I’m a passionate Backend Software Engineer currently rocking it at Appscode Inc. since April 2023. With over 2 years and 4 months of hands-on experience building highly scalable, cloud-native backends in Go, I thrive on designing distributed systems, automating infrastructure, and ensuring rock-solid reliability in production environments. I have notable success on Competitive Programming platforms such as Codeforces, CodeChef, and LeetCode—or competing in ACM ICPC regional contests!

• Languages & Databases: Go, C++, Python, Bash, PostgreSQL
• Cloud & DevOps: Docker, Kubernetes, Helm, AWS, GCP, Linux, Terraform, Istio
• Observability & Monitoring: Prometheus, Grafana
• Networking & Protocols: REST, gRPC, HTTP, TCP, TLS/MTLS
• CI/CD & Tooling: Git, GitHub Actions, Makefile
• Others: API Design, System Design, Distributed Systems, Microservices

April 2023 – Present

• Kubernetes Operator & Controller Development:
  • Extended Kubernetes via CRDs and custom controllers (Go) to automate PostgreSQL and Oracle cluster orchestration, achieving 99.999% high availability in Kubernetes environments.
  • Implemented autoscaling, self-healing, and automated failover to avoid downtime and ensure 99.99999% data safety, reducing manual failover interventions by 90%.
• Observability & Monitoring:
  • Co-developed a Prometheus generic metrics exporter and crafted Grafana dashboards for real-time insights on PostgreSQL performance, resulting in a 99% reduction in production outages.
• CI/CD & Automation:
  • Built end-to-end CI/CD pipelines with GitHub Actions for Managed PostgreSQL on Kubernetes. Automated builds, tests, Docker image creation, and deployments—cutting manual steps by 80% and accelerating release cycles by 30%.
• Distributed Systems & Storage:
  • Leveraged consistent hashing algorithms and the Kubernetes Operator pattern to distribute workloads evenly among registered controllers, ensuring efficient resource utilization in a distributed system.
  • Added support for Amazon S3, GCS, Azure Blob Storage, and NFS for PITR and cron backups.
• Release Management:
  • Led the release of KubeDB v2024.8.21, introducing a stable v1 API for the kubedb.com resource group and managing backward-compatible conversions from v1alpha2 to v1.
  • Managed various KubeDB release including KubeDB V2025.2.19, KubeDB V2025.3.24.

Jun 2023 - Present | Appscode Inc
KubeDB Managed Service which lets you run production grade PostgreSQL databases in kubernetes.

• Provisioning, Clustering, Disaster Recovery, Scaling, Upgrading support for PostgreSQL in Kubernetes Environment.
• Provision a PostgreSQL Database within a minute in kubernetes environment.
• Fully Automated failover support ensuring near zero downtime.
• Point-In-Time Recovery Support.

July 2024 - Present | Appscode Inc
KubeDB Managed Service which lets you run production grade Oracle databases in kubernetes.

• Manage the Lifecycle of Oracle Database in Kubernetes Environment.
• Fully Automated failover support and database clustering.

Jan 2025 - Feb 2025 | Appscode Inc
Leveraged consistent hashing algorithms and the Kubernetes Operator pattern to distribute workloads evenly among registered controllers, ensuring efficient resource utilization in a distributed system.

Dec 2023 - Jan 2024 | Appscode Inc
A custom kubernetes controller that can follow its leader pod without restart even if leader pod restarts or change node.

Dec 2024 – Present
A high-performance, gRPC-based IoT backend handling real-time location streaming and health alerts for running/walking events.

• Engineered using Go concurrency primitives, gRPC, in-memory caching, PostgreSQL, and InfluxDB to process high-frequency data streams.
• Implemented group-based goal tracking, distance computation, and real-time alerting for health metrics.

Apr 2023 – Jun 2023
A RESTful book management service built with Go, Chi, JWT, and Kubernetes.

• Designed and implemented JWT-based authentication/authorization.
• Containerized the application with Docker and deployed on Kubernetes via Helm charts and Makefile—demonstrating end-to-end CI/CD workflows.

November 2024 - December 2024

• Developed a high-performance concurrent file uploader using Golang’s goroutines and channels, achieving 300% faster upload speeds compared to sequential methods.

University of Barishal — Bachelor of Science in Computer Science & Engineering
Jan 2017 – Mar 2023 | CGPA: 3.56/4.0

• Relevant Coursework: Data Structures & Algorithms, Software Engineering, Computer Networks, AI, Machine Learning

• ACM ICPC Dhaka Regional Programming Contest:
  • Ranked 11th (2021) & 13th (2022) out of 165+ teams (Divisional Champion)
• ACM ICPC Asia West Continent Finals:
  • Finalist in 2022 & 2023 (contended among top teams in Asia West)
• Competitive Programming:
  • Top 1% in CodeChef SnackDown 2021
  • Top 2% in Meta HackerCup 2022
• Hackathon & T-Shirt Wins:
  • Earned t-shirts from Meta HackerCup 2022 and CodeChef SnackDown 2021

• 📧 Email: sourav.cse4.bu@gmail.com
• 🌐 LinkedIn: linkedin.com/in/sourav-biswas-santo
• ⚙️ GitHub: github.com/souravbiswassanto

“Striving for elegant, scalable, and resilient backend architectures—one commit at a time.”