Bringing in experience in Software Development, DevOps, Site Reliability and Physical Infra across 3+ years.
Currently Senior DevOps Engineer at Enosis Solutions, where I gate releases for core client applications,
take on-call for incident response, and own observability across 70+ services on Azure, AWS, and GCP.
Before that, three years at Chaldal PLC: led PCI DSS compliance to completion, and built and ran the payment
infrastructure, handling 5,000+ daily transactions and 140+ Kubernetes deployments across 4 physical datacenters
in Bangladesh and Singapore.
Comfortable in distributed systems, microservice architectures, secure coding, network infrastructure and
agentic workflows. A curious generalist at heart, with a passion for understanding systems deeply
and delivering robust solutions.
Mir Shafayat Ahmed - Bio
Skills
Let's get in touch!
-
2019 - 2024
Independent University, Bangladesh (IUB)
Dhaka, Bangladesh
BSc. in Computer Science
GPA: 3.69/4.00
-
2016-2018
Presidency International School (PIS)
Chattogram, Bangladesh
CAIE A Levels
Physics, Maths: A Chemistry: C -
2010-2016
Chittagong International School (CIS)
Chattogram, Bangladesh
Grade 6 to Cambridge O' Levels
Physics, Maths D: A*,
Add. Maths, English, Bengali: A,
Chemistry, Biology, ICT: B+ -
Till 2010
International School And College (ISC)
Chattogram, Bangladesh
Senior DevOps Engineer
Enosis Solutions, Bangladesh - Site Reliability, US B2B SaaS client (14,500 customer locations, 175,000 users)
- Gate releases for the client's core applications: track what each engineer plans to ship, review the tickets, and hold or clear changes based on risk
- Carry on-call from first triage through root cause, then run RCA sessions with engineers and engineering management that target the process gap, not just the incident
- Proved the load tests missed most user hot paths, the cause of repeat slowness incidents, then delivered dashboards and recommendations to close it
- Own Datadog observability across 70+ services in 8 product families on Azure, AWS, and GCP, mostly Azure: build and tune monitors, dashboards, and SLOs
- Handle resource diagnostics and configuration review across the client's cloud estate
- Automate ops work: Azure DevOps pipelines and service hooks that update Linear tickets on ship, plus fleet scripts such as a tenant-wide Datadog agent upgrade
- Build MCP triage workflows across the Azure, Datadog, and ticketing stack, and reusable agent skills encoding our triage flows, monitor standards, and script safety checks for consistent, verifiable output
Infrastructure Engineer (L3) · Software Engineer
Chaldal PLC, Bangladesh - Payments + Infrastructure Team
- Led gRPC integration between Payments and Grocery microservices, improving system reliability and response times
- Technical POC and orchestrator for PCI DSS audit compliance, implementing secure vault service with encryption, secret sharing, and secure coding practices
- Core developer for ChaldalPay platform, building end-to-end transaction features including user transfers, merchant payments, utility bill payments, and wallet top-ups with fraud detection
- Implemented extensive admin activity logging throughout the ChaldalPay system with maker-checker controls
- Integrated multiple third-party payment APIs (bKash, Braintree, PortPos, Nagad, EKPAY) with resilient error handling and retry mechanisms
- Enhanced payment security by implementing 3D Secure authentication (Braintree), improving customer experience and reducing fraud
- Managed and maintained 140+ different Kubernetes deployments as part of Chaldal's overall infrastructure
- Established network security infrastructure: configured Mikrotik core routers and switches, SIEM, site-to-site + employee VPNs, firewalls, and Active Directory integration
- Mentored 2 engineers and onboarded 4 team members on actor-based frameworks, state management, payment systems and accounting
- Regular on-call experiences requiring Kubernetes log debugging, extensive code reviews and patches, network inspection, database quorum management
Physics Teacher
Chittagong International School
- Fulltime teacher of Physics, Grade 6 to 9
- Guiding Students to a win at the National Round of British Council Your World Competition 2019
- Researched and introduced new books and resources to modernize the School Curriculum
Title 1
subtitle
Lorem, ipsum dolor sit amet consectetur adipisicing elit. Nulla ad asperiores deserunt placeat eum dignissimos quas similique debitis totam aspernatur. Dolorem ad odio blanditiis qui sequi velit vero molestias repudiandae?
