Jobs Lviv, React.js

We are developing a financial platform that provides users with real-time stock market data. It helps investors track price fluctuations, analyze trends, and make informed buy/sell decisions at the right moment to maximize profits. With a focus on accuracy and usability, our solution empowers users to stay ahead in the fast-moving world of trading.
So, we are looking for a skilled Frontend Developer to create a seamless and user-friendly experience. 
 

Required skills:

— At least 6 months of commercial experience with JavaScript/TypeScript, HTML5, and CSS3;
— Hands-on experience with React, React Mosaic, Fake API, Tailwind and Trading View LightWeight;
— Familiar with MySQL/PostgreSQL;
— Experience in bug fixing and supporting existing websites;
— Proficiency with Git version control and Docker containerization;
— Understanding how to work with Linux-based systems;
— Upper-intermediate English level or higher.
 

Nice to Have:
— Experience working with WebSockets, Charts.js, Stripe API;
— Knowledge of Next.js;
— Familiarity with unit testing.
 

What We Offer:

— Opportunities for career growth and personal development, helping you enhance your skills and achieve your goals;
— Educational programs with 30% of the costs covered by the company;
— Paid vacation (21 days per year) and public holidays; 
— Competitive financial compensation with regular performance reviews;
— Company-paid outdoor team activities; 
— English language improvement through extensive communication;
— The opportunity to work with experienced and enthusiastic IT professionals eager to share knowledge and help you gain hands-on experience in a dynamic IT environment.

Inforce is a Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

Required:

- B2+ English level

- Experience with React/Redux

- Experience with REST API/HTTP methods

- Experience with Git

Responsibilities:

- Development of new system functionality and introduction of changes to existing functionality

- Write program code according to defined application architecture

- Perform analysis, verification, and debugging of the software code at the level of application units

- Estimate and set up task completion terms independently

- Use a version control system to track code optimization progress and to merge or split program code entities

- Need to attend daily team meetings

We offer:

- Competitive salary

- Interesting and challenging projects

- Future career growth opportunities

- Paid sick leave and working day vacation

- A friendly team of professionals

- Delicious coffee biscuits and tea for your good mood

- The company covers 50% of the cost of courses you need

- Exciting team-building activities and corporate parties

- Office in the city center

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

We are located in Lviv and currently work in an office format. For candidates from other cities, we offer relocation (an apartment located near the office, this option is free).

What we expect from the candidate:

- Experience in building responsive user interfaces and designs using HTML/CSS.
- Solid knowledge of JavaScript and React/Next.js.
- Understanding of the latest trends and best practices in front-end development.
- Ability to use dev tools, debugger and package managers (npm, yarn).
- Basic understanding of REST principles.
- Experience with Git.
- Knowledge of how to effectively use GitHub during teamwork.

what we offer:

- free study in our Corporate English Academy

- growth and development opportunities for young developers even if you have no commercial experience

- regular salary review (after the completion of each contract)

- provision of Apple equipment

- comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).

- timely payment of salaries.

- corporate events, teambuildings, etc.

- working on projects side by side with Senior developers, which will give you the opportunity to learn and develop.

About the vacavncy:

We are a young and rapidly growing company with almost 200 highly skilled developers of various levels.  As this opportunity requires working from our office, it is open exclusively to Lviv residents. 

We offer free English language courses for employees. Also we provide free corporate housing for our employees from other cities.

What we expect from the candidate:

- Experience in building responsive user interfaces and designs using HTML/CSS.
- Solid knowledge of JavaScript and React/Next.js.
- Understanding of the latest trends and best practices in front-end development.
- Ability to use dev tools, debugger and package managers (npm, yarn).
- Basic understanding of REST principles.
- Experience with Git.
- Knowledge of how to effectively use GitHub during teamwork.
- Excellent communication skills and a collaborative mindset, ability to work with   minimum supervision.
- Knowledge of React will be a plus.
- English level B1 - the ability to communicate with clients, to read and understand documentation in English.

What we offer:
- Personal corporate English language academy
- Flexible and accommodating working hours.
- Welcoming and amiable work environment in a comfortable office space.
- Official employment with a competitive salary that reflects your experience and skills.
- A supportive team of seasoned developers and managers.
- Exciting opportunity to contribute to innovative projects.

Pixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.

