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I need a production-ready Android finance application that will easily clear a formal security review. I will hand over the compliance matrix, API partner documentation, and branding assets; your job is to transform them into a polished, secure app that covers: • On-boarding with KYC checks and biometric login (fingerprint / face). • Encryption at rest and end-to-end TLS in transit. • Account dashboard showing real-time balance updates with a detailed breakdown of holdings. • Searchable transaction history pulled via partner APIs. • Full audit trail—every critical user action logged immutably for future audits. The build must follow modern Android best practices (Kotlin preferred, Jetpack, MVVM, OWASP Mobile Top 10 mitigation) and ship with reproducible builds, unit/instrumentation tests, and straightforward CI/CD scripts so the codebase passes static analysis without surprises. Deliverables 1. Source code repo with clear README and build instructions. 2. Signed release APK / AAB ready for Play Console upload. 3. Security documentation: data-flow diagram, crypto choices, threat model, and test results. 4. Post-deployment support to fix any issues flagged during external pentesting. I will provide test accounts for the KYC and banking APIs, along with compliance guidance. Please outline your proposed tech stack, prior security-focused Android projects, and estimated timeline.
Project ID: 40695517
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199 freelancers are bidding on average $31 USD/hour for this job

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have earned 'Expertise' level in AI development and used many AI platforms like openAI, Freepik, Antigravity, Cursor etc for App development and other AI work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$25 USD in 40 days
9.6
9.6

Hello, Regarding your project i would like to discuss features of app’s in detail. i am a native Android applications developer with over 8 years of experience developing Android mobile applications. I have completed more than 515 projects. I am confident that I will provide you with quality work and the best software services. Let's chat to proceed.
$25 USD in 40 days
8.9
8.9

A Warm Hello! We are readily available to start working on this project! We are a team of experienced Android and fintech application developers specializing in secure, production-grade mobile applications where security, compliance, auditability, and reliability are first-class requirements. We would be happy to begin by reviewing your compliance matrix and partner API documentation, then provide a detailed technical architecture and implementation plan before development starts. Our goal is straightforward: deliver a polished financial application that is secure by design, testable, auditable, maintainable, and ready for formal security assessment—not an MVP that needs to be hardened later. Best regards, Ana
$25 USD in 40 days
9.0
9.0

Hello We are Ominfowave Software Services Pvt. Ltd., and we have an expert mobile application development team with 10+ years of experience in building reliable, high-quality apps. ? Our Core Expertise •Android App Development (Kotlin / Native) •iOS App Development •Flutter & FlutterFlow (Cross-platform) Our team understands not just development, but also performance, user experience, scalability, and timely delivery. ? What We Can Deliver ✔ Social media integrations (Facebook, Google, Twitter, etc.) ✔ Google APIs (Maps, Places, FCM, YouTube, Analytics) ✔ Offline & cloud database solutions (SQLite, MySQL, Realtime DB) ✔ Secure payment integrations (Stripe, PayPal, Braintree) ✔ Ad monetization (AdMob, Appodeal, MobVista) ✔ In-App Purchases ✔ Location tracking & real-time features ✔ Chat & messaging applications ? App Types We’ve Built •Social Media Apps •Shopping & eCommerce Apps •Job Portals •Taxi / Carpooling Apps •VPN & Utility Apps •Travel & Booking Apps •Live Streaming Apps •AI & Machine Learning–based Apps ? Why Work With Us •10+ years of hands-on experience •Clean, scalable & secure code • Clear communication & regular updates • On-time delivery with quality assurance • Long-term support after project completion We would love to work with you and build a long-term, trusted business relationship. Let’s discuss your idea and turn it into a successful application Warm regards, Vishal Nasit Ominfowave Software Services Pvt. Ltd.
$25 USD in 56 days
8.4
8.4

Hi there, I can help turn your compliance matrix and partner APIs into a secure, production-ready Android finance app that is straightforward to review and maintain. My focus would be Kotlin with Jetpack and MVVM, keeping the codebase lean and testable while covering KYC onboarding, biometric login, encrypted local storage, TLS hardening, real-time balance views, searchable transaction history, and an immutable audit trail. I’ve delivered mobile apps with API integrations and security-sensitive workflows, so I’m used to building with release-quality checks in mind rather than polishing later. I’d also provide reproducible builds, unit/instrumentation tests, clear README and security documentation, plus a signed APK/AAB ready for Play Console. If you share the docs and test accounts, I can align the implementation to your review requirements and support any fixes found during pentesting.
$25 USD in 35 days
7.9
7.9

