Jobs React.js

We are looking for a Middle/Senior React Native Developer to join our team and help us develop the best solutions for our clients.

Working as a Developer on this project requires a mindset where we plan, build, and deliver together as a team. As a group, we take a shared responsibility for delivery, including speed, efficiency, and quality, and we also take full responsibility for the operational condition of what we deliver.

As an individual, you’re expected to take ownership, drive initiatives forward, suggest and incorporate improvements across all areas.

Does this sound like you? Take your chance and grow with us.

Customer

Our client is one of the Europe’s biggest GameTech companies and the owner of one of the largest mobile gambling platforms, with millions of users. It is a big company that follows a startup approach. The technology stack is modern and up to date.

Project

As a React Native Engineer, you will work with a talented team of developers to create innovative, high-performing mobile applications for a range of well-known iGaming brands worldwide.

You will need to have a mobile-first approach to development, with an understanding of native app development.

Responsibilities:

• Develop and maintain high-quality React Native applications for both iOS and Android platforms
• Ensure a smooth, engaging user experience
• Focus on the apps for new and growing iGaming brands
• Improve and maintain the applications with a product focus
• Contribute to launching new brands and brand expansions into new markets

Requirements:

• Extensive experience with React and React Native
• Knowledge of GraphQL
• Experience with TypeScript
• Experience with GitHub and/or version control systems
• Upper-Intermediate level of English

Would be a plus:

• Experience writing unit tests

Робота над цим проєктом у ролі розробника вимагає мислення, орієнтованого на командну співпрацю — ми плануємо, створюємо та постачаємо рішення разом. Як команда, ми несемо спільну відповідальність за результат: швидкість, ефективність, якість, а також стабільну роботу того, що ми створили.

Водночас від кожного індивідуально очікується відповідальність за поставлені задачі, ініціативність, просування ідей уперед та внесення покращень у всіх напрямах.

Схоже на тебе? Лови шанс і зростай разом з нами!

Клієнт

Наш клієнт — одна з найбільших GameTech-компаній у Європі та власник однієї з наймасштабніших iGaming платформ з мільйонами користувачів. Це велика компанія, яка працює за принципами стартапу і використовує сучасний технологічний стек.

Проект

Як React Native-інженер, ти приєднаєшся до талановитої команди розробників і працюватимеш над інноваційними, високопродуктивними мобільними застосунками для низки відомих iGaming-брендів по всьому світу.
Тобі потрібно буде застосовувати підхід до розробки, орієнтований на мобільні пристрої, та розуміти особливості розробки нативних застосунків.

Обов’язки:

• Розробляти та підтримувати React Native-застосунки для платформ iOS та Android
• Забезпечувати плавний та зручний користувацький досвід
• Працювати над застосунками для нових і зростаючих iGaming-брендів
• Підтримувати та розвивати застосунки з фокусом на продукт
• Брати участь у запуску нових брендів та виході на нові ринки
• Глибокі знання React і React Native
• Знання GraphQL
• Досвід роботи з TypeScript
• Досвід роботи з GitHub та/або іншими системами контролю версій
• Знання англійської вище середньої

Вимоги:

• Глибокі знання React і React Native
• Знання GraphQL
• Досвід роботи з TypeScript
• Досвід роботи з GitHub та/або іншими системами контролю версій
• Знання англійської вище середньої

Перевагою буде:

• Досвід написання модульних тестів

Welcome to Drawer.AI!

- What we do: AI-driven workflows that let estimators pull quantities and costs from complex PDF drawing sets.  
- Stage: Seed-funded, revenue-generating, aiming for a Series A in 2026.  
- Why join now: Real customers are pushing our roadmap faster than our current front-end team can build.

We’re looking for a Senior React Developer (WebGL / Three.js) to build interactive, high-performance WebGL features for a product environment. This is a hands-on role with ownership over rendering architecture, performance, and user experience.

Key Responsibilities:

• Build interactive web experiences using WebGL & Three.js.
• Integrate WebGL functionality into React-based web applications.
• Optimize performance, rendering pipelines, and browser memory usage.
• Work closely with product and cross-functional engineering teams.
 

Requirements:

• 5+ years of experience in frontend development.
• Strong hands-on experience with React.
• 3+ years of hands-on experience with Three.js / WebGL.
• Solid knowledge of JavaScript and TypeScript.
• Experience with WebGL performance optimization.
• Product-oriented mindset and ability to work independently.
• Senior-level ownership and technical decision-making.

Nice to have:

• React Three Fiber.
• GLSL / shaders.
• Experience working with complex visual or interactive web interfaces (edited).

