Sydney businesses planning financial software can choose from local product teams, providers with Australian operations, and international fintech specialists. The right shortlist depends on what needs building: a customer app, a lending workflow, a payment platform, or the systems behind an established financial institution. These companies cover different parts of that work, with services ranging from product discovery and custom development to integration, testing, and ongoing support.
1. Itexus
Itexus builds software for banking, trading, wealth management, lending, and insurance. It is an international provider with offices in the United States and Poland. For Sydney businesses, it is an overseas option to weigh against Australian teams. It builds customer apps and the backend systems that link them to payment services, brokers, identity verification providers, and financial data feeds.
For existing products, Itexus runs code audits, recovers stalled projects, and modernizes legacy systems step by step. New builds start with discovery, architecture, and interface design. Development, testing, deployment, and production support follow. Its past work includes a digital wallet ecosystem for Coinstar and wealth management software.
Key Facts
- Core services: Fintech software development, product discovery, UI/UX design, quality assurance, and maintenance.
- Focus: Custom financial products and complex financial system integrations.
- Project types: Banking apps, digital wallets, trading platforms, and investment systems.
- Location: United States and Poland; international delivery.
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-fintech-software
- Instagram: www.instagram.com/itexus.soft
- Address: 8, The Green, STE road, Dover, DE 19901
2. EB Pearls
EB Pearls has its headquarters in Sydney and engineering teams abroad. Its fintech work includes payment infrastructure integrations, merchant interfaces, transaction reporting, and financial workflows. It worked on Rello, a real estate payment and finance platform. It also built custom tools connected to Nuvei's payment infrastructure.
Each project includes engineering management, business analysis, and account management. That setup suits funded startups building their first financial product and established businesses replacing an older platform. EB Pearls also builds mobile apps and cloud infrastructure, and keeps developing the product after launch.
Key Facts
- Core services: Fintech applications, payment integrations, product development, and cloud engineering.
- Relevant experience: Rello and Nuvei-related payment tooling.
- Client types: Funded startups, scale-ups, and established financial businesses.
- Location: Surry Hills, Sydney.
Contact Information
- Website: ebpearls.com.au
- Facebook: www.facebook.com/ebPearlsPtyLtd
- Twitter: x.com/ebpearls
- LinkedIn: www.linkedin.com/company/eb-pearls
- Instagram: www.instagram.com/ebpearlsweb
- Address: Suite 1A7, 410 Elizabeth Street, Surry Hills, NSW 2010, Australia
- Phone: 02 4005 0322
3. Appello Software
Appello Software builds mobile and web finance products and offers software development in Sydney. Its financial work covers banking apps, payment gateways, lending platforms, trading tools, and regulatory technology. Product strategy and interface design come first, so teams can settle requirements before paying for a full build.
Appello connects apps to core banking systems through APIs. It builds analytics and automated workflows on top. Its past work includes Advix, a mobile investment app. After release, Appello maintains and monitors both the app and its cloud environment.
Key Facts
- Core services: Digital advisory, product design, software development, and project support.
- Project types: Mobile banking, lending, payments, and investment applications.
- Relevant portfolio: Advix investment app.
- Market coverage: Sydney software development services.
Contact Information
- Website: appello.com.au
- E-mail: ua.moc.olleppa@olleh
- Facebook: www.facebook.com/appellosoftware
- LinkedIn: www.linkedin.com/company/appello-software
- Instagram: www.instagram.com/appello_software
- Phone: +61 2 7202 5164
4. EPAM
EPAM works with banks, payment providers, wealth managers, and fintech businesses. It has a Sydney office and a larger international delivery team. Its projects often combine software engineering with cloud migration, data work, and changes to existing enterprise systems.
EPAM builds products and platforms, integrates APIs, tests software, and modernizes old systems. Its financial services team covers retail and commercial banking, capital markets, wealth management, and open banking. That range helps when a new customer product depends on several internal platforms instead of standing alone.
Key Facts
- Core services: Platform development, systems integration, cloud engineering, and software testing.
- Financial sectors: Banking, payments, wealth management, and capital markets.
- Project focus: Financial platforms connected to enterprise systems and data.
