Application Services

Application Services –
Build Scalable and Secure Digital Solutions

Strengthen and modernize your digital capabilities with Toptal’s Application Services. Our teams of world-class engineers and architects design and deliver cutting-edge apps that fuel growth and give you a competitive edge.

Get a Free Consultation Now

Clients Served

30,000+

Total Vetted Professionals

20,000+

Toptal Total Projects Delivered

85,000+

Years in Business

15+

TRUSTED BY LEADING BRANDS

Our Services

Toptal Application Services

Our application services cover everything from strategy and development to optimization and support. We deliver secure, scalable solutions designed to meet your business goals and adapt as your needs evolve.

Application Strategy

Define your vision with a clear application roadmap that drives scalability, agility, and measurable business results.

Application Development

Build high-performing applications with custom features that meet your business needs and user expectations.

Application Modernization

Transform legacy apps into flexible, future-ready solutions that reduce costs and boost efficiency.

Application Integration

Connect systems seamlessly to streamline workflows, improve data visibility, and enhance user experiences.

Application Testing

Ensure reliability with rigorous testing that detects issues early, improves quality, and speeds delivery.

Application Deployment

Launch applications with a smooth deployment process that reduces risk and ensures stability.

Application Maintenance

Optimize performance with continuous monitoring, updates, and enhancements to keep apps running smoothly.

Application Security

Safeguard your business with proactive measures that secure sensitive data, protect users, and ensure system integrity.

Application Support

Resolve issues quickly with experienced and responsive support teams that keep your applications running with minimal disruption.

Mobile Application Development

Create engaging mobile apps that deliver seamless user experiences across iOS and Android.

Cloud Application Services

Build cloud-native applications that scale effortlessly, improve agility, and reduce operational costs.

Application Performance Optimization

Enhance speed and responsiveness with performance tuning that improves efficiency and boosts user satisfaction.

Looking for guidance about the perfect application service for your needs?

Get a Free Consultation Now

PARTNERSHIP THAT WORKS

How We Deliver Application Services

Our application experts, with experience at leading companies, develop and deploy tailored solutions to meet your business needs and unique industry demands for sustainable results and long-term success.

Discover

A leader from our team works with you to understand your business challenges, pain points, and strategic goals to uncover new opportunities and identify the options to reach your objectives.

Define

Toptal leaders collaborate with your team to define your specific goals and service needs, evaluating multiple approaches and aligning requirements with your strategic objectives to define the best solution.

Develop

We will create your unique project timeline, process, and initial proposals, whether you’re optimizing application performance or developing a new solution.

Deploy

Toptal will get to work, tracking quality assurance, handling project management, and maintaining the delivery schedule.

Get a Free Consultation Now

Robert Orshaw

CEO, Technology Services

As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 100 manufacturers.As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 100 manufacturers.

Previously At

CUSTOMIZED SOLUTIONS

Application Solutions That Drive Impact

Toptal delivers leading application services through its diverse talent network and flexible delivery models. We implement the right skills at each project phase, blending expertise from various roles for seamless execution.

End-to-End Delivery by Toptal
On-demand Talent and Teams

End-to-End Delivery by Toptal

Comprehensive project delivery, tailored to your specific requirements.

CEO, Technology Services

Delivery Manager

Solutions Architect

Senior Systems Engineer

Product Manager

Mobile Application Expert

Application Developer

Full-stack Developer

Robert Orshaw

CEO, Technology Services

Previously at

Technology Experience

35+ Years

Rachael Karaffa

Delivery Manager

Rachael serves as a Delivery Manager at Toptal with a focus on leading diverse global teams in developing innovative solutions for our clients. She works across multiple disciplines, including technology, marketing, and management consulting. Rachael specializes in managing people and client relationships, process optimization, and driving teams toward optimal business outcomes.

Previously Managed Client

Experience

9+ Years

Piotr Poznanski

Verified Expert in Engineering

23+ Years

of Experience

Solutions Architect

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

Previously at

Mustafa Kubilay Yalniz

Verified Expert in Engineering

28+ Years

of Experience

Senior Systems Engineer

Mustafa has more than 28 years of experience in systems and software deployed on Linux platforms. He has extensive scripting/coding experiences both as a systems and software engineer.

