Ryan Dunbar
Texas
Summary
Senior Backend Engineer with over 10 years of expertise in Golang, Python, JavaScript, TypeScript, and scalable microservices architectures. Specialized in event-driven systems, data pipelines, and full-stack development using React, Next.js, and Tailwind CSS, delivering high-performance, secure solutions. Proficient in cloud computing on AWS, Azure, and Google Cloud Platform, with Kubernetes orchestration and Terraform for infrastructure as code. Skilled in security-focused data pipeline architecture, observability, and forensic investigations, alongside NoSQL and SQL databases like MongoDB, PostgreSQL, and DynamoDB. Adept at CI/CD tools, RESTful APIs, Test-Driven Development (TDD), and Agile methodologies, collaborating with security and engineering teams to enhance platform reliability and compliance throughout the software development lifecycle.
Overview
9
9
years of professional experience
1
1
Certification
Work History
Senior Backend Engineer
SumatoSoft
09.2021 - Current
- Directed system code reviews with CQRS strategies, lowering API latency by 50 milliseconds and increasing monthly active users by 1,000 within three months.
- Architected microservices platform using Golang (Gin, Fiber, Chi) and TypeScript (NestJS), integrating GraphQL, gRPC, and RESTful APIs, boosting throughput by 500 requests per second for secure data pipelines.
- Spearheaded full-stack development with React, Next.js, and Tailwind CSS, increasing average session duration by 30 seconds through robust API integrations.
- Orchestrated Kubernetes clusters on AWS (EC2, Fargate, Lambda, EKS) with Docker and Terraform, saving $3,000 annually through serverless architectures and ensuring 99.9% uptime.
- Engineered event-driven architectures with Apache Kafka and AWS SQS/SNS, supporting 500,000 daily transactions with real-time processing for security observability.
- Enhanced observability with Prometheus, Grafana, and ELK Stack, achieving 99.9% uptime (8 hours annual downtime) and enabling rapid detection of security incidents.
- Streamlined CI/CD pipelines with Jenkins, GitHub Actions, and Terraform, reducing deployment time from 5 to 3 hours and maintaining high code quality with TDD.
- Refined DynamoDB and MongoDB databases with sharding and indexing, handling 1,000 queries per second for high-volume security data, supporting forensic investigations and compliance.
- Mentored 5+ junior developers on TDD using GoConvey and Jest, reducing critical bugs by 10 per month and fostering secure coding practices.
- Developed Python-based data processing scripts using libraries like Pandas and NumPy for ETL pipelines, automating data ingestion from diverse sources and improving efficiency by 15% in security analytics workflows.
- Collaborated with cross-functional teams to decompose business requirements into technical tasks, accurately estimating efforts and participating in solution design sessions for optimized, refactorable code.
Golang Engineer
Appian
01.2019 - 08.2021
- Devised scalable backend services in Golang (Echo, GORM) and Python, implementing gRPC and RESTful APIs to reduce latency by 50 milliseconds and support secure data pipelines.
- Constructed React-based frontend with Vue for cross-framework compatibility, reducing page load times by 200 milliseconds for responsive design and seamless API integrations.
- Accelerated CI/CD pipelines using Jenkins, Docker, and Azure, shortening release cycles from 10 to 7 days.
- Tuned PostgreSQL and MongoDB databases with advanced SQL queries and caching, speeding data retrieval by 100 milliseconds for analytics dashboards.
- Integrated RabbitMQ and Redis Pub/Sub for event-driven messaging, enabling 1,000 messages per second in distributed systems with enhanced resilience.
- Led TDD with GoConvey and Mocha, integrating tests into Jenkins for continuous quality assurance and achieving 85% code coverage.
- Incorporated Spring Boot for Java-based microservices, migrating legacy systems to modern architectures with under 1 hour of downtime.
- Executed performance tuning via New Relic and SonarQube, improving API performance by 30 milliseconds and resolving production bottlenecks.
- Utilized AWS Lambda and EC2 for server management, leveraging AWS SDK to handle 500 S3 storage operations per second for object storage services.
- Designed secure APIs with SSL/TLS and OpenID Connect, passing all security audits with zero unauthorized access incidents.
