Jobs

Simplify helps companies to build and operate remote engineering teams. If you need a team to develop a website, mobile application or software - contact us now.

The fullstack role is for a Medical Technology client who is setting up a storefront for the first time online, and ideally would love two experienced developers who have worked together before, but that isn't a prerequisite to applying. They're looking for people with a lot of eCommerce experience and familiarity with Shopify SDK

Long-term project

• You are a senior JavaScript developer

• Have good experience with React SDK 

• Experience with Shopify SDK 

• Experience in the implementation of GraphQL interfaces 

• Experience building ecommerce MVPs 

• Experience with Prisma DB
• Experience with CI/CD
• Experience with Remix

Bonus

• Experience with Hydrogen, Storefront API

What will you do?

• Collaborate closely with seniors and build a cool new MVP 

• Create something with impact 

• Join a fresh, exciting project

Requirements:

We are looking for an experienced Front-End Engineer who:

* Has 3+ years experience with React.

* Has wide experience in JavaScript (ES5+) and TypeScript.

* Has good knowledge of HTML5, CSS3 (Sass/Less/stylus), and BEM methodology.

* Has proficient in working with REST API.

* Has experience with Redux, ReactRouter.

* Has experience with flexbox, grid, animation.

* Has experience with version control systems (Git and Git-flow).

* Has experience with front-end tooling (npm-scripts/webpack/esbuild).

* Has experience with Agile and Kanban methodologies and working in cross-functional teams.

* Has understanding of MVC and MVVM patterns.

* Has understanding of accessibility standards and best practices.

* Has understanding of SEO standards and best practices.

* Has great communication skills and problem-solving skills with attention to detail.

Responsibilities:

* Creation of new products from scratch.

* Implementation of new solutions and technologies.

* Support of existing functionality and continuous improvement one.

* Creation of adaptive/responsive layouts and support of mobile devices.

Will be a plus:

* knowledge Node.js, Express;

* knowledge PWA, AMP;

* knowledge Canvas;

* knowledge GraphQL;

* knowledge MySQL;

* knowledge about conducting A/B tests;

* experience with multi-cultural sites (multi-language solutions)

* experience with PHP, Laravel;

* experience with CI/CD, Jenkins.

Технології:

- 3+ years experience in web development;

- Good Knowledge of Javascript (AngularJS 1.6 / Angular 7-9), DOM, CSS (SASS) and HTML;

- Expert knowledge, confidence, and efficiency in debugging issues;

- Ability to find and evaluate multiple solutions to a given problem and apply working fixes;

- Experience with Git;

- In-depth knowledge of broader Web Application architecture topics, such as:

- HTTP spec (common headers, response statuses, etc...)

- JWT tokens

- CORS, XSS, CSP

- In-depth knowledge of REST

- Overall knowledge of CI/CD

- In-depth knowledge of Static code analysis and code quality

-Use JIRA bug-tracking system, Time Tracker

Обов"язки:

Implementation of new features of company projects in a timely and professional manner

Close cooperation with project team members

New features development

Perform other related duties as required

Наша команда розробки на данний час складається з 18 спеціалістів PO,PM,BA, 4 back-end dev, 4 front-end dev, QAteam, UI/UX Designer та ми постійно ростемо!

Про проєкт:

H24.ua is a medical information service of cloud storage, online processing and secure exchange of medical information in real time for patients and health care workers.

About Ranktracker:

Ranktracker is a premier SEO platform that helps users track and optimize their search engine performance using cutting-edge technology. Our mission is to provide accessible and actionable SEO tools that empower our clients' success.

About Job Position:

We are embarking on an ambitious greenfield project to create a high-performance, globally accessible website using Eleventy (11ty) (https://www.11ty.dev) as the static site generator, with data managed by Directus (https://directus.io/) and fetched via a GraphQL API at build time. 

With 180,000 pages and translations in 28 languages, this is a high-impact, large-scale project that requires a developer skilled in performance, scalability, and maintainability.

Our goal is to deliver a 400 Lighthouse score (https://www.11ty.dev/speedlify/) while supporting advanced features like incremental builds, reusable components, and seamless internationalization.
 

This project is a unique opportunity to create a global, highly performant website from scratch, with an emphasis on internationalization, scalability, and accessibility.

 

Role and Responsibilities:

1. Translate Figma Designs: Accurately translate high-fidelity Figma designs into responsive, pixel-perfect 11ty templates.