Requirements:

- Strong proficiency in JavaScript/TypeScript.
- Experience with React, Next.js.
- Proficient spoken English (B1-B2 level).
- Familiarity with Redux/React Redux.
- Experience working with REST API and HTTP methods.
- Proficient in using Git.
- Experience with React Native will be an advantage.

What We Offer:
- Flexible working hours.
- A friendly and welcoming work environment in a comfortable office.
- Official employment with a competitive salary based on your experience and skills.
- An exciting opportunity to contribute to innovative projects.

We are looking for a skilled Trainee React Developer to join our team and develop innovative projects.

Ideally, you need to have a passion for programming, great soft and English skills.
 

It is a full-time position in Lviv.

Requirements:

▪️ Solid understanding of React

▪️ Strong JavaScript skills

▪️ Knowledge of HTML5 and CSS3

▪️ English level: Intermediate+ (written, spoken)

▪️ Desire to work and study new technologies, approaches and best practices

▪️ Attentive to details

Will be a plus:

▪️ Experience with GIT/svn, REST, Social Network API’s

▪️ Bachelor’s degree in Computer Science or an equivalent

Responsibilities:

▪️ Develop a web application with React, ES6, Webpack etc.

▪️ Write clean, maintainable, and efficient code

▪️ Implement front-end functionality according to requirements

▪️ Staying current on new technologies and best practices

▪️ Communicate with the customer and team members

Interview stages:

Initial interview ➜ Technical Interview  ➜ Job offer

We offer:

▪️ IT Club membership

▪️ 18 days of vacation + 8 days of paid state holidays

▪️ Health insurance

▪️ Compensation for language trainings 

▪️ Compensation for educational courses, training, and certificates

▪️ Compensation for sport activities

▪️ Mentorship program

▪️ Employee recognition program with awards

▪️ Running club

▪️ Reading club

▪️ Cozy and pet-friendly office

▪️ Weekly sweets & fruits office days

▪️ Corporate bookshelf

▪️ Office relax zone with PS4, VR, table games, table tennis, aero hockey, mini football table, and gymnastic ladder.

We are looking for a team player!

Are you interested? We would be glad to receive your CV.

We’re looking for an experienced Solution Architect with a strong background in Node.js and React who enjoys driving architecture decisions, mentoring teams, and collaborating directly with clients.

Location: Remote / Offices in Kyiv or Lviv
Domain: FinTech / EdTech
Type: Long-term, full-time

Requirements:

• 7+ years of experience in software development with deep knowledge of JavaScript / TypeScript.
• Proven expertise with Node.js (Nest.js) and React.
• Solid background in designing scalable architectures and leading complex projects.
• Experience with AWS (or another major cloud provider).
• Strong skills in mentorship, code review, and technical leadership.
• Experience with FinTech or EdTech products.
• Participation in pre-sales, discovery, or architecture definition phases.
• English: Upper-Intermediate (strong) or higher.

Nice to have:

• Experience with Python, PHP, or .NET.
• Background in competence/SDO offices or solution audit services.

 Your Responsibilities

• Lead pre-sales activities: define requirements, risks, estimations, and high-level architecture.
• Conduct discovery phases and recommend technologies, tools, or integrations.
• Oversee R&D initiatives, POCs, and architecture validation.
• Mentor and guide development teams through code reviews and best practices.
• Participate in interviews and help build strong engineering teams.
• Support troubleshooting and contribute to improving project code quality.

 What the Company Offers

• Competitive compensation (fixed + performance-based bonus).
• Exciting long-term startup projects with modern technology stacks.
• Career development with regular performance reviews.
• Professional study support, online courses, and certifications.
• Corporate English classes and daily communication with international clients.
• VIP medical insurance or sports compensation.
• Flexible working hours (start between 8:00–11:30).
• 18 paid vacation days + sick leave.
• Cozy offices in Kyiv and Lviv (generator, Starlink).
• Coworking compensation for remote employees.
• Corporate lunches, soft skills clubs, team events, and an internal charity fund.
• Fully remote option from anywhere in the world.

We are looking for a motivated Trainee/Junior React Developer to join our growing team. You will be responsible for building and maintaining user-facing web applications, ensuring great user experience, performance, and responsiveness across all devices.
 

Responsibilities

- Develop, test, and maintain web applications using React.js (and related libraries).

