Senior Platform Engineer

Radius is a fast-growing, venture-backed startup in the heart of San Francisco. Radius applies advanced data science to deliver the freshest, most accurate, and most comprehensive view on 20M+ US companies—from small businesses to the largest enterprises. We build cutting-edge machine learning solutions that help our customers discover markets, acquire customers, and measure performance through an app that’s intuitive, secure, and enterprise-ready.

You will be responsible for designing and building the infrastructure and APIs to serve the primary customer-facing application as well as other internal systems. At Radius, engineers work cross-functionally, as you will touch nearly every part of the codebase to ensure the platform is scalable, robust, and easy-to-use.

* Work with a team of other talented engineers and product managers * Build robust, scalable, integrations using 3rd party APIs * Create and maintain a REST API for use by other teams within Radius * Write production-quality software with an emphasis on scalability and maintainability * Provide mentorship to more junior members of the team

**Requirements:** * 5-10+ years experience as a full-stack or back-end engineer * Team lead or management experience * Advanced experience with Java * Experience with SQL and relational databases * Comfortable working in a *nix based environment * History of creating professional level software * Understanding of networking concepts * Passion for the craft of software engineering * Experience writing automated tests (JUnit, TestNG) **Additional Preferred Qualifications:** * Experience with JPA, Hibernate, etc * Experience with REST APIs * Experience using AWS services * Experience with Elasticsearch * Experience with a service oriented architecture * Experience with performance tuning the JVM * Experience scaling of relational databases: including sharding, partitioning, etc * Web development with JavaScript * Experience leading teams of engineers