Core Java

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 startups choose Toptal Core Java freelancers for their mission-critical software projects.

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Hire Freelance Core Java Developers and Engineers

Martin Redmond

Freelance Core Java Developer
United StatesToptal Member Since January 16, 2023

Martin is a cross-functional executive with expertise in risk management and process improvement, data privacy laws, cyber security products, security program leadership, IT Ops, cloud computing and migration, digital transformation, product, service, innovation management, mobility, big data analytics, DevSecOps, ITILv4, SOC, fraud, APT, forensic, malware, IIoT, CoT and contract and vendor negotiations. Martin has also experience in achieving compliance with multiple risk management frameworks.

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Doug Sparling

Freelance Core Java Developer
CanadaToptal Member Since January 26, 2015

Doug is driven by a need to improve himself, his colleagues, and the products they build. He has experience with many web, back-end, and mobile platforms, most prominently those that are Java-based, such as JVM or Android. Doug's comfortable working at multiple levels at once, from twiddling bits on the wire or providing technical guidance to teams and C-suites alike.

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Daniel Campos

Freelance Core Java Developer
CanadaToptal Member Since February 11, 2015

Daniel is a full-stack software engineer with 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 the cloud—particularly the AWS environment. Daniel is a driven individual, a team player, an enthusiastic learner, and, most importantly, a passionate professional.

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Debadutta Panda

Freelance Core Java Developer
CanadaToptal Member Since June 20, 2023

Debadutta is a seasoned professional with 17 years of expertise in Adobe Experience Manager and application development. With Agile certification and vast experience in banking and financial services, he excels in crafting robust architectures, leveraging Java, and optimizing core frameworks. Combining diligence and adaptability, Debadutta consistently drives towards organizational goals.

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Muzammil Husnain

Freelance Core Java Developer
United StatesToptal Member Since May 30, 2023

Muzammil is a skilled and responsible developer who excels in crafting complex applications and brings a wealth of experience. His expertise spans diverse technical and business domains, honed over eight years. He values effective communication, organization, and collaboration and thrives in team environments. Muzammil embraces challenges and utilizes his creativity to discover innovative solutions and tackle challenges head-on.

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Constantin Michael Weisser

Freelance Core Java Developer
BrazilToptal Member Since November 15, 2022

Michael is a DevOps engineer and consultant who has worked as a developer, architect, team lead, and consultant for the last seven years. Specializing in automation engineering, continuous delivery, QA automation, and infrastructure engineering, he is passionate about building great products with great teams using modern technology. Michael is a methodic problem solver, experienced in managing trade-offs and building efficient and future-proof solutions.

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Huzefa Gadi

Freelance Core Java Developer
IndiaToptal Member Since May 2, 2023

Huzefa is a hands-on technology leader and programmer specializing in full-stack development using ReactJs, Flutter, Node.js, and Android. As a back-end and mobile engineer, he has 12 years of experience in startups and high-paced engineering environments. Huzefa excels in managing engineering teams, driving multiple successful product launches, and delivering solutions on time and within budget.

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Julius Pabular

Freelance Core Java Developer
PhilippinesToptal Member Since April 17, 2023

Julius is an accomplished lead Java developer and engineering manager with expertise in Java back-end development. He has 19+ years of experience delivering innovative and efficient software solutions and a proven ability to design, develop, and maintain robust and scalable software applications in various industries, including finance, banking, healthcare, travel, consulting, and eCommerce. Julius is an expert in coding RESTful APIs and web services, code reviews, mentoring, and agile delivery.

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Aleks Krause

Freelance Core Java Developer
EstoniaToptal Member Since November 11, 2022

Aleks is an energetic and curiosity-driven Android and Flutter developer with 5+ years of experience writing top-quality clean code for high-paced businesses. In previous roles, he has worked on the Estonian COVID-19 tracking app with 100,000+ downloads and the Itella Estonian post-office application, which helps users process millions of parcels a year. Aleks is also an instructor at Udemy, teaching advanced Android development, and he loves creating beautiful applications that scale.

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I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

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The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

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Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

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Co-Founder

As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

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Principal

How to Hire Core Java Developers Through Toptal

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 Core Java developer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

Find Experts With Related Skills

Access a vast pool of skilled developers in our talent network and hire the top 3% within just 48 hours.

FAQs

  • How are Toptal Core Java developers different?

    At Toptal, we thoroughly screen our Core Java developers to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire Core Java developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a Core Java developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal Core Java developers?

    We make sure that each engagement between you and your Core Java developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts 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.

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