- Collaborate with backend developers to integrate APIs and ensure smooth data flow.

- Write clean, maintainable, and reusable code following best practices.

- Optimize applications for maximum speed and scalability.

- Participate in code reviews and contribute to improving overall code quality.
 

Requirements

- Basic experience in frontend development using React.js.

- Good understanding of JavaScript (ES6+), HTML5, and CSS3.

- Familiarity with state management (Redux, Zustand, or Context API).

- Understanding of RESTful APIs and integration with backend services.

- Ability to work with version control systems (Git).

- English level: Upper-Intermediate.
 

Nice to Have

- Experience with Next.js or TypeScript.

- Knowledge of UI libraries (Material UI, Chakra UI, etc.).

- Basic understanding of backend development (Node.js, Python, etc.).

- Familiarity with Docker or CI/CD pipelines.

- Experience working in an Agile/Scrum environment.

We are looking for a motivated Trainee/Junior React Developer to join our growing team. You will be responsible for building and maintaining user-facing web applications, ensuring great user experience, performance, and responsiveness across all devices.
 

Responsibilities

— Develop, test, and maintain web applications using React.js (and related libraries).

— Collaborate with backend developers to integrate APIs and ensure smooth data flow.

— Write clean, maintainable, and reusable code following best practices.

— Optimize applications for maximum speed and scalability.

— Participate in code reviews and contribute to improving overall code quality.
 

Requirements

— Basic experience in frontend development using React.js.

— Good understanding of JavaScript (ES6+), HTML5, and CSS3.

— Familiarity with state management (Redux, Zustand, or Context API).

— Understanding of RESTful APIs and integration with backend services.

— Ability to work with version control systems (Git).

— English level: Upper-Intermediate.
 

Nice to Have

— Experience with Next.js or TypeScript.

— Knowledge of UI libraries (Material UI, Chakra UI, etc.).

— Basic understanding of backend development (Node.js, Python, etc.).

— Familiarity with Docker or CI/CD pipelines.

— Experience working in an Agile/Scrum environment.

Key Requirements

HTML/CSS/Preprocessors:

• Strong command of HTML5 and CSS3.
• Hands-on experience with SASS, including mixins and style generators.
• Ability to build websites that work smoothly across different browsers, adapt to various screen sizes, and include responsive mobile layouts.

JavaScript/TypeScript:

• Confident use of modern JavaScript (ES6+).
• Solid foundational understanding of TypeScript.
• Competence in handling and managing DOM events.

React & State Management:

• Practical background in developing applications with React.
• Experience applying modern React hooks in real projects.
• Working knowledge of state management tools, including Redux

Our client is the leading property portal in the Middle East and North Africa (MENA) region, dedicated to shaping an inclusive future for real estate while spearheading the region’s growing tech ecosystem. At its core is a clear and powerful purpose: to change living for good in the region. Our client connects millions of property seekers with thousands of real estate professionals every day across multiple countries in the region. The platform offers a seamless and enriching experience, empowering both buyers and renters to make informed decisions. Since its inception in 2007, our client has evolved into a trusted partner for developers, brokers, and home seekers. As a lighthouse tech company, it continues to create an environment where people can thrive and contribute meaningfully to the transformation of real estate in MENA.

Requirements:

• 4+ years of experience as a Fullstack Engineer, Backend Engineer, or Frontend Engineer, with proven expertise across both Go and React/React Native.
• Strong understanding of microservices, distributed systems, and modern frontend architectures.
• Demonstrated ownership mindset with the ability to deliver results across large, complex systems.
• Strong analytical thinking and problem-solving capabilities.
• Excellent communication and organizational skills.

• Proficient in spoken and written English.

   

  Technical Skills:

• Strong hands-on experience with Go (Golang) for backend service development.
• Proficient in React and/or React Native for frontend and mobile development.
• Solid knowledge of TypeScript and modern JavaScript (ES6+).
• Experience designing and integrating RESTful or gRPC APIs; familiarity with GraphQL is a plus.
• Strong understanding of concurrency patterns in Go (goroutines, channels).
• Experience working with relational or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB, Redis).
• Familiarity with frontend tooling (Webpack, Babel, Metro, ESLint, Prettier).
• Experience with automated tests for backend (unit/integration) and frontend (Jest, RTL, Detox).
• Comfortable working with Docker, Kubernetes, and cloud infrastructure (AWS, GCP, or Azure).

