Repair of Node.js application (backend + frontend + password reset) VPS, NGINX, PM2

Budget: 762 PLN Deadline: 4 days

Good day!

I have considerable experience with Node.js/Express and configuring VPS with Nginx + PM2, so I don't see anything complicated here. On a daily basis, I lead a team at Oria Agency, and fixing existing applications is basically my everyday routine. I would be happy to take a look at the project via SSH and quickly diagnose what is not working with the login, password reset, and email sending.

I would be glad to help, please contact me.
Sincerely,
Andriy Voznyak

Budget: 850 PLN Deadline: 1 day

✋ Hello! We are the IT company dZENcode.

We implement auditing and stabilization of Node.js (Nest.js/Express) applications: login, password reset via token, SMTP delivery, admin panel, API protection, Nginx/PM2 configuration, and tests, based on the team's experience, best practices, and our own developments.

What token mechanism is currently used - JWT or one-time tokens?
Which SMTP or email provider do you use, are SPF/DKIM configured?

You can find detailed information about our services and rates on our website: Freelancehunt
Take a look – we will discuss the details of the work further, write when you are ready.

The final cost is determined only after clarifying the scope and requirements.

___________________
Sincerely,
Manager of dZENcode

Our strengths:
💎 10+ years providing IT services: Outsourcing, Outstaffing
🔥 90+ in-house specialists
🚀 Projects "from scratch" and for support
⚙️ SLA and post-production support
✅ Contract with the company, guaranteed result!
🔥 250+ public reviews since 2015. Expand

Budget: 440 PLN Deadline: 3 days

Hello.

I have experience debugging and stabilizing existing Node.js / Express applications, including authentication flows, password reset systems and server deployments on VPS.

From your description, the issues likely sit in three areas:

* authentication / session or token validation
* password reset flow (token generation, expiration or verification)
* email delivery configuration (SMTP or API integration)

My typical approach for projects like this:

1. Full diagnostics of the application

* review backend authentication logic
* inspect login endpoints and token handling
* check frontend ↔ backend communication

2. Password reset flow repair

* secure token generation
* proper validation and expiration
* verification of reset links

3. Email delivery debugging

* check SMTP/API configuration
* test mail transport and server restrictions
* ensure reliable email sending

4. Server-side verification

* check Node service under PM2
* inspect Nginx reverse proxy configuration
* review logs and error handling

5. Security improvements

* input validation
* endpoint protection
* basic application hardening

After the audit I will provide a clear list of issues and fix them step-by-step.

I can start immediately after receiving SSH access.

Estimated time: 2-3 days
Estimated budget: $120-$180 (after initial diagnosis) Expand

Budget: 9999 PLN Deadline: 10 days

Hello, Marcin

I can implement it from scratch, fast delivery, good results.

PM is open.

Budget: 1300 PLN Deadline: 8 days

I can handle this.

I have experience in backend and web systems (Node.js, PHP, Python), I have worked on fixing existing projects, integrations, and systems with logging, payments, and APIs. I feel comfortable debugging and bringing applications to a stable state.

I will handle logging and password reset — diagnosing endpoints, tokens, validation, and flow between the frontend and backend.

Mailing is also no problem — I will check SMTP / API, logs, deliverability, and fix the sending.

Security: I will check authorization, endpoints, data validation, and basic security to ensure there are no holes.

Admin panel — I can create accounts, roles, and basic management.

Server: I work on Linux VPS, I manage Nginx, PM2, backend configuration, and deployment, so I will check everything end-to-end.

Finally, I will conduct tests: logging in, password reset, emails, stability.

I can start immediately and begin with a quick audit + a list of issues to fix. Expand

Budget: 6000 PLN Deadline: 7 days

Hello!

I am ready to join your project and conduct a full audit followed by fixing the functionality and security of the application.
My experience
I am a backend/full-stack developer with over 4 years of experience:
Node.js (Express, NestJS)
REST API, authorization, working with tokens
PostgreSQL, MongoDB
Docker, VPS (Linux), Nginx, PM2
Integrations (SMTP, Twilio, payment systems)
Experience working with real production projects (including high-load services)
First, I will conduct a quick audit (4–6 hours) to:
identify key issues
assess the scope
propose a clear plan for fixes
After that, we will gradually close all tasks. Expand

Budget: 1200 PLN Deadline: 4 days

hello,

this task looks less like a simple set of edits and more like stabilization of an existing node.js application across several connected areas: authentication, password reset flow, email delivery, and server configuration.

that is exactly the kind of work i can help with.

