Jobs JavaScript / Front-End

Phenomenon Studio is a boutique product design and development agency founded in 2019. We work with teams who’ve outgrown what they’ve built — from venture-backed startups to established market leaders — and own the work end-to-end: strategy, design, development, and post-launch.
 

The team of 70+ senior specialists is based in Europe, with entities in the USA, Estonia, and Switzerland, serving SaaS, fintech, healthcare, and EdTech. Across 120+ launches, clients have raised $500M+. 
Phenomenon is HIPAA-compliant, Nielsen Norman Group UX certified, and a Webflow Experts partner, holding a 5.0 rating on Clutch — and most clients come back for a second project.
 
We are looking for a HubSpot developer for part-time or project-based collaboration — building websites of varying complexity on HubSpot CMS.
 
Requirements
 

• 3+ years of commercial experience developing on HubSpot CMS/CRM
• Strong HubL templating: custom modules, themes, landing pages
• Hands-on experience with HubSpot CRM configuration: workflows, custom objects, properties
• Practical experience with HubSpot APIs and webhooks (private apps, RESTful APIs)
• Solid HTML5, CSS3, JavaScript
• English level: Intermediate+

Responsibilities
 

• Build and maintain HubSpot CMS websites, landing pages, custom modules and themes
• Configure and maintain CRM logic: workflows, custom objects, associations
• Develop integrations using HubSpot APIs, webhooks, and private apps
• Translate client/business requirements into HubSpot solutions together with PM/designer
• Troubleshoot issues and optimize site performance and CMS technical operations

What we offer:
 

• A team of open-minded and supportive professionals
• Comfortable part-time schedule with autonomy in processes
• Full remote work format
• Flexible workload and the possibility to combine with studies, personal projects, or other activities
• Work-life balance: we value results, not the number of hours spent
• Opportunity to grow into a full-time role in the future (if desired)

Recruitment process: Recruitment interview — Technical interview

We are looking for a JavaScript / SCADA Engineer with strong experience in web-based industrial applications, SCADA/HMI systems, and engineering automation.

You will work at the intersection of modern web development and industrial automation, building responsive HMI/SCADA interfaces, reusable frontend components, dashboards, alarms, diagnostics, and engineering automation workflows.

This role is ideal for someone who understands both software engineering and industrial control environments.

What You’ll Do

• Develop and maintain web-based SCADA / HMI applications
• Build dashboards, visualization screens, alarm interfaces, and diagnostic tools
• Design reusable frontend components and scalable application architecture
• Integrate SCADA systems with PLC environments and industrial data sources
• Work with OPC UA and other industrial communication protocols
• Build integrations using REST APIs, JSON, and structured data models
• Automate engineering workflows, including PLC and engineering data import and processing
• Reduce manual engineering effort through tooling and automation
• Contribute to automated testing, CI/CD, and deployment pipelines
• Collaborate with automation engineers, software developers, and technical stakeholders

Must-Have Requirements

• Strong commercial experience with JavaScript
• Strong knowledge of TypeScript, HTML5, CSS, Node.js
• Experience with Git, REST APIs, JSON, and data modeling
• Experience designing frontend architecture and reusable components
• Experience with automated testing and CI/CD pipelines
• Strong knowledge of SCADA / HMI applications
• Experience working with PLC environments
• Hands-on experience with OPC UA and industrial communication protocols
• Experience with at least one SCADA platform:
  • Ignition
  • atvise
  • WinCC
  • zenon
  • FactoryTalk
  • AVEVA / Wonderware
  • Siemens Industrial Software
• Experience developing web-based HMI/SCADA dashboards and visualization interfaces
• Experience with engineering automation and processing PLC / engineering data

Nice to Have

• MQTT
• Java
• Python
• SQL
• Docker
• Linux
• Siemens TIA Portal
• PLC engineering fundamentals
• Experience with warehouse automation systems and processes

What We’re Looking For

• Strong problem-solving and debugging skills
• Ability to work independently
• Practical engineering mindset
• Strong attention to reliability and maintainability
• Comfortable collaborating across software and industrial automation teams

If you have strong JavaScript skills combined with hands-on SCADA and industrial automation experience, we’d love to hear from you.

Arounda is a design & development partner for enterprise platform modernization. Founded in 2016, we’re a multidisciplinary team of product designers, UX strategists, and front-end engineers.

