James Kay

UI-UX Designer

SEO Specialist

Mobile App Developer

Senior Fullstack Developer

Telecom Advisory

James Kay

UI-UX Designer

SEO Specialist

Mobile App Developer

Senior Fullstack Developer

Telecom Advisory

Download CV Service Overview
About Me

Hello! I’m James Kay.

I am a UK-based senior full-stack developer and freelance consultant with over 12 years of experience building backend systems, APIs, mobile applications, admin panels, and cloud-supported platforms for international clients.

I focus on delivering reliable, scalable, and security-aware digital solutions across complex technical environments.

I am currently expanding my consultancy into telecom vulnerability intelligence and vendor-risk advisory, with a defensive focus on structured reporting, triage, and remediation planning.

My work combines deep engineering experience with analytical thinking to help organizations understand technical risk, improve system resilience, and make informed decisions.



My Technical Advisory focus is on combining 12+ years of full-stack development experience with structured
vulnerability-intelligence reporting for telecom-adjacent businesses.

  • Age: 33
  • Residence: UK
  • Freelance: Available
  • Address: Little Neston, UK
  • Experience
    • ​
    • 12+ Years Experience
    • 500+ Projects Delivered
    • Mobile + API + Cloud
    • UK-Based Consultant

Technical Advisory Focus

I combine 12+ years of fullstack development experience with structured
vulnerability-intelligence reporting for telecom-adjacent businesses.

Vendor Risk V
Vulnerability Intelligence
Remediation Planning
My Services
Mobile App Development (Flutter and React Native)

These steps will be followed in the development of the mobile application.

  • We'll talk about project details and required features so we're clear on what we're working on. (It may be a Zoom call or a chat.)
  • If you didn't design the UI/UX of your app, I will send you an offer for the UI/UX section.
  • I'll share a proposal that includes all the features discussed, the technologies being used, the scope of work, the approach, the budget, and the timeline (as discussed).
  • Begin the process of developing and delivering the application, stage by stage.
UI and UX Design (Web and App)

"Art" is not what you see but what you make others see.

-Edgar Degas.

Most website designers ignore the above sentence.

You can easily understand from their mock-ups that they don't care about the user's experience.

Users don't care about design when they don't know how to use your website.

I believe a good website pays attention to both, not just UI or UX. My mission is to pay attention to the UI and UX of your site.

Final file delivery:

  • Adobe XD, PSD, or Figma (I prefer Figma).
  • All images, fonts, icons, and source files
Site Speed Up (WordPress)

I have more than 8 years of experience working with WordPress and optimising websites, so I have a deep understanding of why your WordPress site is loading slowly and know the best method to speed up your site and optimise it to improve your Google insights.

Why is speeding up and optimising your website important?

  • Increase your Google insight.
  • Increase your SEO on Google.
  • Users choose faster sites, and slow sites have a negative effect on their opinion of your site.

My WordPress optimisation and speedup services:

  • Combine CSS/JS to reduce time load
  • Active lazy loading for images on your website
  • Optimise images and auto-optimise on new uploads.
  • Add a Cloudflare CDN to your site.
  • Enabling GZip Compression
  • Create static file caching
Website Fix (Laravel and WordPress)

I have worked at more than 100 sites, so I have good experience and knowledge about problems and issues and how to fix them. If you have any WordPress issues or errors on your site, I can help you fix them. And also, if you want to customise your WordPress theme, plugins like Woocommerce, and so on, I can develop them too.

My fix-and-customise WordPress website services:

  • Fix your website's HTML and CSS issues.
  • Fix your website's HTML and CSS issues.
  • Fix responsive problems and errors on your web site.
  • Fix your WordPress plugins and theme errors.
  • Fix any Woocommerce or Eccomerce issues on your WordPress website.
  • Customization and developing your theme and plugins in WordPress (let's discuss before placing the order)
  • Fix any bug, issue, or error in your WordPress website.
Website creation (Laravel and WordPress)

Your website design can accomplish your goals when it is tailored to meet your needs. Therefore, I suggest you hire a web designer who is a real expert in this area and has up-to-date programming skills.

My recommendation would be to use the WordPress content management system if you want to have a good and efficient web site at the lowest cost.

