Jobs Mobile

We are seeking a highly skilled Senior iOS Developer proficient in Swift to join our dynamic team. As a Senior iOS Developer, you will be responsible for designing and implementing advanced applications for our utility suite on iOS devices. Your expertise will play a crucial role in enhancing our product functionality, performance, and overall user experience.

This is a project-based engagement (up to 3 months) with flexible working hours

Responsibilities:

• Design and build advanced applications for the iOS platform using Swift from a scratch
• Collaborate with cross-functional teams to define, design, and ship new features.
• Unit-test code for robustness, including edge cases, usability, and reliability.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Ensure the performance, quality, and responsiveness of applications.
• Mentor junior developers and assist in their professional growth.

Requirements:

• Proven experience as an iOS Developer, with at least 5 years of experience in Swift  and launching iOS applications from scratch, including architecture design, implementation, testing, and App Store deployment.
• Solid understanding of the full mobile development life cycle.
• Experience with Core Data for local data storage and offline support.
• Experience with Vision framework for image analysis and processing.
• Experience with third-party libraries and APIs.
• Strong knowledge of iOS UI design principles, patterns, and best practices.
• Experience working with remote data via REST and JSON.
• Excellent problem-solving skills and analytical thinking.
• Ability to work independently and as part of a team in a fast-paced environment.
• Familiarity with PhotoKit and Image I/O is a plus.

Preferred Qualifications:

• Experience with Agile development methodologies.
• Familiarity with cloud message APIs and push notifications.
• Published applications on the App Store.
• Contributions to open-source projects.

We are looking for an experienced and highly skilled Senior React Developer / Senior Front-End Developer to join our growing team. The ideal candidate will have strong expertise in building modern, scalable, and high-performance web and mobile applications using React technologies, along with experience working with Vue.js applications.

You will work closely with designers, product managers, and back-end developers to create seamless user experiences across web and mobile platforms. This role requires strong technical knowledge, attention to detail, and the ability to take ownership of front-end architecture and development.

Key Responsibilities

• Develop and maintain responsive web applications using React.js and Vue.js.
• Build and support mobile applications using React Native.
• Collaborate with UI/UX designers to implement modern and user-friendly interfaces.
• Write clean, scalable, and maintainable code following best practices.
• Optimize applications for maximum speed, performance, and scalability.
• Integrate APIs and work closely with back-end developers.
• Participate in code reviews, debugging, and technical problem-solving.
• Ensure cross-browser and cross-device compatibility.
• Contribute to front-end architecture and technical decision-making.
• Stay updated with the latest front-end technologies and development trends.

Requirements

• 5+ years of experience in front-end development.
• Strong expertise in React.js and modern JavaScript (ES6+).
• Experience working with Vue.js.
• Experience building mobile applications using React Native.
• Solid understanding of HTML5, CSS3, TypeScript, and responsive design principles.
• Experience working with REST APIs and third-party integrations.
• Familiarity with state management libraries such as Redux, Zustand, Vuex, Pinia, or Context API.
• Experience with Git and collaborative development workflows.
• Strong problem-solving skills and attention to detail.
• Ability to work independently in a remote environment.
• Good communication and teamwork skills.

Nice to Have

• Experience with Next.js or modern React frameworks.
• Familiarity with Nuxt.js for Vue applications.
• Familiarity with mobile app deployment processes for iOS and Android.
• Understanding of performance optimization and testing frameworks.
• Experience working in agile development environments.

Our Client - European product-oriented company in the energy and mobility domain is looking for a Flutter Developer to join the team working on a customer-facing mobile application. The role focuses on the development and maintenance of a mobile product, including implementation of frontend solutions, participation in feature planning, and close collaboration with cross-functional teams to deliver seamless and user-friendly experiences.

