Jobs Lviv, JavaScript / Front-End

Requirements

• 3+ years of experience with React.js and TypeScript
• Strong understanding of HTML5, CSS3, and modern styling techniques
• Experience with TailwindCSS or TSS-react
• Comfortable working with RESTful APIs
• Deep understanding of component architecture, state management
• Experience integrating with REST APIs and handling async data
• Ability to read, understand, and improve existing code
• English level at Upper-Intermediate level or higher
• Design background (education or past work)
• Experience designing and maintaining complex design systems in Figma
• Understanding of UI/UX principles
• Ability to read and implement designs correctly
• Experience with components, grids and layouts
• Attention to details (spacing, typography, alignment)

Nice to Have:
 

• Experience with Next.js and App Router
• Familiarity with shadcn/ui or other modern headless UI libraries
• Experience integrating or working with CMS platforms like Prismic or Strapi
   

We offer:
 

• 21 vacation days, 8 sick leave days, 7 additional days off if needed, and a day off on your birthday
• Medical insurance or  compensation for sports expenses
• 50% compensation for education expenses—lectures, conferences, and English courses
• An amazing and friendly team. Check out our Instagram and DOU
• A comfortable office close to the city center
• Flexible work schedule
• No bureaucracy or micromanagement—we follow a Scandinavian management model

The Software Engineer is a hands-on developer and is responsible for creating software solutions that will help grow as a business. Use your talent to innovate and transform complex concepts into clean, simple solutions. Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.

Business we build solutions for is an office supply retailing company which employs about 38,000 associates and operates 1,400 retail stores, e-commerce sites and a business-to-business sales organization. Across the job areas of retail, sales, supply chain and corporate, the company makes transformation of their product to the new level.

Main responsibilities:

• Write well-documented, highly maintainable and performing code, with appropriate test coverage
• Investigate and resolve application issues, bottlenecks and inefficiencies
• Demonstrate in-depth experience with e-Commerce and web application technologies, especially in the areas of writing high performance, reliable and maintaining code
• Conduct and participate in code reviews that span multiple languages and applications
• Supports and develops software engineers by providing advice, coaching, and feedback as well as conducting design sessions, assisting in code deployments and day-to-day operations
• Regularly dive into architecture, code, test plans, project plans, etc.
• Participate in Agile Ceremonies to provide feedback and communicate issues/blockers and communicate project status.

Requirements:

• Excellent 'vanilla' modern (ES2015+) JavaScript skills (essential)
• Excellent SASS/CSS skills (essential)
• Excellent HTML skills (essential), ideally with JSTL knowledge
• Knowledge of web security
• Knowledge of accessibility standards
• Knowledge of testing front-end work, both in-browser and code-based (such as Jest)
• Knowledge of responsive design
• Knowledge of build tools, such as Webpack
• Knowledge of GIT
• Standard 'ways of working' knowledge, such as conducting code reviews, working in an Agile team etc.
• Upper-intermediate level of English

Department/Project Description

Long-term project involving development of the Roku TV streaming application for an international broadcasting company headquartered in New York, US. The company owns several television channels/brands and would like to upgrade their existing Roku application.


Location - Lviv (hybrid mode)

Job Description

We're excited if you have

• Web development experience building high traffic, consumer-facing websites
• Good culture fit and excellent team player
• Good level knowledge of JavaScript
• Knowledge of the latest open standards and web technologies
• Ability to decompose complex problems into manageable units of work
• Excellent verbal and written communication skills.
• Understanding of React fundamentals

Bonus:

• Experience with ReactJS, Express, PageSpeed, SASS/LESS, AWS, Node.js 
• BS or MS degree in Computer Science or equivalent.

Job Responsibilities

What you'll be doing

• Build innovative features for the Roku streaming TV application
• Code, test, document and deliver features with cross-browser compatibility, accessibility
• Determine the strategic and tactical direction of the front-end architecture
• Participate in Agile development process, including scoping, technical design, estimation effort, coding, testing, debugging, code reviews, maintenance and support
• Collaborate with program managers, marketing, designers, software engineers in tests to build and enhance the UI
• Innovate and create the best user experience online

We are looking for a Strong Junior Front-End Developer with solid knowledge of JavaScript, TypeScript, React, and Next.js to join our team and contribute to the development of modern digital products. 

Requirements: 

• Hands-on experience with React and Next.js 

• Strong understanding of REST APIs 

• Active use of AI-powered tools in the development workflow 

• Ability to independently organize your work: manage tasks, create estimates, and communicate effectively with the team and/or clients 

• English - B1/B2+ (spoken and written) 

We Offer: 

• A stable salary with regular performance-based reviews 

• Flexible working hours - plan your schedule the way it suits you 

• Participation in projects where your voice truly matters - real influence on decision-making 

• A comfortable modern office equipped for productive work 

• MacBook + external monitor provided for project needs 

• A supportive environment focused on growth, responsibility, and continuous improvement If you believe you have the right skills and mindset, we’d be happy to review your application.

About the company:
We specialize in building technologically advanced solutions for clients across Europe and the United States. We value speed, structure, ownership, and a no-bureaucracy approach. Every team member has a real impact on the final product - from architectural decisions to direct interaction with the client.

PLEASE NOTE that we are searching for candidates who are located in Lviv/Kyiv and are able to visit office in Lviv/Kyiv.

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

We are looking for a passionate and dedicated Senior Frontend Developer (React) to join our team in Lviv/Kyiv!

About the job:
You will be part of the PlayMatrix business unit in EveryMatrix. PlayMatrix creates state-of-the-art live casino games from scratch.

Project description: 
Roulette and Blackjack (and many-may more other games) with real dealers streamed to players all across the world with lowest latency and highest quality. You will be working in the Frontend team mainly with React, Redux, Redux-toolkit using HTTP2 and WebSockets APIs as the transfer protocols between the server and the client. 

