Senior software engineer

AMADY BA

Senior Full Stack Engineer

810-***-**** **********@*****.*** Sugar Land, TX

https://www.linkedin.com/in/amady-ba-dev1992/

Summary

Senior Full Stack Engineer with 11+ experience developing and scaling web applications in industries like fintech, insurance, and healthcare. Expertise in designing microservices architectures, optimizing system performance, and automating processes with AI tools. Skilled in using JavaScript, TypeScript, Python, and modern cloud platforms to deliver reliable, high- availability systems. Proven leader in managing migrations, improving system efficiency, and mentoring teams to adopt best practices for consistent, high-quality delivery. Work Experience

Senior Full Stack Engineer Lemonade

Feb 2021 – Present New York, NY

• Led architecture of a multi tenant insurance payment platform using TypeScript, Node.js, NestJS, and Spring Boot, processing 250K+ monthly transactions with 99.95% uptime on AWS EKS and Azure Kubernetes Service

• Directed migration of legacy .NET Framework services into ASP.NET Core and Python FastAPI microservices, reducing deployment time by 38% through Docker and Kubernetes orchestration

• Architected domain driven microservices with Hibernate and PostgreSQL, aligning bounded contexts for billing and claims which improved release stability by 27%

• Implemented event driven pipelines with Apache Kafka and Kafka Streams, increasing throughput by 32% during peak enrollment periods

• Delivered React and Next.js frontends with TypeScript and Zustand state management, lowering initial load time and improving user session duration by 21%

• Integrated LLM powered document analysis using LangChain and RAG over vector indexed policy data, decreasing manual underwriting effort by 24%

• Optimized Redis caching layers and advanced indexing strategies in PostgreSQL and MongoDB, maintaining response times under 3x traffic growth

• Developed GraphQL gateways and SOAP adapters to unify REST microservices and external partners, cutting frontend API calls by 41%

• Strengthened authentication with OAuth2, JWT, and role based access control, achieving critical findings across 2 SOC audits

• Automated CICD pipelines using GitHub Actions, Terraform, and Azure DevOps, enabling shift from biweekly to daily production releases

• Established distributed tracing with Prometheus, Grafana, and Datadog, lowering mean time to resolution from 3 hours to 55 minutes

• Championed TypeScript code standards and OOP guidelines across 8 engineers, increasing unit coverage from 62% to 85% using Jest and Mocha

• Coordinated PCI compliance initiatives with finance stakeholders, preventing regulatory penalties during annual review cycles

• Produced Go based background processors for rating calculations, executing 1.2 million computations per day with consistent sub second latency

Senior Python Developer Modisoft

Mar 2018 – Feb 2021 Sugar Land, TX

• Engineered Python Django and FastAPI services for retail payment integrations, supporting 1200 stores and 180K daily POS transactions

• Designed REST and SOAP endpoints connecting Salesforce and SAP systems, shortening reconciliation cycles by 29%

• Built React and Vue interfaces with Redux and Zustand for inventory analytics, reducing stock discrepancies by 17%

• Created asynchronous task queues using RabbitMQ and Celery, raising nightly settlement capacity by 34%

• Tuned MySQL, MSSQL, and T-SQL queries through execution plan analysis, lowering report generation time from 14 minutes to 6 minutes

• Deployed containerized workloads to AWS ECS and GCP GKE with Terraform, improving environment consistency across staging and production by 31%

• Expanded automated test coverage with PyTest, Playwright, and Selenium, cutting regression defects by 21% before release

• Configured centralized logging via ELK Stack and Linux based servers, accelerating incident diagnostics by 37%

• Integrated third party payment gateways through secure tokenization and JWT validation, eliminating exposure of cardholder data

• Mentored 4 junior developers on SDLC processes and clean architecture practices, increasing sprint velocity by 16%

Full Stack Developer K&A Financial Group

Jun 2015 – Apr 2018 Sugar Land, TX

• Constructed ASP.NET MVC and C# services for loan processing workflows, handling 40K annual applications with consistent validation controls

• Implemented ADO.NET data access and stored procedures against SQL Server, trimming processing errors by 18%

• Developed Python based credit scoring jobs, accelerating approval turnaround time by 22%

• Refactored monolithic modules into layered components aligned with OOP and DDD concepts, reducing defect density across releases

• Configured Redis caching for borrower profiles, lowering database load by 26%

• Supported Angular internal dashboards by exposing secure REST APIs, improving underwriter productivity by 15%

• Assisted Azure virtual machine migration and IIS deployments, increasing service availability from 97% to 99.4%

Education

Bachelor’s Degree in Computer Science

The University of Texas at Dallas Nov 2010 - Jul 2015 Technical Skills

• Programming Languages: Python, JavaScript ES6, TypeScript, C#, Go, Java, SQL, Bash

• Frontend: React, Next.js, Vue.js, Angular, Redux, Context API, Tailwind CSS, Material UI, Webpack

• Backend: Node.js, Express.js, NestJS, Python FastAPI, Django, Flask, ASP.NET, ASP.NET Core, .NET Core, ADO.NET, Spring Boot, Spring MVC, Hibernate, REST APIs, GraphQL, WebSockets, Microservices Architecture

• AI and Automation: OpenAI APIs, LLM integration, Retrieval Augmented Generation, LangChain, Vector Databases, Prompt Engineering, NLP processing, Document Parsing

• Databases: PostgreSQL, MySQL, SQL Server, MongoDB, Redis, DynamoDB, ORM frameworks, Query Optimization, Indexing Strategies

• Messaging and Streaming: Apache Kafka, Kafka Streams, RabbitMQ, AWS SQS, Event Driven Systems

• Cloud and DevOps: AWS EC2, ECS, EKS, Lambda, Azure App Services, Docker, Kubernetes, Terraform, CloudFormation, CICD pipelines, GitHub Actions, Jenkins, Nginx

• Testing: PyTest, JUnit, xUnit, Jest, Cypress, Integration Testing, End to End Automation

• Monitoring and Observability: Prometheus, Grafana, ELK Stack, Datadog, Distributed Tracing, Centralized Logging

• Architecture: Domain Driven Design, SOLID principles, Secure API design, OAuth2, JWT, Role Based Access Control, High Availability Design

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