    

2. Reusable HTML Components: Develop reusable and modular HTML components that integrate seamlessly with Directus.

    

3. Incremental Builds: Implement a build process that only compiles new or edited pages, ensuring efficient handling of our large content base (130,000 pages).

    

4. Implement Internationalization (i18n): Ensure proper multilingual support with accurate file organization and build processes to manage translations across 28 languages seamlessly.

    

5. File Organization: Set up a clean, maintainable file structure that supports internationalization and scaling.

    

6. Sitemap Generation: Implement automatic sitemap generation to enhance SEO and navigation.

    

7. Achieve Performance Excellence: Optimize site performance to hit a perfect 400 Lighthouse score for Performance, Accessibility, Best Practices, and SEO.

    

8. Staging/Dev Environment: Set up a fast and reliable staging/development environment to test builds and features efficiently.

    

9. Integrate GraphQL and Directus: Fetch data dynamically at build time using a GraphQL API connected to Directus, ensuring robust and scalable data management.

    

10. Testing: Rigorously test the site for performance, accuracy, and language support.

     

11. Documentation: Provide clear, maintainable documentation for components and processes to ensure ease of use for future developers.
    
     

Key Qualifications:

• Frontend Expertise: Strong knowledge of HTML, CSS, JavaScript, and templating languages like Markdown, Nunjucks or Liquid.

   

• Eleventy (11ty): Proven experience in building static sites using 11ty, including advanced features like incremental builds.

   

• Directus and GraphQL: Experience working with Directus or similar headless CMSs, and integrating GraphQL APIs for static site generation.

   

• Scalability: Expertise in handling large-scale projects with tens of thousands of pages, ensuring efficient builds and performance.

   

• Internationalization (i18n): Deep understanding of multilingual site structures, translation file management, and localization best practices.

   

• Performance Optimization: Proven ability to achieve perfect Lighthouse scores using techniques like lazy loading, image optimization, critical CSS, and caching strategies.

   

• SEO Best Practices: Familiarity with sitemap generation, structured data, and meta-tag implementation.

   

• Testing and Debugging: Proficient with tools like Lighthouse, Axe, or similar for performance and accessibility testing.

Preferred Qualifications:

• Experience with advanced 11ty plugins or custom plugin development.
• Familiarity with setting up automated CI/CD pipelines for static site deployment.
• Contributions to the Eleventy or Directus ecosystems.
• Knowledge of progressive web app (PWA) principles.

Why Join Us?

• Work on a cutting-edge project that pushes the boundaries of performance and scalability.
• Collaborate with a highly skilled and passionate team.
• Build a global website with advanced features and reach a large audience.

• Enjoy a flexible, remote work environment.

   

Additional Information:

• Start Date: ASAP
• Project Objective: A blazing-fast, multilingual, scalable static site with perfect Lighthouse scores and efficient incremental builds.
   

We look forward to your application and welcoming you to the team!

We're looking for an experienced Ember.js Front End Developer to join our dynamic team and support our international client, a leader in innovative software solutions for the gaming industry. This company offers end-to-end, customizable solutions that empower gaming providers to effectively launch and scale their operations. By integrating advanced tools for payment management, marketing, and customer retention, they create a seamless, high-quality experience that serves multiple aspects of the gaming business.
 

Requirements:
 

Experience: 3+ years in frontend development with at least 2 years of hands-on experience using Ember.js.

Technical Skills:

• Proficiency in JavaScript (ES6+), HTML5, and CSS3.
• Deep understanding of Ember.js ecosystem, including Ember CLI, components, and data flow.
• Experience with Ember Data and managing complex models.
• Familiarity with build tools and version control systems (e.g., Git).

• Understanding of RESTful APIs and integrating backend services.

  
  Design and Performance:

• Experience with responsive design and mobile-first development.
• Proficiency in performance optimization and accessibility standards.
  
  Soft Skills:
• Strong problem-solving skills with a detail-oriented mindset.
• Excellent communication and teamwork abilities.

• A proactive approach to learning and adopting new technologies.

   

Preferred Qualifications:
 

• Experience with TypeScript in an Ember.js context.
• Familiarity with testing frameworks like QUnit or Mocha in Ember.js projects.
• Exposure to CI/CD pipelines and modern deployment processes.
• Knowledge of other frontend frameworks or libraries (e.g., React, Vue.js).
• Experience contributing to open-source Ember.js projects or plugins.

We're looking for an experienced Ember.js Front End Developer to join our dynamic team and support our international client, a leader in innovative software solutions for the iGaming industry. This company offers end-to-end, customizable solutions that empower iGaming providers to effectively launch and scale their operations. By integrating advanced tools for payment management, marketing, and customer retention, they create a seamless, high-quality experience that serves multiple aspects of the iGaming business.

