Senior Frontend Engineer, Platform UX

Apollo.io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally, from rapidly growing startups to some of the world's largest enterprises. Founded in 2015, the company is one of the fastest growing companies in SaaS, raising approximately $250 million to date and valued at $1.6 billion. Apollo.io provides sales and marketing teams with easy access to verified contact data for over 210 million B2B contacts and 35 million companies worldwide, along with tools to engage and convert these contacts in one unified platform. By helping revenue professionals find the most accurate contact information and automating the outreach process, Apollo.io turns prospects into customers. Apollo raised a series D in 2023 and is backed by top-tier investors, including Sequoia Capital, Bain Capital Ventures, and more, and counts the former President and COO of Hubspot, JD Sherman, among its board members.

Your Role & Mission

We are looking for a very senior frontend engineer who will act as a Tech Lead within the Platform UX team. This role is focused on building, maintaining, and evolving our frontend foundations, large macro components, reusable patterns, and scalable frameworks that are used across the application.You will be part of a highly autonomous team that operates independently while delivering critical platform capabilities. As a Tech Lead, you will lead projects end to end, collaborate across functions, and contribute to planning and delivery strategy to ensure platform initiatives are aligned with long-term goals. You will also work closely with the Design System and Frontend Platform teams to drive platform adoption and consistency across the product.

Our tech stack is React/Redux/NodeJS on the frontend, Ruby/Ruby on Rails/MongoDB/Elasticsearch on the backend, and Kubernetes/Docker/Ansible/Terraform in infrastructure.

What You Will Do

• Architect, build, and evolve frontend foundations, frameworks, and macro components for reuse across the app
• Lead cross-team initiatives and align product squads, design system, and platform engineering
• Operate with high autonomy while ensuring platform goals and adoption are met
• Write meaningful tests to guarantee reliability and confidence at scale
• Champion performance, accessibility, and scalability best practices across the frontend organization
• Apply strong UX and product sense to balance tradeoffs and deliver the right MVP
• Write comprehensible, well-structured, and highly performant code
• Leverage AI tools for code generation, debugging, testing, and productivity optimization
• Stay current with emerging frontend and AI technologies to evolve platform capabilities

What We Are Looking For

• Strong knowledge of frontend architecture and system design, with experience building scalable UI frameworks
• Experience leading large, cross-functional projects that impact multiple teams and disciplines
• Ability to think in platform terms and deliver solutions that scale across teams
• Proven expertise in performance optimization, accessibility, and usability at scale
• Pragmatic product mindset with the ability to balance technical depth and business value
• Ability to advocate for adoption of platform components, patterns, and systems
• Demonstrated experience integrating and using AI tools to accelerate development workflows
• Readiness to take on a Tech Lead role, influencing the direction of the frontend platform and mentoring others

Skills & Relevant Experience

• B.E/B.Tech in Computer Science, or equivalent
• Minimum 8 years of total experience as Software Engineer in frontend development; at least 1-2 years in senior position, developing large-scale applications
• Solid understanding of core JavaScript (ES6), React, Redux, HTML, CSS, and TypeScript
• Strong attention to detail
• Understanding of REST APIs
• Experience with Cypress in writing meaningful tests
• Interest in building UI with performance, accessibility and scalability in mind
• Strong UX and product sense with the ability to negotiate the right MVP
• Your code is comprehensible, well-structured, highly performant
• Strong knowledge of Frontend Architecture and System Design
• Proven experience leveraging AI tools to enhance software development processes, including code generation, debugging, andproductivity optimization. Candidates should demonstrate fluency in integrating AI-driven solutions into their workflows and a willingness to stay current with emerging AI technologies

We are AI Native

Apollo.io is an AI-native company built on a culture of continuous improvement. We’re on the front lines of driving productivity for our customers—and we expect the same mindset from our team. If you're energized by finding smarter, faster ways to get things done using AI and automation, you'll thrive here.

Why You’ll Love Working at Apollo

At Apollo, we’re driven by a shared mission: to help our customers unlock their full revenue potential. That’s why we take extreme ownership of our work, move with focus and urgency, and learn voraciously to stay ahead.

We invest deeply in your growth, ensuring you have the resources, support, and autonomy to own your role and make a real impact. Collaboration is at our core—we’re all for one, meaning you’ll have a team across departments ready to help you succeed. We encourage bold ideas and courageous action, giving you the freedom to experiment, take smart risks, and drive big wins.

If you’re looking for a place where your work matters, where you can push boundaries, and where your career can thrive—Apollo is the place for you. 

Learn more here!