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Senior Full-Stack Engineer with 7+ years of experience designing and building scalable, cloud-native applications using Next.js, NestJS, Node.js, TypeScript, and AWS. Experienced in developing AI-enabled solutions and leveraging modern AI engineering tools such as Claude, Cursor, and LLM-powered development assistants to accelerate feature development, optimization, debugging, automated test generation, and large-scale refactoring. Strong expertise in microservices architecture, real-time applications, Redis caching, multi-tenant SaaS platforms, and backend performance optimization. Skilled in building secure, scalable systems with containerized deployments, CI/CD automation, workflow orchestration, and cloud infrastructure—recognized for strong problem-solving, communication, and consistent delivery in fast-paced remote environments.…Senior Full-Stack Engineer with 7+ years of experience designing and building scalable, cloud-native applications using Next.js, NestJS, Node.js, TypeScript, and AWS. Experienced in developing AI-enabled solutions and leveraging modern AI engineering tools such as Claude, Cursor, and LLM-powered development assistants to accelerate feature development, optimization, debugging, automated test generation, and large-scale refactoring. Strong expertise in microservices architecture, real-time applications, Redis caching, multi-tenant SaaS platforms, and backend performance optimization. Skilled in building secure, scalable systems with containerized deployments, CI/CD automation, workflow orchestration, and cloud infrastructure—recognized for strong problem-solving, communication, and consistent delivery in fast-paced remote environments.

Abubakar Khan

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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Senior Full-Stack Engineer with 7+ years of experience designing and building scalable, cloud-native applications using Next.js, NestJS, Node.js, TypeScript, and AWS. Experienced in developing AI-enabled solutions and leveraging modern AI engineering tools such as Claude, Cursor, and LLM-powered development assistants to accelerate feature development, optimization, debugging, automated test generation, and large-scale refactoring. Strong expertise in microservices architecture, real-time applications, Redis caching, multi-tenant SaaS platforms, and backend performance optimization. Skilled in building secure, scalable systems with containerized deployments, CI/CD automation, workflow orchestration, and cloud infrastructure—recognized for strong problem-solving, communication, and consistent delivery in fast-paced remote environments.…Senior Full-Stack Engineer with 7+ years of experience designing and building scalable, cloud-native applications using Next.js, NestJS, Node.js, TypeScript, and AWS. Experienced in developing AI-enabled solutions and leveraging modern AI engineering tools such as Claude, Cursor, and LLM-powered development assistants to accelerate feature development, optimization, debugging, automated test generation, and large-scale refactoring. Strong expertise in microservices architecture, real-time applications, Redis caching, multi-tenant SaaS platforms, and backend performance optimization. Skilled in building secure, scalable systems with containerized deployments, CI/CD automation, workflow orchestration, and cloud infrastructure—recognized for strong problem-solving, communication, and consistent delivery in fast-paced remote environments.

Available to hire

Senior Full-Stack Engineer with 7+ years of experience designing and building scalable, cloud-native applications using Next.js, NestJS, Node.js, TypeScript, and AWS. Experienced in developing AI-enabled solutions and leveraging modern AI engineering tools such as Claude, Cursor, and LLM-powered development assistants to accelerate feature development, optimization, debugging, automated test generation, and large-scale refactoring.

Strong expertise in microservices architecture, real-time applications, Redis caching, multi-tenant SaaS platforms, and backend performance optimization. Skilled in building secure, scalable systems with containerized deployments, CI/CD automation, workflow orchestration, and cloud infrastructure—recognized for strong problem-solving, communication, and consistent delivery in fast-paced remote environments.

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Work Experience

Senior Software Engineer at WAMO LABS

August 1, 2025 - Present

Architected and maintained scalable Node.js-based microservices to support AI-driven recruitment workflows across multiple tenants with strict data isolation. Integrated LLM-based automation to generate candidate insights, interview summaries, and workflow recommendations, and to automate onboarding and lifecycle management—reducing manual recruiter effort by 60%. Built Next.js dashboards for recruiters and enterprise clients with optimized performance for large-scale concurrent usage. Designed real-time systems using WebSockets + Redis Pub/Sub for live interview tracking, notifications, and multi-user collaboration. Implemented high-performance MongoDB aggregation pipelines and Redis caching to optimize query performance under high concurrency. Managed CI/CD pipelines using GitHub Actions with automated testing, linting, security checks, and deployment workflows. Ensured secure system design using JWT/OAuth2, RBAC, rate limiting, TLS encryption, and secure secret management.

Full Stack Engineer at DevnTech

February 1, 2021 - August 1, 2024

Built Node.js/Express backends for an AI-powered documentation automation platform serving multi-tenant care organizations, reducing document creation time from hours to minutes. Engineered LLM-powered smart document templates and integrated active feedback loops with React frontends, decreasing manual editing effort by 50% while improving output accuracy over time. Implemented a Docker and Kubernetes-enabled MERN ecosystem with Kafka-based asynchronous messaging, increasing system reliability and background job throughput by 65%. Developed a React frontend to improve adoption and reduce workflow completion time by 30%, including real-time collaborative editing via WebSocket-powered synchronization. Deployed MongoDB Atlas and PostgreSQL on AWS with automated backups, sharding, and query optimization to accelerate analytics cycles by 40%. Collaborated with ML, data, and DevOps teams to streamline deployments and achieve faster, more consistent release cycles.

Software Engineer at LumenSoft Technologies

July 1, 2018 - January 1, 2021

Developed a full-stack MERN application for osteoarthritis stage prediction where users upload X-ray images and receive real-time AI-powered classifications. Built React frontend workflows for image upload and results dashboards, and a Node.js/Express backend to handle AI model inference. Integrated a Python ML inference service (VGG-16/CNN) with the Node.js backend through a REST microservice bridge, achieving 92% classification accuracy and 89% F1-score. Deployed the MERN app using Docker on AWS EC2 for scalable, reliable access for multiple concurrent users with high uptime. Optimized MongoDB queries and Express API response times to reduce prediction latency by 30% and improve user experience.