Miami businesses can choose from local software studios, global engineering companies with South Florida offices, and fintech-focused teams that serve the city remotely. The companies below cover digital banking, payments, lending, wealth technology, blockchain, data engineering, compliance-focused development, and financial platform modernization. Buyers can compare them by project type, technical scope, delivery model, and local presence.
1. Itexus
Itexus builds software for fintech companies, banks, lenders, insurers, and investment businesses. It works on digital banking apps, mobile wallets, lending platforms, and trading systems. It also builds financial analytics, process automation, and integrations with payment and financial data services. A product can go from discovery and UI/UX design through engineering, testing, cloud deployment, and support.
Itexus also audits and rescues products with architecture, performance, security, or delivery problems. With a US presence and distributed engineers, it can serve Miami companies without relying on a local team alone.
Key Facts
- Best for: Custom fintech products and complex financial integrations
- Core services: Fintech software development, fintech consulting, custom development, UI/UX design, QA, cloud engineering, support
- Fintech areas: Digital banking, payments, lending, trading, insurance, wealth management
- Project types: New products, modernization, integrations, project audits and rescue
- US office: Dover, Delaware
Contact Information
- Website: itexus.com
- E-mail: moc.suxeti@ofni
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- LinkedIn: www.linkedin.com/company/itexus
- Instagram: www.instagram.com/itexus.soft
- Address: 8, The Green, STE road, Dover, DE 19901
2. ZoolaTech
ZoolaTech has a Miami office and builds software for financial companies and other regulated or fast-growing businesses. Its fintech work covers lending, payments, and data automation. It also handles software modernization, cloud systems, quality engineering, and long-term product support.
ZoolaTech fits companies that already run a working platform and need to modernize it, add features, or add engineers. Buyers can hand over a defined outcome through managed delivery. Or they can embed ZoolaTech engineers in their own product team.
Key Facts
- Best for: Scaling and modernizing established financial platforms
- Core services: Software engineering, application services, legacy modernization, cloud, DevOps, QA
- Fintech areas: Lending, payments, financial data automation
- Engagement models: Managed delivery, offshore delivery centers, team extension
- Miami office: 1221 Brickell Ave, Suite 900, Miami, FL 33131
Contact Information
- Website: zoolatech.com
- Facebook: www.facebook.com/Zoolatech
- Twitter: x.com/Zoolatech_com
- LinkedIn: www.linkedin.com/company/zoolatech
- Instagram: www.instagram.com/zoolatech
- Address: 1221 Brickell Ave, Suite 900, Miami, FL 33131, USA
3. KITRUM
KITRUM is an engineering company with a Miami office that supports live fintech products. It builds wealth management software, KYC solutions, and payment systems. It also improves and modernizes business-critical applications.
KITRUM does more than new MVPs. It helps companies stabilize, extend, or take over an existing codebase. Its services include AI-enabled engineering, legacy modernization, cloud and DevOps, QA, and dedicated teams. Fintech operators with a live product and a steady release schedule are a good match.
Key Facts
- Best for: Fintech companies improving or scaling a live software product
- Core services: Product engineering, modernization, AI-enabled development, QA, DevOps
- Fintech areas: Wealth management, KYC, payments, financial platforms
- Certification: ISO 27001
- Miami office: 848 Brickell Ave, Suite 605, Miami, FL
Contact Information
- Website: kitrum.com
- Email: moc.murtik@olleh
- Facebook: www.facebook.com/wekitrum
- Twitter: x.com/KitRUM_LLC
- LinkedIn: www.linkedin.com/company/kitrum
- Instagram: www.instagram.com/kitrum.team
- Phone: +1 888 825 8034
- Address: 848 Brickell Ave, Suite 605, Miami, FL, USA
4. Intellectsoft
Intellectsoft builds financial software for fintech companies and established financial institutions, from strategy to support. It covers product strategy, architecture, web and mobile engineering, and cloud systems. It also works with blockchain, AI, QA, and application modernization. Typical projects include transaction platforms, digital banking tools, payment workflows, and open banking software.
Intellectsoft opened a Miami office as part of its US operations. It has worked on both enterprise transformation and new digital products. Its model suits multi-stage programs with discovery, design, build, and support, more than a narrow coding task.
