In few words I am -
Full time Software Engineer, SRE. Hobbyist Photographer. Loves to solves problems. Egar to learn new Technologies and plays with them. Loves to read, travel around and took photographs.
Started learning coding in 2011 with C. Since then never stopped learning and trying. Writing codes Full Time as Software Engineer from 2014. In those times writing in Golang from 2015. Sometimes i do use other languages like C, C++, Java and Javascript. Instead of HTTP REST I like to work with gRPC now. I Try to design my APIs in gRPC where I can. Its robust performance and scalability amuses me. Years ago I worked with Grails, Laravel 5 and Spring 3 frameworks. Not in touch with these for a long time though, because I work with awesome Go now. :)
I have used MySQL/MariaDB, Postgres; But really really in love with
ElasticSearch. Recently learned about Presto, It is fun.
Likes to communicate data event between services with Kafka stream or SQS. Gives me power to have scalable and reliable services.
I love to deploy things in Kubernetes by containerizing them with docker. Monitoring them with Prometheus and Grafana. Load balanced with HAProxy. For kubernetes i wrote a Ingress Controller backed by HAProxy called voyager while working for AppsCode. I Love to play with Kubernetes, Provision kube clusters in AWS, GCP or DO.
I believe in testing, I try my best to cover things under unit tests, e2e tests and integration tests. I like to use CI/CD pipeline with Jenkins.
I like to have Scaling and Performance in mind. Love HAProxy to do some heavy lifting for me.
I also do love Open Sourcing. I am contributor to Kubernetes, gRPC and some other Open Source projects. I would still love to contribute more in the community.
I don’t Believe in Magic.
BSc in Information and Communication Technology, 2014
Mawlana Bhashani Science and Technology University, Bangladesh.
Site Reliability Engineer
Booking.com, Amsterdam, Netherlands.
Jul 2019 – Present Full TimeGo Kubernetes Docker AWS GCP Bare Metal Grafana Prometheus PuppetBooking.com is a travel fare aggregator website and travel metasearch engine for lodging reservations. Headquartered in Amsterdam.
The site has 28,425,726 listings in 148,470 destinations in 228 countries and territories worldwide. Each day more than 1,550,000 room nights are reserved on the site. The site is available in 43 languages.- Building, administering and ensuring reliability of a cloud native ecosystem
- Maintaining Service SLO and SLA for hybrid Kuberentes cluster
- Building tools to improve monitoring and visibility around the hybrid kubernetes cluster
- Automating server toils and improves team productivity
Senior Software Engineer, Backend
Nov 2017 – Jun 2019 Full TimeGo gRPC MySQL PgSql PrestoGrab is more than just the leading ride-hailing and mobile payments app in Southeast Asia. Grab use data and technology to improve everything from transportation to payments and logistics across a region of more than 620 million people. Working with governments, drivers, passengers, and charities, Grab aim to unlock the true potential of the region by solving problems that hinder progress.
- Designed, Architect and Build several micro services to divide and scale workloads
- Worked as an team SRE to supports team’s scalable cloud infrastructure
- Actively participated in OnCall rotation and Engineering Postmortems process
- Work with multiple teams and PMs to collaborate with Business requirements and design software systems
- Participated in Design and Implementation process for scalable Backend services for Core Supply Sapping team
- Support and scale systems to handle millions of request
- Support team by actively getting engaged with making improvements for monitoring and alert systems
Software Engineer
AppsCode Ltd, Bangladesh. (Former The TigerWorks Pvt. Ltd)
Apr 2015 – Nov 2017 Full TimeGo Java Kubernetes gRPC ElasticSearch PgSqlSubsidiary company of AppsCode Inc. USA. Previously known as The TigerWorks Pvt. Ltd. in Bangladesh. Company Works with a goal to make smother developing, testing, deploying and monitoring containerized application. One integrated platform for software development aspects.- Joined the company as #3 employee
- Worked as a DevOps and lead the team to maintain scalable infrastructures in aws, gce
- Leading multiple teams to design and implement core features
- Design and Implemented gRPC based API server from scratch
- Worked to build with kubernetes controllers tools to utilize kubernetes services
- Implemented multi tenant auth scheme in core services
- Worked to build a multi platform artifact repository for docker, maven, npm etc
- Contributed and worked with many open source projects including Kubernetes, Jenkins, Docker, GlusterFS, Phabricator
Systems Engineering Consultant
Aug 2017 – Oct 2017 ConsultantGo Kubernetes gRPC DockerPathao (Bengali: পাঠাও); is a Bangladeshi transportation technology company headquartered in Dhaka, Bangladesh. and its operating services in several cities of Bangladesh. Besides ride-sharing services, it operates E-Commerce, Merchant Delivery, Courier and Food Delivery services.Pathao is a Bengali word meaning “send it”.- Bootstrapped Google Container Engine based Infrastructure.
- Wrote developer system tools to help ease bootstrapping, monitoring GCE kubernetes clusters.
- Trained and helped Engineers to understand and use kubernetes in large scale.
Jr. Software Engineer
Bit Mascot Pvt Ltd, Bangladesh.