Type of website design:

  • Blog
  • ECommerce
  • Businesses
  • Directory
  • Photography
  • Health & Fitness
  • Food delivery website
  • Education
  • Real Estate
  • Membership Websites
  • Artist Portfolio

You can have all kinds of personal, corporate, store, news and information, service, real estate, etc. sites with the WordPress content management system and my current website design services.

By doing more than 200 different projects, I can offer the best for your business.

Onpage SEO

A major aspect of improving your ranking on Google is having a standard structure for your website, which is applied throughout the entire SEO of the website.

Here are the services you will receive:

  • Meta Titles
  • Meta Descriptions
  • Proper Keyword Research
  • H1, H2 and H3 headings tags
  • Image ALT Attribute and Title Implementations
  • Internal Linking
  • Search engine-friendly URLs
  • Broken Link Removal
  • I advise you to make further optimizations.
  • SEO report

On-page SEO is a good start to improving your Google ranking, but it's not enough.

You can do many other things to improve the search engine optimisation of your website,

Don't worry, we will advise you on your next step.

I will try my best to provide you with high-quality services.

Telecom Vulnerability Intelligence

Defensive vulnerability-intelligence and vendor-risk advisory for
telecom-adjacent businesses, including MVNOs, eSIM providers, mobiledata platforms, VoIP/SIP services, and cybersecurity teams.

These services are not:

  • unauthorized telecom testing
  • live network monitoring
  • exploit development
  • SS7 hacking
  • penetration testing without a written scope
Pricing
Popular
$ 25 hour
  • Small WordPress issues, errors, or customizations needed less than 1 hour of work time.
  • Convert XD or Figma designs to HTML
  • On-page SEO optimisation
  • I will optimise WordPress speed for Google page speed insights.
  • I will design a professional, modern, minimal logo for the company and business.
  • I will design a UI/UX landing page website with Figma or XD.
  • I will design an inspiration mobile app UI/UX prototype mockup on Figma.
  • I will create and fix a responsive WordPress website or landing page.
Premium
$ 45 hour
  • I will develop a responsive website using React JS.
  • I will fix bugs or develop websites using PHP, MySQL, and Laravel.
  • I will develop iOS and Android mobile apps using React Native and Flutter.
Clients
Client_1
Client_2
Client_3
Client_4
Satisfaction
James is clearly very talented and experienced. Hired to convert Figma to React which was executed to perfection with no issues. It makes a big difference when you have someone who knows what they are doing.. I would highly recommend James
ricoeurope
ricoeurope
Project Manager
Appreciate all of your hard work, Jame is a very talented and efficient programmer. He knew what we needed and he delivered more than what we asked him. Surely we have a complex project, but I’m sure he can finish the rest of the project in a timely manner. Looking forward to move on to our next phase. Thank you
bourmazdimd
bourmazdimd
Project Manager
Super fast delivery, great communication with James as usual. Would highly recommend his services!
jackfairhead88
jackfairhead88
Project Manager
James is fantastic at his work and always delivers. He's been a great support while working on a large e-commerce website. Thank you for ALL your help
carrie82
carrie82
Project Manager
absolutely amazing, I have never done this before, James took me through step by step and produced amazing artwork for my app. the timelines surpassed my expectations and produced really high end work. will defiantly be coming back. thanks so much for your help James
alexday104
alexday104
Project Manager
I have worked with several other freelancers in the past, but it always required multiple revisions and a lot of explanation to get my ideas across. However, working with James was a refreshing experience, as he understood my needs on the first try. His professionalism was top-notch, and I highly recommend him.
jamie_price_ng
jamie_price_ng
Project Manager
I recently ordered the service "I will design UI UX landing page website with figma or xd" and was blown away by the quality of the work I received. The designer was incredibly professional and communicative throughout the entire process, ensuring that all of my needs were met and that the final product exceeded my expectations. The design was visually stunning and intuitive, making it easy for users to navigate and interact with the website. I highly recommend this service to anyone looking for a top-notch UI/UX design for their landing page website. Thank you!
varrickmedia
Project Manager
Fun Facts
80 Albumes Listened
15 Awards Won
1 000 Cups Of Coffee
10 Countries Visited
Resume
Experience
Full-Stack Web Developer
2020 - Present
Full-Stack Web Developer
Fiverr Inc.

Since 2020, I've been working hard on Fiverr, and I'm
thrilled to say that I've made it big! In 2022, I rose to the
top of the ratings, and ever since then, I've had a blast
amassing reviews left, right, and centre. I'm talking over
1,000 reviews, and I've also finished over 1,000 tasks. I've made more than $100K USD only from Fiverr.

