Jobs Flutter

Senior Mobile / Flutter Developer

We are looking for a Senior Flutter Developer to build a mobile application for sales teams, integrated with CRM/ERP systems.

Responsibilities:

• Develop and maintain the mobile app using Flutter.
• Implement offline-first logic, local data storage, and synchronization.
• Integrate the app with CRM/ERP systems and backend APIs.
• Work with SQL storage and understand when NoSQL is appropriate.
• Implement logging, error handling, and secure data handling.
• Participate in architecture and technical decisions.

Requirements:

• 8+ years of mobile development experience.
• Strong experience with Flutter and Dart.
• Good understanding of offline-first architecture and data sync.
• Experience with SQL databases and local storage.
• Understanding of mobile app security principles.
• Experience with API integrations.
• Ability to design scalable and maintainable mobile architecture.
• Understanding of multi-tenant application logic.

Nice to have:

• Experience with CRM/ERP integrations.
• Experience with enterprise, sales, logistics, or field-service apps.
• Experience with sync conflicts and background synchronization.

Work conditions:

Remote, part-time. Candidates from Europe or Ukraine preferred.

Solid Software continues to grow and we`re opening our doors to talents from Latin America! 
 

If you are a Middle Flutter Engineer, looking for new challenges, complex projects, and a great team, we have a place for you to grow and thrive!

We're excited to welcome a skilled engineer who wants to dive deep into complex architecture, push the boundaries of the stack, and grow as a technical leader in our team.
 

Apply now and enjoy bringing innovation to life!

What will you do?

• Contribute to the full development cycle of Flutter & Dart apps;
• Work across a variety of projects, from scratch to ongoing support and feature development;
• Write clean, maintainable code following best practices and coding standards;
• Solve complex technical challenges and implement effective solutions;

• Continuously grow your skills and deepen your Flutter & Dart expertise alongside engineers who've been doing this since 2018.
 

Requirements:

• Knowledge of Flutter & Dart Core;

• 2+ years of commercial experience with Flutter & Dart;

• Solid background in mobile application development (Android, iOS);

• Fluent English for confident and comfortable daily communication with an international team;

• Good understanding of OOP/ SOLID/ DRY principles, CS fundamentals and Flutter & Dart core;

• Strong focus on code quality;

• A habit of asking the right questions and getting to the bottom of things;

• The ability to think independently and drive things forward without waiting to be nudged.

Would be a plus:
 

• Experience using AI;

• Understanding of server-side development in Java and web client interfaces in JavaScript;

• Understanding of security and compliance principles.

Why Solid Software?
 

• A wonderful team of enthusiasts and like-minded people;

• One of the biggest Flutter expertise in the world;

• Atmosphere of comfortable work & life balance;

• Flexible schedule and work-from-home opportunity;

• Opportunity to work on projects with different Flutter directions (web, mobile, tablet, watch, desktop);

• MacBook Pro and great tech;

• Decent compensation;

• Lack of bureaucracy;

• Compensation for professional events, English lessons, sports activities;

• Corporate online parties and fun team-buildings;

• Anniversary and birthday presents;

• Accounting services.

Professional growth:

• Onboarding and mentorship program with a dedicated onboarding Flutter guide built by our team;

• Internal Career Path program from Developer to Architect that consists of knowledge areas for IT specialists, books, training sessions, and work activities;

• Corporate library with the best programming books (+ an ability to order a particular book if we don't have it);

• Professional and constant feedback.

We truly value the unique talents and skills that each individual brings to our company. 

As we continue on our journey of growth, we eagerly anticipate the opportunity to welcome you into our team. 

Talk to you soon!

Job Summary:

We are eclipt.ai - more than just a mobile & web development agency. Our main focus is mobile and web applications development and support for various business sectors for over six years. Our portfolio includes a wide variety of software solutions, from small crypto signals apps to projects with IoT and Generative AI integration.

We're scaling our Flutter team and looking for a developer who treats AI agents as a first-class part of their workflow. You will own feature delivery end-to-end, orchestrate your own team of AI agents, review their output, and partner with the COO and Tech Lead on scoping and planning. If you haven't worked with a multi-agent setup yet but want to learn - we'll show you how.

