Senior Full-Stack Software Engineer (TS/SCI)

***** ******* ***. ***: +* (***) *** - ****

Lanham, MD. 20706 Email: ******.******@*******.***

Vanney Deutou - Senior Full-stack Software Engineer US Citizen TS/SCI clearance Summary & Objective

Senior Full-Stack Software Engineer with 11+ years of experience designing, developing, and scaling enterprise-grade applications across modern frontend, backend, and cloud ecosystems. Expert in Angular, React, TypeScript, JavaScript, Node.js, Python, and Java with Spring Boot, as well as C#/.NET Core and microservices architecture. Strong proficiency in relational and NoSQL databases including PostgreSQL, SQL Server, MySQL, and MongoDB, with proven results in performance tuning, API optimization, and scalable system design for both .NET and Java-based applications. Experienced in AWS cloud services, CI/CD automation, and DevOps pipelines. building serverless solutions using AWS Lambda, API Gateway, and writing Python automation scripts for deployment. Skilled in Docker, Git-based workflows, IaC, REST API development, and event-driven architectures. On the frontend, specialized in delivering responsive, accessible, component-driven UIs using Angular, React, SCSS, Tailwind, Bootstrap, Angular Material, Material UI, and custom UI libraries. Proficient in UI/UX prototyping with Figma and Adobe Creative Suite.

Certified Scrum Master with deep Agile, Scrum, and Kanban experience, strong mentorship background, and a track record of leading code reviews, enforcing engineering standards, and collaborating across design, QA, and product teams. Adept at driving architectural improvements, resolving complex production issues, and delivering high-quality software under aggressive timelines. Seeking a senior engineering role where I can continue contributing hands-on expertise in full-stack development, cloud engineering, DevOps automation, and scalable architecture within a high-impact, innovation-driven environment. Education

• Bachelor of Science – University of Maryland University College May 2015 Certifications

• CompTIA Security+

• Certified Scrum Master

• AWS, DevOps Professional

Employment History:

Prescient Edge – Senior FullStack Software Engineer August 2024 – Present

• Built scalable backend microservices using Java/Spring Boot, Node.js, Python, and C++, implementing JWT/OAuth authentication, middleware, async workers, cron schedulers, REST APIs, and gRPC/Kafka communication.

• Extended Stellarium (C++/Qt) with UDL satellite metadata integration, real-time rendering, mission-type filtering, TACREP/POCA tools, dynamic overlays, SQLite query engines, and performance-optimized UI.

• Developed Python-based ETL pipelines and automation scripts for ingesting, validating, transforming, and synchronizing large datasets from APIs, files, and external satellite intelligence sources.

• Delivered responsive, modular front-end applications using Angular + NgRx, Material, Tailwind, and automated UI testing with Cypress, Karma, and Playwright.

• Designed and deployed serverless and containerized solutions on AWS, including Lambda, API Gateway, S3, CloudWatch Logs, IAM, EC2, and automated deployments using Python, Bash, and CI/CD pipelines.

• Implemented DevOps best practices: containerized services with Docker, created automated pipelines using Jenkins, GitLab CI/CD, CircleCI, and monitored applications using AWS tools and log aggregation systems.

• Worked across SQL/NoSQL systems (PostgreSQL, MySQL, MongoDB, Redis), leveraging ORM tools like Mongoose, TypeORM, and implementing optimized indexing strategies for high-performance queries.

• Developed cross-platform C++ systems using Qt, CMake, STL, multithreading, and OpenGL, focusing on memory management, performance, and integration with scientific visualization tools.

• Delivered high-quality solutions in Agile/Scrum teams, collaborating on architecture design, requirements gathering, sprint planning, and code reviews to support complex multi-service ecosystems. Navitus Health Solutions – Fullstack Software Engineer / DevOps June 2023 – August 2024

• Built scalable async workflows using TypeScript (async/await) and Python (asyncio) to handle high-volume, I/O-heavy backend operations.

