Fintech App Development Services

A WORLD-CLASS Fintech App Development Company

Fintech App Development Services – Build Secure Financial Platforms

Create modern financial experiences with Toptal’s Fintech App Development Services. Our specialists develop scalable applications that help organizations improve customer interactions, automate financial workflows, and deliver reliable financial products.

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 Fintech App Development Services

Bring new financial products to market while maintaining compliance and operational stability. Toptal provides end-to-end development support across architecture, integrations, modernization initiatives, and platform growth.

Financial Application Development

Build custom fintech applications that support secure transactions, evolving regulations, and ongoing product growth.

Digital Banking Platform Development

Develop digital banking experiences that make account management and everyday financial services easier to access.

Payment Systems Integration

Connect payment infrastructure to support faster transaction processing and a more reliable customer payment experience.

Financial API Development

Create APIs that help financial products exchange data securely while reducing integration complexity across systems.

Mobile Fintech Application Development

Deliver mobile financial experiences that give customers secure access to services wherever they choose to engage.

Lending Platform Development

Build lending platforms that reduce manual review work and create a more streamlined borrower experience.

Investment and Wealth Management Platforms

Develop investment applications that help users monitor portfolios, evaluate performance, and make informed decisions.

Embedded Finance Solutions

Integrate financial capabilities directly into digital products to create seamless customer experiences and unlock new revenue opportunities.

Blockchain Financial Applications

Apply blockchain technology to financial products that require transparent records and trusted transaction histories.

Financial Analysis and Reporting

Transform financial data into actionable reporting that helps leaders evaluate performance and guide future planning.

Cloud Infrastructure for Fintech

Design cloud environments that support application growth while meeting the security demands of financial services.

Fintech Platform Modernization

Modernize legacy financial platforms to support new customer expectations without disrupting critical operations.

Looking for guidance about the perfect fintech app development service for your needs?

Get a Free Consultation Now

PARTNERSHIP THAT WORKS

How We Deliver Fintech App Development Services

Our Fintech app development 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 first drafts, whether your goal is modernizing financial platforms, improving digital payment experiences, or scaling secure fintech operations.

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

Fintech App Development Solutions That Deliver Value

Toptal delivers leading Fintech app development 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

Fintech Product Manager

Fintech Product Designer

Payments Product Manager

Secure Mobile App Developer

Fintech Mobile App Developer

Fintech Security Architect

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

Divya Chittoor

Verified Expert in Product Management

15+ Years

of Experience

Fintech Product Manager

Divya is a fractional product leader with diverse experience in software engineering, consulting, and product management. She has held multiple leadership roles at high-performing organizations such as Facebook, McKinsey, and Y Combinator-backed startups. She can help companies build high-performing product teams, set a product strategy, and improve teams’ execution.

Previously at

Michal Florczak

Verified Expert in Design

16+ Years

of Experience

Fintech Product Designer

Michal is an experienced design lead with 16+ years of experience delivering digital platforms. He specializes in complex UI/UX systems across finance and fintech, including at Goldman Sachs, Thomson Reuters, and Travelex. He brings a user-centred mindset, strong stakeholder alignment, and a broader design perspective shaped by work in healthcare, luxury, music, and the public sector, informing a more human approach to financial product design.

Previously at

Amleto Montinari

Verified Expert in Product Management

21+ Years

of Experience

Payments Product Manager

Amleto is a seasoned product and strategy manager with extensive experience building B2B software. His work with PayPal, JP Morgan, his own startup, and Worldsensing saw him build a deep understanding of purchase mechanisms in the B2B software and SaaS space. He has successfully launched countless profit-driving, resource-saving products as well as software that has won several international awards.

Previously at

Angel Venchev

Verified Expert in Engineering

11+ Years

of Experience

Secure Mobile App 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

Giorgi Dalakishvili

Verified Expert in Engineering

18+ Years

of Experience

Fintech Mobile App Developer

Giorgi is a software developer with more than a decade of experience. He works mainly with C#, ASP.NET Core, REST, GraphQL, MAUI, Xamarin, Entity Framework Core, AWS, Azure, and SQL Server. He has also worked with many other frameworks and systems, such as ASP.NET MVC, ASP.NET Web API, WCF, Avalonia, WinForms, Oracle, and many more. Giorgi is an open-source author and contributor on GitHub, a Microsoft MVP, and a member of the .NET Foundation.

Previously at

Andrew Olson

Verified Expert in Engineering

23+ Years

of Experience

Fintech Security Architect

Andrew is a seasoned security leader covering the strategy and architectures of complex digital security, cloud, and enterprise initiatives. He has extensive experience working with multidisciplinary teams and C-suite leaders across the banking, finance, technology, and retail sectors. Experienced in leading, consulting, devising, and executing strategies, Andrew maintains a highly technical skillset and enjoys advising on digital and cloud platform security and transforming business security.

