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I am an Expert MERN Full Stack Developer and Technical Lead with 10+ years of experience designing, developing, and delivering secure, scalable, and high-performance enterprise applications. My expertise includes React, Next.js, Node.js, Java, Spring Boot, Microservices, REST APIs, AWS, Kubernetes, Kafka, and AI-powered application development. I help businesses build modern web applications, backend services, cloud-native platforms, and enterprise-grade systems that are reliable, scalable, and easy to maintain. I have strong experience in both frontend and backend development, with a focus on clean architecture, performance, security, and production-ready delivery. My technical expertise includes: Frontend: React, Next.js, JavaScript, TypeScript, HTML, CSS Backend: Java, Spring Boot, Spring MVC, Spring Security, Node.js, REST APIs, GraphQL, gRPC, SOAP Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, GitHub Actions, Terraform, CI/CD Databases & Messaging: Oracle, PostgreSQL, MySQL, SQL Server, MongoDB, Redis, Kafka, RabbitMQ, ActiveMQ AI & Modern Apps: AI integration, API-based AI solutions, cloud-based intelligent applications Testing & Quality: JUnit, Mockito, API testing, performance tuning, logging, monitoring, code review In my recent technical leadership role, I architected cloud-based and serverless platforms using AWS, Spring Boot, Kafka, and Kubernetes, helping improve loan processing speed by 35%, reduce infrastructure costs by 30%, and improve approval accuracy by 15%. I have also designed secure systems for managing sensitive customer data, implemented CI/CD automation, mentored developers, and delivered enterprise solutions in highly regulated environments. I can help you with: Backend and full stack application development React / Next.js web application development Node.js API development Java Spring Boot microservices REST API and GraphQL API development AWS cloud-native application development AI feature integration into existing applications Kafka / RabbitMQ / ActiveMQ integration Database design and query optimization Legacy system modernization CI/CD setup and deployment automation Performance tuning and troubleshooting Technical architecture and code review I believe in delivering clean, maintainable, secure, and production-ready solutions with proper documentation, testing, logging, and best engineering practices. Let’s connect if you need a reliable full stack developer who can design, build, troubleshoot, and deliver modern Java, React, Node.js, AI, and cloud-based applications.

👑𝗧𝗼𝗽 𝟭% 𝗘𝘅𝗽𝗲𝗿𝘁-𝗩𝗲𝘁𝘁𝗲𝗱 𝗧𝗮𝗹𝗲𝗻𝘁 | 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗣𝘆𝘁𝗵𝗼𝗻 & 𝗙𝗮𝘀𝘁𝗔𝗣𝗜 | 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 If you are ready to hit the ground running, or need help crystalizing your requirements, I can help you execute your product at every stage. I have extensive experience in building AI powered large scale distributed web/mobile applications I am an Ivy league graduate based in US (Silicon Valley) with 10 years of experience in designing and delivering full stack applications. I have built wide variety of python & react based applications with comprehensive understanding of containerization (docker) and cloud based CI/CD processes (Azure, GCP, AWS). I am well versed in Restful APIs, MVC frameworks and database integrations (SQL & NoSQL). I can not only help you build products but help you build a solid and scalable foundation that helps your business & application to grow with minimal overhead.