Hello, I have finance app to manage the finances, outstanding receivables and income/expense manager. It also have biometric capabilities via fingerprint and face. I can take care of compliance and security checks mentioned in project brief. Lets discuss
$25 USD in 40 days
8.3
8.3

As an experienced mobile app developer with a keen understanding of Android's security landscape and application architecture (including Kotlin, Jetpack, MVVM), I believe I am the right fit for this project. Notably, I've successfully built and launched several Android financial apps with secure logins, real-time balance updates, transaction history retrieval using varied APIs, and bulletproof encryption mechanisms. The enthusiasm in creating secured projects is reconfirmed by the fact that I possess excellent knowledge on securing mobile applications according to OWASP Mobile Top 10 mitigation standards. Additionally, my experience with previous secured projects has given me a wealth of insight into useful third-party integrations for steering data security forward. I have worked closely with banking systems' APIs that had similar KYC requirements as well. Based on this experience, my proposed tech stack would include proven libraries and elements like OkHttp3 and Retrofit to handle API calls and data encryption using AES encryption combined with the Jetpack Security Library. Moreover, my dedication doesn't stop at delivering production-grade applications; it extends to further ensuring the safety of the applications I deliver. As such, I will provide rigorous post-deployment support to address any issues flagged during external pentesting and continue refining the app until you are fully satisfied.
$30 USD in 40 days
7.5
7.5

With over a decade of experience as a prolific full-stack software engineer, I am more than capable of delivering your secure Android finance app to the highest industry standards. My proficiency in Android and Kotlin would effortlessly align with your preferred tech stack. In addition, my extensive knowledge and practice in API Integration, Java, and Mobile App Development would be invaluable in accomplishing key app functionalities such as KYC checks, biometric login, encryption protocols and partner API integration for transaction data. My previous projects demonstrate my consistent adherence to best practices including systematic deployment of MVVM architecture, OWASP Mobile Top 10 mitigation strategies, and also thorough unit/instrumentation tests to ensure application robustness. I am confident in employing these measures as well as delivering reproducible builds and simple CI/CD scripts for your project. The final product will not only cover the required functionalities but also possess detailed security documentation: data-flow diagram, crypto choices, threat model, and test results - vital for clearing a formal security review. Your app will receive daily attention from me ensuring not just its successful completion but also its continued success in the long run. Investing in me means investing in a secure, relevantly built app that meets your compliance requirements. I look forward to hearing from you soon!
$30 USD in 40 days
7.8
7.8

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Java, Copywriting, Mobile App Development, Android, Copy Typing, Mobile App Testing, Kotlin, Security, API Integration, CI/CD and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$30 USD in 5 days
7.2
7.2

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert
$25 USD in 40 days
7.0
7.0

Hello,I can build your production-ready Android finance application with security, compliance and maintainability treated as core requirements from day one, rather than adding security at the end. I have experience with Kotlin, Jetpack, MVVM, secure API integrations, authentication, financial workflows, testing and CI/CD. I can work directly from your compliance matrix, API documentation and security requirements. Key implementation: • KYC onboarding with secure biometric authentication • Kotlin + Jetpack + MVVM architecture • Encrypted local data storage and TLS-secured API communication • Real-time account/holding dashboard with partner API integration • Searchable transaction history • Immutable audit logging for critical actions • Secure token/session management and input validation • OWASP Mobile Top 10 mitigation • Unit, UI/instrumentation and security-focused testing • Static analysis integrated into CI/CD • Reproducible builds and Play Console-ready AAB Proposed stack: Kotlin, Jetpack Compose/XML as appropriate, MVVM/Clean Architecture, Coroutines, Retrofit/OkHttp, Room, Android Keystore, biometric APIs, and Git-based CI/CD. I’ll also provide the requested data-flow diagram, threat model, cryptography decisions and test/security results, followed by post-deployment support for issues identified during external penetration testing. Estimated timeline: 3 weeks, depending on KYC/banking API complexity and compliance scope.
$25 USD in 40 days
7.7
7.7

