How quickly can you hire with Toptal?

Typically, you can hire UML developers with Toptal in about 48 hours. For larger teams of talent or Managed Delivery , timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network. Once you select your UML developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.

How do I hire UML developers?

To hire the right UML developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect UML developers for your project.

How are Toptal UML developers different?

At Toptal, we thoroughly screen our UML developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship. When you hire UML developers with Toptal, you’ll always work with world-class, custom-matched UML developers ready to help you achieve your goals.

Can you hire UML developers on an hourly basis or for project-based tasks?

You can hire UML developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire a UML developer for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our UML developers can fully integrate into your existing team for a seamless working experience.

What is the no-risk trial period for Toptal UML developers?

We make sure that each engagement between you and your UML 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 UML developer who may be a better fit and with whom we will begin a second, no-risk trial.

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View Michael

Michael Truog

Freelance UML Developer

Verified Expert in Engineering

UTC-08:00

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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Shane Freed

Freelance UML Developer

Verified Expert in Engineering

UTC-05:00

United States

Toptal Member Since April 9, 2021

Shane is a Java developer with 25 years of experience building enterprise apps and specializes in writing maintainable, extensible, SOLID code. While 95% of Shane's experience is in the Java realm, his passion is full-stack development with Angular. Shane's served in many different roles, including architect, team lead, lead developer, and individual contributor. While Shane doesn't always have to lead a project, his USMC background makes him perfect for lead roles and mentoring.

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Antonio Ricardo Leao de Almeida

Freelance UML Developer

Verified Expert in Engineering

UTC-03:00

Brazil

Toptal Member Since March 15, 2022

Antonio is an IT professional with over ten years of experience developing web solutions. He prefers using Java and Spring Boot when working on the back end and Angular for the front end. Antonio follows the Agile methodologies, especially Scrum, and has good communications skills.

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Piotr Poznanski

Freelance UML Developer

Verified Expert in Engineering

UTC+01:00

Poland

Toptal Member Since August 2, 2021

Piotr is a software developer, architect, and technical lead with 23+ years of experience working with CERN, Motorola Solutions, universities, and startups. He has led projects, served as CTO, a scrum master, and developed and delivered complex web and mobile solutions, including business and technical requirements, architecture, 3rd-party API integrations, data acquisition, and processing for BI. Piotr co-developed the pan configuration language and has a PhD in computer science.

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Paweł Gąsiorowski

Freelance UML Developer

Verified Expert in Engineering

UTC+01:00

Poland

Toptal Member Since January 25, 2021

Paweł is an experienced solution architect with broad technical and software development skills, able to solve the hardest problems thanks to his passion for mathematics. Every company he has worked for has experienced a significant change made by his work.

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Gokhan Yaliniz

Freelance UML Developer

Verified Expert in Engineering

UTC+03:00

Turkey

Toptal Member Since August 29, 2022

Gokhan is a talented software engineer, architect, and team lead with 10+ years of experience designing, coding, and testing complex software systems. His areas of expertise include full-stack application development, C/C++, Qt, QML, Linux, Python, JavaScript, software architecture, and computer vision. Gokhan worked on the application software development of embedded systems and developed in-house SaaS tools. He also loves automating processes.

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Karthikeyan Thirunavukarasu

Freelance UML Developer

Verified Expert in Engineering

UTC+05:00

India

Toptal Member Since September 28, 2021

Karthikeyan is a senior software engineer with 10+ years of enterprise-level experience, including Sony India and IBM. He has specialized in Java back-end development and worked with microservices and cloud technologies. Karthikeyan is also a Certified Smart Contract Developer and eager to bring his expertise and enthusiasm to blockchain development projects.

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Lindung Manik

Freelance UML Developer

Verified Expert in Engineering

UTC+07:00

Indonesia

Toptal Member Since June 25, 2021

Lindung has more than 15 years of professional experience in the (high) tech industry as a software developer, software engineering researcher, and software architect. He is also a polyglot programmer. His primary programming language is Java, but he can quickly learn any programming language and technology. To him, they are just tools to achieve the goals. As a pragmatist, Lindung can spot the required tools to accomplish objectives fast.

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Lucas Mancini

Freelance UML Developer

Verified Expert in Engineering

UTC+10:00

Australia

Toptal Member Since July 20, 2015

Lucas is a software engineer specializing in front-end and mobile app development with over a decade of experience. He has taken on various roles in his career, including managing greenfield projects, leading diverse teams, and working for startups and corporations in stealth mode. He has also contributed to open-source repositories. Lukas's skill set encompasses excellent communication abilities and proficiency in Agile methodologies, and his knowledge is backed by a computer science degree.

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Carl Humphries

Freelance UML Developer

Verified Expert in Engineering

UTC+10:00

Australia

Toptal Member Since July 8, 2021

Carl is a full-stack developer with five years of experience and an extensive understanding of all things computer science. As a passionate and focused individual, Carl is driven by goal setting and organization. Carl prides himself on developing software with a meaningful user experience that benefits their lives. With his love for technology and a joyful attitude towards learning something new, Carl joined Toptal to find projects where he can help to create something new and exciting.

