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Read MoreApplication Services and Modernization for Digital Capabilities
Toptal's application development and modernization services help businesses develop, modernize, and innovate their digital capabilities. Get end-to-end product and software development from a global talent network with subject matter expertise in architecture and engineering.
Team Leader
Featured Full Team of Application Development and Modernization Specialists
Timothy Mensch
Senior Software Architect
Tim is a senior software architect/engineer generalist. He has built the technology stack for multiple startups from the ground up. He also has experience rescuing projects and turning train wrecks into successful launches. He has worked in many domains, including retail, banking, internet of things, high-performance servers, machine learning, gamification, and scalable application server design.
Previously at
Engineering Experience
14+ Years
Cleivson Siqueira De Arruda
Software Developer
Cleivson is a senior back-end engineer with 14+ years of experience working with agile development and solving business problems by diving deep into the user's requirements. While working at Amazon, he was able to develop and maintain systems with a high load (millions, sometimes billions of requests per day) in a highly scalable and highly available environment. Cleivson specializes in C#, Java, and TypeScript languages and can rapidly ramp up any other technology.
Previously at
Engineering Experience
14+ Years
Noelia Lopez
Front-end Developer
Noelia is a passionate software engineer with 9+ years of experience. What sets her apart is her ability to ramp up new technologies and her problem-solving skills quickly. She thrives on new challenges and enjoys pushing herself to learn and grow. She is passionate about mentoring junior developers and helping them unlock their full potential. She loves proposing new ideas, wearing many hats, and collaborating closely with different areas to achieve success.
Previously at
Engineering Experience
9+ Years
TRUSTED BY LEADING BRANDS
OUR SERVICES
Application Development and Modernization Services
Toptal’s application development and modernization services helps you focus on your technology and application stacks with a point of view to migrate, modernize and mitigate any risks associated with legacy operations and to elevate your customer experience.
CUSTOMIZED SOLUTIONS
Application Services and Modernization Solutions That Drive Impact
Toptal delivers leading application development and modernization 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.
- Managed Delivery by Toptal
- On-demand Talent and Teams
Managed Delivery by Toptal
End-to-end project delivery per your specific requirements.
Delivery Manager
Senior Systems Engineer
Product Manager
Software Engineer
Encryption Developer
Full-stack Developer
Solutions Architect
Dave Mayer
Delivery Manager
Dave serves as a Delivery Manager at Toptal with a focus on data engineering projects. He’s led support and development teams to multimillion-dollar successes and has transitioned professional service teams to Agile methodology. Dave’s expertise in data engineering ensures project deliveries are both innovative and exceptional.
Previously Managed Client
Technology Experience
15+ Years
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
Oliver Holloway
Verified Expert in Engineering
14+ Years
of Experience
Software Engineer
Oliver is a versatile data scientist and software engineer combining 14+ years of experience and a postgraduate mathematics degree from Oxford. Career assignments have ranged from building machine learning solutions for startups to leading project teams and handling vast amounts of data at Goldman Sachs. With this background, he is adept at picking up new skills quickly to deliver robust solutions to the most demanding of businesses.
Previously at
Angel Venchev
Verified Expert in Engineering
11+ Years
of Experience
Encryption 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
Hugh Ediet
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
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
On-demand Talent and Teams
20,000+ vetted professionals, ready to deploy individually or in teams.
Software Engineer
Software Developer
Project Manager
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 Engineer
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 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 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.Ekaterina is a project manager and a certified Scrum master. 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 also holds certified Salesforce administrator and Salesforce service cloud consultant certifications.
Previously at
Verified Expert in Design
17+ Years
of Experience
UI/UX Designer
Tündi is a digital product designer and director with more than 17 years of experience. Her clients include Google Creative Lab, Google, the Academy Awards, IBM Watson’s AI cognitive division, NBC Universal, the Royal Caribbean Innovation Lab, OkCupid, Gucci, Hermès, and Diesel. Tündi’s work has won a Webby Award and has been featured in Product Hunt, The Verge, VentureBeat, CNET, Voicebot.ai, and many other publications and news sources.
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
8+ 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
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
Drive Innovation With Toptal’s Application Services and Modernization
Why organizations choose us
Toptal in Action
Discover the cutting-edge benefits our global clients enjoy from the Toptal network.
WaitWhat Media, featuring LinkedIn Co-founder Reid Hoffman's groundbreaking Masters of Scale podcast, worked with Toptal to build a globally accessible content-sharing platform.
Challenge: WaitWhat is a media invention company recognized for high-quality, genre-defining content and technology products designed at the intersection of daily habit and human potential. Eager to curate and adapt the most incisive wisdom from its vast library into 10-minute daily practices for business leaders, WaitWhat required an inventive team to meet their exceptionally high standards of quality and impact.
Toptal’s methodology gave me confidence that we had the best chance of getting an A-team brought together quickly.
Deron Triff
Co-founder, WaitWhat
COLLABORATION THAT WORKS
How to Work with Toptal for your Application Development & Modernization Needs
Toptal matches you directly with global specialists from our network in hours—not weeks or months.
1
Talk to an Application Development & Modernization Lead
A leader from our team will work with you to understand your goals, technical needs, and team dynamics.
2
Get the Perfect Solution
From full end-to-end delivery to team augmentation—choose the best model for your business and project needs.
3
The Right Fit, Every Time
Work with Toptal’s Application Services and Modernization team on a trial basis (pay only if satisfied), ensuring that your needs are ultimately met.
Maximize your business performance with Toptal’s Application Development and Modernization Services
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The Technology Service division at Toptal provides world-class technology consulting and implementation services to clients. Through their experience with the world’s largest consulting firms and product companies, the division has served a range of clients across industries on their innovation and digital transformation initiatives.
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Explore Insights From the Application Services Field
Read the latest articles and resources to keep you current on emerging trends in mobile analytics, enterprise applications, server-less technology, and more.
RELATED EXPERTISE
More Application Development & Modernization Capabilities
Pair Toptal’s application development and modernization specialists with related competencies to tackle your business initiatives extensively.
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