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Humareso logo
Humareso

Empowering People. Elevating Business.

Senior Front-End Engineer, React

Frontend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 11-50Since 2012H1B No SponsorCompany SiteLinkedIn

Location

United States

Posted

6 days ago

Salary

$150K - $200K / year

Seniority

Senior

Bachelor Degree5 yrs expEnglishApolloGraphQLJavaScriptReactTypeScriptGo

Job Description

Senior Front-End Engineer, React

Humareso

• Design, develop, and maintain modern web and mobile user interfaces using React and related front-end technologies. • Build reusable, scalable, and maintainable component architectures that support rapid product development. • Collaborate with product managers, designers, and engineers to deliver new features and enhancements across multiple applications. • Develop responsive and performant user experiences that function seamlessly across browsers and devices. • Contribute to architectural decisions, technical design discussions, and code reviews. • Troubleshoot and resolve complex front-end issues involving performance, scalability, state management, and user experience. • Work with GraphQL and API integrations to connect front-end applications with backend services. • Contribute to Storybook-based component development and UI documentation. • Partner with backend engineers while also having the ability to make changes within the Go (Golang) codebase when necessary.

Job Requirements

  • 5+ years of professional software engineering experience with a strong focus on front-end development.
  • Deep expertise in JavaScript, including a strong understanding of:
  • o Asynchronous programming
  • o Promises and async/await
  • o Event loop architecture
  • o Closures and scope
  • o Browser rendering and performance optimization
  • Strong experience developing applications with React.
  • Experience building and consuming GraphQL APIs.
  • Strong understanding of HTML5, CSS3, TypeScript, and modern front-end development practices.
  • Experience building scalable component-based architectures.
  • Ability to debug and optimize complex front-end applications.
  • Strong understanding of software engineering fundamentals, design patterns, and maintainable code practices.
  • Excellent communication and collaboration skills.
  • Preferred Qualifications
  • Experience with Golang (Go).
  • Experience with Apollo GraphQL.
  • Experience with Storybook or similar component management tools.
  • Experience building mobile applications or responsive mobile-first user experiences.
  • Experience with Canvas-based visualizations and interactive UI development.
  • Experience working within Agile product development environments.

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Front End Web and Mobile Software Developer

Coloplast

Coloplast is a global medical device company dedicated to developing products and services that make life easier for people with intimate healthcare needs. Founded in 1957, the com

