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Backend Engineer (Image & video rendering at scale)

Position Details
Location Helsinki
Commitment Permanent
Team Product Engineering

We’re looking for an experienced backend engineer who’s interested in performance, scalability, reliability, distributed systems, browser technologies and infrastructure as code. 

We’re fetching >7GB/s of product photos and videos from our customers, combining them in endless variations to produce high quality image and video ads AND serving them in real time to our partners. Join Team Render and start learning!

  • Our image template system renders >50k images per second in real time. That’s 3GB/s of images. Want to learn how we make the system reliable?
  • Want to write code where performance really matters? Want to learn how to write fast, scalable and reliable Typescript services? We can render >100k HD videos per day.
  • Want to see how kubernetes scales? We continuously deploy every PR to over 10k pods across 5 kubernetes clusters multiple times per day. 

Our technology stack:

  • Typescript on NodeJS, OpenAPI, Jest
  • Google Chrome, Puppeteer, FFmpeg
  • Postgres, redis
  • Varnish, HAProxy
  • Kubernetes on bare metal
  • AWS S3 and Cloudfront

The team's scope...

As a team we look after the backends for image templates, video templates, asset fetching and error aggregation. We work closely with our sister team who develop the template editor frontend. As a team we are part backend developers and part DevOps/SRE … but we don’t do on-call!

Smartly.io’s business is growing thanks to new and upcoming integrations to many platform partners (Facebook, Instagram, Pinterest, Snapchat, TikTok, etc). Our templating services are at the core of this growth - we help large organizations automate putting their images and videos where they want, looking the way they want and in the right formats. Fetching the assets (images, videos, fonts) that our customers want to use is one of our most interesting challenges as we fetch and cache >35M per day from customers who are not all ready to handle the traffic. Performance means so many things to us, we are very data driven when finding and targeting bottlenecks. We focus on removing the bottlenecks that actually matter whether they are in application, third party software, middleware or network.

We work as a team to agree priorities, break work into achievable tasks and stories, and we limit work in progress to ensure as much pair work as possible. As we work across a wide range of technologies (browser internals, Typescript, distributed systems, kubernetes) you’ll have exposure to a wide variety of tasks. In team Render you’ll have freedom to work on tasks that interest you to maximize your learning (a key Smartly.io value).

Take a look at what the team is working on:

Modernizing our Image Template Service

How We Built our Video Editing and Rendering Solution

Further reading about our template editor:

Taking Creative Automation a Step Further: Introducing Video Templates

Our official support article

Your work will have a direct impact on our customers and our business. You will own your work, and we will support you in that ownership. We value work life balance and have a strong culture that we hope all of our Smartlies bring their own flavor to. As a company we provide a competitive salary, option package and a generous package of benefits.

What to expect from our recruitment process...

  1. First meeting: we're getting to know each other. 
  2. Meeting the Team Lead: learn more about your future team.
  3. Technical interviews: You will take part in an interactive coding interview with one of our developers followed by a discussion around Systems Design and Architecture. As the final interview we will have an Explore and Expand where we'll dig deeper into your main interests and core skills.

#LI-SL #LI-Hybrid

 

Meet Smartly.io

Bringing brands and people together smartly. We are building a platform that combines media buying, creative, and data to automate every step of digital advertising.

We manage 4B€ in ad spend and serve more than 700 brands worldwide, including eBay, Uber and TechStyle. Our technology liberates marketers from manual work and allows them to focus on what matters. 

As a fast-paced growth company, Smartly.io offers opportunities to maximize your learning and amplify your impact. With colleagues from 68 nationalities, you'll work in a collaborative and inclusive environment built on a culture of trust, transparency, and feedback. Join our global team of over 650 Smartlies in reshaping the future of marketing. Learn more at smartly.io/careers and smartly.io/our-leadership-and-culture.

We are a hybrid workplace where Smartlies have the flexibility to work at the office, from home, or a bit of both. We also offer programs for short-term remote work globally. 

We are currently running fully remote recruitment processes due to the global pandemic. Read more here.

 

Reasonable accommodation for people with disabilities

Smartly.io is committed to providing reasonable accommodations for qualified individuals with disabilities or special needs in our job application procedures and working environment. If you need assistance or have any questions please contact us at accommodations@smartly.io.

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Backend Engineer (Image & video rendering at scale)

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