Key responsibilities:

- Deliver Flutter features end-to-end on production apps, from scoping to App Store / Google Play release
- Orchestrate your own team of AI agents (Claude Code + Paperclip) - prompt, review, iterate
- Review code produced by AI agents and teammates before it reaches the main branch
- Partner with the COO and Tech Lead on sprint planning, estimates and breakdowns
- Maintain clean Flutter + Firebase architecture across long-running projects
- Communicate progress and blockers proactively in async and sync formats

Role profile:

- 3+ years of production Flutter experience with apps shipped to App Store and/or Google Play
- Strong Firebase experience (Auth, Firestore, Cloud Functions, FCM)
- Hands-on experience creating Firebase Cloud Functions
- Hands-on experience with Claude Code, or willingness to get fluent in it within the first 2 weeks (we onboard you on multi-agent setups and Paperclip)
- Able to critically review AI-generated code - spot hallucinations, over-engineering, bad patterns
- Project management mindset: can estimate, scope and break down features without being walked through

Soft Skills:

- High agency: takes ownership without micromanagement
- Curious about AI tooling and actively uses it to move faster
- Strong written and spoken communication
- Feedback-oriented, unafraid to challenge decisions when needed

What we offer:

- Competitive level of salary
- Remote-first way of working
- Flexible working schedule
- Mentorship program for all employees
- Regular Performance reviews
- Tailor made development plans for every employee
- Direct hands-on exposure to cutting-edge AI workflows (Claude Code, Paperclip, multi-agent setups)

Senior AI-Native Flutter Developer

Salary: $5,000-$7,000/month net

We're rebuilding eclipt.ai from a standard Flutter agency into a fully AI-orchestrated delivery team.

One senior developer running a team of AI agents in parallel, shipping what used to take a team of four.

We're looking for the people who already know how to do this.

In the past 3 years, we have:
- Helped a German startup land a $1B+ marketcap partnership
- Built an app that brought our client $1M in revenue in the first 2 weeks after launch
- Worked with two Grammy-winning artists
- Shipped a 2.7M+ downloads app

Who we need:

- Someone who's already running multi-agent setups daily, and can show us output that proves it. Not 'curious about AI' - actively shipping with it.

- Someone who can scope a feature, break it into agent-executable tasks, review the output critically, and ship it to production without being walked through anything.

- Someone who's done 6+ years of production Flutter, has apps on App Store and Google Play, and can spot AI hallucinations, over-engineering, and bad patterns in generated code.

- Someone with high agency, product thinking, and the confidence to push back on us when we're wrong. You'll work directly with the Co-Founder and Tech Lead daily. Your inputs on tooling, workflow, and architecture get implemented the same week, not filtered through layers.

We're betting on you. We expect you to bet on us back.

This is NOT for you if:
- You want a mentorship program, structured career ladder, or onboarding plan. We don't have one. We're looking for a more experienced person than we are.
- You want to be told what to build and how to build it. We don't have time to architect for you.
- You think AI is not good enough to build production-ready Flutter apps.

What we offer:
- $5,000-$7,000/month net, based on what you bring on day one
- $5,000-$7,000/year in bonuses depending on hitting our KPIs
- Direct daily contact with the Co-Founder and Tech Lead - no middle management
- Access to all company finances: you see how your workflows impact company profits. And you get to decide where the resources are allocated, too
- Full remote, flexible schedule
- Real influence on company direction - what you say gets shipped
- Hands-on exposure to cutting-edge AI workflows (Claude Code, Paperclip, multi-agent orchestration)

What we don't offer:
- Mentorship or training programs
- A career roadmap (we're figuring out the next 12 months ourselves)
- Slow ramp-up - you start contributing in week 1

Requirements:
- 6+ years production Flutter, apps shipped to App Store and Google Play
- Strong Firebase (advanced cloud functions, cost optimization e.g. how to create requests that cost less on monthly basis)
- Daily hands-on with Claude Code or similar agentic tools
- Can scope, estimate, and break down features independently

How to apply:

Don't send a CV. Send a pitch:
- What you've shipped (links to apps, repos, or production work)
- How you currently use AI in your workflow - specific tools, specific results
- One thing you'd change about how most Flutter agencies operate

We respond within 48 hours.

Working hours: At least 4 hours overlap between CET & EST

A leading healthcare technology company committed to improving patient outcomes through innovative digital solutions is currently seeking a skilled Flutter Mobile Developer to join our dynamic team and contribute to the evolution of our apps. 