- Location: Sydney office.
Contact Information
- Website: www.epam.com
- Facebook: www.facebook.com/EPAM.Global
- LinkedIn: www.linkedin.com/company/epam-systems
- Instagram: www.instagram.com/epamsystems
- Address: Rooms 1923@1928, Levels 19-21, 135 King Street, Sydney, NSW 2000, Australia
- Phone: +61 2 8310 8272
5. Thoughtworks
Thoughtworks helps banks and fintech scale-ups with software engineering, technology modernization, and new ways of working for development teams. In Australia, its financial services work covers banking, payments, wealth management, and insurance. It builds payment services and financial products while improving the systems and delivery practices behind them.
For TBC Bank, Thoughtworks helped adopt agile practices and change daily operations. This mix of engineering and organizational help suits a financial business that must fix its release process as well as its software. It also offers data, AI, and cloud services.
Key Facts
- Core services: Software engineering, platform modernisation, data, and AI.
- Financial focus: Banking, payment services, wealth management, and insurance.
- Relevant experience: Technology and delivery transformation for TBC Bank.
- Market coverage: Australian operations and international delivery.
Contact Information
- Website: www.thoughtworks.com
- E-mail: moc.skrowthguoht@su-tcatnoc
- Facebook: www.facebook.com/Thoughtworks
- Twitter: x.com/thoughtworks
- LinkedIn: www.linkedin.com/company/thoughtworks
- Instagram: www.instagram.com/thoughtworks
- Address: Level 14, 210 George Street, Sydney, New South Wales 2000
6. Appinventiv
Appinventiv builds financial software for banking, lending, investment, payments, and digital wallets. It offers fintech consulting as well as app and backend development. It has separate services for trading systems and insurance software. Its Australian office is in Stones Corner, Queensland, part of an international delivery network.
Sydney businesses comparing product partners can start with its wide range of financial apps. One project can cover a mobile interface, payment processing, and financial business logic. Appinventiv also offers cloud, data analytics, and AI services for the wider product.
Key Facts
- Core services: Fintech consulting, custom software, mobile applications, and cloud services.
- Project types: Lending systems, investment platforms, payment software, and wallets.
- Additional capabilities: Data analytics and AI development.
- Australian location: Stones Corner, Queensland.
Contact Information
- Website: appinventiv.com
- Twitter: x.com/appinventiv
- LinkedIn: www.linkedin.com/company/appinventiv
- Instagram: www.instagram.com/appinventiv
- Address: 96 Cleveland Street, Stones Corner, QLD 4120, Australia
- Phone: +61-7-5327-3322
7. Endava
Endava's finance and banking team covers retail banking, commercial banking, and capital markets. The international engineering company works on core modernization, financial data, and customer experience. It built a data dashboard for a large US bank. It also built a Google Cloud workflow system for a financial services organization.
These projects show Endava working on both customer services and internal operations. It can work with banking teams on architecture and delivery, and add cloud and automation skills. For a Sydney buyer, it is an international option for projects tied to established banking systems with many technical dependencies.
Key Facts
- Core services: Software engineering, core modernisation, cloud, and data solutions.
- Financial focus: Retail banking, commercial banking, and capital markets.
- Relevant project types: Financial dashboards and cloud-based operational workflows.
- Delivery: International engineering organisation.
Contact Information
- Website: www.endava.com
- Facebook: www.facebook.com/endava
- LinkedIn: www.linkedin.com/company/endava
- Instagram: www.instagram.com/endava
- Address: Riverside Centre, Level 8, 123 Eagle St, Brisbane, Queensland, 4000, Australia
- Phone: +61738332400
8. Cognizant
Cognizant has a Sydney office and a banking technology team covering digital banking, lending, payments, and core system integration. It modernizes payment hubs, builds real-time payments, and integrates Temenos systems. This helps financial businesses whose product plans require changes to established transaction infrastructure.
Cognizant also works on financial data and AI. In capital markets, it handles client onboarding, data integrity, and wealth management. It fits programs that span several banking functions. A Sydney organization can hire it for the engineering and integration work behind a larger change to financial operations.
Key Facts
- Core services: Banking technology development, payment modernisation, and systems integration.
