Jobs JavaScript / Front-End

We're looking for a Senior Frontend Developer who thrives in the fast pace of mobile game development. You'll join a small, focused team and have a direct impact on features that millions of players will experience. You'll be responsible for building and shipping new UI systems, multiplayer frontend integration, and the creature breeding interface — all within Unity.

 Key Responsibilities

• Design and develop new frontend features in Unity (C#) including multiplayer lobby, matchmaking UI, and real-time competitive gameplay HUD.
• Build new features interface — including lineage visualization, character selection, and outcome previews.
• Collaborate with backend engineers to integrate various api over RPC/Rest/Socket connection for multiplayer sessions, leaderboards, and player profiles.
• Optimize UI performance for a wide range of Android and iOS devices, ensuring smooth framerates and minimal memory overhead.
• Maintain and improve the existing alpha UI codebase — refactoring as needed for scalability.
• Work with artists and designers to implement pixel-perfect, responsive UI layouts using Unity UI Toolkit or UGUI.
• Implement animations, transitions, and visual feedback loops that enhance the game feel and player engagement.
• Participate in code reviews, sprint planning, and design discussions as a senior team member.
• Help define frontend architecture standards and mentor junior developers as the team grows.

Required Skills & Experience

Must-Have

• 4+ years of frontend or UI development experience, with at least 2 years in Unity.
• Strong proficiency in C# and Unity's UI systems (UGUI and/or UI Toolkit).
• Experience shipping at least one mobile game title on iOS and/or Android.
• Solid understanding of multiplayer game architecture — client-server communication, state synchronization, latency handling.
• Proficiency integrating api over RPC/Rest/Socket connections within Unity projects.
• Experience with Unity's animation systems (Animator, DoTween, or similar) for UI transitions.
• Familiarity with AI related coding framework for supporting front-end development phase

• Ability to work independently, manage your own scope, and communicate progress clearly in a remote environment.

   

Nice-to-Have

• Experience building competitive, RPG-genre, or idle RPG game UIs.
• Familiarity with Nakama, Mirror, or Unity Netcode for GameObjects for multiplayer implementation.
• Experience with procedural or data-driven UI (e.g., dynamic leaderboards, generative creature stat cards).
• Knowledge of mobile-specific optimization — texture atlasing, UI draw call reduction, overdraw profiling.
• Background in RPG progression systems, gacha mechanics, or character UI.

• Experience with Unity Addressables for dynamic asset loading.

   

• What We Offer
• Competitive salary commensurate with senior experience.
• Remote-first work environment with flexible hours.
• Direct collaboration with the founding team — your work ships fast and matters.
• Creative ownership over frontend systems with room to define the architecture.
• A lean, no-bureaucracy team that moves quickly and avoids unnecessary meetings.

• Opportunity to grow into a Lead Frontend role as the team scales post-launch.

   

Department/Project Description

We develop a POS, plan management and reporting Car Wash solution that allows providing attended (employee) and unattended (customer) tunnel car washing service.

Designated team focuses on Payment and Subscription logic for POS platform

There are two labs:

- One in the USA
- One in Ukraine (Lviv)

Hardware Solution includes several points of sale(POS), different sensors, readers and cameras, payment terminals, servers, and automatic gates.

The solution supports both USA and Canadian markets. Ukrainian teams develop a PWA(web) application and a hybrid web application (.Net & Angular) that operates on hardware & cloud and supports full customer flow: from customer recognition or account creation to sale & directing their car to a tunnel, reporting, etc. All embedded development is on the client's side.

The client has huge plans for 2026 so you have a chance to become a part of the big success.

Requirements:

• Experience with Javascript, Typescript and Angular
• Basic understanding of software-oriented architecture, micro-services, etc
• Good analytical skills, debugging, and troubleshooting
• Intermediate English skills
• Good communication skills
• Teamwork
• Be proactive
• Will to work and learn

Would be plus experience in:

• OOP & Functional programming
• Unit tests engineering
   

Job Responsibilities

• Be ready to learn and develop on intense & complex project
• Cross-team communication and cooperation;
• Work in a dynamic Agile/Scrum-based environment;
• Work closely with the embedded team and customer integrations team to successfully bring the solution to production;
• Be a part of Globallogic team of successful professionals; 

For those who's interested in Hardcore:

• Performing requirements analysis, application development, product configuration, unit, and system testing, and production deployment within the framework of the infrastructure;

Flow

True SCRUM. Story points, Product owner, and Sprints include mandatory daily stand-ups, grooming, planning, demo, and retro sessions.

