Mir RahmanSecure financial platforms
Backend services, APIs, data-ingestion and data-export integrations, and privacy-aware workflows in regulated environments.
Vancouver, BC, Canada
Mir R.
Solutions Architect & Senior Software Engineer
I design and deliver secure, scalable backend systems, cloud platforms, data workflows, and AI-assisted services for regulated and operationally demanding environments.
About
Architecture thinking. Hands-on delivery.
I combine software architecture design and systems thinking with hands-on delivery. My work spans solution design, APIs, backend services, asynchronous integrations, data platforms, security controls, reliability engineering, and the realities of operating software in production.
I enjoy turning complex requirements into deployable designs—then staying close enough to the implementation to make sure they work. I have collaborated across disciplines and countries, helping teams make sound decisions by explaining technical trade-offs clearly and documenting the path forward.
Selected impact
Engineering where the details matter.
A practical focus on systems that need to be secure, observable, and dependable from design through production.
Cloud and data architecture
Cross-cloud, cross-project, and cross-region data workflows designed around reliability, governance, and cost efficiency.
Distributed systems
Event-driven services, messaging, idempotency, stateful workflows, and the diagnostics needed to operate them confidently.
Practical AI integration
PII-supporting workflows, retrieval-augmented applications, embeddings, vector search, constrained tools, and observability.
One of my most meaningful engineering achievements: delivering architecture and implementation improvements that reduced a major data-transfer workflow’s operating cost by approximately 40%—about $20,000 CAD per month, or approximately $240,000 CAD per year.
Experience
Building dependable systems across industries.
Solutions Architecture Consultant & Senior Software Engineer (Contract)
Samsung Research Canada
- Lead solution design, and build and maintain .NET backend services, REST APIs, and data workflows in a regulated financial-services environment.
- Own the architecture, implementation, operation, and continuous improvement of business-critical cross-project and cross-region data-transfer workflows.
- Design privacy-aware services for PII detection, encryption, and tagging, and architected 25 production data-ingestion pipelines for scalability, idempotency, and recoverability.
- Improve reliability and governance through safeguards, structured logging, monitoring, operational diagnostics, and clear design documentation.
Technology
C#, .NET, Python, PostgreSQL, Docker, Airflow, AWS, Google Cloud, BigQuery, Cloud KMS, Kafka, Redis, LangChain, RAG, MCP, Pinecone
Senior Software Engineer
Questrade Financial Group
- Designed and delivered backend services and REST APIs for investment, banking, trading, and insurance workflows.
- Built asynchronous integrations, state machines, rules engines, and event-driven components.
- Strengthened security, maintainability, and production reliability through design reviews, monitoring, diagnostics, and privacy-aware practices.
Technology
C#, .NET, Python, TypeScript, PostgreSQL, MongoDB, Docker, Google Cloud, Redis
Software Engineer
Konnected Technology Inc.
- Built backend services for an IoT-based factory automation platform.
- Developed APIs and event-driven components for device communication, telemetry processing, and automation workflows.
- Supported production stability through troubleshooting, diagnostics, code reviews, and cross-functional collaboration.
Technology
C#, .NET, Docker, PostgreSQL, event-driven messaging, AWS
Software Engineer
Oversea Security
- Developed and maintained software for an IoT-based marina monitoring system.
- Built backend functionality with C#, ASP.NET, SQL Server, AWS S3, and IIS.
Technology
C#, ASP.NET, SQL Server, AWS S3, IIS
Selected projects
Complex problems, made operational.
A selection of secure platforms, data systems, and distributed services delivered in regulated and demanding environments.
Data privacy and security
Privacy-Aware Data Processing
Designed and developed a service to identify sensitive PII in BigQuery, protect data using managed encryption, and apply governance tags.
Python · BigQuery · BigQuery UDFs · Google Cloud KMS
Data engineering and cloud infrastructure
Cross-Cloud Data Transfer Workflows
Owned repeatable, monitored workflows for moving data across cloud providers, projects, and regions. Identified inefficiencies and implemented an approved change that reduced a major workflow’s operating cost by approximately 40%—about $20,000 CAD per month.