Important:
• 6-month project with partial on-site presence in Norway
• Part-time involvement (50%)
• Relocation and travel-related support can be discussed

Responsibilities

• Develop and maintain mobile applications using Flutter (Dart)
• Build responsive, user-friendly UI solutions following modern frontend best practices
• Participate in technical discussions, solution design, and feature planning
• Improve frontend architecture and maintain build pipelines
• Write and maintain tests to ensure code quality and application stability
• Collaborate closely with backend engineers, designers, and product stakeholders

Requirements

• 3+ years of commercial experience with Flutter / Dart
• Strong understanding of mobile application architecture and frontend best practices
• Experience integrating APIs and backend services
• Experience with Git / GitHub
• Ability to work independently and proactively
• Strong communication and collaboration skills
• English level sufficient for daily communication in an international environment

Nice to Have

• Experience with CI/CD pipelines
• Experience building scalable consumer-facing applications
• Background in energy, IoT, or mobility-related products

This opportunity would fit a strong Middle or Senior-level engineer who enjoys building reliable products with real-world impact.

We are looking for a Middle Swift (iOS) Developer to join our team and contribute to building a part of digital wealth management app.

DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across FinTech, MedTech, SaaS, etc.

With years of experience in web and mobile development, UI/UX design, Quality Assurance, AI, and machine learning, we pride ourselves on creating impactful products that drive success for our clients.

Since 2018, we have successfully completed over 250 projects.
Examples of our work across various domains can be found on our website - https://www.darly.solutions/

We leverage cutting-edge technologies to craft powerful, forward-thinking solutions tailored to our clients’ needs. Our team is proficient in a diverse range of tools, including Angular, NestJS, React, Vue, PHP, Ruby, NodeJS, and many others.

Requirements:

• Develop and maintain iOS applications using Swift;
• Collaborate with cross-functional teams to define, design, and ship new features;
• Ensure performance, quality, and responsiveness of applications;
• Debug and resolve technical issues, improve application stability;

• Integrate APIs.

   

Responsibilities:

• 2-3 years of experience in iOS development;
• Strong knowledge of Swift and iOS SDK;
• Experience with RESTful APIs and JSON;
• Understanding of mobile app architecture patterns (MVC, MVVM);
• Familiarity with version control systems (Git);
• Experience with UI frameworks (UIKit; SwiftUI is a plus);
• English level: Intermediate / Upper-Intermediate (for communication with the client);
• Publishing apps in the App store.

About the role

You will be a Core Developer in our product team, taking charge of developing and scaling our mobile product. This is a high-impact position where you’ll be involved in the entire product lifecycle: from building core product features and modern UIs to designing a reliable, fast, and efficient infrastructure around it. You’ll work directly day-to-day with the General Manager and have a clear, measurable impact on the product’s unit economics.

Technical stack: AI-driven Engineering, Flutter, Node, TS, React.

We are open to candidates with no prior Flutter experience.

What you need for this position

• You’re an AI-augmented engineer. You actively use tools like Copilot, Cursor, or Claude to speed up your routine, refactor efficiently, and solve problems faster.
• At least 5 years of hands-on experience as a Software Engineer (designing & developing both mobile (primarily) and web applications).
• You communicate openly and feel comfortable in a fast-paced agile team where things can change rapidly.
• You’re a truly product-oriented engineer. You don’t just write code in a vacuum — your technical decisions are always driven by real product and engineering metrics, keeping business goals in mind.
• You can solve product and business problems end-to-end completely solo. You know how to take a high-level problem description and turn it into an efficient, working engineering solution without needing someone to hold your hand.
• Familiarity with Google Cloud Platform, particularly Firebase services including Firestore, Storage, and Performance, as well as experience with Firebase Flutter SDK, Bloc, and Hive storage.
• Hands-on experience building backend (Node.js and Lambda preferred). We value any strong backend background; if you haven’t used our specific stack, we expect you to bridge the gap using AI tools and a high “speed of learning” to ship production-ready code.

What You’ll Be Doing

• Design, build, and maintain mobile app and its infra using Flutter and a Node.js backend. Develop and optimize web-frontend (marketing funnels).
• Leverage AI tools (Cursor, Copilot, etc.) to accelerate development, refactor code, and maintain high code quality.
• Take an active role in product management: monitoring how users interact with your features and identifying areas for improvement. You will analyze user flow through marketing funnels, identifying drop-off points and technical bottlenecks that affect conversion. You won’t just wait for tasks; you’ll proactively suggest tech improvements based on data insights.
• Design and implement A/B tests to validate hypotheses, working closely with the product team to optimize core metrics.
• Build a robust, scalable infrastructure.
• Work directly with the General Manager and marketing team to align engineering efforts with business growth and scalability.

