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BILL · 12 hours ago

Senior Full-Stack Software Engineer

San Jose, California, United States

Full-time

Hybrid

Senior Level

$149K/yr - $178K/yr

5+ years exp

BILL is a rapidly growing Fintech company focused on empowering businesses through innovative financial tools. As a Senior Software Engineer, you will architect and scale solutions for multi-entity account payable workflows, collaborating with cross-functional teams to enhance operational efficiency and product quality.

AppsBillingFinancial ServicesFinTechSaaS

No H1B

Responsibilities

Design, develop, and maintain robust, scalable software solutions for multi-entity account payable workflows

Collaborate cross-functionally with product managers, designers, and other engineers to translate business requirements into technical deliverables

Analyze complex problems, break them down into manageable components, and implement effective, maintainable solutions

Contribute to code reviews, share technical knowledge, and mentor junior team members to elevate team performance

Proactively identify areas for process and system improvements, recommending and implementing enhancements to drive product quality and efficiency

Ensure solutions adhere to best practices in security, reliability, and performance

Stay current with industry trends and emerging technologies, bringing new ideas to the team

Qualification

Full-Stack ProficiencyMulti-Entity SaaS platformsAI Driven DevelopmentGraphQLAWSMicroservicesCI/CDSystems ThinkingTechnical StrategyCollaborationMentoring

Required

Bachelor's degree in Computer Science or a related field (Master's a plus); typically 5+ years of professional software engineering experience

Strong understanding of large-scale web applications and distributed systems—including deployment, capacity planning, monitoring, and incident management

Proven ability to evaluate trade-offs and collaborate across teams on complex technical and business initiatives

Experience leading technical strategy for Multi-Entity SaaS platforms, with demonstrated success in scaling systems to support millions of mission-critical transactions

Full-Stack Proficiency: Hands-on experience with Angular, React or similar for front-end, and Java or TypeScript/Node.js or similar for back-end services

AI Driven Development: Experience leveraging Gen AI technologies to accelerate software engineering by designing prompts, rigorously evaluating outputs, and integrating LLMs

Technical Breadth: Working knowledge of GraphQL, AWS (Lambda, DynamoDB, S3, SNS/SQS), microservices, and API gateway patterns

Systems Thinking: Strong understanding of large-scale web applications, distributed systems, monitoring, and CI/CD (GitHub Actions, Jenkins)