Python · Apache Airflow · Amazon S3 · Google Cloud Storage · Storage Transfer Service · BigQuery Data Transfer Service
Regulated financial services
Reliable Financial-Data Ingestion and Exchange
Architected and implemented 25 production ingestion pipelines with encryption, idempotency, recoverability, fault tolerance, and scalable processing at their core, plus a secure external data-export workflow.
C# · ASP.NET Core · Python · Kafka · Redis · PostgreSQL · Kubernetes · Amazon S3 · Google Cloud Storage · Google Cloud KMS
Secure financial-document processing
Financial Document Lifecycle Platform
Contributed to a platform for uploads, metadata, permissioned access, retention, quarantine and security scanning, secure downloads, traceability, and report generation.
C# · ASP.NET Core · Java · Spring · Apache Camel · Redis · Google Cloud Storage · Google Cloud Pub/Sub · MongoDB
Trading and investment
Investment Recommendation Platform
Helped design and develop distributed services that supported portfolio-based investment recommendations and asynchronous financial workflows.
C# · ASP.NET Core · TypeScript · NestJS · Java · Spring · MongoDB · Redis · PostgreSQL · Kubernetes · Google Cloud Pub/Sub
Industrial IoT and manufacturing
Real-Time Factory Monitoring
Designed and contributed to real-time machine-data ingestion and processing components that improved visibility into production activity and interruptions.
C# · ASP.NET · Python · Kafka · Redis · DynamoDB · PostgreSQL · AWS
Technical strengths
Broad enough to architect. Deep enough to build.
Backend
C#, .NET, ASP.NET Core, Python, TypeScript, REST APIs, microservices
Architecture
Distributed systems, event-driven architecture, CQRS, outbox/inbox, state machines, rules engines, DDD, API design
Cloud & DevOps
AWS, Google Cloud, Docker, Kubernetes, CI/CD, GitHub Actions, Jenkins
Data
PostgreSQL, SQL Server, MongoDB, DynamoDB, Redis, BigQuery, Google Cloud Storage, Airflow / Cloud Composer
Security & privacy
OAuth 2.0, OpenID Connect, IAM, encryption, PII handling, GDPR, CCPA, PIPEDA
AI engineering
Amazon Bedrock, SageMaker, LangChain, RAG, AI agents, MCP servers, Pinecone, Hugging Face embeddings
Observability & quality
Datadog, Grafana, Prometheus, structured logging, xUnit, Moq, NSubstitute, Fluent Assertions
AWS Certifications
AWS-certified cloud expertise.
More than a decade of hands-on AWS experience, reinforced by two certifications earned through proctored, in-person exams at AWS-authorized testing centers, with scaled scores above 850.
Recommendations
Trusted by the people I’ve worked with.
Feedback from engineering leaders and colleagues across the teams and systems we built together.
Full nameMir Md Azizur Rahman — some recommendations refer to Mir as “Azizur.”
I worked with Mir on several projects, and he always stood out for his curiosity, eagerness to learn, and attention to detail. He came up with creative ideas and solutions that improved our work and helped the team. Mir is great at solving problems and always stays positive. I highly recommend him to any company looking for a skilled and thoughtful developer.
Senior colleague at Questrade
Azizur is one of the best among all the people I have worked with. His diversity and understanding of all aspects of programming constantly astounds me. As a team member, Azizur is a very productive person, he is hardworking, broad-minded and a forward thinking individual. Intelligent, ambitious, energetic and proactive perfectionist. A desire for proficiency and education makes Azizur a valuable asset to the team. It is a pleasure working with Azizur and look forward to working with him on many projects in the years to come.
Worked with Mir on the same team
Azizur is extremely detail oriented and highly skilled. He is able to breakdown complex problems into more manageable components and then implement solutions. He is a pleasure to work with and gives well over 100% effort to anything that he does. He fully understands all aspects of programming and the business decisions behind the plan.
Managed Mir directly
Beyond the résumé
Writing, learning, and building.
Contact
Let’s build something reliable.
Have a complex system to design, a platform to improve, or a senior engineering role to discuss? I’d be glad to hear about it. Let’s connect.
hello@mirrahman.caBased in
Vancouver, British Columbia