Sr. Software Engineer, AI Platform Services

When applying for roles at Keystone AI , please use our official careers page or LinkedIn company profile. All other sites where Keystone AI careers may appear may not be legitimate. WHO WE ARE Keystone AI is the trusted leader in real-time Customer Data Platforms (CDP) , helping organizations unify their customer data to deliver more personalized, privacy-conscious experiences. As the demand for connected, intelligent customer engagement grows, Keystone AI ’s leadership in CDP is translating directly into leadership in enabling enterprise AI strategies . By providing clean, consented, and actionable data, Keystone AI empowers its customers to accelerate the adoption of AI and machine learning, fueling smarter personalization, predictive insights, and business outcomes at scale. More than 800 leading global brands trust Keystone AI to power their customer data strategies and deliver real-time, personalized experiences at scale. Team Keystone AI has team members present in nearly 20 countries worldwide, serving customers across more than 30 countries. We win together with respect and appreciation for the talents required of all positions and the people who contribute to each of these. We are intentional about our WOWs (Ways of Work) culture, our investment in our team members, and how we care and connect. With an extraordinary portfolio of investors (including Georgian, Silver Lake Waterman, Battery, and others) and deep industry experience, Keystone AI has the financial backing, profitability, and expertise to continue to outpace competitors and lead the way in innovation. Today, Keystone AI holds over 50 patents, and a few of the recent industry recognitions include: A Leader in the 2025 Gartner® Magic Quadrant™ for Customer Data Platforms 2025 TrustRadius Award Winner: Buyer’s Choice 2024 Invoca Partner Collaboration Award 2024 G2 Leader in Tag Management & Enterprise Data Governance Keystone AI Customer Data Hub achieved the Top Rated Award by TrustRadius (2024) Named on Destination CRM’s 2024 Top 100 Technologies List for Sales Named on the 2024 Best and Brightest in the Nation list BuiltIn’s 2024 Best Place to Work WHAT WE ARE LOOKING FOR Keystone AI is seeking a Sr. Software Engineer who will be responsible for designing, building, and evolving backend platform services that power Keystone AI ’s next generation of AI-enabled customer data products and real-time configuration workflows. As part of the Platform Services team, you will collaborate across Java, Frontend, QA, DevOps, Architecture, and Product to deliver scalable backend capabilities for Keystone AI ’s emerging agentic and AI-assisted experiences, including CloudStream, Keystone AI Functions, the Functions AI Assistant, the Keystone AI Agentic API (MCP server), and orchestration services for agentic UX. We’re looking for engineers who can think strategically, operate independently, and take ownership of outcomes in a fast-moving environment. There is a strong emphasis on leveraging AI and modern engineering tools to accelerate development, improve problem-solving, and enhance software quality and delivery speed. Successful candidates demonstrate ownership, resourcefulness, and strong problem-solving skills, with a data-driven mindset and a commitment to continuous learning, adaptability, and cross-functional collaboration. Tech Stack : AWS Services : EC2, ECS, S3, EKS, EMR (and glue), Lambdas, step functions, MSK, Kinesis, Cloud Watch AI / LLM Platforms : Amazon Bedrock, LLM APIs, prompt-driven backend workflows DB : Dynamo, Redshift, Postgres, Mongo, Redis Languages : Java 17/21 Frameworks : Quarkus, Hazelcast, React Services : Telepresens, Jenkins, Datadog, Sumologic, Jfrog, Testrail Build : Maven, Gradle YOUR DAY TO DAY Partner closely with software engineers, architects, DevOps, Product Managers, and frontend engineers to design and deliver high-quality backend platform services. Design, develop, test, and maintain scalable applications using modern Java frameworks for real-time data processing, configuration workflows, and AI-enabled product capabilities. Build backend services that coordinate AI assistants, orchestration flows, and tool-driven workflows in a safe, observable, and governable way. Leverage AI-powered development tools and modern engineering workflows to accelerate coding, debugging, testing, and solution design Implement and improve APIs and service layers for profile exploration, configuration, and workflow execution, including support for MCP-based and agent-driven use cases. Contribute to backend draft-state, validation, commit, and profile consistency workflows required for complex multi-step configuration changes. Actively participate in Agile/Scrum ceremonies, contributing to planning, estimation, and continuous improvement. Contribute to architectural design discussions, test planning, operational excellence, and guardrail design for AI-facing and customer-facing backend services. Participate in peer code reviews to ensure adherence to coding standards, reliability expect