Join our stellar team at Drawer.AI, where excellence meets opportunity! Experience the exceptional; enjoy a competitive salary and career advancement and the outstanding work environment we take pride in. Elevate your professional journey with us – because we believe in creating success together. Build a better future with us!

About the Role
We are looking for a skilled React Native Engineer to help build and scale Scrambly's mobile app for iOS and Android. In this role, you will own the end-to-end implementation of key features for a high-traffic platform serving millions of users globally. You will be responsible for translating product requirements into robust software, ensuring that our mobile experience remains user-centric and competitive.

Your primary focus will be on writing performant TypeScript code within a modern React Native stack. You will play a crucial role in maintaining app stability, keeping the application fast, reliable, and easy to maintain. This position offers a strategic opportunity to impact business metrics directly by reducing technical debt and optimizing application performance.

Success in this role requires active cross-functional collaboration. You will work directly with Backend, QA, and Product teams to clarify requirements, solve complex engineering challenges, and deliver a seamless UX. Additionally, you will contribute to architectural discussions, helping to shape the technical direction of the product alongside senior engineers.

Key Responsibilities

• Design & Implementation:
  • Develop and maintain high-quality cross-platform applications using React Native and TypeScript
  • Build reusable UI components and highly performant lists (utilizing tools like FlashList or FlatList) that strictly adhere to design specifications
  • Integrate mobile apps with backend services via RESTful APIs and WebSockets to ensure real-time data synchronization
  • Debug platform-specific issues using Xcode and Android Studio, and write or modify native modules (Swift/Kotlin) when standard libraries are insufficient
• Engineering Standards & Quality:
  • Champion code quality by writing clean, testable TypeScript code and actively participating in peer code reviews to ensure standards for readability and maintainability are met
  • Contribute to the long-term health of the codebase by identifying and fixing technical debt and improving overall test coverage
  • Participate in architectural discussions, offering input on state management (e.g., Redux Toolkit, Zustand) and navigation patterns to improve scalability
• Performance, Reliability & Collaboration:
  • Monitor production stability using tools like Sentry or Crashlytics, proactively identifying and fixing crashes or errors
  • Optimize app performance by focusing on specific metrics such as frame rates, memory usage, app size, and battery consumption
  • Assist in maintaining CI/CD pipelines to ensure smooth and reliable releases to the App Store and Google Play
  • collaborate effectively with non-technical stakeholders to explain technical constraints and propose viable solutions

Requirements

• 3+ years of professional software engineering experience, with at least 2 years strictly focused on React Native development
• Strong proficiency in TypeScript and the React Native ecosystem (CLI, Hermes, debugging tools)
• Solid understanding of iOS and Android build systems (Gradle, Pods, signing/provisioning). You must have the ability to read native code (Swift/Kotlin) to debug platform-specific issues
• Familiarity with modern React patterns (Functional Components, Hooks) and state management libraries (Redux Toolkit, Zustand, or TanStack Query)
• Experience writing unit tests using Jest and familiarity with End-to-End (E2E) testing concepts
• Ability to explain technical concepts clearly to diverse teams
• English: Upper-Intermediate or higher (B2/B2+, written and spoken). You need to be able to communicate clearly in English to work effectively in an international team and participate in architectural discussions

Nice to Have

• Experience launching and maintaining a B2C app with 100k+ Monthly Active Users (MAU)
• Hands-on experience writing Native Modules or JSI/TurboModules from scratch
• Familiarity with mobile analytics tools (Segment, Amplitude) and A/B testing implementation
• Experience with automation tools like Maestro or Appium
• Knowledge of backend fundamentals (Node.js) to debug API integrations effectively

What We Offer

• Your code will impact millions of users globally. Performance optimizations you implement will translate into immediate value and improved user experience
• Work with the latest React Native tools and standards (TypeScript, Hermes, etc.) without being bogged down by legacy spaghetti code
• A collaborative environment with rigorous code reviews and knowledge sharing - we value the best idea, regardless of title or seniority
• A high level of ownership where you can see your features go live quickly in a fast-paced environment

We are looking for a Senior React Native Engineer to join our mobile team. You’ll help build and optimize the Snips app used by millions worldwide, crafting experiences as seamless and addictive as TikTok, but for premium entertainment.

What you’ll do

• Develop and optimize React Native app (iOS/Android).
• Build scalable, high-performance video experiences (feeds, streaming, subtitles, offline, player customization).
• Implement advanced UI/UX flows optimized for vertical video and TikTok-style engagement.
• Collaborate closely with backend, AI, and product teams to ship features that impact millions of users.

• Ensure code quality, testing, performance, and reliability across devices and networks.

