Gábor Koródi

Java Developer, Consultant

TEKsystems (Chewy)

2026, Boston, MA

IImproved orchestration services for Chewy Pharmacy using Java 21 and Spring Boot, simplifying distributed workflow execution and reducing operational complexity.

Optimized PostgreSQL queries, reducing API response times by 17% and improving backend performance across multiple pharmacy services.

Designed GraphQL queries that simplified data retrieval across distributed microservices and reduced service-to-service calls by 25%.

- AWS (RDS (Postgres), DynamoDB, ECR/ECS)
- Java 17/21 (Spring Boot JPA, OpenAPI, Okta)

Senior Consultant

Valtech (Discover, US Foods, Country Financial)

2023-2025, Remote

Designed and delivered backend services and cloud integration platforms for insurance, logistics, and financial services clients.

Built monitoring service with FastAPI for Azure Service Bus that reduced production issue response time from 12 hours to minutes through automated Azure Monitor alerting at Country Financial.

Built Kafka-based ingestion pipelines with MongoDB persistence layer, enabling scalable integration between data engineering and data science platforms at US Foods. Automated previous paper-based processing to near real-time, for warehouse operations.

Developed a new cloud-based Java/Spring MVC REST API supporting third-party external account validation with SQLServer persistence layer for Discover. Allowed zero-downtime migration of the service from one provider to another.

- AWS (ECS/ECR, RDS (MySQL))
- Azure (Service Bus, Key Vault, Spring Apps / Container Apps)
- Java 17 (Spring Boot JPA, JMS, REST)
- MongoDB (NoSQL), Postgres (SQL)
- Python (FastAPI)

Java Developer, Consultant

S44 (Electrify America)

2021-2022, Remote

Translated complex business requirements into a flexible, parameterized Java library supporting international (CA and US) billing across time- and energy-based tariff constructs.

Developed a configuration platform with Directus service, that enabled business users to manage vendor-specific pricing models without developer involvement.

Contributed to a cloud-based Java Spring Boot microservices platform for Electrify America's charging station management, billing, customer onboarding, and OEM integration workflows.

- AWS (ECS/ECR, RDS (MySQL))
- Java 11 (Spring Data JDBC, Web MVC, Cloud OpenFeign)
- Python (FastAPI)
- Directus (Headless CMS)

Sr. Software Engineer

Bamboo Health

2020-2021,Remote

Developed real-time healthcare ingestion services processing high-volume patient events for Bamboo Health's Data Factory platform.

Improved infrastructure, monitoring, and performance for microservices handling patient-related data, with a focus on reliability, compliance, and data governance.

Collaborated with integration and data analytics teams to make healthcare data more usable across downstream systems, including maintaining ICD code refresh processes.

Built an AWS serverless messaging service that supported real-time communication to primary care physicians, with reporting and auditing backed by DynamoDB.

- AWS (API Gateway, Lambda, SNS, DynamoDB)
Athena, Redshift, Aurora, Elasticsearch - Java 8 / Kotlin, Spring (Data/JDBC, MVC, REST, OpenFeign)
- Grafana, Prometheus

Sr. Software Engineer

Harvard Medical School Dept. of Biomedical Informatics

2015-2020, Boston, MA

Built cloud-based biomedical data platforms enabling researchers to analyze large-scale genomic and clinical datasets.

Integrated a Java/Tomcat web application with multiple authentication providers, expanding research platform security and contributing to HIPAA certification efforts.

Architected the separation of a monolithic application into microservices and developed a Docker-based stack for scientific datastore workflows.

Co-developed RESTful APIs that enabled access to multiple biomedical data sources. Google Scholar Profile

- AWS (Docker on EC2, RDS (MySQL))
- Java 8/11 (JDBC, Jetty/Tomcat/Wildfly)
- Jupyter (Notebook/Hub)
- Python/R

Chief Technologist

Story + Structure

2015, Boston, MA

Architected and delivered custom web applications for multiple clients, translating business requirements into production-ready software.

Consulted with clients on best-of-breed solutions and participated in UI/UX design sessions and requirements gathering, that preceded the coding process.

Wrote Python and PHP-based web applications. Architected and developed proof-of-concept solutions that were further enhanced into production systems. Coded backend business logic, integrating with various databases. Implemented frontend code based on Human-Centered Design approach requirements.

Clearly communicated solution benefits and risks while ensuring code stability and providing training and support.

PHP, WordPress, Laravel
Python, Django
MySQL

Middleware Developer

DTCC (was Omgeo)

2013-2015, Boston, MA

Led middleware development for enterprise financial messaging systems (WebSphere Message Broker and WebSphere MQ) supporting high-volume institutional trading workflows.

Designed a common data structure interface to enable mapping library usage across technology teams, speeding up time-to-market capabilities.

Managed pub/sub infrastructure and extended transformation capabilities to include an increasing number of asset classes.

WebSphere MQ, WebSphere Message Broker
Java EE 7, Tomcat
XML, XSLT, JSON, FIX

Software Engineer, Middleware Developer

State Street Corporation

2002-2013, Boston, MA
London, UK (2005-2006)

Delivered mission-critical middleware, supporting institutional trading and settlement systems used across global financial markets for State Street's Global Markets unit.

Specialized in data transformation, routing, messaging, and pub/sub services for SWIFT, FIX, and XML data. Supported both real-time messaging and batch file-transfer workflows.

Completed a one-year assignment establishing a data transfer hub in the EMEA region, standardizing middleware practices and supporting regional IT teams.

Served on the global support team for middleware application technologies, including real-time messaging, file transfer, application integration, WMQ, WMB, SFTP, and Connect:Direct/NDM.

Developed, deployed, and maintained middleware application for the company's Wealth Management and Private Client platform.

WebSphere MQ, WebSphere Message Broker
Java EE 7, Tomcat
XML, XSLT, JSON, FIX/SWIFT