Hire the Best API Developers Near San Francisco

Toptal is a marketplace for top API developers. Top companies and startups in San Francisco choose Toptal API freelancers for their mission-critical initiatives.

No-Risk Trial, Pay Only If Satisfied.

Trusted by leading brands and startups

Hire API developers near San Francisco or in a similar time zone

Haitham Gad

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since July 15, 2022

Haitham is a technical leader with over 15 years of experience building products and services for several enterprises. Before starting his AWS consultancy, he spent over five years at AWS, where he helped build Amazon GuardDuty, AWS's intelligent threat detection and security monitoring service. Haitham's work was instrumental in accelerating GuardDuty's adoption by thousands of AWS customers like Snap, HBO Max, Siemens, Volkswagen, and Southwest Airlines.

Show More

Doug Headley

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since December 30, 2025

Doug is a senior software engineer specializing in secure system design, full-stack development, and automation. He is an expert in crafting robust security architectures, developing scalable APIs, and guiding data-intensive solutions to optimize operations and boost efficiency. With extensive experience in modern DevOps, cloud infrastructure, and application security, Doug is proficient in converting complex business requirements into secure, sustainable, and high-impact solutions.

Show More

Chinedu Isaiah

Freelance API Developer
Verified Expert in Engineering
Canada
Toptal Member Since March 1, 2022

Chinedu is a full-stack developer with over three years of experience working on various front-end and back-end technologies. He specializes in front-end technologies such as Angular, React, HTML CSS, JavaScript, and TypeScript. Chinedu also has experience working at the back end with the Spring framework using Java, Node.js, and ASP.NET.

Show More

Ethan Millstein

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since November 1, 2024

Ethan is a lead software developer with over seven years of experience building startups and new products. Specializing in React Native, Vue, and Node.js, he has successfully launched mobile apps and full-stack solutions for industries ranging from fintech to real estate. Ethan combines strong technical expertise with a deep understanding of product strategy and has a proven track record of delivering impactful solutions for clients and businesses.

Show More

Ivan Novak

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since February 2, 2022

Ivan is a technical founder, principal engineer, and solution architect with 20 years of experience. He has participated in and founded multiple startups and is familiar with the highest highs and lowest lows that owners go through. Recently, he helped grow a startup from a $4 million to $87 million valuation in three years with a successful Series A round. Ivan's in-depth understanding and strategic approach have enabled him to deliver numerous products.

Show More

Ryan Ramchandar, P.Eng.

Freelance API Developer
Verified Expert in Engineering
Canada
Toptal Member Since May 24, 2023

Ryan is a senior Flutter developer with 15+ years in app development who excels in crafting visually appealing, user-friendly mobile apps. Passionate about UI/UX, his computer engineering background has contributed to numerous successful app launches. Ryan's blend of technical skills and design expertise make him a top choice for companies seeking a skilled Flutter developer.

Show More

Taylor Clifton

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since July 26, 2022

Taylor is a senior full-stack web developer with over 10 years of experience developing various web applications and websites for multiple clients. He has begun his development career in the industry and has worked in diverse environments, from large teams with established products to smaller startups in the early stages of development. Taylor transitioned to working as a freelance web developer about eight years ago and now works with multiple clients and teams on various exciting projects.

Show More

Pedro Solá

Freelance API Developer
Verified Expert in Engineering
Mexico
Toptal Member Since May 23, 2022

Pedro is an experienced full-stack engineer and tech lead. He is very comfortable in the fast-paced world of startups and consulting. Pedro has worked on everything, from building prototypes to systems design, scaling platforms, and handling large-scale data migrations. From back end, front end, or mobile, he's done it all.

Show More

Cesar Rosales

Freelance API Developer
Verified Expert in Engineering
Mexico
Toptal Member Since October 24, 2025

Cesar is a QA automation engineer with experience in release management and regression testing. Highly skilled in Cypress, proficient in Selenium (Java) and Playwright, he has working knowledge of Ruby-based Selenium automation. With his extensive experience in the iOS Flutter automation framework, Cesar will be a valuable addition to any team.

Show More

Steve Johnson

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since May 13, 2022

Steve has worked in tech for 10 years, with 8 years of full-stack startup engineering experience. He has created AI, education, recruiting, bike-sharing, marketing, and sales software that millions of people have used. Steve loves delivering digital products that unlock value and reduce costs.

Show More

Alex Katkova

Freelance API Developer
Verified Expert in Engineering
United States
Toptal Member Since July 13, 2022

Alex is a senior Ruby on Rails developer with extensive experience building APIs, working with and extending 3rd-party integrations, and building proof-of-concept software. Alex is pragmatic and detail-oriented, leverages the right tools for the job, and delivers projects on time.

Show More

Discover More API Developers in the Toptal Network

Start Hiring

A Hiring Guide

Guide to Hiring a Great API Developer

API developers are experts in crafting virtual bridges that enable the smooth flow of data between disparate systems. This guide to hiring API developers features best practices for the hiring process, job description tips, and interview questions and answers that will help you identify the right candidates for your company.

Read Hiring Guide
Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
Creating an app for the game
Leading a digital transformation
Leading a digital transformation
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Drilling into real-time data creates an industry game changer
Testimonials

How to Hire API Developers Near San Francisco

1

Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right API developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

Work with your new API developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.

Toptal Lets You Hire Fast,
With Unparalleled Success

  • Trusted Talent Only

    Trusted Talent Only

    Our talent network is composed of thoroughly vetted professionals who ramp up quickly, function as essential team members, and deliver results.

  • Precise Matching

    Precise Matching

    Our experienced talent matchers specialize in identifying talent that fits your needs. They work to understand your exact requirements and hand-select the best professionals for your project.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDAs, streamlining the hiring process so you can focus on innovation, not overhead.

  • No-risk Trial Period

    No-risk Trial Period

    We want to be sure your engagement is a total success, so we offer a no-risk trial period. Work with your new hire for up to two weeks and pay only if you’re satisfied.

  • Effortless Scaling

    Effortless Scaling

    We help you scale your team up or down as needed, with quick and efficient hiring in under 48 hours.

  • Flexible Engagements

    Flexible Engagements

    Our flexible engagement models allow you to choose the engagement type that suits your needs and adjust it anytime: hourly, part time, or full time.

Top API Developers Are in High Demand.

Start Hiring