Hiring Process

Stage 1: Interview with HR (1h).

Stage 2: Interview with VP of Engineering.

Stage 3: Technical interview.

Stage 4: Interview with the team.

What we offer for your success

• Very warm and friendly working environment and flexible working schedule.
• 20 days off + paid national holidays, and 12 sick days paid by the company per year.
• Medical insurance, and health protection programs (with COVID-19 and dental coverage).
• Continuous professional development and growth opportunities.

Founded in 2021, Codefinity has quickly become a go-to platform for tech education, already trusted by hundreds of thousands of learners worldwide. We are building the ultimate ecosystem for people to break into tech—from coding and data analysis to machine learning. Our goal is ambitious: to empower millions of users globally through accessible technology.

As we scale, we are looking for iOS Developer to join our mission!
 

Key Responsibilities:
 

• iOS Application Development: Design and build the next generation of the Codefinity iOS app using Swift and Kotlin Multiplatform.
• Architecture & Code Quality: Drive high-level architectural decisions while ensuring the codebase remains clean, scalable, and high-performing.
• CI/CD Optimization: Refine and maintain automated pipelines for testing, delivery, and release to ensure a seamless deployment cycle.
• Feature Ownership: Collaborate with product and design teams to implement intuitive features that enhance the learning experience.
   

Required Qualifications:
 

• Education: Bachelor’s or Master’s degree in Computer Science, IT, or a related technical field.
• Engineering Excellence: Solid experience in software design with a focus on writing extensible, modular, and maintainable code.
• Swift & KMM Expertise: Proven hands-on experience in iOS development, with a strong understanding of Kotlin Multiplatform (KMP/KMM) and the nuances of shared vs. platform-specific logic.
• Mobile APIs & Data: Proficient in consuming RESTful APIs and managing local data persistence and synchronization (offline-first experience is a plus).

• CI/CD & Automation: Practical experience with Fastlane and CI/CD tools to automate mobile build and release workflows.

   

  What do we offer:

• Work within an ambitious team on a socially impactful education product.
• 20 working days of paid vacation per year, plus public holidays.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Company doctor and massage in the office.
• Sports activities: running, yoga, boxing, and more.

Founded in 2021, Codefinity has quickly become a go-to platform for tech education, already trusted by hundreds of thousands of learners worldwide. We are building the ultimate ecosystem for people to break into tech—from coding and data analysis to machine learning. Our goal is ambitious: to empower millions of users globally through accessible technology.

As we scale, we are looking for iOS Developer to join our mission!
 

Key Responsibilities:
 

• iOS Application Development: Design and build the next generation of the Codefinity iOS app using Swift and Kotlin Multiplatform.
• Architecture & Code Quality: Drive high-level architectural decisions while ensuring the codebase remains clean, scalable, and high-performing.
• CI/CD Optimization: Refine and maintain automated pipelines for testing, delivery, and release to ensure a seamless deployment cycle.
• Feature Ownership: Collaborate with product and design teams to implement intuitive features that enhance the learning experience.
   

Required Qualifications:
 

• Education: Bachelor’s or Master’s degree in Computer Science, IT, or a related technical field.
• Engineering Excellence: Solid experience in software design with a focus on writing extensible, modular, and maintainable code.
• Swift & KMM Expertise: Proven hands-on experience in iOS development, with a strong understanding of Kotlin Multiplatform (KMP/KMM) and the nuances of shared vs. platform-specific logic.
• Mobile APIs & Data: Proficient in consuming RESTful APIs and managing local data persistence and synchronization (offline-first experience is a plus).

• CI/CD & Automation: Practical experience with Fastlane and CI/CD tools to automate mobile build and release workflows.

   

  What do we offer:

• Work within an ambitious team on a socially impactful education product.
• 20 working days of paid vacation per year, plus public holidays.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Company doctor and massage in the office.
• Sports activities: running, yoga, boxing, and more.

🔴 about the company
whiteout is an international media buying agency born in ukraine, specializing in the gambling and betting verticals. backed by venture capital, they’ve already established digital activity across 30+ countries — from latam to southeast asia. at their core, they’re a team of passionate igaming experts. energetic, ambitious, and laser-focused on results — we move fast, think big, and never settle. if you’re hungry to grow and thrive in a high-performance environment, you’ll feel right at home with them.
 

