ELR Architect Engineer

What You’ll Do

As countries across the globe mandate continuous transaction controls and electronic invoicing, Avalara’s ELR platform is at the forefront of digital commerce transformation. The systems and integration tools you build will directly power how enterprises seamlessly connect their core business applications to tax authorities across the globe, ensuring uninterrupted business operations in an increasingly regulated digital economy.

The Opportunity

We are hiring a Principal Engineer to serve as the technical authority and chief platform builder for Avalara’s E-Invoicing & Live Reporting (ELR) ecosystem. As governments worldwide transition from post-audit VAT models to real‑time e‑invoicing, CTC (Continuous Transaction Controls), and live reporting mandates (e.g., Peppol, SDI in Italy, Chorus Pro in France, KSeF in Poland, NF‑e in Brazil, etc.), businesses face unprecedented regulatory complexity.

This role is a high-impact, hands‑on individual contributor role focused on architecting mission‑critical, high‑throughput ELR platforms while fundamentally transforming how customers and partners connect to Avalara. A core pillar of this role is designing next‑generation tooling, developer experiences, and automated platforms for frictionless customer onboarding, enterprise ERP integrations, and automated schema/format transformation
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You will collaborate closely with distributed engineering teams across the U.S., Europe, India, and Brazil, leading through architectural design, code prototyping, and technical mentorship.

What Your Responsibilities Will Be

• Lead the architecture, technical vision, and platform evolution for distributed, multi‑tenant ELR cloud services supporting millions of real‑time transactions across diverse global jurisdictions.
• Design ultra‑low‑latency, fault‑tolerant ingestion pipelines, format transformation engines (XML, JSON, UBL, CII), digital signature services, and automated tax authority dispatch gateways.
• Architect systems optimized for strict auditability, high availability (99.99%+), multi‑region active‑active deployments, and data residency/compliance isolation.

• Pioneer self‑service integration frameworks, developer toolkits, and onboarding accelerators that reduce customer time‑to‑value from weeks to hours.
• Architect automated data mapping, format translation, and schema validation engines that streamline integration with major ERPs, billing systems, and custom customer architectures (e.g., SAP, Oracle, Microsoft Dynamics, Net Suite).
• Build interactive testing, simulation, and validation sandboxes allowing enterprise customers to simulate country‑specific mandate flows and tax authority responses prior to going live.
• Standardize modern API designs, webhooks, SDKs, and event‑driven integration patterns across the entire ELR product suite.

• Write production‑grade foundational code, reference implementations, SDKs, and architectural spikes that engineering teams build upon.
• Drive rigorous design and code reviews, championing architectural consistency, modularity, and operational resilience.
• Proactively identify performance bottlenecks, systemic risks, and technical debt across distributed services, driving architectural remediations.

• Design and embed intelligent, AI‑powered capabilities into ELR workflows—such as automated schema mapping, predictive error remediation, anomaly detection in high‑volume invoice streams, and conversational onboarding assistants.
• Establish architectural patterns and security standards for responsible, high‑leverage AI integration across backend pipelines and developer tools.
• Drive measurable efficiency…