Previously at

On-demand Talent and Teams

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

Fintech Product Manager

Threat Intelligence Expert

Fintech Full-stack Developer

Mobile Payments Engineer

Fintech Product Designer

Fintech iOS Developer

Fintech Cloud Developer

Fintech iOS Developer

Fintech QA Engineer

Verified Expert in Product Management

16+ Years

of Experience

Fintech Product Manager

Kartikeya is a seasoned professional with more than 16 years of experience spanning product and portfolio management, marketing, research, sales, strategy, and banking. As a product owner, he has overseen the development of more than 50 products across digital banking, payments, rewards and loyalty programs, corporate and government banking, insurance, lending, and supply chain finance. A subject matter expert in digital products, digital marketing, portfolio management, and consumer banking, Kartikeya has successfully led teams of 5 to 20 members.

Previously at

Verified Expert in Engineering

23+ Years

of Experience

Threat Intelligence Expert

Isra is a cybersecurity architect and threat intelligence lead with over 23 years of experience, specializing in dark web monitoring and an expert in data collection, analysis, framework development, and reporting. A highly skilled cybersecurity professional with a proven track record of success in IT expertise, Isra is also an active participant in ethical hacker events and conferences.

Previously at

Verified Expert in Engineering

20+ Years

of Experience

Fintech Full-stack Developer

Hans is a senior full-stack developer with a master’s degree in computer information systems and more than 20 years of experience delivering software solutions. He is proficient in various stacks, languages, and databases, focusing on full-stack development using the JavaScript stack (React/Node.js), TypeScript, Python, and the Google Cloud Platform, including Firebase. Hans was a technical lead at startups and Fortune 500 companies like Deutsche Bank, and is a resourceful contributor to any team.

Previously at

Verified Expert in Engineering

16+ Years

of Experience

Mobile Payments Engineer

Kevin has extensive experience in hands-on development in the Android mobile native space and with technical project and product management. His technical knowledge and cross-functional skills have been honed throughout his career at various startup and larger-sized companies, and he has a proven track record of delivering results that drive business growth.

Previously at

Verified Expert in Design

11+ Years

of Experience

Fintech Product Designer

Great is a digital product designer with over 11 years of experience designing mobile and web applications for clients such as McKinsey, Spotify, Wise, and Checkout.com. He is skilled in user experience design, wireframing, prototyping, usability research, and user interface design. A proven team player, Great thrives both independently and in teams of various sizes. He is an excellent communicator who enjoys solving complex problems.

Previously at

Verified Expert in Engineering

7+ Years

of Experience

Fintech iOS Developer

Aline is a mobile developer with 7+ years of experience specializing in the iOS environment, building apps from scratch, and handling large existing codebases. At Uber, she was part of the Safety team, shipping features used by millions of users with high levels of reliability and observability. At PicPay, a large Brazilian fintech, she led the mobile platform team, focusing on automation and efficiency. Aline is willing to leverage her experience and skill set on new and challenging projects.

Previously at

Verified Expert in Engineering

13+ Years

of Experience

Fintech Cloud Developer

With more than 13 years of professional experience in software development and architecture, Pamela has delivered projects to major banks, financial institutions, insurance companies, retailers, and healthcare institutions, among other industry verticals. These projects include, but are not limited to, designing scalable, cost-effective, and highly available applications for public cloud environments.

Previously at

Verified Expert in Engineering

11+ Years

of Experience

Fintech iOS Developer

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

Verified Expert in Engineering

20+ Years

of Experience

Fintech QA Engineer

Seema brings more than 20 years of software testing and quality assurance expertise to the table. She has substantial experience with manual testing and the test automation of web and mobile applications. Seema is a certified Scrum master, an IBM-certified Db2 professional, and an AWS-certified solutions architect comfortable with Agile and Waterfall approaches. Her in-depth knowledge of API and performance testing delivers excellent results.

Previously at

Looking for guidance about the perfect fintech app development service for your needs?

Get a Free Consultation Now

Looking for guidance about the perfect Fintech app development 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 boosts fintech company sign-ups by 200% with user-centered redesign.

Challenge: A fintech company needed to modernize its private pricing and liquidity platform after multiple development cycles failed to achieve engagement goals or deliver the intended user experience.

Solution: Toptal applied a user-centered design approach to reimagine the platform experience. Through iterative design, ongoing user feedback, and data-informed decision-making, the team developed a scalable foundation that better aligned product functionality with user needs.

Outcome: The redesigned platform delivered a 200% increase in user sign-ups and a 28% month-over-month increase in active users. The stronger user experience improved engagement and created a more scalable platform for future growth.

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 Fintech App Development Field

Read the latest articles and resources to keep you current on emerging trends in fintech platforms, digital banking, payment systems, and more.

How to Value a Fintech Startup

Compared to traditional financial services businesses, fintech startups require different valuation approaches. This article explores these differences and the best practices to apply when appraising a fintech investment.

Nirvikar Jain

Verified Expert in Management Consulting

Nirvikar is an experienced CEO and investment banker who has helped organizations raise more than $20 billion in capital. His background includes leadership roles in financial services and fintech, where he has advised companies on fundraising and strategic growth initiatives. Over the course of his career, he has worked with organizations ranging from startups seeking investment to established businesses pursuing expansion. Nirvikar brings extensive experience evaluating opportunities, guiding executive decision-making, and helping companies prepare for their next stage of growth

Expertise

Valuations

Previously at