Sr Front-end Engineer Job at Randstad (Tokyo)

Sr Front-end Engineer

Our Stays & Packages team focuses specifically on accommodation and bundled trav...

Location

United States

Salary:

230000.00 - 330000.00 USD / Year

Hopper

Expiration Date

Until further notice

Requirements

Deep expertise in React with modern compiler-driven patterns (functional components, hooks, performance optimizations, server-side rendering, hydration, and advanced state management)
Proficiency in TypeScript, with experience developing and maintaining enterprise-scale applications
Advanced CSS knowledge (Tailwind, SCSS, CSS-in-JS, animations, and handling browser quirks)
Familiarity with contemporary frontend tooling (e.g., React Query/TanStack ecosystem, Tailwind or design-token-based styling, modern build tools like Vite)
Solid frontend architecture fundamentals: performance, accessibility, responsive design, testing, and maintainability
Experience optimizing frontend performance (lazy loading, code-splitting, caching strategies, Lighthouse optimizations, etc.)
Experience working on complex product flows such as e-commerce, travel, marketplace, or fintech applications
Ability to balance shipping product features with long-term platform thinking in multi-brand or white-label environments
Familiarity with SSR and static site generation (e.g., Next.js) for SEO-friendly experiences
A passion for writing testable code knowing what to test, what not to test, and what kinds of tests matter in front-end applications

Job Responsibility

Work with a group of top-tier engineers in a low-process environment powered by trust and autonomy
Drive decisions and consensus asynchronously with thoughtful documentation
Ship fast. Learn fast. Repeat. Build new features from top to bottom, from UX to database
Architect scalable front-end solutions that allow us to efficiently launch new portals
Work directly with PMs and business partners to help define and refine our roadmap
Collaborate cross-functionally with a diverse group of people, giving and receiving feedback for growth

What we offer

Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages
Unlimited PTO
Carrot Cash travel stipend
Access to co-working space on demand through FlexDesk AND Work-from-home stipend
Very generous parental leave, much above industry standards
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership
Small, dynamic teams = massive impact
100% employer paid Medical, Dental and Vision coverage for employees
Access to Disability & Life insurance

Fulltime

Sr Front-end Engineer - LATAM Core

Join the Commerce team at Hopper Technology Solutions (HTS), the engine powering...

Location

Colombia , Cali; Medellin; Bogotá

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Exceptional Technical Craft: Expert-level proficiency in React and TypeScript, with a deep understanding of component architecture, state management, and web performance
Product-Minded Engineering: You anchor your conception of "quality" in the customer experience and understand how to translate business ambiguity into clear, scalable code
Iterative DNA: A natural drive to deliver results fast. You know how to distinguish between "must-be-perfect" core logic and features that can be evolved through data-driven iteration
Systems Thinking: Experience (or a hunger to learn) managing complex frontends within a distributed systems environment, ensuring reliability for high-stakes partner integrations

Job Responsibility

Design & Build at Scale: Architect and review code for world-class, multi-tenant travel portals that balance reusable white-label foundations with partner-specific customizations
Autonomous Execution: Lead initiatives from concept to deployment. Our group operates with a low-meeting culture, emphasizing deep work, strong alignment, and asynchronous decision-making to maximize engineering velocity
Product Innovation: Collaborate side-by-side with Product Managers and Designers to explore engineering improvements that enhance the user experience and drive partner growth
Cross-Functional Impact: Work seamlessly across Hopper’s ecosystem—integrating with our Scala-based fintech services and GCP infrastructure to bring sophisticated travel features to market

What we offer

Well-funded and proven startup with large ambitions, competitive salary and upsides of pre-IPO equity packages
Hopper offers group medical and dental insurance to full-time employees
Hopper offers life insurance with short term and long term disability coverage
All employees and dependents have access to telemedicine services, anytime, anywhere
Please ask us about our very generous parental leave, much above industry standards!
Unlimited PTO
Carrot Cash travel stipend
Flexdesk Access Pass & Work-from-home stipend
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership

Fulltime

Sr Front-end Engineer - LATAM Core

Join the Commerce team at Hopper Technology Solutions (HTS), the engine powering...