🔴 the role
we are looking for a junior mobile app publisher.
In this role, you will become a “right hand” to our head of development, taking over the routine technical tasks of app publishing. your goal is to eliminate the current production bottleneck and ensure a smooth flow of apps for our media buying team. this is a perfect entry point for a proactive individual with a technical mindset who is ready to learn and grow within a fast-paced environment.
 

🔴 what you will be working on

• publish a high volume of mobile applications in the Google Play Console;
• manage routine technical tasks and maintain developer accounts to support the infrastructure;
• work closely with the Head of Development to ensure apps are delivered without technical errors;
• monitor app statuses and provide technical support for the production cycle;
• maintain a steady publishing pace to support the company’s scaling goals.
   

🔴 your background

• basic technical understanding of the android ecosystem (how apps are structured and published);
• proactivity is key — you are self-driven, eager to learn, and ready to take responsibility;
• high level of discipline and the ability to maintain focus during repetitive technical tasks;
• completed technical courses (android, qa) or a technical degree is a major plus;
• readiness to work a stable full-time schedule alongside the team;
• account management: creation/management of developer accounts and understanding ban risks;
• basic automation: scripts (python / bash) or no-code tools;
• working with firebase (xrashlytics, basic analytics);
• english (ability to read policies and documentation).
   

🔴 what we offer:

• flexibility and freedom: choose fully remote, hybrid, or office-based work yourself;
• strong team: work alongside some of the industry’s top talent;
• career development: take courses, attend top-notch conferences;
• health support: paid vacation and sick leaves, and access to a corporate psychologist;
• corporate culture: enjoy off site parties, team-buildings, sport events, and corporate gifts.
   

let`s talk.

We're a US-based product company building a distributed automation platform that orchestrates a physical Android device fleet from a Kotlin/Spring Boot core. The system is in active production use, partially built, and needs a senior backend engineer for completion work — finishing the remaining V1 scope, hardening the reliability layer, and demonstrating sustained unattended operation under production load.
 

Technical surface: Kotlin/Spring Boot 3.2 on Java 17 for the orchestration layer, Apache Kafka for event streaming, Redisson for distributed locking across the cluster, PostgreSQL for transactional state, Neo4j for relationship graphs, Redis for caching. Worker layer is Node.js running Playwright for browser automation and Appium for physical Android device control. Frontend is React/TypeScript/Vite/Tailwind. Production runs on Docker with Jenkins CI/CD and Prometheus/Grafana for observability.
 

What we need: a senior engineer with real Java or Kotlin distributed systems experience, production debugging stories around Kafka consumer rebalancing or distributed lock contention, database engineering at scale, and the judgment that comes from inheriting complex codebases and shipping clean releases out of them. Fluent use of AI-augmented engineering tools (Claude Code, etc) is expected as part of daily workflow.
 

You'd have technical execution authority over how the work gets done, code quality standards, and engineering process. Founder retains authority over what gets built, scope priorities, and tradeoff decisions. This is completion engineering with senior autonomy on execution, not greenfield architecture or product ownership.
 

Engagement is structured as 2-week sprints with milestone-based payment tied to verifiable deliverables agreed at the start of each sprint. First sprint is a behavioral audit of the existing codebase. Subsequent sprints address the prioritized completion scope. Either side can adjust scope or end the engagement at sprint boundaries.

Available immediately. Remote-friendly. Compensation discussed during initial conversation based on your experience and engagement preferences. Direct contractor relationship, no agency markup.

If this fits, send a brief note covering: (1) your strongest distributed systems debugging story, (2) your experience inheriting and shipping production work from partially-built codebases, and (3) when you can start.

Applefy - Premium Mobile and Web Development company, is looking for a talented Python Developer to join our dynamic team on an ongoing project.

This is a fantastic opportunity for a developer passionate about building high-quality software solutions and wanting to grow their skills in a flexible and supportive environment.

What We Offer:
• Flexible work schedule: Manage your own time and work at your own pace.
• Fully remote: Work from anywhere in the world.
• Comprehensive leave policy: Enjoy all official holidays, 20 days of paid vacation, and 10 sick days without needing a doctor's note.

