Tahar Meftah

Staff Software Engineer

Providence

Sep 2020 - Current (6 years)

Drove development of the Praia Health identity + personalization platform, powering 5M+ consumer accounts across Providence's mobile and web products, including profile-graph services, account linking, and OAuth/OIDC authentication. Architected and delivered high-scale backend services (Node.js/TypeScript, Java/Spring Boot, Go) handling 80M+ monthly requests, backed by PostgreSQL, DynamoDB, Redis, and real-time pipelines (Kafka/Kinesis) for personalization. Established FHIR-aligned integrations with Epic, CRM, scheduling, and billing systems, improving patient-identity resolution accuracy by 30%+ across 45+ EMR sources. Integrated LLM-driven personalization and navigation models (RAG, vector search, behavioral signals) into patient-facing s

Senior Software Engineer

Keap

May 2018 - Aug 2020 (2 years 4 months)

Refactored major legacy CRM + automation modules into microservices, reducing service latency by 35% and supporting multiple product tiers (Infusionsoft, Keap Grow, Keap Pro). Improved core CRM, contact, and workflow systems with optimized data models, tuned queries, added Redis caching, and reworked event orchestration-boosting workflow throughput by 2x. Delivered high-impact platform features using Java, Node.js, TypeScript, MySQL, Redis, Kafka, improving automation reliability and permissions accuracy for 100k+ SMB customers. Strengthened e-commerce systems by redesigning payments, invoicing, and quotes, increasing payment success rates by 18% via gateway reliability improvements. Improved UX-aligned features (onboarding, form builders,

Software Engineer

Reformation

Jul 2015 - Apr 2018 (2 years 10 months)

Built and optimized RESTful e-commerce APIs (catalog, inventory, orders), reducing backend response times by 40% and supporting revenue growth during rapid retail expansion. Developed interactive retail applications (kiosks, fitting-room system) with modern front-end frameworks, real-time data syncing, and clean UI implementation. Designed integrations connecting WMS, retail stores, and online channels with event-driven workflows, reducing inventory-sync errors by 80%. Implemented and supported analytics + sustainability data tooling, including ETL jobs, metric computation services, and internal dashboards for operational insights.

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Staff Software Engineer

Providence - Praia Health Integration Leadership

Spearheaded cross-company integration after Praia's 2024 spin-out, defining 30+ shared API contracts, canonical data schemas, and event models to ensure zero-downtime interoperability between Providence platforms and Praia SaaS systems. Co-led modernization of the Digital Front Door, improving system reliability and load capacity by 40% while aligning engineering roadmaps across orgs.

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Staff Software Engineer

Providence - Platform Architecture & Governance

Provided architecture guidance across IAM, mobile/web, data, and clinical-integration teams-driving adoption of Kubernetes, Terraform, GraphQL federation, and modern CI/CD standards, reducing deployment friction by 50%. Championed HIPAA-aligned security patterns, improving audit completeness, encryption coverage, and access-governance consistency across all patient-facing services.

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