Senior Backend Engineer
Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Feb 26, 2026. Smartly scores A on the Alion truth index.
Senior Backend Engineer
We’re looking for a Senior Backend Engineer to join Smartly in Mexico City and help build the systems behind creative automation for some of the world’s largest brands. As part of our 250+ person Product & Engineering organization, you’ll design scalable services and infrastructure that help customers turn ideas into high-performing campaigns across markets and channels.
You’ll work on data-intensive backend systems, platform integrations, and increasingly AI-driven workflows that help customers generate, adapt, and optimize creative at scale. You’ll have meaningful ownership of the systems you build, collaborate closely with Product, Design, and Engineering, and help other engineers grow through technical guidance and shared best practices.
Our backend stack is built around Node.js and TypeScript, with a strong focus on clean, maintainable code and systems that can operate reliably at scale. Learn more about how we build products on Engineering at Smartly.
What You Will Do
- Own the design and delivery of new platform integrations from definition through production and ongoing operation.
- Design, build, monitor, and improve data-intensive backend services and distributed systems that support complex customer workflows at scale.
- Build reliable APIs and data pipelines with a focus on scalability, performance, maintainability, and operational quality.
- Collaborate with engineers, product managers, and designers to turn customer problems into clear technical solutions and product experiences.
- Make thoughtful technical decisions and trade-offs while maintaining a strong focus on customer value and sustainable engineering practices.
- Contribute to team practices including technical planning, retrospectives, design discussions, and collaborative problem-solving.
- Coach other engineers through technical discussions, feedback, code reviews, and the sharing of engineering best practices.
What We Are Looking For
- Strong backend engineering experience using modern technologies such as Node.js and TypeScript.
- Experience designing, building, and operating robust distributed web applications and backend services.
- A solid understanding of scalable system design, APIs, data-intensive services, and the practices required to run production systems reliably.
- The ability to take ownership of complex technical work and make pragmatic decisions that balance quality, maintainability, and delivery.
- A customer-focused approach to engineering, with an interest in understanding the problems behind the features you build and delivering meaningful value.
- Strong collaboration and communication skills, including the ability to support and coach other engineers.
- Ability to work from our Mexico City office one day per week.
What We Offer You
At Smartly, we offer a place where you can advance your career. Here, you'll find:
An Inclusive Global Culture: Join a team of over 750 Smartlies, representing more than 60 nationalities across 24 locations in 13 countries. We cultivate a culture built on trust, transparency, and open feedback, where diverse perspectives are valued and encouraged.
Global Impact: Contribute to a company making a global impact, directly influencing our customers' success and business growth.
Focus on Wellbeing: We prioritize your health with healthcare packages, mental health services, and a commitment to work-life balance through paid holidays and family leave.
Comprehensive Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and career development opportunities.
Flexible Hybrid Workplace: Experience a hybrid work model, balancing office collaboration with remote work, and the option to work abroad for up to 30 days annually.
Apply Now and Build Your Future with Smartly!
Curious what it’s like to work at Smartly? Visit our Careers page to see how we grow, collaborate, and make impact together
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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