What You'll get to do:

• Develop new user interfaces for live casino games and internal informational systems.
• Build reusable code and libraries for future use.
• Ensure the technical feasibility of UI/UX designs.
• Optimize applications for maximum speed and scalability.
• Collaborate with other team members and stakeholders on all parts of the stack.
• Create technical documentation and well-commented code.
• Minimize and maintain 3rd party library dependencies.

What You need to know:

• 5+ years engineering experience.
• Proficiency with JavaScript, TypeScript, ReactJS, Redux-toolkit, Redux, Websockets and HTML/CSS.
• Experience in video streaming and WebRTC.
• Experience working with Figma.
• Strong empathy for user experience.
• Experience in creating SVG programmatically will be a plus.
• A keen aptitude for sharp feedback and structured communication.
• Desire to work on building things the "right" way.
• Independence and self-motivation.

Here's what we offer:

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference! 
 

Inforce is a Software Development Company delivering high-quality IT solutions for international clients. We are looking for a Front End Developer with strong Shopify and vanilla JavaScript expertise.

Requirements:

• Professional front-end development experience
• Vanilla JavaScript expertise — building complex UI logic without heavy frameworks
• Expert in Shopify Liquid, theme & template development
• Experience with Shopify Checkout UI Extensions and App Blocks
• Knowledge of reusable, modular UI component design (Web Components or similar)
• Proficiency with modern CSS, preprocessors, Tailwind CSS
• Understanding of browser APIs, state management, and performance profiling
• Comfortable working independently in a remote, sprint-based environment
  
  Responsibilities:
• Build and maintain Shopify front-end solutions
• Develop themes, Checkout UI Extensions, and App Blocks
• Design reusable modular UI components
• Optimize performance and maintainability
• Collaborate with the team to follow best practices
  
  We offer:
• Competitive salary
• Challenging Shopify projects
• Career growth opportunities
• Paid sick leave & vacation
• Friendly team and flexible format

• Support for professional development
   

  Required language:
  English — B2 (Upper-Intermediate)

   

Про Компанію

OKKO — лідер паливного ринку та одна з найбільших компаній України з потужною цифровою екосистемою, що охоплює мережу АЗК, роздріб, B2B-напрямок, логістику, фінансові сервіси та масштабну програму лояльності FISHKA.
Компанія знаходиться в активній фазі ІТ-трансформації та впроваджує сучасні підходи до розробки, архітектури та delivery.

Про Роль

Ми шукаємо Middle/Senior Frontend Developer (React.js) з практичним досвідом комерційної розробки.
Роль передбачає активну участь у створенні фронтенд частини високонавантажених систем, роботу з мікросервісами та API у тісній співпраці з Tech Lead та Solution Architect.

Ваша Місія

Розробляти надійні, масштабовані та підтримувані фронтенд рішення, дотримуючись сучасних стандартів якості коду та архітектури, які напряму підтримують бізнес-процеси OKKO.

Ключові Обов’язки

Розробка

• Розробка та підтримка frontend-додатків на React.js;
• Реалізація SPA з використанням сучасних підходів та бібліотек екосистеми React;
• Інтеграція frontend з backend через REST API;
• Участь у проєктуванні та розвитку frontend-архітектури (component-based, state management);
• Оптимізація продуктивності та UX веб-додатків.

Якість коду

• Дотримання принципів Clean Code, DRY, KISS, SOLID (на рівні frontend);
• Написання покриття коду Unit та Integration тестами;
• Участь у Code Review та впровадженні best practices команди;
• Підтримка єдиного стилю коду (linters, форматування).

Надійність та продуктивність

• Забезпечення стабільної роботи frontend-додатків;
• Оптимізація рендерингу, роботи зі станом та мережевих запитів;
• Аналіз і усунення багів, проблем продуктивності та UX;
• Робота з великими та високонавантаженими інтерфейсами.

Взаємодія

• Робота в кросфункціональній команді з Backend-розробниками, Tech Lead, UX/UI дизайнерами, QA та Business Analyst;
• Участь у плануванні задач, технічних обговореннях та Refinement-сесіях;
• Участь у прийнятті архітектурних рішень frontend-напрямку.

Наш Ідеальний Кандидат Має

Обов’язкові вимоги

• Досвід комерційної розробки frontend-додатків на React.js - від 3 років;
• Впевнене знання JavaScript (ES13+) / TypeScript;
• Глибоке розуміння принципів роботи React (hooks, lifecycle, virtual DOM);
• Досвід роботи зі state management (Redux, Zustand, MobX або аналоги);
• Розуміння принципів та досвід інтеграції RESTfull API;
• Розуміння безпекових принципів, авторизація, аутентифікація, види Access Control;
• Досвід роботи з Postman;
• Досвід роботи з адаптивною версткою (HTML5, CSS3, Flexbox, Grid).

Буде перевагою

• Вміння писати E2E, Unit, Integration та Performance тести;
• Досвід оптимізації продуктивності frontend-додатків;
• Досвід роботи з CI/CD для frontend;
• Розуміння основ backend-архітектури та взаємодії сервісів.

Особисті якості

• Відповідальність за якість власного коду;
• Вміння працювати в команді та приймати зворотний зв’язок;
• Орієнтація на стабільність та довгострокову підтримуваність рішень.

Ми Пропонуємо

• Роботу над масштабними RetailTech / FinTech-проєктами;
• Стабільне середовище з фокусом на якість, а не “швидкі рішення”;
• Можливість професійного росту (Senior / Tech Lead / Architect);
• Роботу в сильній інженерній команді;
• Конкурентну заробітну плату та соціальний пакет.