Fatih (M. sc.) A.

Senior Software Engineer

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Turkey

Experience

Apr 2024 - Present
1 year 9 months

Senior Software Engineer

ACA Group

  • Designed and delivered a compliance-grade archival system processing 200M+ EML/PST files with AWS Batch, Lambda
  • Built audit log/event-sourcing system (10M+ daily events) using SNS, Kinesis and S3 (Iceberg tables for analytics)
  • Implemented Java 17 / Spring Boot microservices for ingestion, transformation, and reporting of regulated messages
  • Ensured financial-style reporting accuracy with status/stats/pending tables, handling late, duplicate, and retry events across boundaries
  • Automated infrastructure with AWS CDK and implemented cost-efficient partitioning strategies for Athena queries
  • Collaborated daily in agile team of senior engineers, providing design reviews, knowledge sharing, and mentoring
Feb 2023 - Apr 2024
1 year 3 months

Principal Software Engineer

Optiva

  • Designed scheduled pods to extract data from application tables, stage it, and aggregate it into a dedicated reporting server for accurate, timely client reports
  • Implemented logging sidecars for all pods, standardizing observability and troubleshooting across the cluster
  • Leading the development and delivery of big epics and complex integration projects
  • Collaborating with client-side product experts during requirements analysis
  • Presenting new features directly to customers, gathering feedback to enhance solutions
  • Supporting new teammates through onboarding and mentoring junior and mid-level engineers
Jan 2019 - Feb 2023
4 years 2 months
Turkey

Senior Software Engineer

Sqills

  • Design and develop features for SaaS product S3-Passenger
  • Refactoring code base
  • Researching new libraries and frameworks and integrate them into product
  • Participating to kick-off and discussion meetings for features that will be developed
  • Following BDD practices using Cucumber, writing feature files and step definitions
  • Proposing and implementing performance improvement tasks
  • Helping junior developers and organizing knowledge transfer sessions
Nov 2017 - Dec 2018
1 year 2 months
Turkey

Senior Software Engineer

i2i Systems

  • Design and development of the module that handles renewal process of recurrent products by running scheduled jobs and messaging via Kafka
  • Development of libraries for recurrent payment notifications, calculating prices, discounts and taxations of products based on recurrent tariffs
  • Guiding junior developers and test teams
Dec 2015 - Nov 2017
2 years
Turkey

Software Engineer

Allianz Turkey

  • Development of Java EE applications and PL/SQL packages for claim screens
  • Proposing solutions for production defects and delivering bug fixes
Jan 2013 - Nov 2015
2 years 11 months
Turkey

Research and Development Engineer

TÜBİTAK

  • Researched and implemented machine learning algorithms in the area of speech recognition and natural language processing
  • Developed command line applications for project requirements in Java
  • Integrated state of the art algorithms to existing system and increasing accuracy and performance

Summary

Senior Software Engineer with 12+ years of experience building Java/Spring microservices, financial-style reporting systems, and compliance-critical pipelines. Skilled in Java 17, Spring Boot 3, MySQL 8, Hibernate, Apache Kafka, AWS (S3, RDS, Lambda, Batch, Glue, CDK), and Kubernetes. Proven success delivering accurate, reliable, and large-scale reporting workflows in finance, telecom, and compliance domains. Strong advocate of clean architecture, resilient services, and effective collaboration in agile, distributed teams.

Languages

Turkish
Native
English
Advanced

Education

Oct 2012 - Jun 2015

Istanbul Technical University

Master of Science · Telecommunication Engineering · İstanbul, Turkey · 3.38/4.0

Oct 2008 - Jun 2012

Istanbul Technical University

Bachelor of Science · Telecommunication Engineering · İstanbul, Turkey · 3.66/4.0

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