- Specialist capabilities: Temenos integration, real-time payments, and financial data solutions.
- Financial sectors: Banking, capital markets, and insurance.
- Location: Barangaroo, Sydney.
Contact Information
- Website: www.cognizant.com
- E-mail: moc.tnazingoc@yriuqni
- Facebook: www.facebook.com/Cognizant
- Twitter: x.com/cognizant
- LinkedIn: www.linkedin.com/company/cognizant
- Instagram: www.instagram.com/cognizant
- Address: Level 37, International Tower 2, 200 Barangaroo Avenue, Sydney, NSW 2000, Australia
- Phone: +61 2 9223 3988
9. Capgemini
Capgemini works on digital banking, lending, cards and payments, and capital markets technology. It has offices in Sydney. Its financial services teams work on customer experience, data, cloud, and financial crime controls.
For Security Bank, Capgemini integrated six payment rails. That experience helps when a financial institution needs several transaction services to work together on one platform. Capgemini also helps lenders automate digital processes and helps wealth managers improve the investor and adviser experience. Its app work usually sits inside a larger banking transformation program.
Key Facts
- Core services: Banking technology transformation, payment integration, cloud, and data solutions.
- Financial focus: Payments, lending, capital markets, and wealth management.
- Relevant experience: Payment rail integration for Security Bank.
- Location: Sydney offices.
Contact Information
- Website: www.capgemini.com
- Facebook: www.facebook.com/CapgeminiAustralia
- LinkedIn: www.linkedin.com/company/capgemini
- Instagram: www.instagram.com/capgeminiaunz
- Address: Level 10 420 George Street Sydney New South Wales 2000
- Phone: +61 2 7227 0607
10. Infosys
Infosys builds and maintains applications for financial services. It also offers consulting, infrastructure, cloud, and risk technology services. It operates in Australia and New Zealand and draws on its global delivery organization for fintech work.
Established financial businesses have several ways to upgrade with Infosys. They can build new applications, modernize existing software, or connect systems through APIs and microservices. Infosys also offers quantitative finance and financial services cloud solutions. For companies with a large existing technology base, maintenance and new development can run in one program.
Key Facts
- Core services: Application development, maintenance, modernisation, and integration.
- Financial capabilities: Quantitative finance, cloud solutions, and risk-related technology.
- Project focus: Development and support across existing enterprise systems.
- Market coverage: Australia and New Zealand, with international delivery.
Contact Information
- Website: www.infosys.com
- Facebook: www.facebook.com/Infosys
- Twitter: x.com/infosys
- LinkedIn: www.linkedin.com/company/infosys
- Address: Level 3, 100 Arthur Street, North Sydney 2060, NSW, Australia
- Phone: +61 2 8912 1500
11. Wipro
Wipro supports banking projects in digital channels, credit services, payments, and core systems. Its Australia and New Zealand team covers financial services, superannuation, wealth, and insurance. ANZ Bank is among its clients in the region.
Cloud transformation and integration are at the center of its banking work. Wipro also manages and tests applications, which matters when new services must run next to systems already in production. For mortgages and lending, it offers the NetOxygen platform. Buyers should decide whether they need custom development or a project built on that existing product.
Key Facts
- Core services: Banking modernisation, integration, cloud services, testing, and application management.
- Financial focus: Core banking, payments, lending, and wealth management.
- Relevant platform: NetOxygen for lending.
- Market coverage: Australia and New Zealand.
Contact Information
- Website: www.wipro.com
- Facebook: www.facebook.com/WiproLimited
- LinkedIn: www.linkedin.com/company/wipro
- Instagram: www.instagram.com/wiprolimited
- Address: Level 19, 201 Kent St Sydney, 2000
- Phone: +61 2 8459 9350
12. HCLTech
HCLTech has an office in North Sydney and builds applications and platforms for financial services. Its work covers core banking modernization, cloud-ready applications, insurance technology, and capital markets systems. It also connects data, applications, and platforms in fragmented technology setups.
HCLTech automates the software lifecycle and runs monitoring and infrastructure operations. It suits financial institutions whose plans go beyond a single application. One program might rebuild a platform, migrate related systems, and improve how releases and production services are run.
