Python Developer | Open-source contributor | Bug hunter | Tech Enthusiast & Geek

I am a Python Developer with 6+ years of experience designing, developing, testing, and deploying enterprise-grade backend systems. I build asynchronous REST APIs, microservices, data-processing workflows, and reliable automation for industrial, telecom, and enterprise infrastructure products.

My work spans backend engineering, test automation, API quality, CI/CD, observability, cloud deployment, and open-source collaboration. I enjoy finding reproducible bugs, improving developer and user workflows, and contributing focused fixes that make software more reliable.

• ABB - Senior Software Engineer | Jun 2025 - Present
  Industrial edge-to-cloud monitoring and predictive-maintenance systems. Built backend services, REST APIs, automated test frameworks, messaging pipelines, CI/CD validation, and service-level observability.

• LUMEN - Software Development Consultant | Mar 2022 - Jun 2025
  Telecom order provisioning and service activation across Internet, Voice, Wi-Fi, and Cable TV services. Developed asynchronous FastAPI microservices, secure integrations, background jobs, and high-volume transactional workflows.

• HPE - Software Engineer | Nov 2019 - Feb 2022
  Centralized enterprise server management. Built Python services, REST APIs, remote server-operation automation, Linux shell execution workflows, log-parsing services, and unit/integration tests.

• Reduced telecom order-provisioning turnaround time at LUMEN through FastAPI microservices automation, Celery, RabbitMQ/Kafka messaging, and multi-system integration.
• Improved industrial equipment uptime at ABB by enabling real-time predictive-maintenance data pipelines with RabbitMQ/Kafka streaming.
• Increased IT team productivity at HPE by automating remote server operations and log analysis for enterprise infrastructure.
• Designed and maintained Python-based automated test frameworks for real-time industrial data-acquisition pipelines over Modbus TCP/IP.
• Built backend services with FastAPI, SQLAlchemy, and Alembic to process, validate, and route edge-collected data for monitoring workflows.
• Implemented JWT/OAuth2 authentication, CORS policies, HTTPS enforcement, and API rate limiting across microservices.
• Containerized services with Docker and Docker Compose, served them through Uvicorn/Gunicorn behind Nginx, and deployed solutions to AWS.
• Built CI/CD validation pipelines with GitHub Actions and Jenkins, adding logging, Prometheus/Grafana monitoring, and OpenTelemetry tracing.
• Developed remote server controls for power operations, reboot, firmware upgrades, OS deployment, and secure Linux shell automation at HPE.
• Consistently delivered production-ready, well-tested Python code with Pytest while collaborating with Product, QA, and DevOps teams in Agile Scrum environments.

I contribute to open-source AI, developer-tooling, and knowledge-base projects by reproducing issues, fixing bugs, improving user experience, strengthening CI workflows, and clarifying documentation.

Selected merged pull requests authored by sunilkumarvalmiki.

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• Bachelor of Computer Application, SV University, 2019

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