Backend Developer & DevOps

Hi, I'm Sepehr Yousefi

I'm a

I build back-end systems and infrastructure that are always ready to scale. From crafting Java services to shaping DevOps pipelines and networks, my goal is to keep every service stable, observable, and secure.

Profile

Mantra

Infrastructure that gets better with every deploy.

About

Keeping services steady from code to network

I obsess over building services that are resilient, observable, and trustworthy. Java back-end experience with microservices plus DevOps and networking skills let me stay involved from design through deployment and ongoing monitoring.

  • Java Back-end Development
  • DevOps & Automation
  • Network+ & CCNA
  • Python Scripting

Recent teams

Havin • Retaste • DarkTrade

Six months with Havin as a back-end developer plus DevOps roles at Retaste and Vibe Coder (DarkTrade.ai) taught me how to ship alongside product, security, and ops teams.

Skills

Blending code, networking, and operations

DevOps

90%

Designing and maintaining CI/CD, container platforms, monitoring, and cloud infrastructure.

Java Back-end

70%

Designing REST services, tuning databases, and shipping scalable modules.

Network+ / CCNA

65%

Planning topologies, hardening network security, and debugging complex connectivity.

Python

55%

Writing automation scripts, monitoring tools, and integration helpers.

CI/CD Tooling

60%

GitHub Actions, Jenkins, ArgoCD, and deployment strategies.

Cloud & Containers

65%

Docker, Kubernetes, and resource management across hybrid clouds.

Experience

Working with teams that scale fast

Backend Developer

Havin

6 months

Built payment modules and Java services, optimized databases, and added integration tests for critical services.

DevOps Engineer

Retaste

DevOps Retaste

Created CI/CD pipelines, automated deployments, and delivered unified logging and metrics stacks.

Vibe Coder

DarkTrade.ai

DevOps / SRE

Scaled DarkTrade's trading infrastructure via containerized services and blue/green deployments for high uptime.

Projects

Highlights of recent impact

Backend

Havin

Microservice payment core

Designed RESTful Java + Spring services for transactions and authentication with fault tolerance and scale in mind.

View

DevOps

Retaste

Pipeline Observability

Automated service deployments and added tracing plus realtime alerts to monitor every release and roll back quickly.

Details

Infrastructure

DarkTrade.ai

Realtime trading infrastructure

Segmented sensitive services with dedicated container networking and used blue/green deploys for near-zero downtime.

Site

Contact

Let's discuss your next launch