- Implemented Python automation tools with frameworks like Fast API and Celery for task queuing, debugging software defects, and maintaining high standards for code quality in production environments.
- Participated in regular code reverse engineering sessions to analyze existing systems, refactor for optimized solutions, and document technical decompositions of business requirements.
Backend Engineer
Certain Affinity
06.2016 - 12.2018
- Forged RESTful APIs using Golang (ServeMux, GORM, Gorilla Mux) and JavaScript (Node.js), supporting scalable product development for 10K+ users and reducing API response times by 50 milliseconds.
- Crafted Angular-based frontend components, integrating with backend services to build full-stack expertise and improve front-end performance by 18% for key features.
- Oversaw MySQL and Redis databases, optimizing queries and caching for 10K+ monthly active users.
- Deployed AWS infrastructure (EC2, S3) with Docker containerization and cloud best practices, reducing setup time from 8 to 5 hours and supporting 99.5% infrastructure reliability.
- Collaborated on Agile workflows, Test-Driven Development, and code reviews to ensure code quality and team collaboration.
- Pioneered event-sourced systems using CQRS patterns, improving data consistency in microservices and enabling 15% faster data synchronization across 10+ services.
- Established monitoring with CloudWatch and DataDog, enabling early detection of performance issues and reducing incident response time from 1 hour to 40 minutes.
- Facilitated migration to serverless Lambda functions, reducing operational overhead by 35% for noncritical services and saving over $10K annually in maintenance costs.
- Authored unit tests with G-Test and Mockito, achieving 90% code coverage for Java and Golang components across key modules.
- Scripted Python automation tasks, enhancing build and deployment processes and automating 70% of manual workflows for a 50% speed increase in releases.
- Contributed to full development lifecycle by decomposing requirements, coding new features, resolving defects, and documenting solutions for maintainable, scalable systems.
Education
Bachelor's Degree - Information Technology
Virginia College
Birmingham, AL05.2016
Skills
- Languages: Golang, JavaScript, TypeScript, Java, Python (Pandas, NumPy, FastAPI, Celery, python-ldap, cryptography), C#
- Backend: Nodejs, NestJS, Expressjs, Fastify, Echo, Gin, Fiber, Chi, ServeMux, GORM, Gorilla Mux, gRPC, GraphQL, REST APIs
- Frontend: React, Nextjs, Tailwind CSS, Vue, Angular
- Cloud/DevOps: AWS (EC2, Fargate, S3, Lambda, SQS, SNS, CloudFormation, EKS, ECS), Google Cloud Platform, Azure, Kubernetes, Docker, Helm, Terraform, Ansible, Jenkins, GitHub Actions
- Databases: MongoDB, MySQL, PostgreSQL, Redis, Elasticsearch, DynamoDB, Couchbase, Cassandra
- Messaging: Apache Kafka, RabbitMQ, AWS SQS/SNS, Redis Pub/Sub
- Architecture: Microservices, Event-driven Architecture, CQRS, Domain-Driven Design, Serverless
- Monitoring/Logging: Prometheus, Grafana, ELK Stack (Elasticsearch, Logstash, Kibana), CloudWatch, DataDog, SonarQube, New Relic
- Testing: GoConvey, G-Test, Jest, Mocha, Postman, Swagger, Mockito
- Security: OAuth 20, JWT, OpenID Connect, SSL/TLS, Linux PKI, SSH Key Management, LDAP, MFA, Single Sign-On
- Practices: Continuous Integration/Continuous Deployment (CI/CD), Test-Driven Development (TDD), Behavior-Driven Development (BDD), Agile/Scrum, Code Review, Performance Optimization, System Design
- Tools: JIRA, Confluence, Git, GitHub, GoLand IDE, VS Code
Certification
- AWS Certified Developer – Associate (2023)
- Certified Kubernetes Application Developer (CKAD) (2021)
- Google Cloud Professional Cloud Architect (2020)
Languages
English
Timeline
Senior Backend Engineer
SumatoSoft
09.2021 - Current
Golang Engineer
Appian
01.2019 - 08.2021
Backend Engineer
Certain Affinity
06.2016 - 12.2018
Bachelor's Degree - Information Technology
Virginia College