Jobs JavaScript / Front-End

Phoenix Games is a next-generation technology company building innovative iGaming and Web3 products for a global audience. We combine modern web technologies, blockchain infrastructure, AI-powered solutions, and digital assets to create engaging gaming experiences used by players worldwide.

We're growing our engineering team and are looking for a talented Senior React Developer who enjoys building scalable products, solving complex technical challenges, and working in a fast-moving international environment.

What You'll Do

• Develop modern, responsive web applications using React and TypeScript.
• Build reusable UI components and scalable front-end architecture.
• Collaborate closely with Product Managers, UI/UX Designers, and Backend Engineers.
• Integrate REST APIs and WebSocket services.
• Optimize application performance and improve user experience.
• Participate in code reviews and technical discussions.
• Contribute to architectural decisions and engineering best practices.
• Help shape the future of our gaming platform.

Tech Stack

• React 18+
• TypeScript
• Next.js
• Redux Toolkit / Zustand
• React Query / TanStack Query
• Tailwind CSS
• Vite
• WebSockets
• REST API
• Git
• Docker
• CI/CD

Requirements

• 3+ years of commercial experience with React.
• Strong knowledge of TypeScript.
• Experience with modern state management libraries.
• Solid understanding of JavaScript (ES6+).
• Experience with REST APIs.
• Understanding of responsive design and cross-browser compatibility.
• Experience with performance optimization.
• Familiarity with Git workflows.
• Upper-Intermediate English or higher.

Nice to Have

• Experience with Next.js.
• Familiarity with blockchain wallets and Web3 integrations.
• Experience working in product companies.
• Knowledge of AI-powered frontend tools.

What We Offer

Fully Remote — work from anywhere in Europe.

Long-term B2B cooperation with a competitive compensation package.

Performance and annual salary reviews.

Individual bonus program based on company and personal results.

Annual performance bonus.

Paid vacation and paid public holidays.

Paid sick leave.

Modern equipment budget or laptop provided.

Home office allowance.

Annual learning & development budget for courses, conferences and certifications.

English language classes.

Private health insurance.

Mental health support program.

Wellbeing & sports compensation.

Team buildings, online events and international company retreats.

Flexible working hours with a healthy work-life balance.

Opportunity to work with cutting-edge technologies including AI, Web3 and blockchain.

International team with a startup mindset and product culture.

Real career growth opportunities as the company scales globally.

Why Join Phoenix Games?

We're building products from scratch using modern technologies, without legacy code or bureaucracy. Your ideas will matter, your code will reach thousands of users, and you'll work alongside experienced engineers who value ownership, quality, and innovation.

If you're passionate about React, enjoy solving challenging problems, and want to build the future of online gaming—we'd love to meet you.

We are looking for a  Senior Frontend Engineer – Design System / Web Components (StencilJS) for a large German product company. It’s built with Web Components on StencilJS and used by several product teams across different frameworks. The work covers the library’s architecture and packaging, server-side rendering, and AI-assisted development processes. You need to understand how each change affects the whole product and the teams that integrate the library.

Details: 
📍 Remote, with about 1 onsite day a month in Stuttgart, Germany

📄 B2B contract / freelance

Start: ASAP 
English: Fluent 

Tech stack: StencilJS 4, TypeScript, HTML/TSX, JSS, Tailwind CSS · Angular, React, Next.js, Vue · npm workspaces, Rollup, Vite, Webpack · Vitest, Playwright, axe-core · Agent Skills, MCP, GitHub Copilot · GitHub Actions, AWS CloudFront

What you’ll do

• Refactor and modernise the component library (StencilJS 4, TypeScript)
• Replace CDN-based delivery with bundler-friendly packages, keeping breaking changes to a minimum and providing clear migration paths
• Support React Server Components and streaming in Next.js (App Router), plus SSR for Vue within Astro
• Solve Web Components / Shadow DOM boundary issues, Declarative Shadow DOM and hydration
• Develop agent skills, MCP servers and a shared source of component metadata, examples and docs that generates documentation, types and AI tooling
• Build agentic workflows for code reviews, changelogs, dependency updates and documentation
• Ensure accessibility and quality, and support the integrating teams in writing and by phone

