Security & Performance Engineer (Onion / Fintech)

Budget: 4800 EUR Deadline: 10 days

Good day. I would like to clarify:
1. What stack does the platform use?
2. What tools for load testing and pentesting do you expect to use?
3. Is only a security assessment with a report needed, or is there also a requirement for subsequent remediation of identified vulnerabilities?
4. Is a testing environment provided, or are the works conducted on the live infrastructure?
5. What are the deadlines for the project and the expected scope of work?

Budget: 4800 EUR Deadline: 18 days

Hello, Alexey!

Regarding the task, my profile is: load testing of web applications and pentesting with the preparation of a technical report, which highlights weak points and what to address first. I work specifically with network/anonymity infrastructure and safe architecture issues.

To correctly assess the scope and start working "in the clear," I need from you:
1. Written permission for testing (scope of work / authorization). For pentesting, this is a mandatory condition — a serious specialist does not start without the official sanction of the platform owner. This is in the interest of both parties.
2. What platform and jurisdiction, at least in general terms — this affects the threat model and legal framework of the work.
3. Target load indicators (expected simultaneous sessions/requests) and what we consider "stability."

Regarding the content: load test (finding the degradation point, behavior under peak and overload) + pentest (OWASP vectors, configuration, anonymous layer infrastructure) + report with risk prioritization and specific recommendations.

I work in stages through a Secure Deal — this protects both parties.

The project budget (4800 EUR) is a working guideline; I will provide a detailed breakdown by stages after receiving answers to points 1-3. Timeline — after agreeing on the scope (approximately 2-3 weeks for the full cycle: load + pentest + report). Expand

Budget: 4800 EUR Deadline: 14 days

We already have a nearly ready methodology and a set of checks for fintech platforms - it can be quickly adapted for an onion service, go through security, load testing, and reporting. We can discuss the details here, I'm available ))

With a budget of 4800 EUR, we can fit a basic audit within 10-14 working days - pentest of the web part, checking the onion infrastructure, load scenarios, and a final technical report with priorities.

We can keep it simple at the start - first, we will agree on the perimeter, acceptable load windows, and test stop rules, then separately check business logic, authorization, payment scenarios, resilience to overloads, and typical attacks on the web application.

An important point - we only work with written permission for testing and a clear list of assets; otherwise, it’s easy to go off track in such a task, and we need to proceed carefully and verifiably.

From you, we need access to the test or production environment, a list of roles, critical user scenarios, load limits, and the report format for the team.

- Please clarify, are we only checking the web application in the onion network or also the regular infrastructure, API, and payment callbacks?
- Is there a test stand and an acceptable load in requests per second, or do we need to start with cautious profiling?

Similar cases of complex platforms include Ingello:
- https://business.ingello.com/platforma - corporate platform with roles, logic, and process management
- https://business.ingello.com/forma-bpm - complex process system where stability, access, and reporting are important
- https://business.ingello.com/vorfahr - indirectly close in automation and technical architecture for quick launch

The main profile for FLH - https://systems-fl.ingello.com Expand

Budget: 4800 EUR Deadline: 30 days

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Why choose me?
✔️ Fast and quality execution: Your tasks will be completed on time and with impeccable quality.
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Let's collaborate and create something amazing together! Expand

Budget: 4800 EUR Deadline: 10 days

Hello

I have experience in security testing and performance validation of web applications including load testing and vulnerability assessment for complex backend systems

I can support your fintech platform on the onion network by evaluating resilience under stress conditions identifying performance bottlenecks and assessing overall security posture in a controlled and professional manner

My focus is on understanding system behaviour under load ensuring stability under traffic spikes and validating that security controls are correctly implemented across the application layer and infrastructure

I also prepare clear technical reports that explain findings risks and recommendations in a structured way that engineering teams can act on quickly

I am comfortable working with anonymous network environments and secure architectures while maintaining strict professionalism and confidentiality throughout the engagement

Thanks, Hanh Expand

Budget: 4800 EUR Deadline: 5 days

Hello. I can take on the task of conducting a security and performance audit of the onion/fintech platform: I will perform load testing, check the service's resilience to overloads and typical attacks, conduct a pentest of the web part within the agreed access and safe scenario, and separately review the architecture, network risks, and weak points in the infrastructure. In the end, I will prepare a clear technical report with identified issues, severity levels, evidence, and specific recommendations for remediation, so that you receive not just a list of vulnerabilities, but a clear plan for enhancing the security and stability of the platform.

Budget: 4800 EUR Deadline: 14 days

Hello.

I am interested in your project.

I have experience in web application analysis, performance testing, working with Linux servers, and researching system behavior under load.

To assess the project, I would like to clarify:
• the scope of the functionality to be tested;
• the availability of a test environment;
• the expected scenarios for load testing;
• the format of the final report;
• the allowed scope of security checks.

Based on the results of the work, I can provide:
• a report on identified issues;
• a description of potential risks;
• recommendations for addressing vulnerabilities and improving fault tolerance;
• results of load testing with metrics and conclusions.

I am ready to discuss the project details and the scope of work. Expand

Budget: 4800 EUR Deadline: 7 days

Good day!

I have experience in load testing and Fintech. I can complete the task.

Budget: 4800 EUR Deadline: 14 days

I have practical experience in conducting penetration tests of web applications and server infrastructure, as well as load testing of services. I have worked with Tor infrastructure and understand the specifics of onion services, including routing, anonymity, and attack surface assessment.

For testing, I use both manual techniques and professional security analysis tools, including Acunetix and other solutions for vulnerability scanning and web application security checks.

I can perform:
• load testing of the onion platform;
• architecture analysis and potential attack vectors;
• checks for common web vulnerabilities and configuration errors;
• assessment of the service's resilience to overloads and failures;
• preparation of a detailed technical report with risks and recommendations for addressing identified issues.

To start the work, it is necessary to agree on the scope of testing and obtain confirmation from the resource owner to conduct the assessment.

I am ready to discuss the project details and the format of the final report. Expand

Budget: 4800 EUR Deadline: 10 days

Hello! I am ready to complete this task.

I have experience in testing web applications, security analysis, and preparing technical documentation. I will conduct an assessment of the platform's resilience to loads and analyze its security within the agreed scope of work. Based on the results, I will provide a detailed technical report describing the identified risks and recommendations for their mitigation.

I approach security issues responsibly, maintain confidentiality, and support transparent communication at all stages of the project.

I am ready to discuss the details and reporting requirements.