11%Feb 2022
13
Sachin B.
Top Rated Plus
Sachin B. 🇮🇳

SaaS Developer | Fullstack SAAS Developer_React/Next+Supabase_SAAS CRM

$4k0%Jun 2021
14
Rishabh S.
Rishabh S. 🇮🇳

AI Agents & Automation Expert | Python Development

$3k↑ 8%Jun 2015
15
Rohit C.
Top Rated Plus
Rohit C. 🇮🇳

Senior .NET & AI Engineer | Healthcare, HL7, FHIR & EHR/EMR

$3k↑ 10%Dec 2015
16
Abdullah A.
Top Rated Plus
Abdullah A. 🇵🇰

SaaS & AI Web App Developer | AI Specialist | Django - React - Azure

$3k↑ 15%Jun 2020
17
Chintan M.
Top Rated Plus
Chintan M. 🇮🇳

Fullstack Web Developer | Laravel Expert | 8+ Years of Experience

$3k↑ 3%Mar 2020
18
Shweta  R.
Top Rated
Shweta  R. 🇮🇳

Backend & AI Engineer | LMS & EdTech | Node.js | Python | Golang | AWS

$3k↑ 14%Aug 2024
19
Abubakar I.
Top Rated Plus
Abubakar I. 🇬🇭

Full Stack Developer, Vibe-Coding Engineer, Bubble No Code

$3k↑ 3%Mar 2022
20
Ishtiaq A.
Top Rated Plus
Ishtiaq A. 🇵🇰

Senior Full Stack Developer | AI SaaS & MVPs | Next.js, Laravel

$2k–May 2024
FreelancerMRRMember since
21
Waqar A.
Top Rated
Waqar A. 🇵🇰

Backend Architect |Node.js, Python | Blockchain | AI-Driven System

$2k↑ 2%Jun 2010
22
Gurmukh S.
Top Rated Plus
Gurmukh S. 🇮🇳

AI Mobile & Web Apps |OpenAI/RAG/FastAPI/Python/SaaS

$2k–Jan 2009
23
Himanshu B.
Top Rated Plus
Himanshu B. 🇮🇳

Sr. Full-Stack Developer | Python | Node.js | AI/ML, RAG, LLM, Bedrock

$2k↓ 10%Feb 2021
24
Jagtar S.
Top Rated Plus
Jagtar S. 🇮🇳

Mobile App Development | UI/UX Design | iOS & Android | AI Integration

$2k↑ 14%Mar 2023
25
Justin M.
Top Rated Plus
Justin M. 🇺🇸

Senior .NET Architect (Azure | Power Platform | React | AI/ML)

≈$2k–Sep 2025
26
Amandeep K.
Top Rated
Amandeep K. 🇮🇳

AI Agent Engineer | Python, OpenAI, Claude, RAG & FastAPI

$2k↑ 5%Jan 2024
27
Jonathan G.
Jonathan G. 🇮🇱 New

Knowledge Base, Content, and Technical Writer

$2k↓ 13%Apr 2026
28
Muhammad W.
Top Rated Plus
Muhammad W. 🇵🇰

Full-Stack AI Engineer | AI Agents, RAG Systems & SaaS Platforms

$2k↓ 12%Dec 2016
29
Mousum B.
Top Rated Plus
Mousum B. 🇮🇳

Technical Writer | SaaS, API Docs, Help Center & Knowledge Base

≈$2k–Dec 2017
30
Pratham M.
Top Rated Plus
Pratham M. 🇮🇳

Senior Full Stack Developer | React.js, Next.js, Node.js | AI & SaaS

$2k↓ 7%Dec 2018
FreelancerMRRMember since
31
Sunil S.
Top Rated
Sunil S. 🇮🇳

LMS Specialist | Moodle Developer | Laravel | SaaS Dashboard Developer

$2k↓ 1%Oct 2013
32
Muhammad T.
Top Rated
Muhammad T. 🇵🇰

Full Stack Ai Engineer Python Django/FastAPI+React SaaS Platform 10M+

$2k↓ 4%Sep 2022
33
Mayank C.
Top Rated Plus
Mayank C. 🇮🇳

AI/ML Developer | Python, RAG, LLM, Automation, GPT-4, AWS, GenAI

$2k↑ 17%Apr 2024
34
Hamdan W.
Top Rated Plus
Hamdan W. 🇵🇰

AI Engineer | GPT, LLM & AI Automation Specialist

$2k↓ 21%Apr 2024
35
Mark M.
Top Rated
Mark M. 🇨🇦

Lead Gen Specialist | GHL, n8n | Claude, | Instantly, Email

$2k↓ 9%May 2025
36
Vinayak S.
Top Rated Plus
Vinayak S. 🇮🇳

AI/ML Engineer | Full-Stack, AI Agents, n8n & RAG, Claude, Python, AWS

$1k↑ 4%Sep 2025
37
Jason K.
Rising Talent
Jason K. 🇺🇸 New

Senior Full Stack Developer | AI & Backend Developer | DevOps

≈$1k–Jun 2026
38
Tan N.
Top Rated
Tan N. 🇻🇳

Senior Full-Stack Engineer | AI Solutions & Performance Architecture

$1k↑ 33%Jul 2021
39
Nasirkhan P.
Top Rated
Nasirkhan P. 🇮🇳

AI Full-Stack Developer | AI Automation | SaaS | AI Integration

$1k↓ 12%Jun 2024
40
Hamza B.
Top Rated
Hamza B. 🇵🇰

AI Automation~Retell AI~n8n & Workflow Specialist~Make | Zapier | API

$1k↑ 47%Sep 2024
FreelancerMRRMember since
41
Shivam S.
Top Rated
Shivam S. 🇮🇳

AI Solutions Architect & Full-Stack Developer | React Native, Node.js

$1k↓ 14%Sep 2017
42
Hafiz Muhammad  N.
Top Rated
Hafiz Muhammad  N. 🇵🇰

Full-stack AI Automation, Voice Agents, GHL, Claude, CRM, Make, n8n

$1k↓ 22%Nov 2025
43
Ivan K.
Top Rated Plus
Ivan K. 🇺🇦

Full-stack JS, PHP, MySQL, API development and integration

$1k↓ 2%Apr 2021
44
Junaid  A.
Top Rated
Junaid  A. 🇵🇰

Full Stack AI Developer | Python | AI Agents | SaaS | LLMs

$1k↑ 15%May 2024
45
Sumith S.
Top Rated Plus
Sumith S. 🇮🇳

AI ML Engineer | LLM, NLP | LangChain, Generative AI, RAG, CV |8+ year

$1k↓ 29%May 2018
46
Habib U.
Top Rated Plus
Habib U. 🇵🇰

Expert AI | MVP | SaaS | Full Stack Developer | AWS Solution Architect

$985↓ 1%Aug 2018
47
Rakeshkumar P.
Top Rated Plus
Rakeshkumar P. 🇮🇳

Mobile, Web, AI/ML | Claude Certified Developers | AI Agents, MCP

$960–Sep 2010
48
Shahab U.
Top Rated Plus
Shahab U. 🇵🇰

Senior Backend & API Platform Engineer

$941↑ 19%Nov 2019
49
Abdelrahman R.
Top Rated
Abdelrahman R. 🇪🇬

Technical Writer & Docs Engineer | API Docs, SEO/ AEO for SaaS & B2B

$901↓ 6%Jul 2021
50
Abdelilah N.
Top Rated
Abdelilah N. 🇲🇦

Software Engineer | AI Applications Developer | Azure Consultant

≈$829–Oct 2021
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