Mustafa Tokmak

Software Engineer
Türkiye
linkedin.com/in/mustafatokmak
github.com/mustafaTokmak
Versatile software engineer with 6+ years of experience building scalable, high-quality products for startups. Currently working on Toppie product, pivotal to tenfold ARR increase and market expansion, while contributing to offsite ads integrations

Work Experience

Software Engineer

Topsort

Jul 2021 - Current
  • Developed Campaign Services generating 97% of company revenue and led its integration into the unified Central Services platform
  • Resolved critical performance issues reducing page load times from 60 seconds to under 2 seconds through SQL optimization and pagination implementation
  • Built and maintained integrations with Google Ads and Facebook Ads APIs, enabling automated campaign management across multiple advertising platforms
  • Migrated multiple services to single-region architecture, consolidating backend infrastructure and reducing AWS costs by 65%
  • Implemented comprehensive access control using Permify and integrated SSO solutions, significantly improving security and user experience

Lead Software Engineer

Securify Identity

Jan 2018 - Jul 2021

  • Worked as Lead engineer the expansion of the SecurifyID team to 10, enhancing UI and integrating SSH, VPN, RDP. Implemented IAM, MFA, and SSO to boost user experience.

  • Optimized CI/CD practices for enhanced software stability and quicker on-premises deployments, catering to an expanding customer base.

  • Founding Software Engineer (2018-2020):

    • Developed Biyosecure's MVP with AzureML and Sci-kit for behavioral biometrics authentication, used by a major telecom with 25,000 employees.
    • Managed SecurifyID's APIs with Flask, adding behavioral biometrics and customizable rules for a multi-tenant system, secured with Docker, acquiring first 3 customers.

  • Part-time Software Engineer (2018):

    • Developed and integrated APIs to collect and aggregate security logs using Spring Boot, Java, ActiveMQ, and ELK stack for efficient data storage and visualization.

Education

Bachelors Computer Science

TOBB University of Economics and Technology

2013 - 2020

Master of Science, Computer Science, Information Security

TOBB University of Economics and Technology

2020 - 2022

Skills & Technologies

  • Algorithms
  • Data Structures
  • IAM
  • MongoDB
  • Elasticsearch
  • Git
  • Github
  • AWS
  • Docker
  • Linux
  • Snowflake
  • Machine Learning

Programing Languages & Frameworks & Libraries

  • Python
  • React
  • Typescript
  • Go
  • Node.js
  • Java
  • FastAPI
  • NextJs
  • Celery