Senior Software Engineer

Upwave is a leading measurement company focused on optimizing upper funnel campaigns through its AI-driven platform. As a Senior Software Engineer, you will build APIs and data pipelines, collaborate with cross-functional teams, and enhance the brand measurement platform for major advertisers.

Responsibilities:

• Build AI-powered customer experiences — integrate LLMs and advanced causal inference techniques into production workflows that automatically generate data visualizations, synthesize campaign performance into natural language insights, and help enterprise customers understand and optimize their advertising through our AI analyst "Bayes."
• Design and build scalable backend systems —develop microservices and RESTful APIs that power the analytics platform behind the world's top brand campaigns
• Contribute across the stack — work from backend APIs to Python analytics services to React frontends, delivering complete features that combine sophisticated data analysis with intuitive user experiences
• Engineer data pipelines at scale — design and operate systems that process massive volumes of ad and survey data with MySQL, DynamoDB, and AWS (S3, Lambda, EMR, Kinesis Firehose)
• Improve reliability and performance — deploy services on Kubernetes and AWS, automate deployments via CI/CD, monitor with DataDog and Sentry, and continuously raise the bar for operational excellence
• Collaborate deeply — work closely with Product and Data Science to productionize statistical models, integrate advanced analytics into customer-facing tools, and bring cutting-edge AI capabilities to enterprise customers
• Deliver insights that move millions — enable brand lift analytics and real-time campaign insights by building reliable, high-throughput systems. Multi-million dollar advertising decisions hinge on our recommendations

Requirements:

• 5+ years of experience as a software engineer
• Experience building powerful, intuitive, API-driven products for professional users
• Comfortable across the stack, with experience in RDBMS-backed backends using Spring Boot, Django, Rails, or Express
• Experience with single-page frontends built in React, Vue, or Angular
• Fluent in the modern landscape of UI frameworks, API and microservice architectures, databases, and cloud platforms
• Embrace modern AI-powered development tools to move faster and code smarter
• Value structured software development practices—testing, documentation, CI/CD, and code review
• Experience designing systems that are easy to deploy and maintain in the cloud
• Ability to collaborate closely with Product to design features that solve real-world problems
• Mentor others and share knowledge freely
• Take responsibility and move quickly to fix problems
• Communicate clearly and compassionately, contributing to a culture where people enjoy working together
• Experience with modern backend ecosystems like Java/Kotlin/Groovy (Spring Boot or Grails)
• Fluent with data systems such as MySQL, DynamoDB, and Presto
• Experience building cloud-native applications on AWS, especially using Kubernetes and Terraform
• Familiarity with modern front-end frameworks like React/Redux
• Experience in startup environments, comfortable with ambiguity and fast iteration
• Experience from AdTech, MarTech, or measurement platforms, or excitement to learn how AI and large-scale data intersect in this space