Over the past 10 years, we've delivered 500+ platform initiatives for enterprises, SMEs, and Fortune 500 companies, including WordPress, Chalhoub Group, Greif, Player's Health, Myso Finance, and others.

We are looking for an experienced Frontend Developer with strong expertise in React and TypeScript to join our team and contribute to the development of a complex frontend application.

This is a full-time, fixed-term contract for 4 months, with the possibility of extension based on project needs and mutual agreement.

What you will do:

• Develop and maintain a complex frontend application using React and TypeScript.
• Work with an existing codebase and established application architecture.
• Build reusable, maintainable, and scalable UI components.
• Develop complex forms and validation flows using React Hook Form and Zod.
• Work with data-heavy interfaces, tables, visualizations, and interactive UI components.
• Collaborate with the team to implement new functionality and improve existing features.

Maintain code quality and follow established development practices.

What we are looking for:

• Strong commercial experience with React and TypeScript.
• Experience building complex frontend applications.
• Solid understanding of component architecture and reusable UI components.
• Experience working with React Hook Form and Zod for forms and validation.
• Ability to confidently work with an existing codebase and understand established architecture.
• Hands-on experience with Redux Toolkit.
• Experience with SCSS Modules.
• Good understanding of modern frontend development practices.
• English level: Upper-Intermediate (B2) or higher.

Tech stack:
React, TypeScript, Redux Toolkit, React Hook Form, Zod, SCSS Modules, Radix UI, TanStack Table / Virtual, React Flow, Recharts, i18next.

Collaboration format:

• Full-time, contract-based cooperation.
• Initial contract duration: 4 months, with the possibility of extension.
• Fully remote.

Hiring process:
Recruiter interview → Test Assignment → Technical Interview → Final Decision.
 

We’re hiring: Landing Page & Frontend Specialist

📍 Valencia, Spain | Full-time | On-site

We’re looking for a creative landing page and frontend specialist to create interactive HTML content optimized for mobile devices and focused on conversion.

The candidate should be able to turn product information into an attractive visual customer journey, implement designs using HTML, CSS and JavaScript, and integrate analytics, APIs, short links and e-commerce functionality.

Requirements:

• Experience creating landing pages

• Strong knowledge of HTML, CSS and JavaScript

• Understanding of CRO (Conversion Rate Optimization)

• Experience with responsive and mobile-first design

• Ability to structure product information into a clear and conversion-focused customer journey

• Experience integrating analytics, APIs and e-commerce functionality

• Ability to work independently and propose solutions

We’re looking for someone who combines creativity, frontend skills and a strong understanding of conversion.

About the Company
 

BITTE is a growing e-commerce brand operating in the Health & Wellness space in the U.S. market.
 

Our main product is a functional Soursop Bitter Shot made with soursop and botanicals, designed to support digestion, gut health, liver function, and overall wellness.
 

As the brand continues to grow, we are expanding our team and building strong internal processes to support further growth.

To support this growth, we are looking for a Shopify Technical Specialist who will be responsible for configuring, optimizing, and maintaining our Shopify store while ensuring a seamless customer experience.
 

About the Role
 

As a Shopify Technical Specialist, you will be responsible for configuring, optimizing, and maintaining our Shopify store to ensure smooth operations and an excellent user experience.
 

You will play a key role in store setup, technical improvements, and UX optimization, helping us scale our e-commerce operations efficiently.
 

Expect diverse technical challenges, cross-functional collaboration, and opportunities to grow your Shopify expertise while working with a fast-growing brand.
 

Who We’re Looking For
 

- Structured Approach
You can organize processes and keep operations under control.

- Technical Expertise
You have strong hands-on experience with Shopify, including store setup, theme customization, integrations, and technical optimization.

You are comfortable working with Liquid, HTML, CSS, and JavaScript and can independently handle technical changes and troubleshoot Shopify issues.

Experience with GA4, GTM, Triple Whale, Recharge, Klaviyo, Zendesk, or BigQuery is a strong advantage.

- Proactive Mindset
You don't wait for instructions - you identify problems and implement effective solutions independently.

- Results-Oriented
You focus on ensuring the website runs smoothly, efficiently, and maximizes conversions.

