Senior Go Backend Engineer

We are looking for a Senior Data Scientist to join the AI Platform Team at Smartly! Our team works on helping marketers make the most of their ad creatives (images, video, text) and campaigns (product and performance data). We build and experiment with AI-based solutions across the media and creative workflows. You will have the opportunity to take ownership of and work on high impact projects. Join us in building high impact ML-based solutions to help our customers to build better and more effective advertising experiences for their consumers. If you’re a growth minded individual who has a passion for Data Science and the marketing space, this team is for you! AS A SENIOR DATA SCIENTIST, YOU’LL: * Implement, build, and deploy scalable models and machine learning solutions that enable our users to craft great advertising experiences and campaigns with a focus on maintainability, observability, scalability and stability. * Own projects end-to-end: from problem framing and data exploration to modeling, validation, and monitoring in production. * Work with a large span of datasets from image to video to audio to text to structured performance data.  * Analyze large-scale datasets to uncover insights, trends, and opportunities that inform product strategy and customer outcomes. * You’ll work alongside our stellar data scientists, senior machine learning engineers, and software engineers to enable us to productionize AI/ML applications more robustly and efficiently. * Be a core contributor of our team and our ways of working to build high impact products. You’ll actively be involved in work planning, retrospectives, and overall team improvement. * Impact the daily life of the staff of the hundreds of advertisers using Smartly  * Work with our stakeholders - be them product, engineering, infrastructure - to ensure we meet customers where they are. Being able to translate business/product needs to viable solutions is a must. * Apply and enhance your soft skills through working closely with your colleagues and our customers. Doing knowledge shares, running productive meetings, and pair programming/debugging are just some ways we grow our soft skills. * Keep up to date with the latest AI innovations, especially in areas such as generative AI, computer vision, natural language processing and explainability.   WHAT WE ARE LOOKING FOR: * 5+ years of experience in data science or applied machine learning * 2+ years of experience working with cloud infrastructure such as AWS or GCP * Strong foundation in linear algebra, statistics, and calculus * Fluent in Python; experience with C++ or Java is a plus * Hands-on experience with modern ML frameworks (e.g., PyTorch, TensorFlow) * Knowledge of MLOps concepts and tools (e.g., MLflow, Kubeflow) * Experience in feature engineering, model design, evaluation, diagnostics, and monitoring * Analytical mindset with a problem-solving approach * Passion for solving customer challenges quickly while making thoughtful architectural decisions * Ability to communicate complex technical findings to both technical and non-technical stakeholders. * Strong written and verbal communication skills in English * M.Sc. in a relevant field is preferred * Ability and willingness to work in a hybrid capacity from our office 3 days a week 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: We work in a hybrid 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!   #LI-OK #LI-Hybrid 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. The processing of your information is described in our Candidate Privacy Notice.

ABOUT WOLT At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. ABOUT THE TEAM We, the Marketing Tech team, are looking for a passionate and driven Golang/Python Backend Software Engineer. We are a product-focused team that emphasizes enabling the scaling and efficiency of campaigns and marketing efforts both inside and outside of Wolt. The MarTech team is currently building internal services around marketing and consent use-cases to allow our marketing stakeholders to drive marketing campaigns in and out of the app, and ensure we provide and maintain a compliant experience throughout the whole process. We empower marketing with the tools to fully set up and run their campaigns independently so as not to be blocked by product or engineering. In our team, you can expect to face many different types of projects across the realm of acquiring users and keeping them engaged. You’ll work on both maintaining and expanding existing services, as well as planning and designing new ones. Our project types vary a lot, from services used in the core Wolt flow, services for automation or to enable our Marketing teams, ETL jobs, as well as streaming processing workers. Some examples of projects include our in-house built: * Audience management tool in Golang * Marketing attribution powered by Spark * Consents management platform in Golang * Bid & budget automation platform in Python * Campaign generation tool in Golang * A whole host of ETL jobs written in Python The key business need this role is to fill is the development of a centralized consent platform that allows teams to easily create and deploy compliant consent-gathering experiences. Since the team focuses on providing platforms and tools to enable marketing at Wolt, you can expect cross-team collaboration within Wolt. You’ll also regularly be working with marketing or analytics stakeholders and product leads to see through bringing projects from idea to production. In addition, you’ll collaborate cross-functionally with teams from DoorDash, working on building services and aligning roadmaps across several teams. If you didn't know it yet, we have a strong Python community at Wolt: around 100 of our engineers are actively using Python and sharing knowledge related to its rich ecosystem.  Wolt Tech Talks Youtube channel has recordings from our Python meetups and interesting articles in our engineering blog  📍This role can be based in one of our tech hubs in Helsinki and Berlin. Read more about our hybrid and remote setup here. OUR HUMBLE EXPECTATIONS: 👉 You might be the one if you are an engineer with experience in designing and building top-class software and APIs using modern Golang or Python. We work primarily with grpc, FastAPI, Echo, PostgreSQL, and Spark, and value familiarity with Postgres, Kafka, Redis, as well as monitoring, alerting, and deploying services in production. An understanding of what it takes to build and operate scalable software services is key. Our backend runs on Kubernetes in AWS, so experience with similar cloud infrastructure is a strong plus. We also appreciate a willingness to take ownership and deliver projects end-to-end. 👉 You know what it takes to achieve ambitious goals together. We expect you to be a good communicator, willing to collaborate with people outside of your own team, be a product-oriented and proactive problem solver, willing to bring up issues in a constructive manner to the team and the Wolt Product team at large. 👉 Understanding of marketing principles and workflows will also be a plus, but don't let it get into your way if these are newer things for you, we are sure you'll get the grasp of them! OUR COMMITMENT TO DIVERSITY AND INCLUSION We’re committed to growing and empowering a more inclusive community within our company, industry, and cities. That’s why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel.