Staff Software Engineer, Financial Systems Architecture

About Command|Link Command|Link is a global SaaS Platform providing network, voice services, and IT security solutions, helping corporations consolidate their core infrastructure into a single vendor and layering on a proprietary single pane of glass platform. Command|Link has revolutionized the IT industry by tackling the problems our competitors create. In recognition for our unprecedented innovation and dedication, Command|Link was recognized as the SD-WAN Product of the Year, ITSM Visionary Spotlight, UCaaS Product of the Year, NaaS Product of the Year, Supplier of the Year, and the AT&T Strategic Growth Partner. Command|Link has built the only IT platform for scale that solves ISP vendor sprawl and IT headaches. We make it easy for our customers to get more done, maximize uptime and improve the bottom line. Learn more about us here ! This is a 100% remote position. About your new role: We are not looking for a maintenance engineer. We are seeking a Staff Software Engineer to act as the primary architect for our next-generation financial platform. Our goal is to decommission a legacy PHP monolith and replace it with a modern, high-performance, and resilient service-oriented architecture (SOA) capable of handling billions of global transactions with 100% accuracy. You will be the technical lead for our billing, license management, and revenue recognition systems—the core engines of our business. This role is about more than just refactoring; it is about engineering the distributed systems primitives that ensure every invoice, payment, and reconciliation is reliable, auditable, and secure at a global scale. Key Strategic Responsibilities System Re-Architecture: Lead the transition from a monolithic legacy stack to a modern SOA using the Strangler Fig pattern, ensuring zero downtime and complete data parity. Engineering for Financial Integrity: Design and implement robust idempotency patterns and distributed locking mechanisms to ensure exactly once processing for all financial transactions. High-Scale Data Ingestion: Architect metering and rating engines capable of processing high-cardinality usage data, supporting complex tiered and usage-based billing models. Ecosystem Integration: Build and maintain scalable, secure integrations with critical ERP and payment platforms, including NetSuite, Stripe, Zuora, and Chargebee. Observability & Reliability: Establish world-class standards for performance, monitoring, and alerting across our financial stack, ensuring high availability and rapid incident resolution. Force Multiplication: Act as a mentor and technical guide for our senior engineering team, conducting deep architectural reviews and authoring Architectural Decision Records (ADRs) to steer our long-term roadmap. Your Technical Toolkit Experience: 10+ years of building and scaling reliable backend systems, with a focus on financial or high-transaction platforms. Modernization Expertise: A proven track record of successfully migrating legacy monoliths to modern service-based architectures (experience with PHP refactoring is a significant asset). Cloud Architecture: Deep proficiency in Azure (preferred), AWS, or GCP, with hands-on experience in Kubernetes, Terraform, and serverless compute. Domain Knowledge: Solid understanding of global financial complexities, including multi-currency handling, tax automation, and revenue recognition standards. Security & Compliance: Practical experience implementing PCI, SOC2, and GDPR standards, with a focus on secure authentication (OAuth 2.0, JWT). Communication: Exceptional ability to translate complex business needs from Finance and Operations into scalable, elegant technical designs. Why You’ll Thrive Here Total Autonomy: You will define the technical vision and lead the migration roadmap without the friction of traditional corporate red tape. Tangible Impact: Your work will directly influence how value moves across borders for our global enterprise clients. Remote Excellence: We are a 100% remote-first company that values deep work, asynchronous communication, and results over presence. Continuous Growth: We provide a dedicated budget for conferences, certifications, and advanced technical training. Why you'll love life at Command|Link Join us at CommandLink, where you'll have the opportunity to shape the future of business communication. We value the innovative spirit and seek individuals ready to bring their unique vision and expertise to a team that values bold ideas and strategic thinking. Are you ready to make an impact? Apply now and be the architect of your career as well as our clients' success. Room to grow at a high-growth company An environment that celebrates ideas and innovation Your work will have a tangible impact Flexible time off Fun events at cool locations Employee referral bonuses to encourage the addition of great new people to the team At CommandLink, we’re committed to creating a fair, consistent, and efficient hiring experience. As part of our process, we use AI-assisted tools to help review and analyze applications. These tools support our recruiting team by identifying qualifications and experience that align with the requirements of each role. AI tools are used only to assist in the evaluation process — they do not make final hiring decisions. Every application is reviewed by a member of our recruiting or hiring team before any decisions are made.