Responsibilities

● Maintain and enhance the functionality of our existing suite of apps. 

● Develop cross-platform iOS and Android apps using Flutter 

● Collaborate with cross-functional teams to understand business requirements and translate them into scalable and maintainable code. 

● Work with senior members of our team to maintain high standards for code quality and maintainability, contributing to the overall improvement of our apps. 

● Knowledge of Flutter development framework. 

● Knowledge of iOS and/or Android development framework. 

Requirements 

● Excellent communication skills in English, with the ability to articulate complex technical concepts clearly. 

● 5+ years of professional development experience using Flutter and Dart 

● At least one app published on the iOS App Store or Google Play 

● Strong understanding of the latest versions of Swift and/or Kotlin. 

● Proven track record of consistently delivering high-quality code, accelerating product iterations, and ensuring scalability. 

● Experience with native iOS and Android development.

● Experience working in an agile development environment. 

● Degree in Computer Science or Engineering.

Preferred Experience 

● Knowledge of each of the Dart, Swift, and Kotlin programming languages is a major plus 

● Knowledge of each of the native iOS, Android development platforms and Flutter is a major plus.

Interviewing process

• A resume review stage
• Two (2) interview stages
• The CodeSignal coding test will be live (!) during the first interview.

Position: Junior Flutter Developer

Responsibilities:

Develop mobile applications using Flutter according to specified requirements and design.

Participate in meetings and discussions with the team to understand project needs.

Test, debug, and optimize code to ensure high performance.

Apply SOLID principles in software design and development.

Actively learn new technologies and development methods.

Requirements:

Experience or projects using Flutter.

Proficiency in Dart.

Understanding of UI development principles and experience with Flutter widgets.

Basic skills in version control systems, such as Git.

Familiarity with SOLID principles in software design.

Experience working with APIs.

Willingness to learn and a commitment to professional growth in mobile development.

Strong communication skills and ability to work in a team.

Basic knowledge of English for understanding technical documentation.

Nice to have:

Knowledge of Android/iOS platforms and their peculiarities.

Understanding of architectural principles in applications.

Conditions:

Flexible working hours.

Remote work possibilities.

Also we have an internship for 1-2 months (if you need it)

If you are interested in our vacancy, please explain in your response why you want to work specifically with us.

This is a great opportunity for entry-level specialists. We look forward to receiving your responses and resumes.

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

AVIRISE — компанія, що спеціалізується на розробці та просуванні мобільних застосунків.
Ми шукаємо Flutter Developer’а — не просто виконавця задач, а людину, яка бачить продукт цілісно. Ти долучишся до розвитку та покращення кількох мобільних продуктів, працюватимеш над новим функціоналом, якістю й стабільністю застосунків, а також матимеш простір для власних технічних рішень.

🤝 Що ми очікуємо:

— Досвід роботи на позиції Flutter розробника від 2 років;
— Впевнене знання Clean Architecture та Feature-Driven Design;
— Досвід зі state management: Cubit / BLoC; розуміння реактивних підходів (RxDart або аналог);
— Робота з DI-контейнерами (get_it або подібне);
— Досвід з мережевим шаром та локальним сховищем: dio, drift, hive, shared_preferences або аналоги;
— Робота з Firebase: Firestore, Authentication, Crashlytics, Push Notifications, Analytics;
— Розуміння platform channels / pigeon для нативної інтеграції Flutter ↔ iOS/Android;
— Базове знання Kotlin або Swift — достатньо для читання коду та дрібних правок;
— Навички підключення та роботи з аналітичними інструментами (Amplitude, Firebase Analytics або аналог);
— Досвід роботи з підписками та пейволами (Adapty, RevenueCat або інший сервіс);
— Навички написання unit та integration тестів (Flutter Test, Mockito або аналоги);
— Рівень англійської мови від Pre-Intermediate;
— Наявність застосунків в App Store та/або Google Play.

💡 Твоїми основними завданнями будуть:

— Підтримка та розвиток існуючих мобільних продуктів — фічі, фікси, рефакторинг;
— Розробка нових функціональностей з нуля — від проєктування архітектури до релізу в стори;
— Робота з підписками, пейволами та аналітикою — підключення, налаштування, підтримка;
— Самостійний аналіз задач: вміння пропонувати варіанти рішень та приходити з пропозиціями щодо їх реалізації;
— Підтримка пакету продуктів в твоїй зоні відповідальності згідно до пріоритетів.