- Attention to Detail
You notice small details, work with precise data, and constantly look for ways to improve processes.

Your Responsibilities
 

Product & Content Management

• Create and edit product listings
• Manage product variations, inventory, and pricing
• Organize collections
• Maintain the Shopify blog
• Optimize landing pages for promotions

Design & UX Optimization

• Customize Shopify themes and templates
• Optimize layouts using HTML/CSS/JS
• Install and test Shopify apps
• Improve site structure and UX

Order & Customer Management

• Process orders and track order statuses
• Manage returns
• Handle customer inquiries and reviews

Payments & Shipping

• Configure payment gateways
• Optimize shipping processes
• Configure tax settings

Marketing & Promotions

• Implement SEO optimizations
• Manage ad integrations and improve site speed
• Support email marketing automation
• Set up and monitor promotions
• Collect reviews and UGC

Technical Maintenance

• Monitor website performance and updates
• Maintain security and integrations
• Manage backups

Analytics & Reporting

• Track sales, conversions, and KPIs
• Analyze ad campaigns and promotions
• Prepare reports

Collaboration with Teams & Partners

• Work with marketing, logistics, and accounting teams
• Coordinate with agencies, freelancers, and suppliers

Documentation & SOPs

• Develop and maintain SOPs
• Audit and update legal documents when necessary

It’s a Plus If You Have
 

• Experience with Shopify Plus, Metafields, Metaobjects, or checkout customization
• Experience with subscription models and LTV analytics
• Experience integrating Shopify with marketplaces
• Knowledge of multi-language and multi-currency Shopify setups

What We Offer
 

• Competitive salary
• Fully remote work with a flexible schedule
• Opportunity to collaborate with a passionate and dynamic team
• Cross-functional experience across different projects
• Supportive, friendly team atmosphere

You'll own the interface that turns raw medical data into something a clinic manager can actually act on. Today most of that data lives in exports, internal reports and half-built screens - the product works, but the front-end has grown faster than it was designed. Your job is to build and clean up the part users touch: dashboards, patient and claims tables, filters, charts, reports.

This is a hands-on product role, not a lead role. You own your tasks end to end, architecture decisions are made together with the CTO.

About the company
A European product company building a data and analytics platform for the healthcare sector - clinics, medical networks and insurers use it to see what is happening with their patients, costs and operations in one place.

• On the market since 2022
• Team of 11-50 people
• Fully remote engineering team [to be confirmed]
• Product company, no outsourcing or client rotation

What you'll do

• Build and maintain front-end features of the platform in React + TypeScript
• Develop data-heavy UI: dashboards, charts, large tables, filters, export and reporting screens
• Integrate the front-end with backend APIs, handle async data, caching and error states 
• Turn Figma designs into clean, reusable components
• Use AI coding tools (Claude Code and similar) as part of your daily workflow
• Cover your code with tests and take part in code review
• Work directly with the CTO and the designer to clarify requirements before you build
• Take a task from description to production and keep it stable afterwards

Who we're looking for
Must have:

• 3-5 years of commercial experience with React
• Strong JavaScript and TypeScript
• Practical experience with state and server data management (React Query / Redux Toolkit / Zustand - any of them)
• Experience integrating REST APIs and building complex forms and data tables
• Experience with charts and data visualization libraries (Recharts, Chart.js, D3-based, or similar)
• Daily use of AI coding assistants in real work, with hands-on experience of Claude Code
• English at B2+ - you will talk to the CTO and the team directly, without a translator
• Ability to run your own tasks without daily check-ins, and to ask questions early when something is unclear

Nice to have:

• Experience connecting AI tools to external systems
• Figma-to-code integrations or similar
• Background in healthcare, medtech or fintech - any domain with strict data rules (GDPR, HIPAA, FHIR/HL7)
• Next.js, testing (Jest, React Testing Library, Playwright)
• Experience working with design systems

Soft skills:

• Ownership - the team is small, and nobody will chase you for status updates
• Clear written communication - most of the work happens async, across time zones
• Attention to data correctness - a wrong number on a medical dashboard is not a cosmetic bug

Conditions

• Remote, flexible working hours
• 29 days of PTO (18 working days per year plus all national holidays)
  10 paid sick days
• Free English classes with native speakers or Ukrainian teachers
• People-first management, minimal bureaucracy