Jobs

At InsulaLabs, we build long-term partnerships with top-tier clients, create conditions for growth, and truly care about our people.

With over 200+ professionals across design, development, QA, PM, BA/PO, and 2D art, we’re a team that grows together — and we’re just getting started 🚀

We’re looking for a Frontend Developer — Landing Pages who is passionate about building modern, fast, and beautiful interfaces. Here, you’ll do more than just write code — you’ll influence project quality, share ideas, and grow within a team that values people and their impact.

💡 Why You’ll Love Working With Us

• Projects where you can shape the outcome and bring your vision to life.
• A culture where your ideas matter — from improving markup to redefining workflows.
• Real opportunities for professional growth and mentorship.
• An open, trust-based environment with transparent communication.
• A vibrant internal culture: book club 📚, game nights 🎲, internal meetups, and micro-events.
• A team that genuinely supports and cheers for each other ❤️

⚙️ Must-Have Skills

• JavaScript ES6+ & TypeScript
• React 18+ or Vue.js 2.x (both preferred)
• Astro (main JAMstack framework)
• HTML5 / CSS3 / SCSS / Sass
• Responsive Design
• Vite & Webpack 5
• Nx (monorepo management)
• Git, GitLab, Jenkins

🌟 Nice to Have

• Rive animations
• Jest, Playwright, Testing Library
• ESLint / Prettier, Husky
• Node.js, Nginx

🧩 Experience

• 3+ years in frontend development
• Proven landing page experience
• Strong understanding of responsive and cross-browser design
• Team collaboration and code review experience

🚀 Preferred

• Experience with monorepo projects
• Building or maintaining UI Kit systems
• Working with i18n (multilingual projects)
• Performance optimization and web best practices
• Rive animations and interactive UI elements

🎁 Our Benefits

• Fully remote work format 🌍
• Medical insurance 🏥
• Learning & Development support 📚
• Compensation for psychologist sessions and hobbies 🧘‍♀️
• Healthcare & Sport support 🏋️‍♂️
• Workspace setup compensation 💻
• Blackout support — compensation for power stations or coworking spaces 🔋

We are looking for a Software Engineer (Three.js) to join our team! 

Requirements: 
– 2-3 years of hands-on experience in Three.js development.
– Strong Understanding of Three.js Concepts.
– Strong proficiency in JavaScript/TypeScript and front-end frameworks like Angular.
– Solid understanding of 3D graphics concepts (geometry, materials, lighting, shaders, camera systems).
– Understanding of responsive web design and cross-browser compatibility.
– Proficient understanding of web markup, including html5 and css3.
– Strong problem-solving, debugging skills and attention to performance.
– Must be able to independently design code and test major features, as well as work jointly with other team members to deliver complex changes.
– Excellent communication and interpersonal skills. 

Responsibilities: 
– Develop and maintain 3D web applications using Three.js and related technologies.

– Translate creative concepts, mockups, and storyboards into dynamic, interactive browser-based experiences.

– Build reusable, Three.js modular components (e.g., loaders, animations, shaders, interactions) to accelerate development.

– Optimize rendering performance for smooth cross-device, cross-browser experiences.

– Ensure code quality, scalability, and maintainability through best practices and documentation.

– Debug and resolve rendering and interaction issues in production environments.

– Contribute to product development by driving features from initial idea through launch.

– Collaborate cross-functionally with designers, developers, and stakeholders to deliver polished, immersive interfaces. 

Our benefits to you:
☘️An exciting and challenging job in a fast-growing holding, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and more
🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided
🏖Paid vacations, sick leave, personal events days, days off
💵Referral program — enjoy cooperation with your colleagues and get the bonus
📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯Rewards program for mentoring and coaching colleagues
🗣Free internal English courses
✈️In-house Travel Service 
🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, PIN-UP clubs for movie / book / pets lovers and more
🎳Other benefits could be added based on your location 
 

We are looking for a Strong Junior Front-End Developer (HTML / CSS / SCSS / JavaScript)

who is ready to become part of our growing IT team and work on modern, visually appealing web applications.
If you have practical experience in web layout, attention to detail, and a strong desire to improve your skills — you’ll be a great fit for us!

