Senior Software Engineer, Solutions Engineering

New York, NYFull-time$188k2026-10-16 → 2026-11-10

Hybrid

Core

Senior Solutions Engineer leading technical discovery and solutioning for partner integrations, building developer ecosystem capabilities, and ensuring safe, observable, and supportable integrations.

Role type

Senior IC Solutions Engineer (API Integrations)

Builds

Developer ecosystem capabilities (portals, SDKs, documentation, sample apps), reference implementations, and reusable integration patterns.

Domain

B2B SaaS / HR Tech / API Integrations

Required skills

API design and integration, OAuth 2.0/OIDC, backend/full-stack development, technical writing, system design, observability, mentoring

Preferred skills

SDK maintenance, OpenAPI, event-driven systems, enterprise stakeholder management

Technologies

TypeScript, Go, Ruby, AWS, containers, OpenAPI, OAuth/OIDC

Responsibilities

Lead technical discovery and solutioning for priority partner integrations; Build and maintain high-quality developer ecosystem capabilities; Create reference implementations and reusable patterns; Run technical working sessions with partners; Collaborate with Security, Support, and other stakeholders; Review designs and code; Mentor teammates

Seniority

Senior, hands-on IC

About Justworks

Justworks is leveling the playing field for all small businesses. We handle the nitty-gritty of payroll, benefits, compliance, and HR, so our customers have more time to learn, grow, and seek something worthwhile. Today, Justworks offices in New York, Toronto, London, Tampa and Mexico City serve more than 12,000 businesses and 200,000 workers around the globe.