💪 Буде плюсом:

— Досвід з camera API;
— Робота з кастомними анімаціями: CustomPainter;
— Code generation: freezed, json_serializable, build_runner, intl_utils;
— Попередній досвід у нативній мобільній розробці (iOS / Android) до переходу на Flutter.

💫 Ми пропонуємо:

— Гнучкий графік: Пн-Пт (8:00-10:00 / 17:00-19:00);
— Можливість працювати віддалено або з комфортного офісу у м. Дніпро, який має укриття, забезпечений Starlink та генератором для безперебійної роботи;
— 20 days off на рік та оплачувані sick leave;
— Додатковий day off у твій день народження;
— Часткова компенсація бенефітів: іноземні мови, заняття спортом, сеанси з психологом або відвідування коворкінгу;
— Повне або часткове покриття професійного навчання/курсів;
— Мінімум бюрократії та формалізму;
— Відкритість, прозорість рішень і чесна комунікація.

Ми відкриваємо для наших партнерів нову ключову позицію — Founding Engineer (Flutter & Backend) для продукту.

Компанія — AI-native venture builder у FamilyTech. Ми будуємо продукти, які змінять індустрії — починаючи з найважливішої: сім’ї.

AI вже переписує правила того, як створюються продукти, як розуміється користувач і як будується бізнес. Ми входимо в ці зміни першими — не щоб адаптуватись, а щоб змінити саму логіку того, як може працювати venture builder в епоху даних.

В основі нашої моделі — Data Engineering та Data Science як core бізнес-архітектура. Це не підтримуюча функція, а операційний фундамент: від behavioral modeling і feature engineering до production ML pipelines, які живлять продуктові рішення в реальному часі.

Кожен новий продукт підсилює спільний data graph і робить наступний точнішим, швидшим і захищенішим. Ми свідомо будуємо систему з compounding value, яку неможливо швидко наздогнати одиночним стартапом.

Ми шукаємо людей, яких не потрібно переконувати в силі даних — вони вже нею одержимі. Тих, хто бачить систему в кожній задачі і можливість для AI зробити неможливе можливим.

Тих, хто не питає “чи можна це автоматизувати”, а думає “що стане можливим, якщо це зробити”.

Ми шукаємо людей, які мислять інакше не тому, що стараються, а тому що інакше не вміють. Тих, хто розуміє: технології не просто покращують індустрії — вони їх замінюють.

І саме зараз, поки ринок ще не до кінця усвідомив масштаб змін, формується те, як ці індустрії виглядатимуть наступні десятиліття.

Ми вже всередині цього процесу. І будуємо його разом.

We build what the industry becomes.

Про продукт

Зараз ми запускаємо mobile-first продукт для Tier-1 ринків (North America, EU).
 

Мета — створити безпечне digital-середовище та дати батькам інструмент, який допомагає формувати якість контенту, що споживають діти.

Про роль

Шукаємо Founding Engineer (Flutter & Backend), який очолить технічну розробку продукту з 0 до 1 — від архітектури та MVP до production-ready mobile ecosystem.

Це роль для людини, яка не просто виконує задачі, а веде продукт технічно: приймає рішення, будує архітектуру, інтегрує сервіси, відповідає за стабільність, релізи та швидкість delivery.

Робота буде в тісній зв’язці з AI Engineer, Product Manager та User Acquisition Manager.
 

Ключовий фокус — перетин mobile, backend, AI, product logic та user experience.

Ми шукаємо інженера “AI-era” — людину, яка працює швидко, мислить системно і активно використовує AI-інструменти (Codex, Claude Code) для прискорення розробки.

Що потрібно буде робити

• End-to-End розробка застосунку Watchover на Flutter (iOS/Android), котрий допоможе створити безпечне середовище для перегляду контенту.
• Побудова Backend-for-Frontend (BFF): Розгортання та підтримка бекенд-інфраструктури (наприклад, Supabase або Firebase). Написання Cloud/Edge Functions для агрегації даних.
• Оркестрація взаємодії з AI-сервісами: Побудова асинхронних флоу між застосунком, BFF та автономними AI-мікросервісами. Налаштування real-time синхронізації (WebSockets / Firestore), щоб батьки могли миттєво керувати доступами дитини.
• Налаштовувати subscriptions та mobile payments через RevenueCat / Adapty / In-App Purchase
• Інтегрувати web payments та billing flows через Stripe
• Будувати продуктову аналітику через Firebase Analytics / Amplitude / Mixpanel
• Працювати з attribution systems: AppsFlyer / Adjust
• Налаштовувати push notifications та deep linking flows