About the project: a world-leading software solutions company for iGaming providers which offers customizable features, over 300,000 active users around the world.

Requirements:

• Experience: 3-4+ years in frontend development with at least 3 years of hands-on experience using Ember.js
• Proficiency in JavaScript (ES6+), HTML5, and CSS3
• Deep understanding of Ember.js ecosystem, including Ember CLI, components, and data flow
• Experience with Ember Data and managing complex models
• Familiarity with build tools and version control systems (e.g., Git)
• Understanding of RESTful APIs and integrating backend services
• Experience with responsive design and mobile-first development
• Proficiency in performance optimization and accessibility standards
• Strong problem-solving skills with a detail-oriented mindset
• Excellent communication and teamwork abilities
• A proactive approach to learning and adopting new technologies.

Nice to have:

• Experience with TypeScript in an Ember.js context
• Familiarity with testing frameworks like QUnit or Mocha in Ember.js projects
• Exposure to CI/CD pipelines and modern deployment processes.
• Knowledge of other frontend frameworks or libraries (e.g., React, Vue.js)
• Experience contributing to open-source Ember.js projects or plugins.

We Offer:
- A chance to be part of a growing tech company in the iGaming domain
- Exposure to diverse aspects of product development, from architecture to delivery
- A supportive, collaborative, and remote-friendly work environment
- 16 days of PTO
- Being a part of a bigger international team with access to various interesting projects in finance and beyond.

Interview process:
- Intro-call (20 mins)
- 1st Technical interview with Tech Lead (~45 mins)
- Technical task - it’s optional and could be assigned by Tech Lead 
- 2d Final interview with HRD and General Manager (~45 mins).

Remote, Full-time role

We Want:
We are a AI startup looking for a self-directed technical owner (Next.js, Firebase, React, AWS) who thrives in building complete solutions from concept to production. You're the type who automates processes before being asked and prototypes new approaches over weekends.

Key Indicators We Value:
✅ 2+ years shipping next.js web app production features SOLO (not just team contributions)
✅ Portfolio showing personal projects
✅ History of choosing tools/stack for projects
✅ Built your own CI/CD pipelines without supervision

Technical Non-Negotiables:
⌨️ Next.js 14+ App Router mastery (Show us your SSR/ISR implementations)
🔥 React ecosystem fluency (Turborepo - Webpack - Vite stack preferred)
☁️ Cloud-native mindset (We break down ALL requirements to serverless functions)
🤖 Cursor/Devin power user (You code 30% faster with AI pair-programmers)

Your Playground:
- Lead weekly sprints for AI-powered web apps (no PM hand-holding)
- Own features from Ideas → Prod (We hate micromanagement)
- Break monoliths into serverless microservices (Your architectural decisions matter)
- Create bleeding-edge prototypes (We allocate 10% time for your passion projects)

Proof, Not Promises:
Show us:
- A Next.js project YOU designed/architectured alone
- Complex state management solution you created
- Performance optimization war story (with Lighthouse before/after)

Include in Proposal:
- Link to a side project and Github
- Why you

Hello! The PayAdmit team is looking for a Middle Front-End APEX Developer as freelance position.

Requirements:
- VueJS;
- HTML;
- CSS;
- APEX;
- Git;
- Strong knowledge of architectural patterns;
- At least 3+ years of experience with e-commerce projects.

Working conditions:
• Work schedule of our company is 5/2 from 10:00 to 19:00;
• Remote work;
• We provide all the necessary tools for your successful and comfortable work;
• Training at the expense of the company (courses, seminars, new and interesting projects);
• Learning English at the expense of the company;
• Ability to switch between projects and try yourself in different roles.

Key requirements:

Experience:

• Proven experience in developing web applications using WebGL for at least 5 years;
• A portfolio with examples of projects demonstrating skills in working with WebGL.

Deep knowledge of WebGL API:

• Expert understanding of the low-level WebGL API and its capabilities.;
• Ability to work with shaders (GLSL) for vertex and fragment programs;
• Knowledge of the basic concepts of 3D graphics: transformation matrices (modeling, view, projection), lighting, texturing, buffers (vertex, index).

Knowledge of JavaScript:

• Excellent knowledge of JavaScript (ES6+);
• Understanding of asynchronous programming and working with DOM.

Mathematics for graphics:

• Good understanding of linear algebra and geometry required for 3D graphics.