Title: Front End Web and Mobile Software Developer Location: United States Job Description: Requisition ID 60625 - United States - Information Technology - ComfortMedical We are seeking a Front-End Web & Mobile Developer to design and deliver secure, responsive and scalable web/mobile experiences. This role plays a crucial role in designing, developing, and maintaining digital customer experience platforms that enhance patient care, improve operational efficiency, and adhere to strict healthcare regulations. In this role, you will focus on Optimizely CMS, modern JavaScript frameworks, and cross-platform mobile development, with a strong emphasis on secure authentication and API integration using JWT-based tokenization and Azure Entra External ID. Major Areas of Accountability Web, CMS & Front-End Development - Develop and maintain Optimizely CMS (Episerver) solutions, including reusable components, page templates, and content-driven experiences. - Build responsive, accessible, and high-performance user interfaces using JavaScript (ES6+), HTML5, and CSS3. - Implement and maintain front-end applications using React, Vue.js, and/or Angular. - Ensure cross-browser compatibility and mobile-first design principles. - Microsoft .NET Razor Pages, MVC, MVVM patterns Mobile Development - Build cross-platform mobile applications using React Native or other frameworks. - Share design patterns and business logic between web and mobile where appropriate. - Collaborate with designers and product teams to deliver intuitive mobile experiences. Security & Identity - Implement JWT-based authentication and authorization for secure front-end and mobile applications. - Integrate applications with Azure Entra External ID (CIAM) for external user identity, authentication, and authorization flows. - Secure API communication using access tokens, refresh tokens, and role-based or claims-based access control. - Apply front-end security best practices to protect against common vulnerabilities (XSS, CSRF, token leakage). - Lead the team in adhering to strict healthcare regulations, including HIPAA, and take a proactive approach to conducting regular security audits to identify and address potential vulnerabilities. - Conduct regular security audits to identify and address potential vulnerabilities API Integration & Tooling - Consume and integrate RESTful APIs and services securely from front-end and mobile applications. - Use Postman to test, validate, and debug APIs, authentication flows, and token-based security. - Collaborate with back-end teams to define API contracts and error-handling standards. Quality, Performance & Collaboration - Optimize applications for performance, accessibility (WCAG), SEO, and scalability. - Write clean, maintainable, and well-documented code. - Participate in code reviews, sprint planning, and architectural discussions. - Troubleshoot and resolve front-end, mobile, and API-related issues across environments. - Follow internally established processes for software development. - Communicate effectively with management, teammates and other departments to source and collect data - Support the team culture within the organization by adhering to policies, practices, and the Company’s mission statement. - Drive the creation and maintenance of comprehensive documentation for advanced software architecture, design principles, and deployment processes. - Provide expert-level troubleshooting and resolution for software issues, demonstrating a deep understanding of system architecture and dependencies - of Ethics on Interactions with Healthcare Professionals, and company policies. - Comfort Medical employees are required to conduct business to the highest ethical and professional standards; comply with applicable laws and regulations, the Advamed Code of Ethics on Interactions with Healthcare Professionals, and company policies. - Other job duties as assigned Basic Qualifications - Bachelor’s degree in Computer Science, Information Technology, or a related field. - Minimum of 4 years as a Front-End web and mobile developer building responsive web and mobile solutions. - Strong problem-solving skills and ability to translate business requirements into technical solutions. - Demonstrated ability to apply SOLID principles to design and develop maintainable and scalable software. - Experience working with Agile tools and frameworks like Scrum, Kanban, or Lean. - Experience with the following platforms: - - Optimizely CMS - Vue.js and at least one additional framework (React or Angular) - Building mobile applications with React Native - Implementing JWT authentication and securing API calls - Working knowledge of Azure Entra External ID (Azure AD B2C / CIAM concepts) - Postman for API testing and validation - REST APIs and modern authentication flows (OAuth 2.0 / OpenID Connect) - Git and CI/CD pipelines - Microsoft.NET and Razor Pages Preferred Qualifications - Experience with Optimizely experimentation, personalization, or A/B testing - Proficiency in TypeScript, Javascript, JQuery - Experience with headless or composable CMS architectures - Familiarity with front-end security standards and OWASP best practices - Experience with cloud platforms such as Microsoft Azure - Understanding performance optimization and monitoring tools such as Azure Insights - Experience mentoring and working with Backend development on front end specifications - Comfortable working with diverse teams and fostering a positive and productive work environment - Ability to provide samples or portfolio of real-world front-end web or mobile development. At Coloplast, we believe in recognizing and rewarding the contributions of our employees. Our total rewards package is designed to support your well-being, foster your professional growth, and ensure a healthy work-life balance. Here is some of what you can expect: - Health and Wellness: Comprehensive medical, dental, and vision insurance plans to keep you and your family healthy. Plus, access to company sponsored wellness programs and mental health resources, paid leave of absence for qualifying events and generous paid parental leave for both birthing and non-birthing parents. - Financial Security: A competitive 401(k) plan with company match that vest immediately, financial planning services to help you secure your future, and corporate discount programs for goods and services. - Work-Life Balance: Generous paid time off, flexible work hours, and flexible work arrangement options to help you balance your personal and professional life may be available. - Professional Development: Opportunities for continuous learning and career advancement through training programs, mentorship, and tuition reimbursement. - Recognition and Rewards: Recognition programs to celebrate achievements and contributions, including peer recognition, bonuses, awards, and special events. - Community and Culture: A supportive work environment where everyone feels valued and has a sense of belonging. Participate in team-building activities, volunteer opportunities, and company-sponsored events. Sustainability strategy that outlines our ambitions for running our company in a more sustainable way. - Competitive Compensation: The compensation range for this position is $81,655 - $122,482. Actual compensation is influenced by a variety of factors including but not limited to skills, experience, qualifications, and geographic location. Hired candidates may be eligible to receive additional compensation in the form of bonuses and/or incentives. Comfort Medical provides an extensive selection of name brand catheter and ostomy supplies to thousands of customers nationwide. Our attention to detail, unmatched customer service, and dedication to helping our customers live happier, healthier lives are just a few of the many reasons we are one of the fastest growing catheter and ostomy supply companies in the nation!​ Comfort Medical employees are required to conduct business to the highest ethical and professional standards; comply with applicable laws and regulations, the Advamed Code of Ethics on Interactions with Healthcare Professionals, and company policies. 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Software Engineer II - Frontend

