Open to opportunities

Musabir Musabayli

@musabirmusabayli

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Technical team lead specializing in mobile and backend systems, driving scalable fintech and chat solutions.

Azerbaijan

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What I'm looking for

I’m seeking a leadership role where I can design scalable mobile and backend systems, mentor engineers, and deliver high-quality fintech or communication products with strong CI/CD and performance focus.

I am a technical team lead with extensive experience in native Android and iOS development, Kotlin, Java and Spring Boot, building scalable fintech and chat systems. I lead cross-functional teams, design architectures, and drive CI/CD and performance improvements.

At Noacco and Kapital Bank I led mobile and backend efforts—delivering a 35% improvement in app responsiveness, 20% reduction in downtime, and initiatives that reduced crashes and sped loading times. I’ve implemented XMPP/Ejabberd chat backends, Web3-enabled services and microservices with Redis caching and Kafka where appropriate.

I focus on aligning technical solutions with business goals, ensuring code quality through reviews and testing, and improving customer experience by reducing reliance on branches. I bring hands-on development, system design, and leadership to delivery-focused engineering teams.

Experience

Work history, roles, and key accomplishments

Current

Technical Team Lead

Current

Kapital Bank

Mar 2024 - Present (1 year 7 months)

Lead Android development with Kotlin and MVI and contributed to Spring Boot backend services to design scalable systems and improve customer satisfaction by reducing branch visits.

Kotlin Android MVI Spring Boot Microservices Code Review CI CD Stakeholder Management

Senior Android Developer

Payonix

Jun 2020 - Feb 2025 (4 years 8 months)

Implemented native FinTech Android applications in Java using MVP architecture, reducing app crashes 30% and improving load times by 50% through performance optimizations.

Java Android Performance Tuning Async Programming Testing Crash Reduction

Technical Team Lead

Noacco LLC

Jul 2021 - Mar 2024 (2 years 8 months)

Led design and development of an advanced chat app backend using XMPP/Ejabberd and managed Kotlin, Swift, and React JS mobile/front-end work, improving responsiveness 35% and reducing downtime 20%.

Ejabberd XMPP Kotlin Swift React Backend Development Performance Optimization CI CD

Full Stack Software Developer

Bitboxlab OU

Feb 2020 - Jun 2021 (1 year 4 months)

Designed a cross-platform chat app with Xamarin Forms and built a secure crypto wallet backend in Java Spring Boot leveraging Web3 technology for decentralized communication.

Xamarin C++Java Spring Boot Web3 Cross Platform Development Backend Development & Security

Backend Developer

University of Tartu

Sep 2019 - Dec 2020 (1 year 3 months)

Designed and implemented the Estonian government pension calculation backend in Java Spring Boot and increased API response speed 200% by adding Redis caching.

Java Spring Boot Redis API Design CI CD Load Testing Documentation Integration Testing

Backend Developer

1Termin

Oct 2018 - Jun 2019 (8 months)

Designed and developed a robust Java Spring Boot backend for a large booking system and produced solution architecture documentation for project guidance.

Java Spring Boot System Design API Development Architectural Documents Backend Engineering

Android Developer

Voida Technology LLC

Sep 2017 - Jul 2018 (10 months)

Developed a high-performance Java service to parse HTML games for an Android mobile app, improving app content processing efficiency.

Java Android HTML Parsing Performance Optimization Mobile Development Services)

Android Developer

Avirtel LLC

Mar 2017 - Sep 2017 (6 months)

Developed a customer-focused native Android app in Java for public and private event organizations, aligning features to user needs.

Java Android Requirements Gathering Testing

Adapter Developer

Appility AG

Oct 2016 - Jan 2017 (3 months)

Developed Java services to migrate large datasets from non-relational to relational databases and created REST APIs for data retrieval and manipulation.