SaaS Platform Architect

Legion

11h • $250,000 - $350,000 • Remote

About The Position

Legion Technologies is on a mission to turn hourly jobs into good jobs through intelligent automation and AI. Our AI-powered Workforce Management platform helps enterprises optimize labor efficiency while empowering hourly employees with flexibility, fairness, and control over their schedules.
Our multi-tenant SaaS platform serves large enterprise customers globally, supporting complex scheduling, forecasting, compliance, and analytics workloads across web and mobile applications. We operate at scale — high data volumes, strict availability requirements, and enterprise-grade security standards. The architecture decisions you make here directly affect the scheduling fairness and financial stability of millions of hourly workers worldwide.
We are seeking a Saas Platform Architect to define and lead the architectural evolution of the Legion WFM Platform. You will architect the platform that our enterprise customers run on: designing and building the core systems.
This is a senior, hands-on technical leadership role responsible for shaping our multi-tenant cloud architecture to ensure scalability, resilience, security, and performance at enterprise scale. You will own architectural direction across backend systems, APIs, data infrastructure, and cloud-native services while partnering closely with engineering, product, and leadership teams.
This role is ideal for a proven enterprise SaaS architect who thrives in distributed systems, takes ownership of platform strategy, and wants their architectural decisions to have real-world impact on millions of people.

Requirements

• Bachelor's or Master's degree in Computer Science, Engineering, or equivalent experience.
• 10+ years architecting multi-tenant, cloud-native SaaS platforms serving enterprise customers (building core product systems, not customer implementations).
• Demonstrated active use of Generative AI coding tools in professional software development.
• Deep expertise in Java, Spring Boot, Hibernate, MySQL, and RESTful API design.
• Strong hands-on experience with AWS — including compute, storage, networking, and managed services at scale.
• Demonstrated expertise in distributed systems, event-driven architectures, and large-scale data modeling.
• Experience designing for high availability, fault tolerance, and performance under high-concurrency enterprise workloads.
• Experience with containerization and orchestration (Docker, Kubernetes) in production environments.
• Strong DevOps fluency: CI/CD pipelines, GitHub, observability, and infrastructure as code.
• Excellent technical communication and cross-functional leadership skills.

Nice To Haves

• Experience building or integrating LLM-powered features in production — including prompt engineering, RAG pipelines, or agentic workflow design.
• Hands-on experience with Elasticsearch and real-time messaging systems (Kafka, SQS, or equivalent).
• Experience with Datadog or equivalent observability platforms at enterprise scale.
• Experience with feature flags and experimentation frameworks in high-scale SaaS environments.
• Familiarity with multi-jurisdiction labor compliance requirements or other highly regulated enterprise domains.
• Background in Workforce Management, HR Tech, or complex scheduling domains.
• Experience in high-growth B2B enterprise SaaS environments.

Responsibilities

• Define and evolve the architecture of Legion's multi-tenant SaaS platform.
• Lead system design for highly scalable, fault-tolerant, distributed services.
• Establish architectural patterns, standards, and long-term technical roadmaps.
• Drive decisions around service decomposition, API strategy, and extensibility.
• Architect and optimize cloud-native systems on AWS.
• Design for high availability, performance, security, and cost efficiency.
• Own containerization and orchestration strategy (Docker, Kubernetes) in production.
• Champion observability, reliability engineering, CI/CD, and infrastructure as code.
• Ensure secure enterprise-grade data protection at scale.
• Lead performance tuning, scalability modeling, and database optimization.
• Design APIs and integration patterns for enterprise customers and partners.
• Support compliance and audit requirements common in enterprise environments.
• Actively use Generative AI coding tools (GitHub Copilot, Cursor, Claude) as a standard part of your development and architectural workflow — demonstrated prior use is required.
• Establish engineering-wide best practices for AI-assisted development, code review, and architectural validation.
• Support the design and development of AI-native product capabilities.
• Evaluate and integrate emerging AI/ML frameworks and LLM orchestration patterns (RAG, agentic workflows) into the core platform.
• Drive measurable improvements in AI SDLC practices and engineering velocity through intelligent automation
• Lead design reviews and mentor senior engineers and principals.
• Serve as the escalation point for complex production or architectural challenges.
• Partner cross-functionally with Product, Data, QA, and DevOps.
• Contribute hands-on to critical platform components, with a primary emphasis on architecture and technical direction.

Benefits

• $0 monthly premium and other flexible medical, dental, and vision plans effective on the first day of employment
• 401k plan
• Discretionary Paid Time Off and Paid Holidays
• Parental Leave
• Equity
• Monthly Wellness Reimbursement
• Monthly Lunch on Legion

What This Job Offers

• Job Type: Full-time
• Career Level: Senior