Key Facts
- Best for: Enterprise financial software and digital transformation programs
- Core services: Product strategy, custom software, mobile development, cloud, AI, blockchain, QA
- Fintech areas: Banking, payments, open banking, transaction management
Contact Information
- Website: www.intellectsoft.net
- E-mail: ten.tfostcelletni@ofni
- Facebook: www.facebook.com/Intellectsoft
- Twitter: x.com/Intellectsoft
- LinkedIn: www.linkedin.com/company/intellectsoft
- Phone: +1 (650) 233-6196
- Address: 500 Fashion Avenue, Floor 8A, New York, NY 10018
5. Devox Software
Devox Software has a Miami office and a dedicated fintech engineering team. It builds digital banking products, lending systems, accounting software, payment apps, and trading tools for web and mobile. It also does business analysis, UI/UX design, QA, DevOps, cloud work, and maintenance.
Miami teams get local access backed by a distributed delivery team. Devox can take a new app from planning to release. It can also add individual specialists or a dedicated team to an existing roadmap. It works on both customer-facing products and internal operations systems.
Key Facts
- Best for: Full-cycle fintech application development with Miami coverage
- Core services: Discovery, software development, UI/UX, QA, DevOps, maintenance
- Fintech areas: Digital banking, lending, accounting, payments, trading
- Location: 14 NE 1st Ave, Miami, FL 33132
Contact Information
- Website: devoxsoftware.com
- E-mail: moc.erawtfosxoved@ofni
- Facebook: www.facebook.com/devoxsoftware
- LinkedIn: www.linkedin.com/company/devox-software
- Address: 14 NE 1st Avenue, 33132, Miami, FL, USA
6. SDSol Technologies
SDSol Technologies is a Miami software studio that builds custom applications for banking, lending, insurance, and other sectors. It makes mobile and web software, SaaS products, and APIs. It also handles cloud infrastructure, cybersecurity, modernization, and managed application services.
Local financial businesses can use SDSol to build customer apps or improve internal systems with integrations, automation, and secure data handling. The studio starts with consulting and UX work to define the product. It then handles engineering, deployment, and maintenance. Its Brickell office makes in-person discovery meetings easy.
Key Facts
- Best for: Miami businesses seeking a local full-service development studio
- Core services: Custom software, mobile apps, SaaS development, APIs, cloud, cybersecurity
- Fintech areas: Banking, lending, insurance, financial applications
- Location: Brickell, Miami
Contact Information
- Website: sdsol.com
- Email: moc.losds@ofni
- Facebook: www.facebook.com/sdsoltech
- LinkedIn: www.linkedin.com/company/sdsol-technologies
- Instagram: www.instagram.com/sdsoltechnologies
- Phone: +1 305 274 2147
- Address: 1200 Brickell Ave, Suite 1260, Miami, FL 33131, USA
7. Alpha Bravo Development
Alpha Bravo Development is a Miami-based app and software agency with a dedicated banking software service. It builds custom web and mobile products, customer and employee portals, payment features, dashboards, and API connections. It also uses AI and machine learning when the business case calls for them.
Startups and established businesses can hire this local team for a defined app build. Banking and fintech buyers can use it for the customer-facing front end. It also builds the custom back-end workflows and integrations behind it.
Key Facts
- Best for: Custom banking applications and focused product builds
- Core services: Web development, mobile apps, UI/UX, APIs, AI and machine learning
- Fintech areas: Banking software, payment features, financial dashboards
- Location: Miami, Florida
Contact Information
- Website: www.alphabravodevelopment.com
- E-mail: moc.tnempolevedovarbahpla@ofni
- Facebook: www.facebook.com/alphabravodev
- Twitter: x.com/alphabravodev
- Instagram: www.instagram.com/alphabravodevelopment
- Address: 111 Northeast 1st Street, Floor 8, Miami, FL 33132
- Phone: (305) 614-9507
8. GP Solutions
GP Solutions has a Miami Beach office and builds software for banking and finance organizations. It develops customer-facing banking apps, secure financial workflows, and system integrations. It also covers data management, cloud development, testing, and support across web, mobile, and enterprise software.
Financial institutions can turn to GP Solutions to modernize existing processes. It also builds custom products that must connect to established business systems. Clients deal with a US office while engineering centers in Europe do the work, which suits companies wanting a long-term outsourced team.