Data Engineering | Cloud Solutions (AWS/GCP/Azure) | ETL Pipelines | Spring Boot | SQL Performance Tuning | Apache Hadoop & Spark | Snowflake | dbt | Enterprise Backend Systems I am a 𝗨𝗦-𝗯𝗮𝘀𝗲𝗱 𝗦𝗲𝗻𝗶𝗼𝗿 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗮𝗻𝗱 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿, 𝗖𝗹𝗼𝘂𝗱 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝘄𝗶𝘁𝗵 𝗼𝘃𝗲𝗿 𝟴 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗹𝗲𝘃𝗲𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 building high-performance systems for Fortune 500 companies, including JPMorgan Chase and Ford Motor Company. I specialize in designing scalable backend microservices, optimizing slow databases, and architecting heavy big data pipelines that process millions of records without downtime. 📌 𝗥𝗘𝗦𝗨𝗟𝗧𝗦 𝗜'𝗩𝗘 𝗗𝗘𝗟𝗜𝗩𝗘𝗥𝗘𝗗 ▸ Reduced a 6-hour Hadoop batch process to under 10 minutes by designing a real-time Apache Beam & GCP Dataflow pipeline. ▸ Built core credit card banking microservices at 𝗝𝗣𝗠𝗼𝗿𝗴𝗮𝗻 𝗖𝗵𝗮𝘀𝗲 handling millions of daily transactions ▸ Architected GCP Dataflow pipelines at 𝗙𝗼𝗿𝗱 𝗠𝗼𝘁𝗼𝗿 𝗖𝗼𝗺𝗽𝗮𝗻𝘆 processing millions of records into BigQuery daily ▸ Delivered digital banking platforms powering retail and corporate banking across open banking environments ▸ Reduced ETL data processing times by over 99% for healthcare and enterprise clients ▸ Built mobile backend microservices at 𝗝𝗲𝘁𝗕𝗹𝘂𝗲 𝗔𝗶𝗿𝘄𝗮𝘆𝘀 serving thousands of daily travelers ▸ Administered high-availability database systems for federal government procurement 🛠️ 𝗧𝗘𝗖𝗛𝗡𝗜𝗖𝗔𝗟 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 & 𝗖𝗢𝗥𝗘 𝗦𝗞𝗜𝗟𝗟𝗦 Backend Development: Java (8, 11, 17), Python, Kotlin,Spring Boot, Spring Security, JWT Authentication, Microservices Architecture, RESTful APIs, GraphQL, Apigee, Swagger/OpenAPI. Data Engineering & ETL: Apache Spark, Apache Hadoop, Apache Beam, Apache Hive, Spring Batch, Apache Airflow, Spring Cloud Dataflow, Data Ingestion Pipelines. Cloud & Infrastructure: Google Cloud Platform (GCP) [Cloud Run, Cloud Functions, BigQuery, GKE], Amazon Web Services (AWS) [Lambda, S3, Redshift, EKS], Microsoft Azure. Databases & Caching: PostgreSQL, SQL Server, MongoDB, MySQL, Redis Caching, SQL Performance Tuning, Schema Design, Data Warehousing. DevOps & Automation: Terraform (Infrastructure as Code), Kubernetes, Docker, CI/CD Pipelines (GitHub Actions, Jenkins, Tekton) 🏭 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 Fintech · Digital Banking · Healthcare · Government · Automotive · Enterprise SaaS · Education · E-commerce · Travel & Hospitality · Open Banking ✅ 𝗣𝗘𝗥𝗙𝗘𝗖𝗧 𝗙𝗜𝗧 I work best with teams who: → Need Java or Python expertise without hand-holding → Have APIs, pipelines, or databases that need fixing or scaling → Are building on AWS, GCP, or Azure and need someone who knows these environments → Want clean maintainable code delivered on time → Need a developer who can also talk to clients and stakeholders professionally I don't just write code, I architect & build systems that process millions of records, reduce company costs, and stay alive at scale. I communicate clearly, deliver on time, and bring Fortune 500 engineering standards to every project regardless of size. Ready to build something that scales? Send me a message or 𝗰𝗹𝗶𝗰𝗸 𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯. I respond within a few minutes. Data Engineer, Senior Data Engineer, Big Data Engineer, ETL Developer, ETL Pipeline Developer, Data Pipeline Engineer, Data Warehouse Engineer, Cloud Data Engineer, GCP Data Engineer, AWS Data Engineer, Python Developer, Backend Developer, Backend Engineer, Java Developer, API Developer, Data Migration Specialist, Data Integration Engineer, Database Architect, Database Designer, SQL Developer, Apache Spark Developer, PySpark Developer, Apache Airflow Developer, Apache Kafka Developer, Data Orchestration Engineer, Streaming Data Engineer, Real-Time Data Pipeline Developer, BigQuery Developer, Google Cloud Platform Engineer, AWS Lambda Developer, AWS Glue Developer, Amazon Redshift Developer, Terraform Engineer, DevOps Engineer, Kubernetes Engineer, Docker Engineer, CI/CD Engineer, Cloud Migration Specialist, Cloud Infrastructure Engineer, Legacy System Modernization, Microservices Developer, Spring Boot Developer, Data Analytics Engineer, Data Modeling Specialist, Query Optimization Expert, Data Quality Engineer, Data Pipeline Automation, Batch Processing Developer, Data Ingestion Specialist, ETL/ELT Developer, Multi-Cloud Architect