2-week sprints, releases strictly every 4 weeks, updates on demand.

Only agreed and paid overtime. Limited control from the Management team. Teams are fully self-manageable. No rushing or delivering work ASAP.

Limited communication and control from the client side.

We are seeking a talented Frontend Engineer with over 5 years of professional experience to join our dynamic team.

The role is based in the Kyiv, and we expect you to work fulltime in office.

You will be responsible for building sleek, responsive, and user-friendly interfaces to enable real-time control and monitoring of robotic swarms and sensor systems. Your work will directly contribute to the usability and efficiency of our cutting-edge robotics solutions.

What is your Day to Day Mission:

• Design, develop, and optimize frontend applications for controlling and visualizing robotic swarms and sensor data.
• Collaborate with backend engineers to integrate APIs and ensure seamless data flow between frontend and backend systems.
• Build intuitive, performant, and responsive user interfaces using modern frontend frameworks such as React or comparable web component frameworks.
• Work closely with UX/UI designers to translate designs into functional applications.
• Ensure code quality, maintainability, and scalability through clean coding practices and code reviews.
• Troubleshoot and optimize frontend performance for real-time applications.
   

What you bring to the team:
 

• Completed a technical university or a comparable background with a finished degree
• 5+ years of professional experience in frontend development
• Proficiency in TypeScript and web component frameworks
• Strong understanding of modern web development tools, concepts, and practices.
• Basic knowledge of backend systems and API integration.
• Experience with custom web based rendering engines
• Familiarity with RESTful APIs, WebSockets, and data visualization tools.
• Ability to write clean, efficient, and well-documented code.
• Excellent problem-solving skills and a passion for building user-friendly applications
• Communication in English is a matter of course for you.

Nice-to-Have:

• Experience with robotics, sensor data visualization, or real-time control systems.
• Knowledge of state management libraries (e.g., Redux, MobX) and frontend build tools.
• Familiarity with backend technologies such as Nodejs or similar.
• Understanding of testing frameworks and tools for front-end development.
   
• Why Quantum-Systems:

• We Stand with Ukraine!
• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold, and visionary.
• We push limits, think outside the box, and strive for technological excellence to shape the future of aerial data.
• We promise to be your runway for individual and professional growth.

Hello, future colleague!

At DreamPlay, we create pixel-perfect slot games powered by our own engine. We are reinventing the gambling experience by delivering unique, high-quality games to the market.
We are a team of professionals who value quality, ownership, transparency, and collaboration. We believe in a results-driven environment where everyone has the space to grow, contribute, and make an impact.

We are currently looking for a Lead Front-End Engineer to join our team.

In this role, you will lead the development of front-end solutions for our slot games, contribute to technical decisions, and help grow strong frontend engineering practices within the team.

If you are passionate about building high-quality gaming experiences and enjoy solving complex technical challenges, we would love to meet you.

Requirements:

Must have:

• Strong knowledge of JavaScript / React / Redux.
• Knowledge of PixiJS / SpineJS.
• Experience building complex frontend applications.
• Understanding of how graphics rendering works.
• Experience reviewing code and maintaining high engineering standards.
• Experience in iGaming or game development.

Would be helpful:

• Good understanding of graphics pipelines and rendering performance.

• TypeScript.

   

Key Responsibilities:

• Lead front-end development for slot games.
• Write, review, and maintain clean, scalable, and efficient code.
• Drive frontend architecture decisions.
• Mentor and support frontend developers in the team.
• Translate game designs, animations, and mechanics into high-quality interfaces.
• Ensure performance and stability across browsers and devices.
• Participate in solution design and architecture discussions.

• Improve frontend development standards and processes.

   

We Offer:

• Opportunity to work remotely.
• Flexible working hours — you choose when to start your day.
• Modern Mac equipment.
• Career growth within a team of iGaming professionals.
• Supportive, transparent team culture with minimal bureaucracy.
• Time-off policy that fits real life (paid vacation, sick leave, public holiday).
• Benefits for employees.

Client produces the best-selling iPad and iPhone app for pilots flying personal and business aircraft, corporate flight departments, and aircraft operators. Customers include individual pilots worldwide, Fortune 500 corporate flight departments, state and federal agencies, leading operators, the military, and leading aircraft OEMs. We have been in the App Store since its grand opening in July, 2008 and are consistently ranked in the top 50 grossing iPad apps in the App Store.

