Senior Software Engineer
Chargebee · Posted Oct 30
Subscription management, recurring billing, and revenue growth infrastructure services
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About the role
Chargebee provides billing and monetization solutions for recurring revenue businesses. Its AI Products team is building Chargebee Copilot and product experiences that bring the company's AI Agents platform to users. This full-stack Senior Software Engineer role involves building Python/FastAPI backend services and React/TypeScript interfaces, including APIs and screens for configuring and testing AI agents.
What you will do
- Chargebee Copilot — the conversational AI experience our users interact with, both backend and frontend
- Tools for configuring and testing AI agents, including the APIs and services behind them, so teams can build and tune agent behavior
- Design, build, and scale APIs (Fast API) that power Chargebee Copilot and related AI product tools
- Build the backend services that connect the UI to the AI Agents platform's APIs and MCP tools
- Build fast, responsive UI in React/TypeScript for chat and agent configuration screens, including streaming responses, rich text editing, and live previews
- Turn product requirements into clean code across both the backend and frontend
- Own your modules end to end, from API design through UI implementation to production support
- Work closely with designers, PMs, and the platform team to ship good AI experiences
- Improve performance, reliability, and security for real-time, LLM-backed services
- Help improve team practices through code reviews and shared learning.
Skills used in this role
What the employer is looking for
- 4+ years of hands-on software development experience
- Strong backend skills in Python (Fast API or similar), including designing and building scalable async APIs
- Strong React/TypeScript skills, especially building dynamic, real time UIs with streaming and state management
- Genuine full stack range — you're equally comfortable owning a backend service and the UI in front of it
- Good debugging skills and attention to detail across the stack
- A product mindset — you care about why you're building something, not just how
- Comfort working with a platform or API you don't own, including reading docs and working within someone else's contracts and constraints
- Daily hands-on use of AI coding tools, and a good sense of when they help and when they don't
- A clear line between AI-generated code and production-ready code — you review, test, and own everything you ship
- The ability to write clear, specific prompts that get consistent, good output from LLMs
- A habit of breaking work into small, reviewable chunks instead of accepting large AI-generated changes all at once
- Genuine curiosity about how agents, tool calling, and conversational UX work under the hood
Preferred qualifications
- some working understanding of how agents and tools fit together in the LLM world — things like tool calling, agent-to-agent or agent-to-tool communication, and how context gets passed around in these systems
- Bonus points for experience building products on top of LLM platforms or AI agent frameworks, or for building the backend and UI for builder style tools like form builders or workflow editors
Benefits and support
- Health & Wellness: Robust coverage and access to programs to support your physical and mental well-being.
- Financial Security: Initiatives to help you build long-term financial stability.
- Work-Life Balance: Flexible options and resources to help you thrive both professionally and personally.
About Chargebee
Chargebee is a subscription management and recurring billing platform that automates revenue operations, invoicing, payments, and compliance for high-growth businesses. Its platform helps enterprises manage complex subscription lifecycles, usage-based pricing, and global tax configurations. Trusted by thousands of global innovators, Chargebee streamlines financial workflows from early-stage operations to multi-year enterprise contracts.
- Industry
- SaaS
- Company size
- 1000-5000 employees
- Founded
- 2011
- Location
- San Francisco, California, USA
- Funding stage
- Series H
Funding
Series H · $475M raised
- 2024-03-08Series H$5M
- 2022-02-01Series H$250M
- 2021-04-01Series G$125M
- 2020-10-01Series F$55M
- 2019-08-01Series D$14M
- 2018-03-01Series C$18M
Leadership
CEO & Co-Founder
CPO & Co-Founder
CTO & Co-Founder
Chief Financial Officer
Recent coverage
Chargebee Blog
Chargebee Named a Leader in 2026 Gartner® Magic Quadrant™ for Recurring Billing Applications for the Third Consecutive Year2026-08-18
Chargebee Blog
Chargebee and Twikey Partner to Connect Billing Directly With Bank Payments2026-07-15
Chargebee Blog
Agicap Selects Chargebee to Power Its Next Phase of Global Growth2026-03-10
Chargebee Blog
Chargebee Acquires Inai to Supercharge AI-Powered Payments Intelligence2025-09-15