Location

Uruguay

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Exceptional Technical Craft: Expert-level proficiency in React and TypeScript, with a deep understanding of component architecture, state management, and web performance
Product-Minded Engineering: You anchor your conception of 'quality' in the customer experience and understand how to translate business ambiguity into clear, scalable code
Iterative DNA: A natural drive to deliver results fast. You know how to distinguish between 'must-be-perfect' core logic and features that can be evolved through data-driven iteration
Systems Thinking: Experience (or a hunger to learn) managing complex frontends within a distributed systems environment, ensuring reliability for high-stakes partner integrations

Job Responsibility

Design & Build at Scale: Architect and review code for world-class, multi-tenant travel portals that balance reusable white-label foundations with partner-specific customizations
Autonomous Execution: Lead initiatives from concept to deployment. Our group operates with a low-meeting culture, emphasizing deep work, strong alignment, and asynchronous decision-making to maximize engineering velocity
Product Innovation: Collaborate side-by-side with Product Managers and Designers to explore engineering improvements that enhance the user experience and drive partner growth
Cross-Functional Impact: Work seamlessly across Hopper’s ecosystem—integrating with our Scala-based fintech services and GCP infrastructure to bring sophisticated travel features to market

What we offer

Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages
Carrot Cash travel stipend
Flexdesk All Access Pass & Work-from-home stipend
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership
Small, dynamic teams = massive impact

Fulltime

Sr Front-end Engineer - LATAM Core

Join the Commerce team at Hopper Technology Solutions (HTS), the engine powering...

Location

Brazil , Remote; Rio de Janeiro; São Paulo; Brasilia; Belo Horizonte

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Exceptional Technical Craft: Expert-level proficiency in React and TypeScript, with a deep understanding of component architecture, state management, and web performance
Product-Minded Engineering: You anchor your conception of "quality" in the customer experience and understand how to translate business ambiguity into clear, scalable code
Iterative DNA: A natural drive to deliver results fast. You know how to distinguish between "must-be-perfect" core logic and features that can be evolved through data-driven iteration
Systems Thinking: Experience (or a hunger to learn) managing complex frontends within a distributed systems environment, ensuring reliability for high-stakes partner integrations

Job Responsibility

Design & Build at Scale: Architect and review code for world-class, multi-tenant travel portals that balance reusable white-label foundations with partner-specific customizations
Autonomous Execution: Lead initiatives from concept to deployment. Our group operates with a low-meeting culture, emphasizing deep work, strong alignment, and asynchronous decision-making to maximize engineering velocity
Product Innovation: Collaborate side-by-side with Product Managers and Designers to explore engineering improvements that enhance the user experience and drive partner growth
Cross-Functional Impact: Work seamlessly across Hopper’s ecosystem—integrating with our Scala-based fintech services and GCP infrastructure to bring sophisticated travel features to market

What we offer

Well-funded and proven startup with large ambitions, competitive salary and the upsides of pre-IPO equity packages
Carrot Cash travel stipend
Hopper will cover 100% of the employee premiums for EOR-offered health, dental, life and short term disability insurances with SulAmerica
Hopper offers employees in Brazil monthly meal vouchers
Very generous parental leave
Flexdesk All Access Pass & Work-from-home stipend
Entrepreneurial culture where pushing limits and taking risks is everyday business
Open communication with management and company leadership
Small, dynamic teams = massive impact

Fulltime

Sr Front-end Engineer - LATAM Core

Join the Commerce team at Hopper Technology Solutions (HTS), the engine powering...

