Sebastian Sulima

Back-end Developer

Front-end Developer

Freelancer

Programmer

Sebastian Sulima

Fullstack Developer

Back-end Developer

Front-end Developer

Freelancer

Programmer

About Me

As a Backend Developer with over 8 years of experience, I specialize in web application development and IoT technologies. I am proficient in PHP, C++, Node.js, and SQL, leveraging frameworks like Laravel and Symfony to build scalable solutions. My expertise extends to designing RESTful APIs, managing databases (MySQL, PostgreSQL, MongoDB), and utilizing Docker for containerization.

I have a solid understanding of Linux environments and bash scripting, allowing me to automate server tasks effectively. I prioritize application security by implementing best practices to protect against vulnerabilities. My passion lies in creating robust, efficient, and high-quality backend systems that drive impactful solutions.

  • Age . . . 33
  • Education . . . General Secondary School
  • Freelance . . . Available
  • Current address . . . Thailand, Phuket
My Services
Web Applications

Web Application Developers play a crucial role in designing and coding web applications that enhance user experience. They collaborate closely with designers to create intuitive and user-friendly interfaces that meet the needs of end-users. In addition to development, these professionals troubleshoot issues within applications and optimize them for performance to ensure speed and reliability.

Proficient in a variety of programming languages and frameworks, Web Application Developers stay updated with the latest technologies and industry trends. This commitment to continuous improvement allows them to implement innovative solutions and adapt to evolving user requirements, ultimately contributing to the success of the applications they build.

FRONTEND

I specialize in front-end technologies, including HTML, CSS, JavaScript, and Vue.js, focusing on creating user-centric and responsive web interfaces. I use HTML for structured content and accessibility, CSS for visually appealing designs with layouts and animations, and JavaScript to implement dynamic functionalities. Vue.js allows me to build efficient single-page applications (SPAs) through its component-based architecture, ensuring high-quality solutions that meet user needs.

BACKEND

As a Backend Developer, I specialize in creating robust solutions using technologies such as PHP, Node.js, SQL, and NoSQL. My focus is on crafting secure and scalable backend systems that are tailored to meet the unique requirements of each project.

Leveraging the latest technologies and best practices, I ensure that the backend architecture is efficient, reliable, and capable of handling high traffic loads. With a commitment to security, I implement various protocols and techniques to protect sensitive data and maintain user privacy. My goal is to deliver backend solutions that not only support current needs but also allow for future growth and adaptability.

WordPress DEV

I am proficient in harnessing the potential of WordPress CMS to create highly customizable and SEO-friendly websites. My focus is on developing user-centric designs that enhance user engagement and interaction. By extending functionalities through plugins and custom code, I ensure that each website is tailored to meet specific client needs and provides a seamless online experience for users.

With a strong understanding of best practices in search engine optimization, I implement strategies that improve visibility and drive traffic, helping businesses achieve their online goals. My goal is to deliver comprehensive WordPress solutions that not only look great but also perform exceptionally well in terms of usability and search engine ranking.

Web applications Security

I possess advanced skills in safeguarding digital assets by implementing robust defense measures and strategies designed to mitigate online threats. My approach focuses on identifying vulnerabilities and establishing comprehensive security protocols that protect sensitive data from unauthorized access.

By utilizing the latest cybersecurity technologies and best practices, I work to enhance overall data protection for organizations. This includes conducting risk assessments, developing incident response plans, and providing ongoing monitoring to detect and address potential threats in real-time. My goal is to create secure environments that not only protect critical information but also instill confidence in users and stakeholders regarding their data safety.

Server management

I have advanced skills in managing and securing Linux servers, ensuring optimal performance and robust system defenses. My expertise includes configuring server environments, implementing security protocols, and regularly monitoring system health to identify and resolve potential issues.

I prioritize system efficiency by optimizing resource utilization and performing regular updates and maintenance. By employing industry best practices, I create secure server environments that safeguard against unauthorized access and cyber threats, ensuring that systems operate smoothly and reliably.

Unreal Engine

I am familiar with using Blueprints in Unreal Engine to create interactive and immersive gaming experiences. My focus is on leveraging Blueprints to design engaging gameplay mechanics that captivate players.

I am actively enhancing my skills in game design through Blueprints, exploring features to streamline the development process and create innovative designs that deliver dynamic user interactions.

Resume
Experience
2015 - Present
Fullstack developer
UNICORN Interactive

I focus on designing and developing robust backend applications using PHP in a Linux environment. My responsibilities include implementing efficient data management strategies, where I excel in database design, implementation, and performance optimization to ensure data integrity and accessibility.

Additionally, I create efficient and responsive user interfaces with HTML, Vue, and other modern front-end technologies, ensuring a seamless user experience.

I utilize Docker for containerization to manage software release environments effectively, promoting consistency and efficiency in deployment processes. Collaboration is key in my role, as I work closely with team members and interact with other departments to deliver innovative backend solutions that drive project success.

2015 - Present
Freelancer

As a freelancer, I provide versatile expertise in web development, with a strong emphasis on backend development. I design and develop robust applications using PHP, Node.js, and other relevant technologies to create efficient, server-side solutions.

Additionally, I specialize in crafting responsive user interfaces using modern front-end technologies such as HTML, CSS, and JavaScript. This combination of backend and front-end skills allows me to deliver comprehensive and cohesive web solutions tailored to client needs.

My Skills
Coding
  • PHP (>= 5.X)
    95%
  • C/C++ for embedded systems
    75%
  • Linux shell
    75%
  • MySQL, PgSQL, MongoDB
    85%
  • Linux - DEVOP
    85%
  • Docker
    85%
  • CI & CL & GitHub & GitLab
    75%
  • VUE2 & VUE3
    75%
  • JavaScript | TypeScrip
    75%
  • HTML | CSS
    75%
Languages
  • Polish
  • English
  • Thai
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