Must-have

• Several years building design systems or component libraries
• Strong hands-on Web Components / StencilJS, Shadow DOM, Declarative Shadow DOM, Constructable Stylesheets
• Strong TypeScript, semantic HTML, modern CSS and modern browser APIs
• Solid React and Next.js: App Router, Server Components, streaming, hydration
• Library packaging: ESM-only, exports maps, tree-shaking, Rollup, Vite, Webpack
• npm workspaces, monorepos, semantic versioning, deprecations and migration strategies
• AI-assisted development workflows: MCP, agent skills, prompt and context engineering
• Accessibility to WCAG 2.2 AA: keyboard, ARIA, forced colours, screen-reader testing
• TDD, with unit, E2E, visual-regression and accessibility tests; CI/CD with GitHub Actions
• Agile, end-to-end product lifecycle; independent, long-term product mindset
• Good written and spoken English

⚠️ Experience building only React/Next.js applications isn’t enough for this role. Hands-on StencilJS / Web Components work is essential.

Nice to have

• Angular and Vue
• German

We are an IT company looking for proactive, communicative engineers to join a product team on a long-term basis. We focus on results and care about the growth of our people.

Currently, we are looking for a Front-end Engineer. If you enjoy building rich, data-driven interfaces and want to shape a product from an early stage, join us.

About the project: A cloud-based, AI-driven analytics product for financial data. The product is at the alpha stage. You will build its interactive user interface together with the product team.

Required skill set:

• 5+ years of commercial experience with React.
• Strong knowledge of TypeScript.
• Experience building complex, data-heavy interfaces.
• Experience integrating with RESTful APIs.
• Good understanding of state management and component architecture.

Will be a plus:

• Experience with data visualisation libraries.
• Testing experience (Jest, React Testing Library).
• Experience in FinTech or B2B SaaS.
• Experience with AI-assisted development tools (Claude Code, Copilot, etc.).

Responsibilities:

• Development of the application’s interactive user interface.
• Building screens for working with analytical data.
• Integration with back-end APIs.
• Code reviews and ensuring code quality.
• Collaboration with the product team, designers and back-end engineers.
• Contributing to front-end architecture decisions.

TenThousand is a Ukrainian engineering company that has been developing solutions for Fintech and Retail clients in the US, Israel, and Europe since 2021. Our client base includes banks, fintech companies, and logistics services. We tackle complex technical challenges—such as high-risk projects or those involving legacy architecture—and transform them into reliable, scalable, and stable systems. We work on real commercial projects, applying a product-oriented approach and adhering to high standards of quality and security.

We run our own free 3-month academy and are currently looking to add 5 developers to our team for a remote role.

What you’ll be doing:
• Developing features for real commercial projects for clients in the US, Israel, and Europe
• Working in a team under the guidance of a lead from day one
• Developing your technical skills in an environment that upholds real product standards

Requirements:
• Solid knowledge of React, JavaScript, and TypeScript
• Willingness to learn quickly and adopt new approaches
• Responsibility, initiative, and self-organization
• English proficiency at B1+ level (for working with documentation and basic communication)

What we offer:
• Involvement in real projects from the very first weeks
• Free 3-month internal academy and mentorship
• Systematic professional development and career growth within the company
• Remote work format | Office-based work

Selection stages:
1 HR interview — introduction, motivation, soft skills (20–30 min)
2 Technical assignment or interview with the lead
3 Discussion with the project lead → job offer

About the Role

We are looking for a 3D Web Engineer to join an engineering-driven project focused on inspection and deep analysis of massive infrastructure structures. The platform processes large-scale, high-precision 3D data and provides real-time visualization and analytics in the browser.
 

In this role, you will lead advanced 3D rendering initiatives, work closely with domain experts, and integrate next-generation graphics pipelines such as WebGPU. The production platform relies heavily on LuciadRIA, making direct experience with this framework essential.

