Staff Engineer, Full Stack Developer

Bill
360 is a cloud-based platform solving major pain points in the B2B payments and billing space. We are looking for a Senior Full Stack Engineer / Architect to help drive the design and delivery of platform-level solutions while still building customer-facing and internal product features.

This role is ideal for an engineer who enjoys working across the stack (front-end + APIs + data + cloud infrastructure) and is comfortable owning technical direction, improving engineering standards, and mentoring others.

Our platform includes:

• Vue.js front-end applications
• .NET-based microservices
• AWS hosting and services, including a mix of traditional infrastructure and serverless patterns
• CI/CD pipelines, monitoring, logging, and operational readiness as a core expectation

Bill
360, Inc. is a fast-growing financial technology company, developing cloud-native software that automates critical financial processes. At Bill
360, you’ll be working in a collaborative environment alongside fintech experts who are passionate and innovative. We embrace challenge and foster creativity within a culture that helps you develop as a person and a professional. Our leadership team believes in an open-door policy and full transparency, hosting monthly town hall meetings. Bill
360 doesn’t just offer you a job, we offer you a chance to learn, grow, and create a career you can be proud of.

Bill
360 is unable to support requirements for remote work in the following states:

As a Staff Engineer, you are a senior technical leader and architect-level individual contributor responsible for the technical direction, health, and delivery of a core domain within the Bill
360 platform. You lead through hands‑on engineering, architectural ownership, and influence
, ensuring solutions scale with the business while remaining reliable, secure, and maintainable.

• Own the technical vision and architecture for a core platform domain, ensuring alignment with business strategy, product direction, and operational realities.
• Design, evolve, and steward API‑first and event‑driven architectures
  , enabling reliable, scalable communication across the AR and payments ecosystem.
• Act as a technical authority for architectural decisions that span multiple services or teams, clearly articulating trade‑offs and long‑term implications.
• Participate in the Architecture Review Board
  , reviewing designs beyond your immediate scope and providing clear, actionable feedback that raises the bar across the organization.
• Anticipate system‑level risks and proactively guide architectural decisions to prevent performance, scalability, or reliability issues before they emerge.
• Lead by example through direct contribution to production code
  , delivering complex, high‑impact features across the full stack.
• Perform end‑to‑end development across:
  • Front‑end applications (Vue.js)
  • Back‑end services (.NET Core)
  • Event‑driven and serverless components (AWS Lambda using Type Script/JavaScript)
• Break down large initiatives into well‑scoped, incremental deliverables
  , avoiding monolithic releases and enabling predictable, low‑risk execution.
• Consistently deliver high‑quality software with accurate estimates, clear milestones, and dependable follow‑through
  .
• Own technical outcomes for projects, including testing strategy, performance, reliability, and production readiness
  .
• Architect, build, and operate production workloads on AWS
  , ensuring high availability, fault tolerance, scalability, and security.
• Partner closely with Dev Ops and platform teams to improve:
  • CI/CD pipelines
  • Observability (logging, metrics, tracing)
  • Performance optimization and cost efficiency
• Identify and address technical debt proactively
  , preventing localized issues from becoming systemic platform risks.

• Collaborate closely with Product Managers, Designers, and Subject Matter Experts to translate business needs into technically sound, user‑focused solutions
  .
• Balance architectural rigor with delivery pragmatism, guiding teams toward decisions that optimize long‑term platform health and customer value
  .
• Lead technical planning and feature decomposition, ensuring…