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Satyanarayana Koneru, Distributed Systems Developer in Newcastle, New South Wales, Australia
Satyanarayana Koneru

Distributed Systems Developer in Newcastle, New South Wales, Australia

Member since May 22, 2019
Satyanarayana is a senior software engineer with over eight years of experience working in various technology stacks and knowledge domains ranging from big-scale back-end systems to Android native apps. He is eager to take on new challenges and has done so with teams of all sizes and compositions.
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Portfolio

Experience

Location

Newcastle, New South Wales, Australia

Availability

Part-time

Preferred Environment

TypeScript, C++, VS Code, MacOS, Go

The most amazing...

...project I've worked on was a distributed betting engine for Global Tote, a parimutuel betting server that scales horizontally and accepts millions of bets.

Employment

  • Senior Software Engineer

    2017 - PRESENT
    The Global Tote, Topbetta (TBH)
    • Designed and developed the core modules of a betting engine such as bet placement, price pool calculation, and more in a parimutuel betting server which can scale horizontally.
    • Designed the interactions of the core modules of the server with RabbitMQ message brokers, Redis Memcache, distributed mutexes, and a Percona relational database.
    • Optimized the bet acceptance performance by reducing the IO overhead and reducing the number of critical sections in the code created by the distributed mutexes.
    • Designed and developed an inter-Tote protocol server called ITSP server which can communicate between Tote servers all around the world in real time.
    • Designed and developed new exotic bet types like straight8, trifecta, first four, and exacta. This involved the handling of all the requirements like jackpot money, horse scratchings, flexi bets, calculating pool dividends and payouts for winning bets.
    • Debugged critical production issues and looked after the whole Global Tote infrastructure which has servers located at different locations around the world.
    Technologies: Amazon Web Services (AWS), Inversion of Control, InversifyJS, Amazon Route 53, AWS Push Notification Service (AWS SNS), AWS Step Functions, Serverless, JSON Web Tokens (JWT), Authorization, Authentication, OAuth 2, Amazon Cognito User Pools, Amazon Cognito, Docker, AWS, GraphQL, Laravel, Locust, GDB, Valgrind, AWS Cloud Development Kit (CDK), Amazon SQS, Amazon DynamoDB, AWS ALB, Amazon ECR (Amazon Elastic Container Registry), Amazon API Gateway, Amazon ECS (Amazon Elastic Container Service), AWS Fargate, Event Sourcing, CQRS, TypeORM, NestJS, TypeScript, Google Test, RabbitMQ, Percona, Redis, Boost, C++, Service, Distributed Systems

  • Technical Lead

    2013 - 2017
    Samsung Research
    • Developed an application stack for voice over LTE (VoLTE) and rich communication services (RCS) on Samsung devices deployed across the world.
    • Worked on and modified Android framework modules like a telephony manager, connectivity manager, RIL, and more to suit the requirements of Samsung mobile devices.
    • Worked on Android NDK, the UI development of the messaging app, and Orange RCS utility app.
    • Constructed the RCS Presence server for providing presence information of RCS capable endpoints with in enterprises.
    • Built an instrumentation test framework from scratch for Samsung Mobile Android RCS application.
    Technologies: Inversion of Control, GDB, Valgrind, Rich Communication Services (RCS), Multimedia, SIP, Tizen, C++, Java, Android

  • Senior Software Engineer

    2012 - 2012
    MetaObject Infotech
    • Designed and developed back-end REST APIs in the MVC PHP YII framework for SCADA monitoring and control server for water supply networks.
    • Composed algorithms for digital pulse counting, GPRS connectivity, GSM Messaging.
    • Designed the whole software memory architecture for RAM and Flash storage of RTCU-based embedded devices of Logic IO deployed at remote locations.
    • Developed a kernel driver for PPP protocol to communicate with any kind of interface other than standard interfaces like RFCOMM, ethernet, and more.
    Technologies: Valgrind, C, C++, Yii, PHP