• Developed secure backend systems with JWT, RBAC, validation middleware, and error-handling patterns across Node.js and Java Spring Boot microservices.

• Built microservices using Java (Spring Boot), Node.js, Express, and NestJS, integrating REST and GraphQL APIs and implementing messaging via Kafka and event-driven workflows.

• Delivered production of ReactJS applications using React, TypeScript, Redux Toolkit, Material-UI, Tailwind, with performance optimizations (lazy loading, memorization) and automated testing using Jest and React Testing Library.

• Containerized applications with Docker and automated builds/tests/deployments using Kubernetes

• Designed and deployed workloads on AWS ECS (Fargate/EC2) and built serverless microservices with AWS Lambda + API Gateway, automated via AWS SAM and Serverless Framework.

• Provisioned cloud infrastructure using Terraform, creating VPCs, subnets, EC2, RDS, DynamoDB, S3, CloudFront, IAM roles, and security groups following IaC best practices.

• Implemented observability using CloudWatch, X-Ray, CloudTrail, Prometheus, and Grafana for logging, metrics, tracing, and auditing.

• Managed backend storage using Amazon RDS (PostgreSQL/MySQL) and DynamoDB, enabling encryption, automated backups, and performance tuning.

• Automated scheduled jobs and multi-step workflows using AWS EventBridge, Lambda, and Step Functions, enforcing cloud security through IAM least privilege, KMS, and S3 bucket policies. Gentech Associates (Department of Interior) – Fullstack Software Engineer III February 2023 – June 2023

• Built scalable full-stack applications using C# .NET Core, ASP.NET MVC, and modern JavaScript frameworks including Vue.js 3 (Composition API), React + Redux, and Angular + D3.js for interactive dashboards and data visualization.

• Developed secure, high-performance RESTful APIs, integrating with SQL Server, PostgreSQL, and Azure SQL using Entity Framework, LINQ, stored procedures, and optimized indexing strategies.

• Strengthened backend reliability through xUnit, NUnit, and Moq test suites, and improved performance via caching layers, query tuning, and asynchronous programming patterns.

• Built dynamic, component-driven UIs using Vue 3, Bootstrap, SCSS, Material UI, and implemented state management patterns (Redux, Vuex/Pinia) for predictable application behavior.

• Deployed .NET and front-end apps to Azure Cloud Services, Azure Static Web Apps, and AWS S3/CloudFront, integrating CI/CD workflows and environment-based configuration.

• Enhanced team delivery through structured Swagger/OpenAPI documentation, code reviews, and close collaboration with QA for regression debugging and release readiness. Boeing Intelligence & Analytics – Lead Fullstack Software Engineer March 2019 – February 2023

• Implemented full observability using the ELK Stack, AWS CloudWatch Logs, OpenTelemetry, and Grafana, enabling deep insights into latency, throughput, error rates, and service health.

• Containerized full-stack applications with Docker, using multi-stage builds, custom health checks, and ECS Task Definitions for service discovery and production deployments.

• Automated build/test/deploy workflows with GitLab CI/CD, enabling environment-specific builds, canary releases, smoke testing, and ephemeral review environments.

• Secured microservices and REST APIs using Spring Security, OAuth2, Cognito, and JWT-based authentication with fine-grained RBAC and multi-tenant access controls.

• Designed and provisioned cloud infrastructure using AWS CDK (TypeScript) and Terraform, deploying ECS (Fargate), API Gateway, Lambda, RDS, and Elasticsearch with automated CI pipelines.

• Built backend and frontend test suites with Jest, React Testing Library, JUnit 5, Test containers, and MockMVC, achieving high reliability and fast feedback cycles.

• Integrated Kafka Streams and kSQL to process real-time events and compute aggregated metrics across microservice.

• Connected Elasticsearch with Spring Boot (Spring Data Elasticsearch) and Node.js, implementing advanced DSL queries: bool, match, range, nested, and aggregations for analytical dashboards.