Previously at

Elena Grigoras

Verified Expert in Product Management

11+ Years

of Experience

Product Manager

Elena is a success-driven visionary with 11+ years of hands-on IT development and leadership experience. She has managed several large cross-functional teams with ownership across multiple development hubs. She has also managed cutting-edge SaaS platforms, end-to-end BPM applications, process automation tools, and API integrations. Elena possesses a wealth of experience, knowledge, and team-building skills in the vision and execution of IT products and solutions.

Previously at

Mehul Dhorda

Verified Expert in Engineering

11+ Years

of Experience

Mobile Application Expert

Mehul is a full-stack engineer with more than 11 years of professional experience, specializing in iOS development for the last seven years. He has led consumer-facing projects impacting millions of Uber, BlackBerry, and Bolt users. His professional background includes working with various technologies, including iOS, web, back-end, and desktop. Mehul is eager to take on iOS projects where he can leverage his experience to drive projects forward efficiently and with high-quality work.

Previously at

Angel Venchev

Verified Expert in Engineering

11+ Years

of Experience

Application Developer

Angel is an experienced full-stack developer. He has developed an end-to-end, encrypted mobile application that helps people store and share what's most valuable. He led a team of four to accomplish a migration from a legacy system and a team of two to create a white-boxed coaching mobile application. With over 11 years of experience in the industry, he worked on projects for companies like Microsoft, Wells Fargo, Toro, and others.

Previously at

Oliver Ullman

Verified Expert in Engineering

9+ Years

of Experience

Full-stack Developer

Oliver is a React expert who has worked with high-profile clients such as Facebook, Chess.com, and Diem and a full-stack developer who brings energy and intelligence to any team he joins. Oliver's clients value his rapid pace of development and high throughput. His love of programming comes from writing clean, elegant, and scalable solutions.

Previously at

On-demand Talent and Teams

20,000+ vetted professionals, ready to deploy individually or in teams.

Software Developer

Project Manager

Software Developer

UI/UX Designer

DevOps Developer

Front-end Developer

Full-stack Developer

Quality Assurance Engineer

Software Developer

Verified Expert in Engineering

22+ Years

of Experience

Software Developer

Vishal is a full-stack developer and an expert in JavaScript, Angular, React, and Node with more than two decades of experience. He has led UI teams with a focus on best practices to deliver complex, mission-critical apps at companies like Delta Air Lines, Deloitte, and State Farm. He has also done extensive back-end work on Node for apps that scale to millions of daily users.

Previously at

Verified Expert in Project Management

9+ Years

of Experience

Project Manager

Ekaterina is a project manager following Agile methodology with a background in finance. She enjoys the complexity of a project manager's work, with its problem-solving, technical analysis, communication with the team and stakeholders, and the ever-changing nature of the work from project to project. Ekaterina favors the servant leadership approach with her team, as it helps the team to produce results at the top of their abilities while maintaining a comfortable work environment.

Previously at

Verified Expert in Engineering

12+ Years

of Experience

Software Developer

Alejandro is an SRE/DevOps/MLOps engineer and expert in cloud technologies with experience in Azure and AWS on large production environments. He can automate anything from code deployment to infrastructure while ensuring best practices and proper monitoring. He has always been curious about how things work to make them more efficient and enjoys learning new technologies. Alejandro thrives in Agile environments where he can put his problem-solving skills to work.

Previously at

Verified Expert in Design

6+ Years

of Experience

UI/UX Designer

Adel, a seasoned UI/UX expert with over six years of experience, specializes in creating flawless user interfaces. His expertise spans collaborations with notable teams like Airbnb, Colgate, and Supercell. As a dedicated freelance, Adel thrives on solving diverse user challenges, bringing a passion for innovative design to every project.

Previously at

Verified Expert in Engineering

7+ Years

of Experience

DevOps Developer

David is an information technology professional with 7+ years of experience in diverse areas such as systems administration, technical customer support, and enterprise technology sales. He has worked in various industries like financial services, manufacturing, and healthcare. David is progressive, process-oriented, and customer-obsessed, making him a great addition to teams.