   

What we’re looking for

• Must - 5+ years of professional experience in mobile development, with at least 3 years in React Native.
• Track record in B2C, gaming, or e-learning apps at high scale.
• Strong expertise in one or more of the following: mobile streaming, video/real-time/social/TikTok-style UX patterns.
• Deep understanding of performance optimization, animations, offline caching, and adaptive streaming (HLS/DASH).
• Core Technical Expertise

Strong hands-on expertise with React Native internals:

• Rendering pipeline, bridge vs JSI, Hermes, Fabric (architecture-aware).
• Performance profiling using Flipper, Xcode Instruments, Android Profiler.
• Deep understanding of high-performance UI patterns, including: TikTok-style feeds, video-first UX, gesture-driven navigation.
• Complex animations using Reanimated / Gesture Handler.

Experience building and optimizing video & streaming experiences:

• Adaptive streaming (HLS/DASH), buffering strategies, lifecycle handling.
• Background/foreground transitions and memory management.

Advanced knowledge of performance optimization:

• Reducing re-renders, memory leaks, overdraw, and JS thread contention.
• Offline-first architectures, caching strategies, and resilient networking.
• Native & Platform Integration
• Comfortable writing and maintaining custom native modules in
• Swift/Obj-C and Kotlin/Java.
• Experience integrating complex 3rd-party SDKs (analytics, monetization, ads, video, payments, push notifications).

• Strong understanding of platform differences (iOS vs Android behavior, limitations, and UX nuances).

   

Nice to have

• Experience with streaming platforms.
• Exposure to data-driven personalization, recommendation systems, micro-segmentation, or content pipelines.
• Past work on apps with subscription/coin/ad monetization models.
• Experience in building things from the ground up.

Who:

We are looking for an experienced React Native Developer to join a new self-publishing platform and digital marketplace built for creators.

What:

You will develop and enhance a mobile application that enables creators to publish articles, podcasts, video series, and short-form video content directly from their phones.

When:

Immediate start.

Where:

Remote position with flexible working hours.

Why:

To help build a platform that empowers writers, filmmakers, podcasters, academics, and culture-driven creators to monetize their content and advance society through meaningful work.

Office Environment:

Product-focused, startup-style environment with high ownership, creative freedom, and direct impact on user experience.

Salary:

Competitive, based on experience.

⸻

Position Overview:

This role focuses on building core mobile creation features for a free self-publishing and digital marketplace platform. Your initial priorities will include implementing content creation flows for articles, podcasts, video series, and a short-form video feed, with a strong emphasis on performance, reliability, and user experience.

⸻

Key Responsibilities:

• Develop and maintain a React Native mobile application using React Native CLI

• Build content creation flows for articles, podcasts, video series, and short-form video

• Implement navigation and state management using React Navigation and MobX

• Integrate APIs and manage data flow using axios

• Implement in-app purchases using StoreKit (native Swift integration)

• Work with local storage and performance-critical data using react-native-mmkv

• Implement audio playback features using react-native-track-player

• Collaborate closely with product and design teams to shape creator-focused workflows

• Ensure high performance, stability, and scalability across iOS devices

⸻

Required Skills:

• Strong experience with React Native (CLI)

• Solid knowledge of React Navigation and mobile UX patterns

• Experience with MobX or similar state management solutions

• Hands-on experience integrating REST APIs using axios

• Experience with in-app purchases (StoreKit on iOS)

• Familiarity with react-native-mmkv for local storage

• Experience implementing media playback (audio/video)

• Strong understanding of mobile performance optimization

• Ability to work independently and take ownership of features

⸻

Nice to Have:

• Experience building creator tools or content platforms

• Experience with short-form video feeds or media-heavy applications

• Familiarity with App Store submission and review processes

• Interest in creator economy, publishing, or cultural platforms

⸻

If you’re excited about building tools that help creators publish, monetize, and share meaningful content with the world — we’d love to hear from you.

We're seeking an experienced Senior Front End Developer to join the LeverageIT engineering team. You'll build and maintain modern web applications using a cutting-edge React-based tech stack, delivering exceptional user experiences.

Key Responsibilities

Architect and develop robust, scalable front-end solutions using React and TypeScript. Take ownership of complex features from conception through deployment, writing clean, maintainable code. Collaborate with designers to implement responsive interfaces and work with backend engineers to integrate APIs and optimize data fetching. Mentor junior developers through code reviews, establish coding standards, and optimize application performance. Build reusable UI components and maintain documentation.

