Senior .NET Backend Engineer – Remote Payments & Commerce

Remote; San Francisco (CA); Remote; USD 180,000 - 280,000; Full time

Benefits offered by this job

Remote-first culture

Competitive compensation

Flexible Paid Time Off

Home office setup support

Remote work stipend

Job summary

LastPass is seeking a Senior Backend Engineer (.NET) to evolve commerce and payment platforms powering subscriptions. You will modernize services, deliver reliable payment integrations, and ensure scalable, secure experiences for customers globally.

You will work with .NET engineers, QA, DB developers, and engineering leadership to design, test, and support commerce and payment services. The role emphasizes collaboration, security, and performance at scale.

Qualifications

• Proven experience in C# and .NET Core for web application development.
• Proven experience in REST API design, creation, and consumption.
• Proven experience with relational databases and Entity Framework Core.
• Solid grounding in OOP best practices, containerisation with Docker, and web security principles.
• Proven experience designing and operating microservice architectures.
• Recognised internally as a clear and confident communicator, able to engage technical and non-technical stakeholders with equal ease.
• Approaches complex challenges with a team-first mindset, bringing creative problem-solving and consistent follow-through.

Responsibilities

• Design and implement scalable .NET services and REST APIs that power commerce and payment capabilities for LastPass customers worldwide
• Deliver payment gateway integrations and regional payment method support, expanding reach and reliability for LastPass subscribers
• Contribute to planning, design, and feature delivery in close collaboration with a cross-functional engineering team
• Advocate for non-functional requirements and cost-effective solutions, developing, testing, and maintaining services within your domain
• Collaborate across teams, engage in technical decision-making, and help influence the platform’s architectural direction
• Coach and mentor engineers at various levels, raising the bar for engineering quality and team capability
• Contribute to a customer-facing application, shaping it with new features that meet evolving user needs and business objectives

Skills

C# / .NET

REST API design

Relational databases / EF Core

Docker / containerization

Microservices architecture

OOP principles

Communication with stakeholders

AWS cloud services

Security best practices

Tools

Docker

AWS

Job description

LastPass is seeking a Senior Backend Engineer (.NET) to evolve commerce and payment platforms powering subscriptions. You will modernize services, deliver reliable payment integrations, and ensure scalable, secure experiences for customers globally.

You will work with .NET engineers, QA, DB developers, and engineering leadership to design, test, and support commerce and payment services. The role emphasizes collaboration, security, and performance at scale.