Enterprise Application Integration Services

Enterprise Application Integration Services – Connect Systems and Streamline Data Exchange

Connect applications and data with Toptal’s Enterprise Application Integration Services. Design and deploy integration solutions that link systems, standardize data exchange, and refine integration layers that support coordinated system behavior.

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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 Enterprise Application Integration Services

Connect systems to support consistent data exchange and coordinated operations across your business. Toptal’s integration specialists help organizations design, implement, and refine integration layers that keep applications working in sync.

Integration Strategy and Planning

Define how systems should connect based on business requirements, data flows, and existing architecture constraints.

Service Bus Setup

Configure enterprise service bus platforms to manage communication between platforms and standardize message handling.

API Governance

Establish policies and controls that manage how APIs are exposed, secured, and monitored across applications.

Custom API Development

Build APIs to meet specific integration needs and enable controlled data exchange across connected services.

Integration Platform Implementation

Deploy integration platforms that simplify connectivity between cloud and on-premise systems. Support scalable connections as data volumes grow.

Data Flow Design

Structure how data moves across enterprise tools, including transformation rules and synchronization logic.

Middleware Solutions

Build middleware layers that connect systems with different protocols, formats, and communication patterns.

Event-driven Architecture

Design event-based interactions that allow services to respond to changes as they occur, powering real-time processing across connected components.

Legacy System Integration

Connect older platforms to modern applications to extend their usefulness without full replacement.

Cloud and SaaS Connectivity

Connect cloud platforms and SaaS tools to facilitate data flow across hybrid environments.

Workflow Automation

Automate workflows and process handoffs to reduce manual intervention across business processes.

Integration Testing

Test system connections under real conditions to confirm data accuracy and system behavior. Validate how integrations perform before and after deployment.

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

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PARTNERSHIP THAT WORKS

How We Deliver Enterprise Application Integration Services

Our enterprise application integration 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

Once your service is defined and you have your talent or team on board, they will create your unique project timeline, process, and initial proposals, whether your goal is to establish new integrations or standardize data exchange across your applications.

Deploy

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

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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

Enterprise Application Integration Solutions That Deliver Value

Toptal delivers leading enterprise application integration 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

Data Integration Architect

Integration Specialist

API Integration Developer

Integration Specialist

Data Architect and Developer

Data Migration Engineer

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

Gabriel Breahna

Verified Expert in Engineering

30+ Years

of Experience

Data Integration Architect

Gabriel more than 30 years of experience installing, managing, and using SQL, NoSQL (key-value, columnar, graph), time-series, spatial, in-memory, and cloud databases. He's worked with 10TB OLTP databases, 10TB data warehouses, tables with 10+ billion rows, and databases with 10,000+ tables.

Previously at

Priyanka V

Verified Expert in Engineering

13+ Years

of Experience

Integration Specialist

Priyanka has implemented and enhanced 100+ Salesforce applications with users ranging from five to 1000+. As a Salesforce developer and consultant, she has eight certifications and 13+ years of experience converting business processes to real-time applications while applying best practices in solution design and implementation. Priyanka finds immense happiness in using her Salesforce expertise to bring business value by saving cost/time, making clients' lives easier, and increasing productivity.

Previously at

Piotr Poznanski

Verified Expert in Engineering

23+ Years

of Experience

API Integration Developer

Piotr is a blockchain architect, software developer, and technical lead with more than 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

Denis Volk

Verified Expert in Engineering

24+ Years

of Experience

Integration Specialist

Denis is a senior full-stack AI engineer and data scientist, highly skilled in modern generative tech (GPT-4, Midjourney, and more), machine learning, ETL pipelines, data analysis, mathematical modeling, big data, and MLOps. He has a PhD in mathematics, and his data science expertise includes probabilistic risk modeling, revenue forecasting, geospatial data analysis, handwriting recognition, anomaly detection in time series, data engineering, and team leading.

Previously at

Art Vancil

Verified Expert in Engineering

47+ Years

of Experience

Data Architect and Developer

Art has decades of data architecture and cloud-computing consulting experience—mostly in building enterprise data warehouses. Art is an end-to-end solution architect and chief problem solver with a long history of focused execution—according to a statement of work—and successful delivery in a team setting.

Previously at

Mohammad Hossain

Verified Expert in Engineering

20+ Years

of Experience

Data Migration Engineer

Mohammad has 20+ years of experience in building and maintaining large-scale distributed systems, data platforms, and machine learning for a variety of industries. With his master’s degree in computer science from USC, Mohammad has a technical understanding that is deeply rooted. He has excellent communication skills and business understanding. Because of his great interpersonal skills, it is a pleasure to work with him.

Previously at

On-demand Talent and Teams

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

Data Integration Architect

Data Integration Engineer

Cloud Integration Engineer

Integration Specialist

Enterprise Security Architect

ETL Expert

Database Administrator

Data Integration Engineer

Security Engineer

Verified Expert in Engineering

24+ Years

of Experience

Data Integration Architect

Bogdan has 24+ years of hands-on experience with enterprise-level systems, delivering tens of large projects for top organizations in energy, pharma, telco, e-commerce, banking, and the public sector. As a solutions architect, Bogdan can drive a solution from concept to production or provide end-to-end POCs (or MVPs) regarding solution architecture, design, development, and release pipelines.