Required Qualifications

• 5+ years of professional front-end development experience
• Strong expertise in React 18+ and TypeScript (advanced types, generics)
• Deep understanding of modern JavaScript (ES6+) and asynchronous programming
• Solid experience with Vite or similar modern build tools (Webpack, Rollup)
• Expertise in SCSS/Sass for styling
• Hands-on experience with Zustand, Redux, or similar state management
• Proven ability with Tanstack Query (React Query) or similar data fetching libraries
• Strong understanding of responsive design and mobile-first development
• Experience with Reactstrap or similar component libraries
• Proficiency with Git and collaborative workflows
• Excellent problem-solving skills and attention to detail
• Strong communication and team collaboration abilities

Technical Stack

• Framework: React with TypeScript
• Build Tool: Vite
• UI Components: Reactstrap (Bootstrap for React)
• Data Fetching: Tanstack Query (React Query)
• State Management: Zustand
• Styling: SCSS (Sass)

Nice to Have

• Experience with testing frameworks (Jest, React Testing Library, Cypress)
• Knowledge of accessibility standards (WCAG)
• Experience with CI/CD pipelines
• Contributions to open-source projects
• Experience with micro-frontend architectures
• Knowledge of performance monitoring tools

About Behavox

Behavox is a cloud-native AI company providing an integrated controls platform for global banks, asset managers, hedge funds, private equity firms, insurance businesses, and commodity firms. The platform unifies communications and trade surveillance, compliant archiving, policy management as well as front-office analytics on a single, AI-native technology stack, delivered as a globally scalable SaaS-based cloud service.

At Behavox, our engineering culture is built around speed, experimentation, and technical excellence, following agile principles and rapid iteration. We constantly test and adopt the latest cloud technologies and AI tooling, optimising for fast feedback loops and execution. We look for people who can move fast, challenge conventional wisdom, and who want to work at the frontier of modern AI, SaaS platforms, and distributed systems.

Behavox is a high-performance organisation with a strong bias toward delivery, ownership, and responsibility. We commit, and we execute. We are building systems that are complex, mission-critical, and global in scale; systems that many consider too large or too difficult. To do that, we seek the smartest, most technically capable engineers and technologists who take end-to-end responsibility and want to win by building what others cannot.

Founded in 2014 and backed by SoftBank Vision Fund, Behavox is headquartered in London, with offices worldwide, including New York City, Montreal, Seattle, Singapore, and Tokyo.

About the Role

The Software Engineer (React) at BCL3 designs, develops, and evolves frontend applications that support core product capabilities. The role focuses on delivering production-grade user-facing features that may span multiple frontend modules or applications, with attention to correctness, performance, scalability, and maintainability.

At this level, the engineer works autonomously within established technical direction, owning frontend components or applications end to end from a technical perspective. The role requires independent problem solving, sound engineering judgment, and accountability for design decisions, code quality, and frontend behavior in large-scale, user-facing systems.

What You'll Bring

1. Advanced React application development: Knowledge of React, modern JavaScript and TypeScript, component architecture, state management, and frontend frameworks used to build scalable web applications.
2. Large-scale frontend architectures: Understanding of modular frontend architectures, shared component systems, application composition, and interaction patterns across complex user interfaces.
3. Cloud-hosted frontend delivery: Knowledge of deploying and running React applications using cloud-based build, hosting, and content delivery platforms, including environment configuration, access control and runtime behavior.
4. Frontend data integration: Knowledge of integrating frontend applications with backend services using APIs, including data modeling, error handling, and performance considerations.
5. Software development lifecycle concepts — Understanding of lifecycle stages, dependencies, and constraints that influence how frontend features are designed, delivered, tested, and supported within a controlled SDLC.

What You'll Do

1. Software development lifecycle execution: Owns the delivery of assigned frontend features through cross-discipline collaboration, requirements analysis, design, implementation, testing, code review, deployment readiness, and supportability within established SDLC processes.
2. React feature implementation: Implements well-defined frontend features and enhancements using React and TypeScript, ensuring correct behavior, test coverage, and adherence to established design patterns.
3. Unit, integration, functional and contract testing: Designs and implements unit, integration, functional and contract tests for frontend features, validating user workflows, API interactions, error handling, and edge cases to ensure production-ready behavior and prevent regressions.
4. API-driven frontend integration: Designs and implements frontend data flows using backend APIs, ensuring correct contracts, efficient data handling, and resilient, responsive and usable user experiences.
5. Scalability-focused frontend development: Implements frontend solutions that handle high user concurrency and complex UI states through efficient rendering, state management, caching strategies, and performance optimization techniques.