I am a full-stack software engineer with 10+ years of experience specializing in PHP, Laravel, WordPress, and JavaScript developments. I help clients translate their concepts into reality and building their applications from the ground up. For small or large projects, I start by fully understanding the needs and providing solid designs, then move onto implementations and finish with post-work maintenance to meet their requirements. I primarily work on custom-built web applications, frameworks, WordPress themes/plugins, Laravel projects, general-purpose websites, e-commerce, and JavaScript-based applications. I also help setting up back-end services, caching servers, micro-services, and more. My field of works includes: [PHP] - Laravel custom platforms/frameworks development - Full-cycle PHP application design - Module development - API design and implementation - Third party integration - SMTP/POP automated emails - SMS integration - Caching and optimization - Vanilla PHP development - Troubleshoot and bug fix [WordPress] - Creative design and development - Plugin/themes design and implementation - WooCommerce integration - Payment integration - Troubleshoot and bug fix - SEO and site optimization [Front-End Development] - Vue Development - Vanilla JavaScript development - Custom build front-end libraries - Css/Saas/Less - WebPack/Babel - JQuery, JQuery mobile - Framework integration (BootStrap, Bulma, Vuetify) - WebRTC realtime video communication - WebSocket applications [Back-End Development] - Corn/Turn Server setup - WebSocket server - Node.js/Express.js server - REST/SOAP API server - GraphQL server - Caching server architecture - Distributed systems architecture design - Micro-Services - Scheduled batch tasks - Scheduled mailing services - Apache setup/config/troubleshoot - Load-balancer setup/config/troubleshoot [Database] - Database model and design - Third party database integration - Data normalization and consolidation - Cassandra clusters - Redis clusters - GraphQL implementation - Consistent hashing Whatever the size or the complexity of the work, I'm capable of helping you with all your web project needs. The relevant field of works: - Custom-built PHP frameworks - API designs and development - Mobile Apps - HealthCare/Telemedicine platforms - E-Commerce - Enterprise Systems - Data mining, consolidation, analysis, integration - Web apps/Cloud systems - Artificial Intelligence - Data Modeling - Streamline workflows Fast turnover with quality assurance.

Senior architect in the SRE/DevOps space -- I lead companies in the design and maintenance of critical software applications and infrastructure on AWS and Google Cloud Platform. My role typically involves leading engineering and DevOps teams, high-level technology strategies, building and implementing complex software stacks, API design, and automating processes. Other specialty areas: - Site reliability engineering - Horizontally scalable and highly available architectures - REST and gRPC API design - Automating development workflows and deployment pipelines - Microservice design - Monitoring, log aggregation - Single sign-on and federated login Skills and technologies: - Go, Python, PHP - AWS, GCP - Linux - ChatOps, build automation, CI/CD - Jenkins, CircleCI, Shippable, SemaphoreCI, Cloudbuild - Kubernetes CoreOS, Docker, Terraform - MySQL, Postgres, Cassandra, Redis, MongoDB, DynamoDB, Memcached, ElasticSearch, Google Datastore, CockroachDB - RabbitMQ, SNS - Front-end stack (HTML, CSS, Sass, JavaScript) - NGiNX, uWSGI, stunnel, HAProxy, Apache, Logstash, Fluentd - Airflow, Google Dataflow

"Christiana was a life saver. Her skills, expertise, willingness to help, and talent got us out of a real crisis. She integrated with our team seamlessness, put us onto the path to success, and then transitioned out gracefully. Anm indispensable engineering resource for us." -- Upwork Client "Overall, working with Christiana has been an absolute pleasure. Her professionalism, expertise, and dedication have made a significant positive impact on our project's success. I have no hesitation in recommending her to others seeking a highly skilled and committed data expert." -- Upwork Client I am an SME with years of experience in - Oracle database administration - DB and SQL performance tuning - SQL & PL/SQL development in Oracle, SQL Server, MySQL/MariaDB, & PostgreSQL - Software development in C++/Java/Python - System automation in Kubernetes, Docker, Chef, Ansible, vRA, and Cloudbolt - Multi-cloud experience in AWS, Azure, and GCP - DevOps and Agile I have certifications in: * Oracle Database Administrator Certified Professional * AWS Certified Solutions Architect - Professional * AWS Certified Database - Specialty * Project Management Professional - PMP * Certified SAFe 5 Practitioner * EMT I have experience in the following businesses and industries: + Telecom + Information Technology and Data + Banking and Online Payment + Aerospace Supplier + Energy + Insurance + Testing/Education + Healthcare and First Responder + BioTech and TeleHealth + Academic Research in Smart Home + Sport Science Nothing is unsolvable, and I am here to deliver the solution. Customer satisfaction is my highest priority!