Hello, I'm Jacob — a data analyst and front-end developer. I combine strong analytical thinking with modern web technologies to build tools, dashboards, and applications that are both insightful and user-friendly. My work focuses on turning data into meaningful solutions while delivering clean, scalable interfaces using the React and Next.js ecosystem.
About me
I started my career with a background in management and analytics, where I developed a strong passion for problem-solving and data-driven thinking. Over time, that interest naturally expanded into software development — I wanted not only to analyse systems, but also to build them.
Today, I focus on front-end development and continuing to strengthen my data analysis skills. This combination helps me create applications that are clean, scalable, and aligned with real business needs. My core stack includes React, Next.js, and TypeScript, and I’m always exploring new tools that improve the way I build.
When I'm not coding, I'm usually watching F1, go-karting, or doing anything motorsports related.
My Projects
A modern contact management tool enabling professionals to organize, filter, and track relationships. Features tagging, grouping, and an integrated activity log for a seamless, scalable workflow.
- React
- shadcn
- tailwind
- typescript
- zod
- recharts
- hook form
- sonner
- framer-motion
- date-fns
- AUTH
- supabase
An internal management system for staff to oversee bookings, cabins, and users. Includes dashboards, check-ins, payment verification, and activity tracking, ensuring smooth operations and guest satisfaction.
- Next.js
- Auth.js
- Server Actions
- SSG
- Moder Hooks
- Supabase
A guest-facing booking platform showcasing cabins, prices, and real-time availability. Customers can easily browse options, book stays, leave personalized notes, and manage their reservations, all through a smooth, intuitive, and fully mobile-friendly experience.
- React
- React Query
- Redux
- Styled Components
- Supabase
and more...
My skills
- HTML
- CSS
- SASS
- Tailwind
- Styled Components
- Material-ui
- JavaScript
- TypeScript
- React.js
- React Query
- React Router
- Redux
- Redux Toolkit
- Next.js
- Node.js
- Supabase
- Framer Motion
- Git
- SQL
- PowerBI
- Prisma
- Zustand
My experience
Lecturer in Statistics and Data Analysis
Doha, Qatar 🇶🇦
Delivered lectures on complex statistical topics, preparing students for exams. Utilized tools like Python, R, and Excel in teaching, developing students' analytical and problem-solving skills.
July 2024 - December 2025Freelance & Front-End Developer
Leicester, UK 🇬🇧
As a freelance and in-house developer, I created and maintained web applications for a B2B startup. I successfully delivered high-quality projects using technologies like React, Next.js, Redux, and Tailwind, directly improving the user experience and service offering.
June 2023 - November 2025Data Analyst
Ashby-de-la-Zouch, UK 🇬🇧
Promoted to Data Analyst, where I developed and implemented data-driven reports in Power BI and Excel. These reports provided actionable insights that significantly improved company KPIs, including delivery time and fleet utilization.
June 2022 - May 2024Transport Coordinator & Fleet Management
Manchester, UK 🇬🇧
Managed and optimized a fleet of 150 drivers, serving as the main point of contact for clients. I leveraged data analysis to make strategic decisions that significantly improved efficiency, customer satisfaction, and fleet utilization.
Sept 2020 - May 2022Education
Manchester, UK 🇬🇧
I hold a Bachelor's degree in International Business Management and a Master's in Data Analysis from Manchester Metropolitan University. I have also completed numerous bootcamps to specialize in technologies such as React, Next.js, Redux, and TypeScript.
2015 - 2018 (BA) & 2019 (MA)Contact me
Please contact me directly at Slojkowski33@gmail.com or through this form.