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nullchefo
// Full-stack engineer Dospat · Bulgaria

Stefan Kehayov.

I design and ship resilient backends and the interfaces that make them useful.

[status] building data-driven systems at scale

years in production
4+
core stack
Java · Spring · TypeScript
based in
Bulgaria (EET)
/01

Experience

Full-stack developer with strong expertise in Java, Spring Framework, TypeScript and Angular. Specialized in developing data-driven solutions and scalable microservice architectures. Passionate about software development, system architecture and continuous professional growth.

  1. Apr 2022 — now

    Full-Stack Developer

    confidential

    Develop and maintain data-driven platforms that ingest, process and visualize large public datasets, enabling fast comparisons and confident decision-making. Design and implement applications that turn raw data into actionable insights for end users.

    • Java
    • Spring
    • TypeScript
    • Angular
    • Redis
    • MongoDB
    • Jenkins
    • Docker
    • Microservices
  2. Feb 2022 — Apr 2022

    Full-Stack Developer

    confidential

    Developed and maintained complex electronic submission forms and the backend services required to process them efficiently at enterprise scale.

    • Java
    • Spring
    • MySQL
    • AEM
    • Kafka
    • Docker
    • Kubernetes
    • Jenkins
    • Less
    • Microservices
  3. Sep 2021 — Jan 2022

    Junior Java Developer

    confidential

    Developed solutions related to high-throughput trading systems. (Details limited due to a non-disclosure agreement.)

    • Java
    • Spring
    • Bamboo
    • Bitbucket
    • Jira
    • Angular
    • TypeScript
    • Splunk
    • MySQL
    • Agile
    • Microservices
  4. Jul 2021 — Sep 2021

    Software Engineering Intern

    confidential

    Integrated an in-house workflow management system (similar to Jira) to manage tasks created by pipelines or users and assign them to team members. Implemented time tracking, file uploads, task linking and automated in-platform and email notifications.

    • Java
    • Spring
    • TypeScript
    • Angular
    • Redis
    • MongoDB
    • Jenkins
    • Docker
    • Microservices
/02

Education

2023 — 2024 Master's degree

Software Technologies with Specialization in AI Systems

University of Plovdiv "Paisii Hilendarski" ↗

Focus areas

  • Software Architecture
  • Intelligent Agents
  • Ontology Engineering
  • Semantic Web
  • Distributed Systems
  • Docker
  • Kubernetes
  • Microservices
/03

Skills

Core proficiency

  • Java 5/5
  • Spring Framework 5/5
  • TypeScript 4/5
  • Angular 4/5
  • MongoDB 4/5
  • Docker 4/5
  • C# 4/5
  • MySQL 3/5
  • Kubernetes 3/5
  • Python 3/5

Languages

  • Bulgarian

    Native · native

  • English

    Fluent

Beyond the keyboard

  • Fast learner
  • Strong analytical skills
  • Communication & teamwork
  • Creative problem-solving
  • Goal-oriented
  • Open Source
  • System Architecture
  • Tech Blogging
  • Distributed Systems

/05 — Contact

Have an interesting problem?

I am always up for talking distributed systems, backend architecture or a project worth building.

location: Dospat, Smolyan, Bulgaria · [email protected]