- Deep interest in Data Science, Data Engineering, Machine Learning, Statistical Analysis, Big Data, etc. - Over a decade of experience in designing and developing robust, maintainable, resilient systems using Domain Driven Design, CQRS, Event Sourcing, Messaging, SOA, REST, etc. - Built a data analytics stack from scratch. Currently maintaining two Cassandra clusters, one Apache Spark Stand Alone cluster, one Zookeeper cluster, one Puppet installation, etc. - Currently developing a fraud analytics system with stream processing, distributed graph analysis, etc. using Cassandra, Spark, Spark Streaming, Scala, F#, C#, React, ASP.NET MVC, SQL Server, etc. Graph consists of millions of vertices. - Finishing up MSc in Software Engineering at Oxford University. - Completed over 15 MOOCs on data science and statistical analysis, all with distinction. - Processed 500GB+ of log data with Pig, setting up a 20 node Hadoop cluster on AWS. - Considerable experience in .NET technologies (F#, C#, ASP.NET MVC, Web Api, etc.), but also comfortable with R, Scala, JavaScript, Erlang, Haskell, etc. - Microsoft MVP since 2009. Awarded six times. - Moderator of www.asp.net, Coursera Community TA, Founder of ZeroMQ London. I'm fascinated by software design and architecture, and being a geek. I focus on investigating and using the latest architectural patterns, practices, and tools to reduce waste, and maximise team productivity and overall quality. Specialties: Data Science, Cassandra, Spark, R, CQRS, Event Sourcing, DDD, TDD, BDD, ASP.NET MVC, F#, C#

Big Data Engineer @ * Working with Spark, Amazon Web Services (AWS), Hadoop, EMR, Scala, etc. to build big data solutions ranging from implementing recommendation engines to exposing APIs in the cloud. From December 2015 to Present (1 month) London, United KingdomDirector @ I started working as a freelance developer and have gained a fair amount of success. I've completed projects from clients in the US, UK, Canada, Scandinavia and have racked up 61 perfect reviews on www.getacoder.com. I emphasize on Microsoft technologies and have completed over 70 projects using technologies like .Net 3.5 sp1, asp.net, wcf, wpf, silverlight, AJAX, SQL Server 2008, C#, VB.Net, C/C++, Java, x86 assembly, XNA, HLSL, Open XML SDK etc. From August 2004 to Present (11 years 5 months) Systems Architect @ * Helped in context mapping, business process analysis, integration architecture, and getting development teams on board with Domain Driven Design, CQRS, Event Sourcing, and systems thinking. * Facilitated domain modelling, and Event Storming sessions. * Advised on development of libraries and infrastructure to facilitate "pit of success" style development. From November 2015 to December 2015 (2 months) London, United KingdomTechnologist @ - Single-handedly implemented a soft real time data capture and stream analysis product using Spark, Cassandra, RabbitMQ, .NET and React for fraud analytics. - Set up and maintenance of Cassandra, Spark and Zookeeper clusters. Introduced Puppet + Puppet master. - Participated in the development of two line of business .NET web applications for consumer FX. - Drove the design for a hypermedia based RESTful API. - Introduced event sourcing in appropriate sub-systems. - Participated in the design and development of the company's single sign on (SSO) implementation. - Streamlined build and deployments mechanisms for projects worked on. - Introduced Zookeeper backed feature toggling for applications. - Open sourced a number of components developed including Res (Sql Event Store), Quicksilver (build & deployment), RestSharp.Portable.Hal (F# hypermedia client with C# wrapper API), Togglez (.NET feature toggle library for Zookeeper backed features). Open sourced puppet scripts for Cassandra, Spark, and Zookeeper. - Contributed to OSS projects used, including AKKA.NET and FAKE. From March 2014 to October 2015 (1 year 8 months) London, United KingdomCoursera Community TA @ Community TA for the following courses: * Statistical Inference * Regression Models * Practical Machine Learning From January 2015 to August 2015 (8 months) Head of Development @ Working as a temporary head of development on a few fronts: a) Designing and providing guidelines on a unified public API. This provides a long term hypermedia driven ReSTful goal, while allowing for existing ReST and SOAP apis to exist in a common ecosystem. It also caters to scenarios for transition away from legacy approaches, http authorisation via an authorisation server, etc. b) Kickstarted a team with a project to capture an auditable trail of data for workflows around price assessment of metals. The project aims to provide a unified system across a few publications like Metal Bulletin, AMM, etc. Guided the team around architecture, processes, and technologies. Helped set up virtualised environments via vagrant and puppet to enable smoother development and testing. Helped with testing approaches. c) Participated in review of a core system responsible for authorisation, subscription management, crm, product management, etc., and helped in starting to break them down into isolated services. d) Got a team switch to automating weeks of manual testing via excel sheets using .NET, Selenium, Coypu, F#, etc. to provide the exact same level of confidence in a matter of minutes. From October 2013 to February 2014 (5 months) London, United KingdomSenior Software Engineer @ Designing and building the next generation message oriented e-commerce backend for the largest online fashion retailer in the UK. From August 2012 to September 2013 (1 year 2 months) London, United KingdomIndependent