What We Offer & Expect

1. The opportunity to work on a global, mission-critical AI platform alongside the best engineers and technologists across multiple geographies.
2. A role with real ownership and impact, building complex systems at scale in an environment that values speed, experimentation, and technical excellence.
3. A highly attractive benefits package, including competitive cash compensation, an equity award aligned with long-term value creation, and comprehensive health insurance for employees and their families.
4. A modern, comfortable office in central Lviv, with an expectation of working from the office three (3) days per week, reflecting our belief in strong in-person collaboration, while remaining flexible to accommodate occasional personal circumstances that may require working from home.
5. A generous time-off policy of 30 days annually, plus public holidays and sick leave, recognising the importance of sustained high performance.

About Our Process

Our selection process is designed to rigorously assess a candidate’s depth of technical knowledge, problem-solving ability, and alignment with Behavox’s mission and core values.

As part of the process, candidates will first participate in a series of interviews focused on evaluating their technical expertise and engineering judgment. Candidates who successfully progress through these interviews will then be invited to complete a live technical exercise with a group of Behavox engineers and engineering managers. The purpose of this live technical assessment is to validate the candidate’s stated technical competencies and assess their ability to solve complex problems with speed, accuracy, and sound engineering judgment. Note that whenever possible, we aim to conduct interviews in person at our offices.

We recognise and respect the time candidates invest in this process. In return, Behavox commits significant time and resources to ensure that those who join us have the capability, judgment, and alignment required to operate at the speed and level of complexity our work demands. We value efficiency and clarity on both sides; if at any point we determine that a candidate is not a fit, we reserve the right to immediately conclude the interview or the technical assessment.

Please note the following:

• A core objective of the process is to objectively assess individual knowledge and competencies. The use of AI tools or external assistance during live interviews or technical exercises is strictly prohibited (unless explicitly instructed otherwise) and will result in immediate disqualification.
• Interviews and technical sessions may be recorded for internal review to support fairness, consistency, and collaborative decision-making within the hiring team.

Tech Level: Senior
English Level: Upper-Intermediate
Employment Type: Full-time
Candidate Location: Poland
Working Time Zone: CET
Start Date: ASAP
Planned Duration: 12 months

Customer Description
A regulated digital asset company delivering services related to digital assets with a strong focus on regulatory compliance, security, and operational stability. The company operates in multiple global locations and serves both institutional and private clients.

Project Phase: Early-stage

Project Team
Project Manager, Internal Technical Lead, Internal Senior Engineer

Soft Skills

• Strong ownership mindset
• Proactive responsibility for assigned features
• Readiness to investigate and resolve issues efficiently
• High level of proactivity in communication and problem-solving
• Ability to spot gaps and incomplete work
• Willingness to suggest improvements and alternative solutions
• Ability to constructively challenge ideas
• Strong focus on quality
• Habit of independently testing own work
• Ability to improve acceptance criteria when needed
• Strong attention to detail
• Accountability for results rather than just tasks
• Creative and solution-oriented thinking

Requirements

• 5+ years of hands-on experience with React Native using TypeScript
• Strong understanding of modern React patterns and state management (e.g. Zustand, Jotai Toolkit)
• Experience with React Query or similar server-state management libraries
• Hands-on experience with mobile navigation solutions (React Navigation or Expo Router)
• Understanding of secure storage and basic mobile security principles
• Experience with unit and integration testing for React Native applications
• Ability to work with native modules
• Basic skills in configuring and troubleshooting Xcode and Android Studio
• High standards for code quality and delivery

Nice to Have

• Experience with banking or financial products
• Experience with enterprise-level CI/CD pipelines for mobile applications
• Familiarity with Expo modules and configuration plugins
• Experience designing scalable mobile application architectures

Responsibilities

• Develop a mobile application from scratch (greenfield project)
• Design and implement the overall application architecture
• Choose and configure the technology stack
• Set up and support CI/CD pipelines and core infrastructure
• Define development workflows and engineering best practices
• Contribute to building a solid technical foundation for the product
• Work closely with product management and internal technical leaders
• Take part in technical and architectural decision-making
• Deliver production-ready, high-quality solutions

Technology Stack
React Native, TypeScript, Zustand/Jotai, React Query, React Navigation/Expo Router, Expo, CI/CD, Mobile Security

Interview Process

• English check (15 minutes)
• Internal technical interview (1 hour)
• Client interview (1 hour)

Ми шукаємо Middle Front-End Developer (ReactJS) до продуктової команди.

Ви працюватимете над складним високонавантаженим вебзастосунком із фокусом на продуктивність, масштабованість та чисту архітектуру.


We are looking for a Middle Front-End Developer (ReactJS) to join our product team.

You will work on a complex, high-load web application with a strong focus on performance, scalability, and clean architecture.

