# Filmon Tesfay > Senior Java Full-Stack Developer | Microservices | Spring Boot | AWS & Azure | Banking & FinTech Location: West Des Moines, Iowa, United States Profile: https://flows.cv/filmontesfay Experienced Software Engineer with over 7+ years of hands-on experience in designing, developing, and maintaining robust software solutions. Proficient in a wide range of technologies, including Java, JavaScript, Spring Boot, Angular, and database systems. Adept at designing and implementing web applications, microservices, and RESTful APIs. Seeking opportunities to contribute expertise and drive innovation in software development. Working knowledge of Jenkins for continuous integration and for End to End automation for all Build and deployments. Good at Documenting and Understanding User requirements and System Specifications. Good knowledge of Implementing DevOps practices for CI/CD pipelines, automated testing, and infrastructure as code (IAC) using tools like Jenkins, Terraform, or Google Cloud Build. Proficient in implementing industry best practices, version control, and continuous integration. Skilled in identifying opportunities for performance optimization, debugging complex issues, and delivering highquality code. Experience with centralized state management using React-Redux or other state container libraries. Expert in the end-to-end software development lifecycle, with a strong focus on designing, developing, and maintaining web-based consumer applications and Java applications using diverse frameworks. Experience with In - Depth knowledge in J2EE platform with SQL. ## Work Experience ### Full-stack Developer @ Wells Fargo Jan 2023 – Present | New York, United States Led backend development for Wells Fargo's Digital Banking Modernization, building Spring Boot microservices on AWS EKS to migrate legacy mainframes, handling 5M+ daily transactions with 99.99% uptime using Hibernate/JPA and Terraform IaC. Developed responsive React frontend with Redux and Stripe integration for real-time customer dashboards, slashing response times 40% via Redis caching despite legacy data flakiness in 9-person Agile team. Optimized ETL pipelines with Airflow/Python for seamless data sync, implementing OAuth2/JWT and ELK logging to achieve zero DoddFrank audit findings and 98% first-pass yields. Collaborated with cross-functional team (4 devs, 2 frontend, 2 QAs, 1 DevOps) using Jira/Confluence, resolving migration challenges through validation scripts and auto-scaling for peak-hour stability. Drove CI/CD enhancements with GitHub Actions and Docker, cutting deployment cycles 50%; mentored juniors on OWASP security practices for high-availability banking APIs. Delivered measurable impact by refactoring APIs for sub-100ms responses, boosting mobile integration speed 35% and earning recognition for compliance-ready, scalable enterprise solutions. ### Full-stack Developer @ Infosys Jan 2021 – Jan 2023 | Dallas, Texas, United States Developed Azure OpenAI-powered chatbot backend using Spring Boot + Azure Functions for Fortune 500 retail client at Infosys, orchestrating REST/GraphQL APIs with Cognitive Services NLP to automate 70% customer queries (500K+ users) achieving 95% resolution accuracy and $2.4M annual cost savings. Engineered React/TypeScript conversational UI with multi-turn state management and real-time sentiment analysis, boosting CSAT 25% through personalized GPT responses; integrated Azure Logic Apps/Power Automate for ServiceNow ticket automation and inventory workflows. Deployed serverless architecture on Azure Kubernetes Service (AKS) with Terraform IaC and Azure DevOps CI/CD pipelines, enabling bluegreen deployments that cut release cycles 50% while maintaining 98.5% uptime across 10K+ concurrent sessions. Implemented RAG architecture with Pinecone vector database and 10TB enterprise knowledge base, eliminating AI hallucinations (85% reduction) and supporting 12-language global operations via Azure Translator integration. Led security/compliance for GDPR/CCPA with Azure Key Vault, Private Endpoints, and OWASP-secured endpoints in 12-person Agile team; achieved zero PII breaches while mentoring 3 junior developers on Azure AI patterns. Optimized high-concurrency performance resolving Azure Functions cold starts through Always Ready instances and AKS auto-scaling, delivering p99 latency <300ms; integrated Application Insights/Prometheus for proactive monitoring. ### Full-stack Developer @ Liya Enterprise LTD Jan 2018 – Jan 2021 | Asmara, Eritrea Developed full-stack e-commerce dashboard at Liya Enterprise LTD, engineering Spring Boot backend with Hibernate for inventory/supply chain APIs integrated with AWS S3/Redshift data lakes, cutting order delays 30% for Asia-US logistics. Built responsive React frontend with Chart.js visuals, mobile-first Flexbox design, and real-time supplier webhooks, enabling SMBs to track 500K+ records with sub-100ms query responses despite cross-border traffic variability. Implemented Docker/Kubernetes orchestration on AWS EKS to handle 3x traffic spikes from Asia ops, using horizontal pod autoscaling and CDN caching, and eliminating downtime during peak import/export seasons. Enforced GDPR/OWASP compliance via JWT token anonymization, S3 encryption, and Python ETL scripts for data masking; secured logistics platform with zero privacy findings or breaches in 6-person remote team. Automated ETL workflows with Airflow and SQL optimization on Redshift, streamlining supplier audits and order fulfillment; boosted platform adoption 45% through intuitive, real-time tracking interfaces. Collaborated Agile-style with 3 full-stack devs (lead role: you), 1 QA (Ravi Kumar), Business Analyst (Sophia Lee), and Founder/PO (Aria Novak), using Jira for sprints and Confluence for traceability. Resolved unreliable third-party webhook APIs with Resilience4j circuit breakers, exponential backoff retry queues, and fallback dashboards, ensuring 99.9% delivery rates and 2x order volume capacity ## Education ### Master's degree in Computer Science Maharishi International University ### Bachelor's degree in Computer Science Eritrea Institute of Technology ## Contact & Social - LinkedIn: https://linkedin.com/in/filmontesfay --- Source: https://flows.cv/filmontesfay JSON Resume: https://flows.cv/filmontesfay/resume.json Last updated: 2026-04-18