Required Skills and Experience:

✅ HTML5 / CSS3 / SCSS – solid knowledge of semantic markup, responsive and cross-browser layout.
✅ JavaScript (ES6+) – understanding of core concepts, DOM manipulation, and basic async operations.
✅ Adaptive & Responsive Design – experience creating layouts for different devices and screen sizes.
✅ UI/UX Implementation – ability to translate Figma or other design tools into pixel-perfect web pages.
✅ Version Control (Git) – experience working with repositories (GitHub, GitLab, or Azure DevOps).
✅ Basic understanding of REST API – ability to work with JSON and integrate data into layouts.
✅ Build Tools – experience with task runners or bundlers (Webpack, Gulp, or Vite).

Nice to Have (not required, but a plus):

🔶 TypeScript – basic experience or willingness to learn.
🔶 Angular / React / Vue – understanding of component-based frameworks.
🔶 Accessibility (A11y) – knowledge of web accessibility principles.
🔶 Animations – experience with CSS or JS animations (GSAP, Framer Motion, etc.).
🔶 Performance Optimization – ability to make web pages load faster and run smoothly.
🔶 Azure DevOps / CI/CD – basic understanding of build and deployment processes.
🔶 Familiarity with APIs like OpenAI or third-party integrations.

We Offer:

💼 Work in a dynamic and supportive team of professionals.
🚀 Real projects and opportunities to grow your technical skills.
🎯 Mentorship from experienced developers.
💰 Competitive salary and performance-based reviews.

Frontend developer -middle level

Snowball is a San Francisco and Kyiv-based FinTech startup revolutionising how cryptocurrency investments are made. We're building cutting-edge DeFi solutions that make crypto investing accessible to everyone.

The Role

As a Front-End Developer at Snowball.money, you'll be building the user-facing side of our Web3/DeFi products, translating design and vision into high-performance, elegant, and user-friendly interfaces. You'll collaborate closely with our design and development teams to create intuitive experiences that make our products accessible to everyone.

Responsibilities:

• Develop and maintain performant, modular, and responsive UI components using React and TypeScript
• Build cross-platform experiences with React and React Native
• Work closely with design teams using Figma to implement interfaces
• Implement state management solutions using Zustand
• Optimize the front-end for speed, scalability, and user experience
• Integrate with GraphQL and REST APIs using React Query/TanStack
• Create adaptive designs that work seamlessly across all devices
• Ensure high code quality with testing, documentation, and code reviews
• Participate in Scrum ceremonies and collaborate effectively with the team
• Stay updated with the latest front-end technologies and Web3 developments
• Document new solutions and maintain existing ones
• Adapt structured coding styles for easy review, testing and maintainability of the code
   

Requirements:

• 2+ years of experience in front-end development
• Strong knowledge of React, TypeScript, and component-based architecture
• Experience with Web3 technologies and Move ecosystem(aptos, sui)
• Proficiency with React Query/TanStack for data fetching
• Experience with state management solutions (Zustand preferred)
• Expertise in TailwindCSS for styling and responsive design
• Familiarity with React Native (a plus)
• Experience implementing UI from Figma designs
• Understanding of version control (Git) and Agile workflows (Jira/Confluence)
• Experience with GraphQL (a plus)
• Experience with Vercel deployment workflows
• Experience with Cursor editor (a plus)
• Passion for clean code, performance optimization, and user experience
• English - Intermediate or higher

Our Tech Stack:

• Frontend: React, React Native, TypeScript, TailwindCSS, Zustand, React Query/TanStack
• Design: Figma
• Backend: Node.js, nest.js, prisma, GraphQL, REST API, PostgreSQL
• Cloud: Google Cloud Platform, AWS, Docker, Github Actions, Vercel
• Project Management: Jira, Confluence, Git, Scrum
• Development: Cursor editor

Why Join Us:

• Work on cutting-edge Web3 and DeFi technology
• Flexible remote work environment
• Collaborative team culture focused on innovation
• Opportunity to shape the future of cryptocurrency investing

We are seeking a Senior Svelte Front-end Developer. It is essential that the person is highly product-driven, self-motivated, speaks excellent English, and enjoys using coding AI tools like Claude Code.