Working with API:

• Experience integrating with RESTful API and other web services. Experience with other types of API (especially RPC) will be a plus;
• Understanding of the principles of the HTTP protocol;
• Ability to process data in JSON and other formats.

Working with version control systems:

• Mandatory knowledge of Git and experience with GitLab, GitHub or Bitbucket;
• Understanding of the principles of optimizing the performance of WebGL applications.

Knowledge of modern web technologies:

• Good understanding of HTML and CSS.

English:

• Spoken and written English at a level sufficient for reading technical documentation and communicating with the team (B1 or higher).

Additional desirable skills:

• Experience with 3D engines and libraries for WebGL (e.g. Three.js, Babylon.js);
• Knowledge of the principles of physics engines (e.g. Cannon.js, Ammo.js);
• Knowledge of the principles of shader development (GLSL);
• Experience with WebAssembly (Wasm) to improve graphics performance;
• Knowledge of CI/CD (Continuous Integration/Continuous Delivery) principles;
• Experience working in Agile teams;
• Ability to estimate deadlines and stick to them;
• Proactivity, responsibility, ability to work in a team;
• Desire to develop and learn new technologies.

We offer:

• An interesting project and non-trivial tasks that will allow us to show your professional attitude and creativity;
• Friendly team;
• Comfortable working schedule and working conditions;
• Opportunity to work remotely as well as in an office located in the city centre;
• Stable, competitive salary;
• Paid vacation and sick leaves;
• Opportunity for professional growth and career development;
• English, paid professional courses, coffee/fruits and other pluses :)

Our stack:

• HTML, CSS
• JavaScript/TypeScript, PHP
• Next.js
• Wordpress, Wordpress API
• MySQL
• Docker
• GitLab
• AWS
• Jira
• GIT
• Figma

Required skills:

• 3+ experience in JavaScript/TypeScript
• Strong experience building interfaces with Next.js framework;
• Solid experience with HTML5, CSS3;
• Solid experience with RESTful JSON APIs;
• Good experience with MySQL database;
• Experience with a Wordpress, Wordpress API;
• Application state management;
• oAuth, JWT;
• Code quality tools;
• Good communication skills;
• Responsibility for the changes made;

Will be a plus:

• Experience with a Docker;
• Experience with Wordpress plugins;

Your responsibilities:

• Implementation of new project interfaces;
• Project development and support;
• Project performance/security improvements;
• Implementation of new UI/UX designs;
• Collaborate closely with product managers, designers, and backend developers;
• Write clean, modular, maintainable, and well-documented code
• Bugfixes

About Us:

Our ecosystem is an American-Ukrainian Web3 venture. In the market for 7+ years, we’ve built many exciting DeFi products and supported other projects in their journey. Current company is our launchpad and incubator, empowering innovative blockchain startups with the necessary resources and exposure to succeed. It powers token launches and serves as a growth studio for the founding teams. We bring investors, early adopters, and the expertise to showcase the most promising projects to the global crypto stage.

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:

● 3+ 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 looking for a Middle Frontend Developer apply now and join our team 🚀
 

Required skills:

• 3+ years of experience with React.js and TypeScript
• Experience in building intuitive user interfaces for mobile applications
• Experience in creating and integrating an Outlook Web Add-in
• Strong knowledge of HTML, CSS, and experience with SCSS, TailwindCSS, Bootstrap, or similar tools
• Experience integrating with RESTful APIs
• Proficiency in Git for collaborative development
• Ability to quickly understand and work with existing code
• English – Upper-Intermediate+
   

Will be a plus:

• Experience with Next.js
• Familiarity with CMS (Prismic, Storyblok, Ghost, etc.)
• Knowledge of alternative JS frameworks (Vue, Angular, Svelte)

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

For our client (International FoodTech Holding), we're looking for a Front-End Engineer to build a co-branded project for a partnership, that will be based on an existing webapp. 

Requirements

Must-Have:

• 3+ years of professional experience as a front-end developer.
• Strong proficiency in JavaScript/TypeScript, HTML5, and CSS.
• Solid hands-on experience with React.js and Vue.js (both required).
• Familiarity with state management libraries (e.g., Redux, Pinia, Vuex).
• Experience with modern front-end tooling (Webpack, Vite, Babel, etc.).
• Knowledge of RESTful APIs and how to integrate with them.
• Experience writing unit and integration tests (e.g., Jest, Testing Library, Cypress).
• Good understanding of responsive design and accessibility standards (WCAG).

Nice-to-Have:

• Experience in FoodTech, eCommerce, or related industries.
• Familiarity with CI/CD pipelines and Git workflows.

