Anthony Emmanuella Mmasinachi

Anthony Emmanuella Mmasinachi

About

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Full-Stack Software Engineer | React, Next.js, Node.js, Python, Rust | Systems & APIs
Lagos, Nigeria

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Résumé

Jobs verified_user 0% verified
  • T
    Lead Web Engineer & Consultant
    Twins Kitchen and Bakery World
    Aug 2026 - Sep 2026 (2 months)
    • Designed and developed a complete business website and supporting web infrastructure.
    • Built responsive frontend experiences and application logic around business requirements.
    • Managed source control, repository workflows, and deployment through GitHub and GitHub Pages.
    • Implemented site navigation, user-facing functionality, and maintainable web architecture.
  • F
    Software Engineering & QA
    Freelance Independent Projects
    Jul 2023 - Apr 2026 (2 years 10 months)
    • Performed software lifecycle evaluation, debugging, quality assessment, and reliability-focused review across web and full-stack applications.
    • Investigated implementation issues across frontend and backend components and applied structured debugging practices.
    • Applied QA/QC principles to software development workflows, testing, and technical delivery.
Education verified_user 0% verified
  • U
    B.Sc. in Software Engineering
    Unique Open University
    Aug 2024 - Current (2 years 3 months)
  • U
    B.Sc. in Software Engineering
    Unique Open University
    Sep 2024 - Sep 2026 (2 years 1 month)
  • not specified
    Human Resource Management (HRM)
    not specified
    May 2023 - May 2024 (1 year 1 month)
  • not specified
    Project Management
    not specified
    May 2023
Projects (professional or personal) verified_user 0% verified
  • I
    Atlas - Systems-Oriented HTTP Reverse Proxy
    Independent project
    Jul 2026 - Aug 2026 (2 months)
    • Built an asynchronous HTTP reverse proxy using Tokio and TCP primitives rather than a high-level proxy framework.
    • Implemented HTTP/1.x request parsing and response framing, including Content-Length, chunked transfer encoding, no-body responses, and close-delimited responses.
    • Developed multi-backend round-robin routing, upstream connection reuse, client keep-alive, configurable retries, and active TCP health checks.
  • I
    Voltis - Financial Infrastructure Platform
    Independent project
    Aug 2025 - Sep 2025 (2 months)
    • Built a financial infrastructure platform covering organizations, workspaces, accounts, transactions, and double-entry ledger workflows.
    • Implemented payment-processing workflows, idempotency keys, request fingerprints, reconciliation, risk workflows, and webhook processing.
    • Developed asynchronous background processing with BullMQ and Redis and real-time communication with Socket.IO.
  • I
    Nexora - Multi-Tenant SaaS Workplace
    Independent project
    Mar 2025 - Apr 2025 (2 months)
    • Built a full-stack multi-tenant project-management platform with separate web, API, worker, and database components.
    • Implemented PostgreSQL Row-Level Security with FORCE ROW LEVEL SECURITY and transaction-local tenant context to enforce tenant isolation at the database and application layers.
    • Developed JWT authentication with refresh-token cookies, workspace-level RBAC, projects, tasks, team invitations, and tenant-aware APIs.
    • Implemented Redis/BullMQ background processing with tenant context propagation into workers.
    • Integrated Stripe Checkout billing and webhook workflows, Playwright end-to-end testing, Docker Compose infrastructure, and GitHub Actions CI.
  • I
    Logvault - Real-Time Event Intelligence & Observability Platform
    Independent project
    Mar 2023 - May 2023 (3 months)
    • Built an event-driven observability platform for application-event ingestion, asynchronous processing, operational analytics, anomaly detection, and real-time monitoring.
    • Designed an event-processing pipeline connecting a Fastify API, Redis/BullMQ worker, PostgreSQL data layer, anomaly-detection logic, and Next.js dashboard.
    • Implemented REST APIs for event ingestion, event queries, metrics, and anomaly retrieval with Zod request validation.
    • Built statistical error-rate anomaly detection comparing service behavior against historical baselines and integrated real-time Socket.IO dashboard updates.
  • I
    Forge - Distributed Build & Task Execution Engine
    Independent project
    Apr 2022 - May 2022 (2 months)
    • Built a Rust-based distributed execution system for dependency-aware workloads modeled as directed acyclic graphs.
    • Implemented coordinator-to-worker TCP communication, worker registration, heartbeat probing, stale-worker detection, healthy-worker selection, and retries.
    • Designed a versioned binary wire protocol with message framing and content-addressed artifact storage using SHA-256 identities.