Senior Full Stack Engineer

A platform that automates billing, revenue recognition, and SaaS metrics in one unified system. It's built from the ground up to handle the complexity of usage-based and custom contracts without spreadsheets or manual overhead. The company is backed by marquee global investors. Having successfully built the product, the company is now scaling its core team and looking for curious, driven individuals excited to co-build its next phase.

About the Role

As a Senior Full Stack Engineer, you will drive end-to-end ownership of product features, spanning from data model design to intuitive user interfaces. This pivotal role bridges engineering and product, transforming complex enterprise workflows into seamless, high-quality experiences. You will champion user experience, ensuring vertical ownership and advocating for optimal design and functionality.

Key Responsibilities

• Drive end-to-end ownership of product features, including complex configuration UIs, workflow builders, and operational dashboards for enterprise users.
• Develop and maintain critical customer-facing surfaces such as SDKs, embeddable flows, and APIs.
• Architect robust frontend solutions, encompassing component structure, state management, performance optimization, and accessibility.
• Design and implement backend APIs and data models for owned features, ensuring seamless full-stack integration.
• Diagnose and resolve production issues across the entire stack, from symptom identification to root cause resolution.
• Collaborate cross-functionally with design, product, and customer success to integrate user feedback.
• Partner with GenAI engineers to integrate AI capabilities into clean, intuitive product interfaces.
• Lead and contribute to code and design reviews, establishing high standards for full-stack engineering quality.

Qualifications

• 5+ years of professional software development experience with significant depth in both frontend and backend technologies.
• Bachelor's degree in Computer Science or a related field, or equivalent practical experience, with strong fundamentals in data structures, algorithms, operating systems, and networking.
• Proven ability to articulate complex technical problems solved across the full stack, detailing the rationale, tradeoffs, and outcomes.
• Extensive experience designing, owning, and maintaining production-grade APIs, services, and data models.
• Demonstrated experience building product-quality frontend UIs, including component architecture, state management, and responsive design, with the ability to lead UI development independently.
• Strong product sense, capable of identifying and addressing user experience issues even when underlying code is functionally correct.
• Deep understanding of web fundamentals, including browser rendering, performance optimization, and accessibility best practices.
• Expertise in TypeScript, including designing and implementing type-safe architectural solutions.
• Hands-on experience optimizing performance across the full stack, covering frontend rendering/bundle size and backend query/API latency.
• Strong design sensibility to translate wireframes or low-fidelity specifications into polished user interfaces without direct designer oversight.
• Experience with B2B SaaS or enterprise software, understanding complex enterprise workflows and user expectations.
• Prior experience in early-stage startup environments, comfortable with rapid iteration and shipping with limited design/product support.
• Practical experience with cloud platforms, preferably AWS.
• Demonstrated commitment to testing culture, including end-to-end (e.g., Cypress, Playwright) and comprehensive unit testing.
• Familiarity with AI-assisted development tools (e.g., GitHub Copilot, Cursor).
• Experience with financial systems, billing platforms, or fintech applications.
• Knowledge of SaaS business models and relevant compliance frameworks.

Benefits & Perks

• Drive significant improvements in user experience across the product with your strong design sensibility.
• Play a foundational role in establishing the full-stack engineering culture and architectural patterns for the team.
• Participate in the company's growth through ESOPs (Employee Stock Ownership Plans).