Key Facts
- Best for: Banking software and long-term outsourced engineering
- Core services: Custom software, integrations, cloud development, QA, support
- Fintech areas: Digital banking, customer experience, secure financial workflows
- Miami office: Miami Beach, Florida
Contact Information
- Website: gpsolutions.com
- Facebook: www.facebook.com/GPsolutions.GmbH
- LinkedIn: www.linkedin.com/company/gp-solutions-gmbh
- Instagram: www.instagram.com/gp.solutions
- Phone: +48 22 266-21-33
- Address: 407 Lincoln Road, Suite 12D, Miami, FL 33139
9. N-iX
N-iX has a South Florida office and builds software for fintech companies, neobanks, traditional banks, investment platforms, and consumer finance businesses. Its services include product engineering, cloud and data platforms, AI, and cybersecurity. It also offers application modernization, DevSecOps, and managed delivery.
N-iX fits large or technically complex programs that need a big engineering organization. Financial clients use it for new platforms, legacy modernization, analytics, infrastructure, and team expansion. Its security and cloud skills matter most when software handles sensitive financial data at scale.
Key Facts
- Best for: Enterprise fintech engineering and modernization
- Core services: Software engineering, cloud, data, AI, cybersecurity, DevSecOps
- Fintech areas: Banking, neobanks, investment platforms, consumer finance
- Florida office: Plantation, Florida
Contact Information
- Website: www.n-ix.com
- E-mail: moc.xi-n@tcatnoc
- Facebook: www.facebook.com/N.iX.Company
- Twitter: x.com/N_iX_Global
- LinkedIn: www.linkedin.com/company/n-ix
- Phone: +1 727 341 5669
- Address: 4330 W Broward Blvd, Space P/Q, Plantation, FL 33317, USA
10. Teravision Technologies
Teravision Technologies is a nearshore software company headquartered in Miami, with engineers across Latin America. It supports fintech products with product engineering, cloud and DevOps, data and AI, QA, design, and dedicated development teams.
Fintech and SaaS businesses hire Teravision to speed up an existing roadmap or build a new product team. Its engineers work in similar time zones, and its sales team is US-based. Miami companies get nearshore delivery without big gaps in the working day.
Key Facts
- Best for: Nearshore fintech product teams in compatible US time zones
- Core services: Product engineering, staff augmentation, AI and data, cloud, DevOps, QA
- Engagement models: Dedicated teams, staff augmentation, product studio
- Location: Miami, Florida
Contact Information
- Website: www.teravisiontech.com
- Facebook: www.facebook.com/TeravisionTech
- Twitter: x.com/teravisiontech
- LinkedIn: www.linkedin.com/company/teravision-technologies
- Instagram: www.instagram.com/teravisiontech
- Phone: +1 888 989 8324
- Address: 6450 SW 88th St, Miami, FL 33156, USA
11. Mercury Development
Mercury Development is a Miami-area software company that builds web, mobile, desktop, cloud, and AI-enabled products. It works in fintech and other technology-heavy sectors. Its services cover discovery, product design, full-cycle development, QA, transformation, and staff augmentation.
In fintech, Mercury fits best when product experience and multi-platform engineering are central. It builds customer-facing mobile apps, web platforms, data-driven features, and the cloud systems behind them. It also helps existing businesses update an established digital product instead of replacing it.
Key Facts
- Best for: Multi-platform financial products and polished customer applications
- Core services: Mobile, web, cloud, desktop, AI and machine learning, QA, design
- Project types: New products, application transformation, staff augmentation
- Location: Miami area, Florida
Contact Information
- Website: mercurydevelopment.com
- Email: moc.tnempolevedyrucrem@selas
- Facebook: www.facebook.com/mercdev
- Twitter: x.com/mercdev
- LinkedIn: www.linkedin.com/company/mercury-development-llc
- Instagram: www.instagram.com/mercdev
- Phone: +1 305 767 2434
Conclusion
The right Miami fintech development partner depends on the product and the delivery gap that needs to be filled. Start by separating greenfield development from modernization, then shortlist companies with direct experience in the required area, such as payments, lending, banking, wealth management, or blockchain. Before signing a contract, compare their proposed architecture, security responsibilities, integration plan, team composition, release process, and post-launch support.