Reval Logo
Browse TalentFind TalentOpen JobsPricingFAQsGet Started
ScreenedIdentity Verified
No cost, no commitment - we'll make a personal intro
EM

Eoin McDonnell

Staff Python Backend Engineer specializing in cloud-native APIs and microservices

Awesome IncNorthern Kentucky UniversityLexington, Kentucky17 Years ExperienceStaff LevelWorks Remote

Connect with Eoin

Eoin already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

Recommended

Already have an account?

About

Backend/data engineer focused on production Python and AWS: built FastAPI REST services and a containerized ECS Fargate + Lambda architecture deployed via Terraform/CI-CD. Strong in data engineering (Glue/S3/Parquet/RDS) and operational reliability (CloudWatch/SNS, retries, schema-evolution handling), with experience modernizing legacy SAS reporting into Python microservices using feature flags and parity validation.

Hire with Reval

Find your next great hire

Our AI agents source, screen, and vet candidates for your open roles. Get qualified candidates within 48 hours.

$250one-time kickoff
10%on successful hire
Post a Role90-day money-back guarantee

Key Strengths

  • Designed modular, stateless FastAPI services with separation of routing/business/data layers
  • Implemented API reliability patterns: JWT auth, RBAC, request timeouts, standardized error responses
  • Delivered AWS production platform using ECS Fargate microservices plus Lambda for async/event-driven workflows
  • Infrastructure-as-code and automated deployments with Terraform and CI/CD building/testing Docker images
  • Secure configuration management using Secrets Manager/SSM with IAM role-based access
  • Built AWS Glue ETL from S3 and RDS/Postgres to partitioned Parquet on S3 with crawlers and schema evolution handling
  • Operationalized pipelines with CloudWatch monitoring/alarms, retries, and SNS notifications for failures
  • Modernized SAS reporting into Python microservice; validated parity via side-by-side historical comparisons and stakeholder sign-off; reduced migration risk with feature flags and fallback
  • Improved SQL performance using composite indexes and partition pruning, reducing runtime to under 3 minutes

Like what you see? We'll introduce you to Eoin directly.

Experience

Python Backend Engineer – Team LeadAwesome Inc / APAX Software · Jul 2023 – Nov 2025
Lead Software EngineerDormakaba · May 2020 – Jul 2023
Senior Software EngineerDormakaba · Aug 2016 – May 2020
Software EngineerDormakaba · Dec 2012 – Aug 2016
Java Software EngineerVXL IT · Mar 2009 – Nov 2011
Web Developer & Server AdministratorBT Broadband, BT Ireland · Apr 2006 – Feb 2008

Education

Northern Kentucky Universitymaster, Computer Science (2025)
Technological University Dublinmaster, Computer Science (2008)
Savannah College of Art and Designbachelor, Digital Arts (2005)

Skills

AgileAmazon EC2Amazon S3API DesignAuthenticationAuthorizationAutomated TestingAzure DevOpsAzure FunctionsCI/CDCloud ComputingContainerizationC#CSSData Modeling

Languages

English

Browse Similar

All Backend EngineersEngineeringAgileAmazon EC2Amazon S3API Design

Similar Candidates

MS

Muhammad Siddeek

Screened

Staff-level AR/VR and mobile engineer specializing in immersive video platforms

San Bruno, CA11y exp
GoogleAlexandria University

“Game engineer with hands-on experience shipping systems for Horizon Worlds, including a notification platform that unlocked friending, invites, and achievement/prize UX. Also brings applied LLM gameplay experimentation, multiplayer networking/debugging expertise, and cross-platform VR/mobile experience spanning Meta Quest and Android.”

C#PythonJavaSwiftC++Unity+77
View profile
WO

Williamson Oloo

Staff AI Full-Stack Engineer specializing in LLMs, multi-agent systems, and Voice AI

Gilbert, AZ10y exp
DriveHealthStanford University
AgileAPI DesignAzure Machine LearningBatch ProcessingC++CI/CD+136
View profile
KZ

Kevin Zhang

Senior Applied AI Engineer specializing in enterprise AI and ML platforms

San Diego, CA10y exp
GleanUCLA
PythonJavaJavaScriptTypeScriptSQLGo+111
View profile
AD

Andrew Davis

Senior Backend Developer specializing in cloud APIs and microservices

Mountain View, CA13y exp
GoogleUniversity of Texas at El Paso
API GatewayAPI DevelopmentAWSAWS LambdaC#Caching+54
View profile
AT

Allan Tang

Senior Software Engineer specializing in Python, cloud infrastructure, and AI-powered search

Milpitas, CA11y exp
DropboxUC Berkeley
PythonGoJavaScriptTypeScriptJavaSQL+94
View profile

Interested in Eoin?

We'll personally introduce you - no strings attached.

For Hiring Teams

Build your dream team with Reval

Our AI agents source, screen, and vet candidates for your open roles. Get qualified, high-intent candidates on your desk within 48 hours.

$250one-time kickoff
10%on successful hire
48hrsto first candidates
Post a Role90-day money-back guarantee. A fraction of traditional agency fees.

Discover more candidates like Eoin

Search across thousands of pre-screened, high-quality, high-intent candidates on Reval.

Search Talent

Connect with Eoin

Eoin already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

Recommended

Already have an account?

Hire with Reval

Find your next great hire

Our AI agents source, screen, and vet candidates for your open roles. Get qualified candidates within 48 hours.

$250one-time kickoff
10%on successful hire
Post a Role90-day money-back guarantee
Eoin McDonnellStaff Python Backend Engineer specializing in cloud-native APIs and microservices