• Built GraphQL APIs using graphql-java with custom schemas, resolvers, pagination, and filtering logic.

• Monitored Elasticsearch cluster health using Kibana, Elastic APM, and cluster APIs, resolving bottlenecks around slow queries, heap utilization, and GC pressure.

• Managed multi-node Elasticsearch clusters on AWS OpenSearch, Elastic Cloud, and managed EC2.

• Integrated Okta for identity and access management using OAuth2, OIDC, and SAML 2.0, enabling SSO and MFA with adaptive authentication policies.

• Built user lifecycle automation using Okta Workflows to simplify provisioning, access requests, and offboarding processes.

• Developed high-quality React applications using React Hooks (useState, useEffect, useMemo, useCallback, useRef, useContext) for state, side effects, and performance optimization.

• Integrated REST and GraphQL APIs into React using Apollo Client, implementing error handling, retry logic, caching, and cursor-based pagination.

Cisco Talos Intelligence – Software Developer / Backend August 2017 – March 2019

• Implemented robust request-validation layers using Marshmallow and Pydantic, ensuring strict data- contract enforcement and seamless alignment with OpenAPI/Swagger specifications via Flasgger and schema-first API design.

• Integrated Flask microservices with AWS Lambda using Zappa and API Gateway, enabling serverless execution environments, cold-start optimization, and environment-based deployment workflows.

• Enforced comprehensive security controls including CORS policies, CSRF protection, rate limiting, and input sanitization using Flask-Limiter, WTForms, and secure header configuration.

• Optimized frontend and API delivery using NGINX caching, gzip/Brotli compression, ETag & Last-Modified headers, and URL-based cache-busting strategies to reduce latency and Angular load times.

• Designed and implemented high-performance caching strategies using Flask-Caching, Redis, in-memory caching, and conditional GET requests to significantly improve throughput for accessed endpoints.

• Leveraged AWS services including API Gateway, Lambda, CloudFront, S3, CloudWatch, IAM, and RDS to design scalable, secure, and cloud architectures supporting Angular and Java-based backends.

• Built full-stack enterprise applications using Java Spring Boot for backend services and Angular for front- end experience, integrating role-based authentication, form validations, and reactive UI using RxJS.

• Developed and documented RESTful APIs consumed by Angular clients, ensuring consistent response models, validation flows, and error-handling patterns across microservices. United State Aviation & Missile Command, Full-stack Software Engineer II June 2013 – August 2017

• Worked extensively with Angular, TypeScript, JavaScript, PostgreSQL, Spring Boot, AWS, REST APIs, NgRx, RxJS, Redux, and toolchains including Git, VSCode, Jira, Confluence, Postman, and Jest.

• Experienced in Linux-based environments (Ubuntu, CentOS, Amazon Linux) for server provisioning, deployments, package management, and system monitoring.

• Automated operational tasks by writing Bash scripts for service management, log rotation, cron schedules, backups, and environment setups on Linux systems.

• Designed dynamic, data-driven UIs and dashboards using React, TypeScript, Material-UI, and TailwindCSS, ensuring responsive layouts and maintainable component architecture.

• Secured relational databases through RBAC, SSL/TLS encryption, password policies, and parameterized queries to mitigate SQL injection risks.

• Performed structured database migrations using Liquibase, Knex.js, and migration/versioning pipelines to maintain schema consistency across environments.

• Developed and consumed RESTful web services, leveraging JSON/XML payloads and consistent contract-based communication between distributed systems.

• Utilized ORM frameworks such as Hibernate (JPA), SQLAlchemy, TypeORM, and Django ORM for object modeling, relationships, and data mapping across polyglot backends.

• Collaborated with engineering teams to build and enhance Java/Spring Boot services, contributing to system-wide architectural improvements and cross-platform integration.

• Created automated database seeders and test data loaders to support TDD, integration testing, and CI/CD-powered test environments.

• Tuned db performance using EXPLAIN plans, index, query refactoring, table partitioning, and caching. References Upon Request

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