Key Requirements:
• Strong communication skills
• Proficiency in spoken English
• 3+ years of experience with Python
• Experience with crypto / Payment providers
• At least 1 year of experience in product development
• Solid understanding of UI/UX principles
• Keen attention to detail
• A desire to learn and grow professionally

Preferred Qualifications:
• MacBook (ARM processor) & iPhone owner
• Residency in Ukraine 🇺🇦

If you're ready to take the next step in your career with Applefy, we'd love to hear from you!

We are looking for flutter developer for our music software

( work in Lviv or Kyiv,

remote work possibility ):

www.MusConv.com

About the project:

MusConv is b2c music software which helps people synchronize their music between music services: Spotify, Apple Music, YouTube Music, Amazon Music, Tidal and others.

We offer:

Challenging interesting project

Professional growth and development program

Flexible schedule

Team of highly talented individuals

Access to developer courses like https://www.pluralsight.com

Mentor: code reviews, studying

We are looking for flutter developer to implement new features

Important: after confirming your application on this platform, you’ll receive an email with the next step: completing your application on our internal site, LaunchPod. So keep an eye on your inbox and don’t miss this step — without it, the process can’t move forward.

Why join us
If you’re looking for a place to grow, make an impact, and work with people who care, we’d love to meet you! :)

About the role
We are looking for a Senior Android Engineer to design, build, and maintain features that power Bumble’s consumer-facing dating experience. You will work in Kotlin with Jetpack Compose and XML-based views, owning features end-to-end from technical design through release while contributing to Android architecture standards in a large, fast-moving codebase. The role includes mentoring junior engineers and integrating AI-assisted development tools into the engineering workflow.

What you will do
● Design, build, and maintain high-quality Android features that power consumer-facing experiences;
● Partner closely with Product Managers and Designers to shape product vision, influence the roadmap, and translate ideas into polished Android implementations;
● Own Android features end-to-end, from technical design and implementation through testing, release, and iteration;
● Contribute to and evolve the Android architecture and engineering standards, balancing long-term maintainability with rapid product development;
● Leverage AI-assisted development tools and workflows to improve productivity, code quality, and developer experience;
● Help mature the team’s approach to AI usage by sharing best practices, tools, and learnings with other engineers;
● Support and mentor other Android engineers through code reviews, pairing, and technical guidance.

Must haves
● 5+ years of professional experience building and shipping production Android applications;
● Strong proficiency in Kotlin and experience with modern Android development practices;
● Experience building UIs using Jetpack Compose and/or XML-based views;
● Proven experience designing and maintaining Android application architectures such as MVVM, MVI, or Clean Architecture in medium-to-large codebases;
● Solid understanding of Android platform fundamentals, including activity and fragment lifecycle, threading, performance, and memory management;
● Experience integrating and consuming networked APIs from Android clients, including error handling and offline considerations;
● Experience owning Android features end-to-end, from technical design and implementation through testing and release;
● Excellent communication skills and a collaborative, inclusive mindset;
● Upper-intermediate English level.

Perks and benefits
● Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps
● Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities
● A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands
● Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office — whatever makes you the happiest and most productive.

Meet Our Recruitment Process
Asynchronous stage — An automated, self-paced track that helps us move faster and give you quicker feedback:
● Short online form to confirm basic requirements
● 30–60 minute skills assessment
● 5-minute introduction video
Synchronous stage — Live interviews
● Technical interview with our engineering team (scheduled at your convenience)
● Final interview with your future teammates
If it’s a match—you’ll get an offer!

We are looking for a highly skilled and engaged Flutter Developer to play a pivotal role in the development of our flagship mobile and web video streaming application. You will be responsible for building new features, refining existing ones, and ensuring our application is robust, scalable, and a delight to use.

Project is a sports-media platform where content is curated by athletes, verified by the source. No noise. No trolls. Just real-time updates, exclusive content, and insider access—all in one place.

You will be deeply involved in architectural decisions, from managing real-time socket connections and data streams to implementing complex, animated user interactions. The ideal candidate is a problem-solver who thinks deeply about state management and isn't afraid to tackle unique challenges like low-level networking video streaming strategies.

