Owned development, testing, deployment, and operational procedures for Java Virtual Machine-based Scala internal tools used to facilitate requests from government and law enforcement agencies in 190+ countries, as well as public facing data archival tools.● Led "deleted tweet preservation" project, delivered a 5-year backlogged feature in 6 months.● Improved internal tweet withholding tools, reducing SQL query times by up to 90%.● Mentored junior engineers and assisted in onboarding new hires.

Developed and operated the Java EE based HyperWallet payouts platform, facilitating payments in 190+ countries.● Built Java services, SQL migrations and various API integrations for 3000+ payment methods worldwide.● Led "China Supplemental Data" project, ensuring compliance with Chinese regulations.

Worked as software engineer for Simple Queue Service (SQS) within the Amazon Web Services business unit.● Project lead in developing automated load balancer health checks for AWS frontend & backends.● Led automated region expansion project, allowing SQS instances to be quickly created in new AWS regions.● Contributed JVM optimizations that cut the p99 latency of Java-based microservices by 80%.● Developed various internal operational tools and participated in on-call rotation, addressing incidents and customer support requests.Amazon Simple Queue Service (SQS) is a fully managed message queuing service that makes it easy to decouple and scale microservices, distributed systems, and serverless applications. Building applications from individual components that each perform a discrete function improves scalability and reliability, and is best practice design for modern applications. SQS makes it simple and cost-effective to decouple and coordinate the components of a cloud application. Using SQS, you can send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be always available.

Led the Vodafone integration project in Spain, enabling 1.3 million subscribers to access HBO content.● Coordinated a cross-company effort between companies and business units in Hungary, Sweden, Spain and the United States; to enable subscriber access on over a dozen smart TV platforms.● Developed back office processing, analytics, and integration, as well as content metadata processing tools.Responsible for development, testing and deployment of various back office processing, analytics and integration tools, mainly in Java on the Spring Framework. Extensively worked with Amazon AWS technologies such as EC2, Redshift, SQS; as well as the Apache Camel enterprise integration framework."It's Not TV. It's HBO."

Worked full-stack with Handelsbanken's new capital accounts system based on Java EE backend, IBM DB2 database and JSP/HTML/JQuery based front end, which handles investment accounts and buying/selling of investment vehicles such as stocks, ETFs, options and futures.● Worked on a securities trading system, integrated legacy COBOL code into a Java EE-based backend.● Participated in technical interviewing processes and screened several candidates that got promoted.

Started my own software consulting agency that later got acquired by a multi-national consultancy firm.Led development of a portable enterprise car leasing platform and a GPS vehicle tracking solution.Developed an iOS application for a live asset tracking system and a web-based administrative console.Lead developer for a mobile Customer Acquisition & Retention Solution for an e-commerce platform.Developed an NFC Contactless Card penetration testing application and an RF-powered passive audiotransmitter.Reverse engineered machine code from a diesel engine electronic control unit (ECU) to derive flowcharts for emission control operations.

Co-founder of the first mobile loyalty card application on both Android and iOS platforms.Developed the Java and Spring Boot-based backend service, as well as Android and iOS applications.Designed, developed and built the first batch of hardware devices on bare metal ARM Cortex M3architecture, to connect to client business POS systems.Design of NXP LPC1788 based embedded hardware platform with external DDR SDRAM memory - Complete ground-up hardware and software development on FreeRTOS platform- TFT LCD driver and user interface development- NFC transceiver and PCB trace antenna implementation for communication with Android phones- Complete 6 layer PCB drawing and routing with poured vias and inline impedance matching

I worked in design of “ACT” coagulation analyzer, from idea to product with hardware development on TI Stellaris ARM platform and firmware on FreeRTOS real time operating system.- Design of Texas Instruments Stellaris based embedded hardware platform- Touch screen user interface, I2C/SPI sensor and servo control input-output for operating system- Implementation of Dynamic Power Management for running the device efficiently on battery power- Bluetooth transceiver implementation for data transfer to PC for storage and further analysis- 4 layer logic board and power board PCBs drawing

MATLAB - Simulink, GNU/Linux and shell scripting tutoring for engineering students (Part time)