⚫️ Responsibilities:

✦ Develop and optimize web-based 3D visualization features within our platform

✦ Work with and extend our LuciadRIA-based 3D engine

✦ Design and implement high-performance rendering pipelines using WebGPU

✦ Handle large-scale datasets (e.g. photogrammetry, point clouds, meshes)

✦ Improve rendering performance, memory usage, and responsiveness

✦ Collaborate with frontend and backend developers (Angular, Node.js, TypeScript)

✦ Contribute to architectural decisions and guide less experienced developers

⚫️ Must-Have Skills & Experience:
✦ Hands-on production experience with LuciadRIA (mandatory)

✦ Strong experience in web-based 3D visualization using WebGPU

✦ Solid understanding of 3D fundamentals

✦ Proven experience with real-time 3D rendering in the browser

✦ Strong JavaScript / TypeScript skills

✦ Experience optimizing performance in large or complex 3D scenes
✦ English - Strong Upper-Intermediate\Advanced

⚫️ Tech Stack:
✦ 3D Engine: LuciadRIA

✦ Frontend: TypeScript, Angular

✦ Backend: Node.js

✦ Infrastructure: GitLab, PostgreSQL, S3-compatible storage

⚫️ Preferred Skills:
✦ Backend experience (Node.js) and data integration

✦ Experience with geospatial 3D systems or large coordinate spaces

✦ Experience with photogrammetry, point clouds, or mesh processing pipelines

✦ Experience with Gaussian Splatting or similar rendering techniques
 

• Project Description:

  We are seeking a highly skilled Regular Web Graphics Developer to join our team in the oil and gas industry. The ideal candidate will have extensive experience in developing advanced web-based visualizations and a deep understanding of industry standards. This role requires proficiency in WebGL and Three.js, along with a strong grasp of the graphics rendering pipeline. Experience with Unity or VR is a plus. Additionally, the candidate should possess general cloud development skills and backend expertise, including microservices architecture and experience with AWS and Azure.

• Responsibilities:

  • Design, develop, and maintain interactive web-based visualization tools for oil and gas data.
  • Implement advanced graphics rendering techniques using Angular, TypeScript, Three.js
  • Collaborate with geologists, engineers, and other stakeholders to understand visualization requirements and deliver effective solutions.
  • Ensure visualizations are optimized for performance and scalability.
  • Stay up-to-date with industry standards and best practices in web visualization and graphics rendering.
  • Integrate visualization tools with existing data management systems and workflows.
  • Develop and maintain backend services using microservices architecture.
  • Utilize cloud platforms such as AWS and Azure for deployment and management of visualization tools.
  • Provide technical guidance and mentorship to junior developers.

• Mandatory Skills Description:

  • 3+ years in Graphics development, with a strong emphasis on web-based Visualization applications and tools.
  • Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
  • Strong proficiency in Angular, TypeScript and WebGL, Three.js
  • In-depth knowledge of the graphics rendering pipeline.
  • Experience with backend development and microservices architecture.
  • Proficiency in cloud platforms such as AWS or Azure.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication and collaboration skills.
  • Ability to work independently and as part of a team.

• Nice-to-Have Skills Description:

  • Proven experience in web-based visualization development, particularly in the oil and gas industry.
  • Familiarity with AI

• Languages:
  • English: B2 Upper Intermediate

About the Product

You'll join the team behind an AI size and fit product for fashion brands. Its size advisor combines custom algorithms, product data and shopper preferences to recommend the right size, so retailers sell more and deal with fewer returns. Well-known luxury fashion brands use it on their online stores, and merchants of every size install it through our Shopify app. We're now building virtual try-on as well.

We're a small team spread across the UK, Italy, Germany and Ukraine, so you'll work directly with our CTO, our designer and our product lead.

The Role

We're looking for a strong junior frontend developer who's ready to take a task from ticket to release. Most of your time will go into our Shopify app, which merchants use inside their Shopify admin to set up size charts and configure the size advisor. You'll also work on requests from our brand clients for the size advisor widget that runs on their product pages, and you may help with virtual try-on as it develops.