Location

Mexico , Remote; Mexico City; Guadalajara; Monterrey

Salary:

Not provided

Hopper

Expiration Date

Until further notice

Requirements

Exceptional Technical Craft: Expert-level proficiency in React and TypeScript, with a deep understanding of component architecture, state management, and web performance
Product-Minded Engineering: You anchor your conception of "quality" in the customer experience and understand how to translate business ambiguity into clear, scalable code
Iterative DNA: A natural drive to deliver results fast. You know how to distinguish between "must-be-perfect" core logic and features that can be evolved through data-driven iteration
Systems Thinking: Experience (or a hunger to learn) managing complex frontends within a distributed systems environment, ensuring reliability for high-stakes partner integrations

Job Responsibility

Design & Build at Scale: Architect and review code for world-class, multi-tenant travel portals that balance reusable white-label foundations with partner-specific customizations
Autonomous Execution: Lead initiatives from concept to deployment. Our group operates with a low-meeting culture, emphasizing deep work, strong alignment, and asynchronous decision-making to maximize engineering velocity
Product Innovation: Collaborate side-by-side with Product Managers and Designers to explore engineering improvements that enhance the user experience and drive partner growth
Cross-Functional Impact: Work seamlessly across Hopper’s ecosystem—integrating with our Scala-based fintech services and GCP infrastructure to bring sophisticated travel features to market

What we offer

Well-funded and proven startup with large ambitions, competitive salary and upsides of pre-IPO equity packages
Hopper will offer and cover 100% of employee premiums for private Major & Minor Medical insurances
Hopper supplements Social Security coverage for liability benefits with Private insurance to cover you and your loved ones from Day 1
Hopper provides employees with a tax-advantageous and secured savings vehicle and matches up to a percentage of employee contributions
Please ask us about our very generous parental leave, much above industry standards!
Unlimited PTO
Flexdesk coworking All Access Pass AND Work-from-home stipend
Carrot Cash travel stipend
Hopper offers a monthly subsidy to pay for teleworking utilities
An entrepreneurial culture where pushing limits and taking risks is everyday business

Fulltime

Sr Front-end Engineer - HTS Stays & Packages

Our Stays & Packages team focuses specifically on accommodation and bundled trav...

Location

Canada , Vancouver; Toronto

Salary:

200000.00 - 300000.00 CAD / Year

Hopper

Expiration Date

Until further notice

Requirements

Deep expertise in React with modern compiler-driven patterns (functional components, hooks, performance optimizations, server-side rendering, hydration, and advanced state management)
Proficiency in TypeScript, with experience developing and maintaining enterprise-scale applications
Advanced CSS knowledge (Tailwind, SCSS, CSS-in-JS, animations, and handling browser quirks)
Familiarity with contemporary frontend tooling (e.g., React Query/TanStack ecosystem, Tailwind or design-token-based styling, modern build tools like Vite)
Solid frontend architecture fundamentals: performance, accessibility, responsive design, testing, and maintainability
Experience optimizing frontend performance (lazy loading, code-splitting, caching strategies, Lighthouse optimizations, etc.)
Experience working on complex product flows such as e-commerce, travel, marketplace, or fintech applications
Ability to balance shipping product features with long-term platform thinking in multi-brand or white-label environments
Familiarity with SSR and static site generation (e.g., Next.js) for SEO-friendly experiences
A passion for writing testable code knowing what to test, what not to test, and what kinds of tests matter in front-end applications

Job Responsibility

Work with a group of top-tier engineers in a low-process environment powered by trust and autonomy
Drive decisions and consensus asynchronously with thoughtful documentation
Ship fast. Learn fast. Repeat. Build new features from top to bottom, from UX to database
Architect scalable front-end solutions that allow us to efficiently launch new portals
Work directly with PMs and business partners to help define and refine our roadmap
Collaborate cross-functionally with a diverse group of people, giving and receiving feedback for growth

What we offer

Well-funded and proven startup with large ambitions, competitive salary and upsides of pre-IPO equity packages
Hopper covers 100% of the premiums for group insurance plan
Hopper offers life, short term and long term disability coverage
HSA that covers eligible medical and dental expenses
All employees and dependents have access to Dialogue’s telemedicine services, anytime, anywhere
All employees have access to an RRSP plan with automatic pre-tax withdrawals per pay
Very generous parental leave, much above industry standards
Unlimited PTO
Carrot Cash travel stipend
Access to co-working space on demand through FlexDesk AND Work-from-home stipend

Fulltime

Sr. Product Engineer (Front-End) - Trips Team

Our organizers use WeTravel to win travelers by creating beautiful proposals and...

