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Ruby Labs

Lead Full-Stack Developer

Sorry, this job was removed at 04:06 p.m. (PST) on Monday, Jul 28, 2025
Remote
15 Locations
Remote
15 Locations

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The Senior Fullstack Engineer will lead product areas, build software solutions, and improve client-facing applications while ensuring a great user experience.
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About us

At WinTech, we are at the forefront of innovation, crafting cutting-edge consumer products that shape the future. Our diverse portfolio spans the health, education, and entertainment sectors, offering exciting opportunities to make a real impact. Our dynamic teams are the driving force behind our success, and we’re always on the lookout for passionate individuals eager to join us on this journey of transformation.

About the role

We are seeking an experienced Lead Full-Stack React (Next.js) Developer to lead the design, development, and optimization of scalable web applications with a focus on both front-end and back-end technologies. As the technical leader, you will oversee the full development lifecycle, driving architectural decisions, ensuring code quality, and mentoring a team of developers. In this role, you will work closely with product managers, engineers, and designers to deliver reliable, high-performance, and scalable software solutions aligned with the company's mission and vision.

The successful candidate will have a strong background in Next.js and React on the front end, combined with expertise in Node.js on the back end. You will be responsible for creating seamless and high-performing user experiences while also managing robust server-side logic. This role will require you to be hands-on with both front-end and back-end technologies, and you’ll have the opportunity to shape the future architecture of the product while fostering a culture of innovation and continuous improvement.

Key Responsibilities
  • Lead the development of full-stack web applications using Next.js, React, TypeScript, and Node.js.

  • Architect and manage both front-end and back-end systems, ensuring seamless integration between the two.

  • Design high-performance, SEO-optimized user interfaces while maintaining scalability on the server side.

  • Take ownership of code quality and ensure adherence to best practices such as DRY, SOLID, and YAGNI principles.

  • Collaborate with product managers to convert business requirements into scalable and maintainable technical solutions.

  • Mentor and guide a team of full-stack developers, providing code reviews and architectural guidance.

  • Manage and optimize RESTful APIs and database schemas for performance and scalability.

  • Implement CI/CD pipelines and manage deployments on platforms such as Vercel and AWS.

  • Proactively identify and address areas for improvement in the codebase, infrastructure, and team processes.

  • Oversee and participate in the design and review of software architecture, ensuring flexibility for future growth.

  • Facilitate technical decision-making and ensure alignment with the company's technical strategy.

Qualifications
  • 6+ years of professional software development experience, with a strong focus on full-stack development.

  • Expertise in Next.js, React, Node.js, and TypeScript for building both front-end and back-end applications.

  • Strong knowledge of server-side rendering, static site generation, and API integration.

  • Experience with RESTful API design, database management, and server-side logic implementation.

  • Proven leadership experience in mentoring developers and driving high-performance teams.

  • Deep understanding of front-end performance optimization, including SEO best practices.

  • Familiarity with deployment platforms like Vercel, AWS, and containerization technologies like Docker.

  • Strong problem-solving skills and ability to lead architecture discussions.

  • Excellent communication and collaboration skills, with experience working in remote or distributed teams.

  • Familiarity with agile methodologies and project management tools for tracking and delivering high-quality software.

  • Experience with DevOps practices and managing CI/CD pipelines.

Nice to have
  • Familiarity with modern design systems and libraries such as Next UI or Ant Design.

  • Experience with mobile-first development and frameworks like React Native.

  • Understanding of React Query or similar data-fetching libraries.

Location

WinTech operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Benefits

Discover the perks of being part of our vibrant team! We offer:

  • Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.

  • Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.

  • Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.

  • Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.

  • Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1dHF4ctKlez75whdn-ybUwP5d5Wr0BdwVrorrm_fM40Q/preview

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

  • Recruiter Screening (40 minutes)

  • Technical Interview (90 minutes)

  • Final Interview (60 minutes)

Life at WinTech

At WinTech, you'll join a supportive and collaborative team passionate about excellence and being industry leaders. Our innovative work environment drives impactful business results as we challenge ourselves and elevate each other to achieve new heights.

All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

#Li-Remote

HQ

Ruby Labs San Francisco, California, USA Office

353 Kearny St, San Francisco, California, United States, 94108

What you need to know about the San Francisco Tech Scene

San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.

Key Facts About San Francisco Tech

  • Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Google, Apple, Salesforce, Meta
  • Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
  • Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
  • Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine

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