Що ми очікуємо від вас

• Експертиза у Flutter та підтверджений досвід випуску кросплатформних застосунків - комерційний досвід 4 - 5+ років
• Досвід нативної розробки (iOS/Android): Ви не губитеся, коли готові Flutter-пакети не працюють.
• Full-Stack мислення: Практичний досвід роботи з BaaS (Supabase, Firebase, AWS Amplify) та розуміння принципів побудови кастомних backend API.
• Product-Minded підхід: Ви думаєте категоріями користувацького досвіду та бізнес-метрик. Ви пропонуєте оптимальні технічні рішення для швидкої перевірки гіпотез.
• AI-Augmented Development: Ви активно використовуєте сучасні AI-інструменти кодування у своїй щоденній роботі.

Буде великим плюсом

• Досвід роботи в стартапах
• Досвід роботи з consumer mobile products
• Досвід роботи з Platform Channels та нативним кодом
• Досвід у Family Tech / EdTech продуктах
• Досвід створення продуктів від 0 до 1

Процес інтерв’ю

HR інтерв’ю (MMH) → Інтерв’ю з Hiring Manager → Технічне інтерв’ю → Фінальне інтерв’ю з CEO & CPO

Якщо Вам близький формат роботи з продуктами 0→1, Ви любите складні технічні задачі на перетині mobile, backend та AI і хочете реально впливати на архітектуру продукту — надсилайте свій профіль, давайте поспілкуємось.

Хочеш долучитись до розробки унікальної мобільної платформи та інтегрувати технології в сектор доброчинності?

Charity Hero — продукт фонду Charity Lab Foundation, який об'єднує однодумців у міжнародну спільноту, щоб зробити доброчинність нормою життя.

Charity Lab Foundation сьогодні — це:

- $300К переданих технологій від партнерів фонду

- 200+ волонтерів за 2 роки

- 30 компаній- та 5 фондів-партнерів

- 9 амбасадорів

Волонтерство — це для тебе, якщо хочеш:

- допомагати тим, хто цього потребує — людям, тваринам та навіть організаціям

- долучитися до спільноти зі схожими життєвими цінностями

- розвивати свої особистісні, професійні та соціальні навички

- впливати на життя своєї спільноти та країни, у якій живеш

Волонтерство в нашій команді не передбачає оплату. Ми об'єднуємося у вільний від роботи час заради підтримки некомерційних організацій, України та українців.

Тобі знадобляться такі навички:

- Понад 2 роки досвіду розробки мобільних додатків із акцентом на Flutter і Dart.

- Глибокі знання архітектури Flutter, віджетів та APIs.

- Володіння технікою управління станом (Provider, Riverpod, Bloc).

- Досвід інтеграції API REST у програми Flutter.

- Експертиза в тестуванні модулів і віджетів у Flutter.

- Можливість застосування архітектурних шаблонів MVC, MVP і MVVM у проектах Flutter.

- Вміння використовувати Git для контролю версій, включаючи керування репозиторіями та гілками.

- Досвід роботи з такими інструментами, як Sentry і Firebase, для відтворення та обробки помилок.

- Досвід роботи з CI/CD pipelines для розробки мобільних додатків.

- Досвід зі стратегіями розгортання мобільних додатків як для Android, так і для iOS.

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Змінімо світ разом!

Привіт!

Ми — E-Com — команда закоханих у Foodtech та український продукт.

Якщо тобі цікаво розвиватися у Flutter, працювати з живим продуктом, бачити результат своєї роботи в руках реальних користувачів і поступово впливати на технічні рішення — нам точно є про що поговорити.

Як ми бачимо нашого dream кандидата чи кандидатку?