Nov 2014 – Mar 2015 Full TimeJava Groovy Grails MySQL JavascriptFounded in 2006, Bit Mascot has been working with leading agencies all over the world to provide unique digital solutions to clients large and small. With strong commitment to achieve excellence and aspiration to go beyond the goals.- Worked as Software Engineer in multiple in-house projects, like - WebCommander, Autobill.
- Design and Implemented core features of WebCommander and Autobill.
Consultant
Jan 2014 – Nov 2014 ContractualJava Android LaravelAnother local development firm. I Consult on various problem company faces and find solutions. Make application structure and design that fulfill the requirements of client. Design api back-end, database and software architecture to meet the goal.
Developer
Aug 2014 – Nov 2014 ContractualJava Spring3 MySQL- R&D based work upon a NLP based news aggregation site to suggest popular posts to the reader
Skills
Go C & C++ Java Python
Grails Laravel 5 Spring 3
ElasticSearch MySQL/MariaDB PgSQL Presto
Docker Kubernetes Vagrant
GCP AWS Azure DO Linode
Maven Gradel gulp Bazel git
gRPC Protocol Buffer 3 Jenkins GlusterFS HAProxy InfluxDB
Kafka SQSProjects
- AutoBill
An automated billing software built in Bit Mascot. Manages automated invoice and Recurring Billing
- WebCommander
WebCommander has everything you need to deploy and run a successful online store. Much more than an eCommerce CMS
- PC Oscilloscope
A computer based Oscilloscope simulation program. Shows the output of an oscillating AC circuit’s in computer monitor with an JavaSE based Application.
Recent Posts
CONTINUE READING
The Bucket List
One Bolsover having hung himself from a beam while standing on a pail, or bucket, kicked this vessel away in order to pry into futurity and it was all UP with him from that moment.
Finis.
A list of things that one has not done before but wants to do before dying.CONTINUE READINGHow Do We Get Rid of a InnoDB Deadlock
Last time i heard the word deadlock i was in college. I read the definition of deadlock in text books. I was so lucky or who knows may be careful that i didn’t encounter deadlock until now.
CONTINUE READINGপ্রাইম - বিট সিভ
এক ছোট ভাই পোষ্ট দিল যে ১০০০০০০০০০ এর বড় প্রাইম নাম্বার গুলা কিভাবে বের করা যায়। তার জবাবে এই টিউটোরিয়াল টা লেখা । বড়দের জন্য নয়। ১০০০০০০০০০ প্ররযন্ত প্রাইম নাম্বার আমরা সিভ নামক একটা Algorithm ব্যবহার করে খুব সহজে বের করে ফেলতে পারি। তাই না। sieve মানে ছাকনি। আর Seive of Eratosthenes হল এমন একটা ছাকনি যা কতগুলা নাম্বার থেকে প্রাইম নাম্বার গুলা ছেকে বের করে ফেলে। তার পর-ও যারা সিভ জানে না তারা একটু কষ্ট করে সিভটা শিখে ফেলো।কারন আমরা এখন সিভের খালাত ভাই- মামত ভাই Algorithm শিখব।Publications
False Alarm Detection in Wireless Body Sensor Network using Adaptive and Intelligent Approach
False Alarm is one kind of faulty measuring process which can create unusual intervention over healthcare personnel. In our paper, we proposed an Adapting and Intelligent approach to help detecting false alarm in WBSN (Wireless Body Sensor Network). The practical implementation of our work is able to explore the challenges over our false alarm detection architecture.In CAEAchievements
2019
Joined Booking.com As a Site Reliability Engineer
- Working on multi cloud and bare metal kubernetes container architecture
Moved to Amsterdam, Netherlands
2018
Became Dad of a Beautiful Prince
Designed Joule - Unit of Work Service - Kafka based Data aggregation and unification service
- Never faced any data or engineering issue still handling 20M+ event every day.
- Can be called reliable as never loses any data even in war times.
- Designedunitsdkfor external teams to integrate with the service, being used without complain.
Learned Swimming
Started Building gophersbd/ormpb - golang orm implementation based on protobuf
Learned How to ride a Bicycle
2017
Joined Grab as a Software Engineer
Moved to Singapore
Contributed In kubernetes/helm
Contributed in Kubernetes
BuildingVoyager- Secure Kubernetes Ingress Controller by AppsCode
Became Collaborator of go-gearman
2016
Participated in my 5th ICPC Dhaka Regional
2015
Became Runner UP, IEEE RUET Inter University Programming Contest
- Team Name: MBSTU_Khajna_Dibo_Na
Started Learning GO
2014
Became Expert in CodeForces
19th Position, National Collegiate programming contest (NCPC), 2014
7th Position - International Contest on Programming and System Development (ICPSD)
- Team Name: MBSTU_Khajna_Dibo_Na
2013
Champion, MBSTU Intra University programming Contest 2013
27th Position, BUET Inter University programming Contest 2013
2012
Runner UP, MBSTU Intra University programming Contest 2012
2011
7th Position DUET Inter University Programming Contest 2011
Contact
- [email protected]
- @sadlil on Keybase.
- +31 6 4766 8356
- sadlil.rhythm
- @sadlil
- Amsterdam, Netherlands