Jobs Lviv

HESH is a Ukrainian product company working on a new manufacturing management solution. We are inviting an experienced Frontend React + React Native Developer to join our team.

The primary goal of this position is to support our team in implementing the mobile and web client of our product.

Responsibilities:

• Design and develop mobile and web functionality using React & React Native.
• Develop and optimize components.
• Ensure code and architectural solutions meet quality and performance requirements.
• Interact with other team members for joint development and system integration.
• Keep frontend part user friendly and implement best UX practices

Requirements:

• 2+ years of experience in React & React Native
• Proficiency in TypeScript
• Experience with Redux Toolkit and Redux Thunks
• Experience with HTTP and REST API
• Knowledge of SOLID principles
• Experience with delivering apps to AppStore and Google Play
• Experience with big volumes of data and representing it in React Native lists
• Effective communication and collaboration within the team

Would be a great plus (but not mandatory):

• Experience with multi tenant approach
• Experience with WebSockets

What do we offer: 

• The opportunity to grow into a leading role (Lead Frontend)
• Long-term project
• Fully remote
• Flexible schedule
• Regular performance review (once a year)
• English courses
• Annual paid vacation — 18 days
• Paid sick leave — 10 days per year
• Ability to influence the product

Hiring process:

• HR Interview
• Technical interview (with live coding)
• Offer

Let's talk and find out if we are on the right track, shall we?

Please note that the vacancy is only for candidates ready for offline format of work in Kyiv, Lviv or Uzhhorod.

Build the most meaningful apps on the latest web technologies!

ABOUT ELEMENTICA

Welcome to Elementica! We are excited to see you on our profile. Elementica is a leading global software development company – expert in delivering web development, mobile application development and IT consulting services of any complexity to clients worldwide.

www.elementica.io

JOB POSITION

We are looking for a talented React/React Native Developer to join our Development Team. You will be at the core of our talented Web and Mobile teams and focus on building the most advanced and meaningful apps and workflows on the latest technologies.

RESPONSIBILITIES AND DUTIES

As a React/React Native engineer, you will work on our next generation applications, a specific project critical to our customer’s needs. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new challenges as we continue to push technology forward.

We are Product oriented developers with a growth mindset. We are curious problem solvers and we like to collaborate, communicate, share knowledge and technical ideas and grow together.

What you’ll do:

- Develop cloud based frontend web/mobile applications

- Work in all phases of the software development life-cycle (planning, design, implementation, deployment, monitoring and support)

- Collaborate and grow in a dynamic environment while working in small, agile and cross functional teams

- Use the latest technologies to solve real problems for our customers

- Communicate and coordinate with our engineering team in Ukraine.

What we look for in you:

- Results-orientation, collaborative, pragmatic and agile mindset

- Strong knowledge in working with Javascript, Typescript

- Strong knowledge of React and React Native (cli + expo)

- Expertise with the cloud (preferably AWS or GCP)

- Expertise with cross-platform apps deployment - App Store/Google Play

- Working proficiency in English (written and verbal)

- Continuous independent learning

We are looking for these skills/experience:

* Strong knowledge of JavaScript and TypeScript

* Experience with React hooks, CSS-in-JS, Redux/MobX/Zustand

* Familiarity with MUI/Tailwind/ReactNativePaper

* Strong understanding of testing principles and tools such as Jest, React Native Testing Library, Detox or similar

* Experience working with REST APIs

* Understanding of common development principles and best practices (SOLID, DRY, YAGNI) and basic understanding of design patterns

* Experience with web/mobile performance optimizations

* Experience in CI/CD processes is a plus

* Experience in WebSockets is a plus

What we offer:

* The opportunity to drive the development of cutting-edge software products

* The chance to work on interesting technical challenges such as advanced algorithms, wide integrations or scalable content management

* A positive, highly skilled, young team with a focus on quality

* Hybrid working possibility / Home-office friendly / Flexible working hours

* Pick your own gear: Linux or IOS - whatever works best for you

* A lot of room for your own ideas. We always highly encourage you to work on them together with the team.

* Outstanding compensation based on experience and 20 days vacation

* Sponsored training opportunities with Udemy and English classes

Our job offer React/React Native Developer sounds interesting? Then we are looking forward to receiving your application!

Live experiences help people cross today’s digital divide and focus on what truly connects us — the here, the now, this once-in-a-lifetime moment that’s bringing us together. To fulfill the project’s mission of uniting the world through shared experiences, we make it easy for people to discover and access the live experiences that matter most.

With platforms on iOS, Android, mobile web and desktop supporting more than 60,000 events across the US and Canada, we are reimagining the event ticket industry in order to move at the speed of life.
The Senior Client Engineer will play a pivotal role in building and modernizing our mobile commerce applications using React Native. We are looking for someone with deep expertise in developing and scaling mobile marketplace application. The ideal candidate will bring experience in creating seamless purchase flows, real-time inventory management, and high-performance mobile commerce experiences.

Requirements:

• 6+ years of mobile development experience, with at least 5 years focused on React Native development.
• Proven experience building and scaling e-commerce or ticketing applications, particularly those handling real-time inventory and high-concurrency transactions.
• Deep expertise in React Native architecture, state management (Redux/MobX), and performance optimization techniques.
• Strong understanding of mobile commerce best practices, including payment gateway integration, secure checkout flows, and PCI compliance.
• Experience with real-time data synchronization and WebSocket implementation.
• Proficiency in native module development for iOS and Android when React Native bridges are required.
• Experience with automated testing in React Native, including unit testing, integration testing, and E2E testing.
• Knowledge of App Store and Play Store deployment processes and experience with CI/CD pipelines for mobile applications.
• Familiarity with analytics implementation and performance monitoring in mobile commerce applications.
• Previous experience working on apps with similar complexity to Gametime, SeatGeek, or other major mobile commerce platforms.