• Experience with SSR frameworks (e.g., Nuxt, Next.js).

   

What We Offer

• Flexible working hours and a remote-first culture.
• Work with a highly collaborative and diverse international team.
• Top-notch technologies and workflows.
• Review from high-level engineers and professional growth

Who we are:
Selesa offers IT outsourcing, specialist out-staffing, and project management services to enhance business operations. We focus on providing skilled professionals for IT needs, including development, security consulting, and business development. Selesa also manages sales, account management, and human resources to support company growth. Our services are known for efficiency, quality, and strong communication, making us a trusted partner for businesses looking to streamline and secure their IT infrastructure. Originated in Vilnius, Lithuania, we cater to global clients.

Who we're looking for:

We’re seeking a Middle Front-End Developer with a strong background in responsive web applications. You'll collaborate with various teams to build user-friendly, scalable systems while adhering to web standards. The ideal candidate is adaptable, detail-oriented, and passionate about software engineering, with a direct impact on enhancing user experience and performance for a global audience.

What you’ll be doing:

• Develop and optimize HTML5 games in collaboration with different teams.
• Write clean, efficient, and maintainable code with a strong focus on user experience.
• Ensure UI/UX designs are both creative and technically feasible.

• Stay ahead of web development trends, implementing innovative solutions to elevate the gaming experience.

   

Who you are and whom we’re seeking:

• 3+ years of experience as a JavaScript/TypeScript Developer;
• Strong knowledges: (Phaser 3 or Pixi.js)
• Strong knowledge of OOP fundamentals and game programming patterns;
• Experience in game development;
• Strong knowledge of Spine
• Proven experience with GSAP
• Ability to write clean code;
• Experience with git;
• Experience working in a team, good communication skills;
• At least intermediate English language proficiency.

Advantages:

• Experience with browser Dev Tools - for performance analysis and debugging

• Portfolio with your own projects on github

   

What we offer:

• A competitive salary
• Flexible work schedule
• Excellent opportunities for career advancement
• A long-term job with a prospect of financial and career growth

• A friendly and positive work environment with like-minded teammates

   

When submitting your application, please make sure to include your responses to the following screening questions in your COVER LETTER:

1. How many years of experience do you have in front-end development?
2. Please describe your experience and proficiency in HTML, CSS, and JavaScript, and specify your years of experience in HTML5 game development.
3. Please write details about your experience with each of:
   1. TypeScript
   2. Pixi.js
   3. GSAP
   4. Spine
4. Would you agree to do a test task before an interview? This would allow us to evaluate your skills and make an appropriate financial offer to you.
5. What are your monthly salary expectations for a long-term, full-time position (if we consider 40 hours a week)?

About the Role We are looking for a Front-End Developer with at least 3 years of professional experience, including at least 2 uninterrupted years working specifically in front-end development (not counting short-term or unrelated roles).

Job role and responsibilities:

As part of a cross-functional team including our web lead developer, database engineer and app developer, you will contribute to the ongoing development and maintenance of our website. This is a dynamic role involving front-end, with a primary focus on delivering engaging, modern user experiences. Your main responsibility will be the following:

• Develop and support clean, W3C-compliant front-end code that aligns with stakeholder specifications. Prioritize web standards, semantics, usability, accessibility, and performance optimization.
• Build adaptive web pages for desktop, tablet and mobile using custom CSS solutions and frameworks like Bootstrap.
• Work on supporting and implementing interactive musical instruments using JavaScript.
• Implement analytics tagging and ensure accurate data capture.
• Collaborate on the selection and implementation of development tools, technologies, and processes.
• Serve as a key point of contact for technical projects across teams — participating in requirement gathering, execution, and deployment phases.

What we require from you:

• Minimum 3 years of hands-on experience with HTML, CSS, and JavaScript.
• Proficient in JavaScript with an ability to deliver custom-tailored solutions to stakeholder needs.
• Solid understanding of SEO best practices and implementation in web development.
• Familiarity with performance optimization tools such as YSlow and Google PageSpeed Insights.
• Strong working knowledge of Git for version control.
• Excellent English communication skills — precise, open-minded and solution-oriented. A proactive and collaborative approach is highly valued.
• Experience with AWS CloudFront and S3 is a plus but not required.
• Experience with Laravel’s blade templating engine is a plus but not required.

How to apply:

If you’re passionate about building high-quality web experiences and want to join a collaborative, forward-thinking team, we’d love to hear from you!

We’re excited to hear from you!