Our stack:

• Frontend: SvelteKit, turbo monorepo, Vercel
• Backend: Golang monorepo
• AI: Claude Code (mandatory), other agentic coding tools

What you'll actually do:

• Own features end-to-end: from specs to deployment to fixing bugs
• Use Claude Code to generate SvelteKit frontend code
• Review AI output for quality and architectural fit
• Fix bugs to learn our codebase, then rapidly build new features
• Make quick decisions on what to build vs buy vs generate with AI
• Talk to customers when they report issues and ship fixes the same day

You must have:

• Ownership mentality with a strive for elegantly simple, high-quality solutions
• Strive for max quality - you test your own work thoroughly since we have no QA team, everything you ship MUST work
• Product mindset - you care about WHY we're building something
• Proven experience using Claude Code or similar agentic AI (Cursor, Windsurf) 
• Strong SvelteKit experience - you'll review AI's code in Svelte, and you must understand how it works
• Broad architectural knowledge of building modern full-stack applications

• Excellent spoken English and a good internet connection for daily video calls

   

You are a great fit if you:

• Get frustrated when development takes weeks instead of days
• You think in features and architecture, and not single lines of code
• Can spot subtle bugs in AI-generated code quickly
• You ship fast, but always verify it actually works
• Have shipped real products that customers actually use
• Think "how can AI build this?" as your first instinct

‼️ Red flags (don't apply if):

• You've never used Claude Code or similar AI coding tools
• Your English is intermediate
• You need detailed specs before starting
• You see AI as a threat rather than leverage

• Working hours: 11:00–20:00 CET

   

Customer

This is a fast-growing SaaS startup founded in the USA in 2018. It operates in the demo platform domain and serves thousands of enterprise users worldwide. Backed by leading venture capital firms, the company values diversity, innovation, and a culture focused on action and real impact.

Project

The project is a cutting-edge demo creation platform that transforms how enterprise sales teams present complex software. Our goal is to reduce engineering dependencies, streamline the demo creation process, and provide customers with seamless, interactive experiences.

At this stage of development, we are focused on developing core cloning functionality, optimizing performance algorithms, and enhancing our Chrome extension and editor platform. This offers exciting opportunities to work on high-impact features in a fast-moving environment. Our dedicated team of engineers, product managers, and designers collaborate closely to deliver production-ready solutions for a market-leading SaaS product in the demo creation domain.

Requirements

• Experience in software development, ideally within product-focused teams
• Strong skills in JavaScript and TypeScript with a deep understanding of modern programming language features
• In-depth knowledge of DOM structures, virtual DOM, and reactivity models (React, Vue, Solid, etc.)
• Proven experience with browser APIs, Chrome Service Workers, and client-side rendering pipelines
• Familiarity with DOM diffing, mutation tracking, and state synchronization
• Skilled at solving complex problems involving DOM structures, Virtual DOM, tree diffing, and state synchronization
• Experience with Back-end frameworks such as Django and Flask
• Familiarity with cloud-native environments, Docker, and Kubernetes
• Solid experience with the software development lifecycle (SDLC), test-driven development (TDD), and CI/CD pipelines
• Ability to make technical trade-offs balancing business needs and engineering requirements

Personal Profile

• Strong communication, mentorship, and collaboration skills to work effectively in cross-functional teams
• Passion for startup culture and ability to adapt to a fast-paced environment

