: Lead Scripter / Junior
: LUAU, C#
: 3 to 4 years.
: Dm me for active games I've worked on and sold to studios
: Everyday
: I'm verified on Roblox with a blue checkmark, if it helps.
[What I'm looking for]: Team of devs or a dev to work closely with, sharing ownership or good pay, whatever works for you.

I usually go with a VSCode, Rojo workflow, might incorporate AI if we need to reach goals fast. I know how to use it well along with my scripting.
I can work with existing codebase and figuring out bugs.
I might not be in the server when you read this, just reach out if you're interested

: Backend Developer — Java / Spring Boot, API bug fixing & REST API development
: Java 17, SQL, TypeScript, JavaScript (Vue 3)
: 7 months, production ERP (Java/Spring Boot, incident resolution, SQL diagnostics)
: Multi-tenant financial management API — 34 endpoints across 7 controllers, RBAC with 5 roles, per-company tenant isolation, JWT in HttpOnly cookies, Flyway migrations, soft delete for auditable history. github.com/MatheusCristophi/ERP-Financeiro-Backend · github.com/MatheusCristophi/ERP-Financeiro-Fontend. Production ERP: log and data-driven diagnosis, root-cause tracing, fix and ship. Commit explains what was actually wrong, not a try/catch on the symptom.
: Weekdays 18h–23h UTC-3 (overlaps US East afternoons) and weekends, up to 25h/week. Reply within 3h. Async and text-first — written English only, so nothing gets lost in a call.
: Fixes: 500s, NullPointer, unhandled exceptions, bogus 401/403, JWT and Spring Security misconfig, broken role checks, N+1 and missing indexes, data repair via SQL (PostgreSQL, Firebird). Builds: REST APIs with Spring Security, JWT, RBAC, Flyway migrations, DTO layer, third-party integration, Docker, JUnit/Mockito. Written scope and deadline before any code; fixes 50% on approval / 50% on delivery, builds 40/40/20. Diagnosis $30–40/h (1h min, quote before changes). APIs from $350. github.com/MatheusCristophi · linkedin.com/in/matheuscristophi · DM or matheuscr909@gmail.com

: Backend Developer — Java / Spring Boot, API bug fixing & REST API development
: Java 17, SQL, TypeScript, JavaScript (Vue 3)
: 7 months, production ERP (Java/Spring Boot, incident resolution, SQL diagnostics)
:
- Multi-tenant financial management API — 34 endpoints across 7 controllers, RBAC with 5 roles, per-company tenant isolation, JWT in HttpOnly cookies, Flyway migrations, soft delete for auditable history. github.com/MatheusCristophi/ERP-Financeiro-Backend · github.com/MatheusCristophi/ERP-Financeiro-Fontend
- Production ERP: log and data-driven diagnosis, root-cause tracing, fix and ship. Commit explains what was actually wrong, not a try/catch on the symptom.
: Weekdays 18h–23h UTC-3 (overlaps US East afternoons) and weekends, up to 25h/week. Reply within 3h. Async and text-first — written English only, so nothing gets lost in a call.
: Fixes: 500s, NullPointer, unhandled exceptions, bogus 401/403, JWT and Spring Security misconfig, broken role checks, N+1 and missing indexes, data repair via SQL (PostgreSQL, Firebird). Builds: REST APIs with Spring Security, JWT, RBAC, Flyway migrations, DTO layer, third-party integration, Docker, JUnit/Mockito. Written scope and deadline before any code; fixes 50% on approval / 50% on delivery, builds 40/40/20. Diagnosis $30–40/h (1h min, quote before changes). APIs from $350. github.com/MatheusCristophi · linkedin.com/in/matheuscristophi · DM or matheuscr909@gmail.com

Java / Spring Boot — API bug fixing & REST API development

500s, hanging endpoints, slow queries, broken auth? I read the logs, trace the flow and fix the root cause — not a try/catch on the symptom.

Production ERP background, where downtime costs money by the minute. Diagnosis through logs and data, fix, and a commit that explains what was actually wrong.