• Understanding of application performance profiling and debugging across frontend and backend.

   

  Preferred Qualifications:

• Experience building scalable, high-traffic consumer-facing platforms, marketplaces, or SaaS products.
• Exposure to event-driven systems, message queues, or streaming platforms (e.g., Kafka, NATS, RabbitMQ).
• Experience with performance benchmarking for Go services and optimization of React/React Native apps.
• Experience working in polyglot environments with Go, TypeScript, and shared component libraries.

• Familiarity with infrastructure-as-code or DevOps practices.

   

Responsibilities:

• Design, build, and maintain scalable backend services and APIs using Go (Golang).
• Develop high-quality frontend interfaces using React and/or React Native for web and mobile applications.
• Own and deliver major system components end-to-end, from backend architecture to user-facing experiences.
• Collaborate with product, design, and engineering teams to translate requirements into robust, performant solutions across the entire stack.
• Implement clean, maintainable, and well-tested code across Go, TypeScript, React, and React Native environments.
• Integrate frontend applications with backend services (REST, gRPC, or GraphQL) and ensure seamless data flows.
• Optimize application performance across backend systems, web clients, and mobile apps.
• Participate in code reviews, pair programming, and architectural discussions to improve engineering quality and standards.

• Support CI/CD pipelines, automated testing workflows, and deployment processes for both frontend and backend components.

   

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.
• 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.

Senior React Developer 

Intro 

We are looking for a Senior React Developer to join our team working with a Silicon Valley startup on a mission-critical AI assistant for military vehicles. This product is already actively deployed and used by the Ukrainian Army to support their operations. We are committed to this mission and provide our help to the UA army for free. 

You will drive the development of our web interfaces, ensuring high performance, responsiveness, and reliability for a system that operates in critical environments. 

Technologies 

• Frontend: React, Vite, Tailwind CSS, TypeScript, Playwright 
• Backend: REST API in Python (FastAPI), Supabase 
• Infrastructure: Cloud-native platform on Kubernetes with CI/CD 
• AI/LLM: Integration with AI agents and RAG workflows 

Responsibilities 

• Design and implement complex, responsive user interfaces using React and TypeScript. 
• Optimize application performance for low-latency and high-reliability environments. 
• Collaborate with the Backend and AI teams to integrate real-time data and AI-driven features. 
• Establish frontend engineering standards, code quality, and testing practices. 
• Mentor other engineers and contribute to architectural decisions on the client side. 
• Ensure the application is robust and user-friendly for operators in the field. 

Requirements 

• Deep experience building complex web applications with React and TypeScript. 
• Strong understanding of modern frontend build tools, state management, and performance optimization techniques. 
• Solid understanding of RESTful APIs. 
• Mission-driven mindset with a focus on reliability and user experience. 
• Ability to work independently and collaborate effectively in a fast-paced environment. 

Компанія berko.tech шукає Frontend-розробника з знаннями React Native та Next.js для участі в розвитку сучасних цифрових продуктів. Ми команда, яка спеціалізується на створенні технологічно зрілих рішень для клієнтів з Європи та США.

Ми цінуємо швидкість, структурованість, відповідальність та відсутність зайвої бюрократії. У нас кожен член команди впливає на результат, від архітектури до взаємодії з замовником.

Основні вимоги:

• Практичний досвід з React, React Native та Next.js
• Обов’язково: досвід активного використання AI-інструментів (GitHub Copilot, ChatGPT, або подібні) у щоденній роботі
• Вміння самостійно організувати робочий процес: вести таски, створювати естімейти, спілкуватися з командою або клієнтами
• Англійська на рівні B2+ (усна/письмова) - буде великим плюсом
• Від півроку досвіду.
   

Ми пропонуємо:

• Погодинна оплата в USD з регулярним переглядом ставок
• Повністю гнучкий графік - працюй у зручний час, якщо це дозволяє проект
• Мінімум мітингів, максимум фокусу на глибоку роботу
• Участь у проєктах, де твоя думка має значення - реальний вплив на рішення
• Комфортний новий офіс з сучасними умовами праці
• MacBook + зовнішній монітор - надаємо техніку під проєкти

berko.tech - це місце, де кожен розробник працює як інженер, а не як «кнопкодав».