Responsibilities

• Develop and deliver complex features for the Chrome extension, editing platform, and replay rendering system
• Implement high-performance solutions for DOM diffing, tree traversal, and state synchronization
• Write high-quality, test-driven, and maintainable TypeScript/JavaScript code, with Back-end Django/Flask support
• Debug and resolve production issues and contribute to continuous integration pipelines
• Collaborate closely with product managers and Senior engineers to shape technical decisions and quickly deliver value to Customers
• Mentor Junior engineers, share knowledge, and promote the adoption of best engineering practices across the team
• Adapt to evolving startup priorities, contributing to both technical and process improvements

Let’s start with what PLANEKS offers:

0. Fast and comfortable hiring process.

1. 100% remote work opportunity and flexitime - choose working hours between 8:00-20:00.

2. Manage your compensation $$$$ budget - Travel tickets, Work equipment, Health insurance, Software, Sport, Training.

3. Salary paid in USD + tax compensation. Revision every 12 months. We want everyone to be confident in what tomorrow brings.

4. Everything to provide a good rest. YES: Paid vacation, national holidays, sick leaves(and support in case of serious diseases). NO: overtime, work on weekends.

5. Regular feedback, mentorship. Friendly and professional team that supports you. Well, we're proud of how we handle that. So you can always count on us.

6. Speaking clubs with a native speaker to constantly maintain your English level.

7. No bureaucracy - transparent processes and flat management. Working remotely means keeping things as simple as possible to work efficiently.

We propose something more significant than a job. PLANEKS means developing a new lifestyle for our colleagues and clients. So take your part in it!

About the Project

We’re collaborating with an innovative health-tech startup that’s developing an AI-powered motion analysis platform. Using computer vision and biomechanics algorithms, the system processes videos to deliver detailed motion data and automated reports for clinicians, therapists, and sports professionals.

 

The product includes a web dashboard that visualizes 3D movement data and integrates with cloud services, and you will work on the redesign of this dashboard.

You’ll join the project during an active development phase — working closely with the client’s technical team and PLANEKS engineers. Communication is via Slack, with occasional sync calls for design discussions and demos. The client is based in Europe.

Responsibilities
 

• Develop, maintain, and enhance modern front-end applications using React and TypeScript.
• Collaborate with backend engineers, designers, and client-side developers to ensure smooth integration and consistent UI/UX.
• Optimize performance, accessibility, and usability across different devices and browsers.
• Contribute to code quality through reviews, best practices, and continuous improvement initiatives.
   

Required Technical Skills
 

• Client-Side Routing
  
  - Hands-on experience with React Router (v6+ or v7 preferred).
  
  - Understanding of routing concepts such as nested routes, layouts, and dynamic segments.
  - Experience with TanStack Router is a plus.
   
• State Management
  
  - Solid understanding of React state management principles.
  - Practical experience with at least one of: Redux Toolkit, Zustand, or React Query.
  - Understanding of server (API) state management (RTK Query or React Query).
   
• API Integrations
  
  - Experience integrating REST APIs with React applications.
   
• UI & Styling
  
  - Experience with at least one modern React UI library:
  - Mantine UI (preferred), MUI, AntD, or shadcn/ui / Radix UI.
  - Ability to create consistent, accessible, and themeable UI components.
   
• Additional Skills
  
  - Strong knowledge of modern React patterns (hooks, context, composition).
  - TypeScript proficiency in React projects.
  - Familiarity with form-handling libraries (React Hook Form, Formik, Mantine, or AntD forms).
  - Writing maintainable, modular, and testable code.
  -  Familiarity with Vite.

Description

Our client is innovative manufacturer of medical devices in the United States which produces a devices and software applications.

At this project, you will have a great opportunity to be involved into the full development life cycle of medical software which is intended to help individuals by processing certain information taken from medical devices to identify health trends and to track daily activities. As additional there are opportunities to work with medical devices, in scope of end-to-end testing.

