Ndianabasi Udonkang

LANGUAGES

• JavaScript/TypeScript, Golang, Python, Bash.

TECHNOLOGIES USED

• Backend runtime and frameworks: Nodejs, Golang, Python, AdonisJS, Strapi.
• Frontend: Vuejs, React, React Native, Wails, Electron, Nextjs, Nuxtjs.
• Object storage: Cloudflare R2, SeaweedFS.
• Database and caching: Redis, PostgreSQL / PgBouncer / MySQL / SQLite / LibSQL.
• Asynchronous Messaging Queues: PostgreSQL / PgBoss / BullMQ, DBOS.
• Observability: Sentry, Grafana, Jaeger Tracing, Prometheus.
• Realtime communications: WebRTC, WebSockets, Push Notifications.
• Virtualisation: Docker.
• Web scraping: Crawlee, Playwright.

SOFTWARE ENGINEERING ACHIEVEMENTS

• Architected and developed a huge and robust Nodejs API backend currently featuring over 300 PostgreSQL tables and 600 API routes which powers the Gotedo Vineyard software, Gotedo Social Media Platform, and other auxiliary services.
• Instilled the discipline of test-driven development within the Gotedo Team. Our application backend is fortified by over 10,000 functional tests.
• Architected and developed the proprietary and highly secured Gotedo Accounts Management System including an OAuth2/Open ID Connect service (developed from scratch from relevant RFCs) saving thousands of dollar yearly in authenication costs. This can be found at https://accounts.gotedo.com.
• Architected and managed the development and deployment of the Gotedo Social Media Platform – a social media platform which is similar to LinkedIn and Twitter but custom-developed for churches and Christians.
• Architected and developed the proprietary and localized Product Documentation System found at https://support.gotedo.com/en/docs which saves us thousands of dollar yearly in documentation platform costs.
• Architected and developed the proprietary and highly scalable Billing and Subscription Management System for the Gotedo Platform which is equivalent to offerings from Stripe or Chargebee which saves us thousands of dollars annually in vendor costs. Functionalities include pricing table management, billing, subscriptions and recurring subscriptions, subscription cancellations, invoicing, etc. The pricing table at https://about.gotedo.com/en/products/gotedo-vineyard/pricing is 100% powered by the Gotedo Billing and Subscription System.
• Architected and developed Gotedo Streams - the livestreaming service for the Gotedo Platform. Gotedo Streams is an alternative to Google Meet or Zoom.
• Architected and developed the proprietary Media Processing Service for the Gotedo Platform using Golang which handles processing/compression/transcoding of images, video, and audio files uploaded from the Gotedo Social Media Platform.
• Architected and managed the development of the proprietary Content Moderation System for the Gotedo Social Media Platform.
• Architected and developed the proprietary Email Newsletter Management System for the Gotedo Platform.
• Architected and developed the proprietary Realtime Notification System featuring intelligent routing of notifications via WebSocket or push notifications and used by the Gotedo Social Media Platform and Gotedo Vineyard software.
• Architected and developed a robust asynchronous messaging queue system for the Gotedo Platform featuring Nodejs child processes, Nodejs workers, PostgreSQL/PgBoss, Redis, and DBOS.
• Architected and developed a high throughput multi-machine / multi-process caching layer for the Gotedo Application Backend with stampede protection and reliable cache-busting mechanisms.
• Crafted highly optimized SQL queries for consumption by over 30 analytical charts covering over 100 datasets for church and global analytics.
• Architected and managed the full localization/internationalization of all user-facing applications, sites, and application backend API responses within the Gotedo Platform. This ensures an immersive experience in supported languages: English, Spanish, French, and Portuguese.
• Managed the design and development of the Gotedo marketing website at https://about.gotedo.com which comprises of a Strapi headless backend and Nextjs frontend with integration to the Gotedo Application Backend and Gotedo Billing and Subscription Management System.
• Developed server-side rendered (SSR) sites for the Gotedo Vineyard including generating of schema.org structured data, unique OG images per page using Puppeteer, and lots of website optimizations. You inspect the head element at this page (https://support.gotedo.com/en/docs/gotedo-vineyard/fcn0) to see the structured data and optimizations.
• Developed a robust and automated web scraping service which crawled for churches across the entire USA using Google Maps API, Crawlee, and Playwright.

