Senior Android Developer (FinTech/Blockchain Project) at Sigma Software

Lviv, Lviv Oblast, Ukraine -

Full Time

Start Date

Immediate

Expiry Date

20 Jan, 26

Salary

0.0

Posted On

22 Oct, 25

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Android Development, Kotlin, Jetpack Compose, NFC, QR Code Integration, Blockchain, SOLID Principles, Clean Architecture, Modularization, Reusable Components, Cross-Functional Collaboration, Attention to Detail, Emerging Technologies

Industry

Software Development

Description

Company Description Imagine building a mobile-first platform that could replace payment cards, loyalty cards, and even business cards with one sleek digital identity that works anywhere. This is your chance to join a cutting-edge FinTech/blockchain project as a Senior Android Developer, working fully remotely with a talented, globally distributed team. At Sigma Software, we are passionate about creating solutions that shape the future. In this role, you’ll work on a product with global reach that combines blockchain, NFC, and QR technologies to deliver secure identity verification and instant transactions. Why join us? You’ll be part of an innovative environment where your expertise will directly contribute to a product poised for mass adoption, offering career growth, exposure to advanced technologies, and the opportunity to make a real impact. CUSTOMER Our client is a leading FinTech/blockchain company specializing in digital identity solutions that integrate payments, loyalty programs, and enterprise networking. Their mission is to replace physical cards with a secure, interoperable digital identity usable across multiple sectors. At the intersection of FinTech, retail, and enterprise networking, they are driving innovation with blockchain, NFC, and QR technologies to deliver seamless and secure user experiences. PROJECT You’ll work on a mobile-first platform powered by blockchain, NFC, and QR technology, integrating retail loyalty programs and enterprise networking tools. This solution enables users to instantly share verified contacts, payments, and rewards. This is a unique opportunity to contribute to a product that blends hardware and software integration, has global scalability, and offers diverse use cases across industries. Key technologies: Android Native, Kotlin Multiplatform (KMP), Jetpack Compose, NFC, QR code integration, and blockchain infrastructure. Job Description Design, develop, and maintain high-quality native Android applications Implement SOLID principles and Clean Architecture patterns Build modular, reusable components and design systems Collaborate with cross-functional teams including iOS, Back-end, and product Work on blockchain-integrated features, NFC, and QR-based interactions Qualifications 5+ years of experience in native Android development Strong knowledge of SOLID principles and Clean Architecture Proficiency in Jetpack Compose Experience with modularization and reusable components Experience with Android Native or Kotlin Multiplatform (not React Native or Flutter) Upper-Intermediate level of English or higher WOULD BE A PLUS Experience with crypto wallets Experience with video processing or streaming features Additional Information PERSONAL PROFILE Proactive and self-driven Strong attention to detail Collaborative team player Comfortable working in a distributed team environment Passionate about emerging technologies

Responsibilities

Design, develop, and maintain high-quality native Android applications while implementing SOLID principles and Clean Architecture patterns. Collaborate with cross-functional teams to work on blockchain-integrated features and NFC/QR-based interactions.