Senior Software Engineer

This is a fully remote position, open to applicants in United States.

📋 Description

• Enhance the current API-first full-stack platform that connects employers, employees, and payroll systems.

• Collaborate with the existing engineer to extend the platform in preparation for the January 1, 2027 launch.

• Integrate with payroll and HRIS providers via Finch, including ADP Workforce Now, Dayforce, Workday, and UKG.

• Develop direct integrations for providers that cannot be reached through an aggregator, starting with Rippling.

• Manage assisted provider connections and pending deduction states.

• Maintain and expand a provider-agnostic integration layer.

• Create employee enrollment processes and employer campaign and dashboard tools on a multi-tenant platform.

• Implement employer single sign-on using OIDC, SAML 2.0, or email-code fallbacks.

• Verify the IRS list of eligible scholarship granting organizations during designations and deductions.

• Capture the employee’s state at the time of payment.

• Design background job pipelines that include status tracking, retries, dead-letter handling, error visibility, webhook ingestion, and drift detection.

• Support money movement and reconciliation using payment and ledgering providers, such as Modern Treasury.

• Match payroll deduction files and ACH remittances to enrollments while maintaining audit trails.

• Develop compliance-aware year-end acknowledgment generation and delivery workflows.

• Track document delivery status and recover from failures.

• Implement security practices for sensitive employee and financial data, including data minimization and hashed identifiers.

• Make and document architectural decisions that balance speed with long-term extensibility.

⛳️ Requirements

• Over 7 years of full-stack engineering experience in building production web applications.

• Experience in early-stage startups and comfort with ambiguity.

• Proven ability to build from the ground up or extend an early-stage system alongside a small team.

• Regular use of AI coding tools such as Cursor, GitHub Copilot, Codex, or Claude for planning, code generation, debugging, and refactoring.

• Mature judgment regarding AI-generated outputs.

• Strong experience in third-party API integration, particularly with OAuth flows and structured data write-back.

• Familiarity with payroll, HRIS, or other limited or inconsistent vendor APIs.

• Experience in modeling relational data for complex, multi-step, multi-tenant stateful workflows.

• Ability to build and maintain reliable background job pipelines utilizing named queue technology and operational visibility.

• Secure handling of PII and financial data.

• Comfort in deploying and monitoring a production service.

• Clear communication and sound judgment in early-stage, ambiguous environments.

• Ability to quickly understand and build upon an existing codebase.

• Legally authorized to work in the United States.

• Must not require employer sponsorship for employment visa status, either currently or in the future.

🏝️ Benefits

• Strong potential for full-time conversion for the right candidate.

• Opportunity to contribute to a mission-driven product addressing the K-12 reading crisis in America.

• Chance to make significant architectural decisions and work on third-party integrations.

• Possibility of attending an in-person interview if selected as a finalist.