Consultant (Senior Software Engineer) @ Delivering software solutions to the world leader in management consulting. Technologies used include Silverlight 5, ASP.NET, SQL Server, C#, MSpec, Git, psake, Windows Security, JavaScript etc. From November 2011 to August 2012 (10 months) Trainer @ Brought the development team up to speed on the day to day usage of Git - including some very useful little known advanced features that can increase productivity or help get out of tight scenarios quickly and efficiently. From June 2012 to June 2012 (1 month) London, United KingdomConsultant @ Provided a jump-start in DDD, CQRS, Event Sourcing and Event Driven Architecture, their implications, benefits and drawbacks, and how to get started in regards to implementation. From May 2012 to May 2012 (1 month) London, United KingdomConsultant @ Cubic were investigating various options for handling a large number of messages per second - something they would require to bring about the next generation of payment systems to London's public transportation system. I was brought on for a week to discuss different approaches and provide a proof of concept end to end solution. Within the week I was able to deliver a system using their existing tools that could handle a constant load that is 300% of their expected peak load at an average latency that was less than 10% of the allowed average latency. The solution includes messaging concepts, CQRS, Event Sourcing, SQL Server, SNMP, lock-free data structures etc. From March 2012 to March 2012 (1 month) Lead ASP.NET MVC Developer @ Introduced CQRS, Event Sourcing, BDD, TDD, MSpec, AutoTest.Net, Pair Programming, ASP.NET MVC 3, Massive, Knockout.js, Mercurial etc. and increased throughput considerably. From November 2010 to October 2011 (1 year) London, United KingdomConsultant @ ATG Media were looking into CQRS for their high performance bidding platform. I was brought in for a two day crash course on CQRS, Event Sourcing, application of Domain Driven Design - starting from concepts and benefits and ending up with a working prototype. That was their starting point in Event Driven Architecture and they have since benefited from the simplicity and flexibility by applying the concepts in their major project. From August 2011 to August 2011 (1 month) London, United KingdomSoftware Architect @ Researching and promoting best practices, latest technology, reusable patterns and architecture. Developing software on the Microsoft .Net stack. From August 2009 to October 2010 (1 year 3 months) Sr. .Net Developer @ BreezeTech is a multinational Bluetooth advertising company. My work here includes: 1. Adding MySQL stored procedures to generate complex reports and do data transformations. Some stored procedures are 100+ lines in length. 2. Adding support for converting videos to various codecs via FFMPEG through Asp.net, resizing images via the .Net imaging libraries and AJAXifying the user interface. 3. Creating customized batch scripts programmatically via Asp.net that run on a Unix server. 4. Adding features to a real time windows forms application to support two newer proprietary file formats. 5. Upgrading the system (Asp.net 2.0 & MySQL) to .Net 3.5 sp1. 6. Improving the software design, bug fixing and implementing all the necessary changes. From November 2008 to January 2009 (3 months) Lead .Net Developer @ Architected and developed the Remote Monitoring System (RMS) for Barmate. RMS is an integral part of the Barmate system, deployed in several world class resorts around the world. Features: 1.Architecture consisting of a rich client application, a PHP web service, a communication protocol, a third party SMS service and any third party SMTP service. Developed the architecture and first three parts from the ground up and carried out all integration. 2.Rich client application features real time monitoring and error reporting via SMS and/or email to administrators. Also carries out commands (like rebooting the machine) via SMS. It's built with WPF and C# and uses threading, mailing, ADO.Net, Interop and networking features of the .Net framework 3.5 sp1. This application has had two major and 15 minor releases. 3.PHP service holds SMS commands for polling by remote installations of rich client application. Avoids having dedicated servers at each installation reducing costs drastically. From November 2007 to January 2009 (1 year 3 months) Sr. .Net Developer @ 1. Helped in the development of an Asp.net 2.0, VB.Net and MS SQL Server 2005 application used by thousands of users. 2. Consumed various third party and government web services. 3. Created SQl Server 2005 stored procedures with 100+ lines of code. 4. Implemented a geocoding and routing library using C# and Google Maps. 5. Created Sql Server Reporting Services (SSRS) reports. 6. Helped in the adoption of .Net 3.5, 3.5 sp1, C# and better code design. From 2007 to 2009 (2 years) Developer Intern @ I worked as an intern at the Dhaka offshore development center of Code71 (then Asha-Technologies, LLC). During my time, I worked with Asp.net, Web Services and Ruby on Rails. I learned common practices like source control, scrum etc. From April 2005 to June 2005 (3 months)

MSc, Software Engineering @ University of Oxford From 2011 to 2016 BSc, Computer Science and Engineering @ Bangladesh University of Engineering and Technology From 2004 to 2009 CourseraCourseraedxedx Ashic Mahtab is skilled in: Cassandra, CQRS and Event Sourcing, DDD, Software Architecture, Architecture, Architectures, ZeroMQ, Continuous Integration, Messaging, C#, Test Driven Development, ASP.NET MVC, Design Patterns, .NET, WCF