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Unicity International

Senior Full Stack Engineer - US

This role is for a Senior Full Stack Engineer with 5+ years of experience in TypeScript/JavaScript, modern frameworks, and e-commerce integration. It offers a hybrid work location in Las Vegas, Provo, or Fort Lauderdale, with a permanent contract.
🌎 Country
United States
🏝️ Location
Hybrid
📄 Contract
Full-time
🪜 Seniority
Mid-Senior level
💰 Range
Unknown
💱 Currency
$ USD
💸 Pay
Unknown
🗓️ Discovered
August 23, 2025
📍 Location detailed
Provo, UT
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🧠 Skills
#Google Analytics #JavaScript #CSS #Performance Optimization
Role description
Unicity was founded with a bold mission to make healthy living a reality in an on-the-go world. Unicity's business model is person to person sales which has given a personal touch to our sales and growth. This position would be Hybrid in either Las Vegas, NV, Provo, UT, or Fort. Lauderdale, FL. Unicity is dedicated to developing innovative, science-based products and programs that promote metabolic health and improve the quality of life for people everywhere. For over 30 years, Unicity has been dedicated to developing high-quality products that contain the vital nutrients your body needs. With the proper process, cutting-edge technology, and a mission to Make Life Better, Unicity is paving the way for a better tomorrow. In addition to competitive pay we can offer: • Heath, Dental, Vision, Life and other benefits that begin within a month • Paid Parental Leave • Generous vacation allowance in addition to company paid holidays • 401(k) with company match • Substantial company product allowance • Reimbursement for internet, cell phone and gym/wellness activities The ideal Sr. Full Stack Engineer (frontend-heavy) will be: • A self starter who has an attention to detail • Able to take ownership of tasks, seeing them from start to finish • Able to work with minimal supervision • Able to write clean, concise code • Able to write unit tests • Able to troubleshoot and solve complex problems • Able to recommend and implement cloud-based solutions that will improve the stability and performance of our internal infrastructure • Proactive in identifying problems and have a willingness to fix them • Proactive in measuring the overall effectiveness of our systems and identify areas of improvement • Able to work with a variety of technologies • Able to design/architect systems that can be easily monitored • Able to work with others in a fast paced environment • Able to finish tasks on-time Key Areas of Responsibility: • Be involved and participate in the overall lifecycle of projects. • Help define and communicate technical and design requirements. • Design and implement high-quality solutions that will add business value. • Follow coding standards and guidelines. • Troubleshoot, debug, and test solutions. • Be accessible in the event of an emergency (when needed). • Provide training, help, and support to other team members. • Implement security and data protections. • Optimize code for maximum speed, scalability, and flexibility. • Stay up to date with current best practices, as well with new and emerging technologies. • Attend and participate in meetings and Agile ceremonies. • Collaborate closely with UX/UI designers to translate mock-ups into pixel-perfect, interactive experiences -Ensure cross-browser compatibility and mobile responsiveness across all supported devices Integrate third-party services such as payment gateways, analytics, and marketing tools • Conduct code reviews with emphasis on frontend best practices and performance optimization • Build and maintain reusable component libraries and design systems Requirements / Preferred Skills: • 5+ years working as a Full Stack Engineer in an Agile product team environment. • 5+ years developing TypeScript/JavaScript. • 5+ years in a modern JavaScript framework, like React/Next.js, Svelte/SvelteKit, Angular, Vue/Nuxt, etc. • 5+ years of experience integrating payments/ecommerce. • 3+ years of experience with Content Management Systems (CMSss) • Candidate should have a strong passion for AI, ML, big data, etc. and how these technologies can make them more efficient programmers. • Bachelor's degree in computer science, information technology, or a relevant field preferred. • Strong passion for software development, demonstrated through engagement in extracurricular activities such as personal projects, open-source contributions, and the maintenance of public GitHub repositories. • Constantly learns the latest technologies and has a desire to continue to learn. • Advanced CSS/SCSS expertise and responsive design • Experience with TailwindCSS or interest in learning. • Experience with Shadcn or interest in learning. • Experience with React Hook Form (or other form libraries). • Experience with Zustand, Redux (or other state management libraries). • Experience with Performance optimization (Core Web Vitals, lazy loading, code splitting) • Experience with Accessibility (WCAG 2.1 AA compliance) • Solid understanding of API architecture and design concepts, including how to write/test microservices. • Strong proficiency with REST APIs and web sockets. • Experience with domain driven development, CQRS, and event sourcing. • Experience with access management. • Experience working with customer data and search. • Experience working with pay-in and pay-out information. • Experience with subscription based auto-shipped orders. • Strong proficiency with Docker and Kubernetes. • Strong proficiency with relational databases (e.g. SQL Server and PostgreSQL) and document databases (e.g. MongoDB). • Experience with continuous integration and continuous deployment pipelines (e.g. Travis-CI and GitHub Actions). • Experience with API development tools (e.g. Git and Postman). • Experience with application monitoring tools (e.g. DataDog, Prometheus, AWS CloudWatch, and Grafana). • Experience with analytic tools (e.g. Google Analytics, MixPanel) • Strong analytical and problem-solving skills. • Willingness to travel from time to time. If you’re interested in an organization where you can have a large impact, be a key part of driving core initiatives forward, and carve out the scope of your own role, we’d love to talk to you