Mark Melton

Highly accomplished Principal Fullstack Engineer and Systems Architect with 18 years of expert experience designing, deploying, and optimizing robust, data-intensive software architectures. Proven expertise in building offline-first systems, low-latency data pipelines, local vector/semantic indices, and highly responsive user interfaces across unstable networks. Deep technical proficiency across Python (FastAPI), React/React Native, TypeScript, C#, and SQL combined with extensive cloud infrastructure mastery (AWS, GCP, Docker).

Experienced in managing cross-functional global teams, mentoring engineers, and executing technical tools designed for high data integrity, reliability, and observability.

Lead Engineer at Daily Bible Ministries (2026-01 – Present)

Architected and engineered an offline-first mobile and backend data platform built entirely via a FastAPI (Python) backend ecosystem and a React Native (TypeScript) client application framework.

• Data Pipeline & Quality Control: Designed a high-density raw scriptural string data pipeline handling over 100 historical multi-lingual translations natively in an offline local SQLite environment.
• UI/UX & Efficiency Optimization: Built an advanced client-side interactive 3-stage muscle-memory engine with custom character key listeners and haptic metronomes, achieving zero-drop-off onboarding.
• Observability & Local Telemetry: Implemented a silent local engagement ledger utilizing fast integer timestamp parameters to drive a consistency matrix completely on user device storage.
• Traction Velocity: Engineered the entire system to scale client-side compute workloads (local semantic index lookups and neural speech synthesis) entirely on phone hardware, keeping hosting fees flat while active user bases grew over 191% in 28 days.
• Android Production Link:
• iOS Production Link:

Lead Frontend Engineer at McKinsey & Company, LabelVie & Gemography (2024-05 – 2025-07)

Led technical execution and architecture for a large-scale B2B shopping mobile application for Carrefour/LabelVie, optimizing for enterprise-grade performance and real-world network constraints.

• Data Platform Integration: Participated in the implementation of a Backend-for-Frontend (BFF) layer, orchestrating complex integrations with Commercetools headless commerce pipelines.
• Data Integrity & Observability: Implemented deep performance monitoring (Firebase, custom client profiling hooks) and advanced offline-first synchronization strategies to guarantee data quality across unstable networks.
• Cross-Functional Collaboration: Collaborated closely with McKinsey product managers and enterprise stakeholders to deliver versioned releases aligned with strict product vitals.

Senior Technical Interviewer / Mentor at Gemography (2023-03 – Present)

• Curated and managed real-world engineering assessment frameworks for candidate evaluations, fostering a culture of technical excellence.
• Knowledge Transfer: Spearheaded post-interview feedback engineering loops and mentored junior to mid-level developers on maximizing database configurations and software development best practices.

Senior Software Engineer at WPA Intelligence (2023-03 – 2023-08)

Engineered high-velocity internal tools and data pipelines for a premier campaign analytics and messaging platform.

• Data Engineering: Spearheaded the architecture and creation of a sophisticated Node.js ETL system to streamline multi-source data ingestion.
• System Efficiency Expansion: Collaborated on the architectural redesign and data warehouse migration to an Elasticsearch infrastructure, increasing tool data-processing efficiency by 200%.
• UI/UX Implementation: Designed and executed the front-end interface for the company's core SMS/MMS campaign tool, optimizing operator workflows for speed and accuracy.

Chief Technology Officer (CTO) at Prime Commodity Exchange (2022-06 – 2023-03)

Directed the end-to-end technical architecture, security governance, and operational rollout of a full-scale commodity trading platform.

• System Integration & Webhooks: Coordinated technical integration pipelines and webhook communication layers across financial institutions, clearing partners, and regulatory stakeholders.
• Data Quality Control & Auditing: Architected secure participant wallets, settlement engines, and multi-signatory accounting reconciliation systems to guarantee absolute data integrity.

Head of Technology & Operations at ERCAS Integrated Solutions Ltd (2020-03 – 2022-06)

Transformed enterprise product suits into high-efficiency architectures, directly accelerating government and agricultural data systems.

• Automation & Refactoring: Modularized 6 legacy core software applications into clean, independent microservices, resulting in a 45% code reduction and massive processing speed gains.
• Massive Scale Distribution: Developed a warehouse receipt management and collateral verification system that successfully empowered over two million smallholder farmers.
• Observability Pipelines: Integrated global Elasticsearch logging arrays, increasing runtime system issue resolution rates by 60% across active lines.

General Manager, IT & Operations at Platinum Plus Television Ltd (2017-01 – 2020-12)

Architected a lottery engine and single sign-on (SSO) wallet system that processed over $4.4M in its inaugural year; managed distributed cross-functional engineering teams across Ukraine, India, and Nigeria.

Team Lead - Software Engineering at Emerging Platforms Ltd (2016-01 – 2017-12)

Led development of the End-User Certificate Portal for Nigeria's National Security Adviser and a real-time GPS tracking wearable system for the 2016 Hajj pilgrimage managing data for 18,500+ participants.

Software Engineer at ITrends Software Ltd (2008-01 – 2014-12)

Conceived and built iBanker, a microfinance software engine serving 55,000+ customers; developed scalable video streaming and communication infrastructure across Web, Android, and iOS.

Master of Science (M.S.) in Information Technology – University of the People

Certificate in Project Management – University of Washington

Bachelor of Science (B.S.) in Sociology and Anthropology – University of Maiduguri