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# Senior Full Stack Platform Engineer

- **Company:** Moloco, Inc.
- **Location:** Redwood City, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Training Data, Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Business Analytics Applications, C Sharp (Programming Language), C++ (Programming Language), Command-Line Interface, Software Code Optimization, Data Visualization, Django Web Framework, Design of User Interfaces, Human-Computer Interaction, Interoperability, Python (Programming Language), Machine Learning, Software Engineering, User Environment Management, Web Application Frameworks, Scripting, ReactJS, Flask (Web Framework), Backend, AngularJS, Information Technology, Tools for Reporting, Golang
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_fbb5f4be4072f88423fbb845d96d1df6

## About the Role

* 8+ years software engineering experience using one or more modern languages such as Java, C#, Go, C++, etc.
 * 8+ years software development experience on backend/infrastructure systems
 * Bachelor Degree in Computer Science required
 * Masters Degree or above in Computer Science strongly preferred
 * Proven experience as a Software Engineer with a focus on API, UI, and CLI development
 * Strong proficiency in programming languages including Golang, Python, Java, and Javascript
 * Experience with web frameworks (e.g., Flask, Django, React, Angular) for UI development and reporting frameworks (Superset, D3, Javascript) for analytic development
 * Familiarity with CLI development and automation scripting
 * Knowledge of machine learning concepts and frameworks
 * Excellent problem-solving and communication skills

## Description

Moloco is a machine learning company operating at massive scale (we ingest 10 petabytes of training data per day) and our models are blazingly fast (returning predictions in 10 milliseconds or less); and a profitable unicorn (we're valued at $2B & been profitable for the last 13+ quarters).

You will focus on building an advanced platform for operational machine learning to support Moloco's business growth within and across verticals. As a lead member of our platform team, you will play a pivotal role in designing, developing, and maintaining the application programming (API), user interface (UI), and command-line interface (CLI) components of our operational machine learning platform. This platform will enable Moloco to operate and grow multiple existing ml-based products at scale, while also expanding into new product areas and verticals.

The Opportunity:

Application Programming Interface (API) Design and Development:

 * Design, implement, and maintain robust and scalable APIs for operationalizing machine learning models.
 * Collaborate with infra engineers, product engineers, data scientists, machine learning engineers, and other stakeholders to define API requirements.

User Interface (UI) Development:

 * Develop responsive and user-friendly web-based interfaces for interacting with data and machine learning processes and platform features.
 * Implement data visualization and analytic tools to enhance user understanding and decision-making.

Command-Line Interface (CLI) Development:

 * Design and implement a command-line interface for seamless interaction with the platform, catering to advanced users and automation scenarios.
 * Ensure consistency between the CLI and other interfaces for a cohesive user experience.

Integration and Interoperability:

 * Collaborate with cross-functional teams to integrate machine learning models and algorithms into the platform.
 * Ensure interoperability between API, UI, and CLI components for a seamless end-to-end user experience.

Testing and Optimization:

 * Conduct thorough testing of API, UI, and CLI components to ensure functionality, security, and performance.
 * Optimize code and interfaces for efficiency and responsiveness.