  • Software Engineer

    2009 - 2012
    Sonus Networks
    • Designed and developed features like selective call rejection, cancel call waiting, selective call acceptance, and more for the Sonus VoIP server.
    • Designed and commercialized a multithreaded media capture tool to capture media flowing through the Sonus VoIP server.
    • Added support for HD voice codecs like G722.1, Microsoft RT Audio in the Sonus VoIP server.
    • Programmed a critical live software upgrade process to upgrade servers in client networks without affecting stable calls on the VoIP servers.
    • Developed an automation test suite to test features of the Sonus VoIP servers.
    Technologies: Valgrind, VoIP, SIP, C, C++

Experience

  • The Global Tote

    The Global Tote is a high performance distributed B2B totalizer betting server hosting Australian and international horse and greyhound races.

  • ITSP

    ITSP (Inter Tote System Protocol) is the language that tote company machines use to speak to each other. It allows multiple totalizer servers to communicate with each other in real time in terms of placing bets, transmitting pool totals, and more.

  • Samsung Presence Server

    RCS Presence server provides the functionality to manage the presence information such as availability, capabilities, willingness to communicate, and more of RCS capable endpoints in an enterprise.

  • Samsung VoLTE

    Samsung VoLTE is an application stack used in Samsung Android devices to make voice and video calls over LTE(4G).

  • NBS MCT, Sonus Networks

    NBS MCT is a media-capturing tool developed to capture the media flowing in multiple calls on NBS VoIP server.

  • PPP Kernel Virtual Driver

    PPP Kernel Virtual driver enables PPP protocol to talk to a virtual interface other than the standard interfaces like RFCOMM, ethernet, and more.

Skills

  • Languages

    C++, Go, TypeScript, C++14, C++11, Java, C, JavaScript 6, GraphQL, PHP, Python

  • Paradigms

    Back-end Architecture, Microservices, CQRS, Event Sourcing, Inversion of Control, Agile, Waterfall Development, Microservices Architecture, Dependency Injection

  • Platforms

    AWS Lambda, AWS ALB, Docker, Amazon Web Services (AWS), Android, Linux, Percona, Unix, Solaris, Apache Kafka, MacOS, Tizen, Blockchain, Blockchain Platforms, Kubernetes

  • Storage

    Amazon DynamoDB, MySQL, Redis Cache, NoSQL, Redis, Microsoft SQL Server, Amazon S3 (AWS S3), InfluxDB

  • Other

    Serverless, SIP, Session Initiation Protocol (SIP), SIP Proxies, VoIP Administration, Amazon API Gateway, Back-end Development, Back-end Performance, RESTful Microservices, TypeORM, AWS Cloud Development Kit (CDK), AWS, Amazon Cognito User Pools, Authentication, Authorization, Amazon Route 53, Data Structures, Algorithms, Distributed Systems, VoIP, SIP Protocol, Rich Communication Services (RCS), P2P, LTE, IPv4, IPv6, TCP, UDP, Service, Multimedia, IoT Protocols, Collectd, StatsD, Customized Blockchains, Consensus Algorithms, APIs, Protocol Buffers, Computer Science

  • Frameworks

    NestJS, Locust, OAuth 2, JSON Web Tokens (JWT), Boost, Android SDK, Google Test, Gin-Gonic, Yii, Laravel, Yii 2, AWS HA

  • Libraries/APIs

    InversifyJS, Standard Template Library (STL), Protobuf, Node.js, REST APIs

  • Tools

    AWS Fargate, Amazon ECS (Amazon Elastic Container Service), Amazon ECR (Amazon Elastic Container Registry), Valgrind, GDB, Amazon Cognito, AWS Push Notification Service (AWS SNS), Android NDK, RabbitMQ, IntelliJ IDEA, Android Studio, VS Code, Amazon SQS, Google Kubernetes Engine (GKE), Git, AWS Step Functions, Grafana, NGINX, Nagios, Phabricator, Jenkins, Graphene

Education

  • Bachelor of Technology Degree in Computer Science
    2005 - 2009
    International Institute of Information Technology Hyderabad (IIIT-H) - Hyderabad, Telangana, India

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