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Daniel

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Senior Fullstack LLM Engineer @ Cassovia Code

Senior
Seniority
GMT+02:00, Spišská Nová Ves, Slovakia
Location & Timezone
$40 - $50/hr
Average Hourly Rate
Slovak, English
Languages

Top skills

React.js
Next.js
TypeScript
Node.js
PostgreSQL
GraphQL
Azure DevOps
AWS
AI & ML Solutions

About

Senior full-stack engineer specializing in Next.js, Node.js, React, TypeScript, Node.js, PostgreSQL, and GraphQL. He has experience building conversation-driven products, including structuring free-form user input into usable data and integrating LLMs for follow-up flows and text interpretation. Comfortable with backend-leaning roles, cloud environments, and async, remote collaboration.

Top skills

Verified by Pangea.ai due diligence

Top SkillsCurrent UsageSeniority
React.js
20%9 years
Next.js
10%9 years
TypeScript
0%9 years
Node.js
20%8 years
PostgreSQL
10%7 years
GraphQL
0%7 years
Azure DevOps
0%6 years
AWS
10%6 years
AI & ML Solutions
30%0 year

All skills

Roles and tools, to bring ideas to life and create meaningful experiences

AI & ML Solutions
Telemedicine
Enterprise Software
Data Analytics and Visualization

Professional experience

Explore a curated selection of projects highlighting Daniel's expertise and experience. Each project aims to showcase challenges, solutions, and the final outcome, along with the tools and technologies used.

Under MNDA
Freelance developer — Freelance Fullstack AI developer
Provided consulting services to companies, delivering exceptional support for a variety of small-scale projects involving data mining and data analysis. Collaborated closely with clients to understand their specific needs and objectives, ensuring the successful execution of project deliverables. Employed meticulous attention to detail and analytical prowess to validate data accuracy and integrity, ensuring reliable findings and recommendations. Successfully completed projects within specified timelines, consistently meeting and exceeding client expectations.
AI & ML Solutions
Web Apps
HospitalityTech
FinTech
Frontend Development
+8

GlobalLogic Slovakia
Senior software engineer at GlobalLogic — Senior Fullstack Software engineer
Led a multidisciplinary team, fostering collaboration and guiding developers to implement best practices. Created detailed system specifications to ensure a well-structured and scalable architecture. Designed a custom UI/UX component library, ensuring a consistent user interface across the application. Ensured the system adhered to healthcare regulations while enhancing patient care efficiency. Developed a user-friendly system that streamlined patient management and communication among healthcare providers. Conducted interviews for new candidates, ensuring the selection of highly skilled professionals for the team. Established a reusable design component library for use on TV screens in emergency rooms, optimizing future development efforts.
Web Apps
Website Design
Mobile Apps
Databases
HealthTech
+17

Sudolabs
authentication for administrators, security — Senior software engineer
Successfully served as a Senior Software Engineer, demonstrating expertise in fullstack development and employing cutting-edge technologies. Spearheaded two projects, effectively applying the latest industry advancements to deliver exceptional results. Led the implementation of two-factor authentication for administrators, ensuring heightened security measures. Developed and integrated authentication using NextJS middleware function in conjunction with the Google Workspace API. Proficiently operated with a diverse range of technologies, including NextJS, React, Typescript, Cypress, GraphQL, and Node.js.
Web Apps
Information Technology
SocialTech
Cybersecurity
Frontend Development
+6

Preferred tools

View the preferred tools and apps used by Daniel to assess compatibility and alignment.

Git
Git
Any.do
Any.do
Airtable
Airtable
Apple Notes
Apple Notes
ClickUp
ClickUp
Creative Cloud
Creative Cloud
Demodesk
Demodesk
Etherpad
Etherpad
Figma
Figma
Firebase
Firebase
G Suite
G Suite
Github
Github
Jira
Jira
Joplin
Joplin
Kissflow Workflow
Kissflow Workflow
Linear
Linear
Loom
Loom
Microsoft OneNote
Microsoft OneNote
Microsoft Teams
Microsoft Teams
Microsoft To Do
Microsoft To Do
Monday.com
Monday.com
Movavi Screen Recorder
Movavi Screen Recorder
OmniFocus
OmniFocus
OneDrive
OneDrive
Oracle PL/SQL
Oracle PL/SQL
PHP Storm
PHP Storm
OBS
OBS
Obsidian
Obsidian
Skype
Skype
Slack
Slack
Slack Huddle
Slack Huddle
Sketch
Sketch
Surfly
Surfly
Team Foundation Server
Team Foundation Server
Team Foundation Software
Team Foundation Software
TickTick
TickTick
Tray.io
Tray.io
Trello
Trello
Visual Studio
Visual Studio

Career highlights

Discover Daniel’s professional journey, including employment history, certifications, and educational background.