Requirements

Core Angular Skills (must-have):

• Angular (v12+): Deep understanding of components, modules, services
• Angular CLI: Efficient project scaffolding and configuration
• TypeScript: Strong grasp of advanced TS features
• RxJS: Mastery of Observables, Subjects, Operators, and best practices
• NgRx / Akita / NGXS: State management patterns
• Forms: Reactive Forms & Template-driven Forms
• Routing: Lazy loading, route guards, parameter handling
• Directives & Pipes: Custom and built-in 

Besides that:

• Experience with team leading 1+ years
• Total experience 7+ years
• High degree of comfort in JavaScript, CSS, and HTML.
• Experience shipping complex and well-tested UIs
• Effective communicator, and have experience writing and reviewing code in a team setting using source control software like Git/GitHub
• Familiarity with Java development is beneficial
• Keen sense of information architecture and visual design
• Motivated by writing fast, scalable code with testability in mind
• Excited by working in a fast-paced environment

Nice to have:

• Have worked with distributed/remote teams
  Familiar with functional programming paradigms and enjoy writing functional JavaScript
  Have deployed web apps with AWS/S3/Cloudfront via CI/CD pipelines like Jenkins
  Experience with typed JavaScript (TypeScript)
  Experience with contemporary JavaScript web/build tools (NPM/Yarn, Babel, Webpack/Rollup, etc.)
  Experience with SCSS, Sass, or Less
  Worked with project management software like JIRA

   

Job responsibilities

• Work on client facing healthcare apps involving lots of data, highly complex UI workflows, actionable insights /analytics, data visualizations etc.
• Lead team of UI engineers
• Experiment with new ways of visualizing large amounts of data in a scalable fashion.
• Build and maintain a wide variety of modular and extensible set of frontend micro services
• Research on new web technologies

About Us

Shield is a fast growing eCommerce skincare brand looking for a skilled Shopify Plus developer to join our team. We're focused on building custom solutions that improve customer experience and drive conversion.

The Role

This is a full-time time role ($3,000 USD/month). You'll work directly with our CEO (who handles design and strategy) to build and maintain custom Shopify Plus features.

What You'll Build

Priority projects:

• Custom subscription cancel flow with Skio integration
• Analytics dashboard for tracking cancel flow performance
• Customer quiz functionality and redirect logic (Octane.ai integration)
• Custom upsell experiences throughout the customer journey
• A/B testing infrastructure for ongoing optimization

Required Skills

• Strong experience with Shopify Plus (API, Liquid, theme customization)
• Proficient in JavaScript for interactive features
• Comfortable with backend development (Node.js, Ruby, or PHP)
• Ability to build custom analytics dashboards and tracking
• Strong English communication skills (written and verbal)
• Self-directed with ability to execute independently

Nice to Have

• Experience with Skio or other subscription platforms
• Familiarity with Octane.ai or similar quiz platforms
• Previous work on subscription cancel flows
• E-commerce conversion optimization experience

Work Details

• Fully remote
• Report directly to CEO
• Work independently on technical implementation
• Design and requirements provided - you focus on execution
• Ongoing maintenance and iteration expected

To Apply

Please share 2-3 examples of Shopify Plus stores or features you've built (links, screenshots, or descriptions are fine).

We are looking for a motivated and proactive JavaScript Developer to join our Support & Hands History team. You’ll be working on existing game titles built with PixiJS — supporting, maintaining, and enhancing them, while also collaborating closely on the development and evolution of our internal game library.
 

Requirements

• At least 1.5 years of commercial experience in JavaScript / Frontend development;
• Hands-on experience with PixiJS — commercial or non-commercial (e.g. pet projects, game jams, educational demos);
• Proven experience working with animations, including: Pixi-Spine, Animated Sprite, animation libraries (e.g. GSAP);
• Experience with version control systems (Git) and understanding of CI/CD processes;
• Experience working with texture generation tools or texture atlases;
• Understanding of game performance optimization and browser debugging;
• Languages: Ukrainian — required; English — B1 level or higher.
   

