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Staff Software Engineer - Workflows Platform at Lumos. Location Information: USA,Canada. We’re looking for a . Staff Software Engineer. to . lead the design and implementation of our next-generation Workflows & Notifications Platform. . In this role, you’ll build the critical infrastructure that enables real-time, context-aware messaging and task orchestration across our Identity Governance product—from access reviews and approval flows to Slack alerts and audit trail notifications.. You’ll work cross-functionally with product, design, and infrastructure teams to . define robust, extensible APIs. , establish messaging contracts, and evolve a developer-friendly platform that powers seamless user communication and governance automation.. We’re a startup that values . ownership. , . curiosity. , and . trust. —and we’re looking for engineers who love building infrastructure that enables teams to move faster while improving resilience and visibility.. ✨ Your Responsibilities. Lead the development and enhancement of Lumos’s event-driven notifications and workflow orchestration systems. , ensuring they are scalable, extensible, and reliable across core identity governance features like access reviews and JIT approvals.. Own and evolve the . core architecture for multi-channel messaging. , including delivery routing, retry strategies, escalation paths, and message templating with support for localization and personalization.. Partner with product and engineering teams to design . developer-friendly APIs and contracts. for triggering, previewing, and managing user-facing messages and workflow states.. Implement infrastructure and tooling to support . observability, auditing, and delivery guarantees. , enabling teams to confidently build on top of the messaging and workflow layers.. Collaborate with platform and infra teams to ensure . seamless integration with identity workflows. , system events, and service boundaries—prioritizing fault tolerance, idempotency, and high throughput.. Build and maintain . internal tooling, CLIs, and reusable abstractions. that empower other engineers to quickly compose, test, and deploy communication workflows without deep platform knowledge.. Drive systemic improvements in . workflow lifecycle management. , including support for delayed tasks, time-based escalations, approval state machines, and SLA-bound execution paths.. 🙌 What We Value. We’re looking for engineers who lead with systems thinking and curiosity—who ask “what needs to happen when?” and build with the confidence that comes from modeling complex flows and edge cases. You’ll thrive here if you enjoy designing clean abstractions, collaborating across teams, and creating tools that make communication and orchestration feel effortless.. 5+ years of experience as a . backend or platform engineer. , with direct experience building . event-driven systems. , . workflow orchestration. , or . notifications infrastructure. .. Deep knowledge of . asynchronous architectures. , including . message queues. , . state machines. , and tools like . Celery. , . Kafka. , . Temporal. , or . Step Functions. .. Strong backend development skills in . Python. , . Go. , or . TypeScript. , with a focus on . clean API design. , . testability. , and . observability. .. Hands-on experience building . multi-channel messaging systems. (Slack, email, in-app), including support for . templating. , . delivery retries. , and . channel fallbacks. .. Familiarity with . compliance and governance use cases. (e.g., audit trails, access reviews, escalation policies) and how workflows support visibility and traceability at scale.. A track record of designing . developer platforms. , internal tools, or infrastructure that improves velocity, reliability, and reusability across teams..  . 💰 Pay Range. $190,000 - $240,000 . Note that this range is a good faith estimate of likely pay for this role; upon hire, the pay may differ due to skill and/or level of experience.