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Scribd is a social reading and publishing company. Founded in March 2007 and headquartered in San Francisco, Scribd boasts over 70 million readers every month.

Title: Software Engineer II (Frontend) Location San Francisco; Atlanta; Austin; Boston; Chicago; Dallas; Denver; Houston; Jacksonville; Los Angeles; Mexico City; Miami; New York City; Ottawa; Phoenix; Portland; Sacramento; Salt Lake City; San Diego; Seattle; Toronto; Vancouver; Washington, D.C. Employment Type Full time Department Engineering Job Description: Scribd, Inc. is on a mission to advance human understanding. Our four products — Scribd®, Slideshare®, Everand™, and Fable — help billions of people across the globe move beyond access and into insight, application, and expertise. Culture at Scribd, Inc. We support a culture where our employees can be real and be bold; where we debate and commit as we embrace plot twists; and where every employee is empowered to take action as we prioritize the customer. We believe the best work happens when individual flexibility is balanced with meaningful community connection. Scribd Flex empowers employees to choose the workstyle and location that support their best performance, while committing to intentional in-person moments that strengthen collaboration and culture. Occasional in-person attendance is required for all Scribd, Inc. employees, regardless of location. So what are we looking for in new team members? At Scribd, Inc., we hire for “GRIT.” Traditionally defined as the intersection of passion and perseverance toward long-term goals, GRIT reflects the mindset we expect from every employee. For us, it also serves as a practical framework for how we work: setting and achieving Goals, delivering Results within your role, contributing Innovative ideas and solutions, and strengthening the broader Team through collaboration and attitude. This posting reflects an approved, open position within the organization. About Our Team The Signup & Activation team at Scribd is responsible for creating the critical first experiences that convert visitors into engaged users across our brands: Scribd, Everand, and Slideshare. We own the complete user journey from initial discovery through signup, onboarding, and early activation moments. As part of the Growth Engineering organization, our work centers on building high-converting, performant, and delightful web experiences that drive user acquisition and retention. We focus on experimentation-driven development, leveraging A/B testing, personalization, and data-informed design to continuously optimize conversion rates and user engagement. The team values collaboration, pragmatic problem-solving, and a culture of technical excellence. About the Role We are looking for a talented Frontend Software Engineer II to join our Signup & Activation team. In this role, you will help build and optimize the frontend experiences that power our user acquisition and activation funnels. You will partner with product managers, designers, data analysts, and fellow engineers to deliver high-quality solutions that enhance conversion rates, reduce friction, and create engaging first impressions. You'll be supported by senior engineers while owning well-defined projects or features from design through implementation. This role is a strong fit for someone eager to deepen their technical expertise in growth engineering, expand their impact on Scribd's user acquisition strategy, and grow toward increased autonomy in frontend development. Our cross-functional squad involves close collaboration with other engineering teams, designers, and product managers, so accountability and clear communication are paramount. While your primary focus will be on the frontend, you'll work alongside backend engineers to build complete product experiences powered by data and personalization. What We're Looking For - A motivated engineer who takes pride in writing clean, maintainable code and is eager to grow their craft - A collaborator who enjoys working across disciplines to deliver well-scoped features that balance technical quality with business needs - A customer-focused problem-solver who cares about usability and building intuitive, accessible experiences - A growth-minded contributor who actively seeks feedback and continuously learns from peers, mentors, and new technologies - Someone curious about growth engineering who wants to understand how frontend experiences drive business metrics Required Qualifications - 4+ years of professional software development experience building and shipping customer-facing frontend applications - Strong proficiency in modern TypeScript & JavaScript, especially React - Experience with modern JavaScript frameworks (Next.js preferred) - Familiarity with Ruby on Rails and its ecosystem — comfortable contributing in a Rails-backed