Will be a plus

• Previous experience in Game Development;
• Experience working with animation pipelines or integrating assets from artists.

Responsibilities:

• Support and maintain existing game titles built with PixiJS;
• Debug and improve gameplay functionality and performance across desktop and mobile;
• Implement visual and functional enhancements to enrich the player experience;
• Collaborate with QA, game designers, artists, and other devs to solve live issues and deliver stable updates;
• Work with our internal game library — help evolve and optimize it for future titles;
• Contribute to clean, maintainable code and improve internal development tools and pipelines;
• Stay aligned with team goals and deadlines while being proactive in communication and ownership.
   

Benefits

Why Join Us?

🎰 Be part of the international iGaming industry – Work with a top European solution provider and shape the future of online gaming;

💕 A Collaborative Culture – Join a supportive and understanding team;

💰 Competitive salary and bonus system – Enjoy additional rewards on top of your base salary;

📆 Unlimited vacation & sick leave – Because we prioritize your well-being;

📈 Professional Development – Access a dedicated budget for self-development and learning;

🏥 Healthcare coverage – Available for employees in Ukraine and compensation across the EU;

🫂 Mental health support – Free consultations with a corporate psychologist;

🇬🇧 Language learning support – We cover the cost of foreign language courses;

🎁 Celebrating Your Milestones – Special gifts for life’s important moments;

⏳ Flexible working hours – Start your day anytime between 9:00-11:00 AM;

🏢 Flexible Work Arrangements – Choose between remote, office, or hybrid work;

🖥 Modern Tech Setup – Get the tools you need to perform at your best;

🚚 Relocation support – Assistance provided if you move to one of our hubs.
 

Must have HTML/CSS, JS.
Will be a plus PHP, Hubl, No Code platforms, Figma.
This position suppose support Senior Developer on easy tasks.

Full remote, max 6.5 hours per day, Monday to Friday.

Please share your Github with examples of projects.

                                                                                                                                          

About Flamingo

Flamingo is revolutionizing the Managed Service Provider (MSP) industry with an AI-driven, open-source platform for IT and security. Our goal is to empower MSPs with automation, optimization, and scalability tools to enhance their operations.

Role Overview

As a Full-Stack Engineer at Flamingo, you’ll play a key role in building the core user experience and backend logic behind our AI-powered platform. 

This is a hands-on engineering role where you’ll collaborate with product designers, DevOps, and fellow engineers to ship quickly, iterate often, and build systems that scale.

Key Responsibilities

• Build and maintain core product features using React, Node.js, and TypeScript
• Design, develop, and optimize scalable RESTful and GraphQL APIs
• Translate product and design specs into high-quality, user-centric interfaces
• Ensure performance, accessibility, and responsiveness across modern browsers
• Collaborate closely with the design team to evolve and maintain our design system
• Write clean, modular, well-tested code and contribute to code reviews
• Participate in system architecture discussions and technical decision-making
• Work with DevOps to ensure smooth deployment and observability of services

Qualifications

Must-Have:

• 4+ years of experience in full-stack development
• Strong proficiency with React, Node.js, and TypeScript
• Solid understanding of modern frontend architecture, component design, and state management (e.g., Redux, Zustand, etc.)
• Experience building scalable backend services with Node.js (Express/NestJS)
• Familiarity with database design and usage (SQL and/or NoSQL)
• Experience integrating APIs and working with REST and/or GraphQL
• Strong understanding of version control and collaboration workflows using Git

Nice-to-Have:

• Experience with microservices or event-driven architectures
• Familiarity with authentication protocols
• Experience with server-side rendering and performance optimization
• Exposure to infrastructure tools (Docker, Kubernetes, CI/CD workflows)
• Understanding of accessibility and internationalization best practices

Why Join Flamingo?

