Hello! 👋

I'm Masudur Rahman

Senior Software Engineer, Pathao Ltd (Fintech Engineering)

About Me

A professional Software Engineer with 5 years of experience in Back-End Development in Go and almost 2 years of experience in DevOps Engineering. A competitive programmer with great problem-solving skills. I am passionate about learning new things, and am highly adaptive to new technologies.

Go Bash C++ Kubernetes CKA Talos Flatcar Docker Prometheus Grafana Helm Ansible Terraform Postgres Nats GH Actions FluxCD

Experience

Senior Software Engineer (DevOps)

Pathao Ltd., Fintech Engineering

Jan 2024 - Present

Built a resilient Kubernetes foundation by deploying Talos Linux clusters and automating Flatcar OS lifecycles to ensure immutable, repeatable infrastructure.

Tools:Talos LinuxFlatcarKubernetesTerraformAnsible
Balanced cluster workloads by introducing the Kubernetes Descheduler, which fixed node over-utilization and improved overall resource efficiency.

Tools:KubernetesDeschedulerGoHelm
Streamlined data migrations by setting up Apache Airflow on Kubernetes, moving critical on-premise data to GCP BigQuery for better analytics and monitoring.

Tools:AirflowHelmKubernetesPostgresGCP BigQueryAnsible
Improved GKE workload scheduling by refactoring node pool logic (taints/tolerations) and integrating NFS-backed storage for stateful services.

Tools:GKEKubernetesNFSTerraform
Solved cross-site connectivity challenges by implementing Nginx Gateway and Squid proxy, enabling secure and observable traffic routing between distributed environments.

Tools:NginxSquidNetbirdKubernetes
Boosted system visibility by rolling out custom Grafana dashboards and Prometheus exporters for core infrastructure like DNS, GitLab, and Harbor.

Tools:GrafanaPrometheusExportersLinux
Strengthened platform security by standardizing host-level firewall rules and deploying a WAF stack with Bunkerweb and CrowdSec.

Tools:iptablesBunkerwebCrowdSecNetwork Security

Lead Software Engineer

AppsCode Inc.

Jun 2023 - Dec 2023

Lead the design and maintenance of AppsCode API Server, a RESTful API for managing Kubernetes clusters and applications.

Tools:Gogo-macaronHelmk8s
Restructured the cluster import flow for AppsCode Console, improving the user experience and performance.
Implemented dynamic feature controller for managing different features in imported clusters, such as monitoring, security
Restructured the Licensing system for AppsCode products, automating the license issuance, validation and enforcement.
Packaged AppsCode Console as a Service and made it ready for deployment in user k8s clusters (vendor-managed or self-managed) and through various DNS providers and Cloud Storage Services.

Tools:CloudDNSCloudflareAzureDNSRoute53GCSs3Azure Blob StorageLinode Object Storage

Senior Software Engineer

AppsCode Inc.

Jan 2021 - Dec 2022

Designed and Maintained ByteBuilders API Server.

Tools:Gomacaron web frameworkhelmk8s
Added a support for importing Kubernetes Cluster [Managed, Public & Air Gaped] to ByteBuilders Dashboard.
Implemented A Background Task Manager for long running tasks, log/exec features for Kubernetes pods/services and Invoice generation from users' usage data with the help of NATS.

Tools:Gok8sNATS
Developed a Prometheus Proxy Server for Grafana datasource.
Added CI/CD pipelines for projects in Github Actions.
Involved in Deployment & Maintenance of ByteBuilders Production Server.
Guided and managed team-members.

Software Engineer

AppsCode Inc.

Nov 2018 - Dec 2020

Implemented a feature in Pharmer project to support Kubernetes Cluster Provisioning in Google Compute Engine using Cluster API.

Tools:GoShell scripts
Contributed in ByteBuilders API Server integrating various features.
Integrated Stripe Payment APIs including product, plan, payment and invoice apis.
Developed a Kubernetes Controller for Provisioning and Managing Grafana Dashboards and Datasources.

Projects

01OwnerHobby

Expense Tracker Bot

A Telegram bot built with Go to manage and track personal finances. It allows users to record expenses, income, transfers, and loans directly from chat. The bot supports multi-account management (cash, bank, etc.) and generates categorized summaries and PDF reports. Designed for self-hosting with a simple, automation-friendly workflow.

GoTelegram API

02OwnerHobby

Pawsitively Purrfect

Pawsitively Purrfect is a web application for Pet Adoption, written in Go, GraphQL. The project follows the Service-Repository-Data pattern for clean architecture. The Repository layer communicates with Data layer through a gRPC server.

GoGraphQL

03Lead Software EngineerProfessional

ByteBuilders by AppsCode

ByteBuilders is the Back-End server for a Kubernetes Dashboard. Deploy, manage, upgrade Kubernetes on any cloud and automate deployment, scaling, and management of containerized applications. Contributed in implementing the server. Integrated Stripe payment apis, implemented background task manager via NATS Messaging for long running apis, implemented wizard for imiporting Kubernetes clusters from various cloud providers, etc.

GoNATS

04ContributorProfessional

Grafana Operator by AppsCode

Grafana Operator is a Kubernetes Controller for Provisioning and Managing Grafana Dashboards and Datasources. It's based on a grafana sdk. Contributed in adding the initial version of the operator. Also added E2E tests using Gingkgo.

Go

05ContributorProfessional

Pharmer by AppsCode

Pharmer is a Kubernetes Cluster Manager using Kubeadm & Cluster API. Contributed in adding support for creating Kubernetes Cluster in Google Compute Engine using Cluster API.

Go

06ContributorProfessional

Logger by AppsCode

nats-logr is a logr implementation using NATS. union-logr is a logr implementation that aggregates multiple loggers. Implemented these loggers which impacted a great deal in Pharmer project.

GoNATS

07OwnerAcademic

Facial Expression Recognition Using CNN and SVM Approach

Jan 2018 - Oct 2018

Developed a program to recognize Facial Expression from a static image. CNN and SVMs used to train and classify facial expressions into various categories. Python, TensorFlow, SVM, OpenCV used for image processing and machine learning.

PythonTensorFlowSVMOpenCVMachine LearningImage Processing