product environment - Solid grasp of modern frontend fundamentals: state management, component architecture, accessibility, testing, and UI quality - Experience integrating frontends with APIs (REST, GraphQL a plus) - Familiarity with experimentation, A/B testing, and personalization systems - Ability to build interactive experiences with attention to detail and UX polish - Strong written and verbal communication skills: as a remote company, we rely heavily on documentation and clear communication - Experience working in a codebase with shared patterns (monorepos, shared UI libraries, or platform constraints) and collaborating across teams - Values craftsmanship and empathy while writing maintainable, thoughtful code - AI Fluency: Comfortable using AI tools (Claude Code, Codex, Cursor, etc.) to accelerate development, debug issues, and explore solutions Nice to Have - Exposure to Growth Engineering concepts (e.g., signup optimization, conversion funnels, user lifecycle engagement) - Exposure to backend technologies like Redis, Kafka, MySQL, or Terraform - A thoughtful approach to experimentation that balances rapid iteration with code quality - Experience with shared component libraries or design systems - Experience with CI/CD pipelines and automated deployment workflows At Scribd, Inc. your base pay is one part of your total compensation package and is determined within a range. Our pay ranges are based on the local cost of labor benchmarks for each specific role, level, and geographic location. San Francisco is our highest geographic market in the United States. In the state of California, the reasonably expected salary range is between $125,000 [minimum salary in our lowest geographic market within California] to $195,000 [maximum salary in our highest geographic market within California]. In the United States, outside of California, the reasonably expected salary range is between $103,000 [minimum salary in our lowest US geographic market outside of California] to $185,500 [maximum salary in our highest US geographic market outside of California]. In Canada, the reasonably expected salary range is between $131,000 CAD[minimum salary in our lowest geographic market] to $173,500 CAD[maximum salary in our highest geographic market]. We carefully consider a wide range of factors when determining compensation, including but not limited to experience; job-related skill sets; relevant education or training; and other business and organizational needs. The salary range listed is for the level at which this job has been scoped. In the event that you are considered for a different level, a higher or lower pay range would apply. This position is also eligible for a competitive equity ownership, and a comprehensive and generous benefits package. Working at Scribd, Inc. Are you currently based in a location where Scribd, Inc. can employ you? Employees must have their primary residence in or near one of the following cities. This includes surrounding metro areas or locations within a typical commuting distance: United States: Atlanta | Austin | Boston | Dallas | Denver | Chicago | Houston | Jacksonville | Los Angeles | Miami | New York City | Phoenix | Portland | Sacramento | Salt Lake City | San Diego | San Francisco | Seattle | Washington D.C. Canada: Ottawa | Toronto | Vancouver Mexico: Mexico City Benefits at Scribd, Inc. - Scribd Flex (flexible work model) - Comprehensive health, dental, and vision coverage - Mental health support and disability coverage - Generous paid time off, including vacation, sick time, holidays, winter break, volunteer time, and sabbaticals - Paid parental leave and family support benefits - Retirement matching and employee equity - Learning and development programs and professional growth opportunities - Wellness and home office stipends - Complimentary access to the Scribd, Inc. suite of products - Enterprise access to leading AI tools Get to Know Scribd, Inc. About Scribd, Inc. Life at Scribd, Inc. If you apply for a job with Scribd or otherwise engage with us in connection with employment (including as an employee, contractor, or other personnel), the personal information we process in that context is subject to our Employee and Applicant Privacy Policy, which is available here. Scribd, Inc. is committed to equal employment opportunity regardless of race, color, religion, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or any other characteristic protected by law. We encourage people of all backgrounds to apply, and believe that a diversity of perspectives and experiences create a foundation for the best ideas. Come join us in building something meaningful.

Georgia + 14 moreAll locations: Georgia | Texas | Massachusetts | Colorado | Illinois | Florida | California | New York | Arizona | Oregon | Utah | Washington | District Of Columbia | Canada | Mexico
$125K - $195K / year