You'll plan your work in Linear, open pull requests that a teammate reviews, and use AI coding tools every day. We use Claude Code a lot, and we expect you to understand every line it writes for you.

What You'll Do

• Build new features in our Shopify app, such as size chart creation and editing, merchant onboarding, recommendation settings and dashboards.
• Fix bugs and work through the backlog, keeping the app in line with Shopify's Polaris design system and Built for Shopify guidelines.
• Work on our theme app extension and web pixel, the parts of the app that run on merchants' storefronts.
• Deliver customisations, fixes and small features on the size advisor widget for our brand clients.
• Turn Figma designs into responsive, accessible interfaces that work across browsers.
• Write tests for the code you change, using Vitest and Playwright.
• Take part in code reviews, both giving and receiving feedback.

What We're Looking For

• At least a year of commercial experience building React applications, or shipped projects that show the same level.
• Working knowledge of TypeScript.
• Solid JavaScript, HTML and CSS/SCSS, including responsive layouts and cross-browser issues.
• Experience working with REST APIs and handling async data, including loading and error states.
• Basic GraphQL: you can read and write queries (Shopify's Admin API is GraphQL).
• Comfortable with Git, pull requests and code review.
• Good spoken and written English. It's our working language across four countries.
• Hands-on experience with AI coding assistants, and the judgement to check what they produce.
• Working hours that overlap with UK and Central European time. Our daily stand-up is at 9.30am CET (8.30am UK time).

Nice to Have

• Experience building Shopify apps: Remix or React Router 7 (Shopify's current app template), App Bridge, Shopify CLI and theme app extensions.
• Polaris, either Polaris React or the newer Polaris web components.
• Node.js on the server, plus basic Prisma and PostgreSQL.
• Redux Toolkit, Vite and Storybook.
• three.js or React Three Fiber.
• Accessibility (WCAG) and internationalisation (i18n).
• An interest in fashion and e-commerce.

Our Tech Stack

• Shopify app: React, TypeScript, Remix, Polaris, App Bridge, Prisma, PostgreSQL, Vite, pnpm, Biome
• Size advisor widget: React, TypeScript, Redux Toolkit, SCSS, Vite, three.js and React Three Fiber, plus our own component library in Storybook
• Testing: Vitest, Testing Library, Playwright
• Tools: GitHub, Linear, Figma, Claude Code

What We Offer

• Visible work: what you build runs on the online stores of some of the best-known names in fashion.
• Mentoring from our CTO, and a careful review on every pull request.
• A team that releases to production several times a week, so you see your work live within days.

Our Values

• Integrity: We respect ourselves and others, and we do the right thing because it's the right thing to do.
• Own it: We don't pass the buck. The team depends on you and trusts you, and we're collectively accountable for the good outcomes as well as the bad.
• Execution: We want to create something worth creating, so we execute, monitor, learn, adjust and repeat. Iteration is at the heart of everything we do.
• Intellectual rigour: We're passionate about what we do. We encourage rigorous debate and make decisions based on logic, data and facts.
• Collaboration: We value the team over the individual. No one should be afraid to ask for help or unwilling to help others, and that's how we build the highest-quality systems.

Hiring Process

1. A 30-minute introduction call.
2. A technical interview of about an hour with our CTO, including live coding in React and TypeScript.
3. A call with the wider team.
4. Offer.

How to Apply

Apply here on Djinni with your CV and a link to your GitHub profile or something you've built.

We welcome applications from everyone, whatever their background. If you need any adjustments during the hiring process, let us know.

We are building a revolutionary AI-based image and video processing platform and are looking for a Solutions Engineer to help expand our customer base through your technical expertise. We are open to candidates who can contribute significantly to developing our solutions and improving the customer experience.

​

Role Overview
​The responsibilities of a Solutions Engineer include sharing expertise on the product and its integration—specifically focusing on front-end understanding and a strong overall grasp of web technologies. You will use your analytical and interpersonal skills to guide our clients and maximize the value they gain from using our technology.
 

​The ideal candidate should have excellent communication and interpersonal skills, as well as the ability to meet KPIs and deadlines, demonstrating strong analytical abilities.

