Satyajit Ranjeev

http://satran.in | s@ranjeev.in

Talks

Complexities of Micro Services and Event Sourcing at MicroXchg 2017 | https://www.infoq.com/presentations/microservices-event-sourcing

Work

Senior Software Engineer

OptioPay | Berlin, Germany | 2015 - Current

Building a payment gateway using micro-service architecture using Go and Kafka

• Currently building a Recommender system using Machine Learning
• Help improve conversion of our product using Statistical methods
• Cluster management using Docker, CoreOS and fleet
• Architect micro services based on event sourcing
• Worked on accounting/booking system
• Developed a HTTP Proxy through Kafka
• Contributed to Kafka driver written in Go
• Architect snapshots in event sourcing using PostgreSQL

Technologies: Go Kafka PostgreSQL CoreOS Fleet

Software Developer

Studio March | Pune, India | 2014

Built the backend for iPhone App Endless in Go. Endless recommends random articles from Wikipedia based on your likes and dislikes

• Architect and built the backend service in Go
• Implemented a recommendation engine based on Naive Bayes

Technologies: Go PostgreSQL

Engineering Lead

MQuotient | Pune, India | 2011 - 2014

Led a team of 12 to build an Intelligent Character Recognition System

• Improve prediction of words using various Statistical methods, mainly Logistic Regression and Markov processes.
• Built user interface for manual correction of incorrect recognition using JavaScript, Backbone
• Architect a distributed flow based processing using Python and RabbitMQ
• Introduced Scrum to the team

Technologies: C Python RabbitMQ MongoDB Redis JavaScript

Head of IT

Anglo Singapore International School | Bangkok, Thailand | 2008 - 2011

Led a team of 3 to migrate manual work-flow using in-house developed software and services.

• Built and maintained fault tolerant Linux based servers for file sharing, application deployment, network management and firewalls
• Architect and developed an ERP solution to manage students and staff
• Built an online book platform for the school
• Managed hosting of website

Technologies: Python MySQL Php CentOS Samba iptables RAID

Linux Consultant

SQL Star | Chennai, India | 2007 - 2008

Evangelized RedHat Enterprise Linux and trained candidates for RHCE.

• Managed and administered RedHat Enterprise Servers
• Taught a course for RedHat Certified Engineer Exam

Technologies: RedHat Enterprise Linux Perl Xen

Education

Master in Statistics	Madras Christian College	2004 - 2006
Bachelors in Statistics	Madras Christian College	2001 - 2004

Projects

kafka (Go library)	https://github.com/optiopay/kafka
sqlgen (Go postgres generator)	https://github.com/optiopay/sqlgen
goimp (Go dependency)	https://github.com/satran/goimp
edi (editor)	https://github.com/satran/edi
BK Tree (C library)	https://bitbucket.org/ranjeev/bktree
jsonpatch (Go library)	https://github.com/optiopay/jsonpatch