Senior Software Engineer - AI, Security & Enterprise SaaS

Atrium; Jacksonville (FL); Hybride; USD 120 000 - 180 000; Plein temps

Avantages offerts par ce poste

PTO 20 days

Holidays 11

Medical/Dental/Vision

Résumé du poste

Atrium is seeking a Senior Software Engineer to advance AIR products from early-stage seeds to enterprise-ready solutions in a Jacksonville-based role. You will pair with the current full-stack developer to scale security, reliability, and deployment practices for enterprise clients and will write code daily in a startup-like environment backed by a mature research organization.

You will design multi-tenant systems, own cloud infrastructure, and help bring new features from concept to MVP, while

Qualifications

• 8+ years of professional software engineering, including 3+ years building and running production SaaS used by business customers.
• Strong full-stack skills in a modern stack, such as TypeScript/Node.js or Python on the back end and React on the front end
• Hands-on experience deploying and operating on a major cloud (AWS, Azure, or GCP), including containers, infrastructure-as-code (Terraform or similar), and CI/CD
• Solid grounding in application security: OWASP Top 10, identity and access management, data protection, and secure SDLC practices
• Experience designing multi-tenant systems and relational databases (PostgreSQL or similar) that scale
• Daily, practical use of AI coding assistants, and experience integrating LLM APIs into products
• Comfort moving between rapid prototyping and disciplined production engineering, with judgment about which a situation calls for
• Clear communication with non-engineers, including product leaders and clients

Responsabilités

• Harden MVPs for production by refactoring prototype code, defining clean architecture, and deliberately paying down technical debt
• Design for scale with multi-tenant data models, performance tuning, caching, queuing, and horizontal scaling
• Own security, including authentication and authorization (SSO/SAML, OAuth, RBAC), secrets management, encryption, and secure handling of candidate and worker PII
• Prepare products for enterprise security reviews and compliance frameworks such as SOC 2
• Stand up and own cloud infrastructure, infrastructure-as-code, CI/CD pipelines, environments, release management, monitoring, alerting, and incident response
• Build reliable integrations with enterprise systems, including VMS platforms (Beeline, SAP Fieldglass, VNDLY), ATS, and HRIS
• Build new features and help take new products from concept to MVP alongside our product developer
• Use AI coding tools daily (Claude Code, Cursor, Copilot, or similar) and build AI-powered features with LLM APIs
• Set engineering standards, including code review, testing, documentation, and guardrails that let a small team move quickly without breaking things
• Mentor teammates and advise on build-versus-buy and architecture decisions

Connaissances

Full-stack experience

TypeScript/Node.js

Python backend

React frontend

Cloud deployment

CI/CD

Application security

AI coding assistants

Formation

Bachelor's degree in Computer Science

Outils

AWS

Kubernetes

Terraform

Description du poste

Atrium is seeking a Senior Software Engineer to advance AIR products from early-stage seeds to enterprise-ready solutions in a Jacksonville-based role. You will pair with the current full-stack developer to scale security, reliability, and deployment practices for enterprise clients and will write code daily in a startup-like environment backed by a mature research organization.

You will design multi-tenant systems, own cloud infrastructure, and help bring new features from concept to MVP, while