Key Responsibilities:

* Develop and maintain high-quality, responsive, and performant features for our web, iOS and Android video streamign applications using Flutter.
* Architect and implement scalable and maintainable state management solutions using Riverpod and code generation patterns.
* Build complex, fluid, and profiessional user interfaces with custom animations, gestures, and `Hero` transitions.
* Integrate with our extensive Firebase backend, including Firestore, Firebase Auth, Cloud Functions, and Storage.
* Implement and manage features for video and audio streaming, including playback controls, background audio, and camera integration.
* Collaborate on building and maintaining a clean, testable codebase with a strong emphasis on dependency injection and separation of concerns.
* Work with GetStream to integrate live video streaming into the application.
* Troubleshoot and debug complex issues across the full technology stack, from the UI down to the networking layer.

Required Skills & Experience:

* 5+ years of professional experience building and shipping web and mobile applications with Flutter.
* Deep expertise in Riverpod for state management. You should be able to discuss the nuances of different Notifiers, using `ref.listen` for side-effects, and structuring a multi-provider architecture.
* Strong experience with the Firebase ecosystem (Auth, Firestore, Storage, Cloud Functions).
* Proven ability to implement complex and custom UI/UX, including animations, `DraggableScrollableSheet`, `BackdropFilter`, and custom `GestureDetector` logic.
* Experience with declarative navigation using `go_router`.
* Proficiency with modern Dart, including `async/await`, Streams, and code generation tools like `freezed` and `build_runner`.
* A strong understanding of clean architecture principles and a passion for writing testable code.

Nice to Have:

* Familiarity with video/audio packages like `video_player` and `just_audio`.
* Experience implementing in-app purchases (IAP), specifically with `purchases_flutter` (RevenueCat).
* Interest or experience in integrating with Generative AI platforms (e.g., Google Genkit, Firebase Vertex AI).
* A disciplined approach to testing, with experience using `flutter_test`, `mockito`, or `mocktail`.

Interview Process:
 

• HR Interview (45 minutes)
• Technical Interview with a Technical Specialist (1 hour)
• Final Technical Interview with the Project Team Lead
  
  We offer:

• Competitive salary, long-term employment;

• Honest attitude, individual approach, stability, and keeping promises;

• Flexible schedule, possibility to partially work from home or remotely;

• Personal Development Plan;

• English lessons;

• Support in the war-situation;

• Yoga classes 2 times per week;

• Personal Time Off (Kid’s activities, Car maintenance, Doctor appointment, etc.);

• Supportive and friendly team members.

 

Important: after confirming your application on this platform, you’ll receive an email with the next step: completing your application on our internal site, LaunchPod. So keep an eye on your inbox and don’t miss this step — without it, the process can’t move forward.

Why join us
If you’re looking for a place to grow, make an impact, and work with people who care, we’d love to meet you! :)

About the role
We are looking for a Senior Backend Engineer to design and maintain scalable, secure backend systems that power a high-scale consumer dating platform. You will work with Kotlin and AWS-native services, owning projects end-to-end from architecture to production delivery. The role includes mentoring junior engineers and contributing to technical standards, with AI-assisted development tools integrated into the engineering workflow.

What you will do
● Design, implement, and maintain backend systems that are scalable, secure, and reliable, using AWS-native services;
● Drive individual projects from inception to delivery, owning the full software development lifecycle;
● Collaborate with Product Managers, Designers, and other Engineers to ship new features and improvements;
● Apply AI-based development tools and workflows to enhance productivity and code quality;
● Participate in architecture discussions and propose technical solutions that support long-term scalability;
● Support junior engineers through pairing, mentoring, and code reviews;
● Contribute to engineering standards and best practices to maintain a high-quality codebase.

Must haves
● 5+ years of professional experience in backend Kotlin software engineering;
● 2+ years working with cloud environments, preferably AWS, including deployment and monitoring;
● Proven ability to run projects autonomously and deliver production-ready systems;
● Exposure to secure API design, distributed systems, and microservices architecture;
● Experience with CI/CD pipelines and containerization tools like Docker or Kubernetes;
● Familiarity with infrastructure-as-code tools such as Terraform and observability platforms such as Datadog, Prometheus;
● Excellent communication skills and a collaborative, inclusive mindset;
● Upper-intermediate English level.

Perks and benefits
● Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps
● Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities
● A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands
● Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office — whatever makes you the happiest and most productive.