DEVOPS / SYSTEM ADMINISTRATION ACHIEVEMENTS

• Achieved 100% self-hosting of all Gotedo services including Gotedo Application Backend, Gotedo Accounts System, Gotedo Product Documentation System, Gotedo Vineyard, Gotedo Streams, etc.
• Developed robust automated staging and production Docker-based deployment workflows using GitHub Actions for the Gotedo Application Backend, Gotedo Accounts System, Gotedo Product Documentation System, Gotedo Vineyard, Gotedo Streams, Gotedo Marketing Website, etc.
• Wrote bash scripts which can provision virtual machines as GitHub self-hosted runners to reduce GitHub spends.
• Wrote automated (idempotent) initialization and setup scripts which can setup from scratch a VM or bare-metal Debian server and ready it for deployment of Gotedo services within minutes.
• Setup robust firewalls and Fail2ban monitoring of error logs on all Gotedo servers for blocking of malicious of SSH and HTTP requests.
• Setup robust Layer 4 (Stream) and Layer 7 (HTTP(s)) reverse proxy and load balancing for Gotedo services using Nginx.
• Setup dedicated monitoring server which monitors all Gotedo services.
• Setup robust twice-daily database dumps and point-in-time recovery (PITR) WAL archiving for PostgreSQL databases.
• Setup of local Docker-based development stack to enable quick start of 3rd-party services such as SeaweedFS, Grafana, Prometheus, Jaeger, Nginx, PostgreSQL, Redis, etc. for improved development experience.

OBSERVABILITY ACHIEVEMENTS

• Setup Monit for internal monitoring of system and Gotedo services on all Gotedo servers.
• Setup dedicated server for health checks and monitoring of all Gotedo servers.
• Setup pipelines for gathering analytics from all self-hosted services using open-source analytics tools.
• Setup tracing, metrics, and logging for the Application Backend using Jaeger and Prometheus via the OpenTelemetry SDK and protocol.
• Setup metrics visualisation of metrics using Grafana.

TALENT DEVELOPMENT ACHIEVEMENTS

• Attracted and trained five talents across frontend, backend, and mobile development specializations from internship to junior/intermediate developer cadre. These talents were instrumental to the development of several Gotedo services.

LANGUAGES

• JavaScript/TypeScript, Bash.

TECHNOLOGIES USED

• Backend runtime and frameworks: Nodejs, AdonisJS.
• Frontend: Vuejs.
• Object storage: Amazon S3.
• Database and caching: Redis, PostgreSQL, MySQL.
• Asynchronous Messaging Queues: PostgreSQL, RabbitMQ, AWS SQS and Redis.
• Observability: Sentry, Grafana, Prometheus.
• Data pipeline: Cloudflare workers, Cloudflare R2, AWS S3, AWS Glue, AWS SNS, AWS CloudWatch, etc.
• Scalability: Cloudflare Workers, Nginx load balancers, and AWS Elastic Load Balancing, AWS CloudFront, Cloudflare Cache, other serverless services.
• Virtualisation: Docker.

ACHIEVEMENTS

• I worked with the DevOps team and scaled capacity of the system to serve creatives for advertisements from 100K req/day to over 1M/day.
• Developed a robust multi-level and multi-resource Access Control System comparable to that found on Google Cloud.
• Developed the backend component of Cavai’s Account Management system and integrated the Account Management system into the frontend. Together with the Access Control System, the Cavai stack can scalably and safely onboard millions of customers.
• I met a backend codebase with zero (0) test. I Initiated comprehensive code tests across the entire backend stack. As at when I left, there are over 5000 functional, unit, and regression tests.
• Designed and implemented a SOC2 and ISO27000 compliant audit logging system.
• Initiated CI/CD pipeline for the application backend using the tests as one of the deployment criteria. Created GitHub workflows to test and deploy code across the backend stack.
• Ensured application uptime and reliability. Integrated monitoring tools like Sentry and Datadog into the application backend.
• Built and maintain backend and frontend components of internal tools for use by management, sales, and operations departments.
• Worked with the data science team to develop scalable and serverless analytics data ingestion, processing, and storage pipelines cutting across Cloudflare and AWS.
• Worked with the data science team to ensure data quality and safety for the terabytes of analytics data gathered monthly from published ads.
• Mentored colleagues in other teams to become better backend/full-stack engineers.
• Regularly interfaced with the product team to align new products and features with the backend.
• Passionate about fighting and quenching production fires when it occurs even if they happen at the middle of the night.

• Responsible for the setup and maintenance of the Magento-based ecommerce platform from inception till business was shuttered.
• Responsible for the setup, maintenance, and monitoring of the company’s dedicated Linux servers.
• Expert in setup and configuration of NGINX web server, Redis server, and ElasticSearch.
• Setup company’s LAN network and Windows Server for Active Directory and File Sharing.
• Experience with AWS EC2, CloudFront CDN, AWS S3, Beanstalk, Route53, etc.

• Created tens of website for companies and individuals using WordPress, HTML, and CSS.
• Built the first website for the Lagos City Marathon with Mailchimp integration in 2015.

Non-tech experience. Details on my LinkedIn page.