About the role

We're looking for a Lead Engineer (Rails/React) to join our CMS engineering team. At Circle, our CMS team is responsible for the core user-facing areas of our product—including community discussions, courses, the Home feed, our automated weekly digests, search, and more.

This is a high-impact, high-visibility role that blends hands-on technical leadership with product thinking. You’ll work closely with cross-functional teams (product, design, and customer experience) to shape our roadmap and bring ideas to life. Beyond shipping high-quality code hand-on, you’ll set the engineering direction for your team, drive architectural decisions, and ensure operational excellence.

You’ll also mentor and guide a team of senior engineers distributed around the world, fostering a collaborative culture rooted in curiosity, ownership, and continuous improvement. If you thrive in fast-paced environments, enjoy building polished, customer-facing experiences, and want to help shape the future of online communities, this role is for you.

What you'll be doing

Shipping often and with care, balancing speed with thoughtful, quality work.
Working with the design team to create the best page builder experience for our customers. You will be leading the team and setting the direction of the product.
Leading and mentoring a global team of engineers, driving execution and fostering continuous growth.
Working on a team obsessed with product-led growth, constantly iterating and pushing boundaries.
Owning end-to-end project management, from concept to execution, for impactful results.
Designing and implementing A/B tests to validate changes and drive measurable improvements.
Analyzing user data proactively to identify growth opportunities and refine the product experience.
Engaging regularly with internal stakeholders to align on priorities and initiatives seamlessly.

What you'll need to be successful

Strong alignment with our values, find our values on our career page if you haven’t read up on them yet.
You are proficient in English (spoken, written, and reading) at a CEFR Level C2 / ILR Level 5.
You have 3+ years of experience leading and mentoring engineers in fast-growing startups.
You have 8+ years of experience in full-stack product development, with deep knowledge of Ruby on Rails, React, Sidekiq, Kafka, and payment integrations (we heavily use Stripe).
You have experience working with page builders in the past, including knowledge in SEO and drag & drop builders.
You’re great at managing projects end-to-end, and thrive on turning ideas into action.
You think strategically but aren’t afraid to roll up your sleeves for tactical work.
You communicate clearly, aligning teams and explaining technical things in a way everyone gets.
You’re a self-starter who takes initiative and enjoys a fast-paced, ever-evolving environment.
You’re data-driven, constantly using insights to validate your next move.
You’re passionate about creating user-centric solutions that drive growth and make a real impact.

Bonus points

Examples of using AI tools to do data analysis, boost your productivity, or solving interesting problems.
Previous experience as a founder or in a highly entrepreneurial environment.

Lead Engineer, CMS Builder

Anywhere in the world

Remote

Senior

Circle