from your description, the issues are likely sitting across 3 layers at once:

backend logic (login, reset token generation/validation, authorization)

frontend ↔ backend interaction

server/runtime configuration on vps (nginx, pm2, env, smtp)

in this kind of project, the right approach is not to patch symptoms one by one, but to first audit the flow end to end, identify where it breaks, and then fix it cleanly:

login diagnostics and repair

password reset flow and token handling

email sending and delivery configuration

admin account and permissions

api/input security hardening

nginx / pm2 / vps verification

final end-to-end tests after fixes

i have experience with node.js / express applications on linux vps and with debugging production issues where the problem is partly in the code and partly in the deployment configuration.

my estimate for this scope is 1200 pln and around 4 days.

one important point before starting: is the current reset/login flow based on jwt, session cookies, or custom tokens? Expand

Budget: 2400 PLN Deadline: 7 days

Good morning,

I have reviewed the assignment and I see a classic set of problems that I know well from my own practice: broken login endpoints, inconsistent password reset, and SMTP configuration that "leaves" the server but never reaches the inbox.

The estimate for the comprehensive execution of the scope: 2,400 - 3,200 PLN net, deadline: 5-7 working days from obtaining SSH access.

I start with an audit of the code and server logs, then I sequentially fix: logging, password reset, email deliverability, API security, and the admin panel. I complete each stage with a test before moving on.

I have been fixing and securing Node.js/Express applications on VPS for several years, I know Nginx and PM2 from a production perspective, not just from documentation. Selected projects from my portfolio can be seen at soft-synergy.com/portfolio.

I would be happy to schedule a short online meeting during which we will discuss the project details directly, and after the conversation, you will receive a detailed technical report and a binding offer.

Antoni Seba
soft-synergy.com Expand

Budget: 1000 PLN Deadline: 3 days

Hello, can I take a look at the code first? I can start right away.

Budget: 1107 PLN Deadline: 5 days

ready to help you out with this

will send you previous work in chat - to make sure we match

Budget: 1234 PLN Deadline: 12 days

Good morning!
I have extensive experience working with Node.js (Express) and fixing existing web applications — both backend and frontend (JavaScript/HTML).
I have worked with Linux VPS servers, Nginx, PM2, and email delivery systems (SMTP / API).
I specialize in diagnosing and improving key features such as login, password reset, user authorization, as well as strengthening application security.
I can also easily perform final tests and verify server configuration.
Projects I have worked on:

https://rstays.com/ — full backend (Node.js Fastify, payments, AI, chat, Firebase Auth, mobile + web version).

https://ai-desk.ai/ — backend built from scratch (Node.js, payments, roles, AI).

https://seetruth.app/ — backend of a mobile application (Node.js Express).

GitHub: https://github.com/axbuglak/
I would be happy to analyze the application, propose a repair and security plan, and provide a detailed estimate after a brief review of the project.

Sincerely,
Alexey Buglak Expand

Budget: 1500 PLN Deadline: 5 days

Hello!

My name is Roman, I am a Full-stack developer with 4 years of experience (Node.js/Express). I looked at your task - the problem is not only in the code, as I understand, but also in the connection "application - mail server - Nginx configuration."

Here’s how I can help with your issues:

Auth & Security Diagnosis: I will analyze the logic of JWT/sessions and check token validation. I will implement protection against Brute-force and check the Authorization header at the Middleware level.

Email Recovery: In addition to checking SMTP in Node.js, I will audit the DNS records of your domain (SPF, DKIM, DMARC). Without this, Gmail and Outlook will throw your emails into spam (Gmail/Outlook).

VPS Stabilization: I will optimize the Nginx configuration (reverse proxy) and set up resource monitoring in PM2 to prevent backend crashes.

Admin Panel: I will create a simple and reliable admin panel, without any heavy frameworks, so you can easily edit content.

Why choose me:

Experience with Legacy: I can understand what has already been written, I won’t rewrite everything from scratch.

Comprehensive Approach: I set up not only JS but also the server environment (Linux/Nginx).

Security above all: Before starting work, I always make a full backup of the database and project files.

Estimated time: 3-5 days (depending on the volume of edits in the admin panel).

Bonus for you: After completing the work, I will provide a short "Security Checklist" for your server to avoid similar security issues in the future.

I am ready to start the audit today. I would be happy to discuss the details in private messages! Expand

Budget: 1800 PLN Deadline: 7 days

Hello,

I have reviewed the assignment — it is a typical case where the application works, but it requires a solid diagnosis and addressing several key areas at once: login, password reset, emails, security, and server configuration.

