Hire the top 3% of freelance Core Java developers.

Toptal is a marketplace for top Core Java developers, engineers, programmers, coders, architects, and consultants. Top companies and start-ups choose Toptal Core Java freelancers for their mission critical software projects.
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Hire Core Java developers and engineers

Doug Sparling, Thailand

Member since January 6, 2015
Doug is driven by a desire to continuously improve himself, his colleagues, and the products they build. He has almost ten years of experience between the JVM platform and Ruby, and has also worked on an Android app that now serves thousands of customers. He believes in picking the best tool for the job, has a great sense of humor, and prides himself on writing code and documentation equally well. Click to continue

Jonathan Peterson, United States

Member since November 17, 2014
Jon has over twenty years of professional development experience. For the last ten years or so, he's been concentrating on server-side Java, working remotely with small companies, over the full stack. He's a co-founder of a successful software-as-a-service company, IndieMade, and has managed tech teams large and small. He has a BA in computer science from Cornell University and an MSCS from the University of Massachusetts. Click to continue

Andrey Melentyev, Russia

Member since October 12, 2012
Andrey specializes in the design and development of large-scale systems using Java EE, Scala/Play, and Node.js. He has worked for clients in the telecommunications, insurance, and finance industries. He is familiar with software development methodologies and SDLC fundamentals. He is comfortable leading projects from the gathering of requirements to deployment of the product. Click to continue

Daniel Campos, Brazil

Member since December 30, 2014
Daniel is a full-stack software engineer with seven years of extensive experience designing and implementing large-scale web-based applications using Java and JavaScript. Lately, he's been working mainly in a Microservices Architecture leveraging the power of Cloud, in particular, the AWS environment. He is a driven individual, a team player, an enthusiastic learner, and most importantly, a passionate professional. Click to continue
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“We have been with Toptal for over two years and have hired through them multiple times. They've never failed to deliver with world-class talent and customer service and have been our first choice when scaling our team.”
Stuart Reavley
Product Lead @ ClassDojo
“Toptal developers deliver. Hiring my first developer on Toptal was such a pleasant experience that I quickly turned around and hired another. Every developer I've hired on Toptal has been professional, skilled, and self-managing—a pleasant departure from the typical freelancer marketplace.”
Mike Riess
Owner @ RiessGroup
“I needed help, and fast. I did not want to hire a random coder I met online- I was worried about security, and many other issues. Toptal was there when I needed them- and has been fantastic to work with. Outsourcing is full of terrible stories- Toptal is the story that is the giant exception. I give them my highest recommendation.”
Michael Feder
Founder & CEO @ PrayerSpark
“My business relationship with Toptal has been nothing short of terrific. From reviewing my project with their team to choosing a highly-talented developer, and all the way through releasing our application, it has been an incredibly smooth and successful experience.”
Gary Craig
Senior Analyst @ NetApp
“Andrea is doing an amazing job. I don't think we could have gotten a better person. He is fun to work with, he thinks out of the box, and he is extremely knowledgeable in what he is going. He not only does an excellent job, he also helps our company to differentiate our business model further (e.g. making our app offline-capable). I would recommend Andrea as well as Toptal any time to any friend.”
Pascal Girardat
Co-Founder / CEO @ Lifestage Solutions AG
“It has been wonderful to work with Fabian for the past two years. He is an expert in JavaScript development and has built our embeddable widget and video player. He is a quick study and is able to learn how to integrate new technologies, which is so critical for a startup. He even took the extra effort to teach others on the team. He is super responsive and often went above and beyond to help us meet deadlines (including working on weekends). Thank you Fabian. Thank you Toptal for making it so easy to find and work with amazing talent.”
Natasha Mohanty
CTO @ FEM Inc
“Our experience with Toptal was very good. We had an open ended development project when we got started and the programmer from Toptal was very helpful, working with us on everything from the top level outline all the way down to development and delivery of functioning code." ”
Michael Milton
VP of Engineering @ SLANTRANGE
“We really enjoy working with Toptal. The experience has been very positive, and we'd recommend it to anyone seeking developers on-demand.”
Jeff Kerr
CEO @ CaseFleet
“Dario was recently assigned to our company in order to help with PHP and JW Video player refinements. He listens extremely well and offers common sense suggestions that save both time and money. He speeds up the process by asking great questions, and he just delivered our first project on time. His redesigned player offers a very pleasing appearance and delivers functions that are both elegant and intuitive.”
Dennis B. Jacobs
President @ College TV Ticket
“We're a small firm with big dreams. After trying 4 or 5 local or outsourced developers, we were out of options. I'd heard of Toptal, but was worried that my company wasn't big enough for them. After calling them up, I found out that I didn't need to meet any minimum budget and was immediately put in touch with a developer to talk through my problems and goals. A day later, he got back to me with a list of possible solutions. After 9 months and 5 developers, Toptal got me my solution in a single week at a price I could afford.”
Kevin Ramirez
Co-Founder @ SixtyVocab.com
“Toptal helped us when we had a hiring gap we needed to fill. The developer we received was excellent, with a great work ethic and fit in very well with the team. We are very happy with the service and would definitely consider using Toptal again in future should we need additional help. ”
David Gildeh
CEO @ Dataloop.io
“Toptal has helped my business tremendously by finding, vetting, and recruiting the talent I need, at the right time. I’d definitely recommend it to others.”
Xavier Xicay
CEO & Creative Director @ Tuatara Corp
“I really enjoyed my experience with Toptal. Searching for a developer was both painless and engaging, and the first match was a perfect fit! Toptal is a fantastic way to find talented developers for small or large aspects of your project.”
Willem Shepherd
Creative Director @ Mookieyams
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VP of Talent Operations