Hard Skills:

• 4–5+ years of relevant commercial experience with React + TypeScript
• Strong JavaScript (ES6+) and React.js
• Experience working with legacy codebases
• Solid understanding of OOP (classes, inheritance, encapsulation)
• Experience with both class-based and functional approaches
• State management with Redux + Redux-Saga
• Writing unit tests
• Experience in performance optimization and code refactoring
• Working with WebSockets
• Animations: GSAP, Lottie, native CSS/JS animations
• Understanding of frontend–backend interaction
• Good knowledge of how browsers work
• Knowledge of HTTP, CORS, cookies

We’re looking for a Senior React Native Engineer who thinks beyond “just mobile”: someone who can see the system as a whole, understands how a product runs in production, and feels comfortable working at the intersection of mobile development, backend, and infrastructure.
 

Project

This is a high-scale SaaS product where the mobile application is a key part of the ecosystem: a user-facing interface that operates under real load, integrates with backend services, and requires stability, speed, and predictable release delivery.

In this role, it’s important not only to “build UI,” but also to understand how technical decisions impact performance, reliability, integrations, and operational support.

What you’ll do

- Develop and maintain a React Native mobile application (UI, architecture, quality, performance).

- Improve the stability and scalability of the mobile solution within a SaaS platform.

- Collaborate with backend and infrastructure components: understand integrations, APIs, caching, search, and asynchronous processes.

- Participate in solution design with the team (architecture discussions, technical trade-offs, best practices).

- Help improve delivery processes: CI/CD, release quality, observability, and overall engineering discipline.

What we expect

- Strong experience with React Native and UI development (components, state management, navigation, optimization).

- Broad technical background and a full-stack mindset: understanding how mobile applications operate in production and interact with the platform.

- Understanding or hands-on experience with some of the following technologies:
Kubernetes, OpenSearch, Redis, AWS/GCP, GitHub Actions (at a level sufficient to collaborate effectively with the platform/infra teams).

- Nice to have: basic understanding of Java (to navigate related services/ecosystems).

- Experience working on high-scale SaaS or similar products/environments with significant load.

- English C1+ for daily communication and working with technical documentation.

Nice to have

- Experience improving mobile app performance (profiling, rendering optimization, memory/performance tuning).

- Experience with observability practices (logging, metrics, tracing) or participation in incident/debug processes.

- Understanding of security and best practices for mobile clients in B2B/SaaS environments.

If you would love to operate in an agile team that’s known for efficient decision-making processes and contribute to its success with your outstanding Javascript skills - right me back, do not hesitate  

Basically, your duties will be:

• Conceptualize and implement high-quality features, diagnose bugs, and provide effective solutions
• Develop our REST APIs
• Optimize existing backend code and database queries for performance, testability, and scalability
• Cooperate with the local and international agile development team
• Design and implement new features
• Utilize AWS services (Lambda, Transcribe, S3)

Requirements:

• Strong knowledge and experience with React.js, Typescript Next.js and MobX
• Proficiency in AWS services (Lambda, Transcribe, S3).
• Experience with GraphQL and RESTful API design.
• Strong skills in using PostgreSQL and Redis.
• Spoken English for effective communication.

Nice to have :

• Knowledge and experience with Node.js

• Knowledge of ffmpeg for media processing.
• Experience integrating ChatGPT or other AI tools.

What We Offer:

• A unique opportunity to work in a fast-moving, international scaleup atmosphere with highly motivated and open-minded colleagues.
• A competitive compensation package, including 20 paid vacation days and paid sick leave.
• A comfortable office in the heart of Kyiv, with the flexibility to work remotely.
• Flexible working hours to accommodate your lifestyle.
• Opportunities to participate in tech talks, hackathons, and technical conferences around the world.
• If this sounds like the perfect opportunity for you, don’t hesitate—write us back and let’s start the conversation!

Про компанію CML Team 

CML Team is a powerhouse in global technology consultancy, focusing on Fintech, Real Estate, and Hospitality. Our expertise has led startups to secure over $1.5 billion in funding over the last five years. We excel in fast-tracking the success of high-growth startups with our deep industry insights and innovative approach.

We are on a mission to craft solutions that far exceed expectations, combining robust backend development with outstanding UX/UI design to ensure technical excellence and seamless user experiences.

We're in search of bright minds and 10X developers eager to innovate, experiment with new technologies, and pioneer unconventional approaches. Our team is a dynamic blend of experienced professionals dedicated to pushing boundaries and delivering tailored solutions that create significant value.

Join CML Team, where innovation is at the core of everything we do. Here, every project is an opportunity to explore new frontiers and redefine the future of technology. If you're ready to challenge the status quo and leave a lasting impact, we want you on our team.

Requirements

Bachelor's degree in Computer Science or a related field, minimum 1 year of hands-on experience at a company (not freelance), and strong English proficiency (written and spoken) are mandatory.