Freelance developer
Freelance2022 - 2025
Provided consulting services to companies, delivering exceptional support for a variety of small-scale projects involving data mining and data analysis. Collaborated closely with clients to understand their specific needs and objectives, ensuring the successful execution of project deliverables. Employed meticulous attention to detail and analytical prowess to validate data accuracy and integrity, ensuring reliable findings and recommendations. Successfully completed projects within specified timelines, consistently meeting and exceeding client expectations.
Senior software engineer
GlobalLogic2023 - 2025
Led a multidisciplinary team, fostering collaboration and guiding developers to implement best practices. Created detailed system specifications to ensure a well-structured and scalable architecture. Designed a custom UI/UX component library, ensuring a consistent user interface across the application. Ensured the system adhered to healthcare regulations while enhancing patient care efficiency. Developed a user-friendly system that streamlined patient management and communication among healthcare providers. Conducted interviews for new candidates, ensuring the selection of highly skilled professionals for the team. Established a reusable design component library for use on TV screen in emergency rooms, optimizing future development efforts.
Senior software engineer
Sudolabs s.r.o2022 - 2022
Successfully served as a Senior Software Engineer, demonstrating expertise in fullstack development and employing cutting-edge technologies. Spearheaded two projects, effectively applying the latest industry advancements to deliver exceptional results. Led the implementation of two-factor authentication for administrators, ensuring heightened security measures. Developed and integrated authentication using NextJS middleware function in conjunction with the Google Workspace API. Proficiently operated with a diverse range of technologies, including NextJS, React, Typescript, Cypress, GraphQL, and Node.js.
Senior Software Engineer
NESS KDC2019 - 2021
Developed a front-end logistical application for maintenance of industrial turbines as a Senior Software Engineer. Successfully engineered a searchable and sortable virtual table from scratch, capable of handling over 10,000 rows downloaded to the browser. Implemented automation testing using Cypress, resulting in enhanced project efficiency and reliability. Contributed to optimizing the new release process, resulting in improved project delivery timelines. Conducted interviews for new candidates, ensuring the selection of highly skilled professionals for the team. Provided coaching and mentoring to colleagues, fostering their professional growth and enhancing overall team performance. Getting certified as a Professional Scrum Developer and Junior Linux Administrator.
Fullstack developer
GroupSolver, Inc.2016 - 2019
Acquired proficiency in the React library through successful development of two product applications, collaborating closely with both product and marketing teams. Demonstrated expertise in presenting data visualizations using the d3.js library. Optimized app to be able to be used on gaming consoles tablets and tvs. Executed seamless migration from PHP to Node.js on a serverless platform. Efficiently managed multiple cloud providers including AWS, Azure, and Google Cloud. Integrated AI services into conversational AI backend, enhancing functionality. Ensure product quality by automation testing.
Web developer
Localhost s.r.o2015 - 2016
Successfully implemented AngularJS and Progressive Web App (PWA) technologies, enhancing the company's web development capabilities. Led the frontend development of two projects, Chitbar and FindDop, delivering exceptional user experiences and robust functionalities. Skillfully tackled the significant challenge of integrating JWT authorization flow into the projects, ensuring secure and seamless user authentication. Collaborated closely with cross-functional teams to gather requirements, develop user-friendly interfaces, and meet project deadlines. Utilized agile methodologies to streamline development processes and optimize overall efficiency.

Testimonials

Peter L.

Sudolabs

Verified Testimonial

A highly reliable and skilled engineer who consistently delivers quality work. He brings a positive attitude to the team and can be trusted to handle challenges with professionalism and care.

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