Fixing & maintenance:
- 500s, NullPointer, unhandled exceptions
- Endpoints returning bogus 401/403
- JWT and Spring Security misconfiguration, broken role checks
- N+1 queries, missing indexes, slow endpoints
- Data inconsistency repair and recovery via SQL (PostgreSQL, Firebird)

Building:
- REST APIs with Spring Security, JWT and RBAC
- PostgreSQL with JPA/Hibernate, versioned Flyway migrations, DTO layer
- Third-party API integration, Resilience4j rate limiting
- Vue 3 + TypeScript frontend wired to your API
- Docker environment, JUnit/Mockito tests

How I work:
- Written scope and deadline before a single line of code — in and out of scope, in writing
- Fixes: 50% on quote approval, 50% on delivery. Builds: 40% on approval, 40% at first working deploy, 20% on delivery
- Everything over text, async-friendly. Written English only, so nothing gets lost in a call.
- Repo with clean commits and README, reply within 3h

Overlaps full US business hours (UTC-3, until 6pm local).

Projects: multi-tenant financial API (34 endpoints, RBAC 5 roles, JWT HttpOnly cookies, Flyway, soft delete).

Java 17, Spring Boot, Spring Security, JPA/Hibernate, PostgreSQL, Firebird, Flyway, Resilience4j, Vue 3, TypeScript, Docker, Git.
github.com/MatheusCristophi · linkedin.com/in/matheuscristophi · DM or matheuscr909@gmail.com

Diagnosis $30–40/h (1h min, root cause and fixed quote before any change). APIs from $350, quoted per scope. Send the endpoint list or the stack trace and I'll come back with quote and deadline.

Hello, I'm interested in the graphic design opportunity. Kindly reach out to me on Telegram @physceX, as I'm currently unable to send you a DM. I'd love to discuss the job and the possibility of working with you long-term. Thank you.

: Web Developer
: 3 years building websites
[Education]: Second-year undergrad at Texas Tech
[Previous Work]: (These are demos)
https://cognir-research.web.app
https://sandbox-built.web.app
[What I offer]: Simple, clean websites for $59 (Amazon digital gift card)
[How it works]:
You tell me what you need
I build the full site
I send you screen recordings of the entire working site so you can review everything
You only pay if you’re happy with it
If you’re not happy, no payment, no pressure
Once paid, I handle deployment + domain registration. The site goes live and stays up unless you later ask me to take it down
: Flexible, can start quickly
[Other]: I keep things straightforward. No fluff, no pressure. Just a clean site you can actually use.
DM me if you want one.

: AI Developer & Automation Engineer
: Python, JavaScript, SQL (FastAPI, LLM integrations, n8n, Three.js)
: 3+ Years (Builder Mindset with 91+ public GitHub repos)
: Custom AI Agents with RAG (ChromaDB), n8n Workflow Automations, Data Extraction/OCR pipelines, and Interactive 3D WebGL portfolios.
: Flexible / 20-30 hrs per week (CET Timezone - Italy)
: I focus on No-Bullshit engineering. I build functional products tailored to your business logic. Total transparency: if an AI model can't do what you want reliably, I will tell you upfront. Bonus: I take on one small FREE automation/script IF it's a unique AI challenge I can learn from (Paid commissions always come first). Payment via PayPal / Crypto / SEPA. DM me with your idea!

: AI Developer & Automation Engineer
: Python, JavaScript, SQL (FastAPI, LLM integrations, n8n, Three.js)
: 3+ Years (Builder Mindset with 91+ public GitHub repos)
: Custom AI Agents with RAG (ChromaDB), n8n Workflow Automations, Data Extraction/OCR pipelines, and Interactive 3D WebGL portfolios.
: Flexible / 20-30 hrs per week (CET Timezone - Italy)
: 
I focus on No-Bullshit engineering. I build functional products tailored to your business logic, not just random scripts. Total transparency: if an AI model can't do what you want reliably, I will tell you upfront.

*Bonus:* I take on one small FREE automation/script IF it's a unique AI challenge I can learn from. Paid commissions always come first. DM me with your idea!

Payment: PayPal / Crypto / SEPA Bank Transfer.

# HIRING - Professional Graphic Designer
I need QUICK SKILLED INDIVIDUAL, to work with me long term on document creation.
the jobs sha'll not take you more than 15/20mins.

# DM preferably via Telegram @L0wkeyDan

Loading posts
Failed to load posts. You can retry.