Requirements:

We are looking for candidates who demonstrate strong professional experience and commitment to best practices, code quality, and operational excellence.

Mandatory Skills:

• Mapping: Experience building web-based geospatial authoring and visualization tools
• Front-end Frameworks: Proficiency with both Angular and React
• Java: Extensive, current experience writing high-quality Java code
• Databases: Experience working with and optimizing relational and spatial databases (e.g., PostgreSQL, PostGIS)
• Python: Familiarity with Python for scripting or data processing
• AWS: Experience designing, deploying and operating services within Amazon Web Services
• Build Management: Proficient with Maven or other build management and dependency handling
• Application Monitoring & Debugging: Experience with monitoring tools and expert skills in debugging and troubleshooting production applications.

Highly Desired Skills:

• Spring Boot or Similar Web Frameworks: Experience building and deploying RESTful web services using Spring Boot or comparable modern frameworks
• Aviation Interest: A pilot-coder or someone with experience building solutions for the aviation domain is a significant plus
• Aviation Standards: Experience with any of the following: DO-200, ARINC-424, DO-272
• Teaming: Experience collaborating with globally distributed teams to bring solutions into production

For the world most global bank we are building the platform, which supports various information gathering and processing across the organization and providing access to this data

• Responsibilities:

  Comprehensive responsibility across all phases: requirements, development, deployment, and production support
  Including:
  - Write good and well-tested code
  - Support Build & deploy process
  - Evaluate and adopt new development tools, libraries and methods to improve quality
  - Perform peer code review of project codebase changes

• Mandatory Skills Description:

  - At least 5+ years of experience in React
  - At least 8+ years of experience in the industry of software development
  - Basic Angular knowledge

• Nice-to-Have Skills Description:

  - Experience in banking or financial proje

Start: as soon as possible
Duration: long-term
Workload: full-time
Location: any, EU 
English: B2

About the client:
Our client is a provider of Software as a Medical Device (SaMD) specializing in AI-driven lung cancer detection, diagnostics, and therapy for the US and European markets.
To support their rapid growth, we are currently seeking staff augmentation to accelerate their existing product roadmap.

Their Technology Stack & Environment:
Core Languages: Scala, Python, TypeScript
Cloud Infrastructure: Microsoft Azure
Domain Specializations: AI/ML, DICOM, and HL7 integration

Candidates with a strong med-tech background are preferred.
(Note: HL7 integration --> this is highly specific to med-tech)

The product company is looking for a Senior Frontend Engineer in Warsaw.
 

The company is a successful market leader, a live-streaming Platform with 450+ Million registered users.
Their B2C mobile platform allows millions of talented people worldwide to connect with their fans and monetize their talents.

Their live stream was founded in 2018 in the USA and is powered by 350+ global employees.

They offer: options, medical insurance (100% for employees and 75% for family members), lunch in the office, parking, multisport card/

Requirements: experience with React.js, Redux, Typescript.

Technology company founded in 2022, with a primary focus on creating iGaming products for the Western and Eastern European markets. Our team consists of young and progressive individuals from around the world, all working remotely.

Required Skills:

• Experience with React and Next.js
• JavaScript (ES6+)
• TypeScript
• Semantic, cross-browser, and adaptive markup, understanding of UI/UX
• Knowledge of SASS preprocessor (SCSS)
• Experience with Redux, Zustand
• Experience with RestAPI
• Familiarity with testing frameworks (Jest, Playwright, Cypress)
• Experience with Material UI
• Experience with Socket.io
• English B1+

Responsibilities:

• Develop new user-facing features using React and Next.js
• Build reusable components and front-end libraries for future use
• Optimize applications for maximum speed and scalability
• Collaborate with other team members and stakeholders
• Participate in code reviews and help maintain code quality and best practices

Nice to have:

• Knowledge and understanding of BEM-methodology
• Storybook knowledge
• Styled components, Redux toolkit, web3, react-web3, bignumber.js

• Experience in iGaming

   

What  offer:

• We offer a competitive salary that matches your skills and experience.
• Work from anywhere and keep a good work-life balance.
• We offer courses and training compensation to keep your skills sharp.
• Work with a supportive and creative team.

About the Project

We are looking for a skilled Middle / Senior Front-End Developer to join an international travel domain project. The engagement is organized in an outstaff format, meaning you will work directly with the client’s team and participate in their development processes.

