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Cosmin Iordache

@cosminiordache

Tech Lead at Yields.io designing event-sourced microservices for banks and moving notebook runtimes from Spark/YARN to Kubernetes.

Romania

Message

What I'm looking for

I’m seeking a Tech Lead or Senior Software Engineer role focused on distributed backend systems, microservices, cloud-native data platforms, and event-driven or event-sourced architecture. I’m looking for collaborative environments and new challenges.

At Yields.io, I moved from Scala backend development to technical leadership on a model risk management platform used by banks. I design APIs and microservices with Domain-Driven Design, Event Sourcing and CQRS, and helped move notebook runtimes from Spark/YARN to Kubernetes pods.

I also work on releases, platform security and bank integrations, including a service connecting to a bank's user directory. I’ve deployed internal LLMs with KServe and created DemoCreator, Claude Code skills used to produce narrated product-demo videos.

Experience

Work history, roles, and key accomplishments

Current

Tech Lead

Current

Yields.io

Jan 2021 - Present (5 years 9 months)

Leading design and development of APIs and microservices using Domain-Driven Design with Event Sourcing and CQRS. Managing team leadership, release management, platform security, and integrations for banks.

Scala Akka Pekko Akka HTTP Cats Slick Spark Hudi Hive Hadoop Yarn PostgreSQL Python fastAPI Docker Kubernetes Helm Keycloak Vault Prometheus GCP Databricks Delta Tracking Kubeflow KServe AWS Jupyter Claude Code Sbt

Scala Software Developer

Yields.io

Sep 2018 - Jan 2021 (2 years 4 months)

Implemented, tested, and deployed Scala services using Akka, Event Sourcing, and CQRS. Contributed significantly to the core registry service and designed event-sourced domain models.

Scala Akka Akka HTTP Spark Yarn Slick Apache Hudi PostgreSQL Sbt Python Docker Kubernetes Helm AWS Selenium Jupyter Keycloak Kubeflow

Software Developer / Java EE Programmer

European Commission

Feb 2018 - Sep 2018 (7 months)

Implemented and maintained Java-based middleware software and web applications. Reviewed functional specifications and performed unit testing and rollout.

Java 8 Java EE 6 SOAP JDBC JPA Hibernate Maven IntelliJ IDEA Web Logic

Java Team Leader

Luxoft

Dec 2016 - Feb 2018 (1 year 2 months)

Led a team developing a client-onboarding platform, designing solutions and supervising on-time delivery. Performed code reviews and root cause analysis.

Java 8 Spring Boot Spring Data Hibernate JPA JDBC REST Mockito Gradle Git IntelliJ IDEA

Java EE Programmer

UNIQA Asigurări SA

Jan 2015 - Nov 2016 (1 year 10 months)

Reviewed functional specifications, analyzed impact, and built technical designs. Developed, maintained, and tested web applications and designed databases.

Java 7 Java EE 6 Vaadin JDBC JPA Hibernate Maven Eclipse JBoss IBM DB2

Programmer

Set Mobile

Jun 2014 - Dec 2014 (6 months)

Designed and implemented ETL processes for water meter readings using Big Data technologies. Developed continuous integration architecture and fixes for a sales force automation system.

Apache Camel Hadoop Oozie Pig Ambari CentOS WebRatio Maven SonarQube Nexus Bitbucket Android SDK SQLite Hibernate JSP jQuery Tomcat

Administrator iSeries

Qualysoft

Jan 2010 - Jun 2014 (4 years 5 months)

Provided technical resolutions and client support for core business software. Managed system availability, batch jobs, security, and capacity planning on IBM iSeries.

PDM CL Programming COBOL ICluster BRMS Navigator For I SQL400

Administrator iSeries

ING Asigurări de Viață

Sep 2007 - Dec 2009 (2 years 3 months)

Provided 3rd-line support for core life insurance application on iSeries midrange computers. Managed system availability, software configuration, and security.

PDM CL Programming COBOL Navigator For I SQL400

Analyst Programmer

ING Asigurări de Viață

Sep 2006 - Sep 2007 (1 year)

Produced technical designs, programmed and tested iSeries-based applications, and provided support for the LIFE400 application. Reviewed design and implementation quality.

PDM CL Programming COBOL Navigator For I SQL400