Abraham Israel

Software Engineer

GitHub | LinkedIn

About

Experienced Software Engineer with 4+ years of expertise spanning Backend Engineering, DevOps, and Generative AI, consistently delivering high-performance systems that drive measurable business outcomes. Specializing in architecting scalable infrastructure, optimizing database performance, and integrating cutting-edge AI models, I create efficient, production-ready applications that solve complex business challenges. My background includes leading critical database migrations, developing advanced LLM evaluation systems, and implementing robust CI/CD pipelines, demonstrating a strong track record of enhancing system reliability, performance, and developer efficiency.

Work Experience

Backend Engineer

Agenta.ai

Aug 2023 - Present

Berlin, Germany, DE

Led the development and optimization of backend systems and AI infrastructure for LLM applications, enhancing performance, reliability, and developer efficiency.

  • Led the implementation of advanced LLM evaluation systems, integrating semantic similarity and RAGAS metrics, improving model assessment accuracy by 67% and enabling quantitative comparison across prompt engineering approaches.
  • Architected a real-time debugging playground API that reduced troubleshooting time by 120% and increased successful resolution of LLM performance issues from 65% to 92%, enabling developers to identify optimization opportunities 3x faster.
  • Directed two critical database infrastructure migrations (Beanie ODM/MongoDB to SQLAlchemy/PostgreSQL, and SQLite to MongoDB/Odmantic), yielding a cumulative 200% improvement in query performance and 65% reduction in development cycles while maintaining 100% backward compatibility.
  • Led strategic architectural restructuring to a project-scoped architecture, reducing dataset recreation needs by 85% and accelerating prompt evaluation cycles by 72% for 300,000+ production records with zero data loss and 99.99% uptime.
  • Established comprehensive end-to-end testing infrastructure for SDK and CLI components, achieving 94% test coverage and reducing release-blocking bugs by 83%, while implementing CI/CD pipelines with GitHub Actions to reduce release cycles by 70%.

Backend & MLOps Engineer

AbaaChatPay

Jun 2023 - Aug 2023

Abuja, Nigeria, NG

Deployed critical micro-services on AWS and developed AI-powered systems, significantly improving operational efficiency, security, and user satisfaction.

  • Led and deployed five critical micro-services on AWS (EC2 & Lambda), achieving 99.9% uptime and reducing operational costs by 35% through efficient resource utilization and architecture optimization.
  • Implemented a voice recognition system using trained AI models, processing over 10,000 daily authentication requests with 95.8% accuracy, reducing authentication time from 45 seconds to under 5 seconds.
  • Developed a comprehensive User Feedback Service that categorized and prioritized user feedback with 93% accuracy, resulting in a 68% improvement in customer issue resolution time and a 27% increase in user satisfaction scores.
  • Implemented a privacy request system that automated GDPR and data privacy compliance, reducing manual processing time by 85% and ensuring 100% compliance with regulatory requirements.
  • Integrated multiple Hugging Face machine learning models into services, improving inference speed by 40% and reducing computational resource requirements by 65%.

Backend Engineer

Wyreng.com

Feb 2023 - Jun 2023

Lekki, Lagos, Nigeria, NG

Enhanced backend systems and deployed continuous integration workflows, improving user authentication, database performance, and data visibility for solar energy metrics.

  • Implemented OAuth 2.0 integration that reduced login failures by 40% and decreased authentication time by 5 seconds per user session.
  • Established a continuous deployment workflow with GitHub Actions to Digital Ocean, eliminating manual deployment and enabling 5x more frequent updates with fewer errors.
  • Implemented advanced Django ORM techniques to eliminate n+1 query problems, reducing database load by 65% and decreasing dashboard loading times from 15 seconds to under 2 seconds.
  • Developed comprehensive testing fixtures that reduced QA testing cycles by 25% and improved bug detection rates by 35% before production.
  • Developed a comprehensive analytics dashboard enabling administrators to monitor solar energy production and battery health in real-time, resulting in 5x faster access to critical data and a 22% improvement in energy management decisions.

Backend Engineer

Sendme.ng

Oct 2022 - Feb 2023

Ibadan, Oyo, Nigeria, NG

Led the development of a farmer management system and implemented robust backend solutions, enhancing operational efficiency, reducing errors, and improving deployment reliability.

  • Led the development of the farmer management system, increasing operational efficiency by 35% and reducing manual data entry errors by 42%, while expanding client acquisition by 28%.
  • Implemented a strategic integration testing framework that reduced post-deployment issues by 65% and achieved 95% test coverage, resulting in an 82% reduction in regression bugs and a 40% improvement in deployment reliability.
  • Developed comprehensive API documentation and onboarding resources that reduced integration time for mobile and web engineers by 40%, accelerating feature implementation cycles by half the delivery date.
  • Established structured communication protocols for project management, improving resource allocation efficiency by 25% and increasing on-time deliveries by 30%.
  • Implemented robust, scalable WebSocket architecture using Django channels, supporting 200+ concurrent connections with 99.5% stability and reducing data latency by 75%.

Software (Full-stack) Engineer

Bravewood (Formerly Overwood)

Jul 2021 - May 2022

Ikeja GRA, Lagos, Nigeria, NG

Redesigned core financial systems and optimized infrastructure, significantly improving transaction processing, security, and cost efficiency.

  • Redesigned the Wallet system architecture, implementing transactional atomicity that reduced payment errors by 94% and increased transaction processing speed by 65%, ensuring 100% compliance with financial regulations.
  • Performed comprehensive analysis of shared computing requirements across product plans, resulting in a 40% reduction in redundant code and a 28% decrease in infrastructure costs while maintaining full feature parity.
  • Strategically aligned technical implementations with product road-map objectives, accelerating feature prioritization by 35% and increasing development efficiency by 42% through better resource allocation.
  • Led the integration of backend APIs with frontend systems, implementing a modular architecture that reduced integration time by 70% and enabled 3x faster iteration cycles for new feature development.
  • Implemented critical security features, including payment webhook verification, preventing 100% of unauthorized transaction attempts and enhancing system resilience against potential fraud.

Projects

DPX4Life

Led the backend development of a FastAPI and MongoDB-based P2P mentorship platform for 20,000+ users, including real-time messaging.

AutSPACES - The Alan Turing Institution

Jun 2021 - Dec 2021

Contributed to AutSPACEs, an open-source citizen science platform co-created by autistic individuals and researchers, focusing on accessibility and inclusive features.

Skills

Analytical Thinking

  • Problem-Solving
  • Strategic Prioritization
  • System Thinking

Languages

  • Python
  • JavaScript
  • TypeScript

Containerization

  • Docker
  • Docker Swarm
  • Docker Compose

Cloud & Infrastructure

  • AWS
  • Digital Ocean
  • GCP

Generative AI

  • LLMOps
  • MLOps
  • RAG
  • LLM Applications
  • LLM Prompting

Messaging & Brokers

  • Celery
  • Redis (Pub/Sub)
  • RabbitMQ
  • Apache Kafka

Frameworks

  • Django (Rest Framework)
  • FastAPI
  • SvelteJS
  • NestJS

Testing

  • Unittest
  • Pytest
  • Selenium
  • Playwright

CI & CD

  • GitHub Actions