Staff Software Engineer

Atomic is building a more connected financial landscape that enables consumers to connect their payroll and financial data to services that will better their financial lives.

At Atomic we're focused on building an incredible business while also having a huge social impact. We work with 8 of the top 10 financial institutions and 13 of the top 20 neobanks in the country to deliver exceptional user experiences and help people manage their money.

• Set technical direction: Own the architecture and high-level design for new services and critical system evolutions, ensuring scalability, observability, and fault tolerance.

• Embrace cradle-to-grave stewardship: craft the design, guide it through delivery, and stand behind it in production, continuously validating with SLIs/SLOs and blameless post-mortems.

• Lead by example: Deliver production code daily—primarily in Node.js/TypeScript—and champion best practices in testing, CI/CD, documentation, and incident response.

• Mentor & multiply: Coach senior and mid-level engineers, provide actionable feedback, and foster a culture of learning, psychological safety, and engineering excellence.

• 8 + years of professional software engineering experience, including 2 + years at a Staff or Tech-Lead level influencing multiple teams.

• Deep expertise in Node.js and JavaScript/TypeScript plus strong knowledge of modern JS tooling, build systems, and package management.

• Hands-on experience designing cloud-native systems on AWS (ECS / EKS, Lambda, DynamoDB, Aurora, or similar, SQS/SNS, IAM).

• Ability to translate complex technical trade-offs to non-technical stakeholders and drive alignment across Engineering, Product, and SRE.

• Passion for mentoring, constructive code review, and fostering an inclusive, high-impact culture.

• Prior experience in fintech, payroll, or other regulated domains.

• Formal background in security engineering or compliance audits (PCI, SOC 2, FedRAMP).

• Familiarity with Infrastructure-as-Code and pipeline development (GitHub Actions, Terraform, AWS CodePipeline, CloudFormation)

• Exposure to Temporal, MongoDB/Document DBs, or graph databases.

At Atomic, we're building financial connectivity that enables the fintech and financial services ecosystem to connect consumers to the data in their payroll accounts, drive conversions of direct deposit linked products, verify income and employment history in real-time, update the card-on-file in merchants, and manage their subscriptions and bills.

We believe consumers should be able to easily share their own payroll data to improve their financial outcomes. However, connecting to the data is cumbersome, met with non-specialized solutions, which is why we founded Atomic.

Signing up for a mortgage? We make it so you can submit your paystub and W-2 in seconds. Getting a credit card? We can verify you're employed in real-time. Switching banks? We can instantly and securely move your direct deposit to the financial institution of your choice.

We build user-permissioned connectivity into payroll and merchant systems. Our products are used by some of the largest financial brands in the world, and we're funded by some of the best investors in the world, including Greylock (investor in LinkedIn, Nextdoor, Airbnb, and others), Core Innovation Capital (invested in Ripple, Nerd Wallet, and others), and Portag3 (invested in WealthSimple, Albert, and others).

Our team has been the reason for our success thus far, and it will be the reason we continue to succeed. We're looking to continue to grow our world-class team to shape the tomorrow of Atomic.

• Innovative - we're on the bleeding edge of the fintech space empowering some of the coolest brands in the world.

• Transparent - we believe in being transparent with everyone in our company. Feel free to ask how we deliver on this promise during the interview process.

• Customer-centric - we're wild about our customers.

• Fun - We all spend a big portion of our lives with colleagues, so we want it to be fun. Our last company activity was a virtual escape room. Each team competed and we had a blast!

Atomic is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.