About the Role

We are seeking a Junior React Native Developer with a focus on Android to join our development team. This role is ideal for developers who want to specialize in mobile app development, with an emphasis on reskinning and customizing existing applications. You'll work with cutting-edge AI tools and learn innovative technologies.

No prior experience with AI tools required – we'll teach you everything you need to know.

Key Responsibilities

• Develop and maintain React Native applications for Android
• Perform reskinning and design adaptations of existing applications
• Customize UI/UX according to client requirements and branding
• Write clean, maintainable, and well-documented code
• Work closely with the design team to implement pixel-perfect designs
• Debug and resolve Android platform-specific issues
• Learn and apply AI-assisted development workflows to boost productivity
• Participate in code reviews and contribute to team best practices

Required Skills & Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Minimum 1 year of hands-on development experience at a company (not freelance)
• Practical experience with React Native
• Solid understanding of the Android platform (lifecycle, permissions, build process)
• Proficiency in JavaScript/TypeScript
• Experience with Git
• Understanding of React Native styling and ability to implement designs from Figma/Sketch
• Ability to work with REST APIs
• Excellent spoken and written English is a must (working with clients in Israel and the U.S.)
• Ability to work independently, high energy, and excellent communication skills
• Self-discipline and responsibility – essential for remote work success

Nice to Have

• Experience with Android Native (Java/Kotlin)
• Familiarity with Android Studio and debugging tools
• Experience with state management (Redux, Zustand, MobX)
• Knowledge of app deployment to Google Play Store
• Familiarity with Firebase (Analytics, Crashlytics, Push Notifications)
• Experience with React Native animations (Reanimated, Lottie)
• Basic understanding of mobile CI/CD (Fastlane, Bitrise)
• Experience with AI tools such as ChatGPT, Cursor, GitHub Copilot, or Claude

What We Offer

• Comprehensive AI tool training with hands-on onboarding
• Real-world experience working on actual client projects
• Clear growth path with defined milestones
• Free access to Udemy courses and other learning resources
• Young, dynamic, and supportive team
• Full flexibility – remote work from anywhere

Work Setup

• Location: Fully remote
• Schedule: Sunday to Thursday, 9:00 AM – 6:00 PM (Israel time)
• Requirements: Reliable high-speed internet and a quiet workspace suitable for video calls

Welcome to Drawer.AI!

What we do:

AI-driven workflows that let estimators pull quantities and costs from complex PDF drawing sets.

Stage:

Seed-funded, revenue-generating, aiming for a Series A in 2026.

Why join now:

Real customers are pushing our roadmap faster than our current front-end team can Join our stellar team at Drawer.AI, where excellence meets opportunity. We offer a competitive salary, real ownership, and an outstanding work environment where senior engineers directly shape the product and its future.
 

We’re looking for a Senior Three.js / WebGL Developer to build interactive, high-performance WebGL features for a product environment.

This is a hands-on role with ownership over rendering architecture, performance, and user experience.

Key Responsibilities:

• Build complex interactive web experiences using Three.js & WebGL.
• Own rendering architecture, scene structure, and performance strategy.
• Integrate WebGL / Three.js functionality into React-based web applications.
• Optimize rendering pipelines, GPU usage, and browser memory performance.
• Work closely with Product and cross-functional engineering teams.
• Make senior-level technical decisions related to visual systems and performance trade-offs.

Requirements:

• 5+ years of experience in frontend development with a strong focus on interactive graphics.
• 3+ years of hands-on experience with Three.js / WebGL in production environments.
• Deep understanding of 3D rendering pipelines, scene optimization, and GPU performance.
• Strong knowledge of JavaScript and TypeScript.
• Proven experience optimizing rendering performance, memory usage, and large or complex scenes.
• Experience integrating Three.js / WebGL solutions into complex web applications.
• Product-oriented mindset and ability to work independently.
• Senior-level ownership, architectural thinking, and technical decision-making.

Nice to have:

• Experience with React Three Fiber.
• Knowledge of GLSL / custom shaders.
• Background in complex visual, CAD-like, or highly interactive web interfaces.
• Experience working in fast-paced startup or product teams.

Join our stellar team at Drawer.AI, where excellence meets opportunity. We offer a competitive salary, real ownership, and an outstanding work environment where senior engineers directly shape the product and its future.

Admiral Studios is a fast-growing Ukrainian IT outsourcing company, specializing in web development, mobile development, UI/UX, and SEO.

We embrace the latest and most advanced technologies: Node.js, React, Laravel, Shopify, Python, and WordPress.

We create quality projects for clients in the US, Europe, the UK, and Canada 🌍, especially Healthcare, Real Estate, and E-commerce projects.