• 3+ роки комерційного досвіду з Flutter
• Хороше розуміння Dart
• Практичний досвід створення застосунків для iOS і Android
• Досвід роботи з BLoC-патерном та flutter_bloc
• Розуміння базових принципів архітектури мобільних застосунків
• Вміння писати чистий, зрозумілий і підтримуваний код
• Досвід роботи з REST API, JSON, асинхронністю та обробкою помилок
• Базове розуміння життєвого циклу мобільних застосунків
• Готовність розбиратися в існуючому коді та покращувати його
• Комунікабельність, відповідальність та бажання розвиватися

Буде плюсом:

• Досвід публікації застосунків в App Store або Google Play
• Досвід написання unit, widget або integration тестів
• Досвід роботи з CI/CD
• Базове розуміння native-частини iOS або Android
• Досвід роботи з Firebase, push-сповіщеннями, аналітикою або crash reporting
• Досвід з feature flags, A/B-тестами або remote config
• Використання AI-інструментів для допомоги в розробці
• Інтерес до продуктової розробки та покращення користувацького досвіду

Що потрібно буде робити:

• Розробляти нові фічі для мобільних застосунків
• Підтримувати і покращувати існуючі проєкти
• Працювати з Flutter, Dart, BLoC та API-інтеграціями
• Брати участь в обговоренні технічних рішень разом із командою
• Писати чистий, ефективний код, який легко підтримувати
• Виправляти баги, покращувати стабільність і продуктивність застосунків
• Працювати з код-рев’ю та поступово зростати в архітектурних рішеннях

Що ми пропонуємо:

• Можливість розвиватися в сильній Flutter-команді
• Участь у створенні та покращенні продуктів, якими щодня користуються тисячі людей
• Добровільне медичне страхування
• Знижки в мережі бізнесів Fozzy Group
• Консьєрж-сервіс
• Віддалену роботу або затишний коворкінг у Silver Breeze, Київ

iOS and Android / Fully Remote
Full-time Contractor

About TWINii

TWINii is an expert-powered AI companion platform. We help the world's most trusted experts turn their voice, perspective, and body of work into an interactive AI twin their audience can talk to, any time. Personal, practical, scalable. A relationship, not a feed. A companion, not another app.

We are building the next layer of expert-audience connection. Not a feed to scroll, but a conversation you can apply. Our mission: give experts full consent and full ownership of their AI twin, backed by an architecture designed for depth, trust, and real intent.

Where We Are

Pre-launch. Funded. Engineering team of 6, based primarily in India. Mobile apps built in Flutter. The core product, voice and chat interaction with expert twins, is live internally. We are hiring the person who will own the mobile experience as we scale to public launch and beyond.

The Role

We need a Senior Flutter Developer who will own our mobile product end to end. This is not a ticket-taker role. You will be the technical authority on our iOS and Android apps, making architectural decisions, setting standards, and driving the mobile roadmap from planning through to production.

You will define how we build mobile at TWINii, not just for today's team, but for the team we are scaling into. That means auditing what exists, establishing the architecture and standards the next five engineers will work within, and making us faster as we grow, not slower.

Core Responsibilities

Technical Leadership. Own the mobile architecture. Make and document decisions on state management, navigation patterns, module structure, and platform integration strategy. You set the direction, you do not wait for it.

Project Ownership. Drive the mobile roadmap alongside product and design. Scope work, flag risks early, and deliver without needing to be managed.

Architecture Audit. Assess the current mobile codebase, identify structural weaknesses and technical debt, and build a clear roadmap to a more robust, scalable architecture.

Native Bridge Expertise. You do not just use packages. You modify them. You dive into Swift and Kotlin to fix what Flutter can not.

System-Level Awareness. iOS and Android app lifecycles, background execution limits, memory management, and threading.

Code Quality and Standards. Establish and enforce coding standards, review architecture and PRs, and ensure the codebase stays maintainable as the team grows.

Team Building. Define how the mobile team works: sprint cadences, PR review standards, branch strategy, release processes, and how we onboard new engineers.

Cross-Functional Guidance. Partner with product, AI, and backend teams to ensure mobile architecture is designed for features coming, not just features shipped.

UI Precision. Pixel-perfect interfaces that respect device-level realities.

Performance. Identify and eliminate memory leaks, jank, and bottlenecks.

Security. Handle platform-specific behaviours including permissions, notifications, and secure storage.