Location

Netherlands , Amsterdam

Salary:

Not provided

WeTravel

Expiration Date

Until further notice

Requirements

7+ years of software engineering experience (ideally full-stack) with strong product ownership mindset
Proficiency in building consumer-facing user experiences at scale, and expertise with at least one modern web application framework, ideally React/React Native
Proficiency with building and maintaining component libraries and working with a design system
Have experience building applications working with distributed systems, microservices and event-driven architecture and demonstrate strong systems thinking and can design for scalability
Have experience with operating applications in production, monitoring, and on-call responsibilities
Have excellent communication skills and experience working in multicultural, distributed teams
Experience using AI assistants like Cursor, Claude Code or GitHub Copilot for code generation and testing
Have experience leading projects and mentoring other engineers

Job Responsibility

Lead and build features end-to-end: from reviewing user interviews and product design, through architection and building systems to deployment and monitoring in production
Partner closely with our product team to discover user problems and shape their solutions – creating a world class experience for our organizers and travelers
Write high-quality, maintainable code across both frontend (TypeScript/React) and occasionally backend (Ruby on Rails)
Ensure our services are always on by building resilient applications, ensuring they are well monitored and mitigating incidents as an on-call/incident responder
Mentor teammates and contribute to WeTravel’s engineering practices and excellence

What we offer

Competitive salary
Generous "Time to Recharge" policy - enjoy unlimited paid time off
Work remotely for a maximum of 4 weeks per calendar year
2-week cross-functional onboarding program
Cycle-to-work scheme (Swapfiets subscription) or commuting reimbursement
Tuesday team lunches and after-work social events
Beautiful office in central Amsterdam - rooftop garden and right by Rokin metro
Extensive paid family leave
Three paid volunteer days per year
Cutting-edge equipment and tools to set you up for success

Fulltime

Sr Associate Front End Engineer

Amgen is seeking a Sr Associate Software Engineer to contribute to designing, bu...

Location

India , Hyderabad

Salary:

Not provided

Amgen

Expiration Date

Until further notice

Requirements

Master’s degree and 3 to 5 years of Computer Science, IT or related field experience
Bachelor’s degree and 5 to 9 years of Computer Science, IT or related field experience
Diploma and 7 to 11 years of Computer Science, IT or related field experience
Hands-on front end development experience working in React and/or .Net Framework
Solid experience with React.js
Knowledge of component-based architecture and reusable UI patterns
Proficiency with HTML5, CSS3, and modern styling frameworks (Sass, Styled Components)
Experience with ASP.NET MVC / .NET Core for building and integrating UI components
Understanding of API integration (REST, GraphQL) with .NET backends
Ability to translate wireframes & mockups into pixel-perfect UIs

Job Responsibility

Design, build responsive, scalable, and user-friendly web applications using .Net, React, Javascript or HTML
Use .NET frameworks to integrate UI with back-end APIs/services
Develop Salesforce Lightning Web Components (LWC) and Visualforce pages for Salesforce UI customization
Leverage React for dynamic single-page applications (SPA)
Bridge UI between front-end frameworks such as React, .Net, JavaScript, HTML) and enterprise systems
Ensure smooth communication between different tech stacks using APIs, middleware, or microservices
Maintain modular, reusable, and testable code
Partner with back-end developers to define APIs and data contracts
Collaborate with QA engineers to ensure high test coverage and defect-free delivery
Implement data security and privacy measures to protect sensitive data

Select Country

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Requirements

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