Senior Android Developer (Fintech)

Location: Bulgaria; remote. The product is used by business owners across Europe.

Company

hirify.global is a fintech product company building business banking, payments, card management, and AI-enabled accounting solutions.

What you will do

• Design and build Android features for multi-account cash flow management, banking transactions and payments, physical and virtual cards, and AI-powered accounting automation.
• Build responsive interfaces with Jetpack Compose and own code quality, performance, stability, automated testing, and code reviews.
• Collaborate with Backend, QA, Design, Product, Mobile, ML/AI, and other cross-functional specialists to develop features end to end.
• Drive technical decisions, challenge assumptions, identify product and engineering improvements, and mentor engineers.
• Contribute to CI/CD pipelines, tooling, and mobile engineering best practices.

Requirements

• 5+ years of commercial Android development experience and a proven record of shipping products.
• Strong Kotlin knowledge; clear communication in English across technical and non-technical audiences.
• Deep understanding of OOP, SOLID, and Clean Architecture.
• Solid experience with presentation patterns including MVI, MVVM, and MVP, with the ability to select the appropriate approach for the context.
• Hands-on experience with RxJava, Kotlin Coroutines and Flow; Dagger 2, Hilt, or Koin; Retrofit; Cicerone or Jetpack Navigation Component; and Jetpack Compose.
• Practical experience with Firebase, including FCM, Analytics, and Crashlytics.
• Production experience with feature-module architecture.
• Confidence with Git and GitLab, including setting up and maintaining GitLab CI/CD.
• A product-builder mindset, ownership of user outcomes, pragmatic decision-making, clear cross-disciplinary communication, and ability to work in a cross-functional environment.

Nice to have

• Java knowledge.
• Fintech or financial-products experience.
• Mobile security best-practice knowledge.
• Experience profiling and optimizing UI performance, including reducing overdraw, improving Jetpack Compose recomposition efficiency, and achieving smooth 60/120fps rendering.
• Experience with Android Profiler, Perfetto, Baseline Profiles, or similar tools.
• Published Google Play applications and an active GitHub profile with shareable code.
• Experience with AI agents, LLM tools, and AI-powered IDE tools such as Claude, Cursor, Copilot, Windsurf, or Claude Code, including agent environments, prompts, skills, behavioral rules, agent mode, rules-file configuration, and workflow integration.
• Understanding of model capabilities and limitations, context-window management, and selecting models for specific tasks.
• Ability to evaluate and verify AI-generated output with automated tests, linters, and critical review.
• Awareness of AI security risks including prompt injection, data leakage, and safe handling of untrusted inputs in agentic workflows.

Culture & Benefits

• Remote work from Bulgaria and work in the EU.
• Opportunity to make a genuine impact on the product.
• Stock options.
• Ongoing support and care.
• Work & Swim program.

Hiring process

• Talent Partner Interview.
• First Technical Interview and Mobile System Design Interview.
• Team Fit peer interview followed by an offer.