• High-impact role: As a full-stack engineer, you’ll work across the entire product experience from backend architecture to the user interface, shaping how thousands of MSPs interact with our platform.
• Ownership & Equity: Competitive compensation and a meaningful equity stake in a high-growth, early-stage startup.
• Modern Tech Stack: Built with React, Node.js, and open-source tools, all in a scalable microservices architecture.
• Remote-first Culture: Work from anywhere and collaborate with a team of senior engineers, designers, and product leaders.
• Mission-Driven Team: Be part of a company that’s redefining how IT and security services are delivered, making powerful automation tools accessible to all MSPs, not just the enterprise giants.

At ScrumLaunch, we build scalable, reliable, and secure software that helps startups grow fast and sustainably.
We’re looking for a Frontend Developer who’s passionate about clean code, modern frameworks, and building user experiences that truly make an impact.

Requirements:
- 3+ years of experience in frontend development;
- Strong knowledge of TypeScript;
- Deep experience with React, including React Context API;
- Confident use of Next.js (static export & SSR);
- Experience with React Hook Form & Yup for form validation;
- Proficiency in TanStack Query (React Query) for data fetching;
- Familiarity with Zustand for state management;
- Good understanding of Tailwind CSS;
- English: Upper-Intermediate or higher;
- Willingness to work with a team located in the EST time zone.

Work conditions
- Opportunities to work on diverse and challenging projects;
- A supportive and collaborative team environment;
- 12 vacation days per year;
- 5 sick days per year;
- English classes;
- Access to therapist and psychologist support for mental well-being.

We're building the most advanced browser-based analytics platform in life sciences — where WebAssembly, WebGPU, AI, and scientific computing meet elegant design. The browser is our performance frontier and creative canvas. Join us to push the limits of what the web can do and shape the next generation of interfaces for scientific discovery.

The challenge

Datagrok is both a ready-to-use platform for exploratory data analysis and a foundation for building applications on top of it - think an operating system for life sciences. For UI, we use our own lightweight library, and it has served us really well, unlocking the best performance of interactive visualizations, letting scientists build powerful UIs in a few lines using our JS API, and enabling developers to build rich UI across 50+ plugins.

Now we're taking our UX toolkit and platform experience to the next level. We want to keep the ability to write lightweight, expressive code, and at the same time, we want new frontend developers to be productive on day 1 using popular technologies (maybe React), have dynamically discoverable and configurable components, LLMs to produce the UX based on user prompts, and more.

We're not rewriting the core - we want a technology that would simplify creating UI in apps, plugins, and scripts. And along the way, we'll be creating cool high-performance scientific applications on that stack!

What you'll do

This is an individual contributor role with significant ownership and decision-making authority.

• Enable 90% of polished UIs to be built in pure JavaScript (no HTML or CSS) in lightweight (no-dependency, no-preprocessing) scripts
• Decide whether to evolve our JavaScript API or adopt a framework (React/Vue/etc.), styles (Tailwind), preprocessor (SASS), and/or component library
• Build wrappers for the Datagrok components and expose as widgets using the library of choice
• Develop the component model for widget registration, discovery, and configuration
• Create intuitive UIs for customizing components, binding data, and handling events
• Implement a visual designer with a drag-and-drop palette of dynamically loaded widgets
• Evolve the JavaScript API to be fast, stable, and well-documented
• Build scientific applications using the UX framework
• Build prototypes that showcase platform capabilities and improve UX based on feedback
• Head the front-end development, establish guidelines, mentor, do PRs, etc.