Meet Our Recruitment Process
Asynchronous stage — An automated, self-paced track that helps us move faster and give you quicker feedback:
● Short online form to confirm basic requirements
● 30–60 minute skills assessment
● 5-minute introduction video
Synchronous stage — Live interviews
● Technical interview with our engineering team (scheduled at your convenience)
● Final interview with your future teammates
If it’s a match—you’ll get an offer!

We’re looking for a Senior Front-End Engineer to join our team. 

Work Location: Poland (Krakow), Slovakia (Kosice) or Czechia (Prague). 

Hybrid: 2+ days per week in the office, the rest remote.

The Mission

We are building a complex, real-time ecosystem for micromobility and logistics systems sim—where split-second logistics meet seamless user experiences. We need a Front-End powerhouse to lead the development of our Customer Mobile Web App and our high-utility Internal Admin Panels.

You’ll be the bridge between the sleek, high-performance interface our users see and the robust, scalable Python services that power the logic.

• Mobile-First Frontend: Architect and scale our React-based mobile web application, ensuring 60fps performance and offline-first capabilities.
• Operational Control Centers: Build dense, data-heavy Admin Panels that allow our operations team to monitor real-time logistics, manage users, and handle complex dispatching.
• Scalable Backend: Design and maintain performant APIs using Python (FastAPI/Django) to handle high-concurrency event streams.
• End-to-End Ownership: From database schema design to CSS transitions, you’ll own the entire feature lifecycle.

Who You Are

• The Architect: You don't just "write code"; you design systems. You understand how a change in a Python microservice ripples out to the React frontend.
• UX Enthusiast: You understand that an Admin Panel requires different UX "muscle" (efficiency and density) than a mobile app (simplicity and speed).
• Problem Solver: You’ve dealt with the "hard stuff"—real-time GPS tracking, race conditions in booking logic, or complex state management.
• Pragmatist: You balance the need for clean, tested code with the reality of shipping features in a fast-paced environment.

Will be a plus Led transformation of standalone product into scalable SaaS platform.

Why Join Us?

Work on a product with immediate, real-world impact.

A "no-red-tape" environment where your architectural decisions stick.

Layer Technology

Frontend - React Native Expo, Styled Components, Mobx/Redux, WebSockets. Experience with Firebase, Expo SDK, Expo Modules.

Backend - Python (FastAPI / Django / Flask)

Database - PostgreSQL, Redis (for real-time caching)

Infrastructure - AWS/GCP, Docker, Kubernetes

Real-time - WebSockets / Socket.io (for "Uber-style" live tracking)

Requirements & Skills - Senior Front-End Engineer

What We’re Looking For:

• 4+ years of commercial experience with React Native (Expo)
• Advanced proficiency in React Native Expo.
• Expert-level TypeScript experience with advanced types and strict configurations;
• Deep knowledge of React 18+ fundamentals: hooks, context, memoization, rendering performance.
• Strong knowledge of state management tools (Redux, MobX, Zustand, etc.);
• Experience building map-based UI: react-native-maps / MapView, markers, polylines/routes, camera control, clustering.
• Strong UI implementation skills: different screen sizes, accessibility basics.
• Hands-on experience with GPS / background location tracking
• Expertise in navigation: React Navigation (deep linking, nested navigators, modal flows).
• API integration: REST/GraphQL consumption, request caching, pagination, retries, error handling.
• Handling auth flows (JWT/OAuth), token refresh, secure storage patterns (Keychain/Keystore concepts).
   

Core responsibilities: 

• Full end-to-end ownership of the mobile app (iOS & Android)
• App maintenance, releases, production stability & incident handling
• GPS / geolocation + live tracking
• REST API + real-time event integration
• Performance, reliability, and architecture improvements
• Ability to understand business requirements and translate them into technical requirements.

Required Skills

• React Native Expo, Styled Components, Mobx/Redux, WebSockets. 
• Experience with Firebase.
• Expo SDK 52+, Expo Modules

Language Skills

English: Upper intermediate (B2)

We offer:

• Challenging and rewarding tasks with autonomy in a distributed international team
• Motivated colleagues who foster a collaborative environment
• Competitive salary based on your experience and expertise
• 20 vacation days + state holidays + your birthday off (for full-time employees)
• Sick leave coverage (5 days for full-time employees)
• Opportunities for regular business trips abroad