emre_guler_

const role = "Software Developer";

const company = "Appcircle";

/* Software Developer with 6+ years of experience across SaaS, e-commerce, and enterprise systems, with a growing focus on platform security, infrastructure, and agentic engineering practices. Proven track record of resolving critical security vulnerabilities, leading infrastructure modernization initiatives, and pioneering agentic engineering workflows within software teams. Strong technical foundation in C#, .NET Core, Redis, Docker, and cloud platforms, with hands-on experience building RESTful APIs and microservices. */

github hi@emreguler.dev cv.pdf

import { experience } from "./career.log"

Software Developer Jan 2026 — Present

Appcircle · Delaware, United States

Pioneered the adoption of Claude-based agentic engineering within the team by designing tooling, establishing best practices, and delivering internal technical presentations.
Identified and resolved multiple security vulnerabilities across the platform, including infrastructure hardening and fixes to input-handling and access-control issues.
Led infrastructure and DevOps initiatives, migrating core production systems to a self-hosted virtualization platform while improving Linux server security and reliability.
Contributed to core backend services in a microservice architecture, including scalability improvements, third-party integrations, and performance work.

Backend Developer Mar 2023 — Jul 2025

Sertifier · Delaware, United States

Designed and maintained SaaS applications using C# and .NET, focusing on scalable and maintainable backend systems.
Implemented CI/CD pipelines with automated testing, reducing deployment time by 30–50% and improving software delivery reliability.
Optimized SQL queries and refactored high-traffic endpoints, improving API response times by 35% for enterprise clients.
Developed a secure authorization microservice from scratch using Go and Redis caching for low-latency performance.

Backend Developer Jul 2021 — Feb 2023

Inveon · Istanbul, Turkey

Optimized MSSQL (SQL Server) queries and Redis caching strategies, reducing API response times by 20% under heavy load.
Designed scalable service architectures in C#/.NET, enabling modular and extensible SaaS platform development.
Collaborated with cross-functional teams (frontend and QA) to ensure seamless integration and system reliability.
Implemented new payment and delivery modules, contributing to a 10–15% increase in overall sales.

Junior Software Developer Jun 2019 — May 2021

Codex · Istanbul, Turkey

Maintained and refactored existing codebases, improving code quality and reducing bug incidence by 15% through testing and code reviews.
Developed and deployed client-focused web application features using C#/.NET Core, enhancing user experience and meeting business requirements on time.

const skills = {

languages

Turkish (Native)English (Intermediate)

languages_frameworks

C#.NET CoreGo (Fiber)Node.js

databases

Microsoft SQL Server (MSSQL)MySQLRedisMongoDB

devops_cloud

AzureAzure DevOpsGCPKafkaDockerKubernetesProxmoxCI/CD

security

Vulnerability RemediationInfrastructure HardeningAccess Control

ai_agentic_tools

Claude CodeAgentic EngineeringDeveloper Tooling

practices

SaaS DesignMicroservicesREST API DesignAgile

};

emre_guler_

import { experience } from "./career.log"

const education = [...]

const skills = {

import { reach } from "./contact.md"