SAMIN TASIB KHAN
Anna
Summary
Seasoned Software Engineer with 14 years of experience in backend and distributed systems using Go, .NET, Kafka, PostgreSQL on AWS and Kubernetes. As Tech Lead, architected an AI platform on AWS Bedrock and led a customer booking modernization, both recognized for high impact. Drives resolution of Sev-1 incidents and revitalizes stalled initiatives.
Overview
15
15
years of professional experience
Work History
Senior Software Engineer · Tech Lead ("Tech Anchor")
Echo Global Logistics
Chicago
07.2022 - Current
- Agentic AI Platform (ZORG): Architected Echo's reusable AI-agent platform on AWS Bedrock (Claude) for natural-language investigation of distributed systems. Domain teams onboard through declarative typed-source specs and IaC-derived discovery (CDK/Helm synthesis) - config, not agent code - with read-only access enforced via EKS Pod Identity and cross-account sts:AssumeRole with ExternalId.
- Led five-engineer delivery team, providing architecture direction, mentoring, and deployment planning while driving Sev-1 production incidents to permanent root-cause remediation; recognized with multiple monthly engineering awards and two quarterly Technology Excellence Awards.
- Tracking Domain Rewrite: Re-architected carrier- and customer-facing shipment tracking into a dedicated domain - Go and .NET 8 services spanning Kafka consumers, gRPC/Connect APIs, SSE endpoints, and webhook processors.
- Rescued stalled Glue/PySpark compliance pipeline, eliminated production-only DocumentDB timeouts with tunable Spark catalog-concurrency parameter, and launched eligibility enforcement for booking inactivity, insurance validity, and DOT authority across 90K+ carriers, managing launch through hypercare.
- Built foundational tools for deployments, including a real-time engineering dashboard (React over Go BFF) with live architecture catalog, reusable Terraform modules and CDK constructs adopted across engineering, enterprise-wide Redis/Valkey caching library (atomic Lua operations, internal NuGet), SonarQube coverage gates, and pre-deploy Playwright suites; managed Terraform-based Auth0/Okta with enforced MFA and JWT introspection.
- Implemented technology for optimizing transportation and supply-chain management processes.
Senior Application Developer (contract)
Cetera Financial Group
St. Cloud
03.2022 - 07.2022
- Built .NET Core services, overnight sync jobs (MSSQL Oracle, LDAP directory updates), and validation Web APIs with explicit async and concurrency control to eliminate blocking and race conditions.
- Developed and maintained Contributed to AdviceWorks platform, improving service delivery for broker-dealers. to streamline client management processes.
- Supported second-largest family of independent broker-dealers in the U.S., ensuring compliance and operational efficiency.
Senior Software Developer (contract)
Cognizant
11.2021 - 02.2022
- Executed enterprise Okta identity migration, ensuring seamless integration and improved security for user authentication.
- Developed .NET 6 identity service for Okta migration, including token/registration/event inline hooks, claims API for authentication, and introspection-based authorization middleware; upgraded Angular 7→9 auth flows to enhance user experience.
- Developed scalable software solutions using Java and Spring frameworks.
- Collaborated with cross-functional teams to enhance project delivery timelines.
- Led code reviews to ensure adherence to industry best practices and standards.
Senior Software Engineer / Lead Developer
United Airlines
Chicago
02.2020 - 11.2021
- Launched United's post-pandemic travel subscription - a net-new revenue line - on ASP.NET Core APIs with distributed caching, retry-on-failure, and multithreaded service layers.
- Customer Booking Modernization: Led delivery end-to-end as Tech Lead; recognized by senior leadership among the company's highest-impact deliveries. Flagship 'Must Go' flow auto-posts urgent loads to external load boards for wider carrier visibility, with user-set pricing overriding the pricing service.
- Production AI Agents: Shipped two agents on the platform - production debugging/investigation and live architecture & data-flow exploration - embedded in the engineering dashboard and in daily use across two domains, replacing cross-tool archaeology and tribal knowledge with a single query.
- Developed Angular subscription-management tool for contact-center agents, enabling fulfillment, auto-renewal, cancellation, and account views with RSA-encrypted card handling and at-rest encryption.
