Senior Front-End Engineer (React + Foundry)

Kelly Mitchell; Oakland (CA); Hybrid; USD 72,000 - 103,000; Full time

Benefits offered by this job

Medical, Dental, & Vision Insurance

Employee-Owned Profit Sharing (ESOP)

401K offered

Job summary

KellyMitchell is seeking a Senior Front-End Engineer (React + Foundry) to join our energy-sector client on the WiRE platform, a Palantir Foundry-based data platform supporting wildfire mitigation and compliance reporting. You will build data-driven interfaces that enable users to explore, validate, and extract trusted data for internal reporting and regulatory submissions.

The role involves building enterprise-grade React/TypeScript apps, integrating with Foundry datasets, and collaborating with

Qualifications

• Proven experience building enterprise front-end applications with React and TypeScript.
• Ability to design data-driven interfaces that integrate with APIs and datasets.
• Understanding data modeling concepts and performance considerations for large datasets.
• Experience working in regulated environments or with auditability requirements is a plus.

Responsibilities

• Build and maintain React and TypeScript applications hosted within Palantir Foundry.
• Develop reusable UI components for data exploration, filtering, drill-downs, validation, and extraction.
• Integrate frontend applications with Foundry Ontology objects and structured datasets via SDKs and APIs.
• Collaborate with backend engineers to align data contracts and evolving data schemas.
• Design interfaces that support auditability, traceability, and regulatory reporting with validated backend data.
• Build file upload, schema validation, and submission workflows with clear validation feedback and logs.
• Partner with data engineers, product managers, PMO stakeholders, and SMEs through Agile planning.

Skills

React

TypeScript

APIs integration

Data modeling concepts

Frontend performance

Tools

Palantir Foundry

SDKs & APIs

Job description

Job Summary

Our client, a leading energy provider, is seeking a Senior Front-End Engineer (React + Foundry) to join their team. This role supports the WiRE platform, a Palantir Foundry-based data platform supporting wildfire mitigation and compliance reporting. The engineer will build data-driven interfaces that enable users to explore, validate, and extract trusted, auditable data for internal reporting and regulatory submissions.

Contract Details

Type: Contract Duration: From November 2, 2026, through March 27, 2027, Location: Oakland, CA Work Model: Remote, onsite attendance required as needed.

Core Responsibilities

• Build and maintain React and TypeScript applications hosted within Palantir Foundry
• Develop reusable UI components for data exploration, filtering, drill-downs, validation, and extraction
• Integrate frontend applications with Foundry Ontology objects and structured datasets through SDKs and APIs
• Collaborate with backend engineers to define data contracts and keep interfaces aligned with evolving data schemas
• Design interfaces that support auditability, traceability, and regulatory reporting requirements while relying on validated backend datasets
• Build file upload, schema validation, and submission workflows with clear validation feedback and detailed logs
• Partner with data engineers, product managers, PMO stakeholders, and subject matter experts through Agile planning and delivery cycles

Required Skills/Experience (Must-Haves)

• Strong experience developing enterprise applications using React
• Proficiency in TypeScript
• Experience building data-driven, API-integrated frontend applications
• Understanding of data modeling concepts, including schemas and structured datasets
• Knowledge of frontend performance considerations when working with large datasets

Preferred Skills/Experience (Nice-to-Haves)

• Experience with Palantir Foundry or similar data platforms
• Experience integrating SDKs and APIs for structured data access
• Familiarity with ontology-based or metadata-driven systems
• Exposure to compliance, audit, or regulated environments
• Experience with data validation or data quality frameworks
• Experience developing internal enterprise tools or platforms

Key Competencies & Behaviors

• Strong collaboration across engineering, product, and business stakeholder teams
• Attention to detail when translating data and reporting requirements into user interfaces
• Analytical problem-solving skills for data integration, validation, and performance challenges
• Clear communication of technical requirements and implementation decisions
• Adaptability to evolving data schemas and iterative delivery priorities

Work Environment

Location: Oakland, CA Work Model: Primarily remote, with onsite attendance required as needed. Contract Duration: November 2, 2026–March 27, 2027.

Compensation & Benefits

Pay Range: The approximate pay range for this position is between $52.00 and $75.00 per hour. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.

• Medical, Dental, & Vision Insurance Plans
• Employee-Owned Profit Sharing (ESOP)
• 401K offered

About KellyMitchell

At KellyMitchell, our culture is world class. We’re movers and shakers! We don’t mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment's notice.