Senior Full Stack Software Engineer (Billing)

Bitwarden Inc.; California (MO); Remote; USD 140,000 - 200,000; Full time

Job summary

A leading company specializing in identity security is seeking a Senior Full Stack Software Engineer to manage payment infrastructures. This remote role focuses on developing billing systems, requiring extensive experience in .NET, Angular, and database optimization, offering a competitive salary and opportunities for professional growth.

Qualifications

• Extensive experience with .NET Core and C# for backend services.
• Strong proficiency with Angular, TypeScript, and RxJS for front-end development.
• Deep understanding of relational database design and optimization.

Responsibilities

• Design, develop, and maintain billing and subscription management systems.
• Architect and implement secure payment processing flows.
• Lead integration of payment provider APIs.

Skills

.NET Core

C#

Angular

TypeScript

RxJS

Database optimization

SQL Server

Problem-solving

API design

Security best practices

Job description

Senior Full Stack Software Engineer (Billing)

Remote, U.S.

Bitwarden is the trusted identity security leader for millions of users worldwide, empowering enterprises, developers, and individuals to securely manage and share sensitive information anywhere. Bitwarden makes it easy for all users to extend robust security across their devices with password management, secrets management, and passwordless and passkey innovations. The company is headquartered in Santa Barbara, California. Learn more at bitwarden.com.

As a Senior Full Stack Engineer specializing in Bitwarden’s billing systems, you will lead the design and development of the payment infrastructure that powers Bitwarden's subscription services for millions of users worldwide. You'll own critical revenue-generating systems while solving complex technical challenges at the intersection of security, scalability, and user experience. This role offers unique opportunities to make significant contributions to both our open-source community and enterprise solutions.

This is a fully remote team, and we’re looking for someone located in the U.S. We do not offer visa sponsorship at this time.

RESPONSIBILITIES

1. Design, develop, and maintain scalable billing and subscription management systems that process transactions for millions of global users
2. Architect and implement secure payment processing flows across web applications, APIs, and database systems
3. Lead the integration of multiple payment provider APIs and webhooks to support global payment methods
4. Troubleshoot and resolve complex billing-related customer issues that require deep technical knowledge of our systems
5. Optimize database queries and application performance to handle large transaction volumes

WHAT YOU BRING TO BITWARDEN

• Extensive experience with .NET Core and C# for backend services
• Strong proficiency with Angular, TypeScript, and RxJS for front-end development
• Deep understanding of relational database design, optimization, and SQL Server
• Experience integrating with payment processors like Stripe, PayPal (Braintree), and Bitpay, and implementing their corresponding webhook handlers
• Knowledge of security best practices for handling sensitive payment information
• Demonstrated ability to design and implement RESTful APIs
• Collaborative and adaptable mindset
• Openness and authenticity combined with excellent communication skills
• Excitement and enthusiasm for open source and for better internet security
• Excellent problem-solving skills – you might not know all the answers, but you know how to find and communicate the solution

NICE-TO-HAVES

• User of Bitwarden
• Startup experience
• Experience in Node.js and Electron
• Experience with Rust

Our user community loves us, and we love them. Come to work each day with a sense of purpose as we bring a more secure internet experience to everyone, from our friends and family to the world’s largest organizations.

Become an expert. You’ll get immersed in the prominent technology markets of security and open source software.

We are dedicated to building a diverse and talented team. Work remotely with motivated and supportive team members across the world.

Learn and grow. Take on new challenges with the support of your team, and join our #growth-club to continue personal and professional development.

In the United States, the starting base compensation range for this role is $140,000 - $200,000. Actual compensation may vary based on level, relevant experience, and skill set as assessed in the interview process, as well as market data by location. See our careers page for a list of benefits. Please note that compensation outside the U.S. will differ based on the market.