Senior Software Development Engineer, Backend

WillHire

full-time

Posted on: 9/27/2025

Location Type: Hybrid

Location: Pleasanton • California • 🇺🇸 United States

✨ AI Apply

💰 $172,800 - $259,200 per year

Senior

AWSCloudDistributed SystemsDockerJavaScriptKubernetesNode.jsPostgresRDBMSReactTypeScript

About the role

Lead Backend Development: designing and developing the backend systems for the Flowise application; writing clean, efficient, and well-tested code for the server, APIs, and data models.
Improve and Execute: help improve backend services across open-source, cloud, and enterprise versions focusing on latency, stability, developer experience, test coverage.
Collaborate and Implement: partner with leaders and teams across frontend, product to identify backend software requirements and implement solutions.
Drive Code Quality: participate in code reviews, provide constructive feedback, and mentor other engineers.
Navigate Ambiguity: proactively identify and resolve issues within backend systems to ensure optimal functionality.

6+ years of professional software engineering experience.
6+ years of hands-on experience with our core stack: JavaScript/TypeScript, Node, React, Express, Turbo (Flowise is a monorepo).
4+ years of experience with PostgreSQL or other RDBMS, strong understanding of performance optimization and scaling strategies.
Experienced in API design, architecting backend systems, database modelling, OOP, ERD diagrams.
Experienced in building and operating SaaS products in cloud environments (AWS preferred).
Experienced in the technologies and tradeoffs involved in building modern distributed systems.
Advanced knowledge of modern software development practices (devops, automated testing, observability, etc).
Proficient in containerization (Docker, Kubernetes).
Successful track record of operating as part of multi-functional teams in fast-paced, agile environments.
Highly effective communicator with both technical and non-technical audiences.
Excellent interpersonal skills, with the ability to collaborate effectively.
Comfortable navigating ambiguity to turn hard problems into clear and compelling solutions through reasoning and research.
Eager to work openly and collaboratively with a diverse team.

Benefits

As a part of the total compensation package, this role may be eligible for the Workday Bonus Plan or a role-specific commission/bonus, as well as annual refresh stock grants.
For more information regarding Workday’s comprehensive benefits, please click here .
Flex Work: spend at least half (50%) of our time each quarter in the office or in the field with our customers, prospects, and partners (depending on role).

Tip: use these terms in your resume and cover letter to boost ATS matches.

JavaScriptTypeScriptNodeReactExpressPostgreSQLAPI designOOPdatabase modellingperformance optimization

communicationinterpersonal skillscollaborationproblem-solvingmentoringconstructive feedbacknavigating ambiguityreasoningresearchteamwork