Senior Software Engineer

Lob was founded in 2013 by technical co-founders with a vision to connect the world one mailbox at a time. Today, we're transforming the way businesses use direct mail and bringing the power of technology to a traditionally manual channel. Our modern logistics and fulfillment engine helps businesses to build and scale high-quality, personalized direct mail programs without the operational burden. As we grow to meet the evolving needs of our customers and expand our product offerings, we’re building a team to shape the future of direct mail. Senior Software Engineer - Billing As a Software Engineer at Lob, you’ll contribute to several applications related to Billing using primarily Node.js, Go, and Vue.js. You’ll work in a Service-Oriented Architecture with resources on AWS, leveraging SQS queues and Lambda functions. We maintain a culture of high collaboration, psychological safety, and performance where individuals can thrive and gain meaningful experience to elevate their career potential. As a Senior Software Engineer, you’ll… Contribute to the development of billing and payments solutions. Collaborate with other engineers to develop solutions for business cases. Build and maintain integrations with internal and external payment and accounting systems. Build resilient, observable services running on AWS using SQS, Lambda, and related infrastructure; own runtime reliability and incident response for services you ship. Partner with product, finance, and cross-functional engineering teams to translate business requirements into technical solutions. Drive adoption of automated tests, CI/CD, and robust deployment practices. Write clear technical design docs and user-friendly operational runbooks for both technical and non-technical stakeholders. Coach and mentor engineers, contribute to hiring, and help raise the team’s engineering standards. Leverage AI-assisted development tools and techniques to accelerate coding, testing, documentation, and debugging while applying best practices for responsible and secure AI use. What will you bring to this role… 4–8 years as a software engineer (senior-level preferred). Strong experience with Node.js and/or Go; familiarity with Vue.js or similar frontend frameworks. Experience with relational DBs such as Postgres, MySQL, or SQL Server, and familiarity with NoSQL/kv stores such as Redis. Experience with job/queueing systems (SQS, Kafka, Kinesis, or similar). Strong background building and operating RESTful and RPC-style APIs and integrating third-party APIs. Familiarity with unit and automated testing frameworks and test-driven development practices. Practical experience using AI-assisted development tools for code generation, test creation, debugging, documentation, or developer productivity, plus an understanding of risks and mitigations. Strong problem-solving, attention to detail, and clear written and verbal communication. Demonstrated ability to take end-to-end ownership of features and services in production. Hands-on experience with Terraform, CloudFormation, or other IaC. Experience with metrics, distributed tracing, and centralized logging tools. Experience optimizing high-throughput, latency-sensitive workloads. At Lob, we are looking to #LevelUp and #EmpowerDiversity, we invite you to apply if you possess even some of these: Eagerness to learn new technologies and solve complex problems. Experience with debugging applications and identifying issues. Since great engineers come from a variety of backgrounds, it doesn’t particularly matter if you have a specific degree—we want to hear about your contributions in a real-world setting. Compensation information The compensation for this role consists of a base salary + additional RSUs. Annual Base Salary: $170,000 - $195,000 “Lob’s salary ranges are based on market data, relative to our size, industry and stage of growth. Salary is one part of total compensation, which also includes equity, perks and competitive benefits. Salary decisions are based on many factors including geographic location, qualifications for the role, skillset, proficiency and experience level. Lob reasonably expects to pay candidates who are offered roles within the provided salary ranges.” We offer remote working opportunities in AZ, CA, CO, DC, FL, GA, IA, IL, MA, MD, MI, MN, MT, NE, NC, NH, NJ, NV, NY, OH, OR, PA, RI, TN, TX, UT, and WA, unless specified otherwise in the job description above. If you are looking for a progressive, fun-spirited, and mentally stimulating environment, come join us at Lob! Our Commitment to Diversity Lob is an equal opportunity employer and values diversity of backgrounds and perspectives to cultivate an environment of understanding to have greater impact on our business and customers. We encourage under-represented groups to apply and do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or criminal history in accordance with local, state, and/or federal laws, including the San Francisco’s Fair Chance Ordinance . Recent awards #88 on BuiltIn's Best Remote Midsize Companies to Work For in 2025 BuiltIn Best Remote Midsize Companies to Work For in 2024 BuiltIn Best Midsize Companies to Work For 2022