Key Facts
- Core services: Application engineering, platform modernisation, cloud migration, and automation.
- Financial sectors: Banking, insurance, capital markets, and fintech.
- Project focus: Connected changes across software, data, and infrastructure.
- Location: North Sydney.
Contact Information
- Website: www.hcltech.com
- E-mail: moc.hcetlch@ua.lch
- Facebook: www.facebook.com/HCLTechOfficial
- Twitter: x.com/hcltech
- LinkedIn: www.linkedin.com/company/hcltech
- Instagram: www.instagram.com/hcltech
- Address: Level 8, 1 Pacific Highway, North Sydney, NSW 2060, Australia
13. NTT DATA
NTT DATA's Australian banking and financial services work includes payment infrastructure modernization, digital banking, lending, and wealth management. It pairs this industry work with application and product development, quality engineering, and application management.
On the customer side, NTT DATA builds mobile services, robo-advisers, and automated investment tools. Behind them, it works with mainframe and open-source platforms, cloud architecture, and data systems. It suits a financial business that needs a new service connected to existing operations and supported after launch.
Key Facts
- Core services: Application development, modernisation, quality engineering, and application management.
- Financial focus: Payments, lending, digital banking, and wealth management.
- Project types: Customer applications and supporting banking platforms.
- Market coverage: Australian services backed by international delivery.
Contact Information
- Website: www.nttdata.com
- Facebook: www.facebook.com/globalntt
- Twitter: x.com/nttdata_inc
- LinkedIn: www.linkedin.com/company/ntt-data-inc
- Instagram: www.instagram.com/nttdatainc
- Address: Level 1, 75 Pitt Street, AU-Sydney NSW 2000
14. Accenture
Accenture combines financial services consulting with technology delivery in core banking, payments, lending, and banking operations. For Commonwealth Bank of Australia, it rebuilt the bank's core foundation with SAP Transaction Banking on AWS. That project is a useful reference for organizations planning major changes to transaction processing and infrastructure.
Its open banking services run from business strategy through implementation and support. Accenture also designs digital lending and customer engagement programs using data and automation. Its size suits programs that involve technology, operating processes, and several business teams at once.
Key Facts
- Core services: Banking technology delivery, core modernisation, payments, and systems transformation.
- Financial focus: Banking, lending, open banking, and payment services.
- Relevant experience: Commonwealth Bank of Australia core banking transformation.
- Delivery: International consulting and technology organisation.
Contact Information
- Website: www.accenture.com
- Address: International House, 3 Sussex St, Barangaroo NSW 2000
- Phone: +61290055000
15. DXC Technology
DXC Technology builds and modernizes financial software for banks, asset managers, wealth firms, and other financial institutions. It offers bespoke software engineering and testing, trading and risk systems, reconciliation, and regulatory reporting. DXC Luxoft is part of its engineering capability.
DXC mixes custom work with established financial platforms. Hogan runs core banking. CoreIgnite exposes core services through APIs and coordinates real-time processes. DXC also implements and supports systems from fintech vendors. It fits international projects where new development must work closely with an existing core or trading platform.
Key Facts
- Core services: Custom software engineering, testing, platform integration, and legacy modernisation.
- Financial focus: Core banking, trading, risk, payments, and wealth management.
- Relevant platforms: Hogan and CoreIgnite.
- Delivery: International financial technology and engineering services.
Contact Information
- Website: dxc.com
- E-mail: moc.cxd@soroma.ttocs
- LinkedIn: www.linkedin.com/company/dxctechnology
- Instagram: www.instagram.com/dxctechnology
- Phone: 1-888-899-8037
Conclusion
Sydney businesses have a broad choice of fintech software development companies, from local engineering teams to global technology providers. The companies in this list cover different needs, including banking applications, payment integrations, lending platforms, core system modernisation, cloud migration, and financial data solutions. Some focus on product development, while others bring deeper experience with complex enterprise environments.
The best choice depends on the project scope, existing technology stack, required financial expertise, and level of ongoing support. Comparing relevant case studies, technical capabilities, delivery models, and experience with similar financial systems can help narrow the field and select a development partner suited to the project.