Required Technical Skills

• 5+ years of Flutter in production, 7+ years of professional mobile development overall
• Track record of leading a mobile project or team. You have been the person responsible for mobile output, not just a contributor
• Real-time communication integration: WebSockets, WebRTC, or LiveKit (or equivalent voice/video streaming SDKs)
• Audio and video playback/streaming on mobile
• Experience integrating AI/LLM-driven features on the client side
• Deep command of Dart: async programming, isolates, and streams
• Scale: proven experience handling apps with 100k+ concurrent sessions or viral spikes
• CI/CD: Fastlane, GitHub Actions, or Bitrise for automated mobile pipelines
• Experience hiring or growing a mobile engineering team (even 2 to 3 people)
• Communication: able to articulate technical trade-offs to non-technical stakeholders and push back constructively

What Senior Means at TWINii

This section matters to us. If it resonates, you are probably the right person.

You do not need a task list to know what to work on. You see what needs doing and you do it.

You have opinions on architecture and you can defend them with reasoning, not just preference.

You have shipped and maintained a product over time, not just built features and moved on.

You take ownership of outcomes, not just outputs. If something breaks in production, you are already investigating before anyone asks.

You make the people around you better. That is not optional, it is a core part of the role.

You have grown engineers around you. You have set standards that the team still follows after you stop enforcing them.

You have diagnosed a broken process or architecture and fixed it, not as a side project, but as part of your core job.

How to Apply

Email us with your CV and a link to a repository, portfolio, or high-quality apps you have shipped to the App Store or Play Store.

And answers to these three questions:

1. Tell us about a time you went beyond the Flutter framework to solve a platform-specific issue.
2. Tell us about an architectural decision that shaped a project: what you chose, why, and what you would do differently now.
3. Tell us about a time you inherited a codebase or team that was not in great shape. What did you change first, why, and what was the result?

We value engineers who understand the OS under the hood and who lead with ownership.

About the Client Our client is an expert-powered AI companion platform. They help leading experts in their fields turn their voice, perspective, and body of work into an interactive AI twin their audience can talk to, any time. Personal, practical, scalable. A relationship, not a feed. A companion, not another app.

The Role They need a Senior Flutter Developer who will own their mobile product end to end. This is not a ticket-taker role. You will be the technical authority on their iOS and Android apps, making architectural decisions, setting standards, and driving the mobile roadmap from planning through to production.

You will define how they build mobile, not just for today's team, but for the team they are scaling into. That means auditing what exists, establishing the architecture and standards the next five engineers will work within, and making them faster as they grow, not slower.
 

Core Responsibilities

Technical Leadership. Own the mobile architecture. Make and document decisions on state management, navigation patterns, module structure, and platform integration strategy. You set the direction, you do not wait for it.

Project Ownership. Drive the mobile roadmap alongside product and design. Scope work, flag risks early, and deliver without needing to be managed.

Architecture Audit. Assess the current mobile codebase, identify structural weaknesses and technical debt, and build a clear roadmap to a more robust, scalable architecture.

Native Bridge Expertise. You do not just use packages. You modify them. You dive into Swift and Kotlin to fix what Flutter cannot.

System-Level Awareness. iOS and Android app lifecycles, background execution limits, memory management, and threading.

Code Quality and Standards. Establish and enforce coding standards, review architecture and PRs, and ensure the codebase stays maintainable as the team grows.

Team Building. Define how the mobile team works: sprint cadences, PR review standards, branch strategy, release processes, and how new engineers are onboarded.

Cross-Functional Guidance. Partner with product, AI, and backend teams to ensure mobile architecture is designed for features coming, not just features shipped.

UI Precision. Pixel-perfect interfaces that respect device-level realities.

Performance. Identify and eliminate memory leaks, jank, and bottlenecks.

Security. Handle platform-specific behaviours including permissions, notifications, and secure storage.
 

Required Technical Skills

• 5+ years of Flutter in production
• Track record of leading a mobile project or team. You have been the person responsible for mobile output, not just a contributor
• Real-time communication integration: WebSockets, WebRTC, or LiveKit (or equivalent voice/video streaming SDKs)
• Audio and video playback/streaming on mobile
• Experience integrating AI/LLM-driven features on the client side
• Deep command of Dart: async programming, isolates, and streams
• Scale: proven experience handling apps with 100k+ concurrent sessions or viral spikes
• CI/CD: Fastlane, GitHub Actions, or Bitrise for automated mobile pipelines
• Experience hiring or growing a mobile engineering team (even 2 to 3 people)
• Communication: able to articulate technical trade-offs to non-technical stakeholders and push back constructively
   

Overview

We’re looking for a Flutter Developer to help build and maintain modern cross-platform mobile applications.