Previously at

Verified Expert in Engineering

12+ Years

of Experience

Front-end Developer

Dominik is a technological leader and product engineer with more than 12 years of experience. He has a strong background in CI/CD, DevOps, and creating extraordinary end-user-centric products. Dominik has helped accelerate the cloud transformation at SAP by scaling CI/CD for more than 20,000 developers. He is a passionate team leader, speaker, coach, and mentor.

Previously at

Verified Expert in Engineering

30+ Years

of Experience

Full-stack Developer

In a nutshell, Hugh delivers positive outcomes. When he encounters a problem, he identifies the essential dynamics, hypothesizes a remedy, monitors, and iterates. When the issues extend, impact, or involve others, he acts quickly, focusing on communication and the roadmap. Hugh has over 30 years of experience developing applications and solving problems across a breadth of technical and business domains.

Previously at

Verified Expert in Engineering

17+ Years

of Experience

Quality Assurance Engineer

Christina is a senior QA engineer with expertise in test automation, test management, and manual testing for web and mobile applications. She has created test automation frameworks from the ground up using Selenium WebDriver in several projects as well as automating API testing using REST-assured and Postman. With experience in both private and public sectors, Christina has worked with large, medium-size, and small startup companies.

Previously at

Verified Expert in Engineering

10+ Years

of Experience

Software Developer

Nolan has worked on everything from back-end web development, front-end web development, mobile development, and machine learning (ML). After graduating, he got a job as an automation engineer at Ford, where he made a significant impact by delivering an essential proof of concept (POC) for management. Now Nolan would like to take on new challenges and projects!

Previously at

Looking for guidance about the perfect application service for your needs?

Get a Free Consultation Now

Looking for guidance about the perfect application service for your needs?

UNRIVALED EXPERTISE

Our Talent Has Worked With Top Companies

Having previously worked with these leading global companies, our talent brings valuable insights and expertise to deliver world-class outcomes.

Why organizations choose us

Toptal in Action

Discover the cutting-edge benefits our clients enjoy from the global Toptal network.

Toptal helps Calm achieve better production stability with EKS on AWS.

Challenge: The company behind the leading meditation app found itself in a decidedly noncalming situation when an outage had catastrophic consequences.

Solution: Toptal was able to immediately help Calm’s team build a new, fully automated cluster to be managed by Amazon Web Services (AWS), running under AWS’s new Elastic Kubernetes Services (EKS).

Outocome: Calm benefited from improved stability, reliable networking, and elimination of costly outages. In the months since, the company has been able to easily absorb significant revenue growth without performance issues.

Toptal’s work was a crucial milestone that enabled us to scale our engineering teams and systems in step with our rapid growth.

Mark Marcantano

Technical Program Manager

Read Full Case Study

Toptal Ranked #1 Most Reliable Professional Services Company in America

Newsweek and Statista’s rankings were based on an independent survey of more than 2,400 decision-makers at Fortune 500s.

IBM — Newsweek's Most Reliable Companies in America 2026 ranking. Toptal is ranked #11, the highest-ranked professional services firm.

See the Most Reliable Companies in America

Methodology for the Rankings

How likely the respondent is to recommend the selected company to others.

Measures the convenience of interaction with the company and efficiency of processes.

Measures the company’s cost-effectiveness and quality relative to price.

Measures whether the company consistently meets or exceeds expectations in quality and timeliness of deliverables.

Measures the company’s ability to consistently fulfill commitments and maintain customer trust.

See the Most Reliable Companies in America

OUR THOUGHT LEADERSHIP

Explore Insights From the Application Field

Read the latest articles and resources to keep you current on emerging trends in application development, cloud integration, application security, and more.

Make Your App Profitable: Leverage Mobile Analytics

Building a mobile app isn't cheap—and the harsh reality is that most apps fail. Find out how to leverage fundamental analytics metrics to make sure your app actually turns a profit.

Matthew Knippen

Verified Expert in Engineering

Since 2008, Matthew has built more than 60 iOS apps using Swift and Objective-C. He is best known for taking products from idea to App Store in under eight weeks. He holds a bachelor’s degree in computer science from the Illinois Institute of Technology. His core strengths include native iOS development as well as product development and management.

Expertise

iOS Mobile App

Previously at