- Migrated 40 production servers from Windows 2008 to 2016, automating .NET hosting-bundle installs, IIS setup, MSMQ provisioning, and TLS 1.2 enablement, enhancing system security and performance.
- Developed merchandising strategies for subscription products.
Application Developer
ATI Physical Therapy
Bolingbrook
07.2017 - 12.2019
- Developed EMR integration services using HL7, FHIR, CDA, and CDT standards, including nHapi parsing, acknowledgment handlers, and audit logs to ensure compliance and data integrity.
- Implemented multi-protocol document exchange (MLLP, SFTP, Direct secure email, Web API) leveraging a reflection-driven, per-partner plugin architecture to enhance interoperability.
- Implemented multi-protocol document exchange (MLLP, SFTP, Direct secure email, Web API) with a reflection-driven, per-partner plugin architecture.
- Developed integration solutions for an in-house EMR system
Earlier Experience - Software Engineering Roles
01.2012 - 12.2017
- Developed Dijkstra shortest-path call routing for GSM network data; mentored interns and junior developers on best practices.
- Created .NET/AngularJS inventory platform for automotive-parts retail, enhancing user experience and operational efficiency.
- Ekhanei.com: Marketplace bidding algorithm and secure payment integration.
- Engineered marketplace bidding algorithm with secure payment integration, improving transaction reliability and user trust.
Education
M.S. - Computer Science
CUNY College of Staten Island
B.S. - Electronic & Telecommunication Engineering
North South University
Skills
- Machine Learning
- AWS
- AWS Bedrock
- AI Integration
- API Development
- RESTful APIs
- Event-driven architecture
- AWS Glue
- Python
- JavaScript
- TypeScript
- C#/NET
- SQL
- PostgreSQL
- SQL Server
- DynamoDB
- OpenSearch
- Redis
- Kafka
- RabbitMQ
- Amazon MSK
- GRPC
- EKS
- Lambda
- Aurora PostgreSQL
- Step Functions
- EventBridge
- Terraform
- AWS CDK
- Kubernetes
- Helm
- Docker
- Application Monitoring
- Code Quality
- Automated Testing
- Data Retrieval
- Single Sign-On
- User Authentication
- Access Control
- Kubernetes Security
- IAM Policies
- Code Quality
- Automated Testing
Earlier Experience - Roles
- GrameenPhone, Dijkstra shortest-path call routing over GSM network data; mentored interns and junior developers., 2012 - 2017
- Source Soft Solutions, .NET/AngularJS inventory platform for automotive-parts retail., 2012 - 2017
- Liberty Travel, Consumer booking platform with preference-driven vacation-package generation., 2012 - 2017
- Ekhanei.com, Marketplace bidding algorithm and secure payment integration., 2012 - 2017
Core Skills
AWS Bedrock (Claude), agentic AI systems, Model Context Protocol (MCP), RAG, LLM tool orchestration, Anthropic API, Go, C#/.NET, TypeScript, Python, SQL, Kafka / Amazon MSK, RabbitMQ, gRPC / Connect, SSE, webhooks, event-driven architecture, AWS (EKS, Lambda, Aurora PostgreSQL, Step Functions, EventBridge, IAM), Terraform, AWS CDK, Kubernetes, Helm, Docker, PostgreSQL, SQL Server, DynamoDB, DocumentDB, OpenSearch, Redis/Valkey, AWS Glue / PySpark, Auth0, Okta, OIDC/OAuth2, EKS Pod Identity, cross-account IAM, Datadog APM, SonarQube, Playwright
Timeline
Senior Software Engineer · Tech Lead ("Tech Anchor")
Echo Global Logistics
07.2022 - Current
Senior Application Developer (contract)
Cetera Financial Group
03.2022 - 07.2022
Senior Software Developer (contract)
Cognizant
11.2021 - 02.2022
Senior Software Engineer / Lead Developer
United Airlines
02.2020 - 11.2021
Application Developer
ATI Physical Therapy
07.2017 - 12.2019
Earlier Experience - Software Engineering Roles
01.2012 - 12.2017
M.S. - Computer Science
CUNY College of Staten Island
B.S. - Electronic & Telecommunication Engineering
North South University