Estimate: 1800 - 2500 PLN net
Deadline: 5-7 working days

I start with an audit of the code and server configuration (SSH, Nginx, PM2) to quickly locate the sources of the problems, rather than treating the symptoms. Then I fix each area covered by the assignment and finish with end-to-end testing — login, password reset, email deliverability.

I regularly carry out similar projects — repairs, audits, and securing Node.js/Express applications on VPS is one of my main areas. I know where errors most often occur in this type of stack and I work efficiently, without unnecessary delays.

I would be happy to schedule a short online meeting — it is not just a conversation, but a specific consultation, after which you will receive a detailed report assessing the state of the application and a binding offer. You can find some of my projects here: https://soft-synergy.com/portfolio

Jakub Czajka
https://soft-synergy.com Expand

Budget: 2000 PLN Deadline: 30 days

Hi! I can complete your project. I have experience. Write to me, let's talk.

Budget: 75 PLN Deadline: 1 day

Hello, I have the appropriate experience in the required technologies. Please contact me privately, I am able to complete all tasks, I will start from today. I am happy to help!

Budget: 2000 PLN Deadline: 5 days

Good morning,
I have experience in repairing existing Node.js/Express applications on VPS (Linux, Nginx, PM2) and I can quickly restore key features and improve security.

What I will do:

diagnostics and repair of user login,
repair of the password reset process (tokens, validation, reset link),
repair of email sending (SMTP/API, logs, deliverability),
basic security hardening of the API and authorization,
creation of an administrator account and granting permissions,
verification of VPS, Nginx, and PM2 configuration,
final tests (login, password reset, email, stability).

I can start immediately after receiving SSH access and project files. Expand

Budget: 1000 PLN Deadline: 3 days

Good day.

I am interested in your project. I am a Full-Stack JavaScript developer with approximately 5 years of experience, with a primary stack of Node.js (Express), JavaScript, MongoDB, REST API. I have experience working on both developing new systems and analyzing and fixing existing projects, including issues with authorization, security, and server configuration.

In similar tasks, I usually work in the following order:
Application audit
checking authorization logic
analyzing login / reset password endpoints
checking token handling
checking frontend ↔ backend communication
Server-side diagnostics
analyzing Node.js / PM2 logs
checking Nginx configuration
checking application operation on Linux VPS
Functionality fixes
login and authentication flow
reset password (token generation and validation)
fixing SMTP / email delivery
Security
checking JWT / session logic
protecting API endpoints
data validation
basic security best practices
Final testing
login
password reset
email sending
server stability
I also have experience with:
Linux VPS
Nginx
PM2
SMTP / email API
JWT authentication
debugging production Node.js applications
I am ready to quickly join the project, conduct an audit, and propose solutions.
If possible, please send:
the project structure or Git
a brief description of the issues occurring during login / email
access to staging or logs
After that, I will be able to quickly assess the scope of work.

Best regards,
Ruslan Zotsenko
Full-Stack JavaScript Developer (Node.js) Expand

Budget: 900 PLN Deadline: 1 day

Hello. I understand the problem. I have rich experience with node.js, so I think that my expertise will be helpful.

Budget: 1000 PLN Deadline: 1 day

Hello.
I have carefully reviewed your requirements.
Based on this review, I am confident that I can complete the current revisions in a short period of time and work with you to create a great result.
I would like to have the opportunity to discuss this in more detail.
Thank you.
Ifeoluwa.

Budget: 1000 PLN Deadline: 1 day

Hello.I have been working with Node.js for more than 8+ years.I'm ready to cooperate.

Budget: 5000 PLN Deadline: 10 days

Hi! I’m a Senior Full-Stack JavaScript Developer with 8+ years of experience working with Node.js, Express, VPS Linux, Nginx, and PM2.

I have experience debugging production Node.js apps and stabilizing systems on VPS environments.

I’m available to start immediately and can quickly diagnose the issues and provide fixes. Happy to discuss the details and review the project.

Best,
Jeo Vincent Carretas

Budget: 777 PLN Deadline: 7 days

Hello! I will complete your task quickly and efficiently.

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be happy to collaborate with you!

Budget: 100 PLN Deadline: 1 day

Good morning.

I can help with the analysis and repair of applications. I have experience working with Node.js, Express, Linux server configuration, and deployments with Nginx and PM2.

Budget: 75 PLN Deadline: 1 day

Good day.
I know Node JS and PM2 very well.
I write various tasks in Node JS + Express.
I can help fix errors.
I will specify the exact price and deadlines after checking the code.
If you have any questions, you can write to me in private messages.