Khawja Tahir
@khawjatahir
Senior Software Engineer at ExpertSystemSolution building secure payment systems and LLM-powered applications with Go, Python, and AWS.
PakistanWhat I'm looking for
At ExpertSystemSolution, I design secure payment solutions that integrate banking APIs, ACH processing, and cryptocurrency transactions. I also develop backend services and REST/gRPC APIs using Golang, Python, PostgreSQL, and AWS.
I’ve designed LLM-powered applications, including AI assistants and document-processing workflows, and built scalable microservices with Golang. My work also includes React and TypeScript dashboards for operational visibility.
At CodeTech, I developed real-time multiplayer gaming features with Golang and Nakama, automated CI/CD pipelines, and contributed to RAG systems using vector databases and knowledge retrieval pipelines. My projects include fintech payment platforms, blockchain infrastructure, and real-time communication and gaming applications.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Expert System Solution
Sep 2022 - Present (4 years 2 months)
Designed and implemented secure payment solutions integrating banking APIs, ACH processing, and cryptocurrency transactions. Developed high-performance backend services and REST/gRPC APIs using Golang, Python, PostgreSQL, and AWS.
Senior Golang Developer
CodeTech
Jan 2020 - Aug 2022 (2 years 7 months)
Developed real-time multiplayer gaming features using Golang and Nakama. Automated CI/CD pipelines for deployments on AWS, Google Cloud, and DigitalOcean, and built interactive dashboards with React and TypeScript.
Software Engineer
ArhamSoft
Apr 2017 - Dec 2019 (2 years 8 months)
Developed and maintained scalable backend services and RESTful APIs using Golang. Integrated third-party APIs, worked with PostgreSQL/MySQL for database design and optimization, and implemented unit and integration tests.
Education
Degrees, certifications, and relevant coursework
University of Engineering and Technology
Bachelor of Computer Science, Computer Science
2013 - 2017
Bachelor of Computer Science degree from the University of Engineering and Technology, Lahore, from 2013 to 2017.
Availability
Location
PakistanAuthorized to work in
Salary expectations
Social media
Job categories
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