​Key Responsibilities

• Be the Product Expert: Act as the product expert and trusted advisor that clients can turn to for guidance on maximizing value from our technology.
• Expand Technical Expertise: Gain experience in front-end and back-end development, web optimization, performance best practices, AI/ML, cloud computing, media compression, and CDN.
• Support & Troubleshoot: Support customers’ technical queries, solve integration issues, and demonstrate the possibilities of the technology.
• Optimize E-commerce Performance: Help clients identify and troubleshoot storefront performance issues related to product images, videos, frontend rendering, CDN, and media delivery.
• Onboard Customers: Manage the technical onboarding of new customers and translate their desired outcomes into an implementation plan that will provide value.
• Define Requirements: Define new technical requirements for integration and prioritize project timelines.
• Cross-functional Collaboration: Ensure all customer requests and issues are handled promptly, working in collaboration with relevant teams including Customer Success, R&D, Sales, and Marketing.
• Quality Assurance: Utilize QA practices to ensure high-quality integrations

Requirements

• Language Proficiency: Strictly C1-C2 English level required.

  Candidates at an Upper-Intermediate (B1-B2) level will not be considered. Exceptional written and verbal presentation skills are a must.

• Working Hours: High flexibility and ability to operate within the US time zone.
   

​Technical Skills:

• 5+ years of experience as a Solutions Engineer or Front-End professional within a global, fast-paced environment.
• Experience with Full-Stack technologies (e.g., Node.js, React, Angular).
• Hands-on experience with web and cloud technologies.
• Experience with basic debugging tools (e.g., Chrome DevTools).
• E-commerce & Web Performance: Hands-on experience with e-commerce websites or storefronts and practical knowledge of Web Performance Optimization (WPO), including Core Web Vitals (LCP, INP, CLS), Lighthouse, Chrome DevTools, and performance troubleshooting. Candidates should be able to interpret performance metrics, identify bottlenecks, and explain how optimization efforts affect real-world user experience.
• Image Optimization & Media Delivery: Practical experience with image optimization, responsive images, image formats and compression, CDN, and caching strategies in production.
• Performance Monitoring: Familiarity with Real User Monitoring (RUM), Core Web Vitals monitoring, and tools for tracking website performance in production.
• Problem Solving: Ability to effectively assess and quickly resolve technical issues while working with both technical and non-technical teams. High-level technical, project, and problem-solving skills.

• Mindset: Strong critical thinking and analytical skills with an entrepreneurial, proactive, and result-oriented mindset. Highly motivated, a fast learner, and open-minded.

   

Nice to Have​

• BS, BA, BEng degree or equivalent in Computer Science or a related field.
• ​Relevant certifications, courses, or experience in adjacent technologies.

We OFFER:

• ​A fast-paced, highly professional, international team environment with a flat structure and rapid decision-making.
• ​Competitive compensation packages commensurate with your background and product portfolio.
• ​Flexible, remote-first workflow optimized for seamless global alignment.
• Medical Insurance in Ukraine and a Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leave, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.

We’re looking for a senior-level React engineer to own critical frontend experiences, collaborate closely with product/design.

What you’ll do

• Design, build, and ship high-performance, responsive web UIs
• Partner with product managers, designers, and analysts to translate user needs into elegant product experiences
• Plan and execute short- and long-term roadmaps balancing user impact, technical quality, and delivery speed

• Raise the bar through code reviews, mentoring, and improvements to our tooling and processes

   

Must-have expertise

• Next.js (our web app is built with Next.js)
• Monorepos using Yarn Workspaces or Nx
• Tailwind CSS (our primary design system)
   

Technical requirements

• 5+ years of professional software development experience
• 5+ years with React and its ecosystem (e.g., Redux, React Router)
• Strong proficiency in JavaScript (ES6/ES7) and TypeScript
• Deep knowledge of HTML/CSS, responsive design, and accessibility (a11y) best practices
• Hands-on with modern build tooling and package managers (Vite, esbuild, Yarn)
• Experience with server-side rendering and Next.js, plus working knowledge of Node.js
• Comfortable with Git workflows and agile methodologies
• 3+ years working with major cloud providers (AWS/GCP/Azure)
• Storybook
   