Hello, I can build your finance application as a production-ready, security-first Android app designed around your compliance matrix and API requirements. Tech stack: Kotlin, Jetpack Compose, MVVM/Clean Architecture, Coroutines/Flow, Retrofit/OkHttp, Room, Hilt, Android Keystore, BiometricPrompt, and WorkManager. TLS 1.3 with certificate pinning where appropriate, encrypted local storage, secure token handling will be incorporated. The app will cover KYC onboarding, biometric authentication, real-time account/holdings dashboards, searchable transaction history, and an immutable audit trail. Security documentation will include architecture/data-flow diagrams, threat modeling, cryptographic decisions, and security-test results. I’ll provide clean, documented source code, reproducible builds, signed APK/AAB, automated unit/UI/instrumentation tests, static analysis, and CI/CD scripts. Post-deployment support will address issues identified during external penetration testing. Timeline: approximately 10–14 weeks, depending on API complexity and compliance requirements: • 1–2 weeks: architecture, security review & API integration plan • 3–5 weeks: onboarding, KYC, authentication & core finance features • 2–3 weeks: transactions, audit logging & security hardening • 2–3 weeks: testing, CI/CD, documentation & release I have experience with Kotlin/Android, secure authentication, API integrations, and production mobile development, and will prioritize security and auditability.
$30 USD in 40 days
6.9
6.9

Hi, Mateo here, from Toronto, to help you build this out. A finance app only clears a real security review if the architecture is built for the audit before a single screen is designed, not patched in after. I'd structure this in Kotlin with Jetpack and MVVM from the start, biometric login layered on top of KYC, TLS end to end, encryption at rest, and every critical action writing to an immutable audit log as it happens rather than bolted on later. Static analysis, unit and instrumentation tests, and CI/CD get wired in early so nothing surprises you at review time. I've built API-integrated systems with this level of data sensitivity before and know how to keep the codebase clean enough that a pentester finds nothing interesting. Do you have the compliance matrix and partner API docs ready to hand over now, or should the first sprint be built against mocked endpoints while that gets finalized?
$40 USD in 40 days
6.3
6.3

Hi, I’ve reviewed your requirements and can build a secure, production-ready Android finance app using **Kotlin, Jetpack, MVVM/Clean Architecture, Hilt, Coroutines/Flow, Retrofit, Room, Android Keystore and BiometricPrompt**. The app will include secure KYC onboarding, fingerprint/face authentication, real-time balance and holdings, searchable transaction history, partner API integration, secure session/token handling, and an immutable audit trail for critical actions. Security will be built in from day one with **TLS 1.2/1.3, encrypted local storage, certificate pinning where required, OWASP Mobile Top 10 mitigation, secure logging, input validation and dependency/security scanning**. I’ll deliver unit/instrumentation tests, static analysis, reproducible builds and CI/CD scripts. Security documentation will cover the **data-flow diagram, cryptographic choices, threat model, security controls and test results**. Deliverables include the complete source repository with README, signed APK/AAB ready for Play Console, security documentation, and post-deployment support for external pentest findings. We have experience developing secure mobile applications involving sensitive data, authentication, APIs and payment workflows. **Estimated timeline: 3-4 weeks**, including development, testing, hardening and release preparation. I’m ready to work with your compliance matrix, API documentation and branding assets. Happy to assist you.
$25 USD in 40 days
7.0
7.0

Hello there, Hope you are doing well I can build your production-ready Android finance application with security and auditability designed into the architecture from day one. I’ll work from your compliance matrix, API partner documentation and branding assets to deliver a polished Kotlin application that is ready for formal security review and external penetration testing. Key Features Secure KYC onboarding through partner APIs Fingerprint/Face biometric authentication Secure account/session management Real-time balance and holdings dashboard Detailed portfolio/holding breakdown Searchable transaction history Partner API integration with robust error handling Immutable audit trail for critical user actions Secure logout/session expiry Network and API security controls Comprehensive validation and error handling Recommended Tech Stack Language: Kotlin UI: Jetpack Compose + Material 3 Architecture: MVVM + Clean Architecture Networking: Retrofit + OkHttp Authentication: OAuth2/JWT as supported by partner APIs Biometrics: Android BiometricPrompt Secure Storage: Android Keystore + encrypted local storage Database: Room where local persistence is required Security: TLS, certificate pinning where appropriate, OWASP Mobile Top 10 controls Testing: JUnit + Espresso/Compose UI tests + instrumentation tests CI/CD: GitHub Actions / GitLab CI Static Analysis: Android Lint + Detekt Monitoring: Crash reporting and security-aware logging Thanks & Regards Dheeraj K.
$25 USD in 40 days
7.0
7.0