• The English level is Upper-intermediate at least.

   

Responsibilities:

• Lead the development and modernization of our React Native mobile applications, with a focus on creating robust e-commerce experiences.
• Architect and implement critical commerce features, including checkout flows, payment integration, and real-time inventory management.
• Foster a culture of code excellence, pushing for high standards in React Native design patterns, code quality, and scalable architecture.
• Optimize application performance for handling high-concurrency scenarios common in ticketing and flash sales.
• Build and maintain reusable component libraries and ensure consistent user experience across iOS and Android platforms.
• Collaborate with the product team to create intuitive purchase flows and reduce friction in the buying process.
• Lead technical initiatives around payment processing, fraud prevention, and secure transaction handling.

We offer:

• Annual paid vacation of 18 working days.
• Extra vacation days for long-lasting cooperation.
• Annual paid sick leave of 10 days.
• Maternity/Paternity leave.
• The opportunity for sabbatical leave.
• Marriage and Parenthood Package.
• Compensation for sports activities (up to 250$ per year) or health insurance covering (70%) — after the trial period.
• Internal education (corporate library, Udemy courses).
• Career development plan.
• English and Spanish classes.
• Paying taxes and managing PE (Private Entrepreneur).
• Technical equipment.
• Internal Referral program.
• Opportunity to take part in company volunteering activities.
• Sombra is a “Friendly to Veterans” award holder.

If you believe you are a suitable candidate for this position, please attach your updated resume using the provided link.
Our recruitment team will review your profile, and if it aligns with our current job openings, we will contact you shortly. If you don’t receive a reply from us within 5 business days, it means we have decided to move forward with other candidates.
Thank you for understanding.

Requirements:

📍1+ years of experience developing mobile applications using React Native

📍Familiarity with React Navigation and mobile lifecycle management

📍Experience with state management libraries

📍Experience integrating REST APIs

📍Solid knowledge of JavaScript, TypeScript, HTML, CSS

📍Basic understanding of OOP and common Design Patterns

📍Experience working with Git or other version control systems

📍Ability to communicate effectively in English (B2) or higher

📍Strong problem-solving skills and a collaborative mindset

Responsibilities:

✔️Develop and maintain cross-platform applications using React Native

✔️Collaborate with the team to build and enhance web apps using React and Next.js

✔️Participate in requirements gathering and direct client interactions

✔️Think out of the box to suggest improvements and technical solutions

✔️Ensure code quality through reviews and testing practices

✔️Debug and resolve issues in development and production environments

✔️Coordinate with backend and mobile/web developers to deliver seamless user experiences

Would be a plus:

• Experience with react-native-animations, lottie-react-native, Tailwind
• Familiarity with React (web) and Next.js
• Experience with CI/CD tools and cloud providers (e.g., AWS, Vercel)
• Understanding of SonarQube or other code quality platforms
• Experience publishing apps to Google Play Store or Apple App Store
• Familiarity with database and backend development
• Experience with E2E testing tools such as Cypress

What we offer: 😊

Flexible work schedule, the ability to work remotely upon agreement with colleagues
12 working days of paid sick leave per year
20 working days of paid vacation per year
Compensation package for Healthcare & Sport

Professional growth: 💻

Regular salary review
Professional personalized career growth: сhallenging tasks and innovative projects, meetups and events for professional development, an individual development plan, mentorship program
Spoken English courses aimed at improving communication skills (negotiation skills)

Fun:  🎉

Corporate events and exciting team buildings
Memorable anniversary presents
You become a member of the loyalty program “IT Club”

Requirements:

📍1+ years of experience developing mobile applications using React Native

📍Familiarity with React Navigation and mobile lifecycle management

📍Experience with state management libraries

📍Experience integrating REST APIs

📍Solid knowledge of JavaScript, TypeScript, HTML, CSS

📍Basic understanding of OOP and common Design Patterns

📍Experience working with Git or other version control systems

📍Ability to communicate effectively in English (B2) or higher

📍Strong problem-solving skills and a collaborative mindset

Responsibilities:

✔️Develop and maintain cross-platform applications using React Native

✔️Collaborate with the team to build and enhance web apps using React and Next.js

✔️Participate in requirements gathering and direct client interactions

✔️Think out of the box to suggest improvements and technical solutions

✔️Ensure code quality through reviews and testing practices

✔️Debug and resolve issues in development and production environments

✔️Coordinate with backend and mobile/web developers to deliver seamless user experiences

Would be a plus:

• Experience with react-native-animations, lottie-react-native, Tailwind
• Familiarity with React (web) and Next.js
• Experience with CI/CD tools and cloud providers (e.g., AWS, Vercel)
• Understanding of SonarQube or other code quality platforms
• Experience publishing apps to Google Play Store or Apple App Store
• Familiarity with database and backend development
• Experience with E2E testing tools such as Cypress

What we offer: 😊

Flexible work schedule, the ability to work remotely upon agreement with colleagues
12 working days of paid sick leave per year
20 working days of paid vacation per year
Compensation package for Healthcare & Sport

Professional growth: 💻

Regular salary review
Professional personalized career growth: сhallenging tasks and innovative projects, meetups and events for professional development, an individual development plan, mentorship program
Spoken English courses aimed at improving communication skills (negotiation skills)

Fun: 🎉

Corporate events and exciting team buildings
Memorable anniversary presents
You become a member of the loyalty program “IT Club”