Currently, our team consists of more than 60+ skilled experts 👨‍💻, and we are constantly growing.

Now we’re looking for a React Native Developer ⭐️ to join our fast-growing IT outsourcing company. We’re expanding our strong web development team and building a brand-new mobile development department.

For a perfect match, we expect  🎯

• 1.5+ years of commercial experience with React Native
• Strong knowledge of JavaScript, ES6+, TypeScript
• Hands-on experience with REST API and WebSockets
• Solid understanding of the React Native lifecycle (including state management, component lifecycle, and virtual DOM)
• Hands-on experience with Expo Go
• Experience with Redux, MobX, or similar
• Experience with Git, CI tools, Firebase, Google Cloud
• Practical experience with App Store Connect and Google Play Console
• English level B1+ or higher

Nice to have 💎

• Experience with Flutter
• Experience working with both iOS and Android platforms
• Experience in testing (Unit Testing, Integration Testing)
• Experience in developing applications with Bluetooth/Wi-Fi connectivity to other devices
• Experience with animations (Reanimated, React Native Skia)

Duties & Responsibilities 💼

• Develop and enhance mobile applications using React Native
• Participate in all stages of development, from concept to release
• Optimize application performance
• Collaborate with designers, backend developers, and other team members
• Integrate APIs and third-party libraries

Why Join Admiral Studios?

⭐️Growth-Oriented Environment – value efficiency, flexibility, and results

🤝Team Spirit – Regular corporate online & offline events to keep the team connected
📚Professional Development Support – we provide:

• A structured Performance Review system
• Access to an internal knowledge library
• Career growth opportunities with a clear development plan
• A budget for improving work processes and implementing new ideas

🧘Work-Life Balance – Enjoy a flexible work schedule and a fully remote work model
✅Paid Time Off – 20 vacation days + 10 sick leave days per year
 

Hiring steps: Screening — Tech Interview — СТО Interview — Job Offer 

If your experience and skills match our candidate scorecard, the recruiting team will contact you within 5 business days 💙

Don't forget to provide your Telegram nickname for contact 

Our family-style company is looking for a strong Senior Full-Stack Software Engineer (8+ years). This is a long-term, full-time position in a startup in the field of Cyber Security and AI.

About the Role
Our client has raised more than $11 million in a seed round. The role is a backend-oriented full-stack position, but it requires strong frontend execution as well. Day-to-day work includes building and owning features end-to-end mainly across React + Node.js, but also involves a few services in GO and Python. The work includes CRUD workflows, DB schema changes SQL work, and AI integrations. You’ll work closely with developers, Team Leads, and PMs, in a highly collaborative Agile environment.

What you’ll do:

• Full-stack feature ownership (backend-leaning), including React UI work and backend/API delivery.
• Core implementation areas: CRUD flows, SQL database work, schema changes with Drizzle ORM, and AI integrations.
• Production-grade engineering: monitoring, debugging, performance optimization, and handling incidents/issues in real environments.
• Architecture work: designing systems or significantly evolving existing architectures with clear trade-off thinking (performance, scalability, cost, and maintainability).

What We’re Looking For:

• Core Languages: Type Script and Node.js (core services).
• Frontend: React, Shadcn.
• Backend & API: Node.js, Fastify / NestJS.
• Database & Storage: PostgreSQL, Drizzle ORM.
• Testing Standards: Jest (Unit tests), Playwright (E2E tests).
• Strong understanding of scalable systems and software architecture.
• Ability to mentor professionally mid- level developers.
• Startup experience (will be a significant advantage).
• Ownership of features end-to-end.
• Strong communication skills.
• Advanced English proficiency.

Nice to have:

• Experience with Go and Python (will be a significant advantage).
• Infrastructure & DevOps: AWS / GCP, GitHub Actions, Docker, CI/CD pipelines, Kubernetes.
• Technical curiosity toward cyber security / reverse engineering / traffic sniffing.

What we offer:

• A really promising long-lasting project (you will be proud of yourself).
• Sane and polite, but effective management.
• The best corporate culture (according to our teammates' opinions).
• Competitive salary and other stuff.
• Remote work, full time.
• Becoming not just another team member, but a part of UKAD with unique value and long-term relationships.

Some facts about UKAD to help you make a decision:
During 2022-2025, we only increased cooperation with our foreign partners.
UKAD combines benefits of family-sized companies, like no bureaucracy, easy access to the executives, with sustainable growth and vast opportunities.
Our company is strong enough to be not just a vendor but a tech partner. We can afford to choose customers that respect developers.
UKAD is one of the leading employers in Kharkiv, according to DOU.

Aren't we the company you're looking for?