Meliksah S.

About Me

Senior Software Engineer with over 9 years of expertise in software development and architecture, specializing in cloud platforms and container technologies. Skilled in Java, Python, and AWS, with a proven history of enhancing system performance and reliability through innovative solutions. Committed to driving efficiency and scalability in high-demand environments, with a focus on service continuity and security.

Frontend

Backend

Database

DevOps

Docker AWS Jenkins GCP Kubernetes Cloud Migration Terraform AWS CDK Google Cloud Spanner Amazon Web Services (AWS) DevOps

Workflow

Other

Work history

Lululemon
SENIOR SOFTWARE DEVELOPMENT ENGINEER
2024 - 2025 (1 year)
Remote
  • Transitioned database generation to CI/CD, enhancing reliability and reducing errors.

  • Managed over 20 microservices, ensuring seamless operations and timely updates.

  • Integrated Datadog and Splunk for improved system monitoring and incident response.

PNC Bank
SENIOR SOFTWARE DEVELOPMENT ENGINEER
2023 - 2024 (1 year)
Remote
  • Led custom framework development, cut service onboarding time by 87.5%.

  • Migrated legacy apps to AWS, reducing document generation time by 73% and supporting 10,000 docs/sec.

  • Architected fault-tolerant system, enhancing digital banking platform reliability. Implemented automated monitoring, disaster recovery, and load balancing strategies.

Amazon
SENIOR SOFTWARE DEVELOPMENT ENGINEER
2021 - 2023 (2 years)
Remote
  • Led design and development of authentication framework, streamlining Alexa service integration.

  • Managed tier-1 services, enabling seamless global payment method integration for Amazon customers.

  • Engineered serverless solution for GDPR compliance, achieving 500,000 payment deletions per minute.

BilgeAdam Teknoloji
SENIOR SOFTWARE DEVELOPMENT ENGINEER
2020 - 2021 (1 year)
Remote
  • Led microservice architecture design for Vodafone's Customer Support app, enhancing system reliability.

  • Developed test-driven, containerized app reducing downtime to 0.01%, ensuring seamless experience.

  • Implemented blue/green deployments, enabling zero downtime updates with robust health checks.

Optiva Solutions
SENIOR SOFTWARE DEVELOPMENT ENGINEER
2018 - 2020 (2 years)
Remote

Enhanced app performance by 55% using auto-scaling, Kubernetes, Docker.

Geotab
SENIOR SOFTWARE DEVELOPMENT ENGINEER
2017 - 2018 (1 year)
Remote
  • Led mobile-first app design with RESTful APIs, boosting software availability by 40%.

  • Migrated legacy systems to 12 microservices, enhancing failover strategies for 7 companies.

  • Developed SaaS strategy on AWS, reducing customer operation costs by 40%.

Amadeus
SOFTWARE ENGINEER
2017 - 2017
Remote
  • Led migration from PL/SQL to Java, enhancing airline loyalty software.

  • Software adopted by 24 airlines, successfully deployed.

Eteration
SOFTWARE ENGINEER
2015 - 2017 (2 years)
Remote
  • Developed full-stack solutions for banking, enhancing process efficiency and adopting new tech.

  • Spearheaded development for banking. Architected BBVA's loyalty program, enhancing enterprise engagement.

  • Developed a recommendation engine for Fizy using Collaborative Filtering for 20M users.

Showcase

Software Engineer - Amazon Payment Methods
Software Engineer - Amazon Payment Methods
  • Amazon Pay solution enhances shopper engagement, brand visibility, and security for millions of Amazon customers.

  • The solution is a core payment service handling 100.000 payments per minute.

  • The project utilizes technologies including Java, Typescript, Microservices, Docker, AWS CDK, Lambda, Step Functions, DynamoDB, SQS, SNS, IAM, VPC, Fargate, ECS, Application Load Balancer, API Gateway, HTML, SASS, CSS, Javascript.

Software Engineer - Amazon Alexa Secure AI Foundations
Software Engineer - Amazon Alexa Secure AI Foundations
  • Stability AI is an open-source AI company focused on developing cutting-edge technologies.

  • Amazon SageMaker enables AI model training on a large scale with GPU/Trainium chips, reducing training time and cost by 58%.

  • Stability AI develops AI tools for Machine Learning Engineers and Data Scientists, leveraging Java, Typescript, Microservices, Docker, and AWS services.

Software Architect - Amadeus Loyalty Management System
Software Architect - Amadeus Loyalty Management System
  • Amadeus Loyalty Management enables airlines to launch unlimited rule-based promotions to increase member engagement.

  • The solution captures and stores transaction data from flights, partner activities, and website logins, providing valuable intelligence for program development.

  • The software was migrated using new tech stacks, architected a new infrastructure from scratch, and deployed across 24 airline companies.

Software Architect - Optiva (BSS, CPS, URCS)
Software Architect - Optiva (BSS, CPS, URCS)
  • Optiva provides business support systems and operation support system software and services to the telecommunications industry.

  • Their software solutions leverage next-generation technologies to help clients grow and improve performance.

  • Optiva collaborated with product managers to translate client needs into technical requirements and participated in architectural decisions for software development.

Software Architect - Turkcel Music (Fizy)
Software Architect - Turkcel Music (Fizy)
  • Fizy app provides access to over 35 million songs and video clips across multiple devices.

  • The app utilizes a collaborative filtering algorithm and 20 nodes for deployment.

  • The solution is designed for Turkey, Germany, Ukraine, and Belarus with over 20 million active users.

Education

Education
ADVANCED ARCHITECTING ON AWS
Amazon Web Services (AWS)
2022 - Present (3 years)
Education
ARCHITECTING ON AWS
Amazon Web Services (AWS)
2022 - Present (3 years)
Education
BACHELOR OF ENGINEERING IN COMPUTER ENGINEERING
Yeditepe University
2011 - 2015 (4 years)