Title 2
subtitle
Lorem, ipsum dolor sit amet consectetur adipisicing elit. Nulla ad asperiores deserunt placeat eum dignissimos quas similique debitis totam aspernatur. Dolorem ad odio blanditiis qui sequi velit vero molestias repudiandae?
agent-os (2026)
- Coding agents claim done without proof and devs want agents to follow rules that nothing enforces. Prompting harder does not fix a workflow problem
- Moves the rules out of the prompt and into the repository: one rule file every supported agent reads, plus typed task state and an append-only evidence ledger
- Nothing reaches done until an external verifier passes.
agentos verifyruns the project's own format, compile, test, policy and security commands, then takes each status from the exit code rather than from what the agent reports - Hooks enforce the rules at the point of action: a forbidden path blocks the edit, and invalid state or a broken ledger refuses the done claim
- Enforcement ships for Claude Code (hooks), opencode (a plugin), and any git flow (a pre-commit hook). The rules are model-independent, so they survive a change of agent or harness
- Zero dependencies, no install step, and extensible with your own rules. It runs on its own rules, CI keeps that true, and each design choice is graded against published research in an accompanying whitepaper
Dorbar Dekchi Tracker (2026)
- Freelance work for a traditional institution. Logistics platform built in 15 days
- Tracked 800 reusable food pots across multiple fast-paced and chaotic distribution cycles, ultimately feeding ~450,000 people
- React PWA with Firebase real-time dashboards shown on Google TV displays
- GCP storage for delivery receipts, and volunteer-facing web forms to update container status and delivery routes
BGP Bangladesh (2026)
- A hobby project to visualize and analyze how Bangladesh is connected to the global internet and the gateways traffic flows through
- Explores BGP routing data to map Bangladesh's international connectivity
- Visualizes the path internet traffic takes from Bangladesh to the global internet
Card Vault - PCI DSS Compliance (2025)
- Implemented secure vault service for PCI DSS compliance with secret-sharing mechanisms
- Coordinated with auditors on network infrastructure and software architecture
- Set up mTLS, Tokenization, Public Key Encryption (PKE), and Network Segmentation
- Handled 5,000+ daily transactions securely across 140+ Kubernetes deployments
Microservice Architecture Enhancement (2024)
- Designed and implemented gRPC-based communication between Payments and Grocery microservices
- Replaced inefficient polling with event-driven architecture
- Implemented channel caching, request queues and resilient error handling strategies
- Automated alarms for failed communication attempts, improving system reliability and response times
Maker-Checker Refactor and Activity Log (2024)
- Refactored full codebase to support a maker-checker system for highly sensitive admin actions
- Implemented comprehensive activity logging presented in a queryable UI
- Required extensive knowledge of actor-based frameworks, frontend and backend codebase
- Configured ACL at both API and Web UI levels for enhanced security
ChaldalPay Transaction System (2023-2024)
- Built core transaction engine enabling user-to-user transfers, merchant payments, and utility payments
- Implemented wallet top-ups with automated retries, error handling, and comprehensive ACL
- Created admin panel pages for transaction monitoring and management
- Implemented rate limiting, frequency and amount-based fraud detection with approval process
- Service charge modification capabilities for business flexibility
IOT-Based Greenhouse Hydroponics System (2022)
- A Group Project of Microprocessor.
- Remotely Monitoring Sensors, Updating Greenhouse Parameters. Automated Maintanence of the System.
- 1st Prize in the Course
Student Enrollment Analysis System (2021)
- A Python, Django, MySQL Project
- A Group Project of DBMS.
- Making a Database from an excel Dataset and retrieving data to show interactive charts and tables in a website.
Website For A Band (2021)
- A PHP, Bootstrap, MySQL Project
- A Group Project of WebApp Course.
- Created a functional Website for a band that allows User, Merch, Ticket, Messages Management
Peer Support (2021)
- Created the foundations of a mental health counselling software supported by volunteers with supervisor, admin support. Using Interviews, Questionnaires, JAD Sessions. Making Usecase, Activity, Data Flow, Class, ERD, Sequence, etc. diagrams
- A Website Where people can anonymously chat and receive help from volunteers
- Supervisors And AI makes sure no illegal or inappropriate messages are exchanged
- A full report on the planning, analysis and design phases available on GitHub
- A Group Project of System Analysis Course.
Weather Forecast Website (2021)
- A PHP, Bootstrap, OpenWeatherMap Project
- A Project of WebApp Course.
- Created a website to show forecast