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Tony Cooper

Freelance UML Developer

Verified Expert in Engineering

UTC+12:00

New Zealand

Toptal Member Since January 28, 2021

Tony has been developing software before he had facial hair, but it only became the main function of his career in 1997 while working in counterintelligence. Over the next 23 years, he's been involved in a large variety of projects run in quite diverse management styles. Tony started his own company in 2011, so he could work for two main clients while taking on a number of small contracts and freelance work.

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THE TOPTAL ADVANTAGE

98% of Toptal clients choose to hire our talent after a risk-free trial.

Toptal's screening and matching process ensures exceptional talent are matched to your precise needs.

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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

Leading a digital transformation

Building a cross-platform app to be used worldwide

Drilling into real-time data creates an industry game changer

Testimonials

Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of Tripcents as any in-house team member of Tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.
Brantley Pace
CEO & Co-Founder

How to Hire UML Developers Through Toptal

Talk to One of Our Client Advisors

A Toptal client advisor will work with you to understand your goals, technical needs, and team dynamics.

Work With Hand-selected Talent

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

The Right Fit, Guaranteed

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

EXCEPTIONAL TALENT

How We Source the Top 3% of UML Developers

Our name “Toptal” comes from Top Talent—meaning we constantly strive to find and work with the best from around the world. Our rigorous screening process identifies experts in their domains who have passion and drive.

Of the thousands of applications Toptal sees each month, typically fewer than 3% are accepted.

Start Hiring Today

STEP 1

Language and Personality Evaluation

26.4% of applications pass

The first step of the screening process is a comprehensive English language and communication evaluation. We also assess personality traits, seeking only those who are passionate and fully engaged in their work.

STEP 2

In-depth Skill Review

7.4% of applications pass

We test each applicant’s technical knowledge and problem-solving ability through various assessments. Every member of the Toptal network is an expert in their domain, and we typically only advance candidates with exceptional results in this phase.

STEP 3

Live Screening

3.6% of applications pass

Toptal screeners, who are experts in their functional domain, interview each UML developer. Our screeners provide specific live exercises, looking for problem-solving ability, depth of experience, communication ability, and creativity.

STEP 4

Test Project

3.2% of applications pass

Each candidate is assigned a test project to evaluate whether they can “walk the walk.” Test projects take 1-3 weeks and are comprehensive and provide real-world scenarios for candidates to demonstrate their competence, thoroughness, professionalism, and integrity.

STEP 5

Continued Excellence

Top 3.0% of UML developers

As a quality-first company, we demand the best from our talent, so they can deliver the best to our clients. This principle permeates every Toptal engagement and delivered project. Only the top 3% of developers can consistently perform at this level.

FAQs

How quickly can you hire with Toptal?
Typically, you can hire UML developers with Toptal in about 48 hours. For larger teams of talent or Managed Delivery, timelines may vary. Our talent matchers are highly skilled in the same fields they’re matching in—they’re not recruiters or HR reps. They’ll work with you to understand your goals, technical needs, and team dynamics, and match you with ideal candidates from our vetted global talent network.

Once you select your UML developer, you’ll have a no-risk trial period to ensure they’re the perfect fit. Our matching process has a 98% trial-to-hire rate, so you can rest assured that you’re getting the best fit every time.
How do I hire UML developers?
To hire the right UML developer, it’s important to evaluate a candidate’s experience, technical skills, and communication skills. You’ll also want to consider the fit with your particular industry, company, and project. Toptal’s rigorous screening process ensures that every member of our network has excellent experience and skills, and our team will match you with the perfect UML developers for your project.
How are Toptal UML developers different?
At Toptal, we thoroughly screen our UML developers to ensure we only match you with the highest caliber of talent. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut.

In addition to screening for industry-leading expertise, we also assess candidates’ language and interpersonal skills to ensure that you have a smooth working relationship.

When you hire UML developers with Toptal, you’ll always work with world-class, custom-matched UML developers ready to help you achieve your goals.
Can you hire UML developers on an hourly basis or for project-based tasks?
You can hire UML developers on an hourly, part-time, or full-time basis. Toptal can also manage the entire project from end-to-end with our Managed Delivery offering. Whether you hire a UML developer for a full- or part-time position, you’ll have the control and flexibility to scale your team up or down as your needs evolve. Our UML developers can fully integrate into your existing team for a seamless working experience.
What is the no-risk trial period for Toptal UML developers?
We make sure that each engagement between you and your UML 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 UML developer who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-class Talent

Trusted Talent Only
Our talent are thoroughly vetted professionals who ramp up quickly, function as essential team members, and deliver results.
Precise Matching
Our experienced talent matchers specialize in pairing you with the right fit. They work to understand exactly what you need and hand-select the best professionals for your project.
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
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
Scale your team up or down as needed, with quick and efficient hiring in under 48 hours.
Flexible Engagements
Choose the engagement type that suits your needs—hourly, part-time, or full-time— and enjoy the flexibility to adjust as needed.