Previously at

Verified Expert in Engineering

27+ Years

of Experience

Data Integration Engineer

Shanthi has more than 27 years of experience developing applications using various technologies. As an architect, she has executed several web-based applications, integrations, data migrations, data conversions, and data warehousing projects with significant hands-on as well as leadership responsibilities. She keeps up-to-date with the latest technologies and can effectively match the business needs with those technologies.

Previously at

Verified Expert in Engineering

16+ Years

of Experience

Cloud Integration Engineer

Ronen started his professional career as a software developer but quickly transitioned first into OS and middleware administration, and then into the DevOps and cloud space. Overall, Ronen possesses expert knowledge of Java/JEE, networking and security principles, DevOps and automation strategies, and intimate knowledge of the Microsoft Azure cloud. Ronen is seeking to continue working within the cloud utilizing DevOps and automation principles.

Previously at

Verified Expert in Engineering

26+ Years

of Experience

Integration Specialist

Yuriy is a data specialist with over 26 years of experience in data warehousing, data engineering, feature engineering, big data, ETL/ELT, and business intelligence. As a big data architect and engineer, Yuriy specializes in AWS and Azure frameworks, Spark/PySpark, Databricks, Hive, Redshift, Snowflake, relational databases, tools like Fivetran, Airflow, DBT, Presto/Athena, and data DevOps frameworks and toolsets.

Previously at

Verified Expert in Engineering

31+ Years

of Experience

Enterprise Security Architect

Joe is a seasoned security and infrastructure engineering professional with experience performing application and network assessments, writing and enforcing policies, providing defense for an enterprise environment, and administrating infrastructures. He has in-depth knowledge of information security, information technology, and information warfare. Joe is a competent Python programmer, adding automation and integration that reduces workloads.

Previously at

Verified Expert in Engineering

18+ Years

of Experience

ETL Expert

Edison is an Azure BI developer, data engineer, and data architect with 18 years of BI and data engineering experience across industries. Backed by an MCSE Azure Cloud Platform certification, he delivers high-quality BI solutions using Azure Data Factory (ADF), Python, Azure Functions, Azure SQL Database, Azure Synapse, Power BI, Databricks, Analysis Service, and SQL Server. Edison also excels at dimensional modeling, performance turning large data warehouses, and .NET and Angular development.

Previously at

Verified Expert in Engineering

30+ Years

of Experience

Database Administrator

Peter is a seasoned data platform expert specializing in the Microsoft stack, including Azure. With skills ranging from data architecture and engineering to database administration and development, his 30+ years of experience, multiple certifications, and passion for learning set him apart in addressing clients’ diverse data requirements.

Previously at

Verified Expert in Engineering

25+ Years

of Experience

Data Integration Engineer

Stephane possesses an impressive 25+ years of international experience in data analytics and business process optimization. Throughout his career, he has excelled in various areas, including database design, business intelligence (BI), machine learning algorithms, big data, and predictive analytics. Stephane's expertise lies in developing solutions that automate processes, allowing clients to allocate their efforts toward value-added activities.

Previously at

Verified Expert in Engineering

7+ Years

of Experience

Security Engineer

Nicaury is a security engineer with 7+ years of experience in information security, cybersecurity, and systems administration. She has worked in fast-paced, remote environments for years, developing excellent communication and leadership skills. Nicaury is a certified professional with proven problem-solving and analytical skills, a fast learning curve, and the ability to adapt to any team.

Previously at

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

Get a Free Consultation Now

Looking for guidance about the perfect enterprise application integration 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

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

Toptal helps leading investment advisory firm save an estimated $500,000 per year with API-first strategy.

Challenge: After a company restructuring, a leading investment advisory firm faced a shortage of technical expertise and a data integration strategy hindered by manual processes and outdated legacy systems. To stay competitive, the firm needed a customer-centric, data-driven solution to streamline client management and drive smarter, faster decision-making.

Solution: Toptal swiftly assessed the client’s current system and isolated issues with outdated management and unscalable peer-to-peer connections across their many apps. Leveraging Agile techniques to implement MuleSoft API, Toptal spent 18 months instituting an API-first strategy to replace old processes with automated, modernized solutions for 10 of the client’s applications.

Outcome: The new API-focused operating model saved the client 5,000 hours annually, valued at $500,000, while improving data consistency and reducing errors. By replacing peer-to-peer dependencies, Toptal’s solution enhanced functionality and created a scalable architecture for future growth.

Toptal worked relentlessly over many months for the successful launch of our new platform and MuleSoft capabilities.

CRM Leader

J.D. Power Award-winning Investment Advisory

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 Enterprise Application Integration Field

Read the latest articles and resources to keep you current on emerging trends in enterprise application integration, API management, data integration, and more.

IT Integration in Mergers and Acquisitions: Structuring Synergy

Companies are increasingly using M&A as a way to acquire valuable technology. Implementing a strong IT integration strategy from the beginning is the key to ensuring the desired benefits.

John S. Doss

Verified Expert in Management Consulting

32 Years of Experience

John is a finance and technology leader with deep expertise in enterprise architecture and business strategy. With a unique blend of IT and business knowledge, he has successfully developed digital transformation initiatives across diverse industries. John has a master’s degree in mathematics and computer science, and an MBA from The Trinity College and University.

Expertise

M&A Post-merger Integrations

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