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
$25 USD in 40 days
6.6
6.6

Hey, For a finance app going through formal security review, the architecture needs to make security properties demonstrable rather than relying on isolated safeguards. I can structure the Android client around Kotlin, Jetpack and MVVM, with secure credential and biometric handling, encrypted local data, TLS protected API communication, controlled session state, and an audit model designed around traceability. The compliance matrix and partner API documentation should drive the implementation boundaries, while OWASP Mobile Top 10 coverage, static analysis, unit and instrumentation testing, reproducible builds, and CI checks can be treated as release gates. I’d also document the data flows, cryptographic decisions, threat model, and security test evidence so the external review has something concrete to validate. Which KYC and banking API providers are being used, and is the compliance matrix already finalized?
$55 USD in 40 days
5.9
5.9

Hello, Is Kotlin your preferred language for this app? Have you already chosen a partner for the biometric login? Exciting to build your finance app! I'll focus on creating a secure, user-friendly experience, ensuring it meets rigorous security standards. Addressing potential audit trail complexities, I plan to implement a robust logging system that guarantees all critical actions are immutably recorded. I'll send examples of past security-focused projects in chat. I prefer discussing timelines and costs once we've reviewed the details together. Looking forward to a quick chat to explore your vision and map out the next steps! Feel free to message me anytime.
$25 USD in 40 days
5.8
5.8

Hi, I’m interested in developing your secure Android finance application. I have experience with **Kotlin, Java, MVVM architecture, REST APIs, Firebase, and production mobile applications**, and I understand the importance of security and compliance for financial applications. ### Proposed stack * Kotlin + Jetpack Compose/XML * MVVM / Clean Architecture * Retrofit + OkHttp for secure API communication * Android Keystore for cryptographic key protection * Encrypted local storage where appropriate * BiometricPrompt for fingerprint/face authentication * TLS for all network communication * OWASP Mobile Top 10 security practices * Git-based CI/CD with automated testing and static analysis I would implement KYC and banking APIs according to your partner documentation, real-time account data, searchable transaction history, and secure audit logging based on the required backend architecture. Deliverables would include clean source code, reproducible build instructions, release-ready AAB/APK, unit and instrumentation tests, CI/CD configuration, and security documentation covering data flows, threat considerations, and security controls. I’m also comfortable working with external security-testing feedback and fixing legitimate issues identified during penetration testing. I would be happy to review the compliance matrix and API documentation to propose the implementation approach and milestones.
$25 USD in 40 days
5.9
5.9

Hi i can show you my similar live published finance platforms, The biggest priority here is passing a formal security review, not simply getting the finance app working. KYC and biometric flows, sensitive financial data, partner APIs, and immutable audit logging all need careful threat modelling and implementation from the start. I would build this in Kotlin with Jetpack and MVVM, applying OWASP Mobile Top 10 practices, strong encryption, secure API communication, and least privilege throughout. I have worked on security sensitive Android applications involving authentication, encrypted data, API integrations, audit logging, automated testing, and CI pipelines. I can provide reproducible builds, unit and instrumentation tests, security documentation, static analysis, and a signed AAB ready for Play Console. I would also keep the architecture reviewable so external pentesting findings can be addressed without disrupting the core system. Can you share the compliance matrix so i can map the security requirements to the implementation and timeline?? PS: You’ll get competitive rates with the quality you deserve. After discussing your requirements ican suggest the best scalable approach and provide an estimated timeline and cost. NOTE: I have carefully gone through your project details and can assuredly deliver what you require. My portfolios, https://www.freelancer.pk/u/zainalitariq245 Looking forward to discussing your project further. Best Regards, Zain A.
$25 USD in 40 days
6.5
6.5

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