Sr Software Engineer – API Platform, Product Engineering (Python/Typescript)

The available sources do not contain information about the company name for rounx.com.; United States; Hybrid; USD 176,000 - 264,000; Full time

Job summary

Workday is seeking a Senior Software Engineer to join the API Platform team within Product Engineering. You will lead design and development of high-throughput, low-latency APIs, backend services, and frameworks supporting Workday’s next-generation products and AI-driven scenarios.

The ideal candidate has 8+ years in software development, 5+ years in object-oriented modeling and software design, and 4+ years designing scalable APIs.

Qualifications

• 8+ years of software development experience with 5+ years in object-oriented modeling and software design.
• 4+ years designing scalable APIs.
• Proficiency in Python and TypeScript.
• Experience with REST, GraphQL, SOAP, OpenAPI, and domain-driven design.
• Strong testing, code quality, and technical documentation skills.
• Experience with AI-assisted tools and agent integration models is a plus.

Responsibilities

• Lead design and development of high-throughput, low-latency APIs, backend services, and frameworks.
• Shape API architecture, drive performance improvements, and ensure scalable, reliable API standards.
• Mentor junior engineers and collaborate with internal teams across divisions.
• Translate product requirements into service boundaries and design API endpoints.
• Implement observability features and contribute to large-scale systems with high availability.

Skills

Python

TypeScript

Object-oriented modeling

Software design

REST

GraphQL

SOAP

OpenAPI

Domain-driven design

Testing methodologies

Code quality

Technical documentation

Mentoring

Job description

We are seeking a Senior Software Engineer to join our API Platform team within Product Engineering. The role involves leading the design and development of high-throughput, low-latency APIs, backend services, and frameworks that support Workday’s next-generation products and AI-driven scenarios. You will shape API architecture, drive performance improvements, and mentor junior engineers while collaborating with internal teams to ensure consistent, scalable, and reliable API standards. Responsibilities include translating product requirements into service boundaries, designing API endpoints, implementing observability features, and contributing to large-scale systems requiring high availability and operational excellence.

The ideal candidate has 8+ years of software development experience, with 5+ years in object-oriented modeling and software design, and 4+ years designing scalable APIs. Proficiency in Python and TypeScript is required, along with experience in REST, GraphQL, SOAP, OpenAPI, and domain-driven design. Strong skills in testing methodologies, code quality, and technical documentation are essential. Experience with AI-assisted tools and agent integration models is a plus. The position offers a competitive salary range of $176,000–$264,000 annually, with flexible work arrangements allowing for a mix of in-office and remote work.