You’ll work closely with product, design, and backend teams to develop scalable and user-friendly mobile solutions using Flutter and Dart across Android and iOS platforms.

Responsibilities

• Develop and maintain mobile applications using Flutter and Dart;
• Build clean, scalable, and maintainable application architecture;
• Integrate REST APIs, WebSockets, and third-party services;
• Work with state management solutions such as BLoC, Provider, or Riverpod;
• Collaborate with UI/UX designers and backend developers;
• Optimize app performance and troubleshoot production issues;
• Support application publishing and release processes for App Store and Google Play;

• Participate in code reviews and technical discussions.

   

Requirements

• 3+ years of experience with Flutter development;
• Strong knowledge of Dart and mobile application development;
• Experience with Clean Architecture and SOLID principles;
• Experience with REST APIs and real-time communication (WebSocket / Socket.IO);
• Familiarity with Firebase services and local storage solutions;
• Experience with state management tools such as BLoC, Cubit, Provider, or Riverpod;
• Understanding of mobile app lifecycle and app publishing processes;
• Good problem-solving and communication skills;
• Ability to work independently and within a team.

Bonus (Not Must)

• Experience with Google Pay / Apple Pay integrations;
• Experience with TestFlight and App Store deployment;
• Knowledge of Unity or C#;
• Experience in ride-hailing, fintech, or crypto-related products;
• Familiarity with CI/CD for mobile applications;
• Experience with GoRouter, GetIt, Retrofit, or Figma integration.

Are you a Senior Mobile Flutter Developer who thrives on building impactful, high-quality products in a fast-paced, collaborative environment? Do you possess a strong sense of ownership and a passion for user-centric development? If you combine solid technical expertise with pragmatic decision-making and a “disagree and commit” mindset, Zutobi is the place for you.

About Zutobi:
Zutobi is a global EdTech company with Swedish roots, on a mission to revolutionize driver education and contribute to safer roads worldwide. Our flagship product, Zutobi Drivers Ed, proudly stands as the #1 driver education app in the US. We’ve expanded our impact with Zutobi Instructor, a comprehensive SaaS platform, and are continuously growing, serving over 250,000 monthly users.

What we are looking for: 

• Strong understanding of OOP, FP, and RX
• Understanding of SOLID principles and Design Patterns
• 5+ years shipping production Flutter apps (100k+ MAU)
• Understanding iOS and/or Android internals, architecture
• Excellent problem-solving, critical thinking, and communication skills
• Fluent English and Ukrainian, proactive communication
• Experience leading code reviews and mentoring developers
• Pragmatic over perfect - you avoid over-engineering and ship incremental wins fast
• Quality guardian - you prioritize testability and clean code over quick hacks
• Radically transparent - you openly share plans, blockers and progress, with no surprises

• Humble-yet-assertive mindset (“disagree & commit”) - you confidently challenge ideas with data and clear logic, and once a direction is chosen, take ownership and deliver end-to-end

   

A big plus if you have:

• Background in native iOS and/or Android development
• AB tests and feature flags experience
• Product-thinking
• Architectural experience
• Backend experience

• AI awareness

   

You will be responsible for:

• Own architecture & feature delivery end-to-end
• Drive reliability, simplicity and best practices
• Integrating mobile apps with web services
• Conducting code reviews

• Working closely with the other teams throughout the app development process

   

💙 What We Offer:

• Culture: Empowering, ’Bottom Up’ culture valuing initiative, collaboration, and continuous learning, aligned with values of Safety, Simplicity, Modernity, Encouragement, Helpfulness, and Accountability.
• Impact & Growth: Work with an industry-leading product (250,000+ monthly users, 10M+ downloads).
• Innovation: Freedom to innovate and utilize expertise in a company that encourages ideas and initiative.
• Work Flexibility: Remote work with flexible 40-hour/week schedule, accommodating team meetings and collaboration.
• Vacation: 20 business days (4 weeks) annual leave.
• Sick Leave: 20 business days (4 weeks) annual sick leave.
• Holidays: Ukrainian public holidays are default days off.

• Learning & Development: Reimbursement for development courses/training, fostering a continuous professional development culture where employees seek opportunities and managers coach teams.

   

If you’re curious, driven and ready to make a significant impact in a company that values initiative, collaboration and continuous learning, we encourage you to apply!