Nice to have

• Experience with monorepo release management and internal package versioning
• Familiarity with performance profiling, Web Vitals, and SEO in Next.js
• E2E testing (Playwright/Cypress) and CI/CD pipelines
• Experience in fintech or data-heavy, real-time UIs

Agroplace — продуктова агротех-платформа, яка з'єднує виробника, дистриб'ютора й фермера навколо одного поля. Агроном відкриває карту, бачить свої ділянки й отримує програму захисту. Менеджер дистриб'ютора готує пропозицію під конкретне поле. Ми шукаємо Frontend-інженера, який зробить ці сценарії швидкими й зручними.

Що ви будете робити

• Будувати інтерфейси на карті: шари, межі ділянок, малювання й редагування полігонів, фільтри.
• Робити таблиці, графіки й форми для клієнтів, програм і комерційних пропозицій.
• Розвивати дизайн-систему та бібліотеку компонентів у Storybook.
• Робити інтерфейс AI-асистента, який показує поля, продукти й програми просто в чаті.
• Брати участь в обговоренні фіч разом із продуктом і дизайном.

Наш стек

Next.js 15, React 19, TypeScript, Tailwind CSS, Radix UI, TanStack Query і TanStack Table, Zustand, React Hook Form + Zod, Mapbox GL і Turf, Recharts, Socket.IO, Storybook.

Що для нас важливо

• Від 3 років комерційного досвіду з React і TypeScript.
• Досвід із Next.js (App Router, SSR).
• Уміння працювати з серверним станом і великими таблицями без втрати швидкості.
• Увага до деталей інтерфейсу й до того, як ним користуються люди.

Буде плюсом

• Досвід із Mapbox GL, Leaflet або іншими картографічними бібліотеками.
• Робота з геоданими (GeoJSON, полігони).
• Досвід зі Storybook і дизайн-системами.
• Досвід інтеграції LLM або чат-інтерфейсів.

Що ми пропонуємо

• $2500–3000, віддалена робота з будь-якого міста України, ФОП-контракт.
• Продукт, яким користуються агрономи й дистриб'ютори в пілотах — зворотний зв'язок приходить швидко.
• Невелика команда й короткий шлях від ідеї до користувача.
• Вплив на продукт: інженер бере участь в обговоренні фічі, а не лише отримує тікет.
• AI-інструменти в щоденній розробці.

Як проходить відбір

1. Відгук на Djinni з CV.
2. Коротка розмова про ваш досвід і про продукт.
3. Технічна зустріч на реальній задачі з продукту.
4. Рішення та пропозиція.

Про проєкт - Ми розробляємо десктопний застосунок для перегляду та аналізу КТ-досліджень для хірургів з АІ функціоналом. Шукаємо Strong Junior - Middle TypeScript Developer для розвитку продукту.

Обов'язки:

• Розробка нового функціоналу та підтримка існуючого
• Оптимізація продуктивності застосунку
• Code review
• Участь у технічному плануванні та оцінці задач
• Написання unit- та e2e-тестів
   

Вимоги:

• 2+ роки комерційного досвіду з TypeScript
• Досвід роботи з React
• Розуміння принципів побудови архітектури застосунків
• Досвід написання тестів (Vitest/Jest, Playwright або аналоги)
• Впевнене використання AI-інструментів у розробці (Claude Code, Codex)
• Git
• Наявність MacBook на Apple Silicon
   

Буде плюсом:

• Досвід з WebGL, Three.js, GLSL
• Знання лінійної алгебри та 3D-графіки
• Досвід з Electron
• Досвід з DICOM, Cornerstone3D, vtk.js
• Досвід у MedTech
   

Ми пропонуємо:

• Віддалену роботу
• Гнучкий графік
• Оплату в USD
   

Етапи відбору:

1. Перша співбесіда - знайомство 
2. Технічна співбесіда з СТО
3. Фінальна співбесіда з СЕО та СТО