Our client is a Greece-based company, and you will collaborate closely with their international team, contributing to the development and improvement of modern web solutions in the travel industry. The project duration starts from 6 months with potential extension to several years, offering long-term cooperation opportunities.

Responsibilities

• Develop and maintain modern front-end applications using Angular.
• Collaborate directly with the client’s international team and stakeholders.
• Implement scalable, maintainable, and high-performance UI solutions.
• Build and manage reactive forms and state management solutions.
• Work with component libraries such as PrimeNG and Angular Material.
• Apply best practices for testing, code quality, and performance optimization.
• Participate in technical discussions, architecture decisions, and code reviews.
• Ensure high-quality communication and collaboration with distributed teams.

Requirements

• 6+ years of relevant front-end development experience.
• Strong experience with Angular (versions 16–21).
• Experience with Nx monorepo architecture.
• Solid knowledge of RxJS, Reactive Forms, and Signals.
• Understanding of Signal Forms (basic level).
• Experience with state management approaches in Angular applications.
• Experience with PrimeNG and Angular Material.
• Practical experience with testing frameworks and practices.
• English level: B2–C1 (both written and spoken).
• Proven experience working directly with international customers.
• Strong communication skills and well-developed soft skills.

Tech Stack

• Angular (16–21)
• Nx
• RxJS
• Reactive Forms
• Signals
• PrimeNG
• Angular Material
• Signal Forms (basic understanding)
• State Management
• Testing

We are delighted to provide you with the following benefits:

• Opportunities for growth and development within the project
• Flexibility in scheduling
• Option to work remotely or in the office
• Stable employment
• Medical insurance coverage
• Legal assistance
• Paid time off for vacation and sick leave

24PLAY is a product company from Ukraine that has been developing and publishing mobile games since 2019. We are a team of professionals who have launched dozens of popular games and gained over 100 million satisfied players worldwide. Our games include Zombiepunk, Bliezkrieg Assault, Street Dude, and more.

As a Diia City resident, we offer employee reservation starting from the first day of employment.
 

We are currently looking for a Playable Ads Developer to share our core company values:

• Creativity: We actively encourage and embrace each other’s ideas, transforming them into reality through collaboration and innovative thinking.
• Integrity: We commit to providing honest feedback and realistically assessing situations, fostering a culture of trust and transparency.
• Productivity: We strive to optimize our workflows to achieve the best possible results in the shortest timeframe, ensuring efficiency and effectiveness in our operations.
• Uncompromising Quality: Our commitment to excellence drives us to prioritize the quality of our work above all else, ensuring that we consistently deliver outstanding results.
• Healthy Lifestyle: We advocate for a healthy lifestyle and stand against harmful habits, promoting well-being and balance within our team.
   

We are looking for a professional for the role that requires:

• Full-time job;
• Office-based in Kyiv.

Main responsibilities:

• Create 2D and 3D playable ads and creatives to promote mobile games
• Develop gameplay mechanics, game logic, animations, and visual effects
  
  Nice to have:
• Experience working with MRAID and understanding of ad network technical requirements for playables
• Experience creating games on any technology/platform (Unity, Flash, etc.)
  
  Our ideal candidate:
• 0,5+ years of experience working with JavaScript
• Experience building web applications or games using 3D graphics libraries (Three.js, Babylon.js, etc.) or experience with 2D JavaScript libraries such as PixiJS or similar
• Experience with JavaScript physics libraries (Ammo.js, Cannon.js, or similar)
• Solid understanding of 2D/3D math (vectors, matrices, dot/cross product)

Why join our team?

• Fully Legal: Official employment in full compliance with Ukrainian labor legislation, including paid vacation (24 days) and sick leave (unlimited).
• Professional Team: A high-performing group of skilled individuals committed to excellence.
• No Overtime: We prioritize a healthy work-life balance, with no overtime required.
• Stable Payments: No payment delays since the foundation of the company.
• Bonus System: A unique reward system designed to motivate employees by aligning their performance with the company’s financial goals.
• Professional Development: Access to mentorship programs and our internal library for continuous growth.
• Events: Enjoy board games, masterclasses, corporate events, sports activities, and free English classes.
• Comfortable Workspace: A modern office in Kyiv featuring a spacious lounge, fully-equipped kitchen, sports zone, cinema, and complimentary spa facilities for employees.
• 35-Hour Work Week: Reduced working hours as a benefit for experienced employees.

