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You will get Spring Boot login and security working correctly
Project details
I resolve Spring Boot authentication and JWT configuration issues in production systems.
If your login flow is failing, returning 401/403 responses, or your token handling is inconsistent, I will identify the root cause, apply a correct fix, and verify the full authentication flow end to end.
You’ll receive a stable solution, a clear explanation of what was wrong, and confidence that the security setup behaves as intended.
If your login flow is failing, returning 401/403 responses, or your token handling is inconsistent, I will identify the root cause, apply a correct fix, and verify the full authentication flow end to end.
You’ll receive a stable solution, a clear explanation of what was wrong, and confidence that the security setup behaves as intended.
Programming Languages
JavaWhat's included
| Service Tiers |
Starter
$20
|
Standard
$60
|
Advanced
$90
|
|---|---|---|---|
| Delivery Time | 1 day | 1 day | 2 days |
Number of Revisions | 0 | 1 | 2 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments | - |
Optional add-ons
You can add these on the next page.
Priority Delivery (same day)
+$30
Review + improve your Spring Security config
+$40Frequently asked questions
About Vasilis
Senior Java & React Engineer | Fast Reliable SaaS MVPs (API/UI/Deploy)
Athens, Greece - 1:47 pm local time
If you need an MVP or a specific feature delivered quickly and cleanly, I’m your developer.
What I deliver
- Booking, scheduling, and subscription apps (with Stripe payments)
- CRM-style tools: pipelines, contacts, notes, follow-ups
- Internal dashboards and admin panels
- API integrations (payments, transport, data providers)
Tech stack
Backend: Java, Spring Boot, REST APIs, Postgres, JWT auth
Frontend: React, TypeScript
DevOps: Docker, Linux servers, Caddy/nginx, DigitalOcean
How I work
- Clear scope first (MVP or small feature)
- Fast iterations, async communication (EU timezone)
- Deliverable comes deployed, documented, and easy to maintain
Examples
- BusCape – Online bus ticketing platform (startup)
- GymFlow – Class booking + Stripe payments (demo)
- ClientTrack – CRM pipeline + activities + proposals (demo)
If you need something built end-to-end, or a specific backend/front-end feature delivered right, send me a short message. I’ll give you a concise plan and a straightforward quote.
Steps for completing your project
After purchasing the project, send requirements so Vasilis can start the project.
Delivery time starts when Vasilis receives requirements from you.
Vasilis works on your project following the steps below.
Revisions may occur after the delivery date.
Review your code and issue description
Set up the project locally and reproduce the problem if needed
Identify the root cause
Inspect Spring Security / JWT configuration and logs