You will get Java Backend & Full-Stack Developer | Spring Boot · DDD · Automation
Project details
You'll get a solid, scalable web solution built by a developer who treats every project like a product — not just a task to close.
I'm Mateusz, founder of LokHit Studio. I specialize in Java, Spring Boot, and hexagonal architecture on the backend, paired with clean, responsive frontends and smart automation where it saves time and reduces errors.
Whether you need a landing page, a full business website, or a complex system with integrations and custom backend logic — I bring enterprise-level thinking with freelancer flexibility. No corporate overhead, no cutting corners.
Every delivery includes clear structure, documented code, and a result you can actually build on.
I'm Mateusz, founder of LokHit Studio. I specialize in Java, Spring Boot, and hexagonal architecture on the backend, paired with clean, responsive frontends and smart automation where it saves time and reduces errors.
Whether you need a landing page, a full business website, or a complex system with integrations and custom backend logic — I bring enterprise-level thinking with freelancer flexibility. No corporate overhead, no cutting corners.
Every delivery includes clear structure, documented code, and a result you can actually build on.
Programming Languages
HTML & CSS, JavaScript, JavaCoding Expertise
Cross Browser & Device Compatibility, Security, DesignWhat's included
| Service Tiers |
Starter
$150
|
Standard
$500
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 30 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 3 | 7 | |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$234 - $500
Additional Revision
+$15
Additional Page
(+ 2 Days)
+$10
Source Code
+$100About Mateusz
Senior Java Backend Developer | Spring Boot - Microservices - Kafka
Krakow, Poland - 5:50 am local time
My core stack is Java (Spring Boot, 8–17), Python (FastAPI), Scala, Kafka, PostgreSQL, and Docker. I've shipped production systems for NBB Bank, Eviden/Atos Group, and Mavoco — ranging from financial CRM platforms to IoT data pipelines. I understand what it means to build for compliance, auditability, and long-term maintainability, not just for a demo.
Right now I'm building Synaptix — an industrial IoT platform combining real-time machine telemetry (Apache Kafka), predictive maintenance (RUL algorithms), and intelligent document processing (OCR + NLP) in a microservices architecture. Synaptix was selected for Stage II of the ORLEN Skylight Accelerator — one of 40 projects chosen from over 900 applicants.
Beyond pure backend, I work across the full stack when needed: Next.js + TypeScript on the frontend, data lakehouse architecture for streaming analytics in the financial sector, and AI/LLM integration for domain-specific applications. I also hold a degree in zootechnics with hands-on veterinary practice experience — useful when building medical or diagnostic systems where domain knowledge matters as much as the code.
I work with DDD-based architecture, proper test coverage, clear documentation, and regular client updates. Available for both fixed-price projects and hourly contracts.
If you're building something that needs to scale, handle real data, or integrate AI into a serious production environment — let's talk.
Steps for completing your project
After purchasing the project, send requirements so Mateusz can start the project.
Delivery time starts when Mateusz receives requirements from you.
Mateusz works on your project following the steps below.
Revisions may occur after the delivery date.
2. Client get proposal
I will send short descriptive proposal for solution