Backend Engineer (Ruby on Rails)

Sorry, this job was removed at 06:34 p.m. (CST) on Monday, Aug 04, 2025
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Helsinki
Hybrid
AdTech • Artificial Intelligence • Digital Media • Marketing Tech • Social Media • Software • Generative AI
Smartly is an AI-powered adtech company, enhancing marketer productivity and unifying the platform world.
The Role

We are looking for an experienced backend focused engineer to join team Aqueduct, a team building our feed management solution for large-scale cross-platform social advertising. We are looking for a seasoned professional to enable the long-term growth and product success for the team. 

For our customers, providing e.g. product, hotel or flight data as feeds can unlock the potential of creative automation with image and video templates as well as many other nifty features of Smartly app. As we are supporting more and more social channels we want to develop our robust feed management platform to serve them all from a one-stop shop. For this, we are looking for a person familiar with solving complex technical problems, who can also seize learning opportunities and share them with the team.

Aqueduct has a Ruby on Rails backend, and amongst other technologies we’re using: PostgreSQL, Citus, Redis and Sidekiq

Projects you get to work with:
  • In the long term our goal is to provide a multi-tenant data storage and processing service which our customers and other development teams can use
  • Your day to day work will focus on building and supporting very important features for your fellow engineers across the organization so you get to work with multiple teams in close collaboration
What we are looking for:
  • Work experience in converting business requirements into technical solutions
  • Experience building data-intensive applications 
  • Ideally, experience managing distributed databases
  • Active “ready-to-share” attitude when it comes to learnings and improvement ideas 
  • Experience with Ruby on Rails
  • Ability to work in a hybrid capacity from our Helsinki office 3 days a week (more if you like)
What We Offer You:
  • Inclusive Culture: Join a team of over 750 Smartlies representing more than 60 nationalities across 24 locations in 13 countries, we foster a culture built on trust, transparency, and open feedback.
  • Global Impact: Be part of a company making a global impact, directly influencing our customers and business growth.
  • Wellbeing Focus: Enjoy generous healthcare packages, mental health services, and a healthy work-life balance with paid holidays and family leave.
  • Total Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and ample career development opportunities.
  • Hybrid Workplace: Experience the flexibility of a hybrid work model, balancing office and remote work, with the option to work abroad for up to 30 days.

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!


#LI-Hybrid #LI-JF2

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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The Company
HQ: Helsinki
805 Employees
Year Founded: 2013

What We Do

We solve for advertising campaign and creative complexities - both key elements to the time/money savings and performance that brands, agencies and businesses seek.

Our unified platform combines media, creative, and intelligence, offering end-to-end workflows powered by AI across the open and closed web. With over 700 brands and advertisers, we've proven that dynamic and personalized creative makes advertising impactful.

We are on a mission to transform the advertising experience for brands and their consumers. ⚡️

Why Work With Us

As a fast-paced growth company, we offer opportunities to maximize learning and amplify impact. Our culture and values have always been the secret sauce of our growth. They define how we aspire to build our adtech product, whom we hire and reward, and how we work towards a shared vision. Join us in moving advertising forward.

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Smartly Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

We are a hybrid workplace where Smartlies have the flexibility of hybrid work combining office and work from home. We also offer programs for short-term remote work globally.

Typical time on-site: 3 days a week
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