Requirements

Must have

• 5+ years of front-end development (but ability matters more than years)
• Strong JavaScript/TypeScript skills and experience building complex web applications
• Expertise with modern frameworks (React, Vue, or similar)
• Experience building reusable component libraries or design systems
• Proven ability to create polished, intuitive interfaces users love
• Efficient, performant code for data-intensive applications
• Strong problem-solving skills, ability to work independently, and get stuff done quickly

Nice to have

• UX/UI design background or strong aesthetic sense
• Game development experience (demonstrates ability to create engaging, interactive experiences)
• Experience with data visualization libraries and techniques
• Full-stack development skills (Java, Python, R, or other languages)
• Experience with high-performance web applications or scientific computing
• Background in natural sciences, STEM, or scientific software

You're the ideal candidate if you

• Think in systems - building frameworks that empower others to create
• Care deeply about developer experience and elegant architecture
• Thrive in small, autonomous teams where decisions have immediate impact
• Enjoy solving challenging technical problems at the intersection of performance and design
• Get excited about pushing browser capabilities (WebAssembly, WebGPU, WebGL)
• Have a portfolio that makes us say, "wow - we need this person"

We value ability over checkboxes. If you can demonstrate you can deliver - through experience, portfolio, or projects - we want to hear from you.

To apply: include portfolio links, GitHub, or demos showcasing your best UI work.

Ixilix is a technology-driven company that builds high-quality solutions and long-term partnerships. Our team is growing, and we are looking for a Frontend Team Lead.

Responsibilities:

• Lead and mentor a team of 2–6 Frontend Developers.
• Plan and delegate sprint tasks, manage priorities, and monitor progress.
• Define and maintain frontend architecture, technical documentation, and best practices.
• Conduct regular 1:1 meetings, provide feedback, and support professional growth of team members.
• Ensure timely and high-quality delivery of features and game releases.
• Participate in hiring, onboarding, and evaluating new developers.
• Collaborate with Producers, Artists, and QA teams to align on game vision and milestones.
• Integrate and support browser games based on the PIXI.js library.
• Develop new games from scratch (with commercial experience).
• Creating a game engine from scratch (with commercial experience).
• Develop and optimize high-performance applications using PIXI.js.
• Compose clean, efficient, and dependable code.
• Conduct code reviews and ensure compliance with coding standards.
• Optimize game performance by identifying and eliminating bottlenecks.

Required Skills:

• 6+ years of experience as a Front-End developer, including slots development.
• Proficiency with JavaScript (Advanced Level), Typescript.
• Strong experience with PIXI.js.
• Experience with library React 18 version
• Strong experience with States systems (like Redux, MobX, etc) + experience with StateMachine on Slots.
• Strong development experience (GSAP, Spine, etc).
• Solid understanding of OOP, SOLID principles, DI (Dependency Injection), client-side architecture, and design patterns.
• Strong experience with WebSockets, socket.io, etc.
• Experience with game optimization.
• Familiarity with GIT rebasing schema and submodules
• English B1+
• Ukrainian C1+

Preferred Skills:

• Knowledge of Node.js.
• Familiarity with RxJS.
• Experience with PostMessage and WebWorkers.
• Experience with HTML, CSS.

Competencies:

• Strong problem-solving skills, especially in critical situations.
• Leadership qualities and team collaboration.
• Analytical and communication skills.
• Initiative and proactive attitude towards improvement

What we offer:
Rewards & Celebrations:

• Quarterly Bonus System
• Team Buildings Compensations
• Memorable Days Financial Benefit

Learning & Development:

• Annual fixed budget for personal learning 
• English Language Courses Compensation

Time Off & Leave:

• Paid Annual Leave (Vacation) - 24 working days
• Sick leave - unlimited number of days, fully covered

Wellbeing Support:

• Mental Health Support (Therapy Compensation)
• Holiday Helper Service

Workplace Tools & Assistance:

• Laptop provided by Company (after probation)

Work conditions:

• Remote work from EU
• Flexible 8-hour workday, typically between 9:00 - 18:00 CET
• Five working days, Monday to Friday
• Public holidays observed according to Ukrainian legislation
• Business trips to Bratislava every 3-6 months (company provides compensation of expenses)

At Ixilix, we value transparency, trust, and ownership. We believe that great results come from people who care - about their work, their team, and the impact they create. 

Sounds like you? Let’s connect! We’re just one click away.