Senior Frontend Engineer

smartlyio· Research & Development
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📍 Mexico City

About this role

Are you an ambitious engineer ready to take on meaningful challenges and accelerate your growth? We’re looking for a Senior Frontend Engineer to join our 250+ person Product & Engineering organization at Smartly.

Our engineering team builds the technology that powers creative automation for some of the world’s largest brands. We enable them to turn a single idea into high-performing, global campaigns by delivering fast, scalable, and intuitive creative tools used at massive scale. Increasingly, we’re also building AI-driven workflows that help customers generate, adapt, and optimize creatives in smarter ways.

As a frontend engineer, you’ll tackle complex challenges across performance, scalability, and user experience. You’ll build responsive, reliable interfaces that make sophisticated capabilities feel simple and delightful. Work is done closely with designers, product managers, and backend engineers to craft features that our customers will genuinely love and depend on.

We’re focused on React and TypeScript as our core frontend stack, and continuously evolve how we use them to build performant, maintainable, and scalable products. We care deeply about engineering craftsmanship, product quality, and continuous improvement, always looking for better ways to build, simplify, and scale.

Check out our Engineering at Smartly site to learn how our engineering and product development work.

As a Senior Software Engineer, You Will:

  • Take an end-to-end responsibility for complex projects from design to deployment.
  • Find the smallest possible increments to deliver value to our customers as quickly as possible.
  • Partner closely with Product and UX to dissect complex requirements into well-designed and well-executed software.
  • Lead technical design decisions and tradeoffs, balancing long-term architecture with immediate product needs.
  • Be a core contributor to our Engineering Group, ensuring our frontend and core packages remain performant and scalable.
  • Act as a mentor and technical guide, elevating the team through constructive code reviews and sharing your expertise.
  • Drive projects forward independently and proactively dispatching roadblocks.

What We’re Looking For:

  • Minimum of 6 years of experience in building robust, complex web applications with a mastery of frontend development.
  • Expertise in React and TypeScript, with a deep understanding of state management and performance optimization.
  • Proven ability to drive projects independently, showing persistence and autonomy in the face of technical hurdles.
  • Ambition and eagerness to excel and commitment to continuous growth
  • Excellent spoken and written communication skills in English
  • Strong analytical skills to translate a broad product vision into actionable technical tasks.
  • Motivation for solving customers' problems and delivering value to customers at a fast pace
  • Ability to work on-site at our Mexico City office 3 days per week

Smartly is committed to being the best place to work for growth-minded individuals to thrive - explore more in our Culture Handbook!

What to Expect from Our Recruitment Experience:

  • Meet your Recruiter: Get to know each other and learn about working at Smartly.
  • Meet the Team Lead: Gain deeper insights into your future team.
  • Meet the Team in Technical Interviews: Engage in an interactive coding interview followed by a discussion around Systems Design and Architecture.
  • Meet the Leadership in a Final Meeting: A brief discussion with our VP of Engineering.

Apply Now and Shape Your Future with Smartly!

About Smartly

Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers. Our comprehensive advertising platform seamlessly integrates the capabilities of media, creative, and intelligence to power more than 800 billion impressions and generate more than 300 billion creatives annually, delivering tangible business outcomes for brands and advertisers.

Smartly is the only company in the industry recognized as a Leader in The Forrester Wave: Creative Advertising Technologies with PwC validating the results it delivers for brands. We manage creative and media for 700+ brands worldwide and $6B in ad spend across the largest media platforms, including Facebook, Google, Instagram, Pinterest, Snap, and TikTok. Our end-to-end technology, unmatched access to media platforms and exceptional customer service help Fortune 500 brands to reach and engage consumers and learn what performs best.Smartly is a multinational and diverse team of 750+ Smartlies from 60+ nationalities, working in 13 countries. Together, we want to create and maintain an inclusive environment where everyone feels respected and heard. Our Diversity, Equity & Inclusion approach is at the heart of it.

Visit Smartly to learn more.


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Frequently Asked Questions

Is the salary disclosed for the Senior Frontend Engineer position at smartlyio?
The salary for this Senior Frontend Engineer role at smartlyio is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Frontend Engineer position at smartlyio located?
This Senior Frontend Engineer role at smartlyio is based in Mexico City. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Senior Frontend Engineer at smartlyio belong to?
This Senior Frontend Engineer position is part of the Research & Development department at smartlyio. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Frontend Engineer position at smartlyio?
Click the "Apply Now" button on this page. You will be redirected to smartlyio's official application portal hosted on greenhouse where you can submit your application directly.
When was the Senior Frontend Engineer job at smartlyio posted?
This Senior Frontend Engineer position at smartlyio was posted on Feb 25, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Frontend Engineer
smartlyio
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