Senior Machine Learning Engineer, AI Platform

This Senior/Staff Machine Learning Engineer role on the Data Science team designs modular and scalable real-time data pipelines and implements custom ML algorithms for StackAdapt's digital advertising platform. The engineer will work on microservice architectures running training, inference, and monitoring on thousands of ML models concurrently, and coordinate architectural improvements for big data ML pipelines. Requires deep understanding of algorithms, concurrency, and data structures, with experience in probabilistic or machine learning algorithms and designing scalable distributed systems.

Develops and deploys machine learning models to solve business problems, focusing on model training, evaluation, and productionization. Collaborates with data engineers and product teams to integrate ML solutions into products.

This senior individual-contributor role focuses on architecting and maintaining high-performance feature pipelines (batch, streaming, point-in-time correct) for Cognitiv's real-time bidding systems. The engineer will own model training pipeline optimization, integrate LLM/deep learning embeddings into the feature store, and establish technical standards for monitoring and CI/CD. Requires 3-5+ years of ML infrastructure experience, proficiency in Python/Java/Scala, and deep expertise in AdTech and big data technologies like Spark, Flink, and Kafka.

This senior staff role leads the vision and architecture for Reddit's large-scale GenAI Platform, including the LLM Gateway, RAG systems, and agentic AI workflows. The engineer will define platform strategy, drive MLOps/LLMOps standards, and ensure scalability and reliability across GenAI products. Requires 10+ years in ML/AI platform engineering, deep Kubernetes experience, and proficiency in Go/Python.

This Senior Frontend Engineer role focuses on building and scaling the Editor platform, a creative production tool for designing, animating, and scaling ad assets. You will own end-to-end vertical slices, lead technical design decisions, and mentor team members, leveraging deep expertise in React and TypeScript with high-performance canvas interactions. The role requires 6+ years of experience and a hybrid presence in Helsinki.

This Senior Product Manager role owns the next generation of Smartly's Triggers, a core optimization feature managing over $1B in annual ad spend. The PM will lead discovery, define the roadmap, and launch a closed alpha with select customers, working closely with engineering and channel teams. Requires 5+ years of B2B SaaS product management experience, ideally in digital advertising, with strong data analysis and cross-functional leadership skills.

This Senior Software Engineer role is part of Team Autopsy, which builds automation and optimization capabilities for Smartly's advertising platform, including services like Triggers, Ad Rotation, Smartly Actions, and Action Router. The engineer will design and maintain backend services and frontend applications using TypeScript, Node.js, Python, and React, with a focus on distributed systems and cloud-native practices. Requires strong experience in backend development, automated testing, and the ability to drive projects independently.