Hire the Best API Developers Near Seattle

Toptal is a marketplace for top API developers. Top companies and startups in Seattle 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 Seattle 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.

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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.

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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.

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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.

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Michael Truog

Freelance API Developer
Verified Expert ​in Engineering
United States
Toptal Member Since April 4, 2016

Michael is a top architect, engineer, developer, and entrepreneur with a proven ability to develop efficient, scalable, and fault-tolerant server solutions for complex problems. He has extensive experience and skills with all levels of software and architecture.

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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.

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Marcus Young

Freelance API Developer
Verified Expert ​in Engineering
United States
Toptal Member Since June 19, 2024

Marcus is a senior engineering leader with 15+ years of overall experience and 7+ years of experience leading back-end software development. As a staff software engineer in the fintech industry, he focused primarily on building cloud-native distributed systems and AI/ML pipelines to facilitate loan origination, payments, and fraud detection. Having recently worked on LLM-backed systems, he is looking forward to tackling the challenges associated with deploying and supporting LLMs in production.

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Jay Brown

Freelance API Developer
Verified Expert ​in Engineering
United States
Toptal Member Since October 7, 2019

With over 25 years of software development experience, Jay has focused on designing and building enterprise back-end and mid-tier applications, protocols, and APIs for Fortune 1000 companies. He has multiple US patents, has authored the Manning book on Apache OpenCMIS API development, and has presented technical subjects at several IBM international conferences. Jay currently designs and builds distributed systems with Go for his various clients.

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Charles Grady

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

Charles is primarily a back-end developer specializing in Python. He has more than 16 years of experience developing RESTful APIs, high-throughput computations, and cluster interfaces in an open source environment. Charles published papers, gave conference presentations, and taught domestic and international workshops showcasing the tools he created, the community infrastructure, and his research projects.

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Ryan Felton

Freelance API Developer
Verified Expert ​in Engineering
United States
Toptal Member Since November 23, 2015

Ryan Felton is a Facebook Innovation Award-winning leader and a highly technical software developer specializing in Ruby on Rails. Ryan is also a veteran, an MBA graduate, a private pilot, and a passionate software entrepreneur who has led the software engineering of three businesses from concept to acquisition.

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Andrew Miller

Freelance API Developer
Verified Expert ​in Engineering
United States
Toptal Member Since September 24, 2018

Andrew has 30 years of web development experience with a focus on WordPress development since 2012, which includes custom plugins and theme development, API and data integrations, troubleshooting, malware removal, and migrations. With a deep understanding of the WordPress codebase, Andrew provides services to clients who require more than an off-the-shelf solution.

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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
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How to Hire API Developers Near Seattle

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.

Tap Into World-class Talent

  • Trusted Talent Only

    Trusted Talent Only

    All of our talent are seasoned professionals who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top API Developers Are in High Demand.

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