Our client is a leading UK insurtech company offering an innovative pay‑by‑mile car insurance product built on a modern cloud platform and connected‑car technology. With a strong market presence and tens of thousands of active users, the company is recognised as a key player in the usage‑based insurance segment.
We are assembling a team of Full‑stack and DevOps engineers to support the platform during its phase‑out period. The project involves maintaining platform stability, delivering essential updates, and ensuring a seamless customer experience.

As part of the GlobalLogic team, you will grow, be challenged, and expand your skill set working alongside highly experienced and talented people.

If this sounds like an exciting opportunity for you, send over your CV!

Requirements

• Strong experience with TypeScript and React 
• Solid experience working with AWS
• Familiarity with Serverless Architecture, including hands-on or working knowledge of services such as AWS Lambda, AWS DynamoDB, Amazon RDS with PostgreSQL, Amazon ECS, AWS Step Functions
• Understanding of building and integrating APIs and cloud-based services.
• Experience working with distributed or cloud-native applications in an AWS environment.
• Ability to collaborate effectively in cross-functional engineering teams and contribute to scalable, maintainable system design.
• Good level of English

Job responsibilities

• Develop and implement features required to support the business exit process.
• Provide ongoing maintenance, including bug fixes and issue remediation, to ensure stable service for customers during the transition period.
• Support and maintain release pipelines, ensuring timely delivery of fixes and updates.
• Assist in maintaining system stability and performance while customers continue to use the platform.
• Potentially support the migration of the ByMiles back book to a long-term platform once the final customers have transitioned off the service.
• Collaborate with cross-functional teams to ensure smooth delivery of updates and minimal disruption to customers during the transition.

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

Requirements:

• 1+ years of experience in development
• Strong knowledge of Javascript and TypeScript
• Strong knowledge of Angular
• Strong analytical and problem-solving skills
• Experience working with RxJS ,NgRx ,signals, and new angular syntax template
• Confident AI prompting, understanding of LLM principles (Context window, RAG, System prompts)
• Experience working with AI coding assistants (Cursor, Claude Code, GitHub Copilot)
• Good understanding of asynchronous and reactive programming
• Confident working with the Git version control system
• Understanding of GraphQL
• Intermediate level of English

Would be a plus:

• Experience working with React
• Experience working with Websockets
• Experience building large-scale SaaS platforms supporting millions of users.

Responsibilities:

• Build features and systems with attention to detail and performance.
• Own end-to-end development, from conception to production.
• Engineer not only solutions but also tools to understand the problem.
• Work closely with cross-functional stakeholders to deliver a world-class product.
• Identify and implement improvements to our existing systems.

About the project:

Project management platform. With the help of own API, it’s possible to do multiple integrations with communication, sales, analytics and other applications that are used by co-workers on a daily basis.

We are looking for a frontend engineer to improve the beautifully crafted product that helps millions of people to enjoy their remote work! You will be responsible to deliver production-ready functionality in a cross-functional team and will be able to reach millions of people with your best effort and working time as part of a multinational team of highly skilled developers.

• 1+ years of experience in development
• Strong knowledge of Javascript and TypeScript
• Strong knowledge of Angular
• Strong analytical and problem-solving skills
• Experience working with RxJS ,NgRx ,signals, and new angular syntax template
• Confident AI prompting, understanding of LLM principles (Context window, RAG, System prompts)
• Experience working with AI coding assistants (Cursor, Claude Code, GitHub Copilot)
• Good understanding of asynchronous and reactive programming
• Confident working with the Git version control system
• Understanding of GraphQL
• Intermediate level of English

Would be a plus:

• Experience working with React
• Experience working with Websockets
• Experience building large-scale SaaS platforms supporting millions of users.

Responsibilities:

• Build features and systems with attention to detail and performance.
• Own end-to-end development, from conception to production.
• Engineer not only solutions but also tools to understand the problem.
• Work closely with cross-functional stakeholders to deliver a world-class product.
• Identify and implement improvements to our existing systems.

About the project:

Project management platform. With the help of own API, it’s possible to do multiple integrations with communication, sales, analytics and other applications that are used by co-workers on a daily basis.

We are looking for a frontend engineer to improve the beautifully crafted product that helps millions of people to enjoy their remote work! You will be responsible to deliver production-ready functionality in a cross-functional team and will be able to reach millions of people with your best effort and working time as part of a multinational team of highly skilled developers.