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Nkosi Felix

@nkosifelix

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Senior Data Engineer specializing in secure, observable data platforms and event-driven architectures.

United States

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What I'm looking for

I seek senior roles building secure, observable data platforms and streaming architectures in regulated environments, emphasizing reliability, automation, and measurable business outcomes.

I am a Senior Data Engineer with 5+ years building data platforms, observability infrastructure, and event-driven systems, with recent focus on regulated, high-security environments.

I design and implement streaming architectures (Apache Kafka), Azure analytics solutions, and deterministic testing frameworks to deliver auditable, production-grade data services.

I have driven measurable outcomes—reduced onboarding time, lowered cloud costs, improved latency and adoption metrics—while implementing IL4/IL5-compliant delivery in air-gapped contexts.

I prioritize reliability, observability, and secure design, and I integrate modern ML/LLM retrieval pipelines and automation to support self-service analytics and enterprise knowledge retrieval.

Experience

Work history, roles, and key accomplishments

Senior Data Engineer

4C Strategies North America

May 2025 - Oct 2025 (5 months)

Built Kafka-to-PostgreSQL consolidation services, observability infrastructure, and deterministic testing frameworks for IL4/IL5-regulated, air-gapped environments, reducing onboarding from 5 to 3 weeks and improving pipeline reliability for operational telemetry.

Apache Kafka PostgreSQL Spring Boot Grafana Prometheus Docker Junit

Senior Cloud Solutions Architect

Accenture

May 2024 - Dec 2024 (7 months)

Architected Azure Data Factory ETL orchestration and governance frameworks that reduced data latency 28% and enabled regulatory-compliant BI outputs; built Power BI semantic models for Copilot adoption metrics.

Azure Data Factory Entra ID Power BI DAX Python ETL Data Governance Data Modeling

Senior Customer Success Analyst

Microsoft

May 2024 - Dec 2024 (7 months)

Prototyped Copilot retrieval pipelines with LangChain and vector stores and led Azure account guidance, driving a 20% increase in Azure adoption and reducing cloud operational costs by 15%.

Python Lang Chain Azure Power BI Tableau RAG Embeddings Cloud Optimization

Customer Success Manager

Kearney

Oct 2021 - Dec 2022 (1 year 2 months)

Formalized customer success playbooks and CRM advocacy programs, improving customer retention by 15% and driving 12% QoQ engagement improvement through VOC analytics and cross-functional delivery.

& Customer Success CRM Power BI Stakeholder Management Program Management

Supply Chain Operations Specialist

Flexport

Nov 2020 - Apr 2021 (5 months)

Optimized routing algorithms and deployed operational intelligence dashboards, reducing international freight delays 12% and improving SLA attainment from 82% to 94%, delivering $50K+ quarterly savings.

Python SQL Power BI Data Analysis Excel Dashboarding

Senior Operations Analyst

Hapag-Lloyd

Feb 2019 - Nov 2020 (1 year 9 months)

Managed key client accounts and escalations for international logistics, optimizing operational infrastructure to improve response times and on-time delivery rates across services.

Account Management Escalations Optimization Logistics Process Improvement Client Relations

Freelance Backend Engineer

Freelance

Delivered backend automation and lightweight services for data processing, integrations, and AI-adjacent workflows, owning design, implementation, and handoff to production.

Python JavaScript API Development Automation Logging Error Handling Vector Databases