Source Job

$180,200–$252,300/yr
US

  • Define the technical architecture for Reddit’s prototyping ecosystem and lead the strategy for transitioning from static designs to interactive, data-driven experiments.
  • Architect and maintain a robust, web-based (React, Next.js) prototyping environment that allows for dynamic swapping of screens and journeys for scaled A/B testing.
  • Partner closely with UXR to drastically reduce the time-to-insight for complex product questions by automating testing and building tools for deploying quantitative tests.

React Next.js Node Firebase

20 jobs similar to Senior UX Engineer, Prototyping Platforms

Jobs ranked by similarity.

US

  • Own the frontend technical vision across marketing websites, landing pages, and web applications.
  • Build and maintain high-performance websites with Next.js and modern frontend tooling.
  • Partner closely with product, design, and growth teams to support experimentation and iteration.

LumiMeds is a fast-growing U.S.-based telehealth company focused on weight management and long-term metabolic health. They work with a fully remote, globally distributed team and pride themselves on moving quickly, communicating clearly, and building systems that actually work.

US

Build responsive, performant, and accessible web applications using React and Next.js. Translate UX/UI designs, user journeys, and requirements into reusable, maintainable, production-ready components. Contribute to front-end architecture decisions, coding standards, and best practices.

Robots & Pencils is helping to build a modern, unified digital experience platform for a large multi-venue hospitality and entertainment organization.

US

  • Lead the design and development of user interfaces that drive data insights.
  • Build reusable, scalable frontend components and systems using modern frameworks and tooling.
  • Drive architectural discussions and make technical decisions that ensure code quality and performance.

Attentive is the AI marketing platform for 1:1 personalization redefining the way brands and people connect.

$175,000–$200,000/yr
Unlimited PTO

Build rich, performant frontend experiences in React + TypeScript, including dashboards, traces, configuration flows, and real-time views. Collaborate with backend engineers on requirements, define API contracts, implement UI, and ship with metrics, logs, and alerts wired up. Lead frontend architecture decisions around routing, data fetching, caching, and client-side error handling.

Arize AI is the leading AI & Agent Engineering observability and evaluation platform, empowering AI engineers to ship high-performing, reliable agents and applications.

Lead the decision-making process for creating a new front-end framework from scratch. Implement front-end architectural decisions on high-impact eCommerce projects, promote best practices, and ensure the scalability and performance of our applications. Define and maintain robust front-end architecture aligned with modern best practices.

SQLI helps major international brands create value through technology and digital innovation.

US

  • Develop complex React applications.
  • Craft amazing user experiences.
  • Solve problems in creative ways while balancing tradeoffs and timelines.

Flocknote is a small, startup engineering team with a passion for the Church; striving to create a place where every developer can build the best work of their lives.

$121,000–$160,000/yr
US

  • Build front-end web applications in a fully-remote engineering team.
  • Design, build, and maintain efficient, secure, reusable, and reliable code.
  • Partner with designers, product managers, and engineers to build new features and improvements.

Angel is the home of stories that amplify light and allows creators and audiences to form passionate communities around their creative projects.

Canada

Write clean, modular, extensible and well-tested code that supports long-term maintainability and scalability. Design, build, and debug complex distributed systems across the full stack. Collaborate with engineers to design scalable, well tested, and well documented web architecture, including APIs and backend systems.

StackAdapt empowers marketers to reach, engage, and convert audiences with precision through its AI-powered marketing platform.

Europe

  • Bring core iOS App to cross platforms using cross-platform SDKs.
  • Rapidly build prototypes from mockups and create interactive web/mobile UIs.
  • Improve rendering performance and perform cross-browser/device testing.

Goodnotes merges human creativity with AI, creating tools for productivity and learning. They value innovation, user focus, and teamwork, fostering a culture of continuous improvement and ownership.

$124,192–$177,631/yr

  • Lead the development of interactive design tools that support Minted's creative community.
  • Collaborate with designers and engineers to translate user needs into technical requirements.
  • Optimize front-end performance for responsiveness and speed, especially for complex design features.

Minted is a design-driven marketplace that connects consumers with independent artists and is passionate about creating beautifully crafted, personalized products.

North America

  • Accelerate the execution of high-impact initiatives on the Cards team.
  • Ship features end-to-end, working across the TypeScript/NextJS/GraphQL stack.
  • Collaborate with a fast-paced, high-autonomy team to deliver meaningful product impact.

Keep provides businesses with a comprehensive suite of cross-border banking services, offering everything from credit cards to deposit accounts.

$80,300–$94,900/yr
Canada

Independently deliver features end-to-end. Work across the stack, shipping new functionality, refactoring existing systems, and improving reliability. Collaborate closely with a team of senior engineers and product owners.

CivCheck is transforming how cities manage plan review and building code compliance.

Unlimited PTO

  • Drive technical execution for growth initiatives aligned with business goals.
  • Design and implement systems to support A/B testing and rapid experimentation.
  • Analyze data and user behavior to inform technical decisions and refine growth strategies

Monarch is a powerful, all-in-one personal finance platform designed to help make the complexity of finances feel simple again.

US Unlimited PTO

  • Build AI-focused user interfaces.
  • Own the frontend architecture and component library.
  • Create responsive, accessible experiences.

Mento is a career technology company that helps people be exceptional and thrive at work through human, AI, and software-based coaching. They strive to create a fun, conscientious, collaborative, and supportive work environment and are a US-based, remote-first company, backed by leading VCs and angel investors.

  • Design and implement interfaces across the platform for compute orchestration and RL training.
  • Translate complex backend systems into intuitive, production-ready product experiences.
  • Build for technical audiences, including AI and general software engineers.

Prime Intellect makes frontier AI accessible to everyone and enables individuals/organizations to train models using their agentic training infrastructure.

Canada 3w PTO

  • Design, develop, and maintain end-to-end features for Cresta’s no-code processing platform.
  • Build intuitive UI components and visual editors for configuring conversation logic and workflows.
  • Architect and implement backend services and APIs to power a dynamic no-code interface.

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center.

$225,000–$300,000/yr
US

  • Define and lead the architecture of our frontend ecosystem, focusing on scalability, performance, and maintainability.
  • Improve developer velocity through standardized tooling, templates, build pipelines, and testing frameworks.
  • Collaborate with Product, Design, and Engineering teams to deliver cohesive, high-quality user experiences.

Orum’s AI-powered suite helps salespeople connect and sell. They are a remote-first team creating a future where work feels meaningful and connected.

Unlimited PTO

  • Refine and iterate on UX for existing features, focusing on making significant improvements.
  • Prototype interaction alternatives rapidly, using Figma or code to test different approaches.
  • Own the "feel" of the product, including transitions, feedback, error handling, and progressive disclosure.

Arize AI is the leading AI & Agent Engineering observability and evaluation platform , empowering AI engineers to ship high-performing, reliable agents and applications.

US India

Define the frontend architectural vision for complex products, design scalable component systems and UI frameworks, and translate product requirements into robust technical architecture. Lead performance optimization, accessibility, security, and scalability initiatives. Build reusable libraries and design systems, review code paths, and mentor senior engineers.

Emergent is reimagining how software gets built to democratize development, enabling anyone with an idea to become a creator.

US

  • Build and ship high-quality product features in an Agile team.
  • Translate designs and requirements into performant React experiences.
  • Optimize for real-world performance at scale.

As the industry-leading, human-focused engagement platform, we deliver powerful online communities and communication tools to organizations looking to build, retain, and grow.