Software Engineer - Core Interfaces

Palantir Technologies•New York, NY

15h•Hybrid

About The Position

Palantir builds applications that help customers organize, understand, and make decisions based on their data. Because these applications serve different roles within an organization's workflow, users frequently have multiple applications open at once, and expect them to work together seamlessly. While backend services handle much of this coordination, delivering a truly fast and responsive experience requires applications to also directly interact with each other through client-side frameworks running in the browser. Building these frameworks is uniquely challenging: every Palantir application plays a distinct role and has its own set of first-class UX concepts, yet the frameworks need to integrate cleanly into all of them. Success requires both strong API design skills and a keen eye for user experience. The frontend frameworks our team builds serve a variety of functions across Palantir's application ecosystem. Some frameworks integrate deeply with the Palantir Ontology—a foundational layer that provides a schema for defining objects and relationships between them. These frameworks enable real-time data synchronization across applications: for example, when a user selects an Ontology object on a map, data plots in a different application instantly update to show that object's properties. Other frameworks operate independently of the Ontology: for example, one framework allows applications to define custom behaviors that can be invoked by other applications or even by AI agents, giving them the flexibility to expose arbitrary functionality across the platform.

Requirements

2+ years of frontend software engineering experience
Strong frontend coding skills: proficiency in JavaScript and an understanding of how web technologies work
Bachelor's degree in Computer Science or related field, or equivalent understanding of algorithms, performance, and systems design
Strong written and verbal communication skills
Eligibility and willingness to obtain a US Security clearance

Nice To Haves

Passion for collaborating across teams and quickly ramping up on unfamiliar codebases
Creative problem-solving skills and excitement about designing novel user interactions
Experience building high-quality software in a fast-paced CI/CD development environment
Ability to ramp up quickly and autonomously; willingness to learn continuously, work independently, and make decisions with minimal supervision
Drive to unlock and improve user workflows while maintaining engineering quality

Responsibilities

Work with cross-application frameworks end-to-end, from the low-level technical implementation to high-level UX decisions.
Work extensively with core web APIs—Broadcast Channels, Service Workers, Local Storage—to enable real-time communication between applications.
Help develop an Electron application that extends and enhances these workflows through Electron-specific capabilities, such as the IPC API.
Build relationships with teams across the company and develop a deep understanding of different codebases and their architectural patterns.
Design APIs that are ergonomic and portable enough to slot into any application that adopts them, while also being powerful enough to enable complex user interactions.
Ensure the interactions these frameworks enable feel native and intuitive regardless of which applications a user has open.

Benefits

Medical, dental, and vision insurance
Voluntary life insurance
Basic life, AD&D and disability insurance
Commuter benefits
Relocation assistance
Take what you need paid time off
2 weeks paid time off built into the end of each year
10 paid holidays throughout the calendar year
Supportive leave of absence program including time off for military service and medical events
Paid leave for new parents
Subsidized back-up care for all parents
Fertility and family building benefits including but not limited to adoption, surrogacy, and preservation
Stipend to help with expenses that come with a new child
401k plan