Full-Stack Web Developer
2019 - 2023
Full-Stack Web Developer
Freelamcer

I've been an active member of Freelancer.com since 2019 as a seasoned freelancer with over 100 large projects completed successfully and revenues exceeding 40K USD. In fact, because to my diligence and hard work, the platform recognised me as a preferred freelancer in 2021.

  • hich is why I choose the large assignments I take on carefully. I'm a talented and dedicated freelancer who takes pride in doing excellent work and going above and beyond for clients
Full Stack Engineer
Enter years
Full Stack Engineer
Gorrion - Full time / Poland - Hybrid

At Gorrion, a company founded in 2009, I worked as a Full-Stack Software Developer for three years. I contributed to various projects in Custom Software Development, Mobile App Development, Web Development, UX/UI Design, Application Testing, Cloud Consulting & SI, E-Commerce Development, and IT Strategy Consulting. My expertise included AWS, Node.js, React, Git, Agile methodologies, PostgreSQL, and MongoDB. I delivered high-quality solutions, focusing on React for front-end development and Node.js for scalable back-end applications. I also gained experience in mobile app development, e-commerce projects, and IT strategy consulting. Throughout my tenure, I used Git for version control and embraced Agile methodologies. Overall, I played a vital role in diverse projects, keeping up with emerging technologies and delivering successful software solutions7

Frontend Developer
2012 - 2015
Frontend Developer
Brimit - Full time / Netherlands - On-site
During my three years at Brimit, I worked as a front-end developer on diverse projects in CRM Consulting and SI, Web Development, and Unified Communications Consulting & SI. Collaborating with a talented team, I created user-friendly interfaces using HTML, CSS, and JavaScript. jQuery was instrumental in enhancing interactivity and DOM manipulation. I also utilized CSS Bootstrap to ensure responsive and visually appealing designs. It was a dynamic and enriching experience contributing to the success of various client projects.
Education
2008 - 2012
University of Liverpool
Liverpool City

Computer Science with Software Development (G610) is a pathway for those wanting to specialise in development, updating and widespread application of complex software.

Cutting-edge upskilling
Online Course
Udemy
  • The Ultimate React Course: React, Redux & More
  • NodeJS - The Complete Guide (MVC, REST APIs, GraphQL, Deno)
  • The Complete JavaScript Course: From Zero to Expert!
Skills
Overall
  • JavaScript
  • React JS
  • PHP
  • Wordpress
  • Git
  • Bootstrap
  • React Native
  • Flutter
  • Figma
Languages
  • English
Checklist
  • Data analysis
    90%
  • Collaboration
    75%
  • Adaptability
    85%
  • Critical thinking
    95%
Knowledge
  • Creative thinking
  • Problem-solving
  • Practical thinking
  • Teamwork
  • Excellent decision-making
  • Advertising services include
  • Communication
  • Adaptability
Works
Otere
Design
melli
Design
Wealthland
Design
REGENIV
Design
MGX BROKERS
Design
tripspecs
Design
heath
Design
Multintel Education
Design
tripco
Design
MERUS Adventure
Design
INVESTOR PRESENTATIONS
Design
Good Look
Design
TalentJet
Design
Maxfun
Design
SPACECHAIN
Design
BCTech
Design
BUMSONSEATS
WordPress
Granderson Des Rochers
WordPress
Krystal Blog
WordPress
ABODE
WordPress
VICTORIAN INSULATION
WordPress
MODISH FURNISHING
WordPress
GREENSTORY
WordPress
ROCKPOOL
WordPress
NEXUS TECHNOLOGY PROVIDER
WordPress
whealthy
WordPress
HSR Transport
WordPress
Tozman & Lenz
WordPress
CRYPTO CO
WordPress
Rhino Shrink Wrap
WordPress
Blog
August 20, 2023 A Web Developer’s Journey with Small Businesses

In the vast digital landscape, small businesses are the unsung heroes, each with a unique story waiting to be told….
August 19, 2023 SMART Freelancing

The SMART framework is commonly used to establish goals that are SMART (specific, measurable, attainable, relevant, and time-bound). Using the…
August 16, 2023 Freelancing: Challenges and Lessons

Working as a freelancer is a minefield of challenges. These challenges range from personal to interpersonal. From a personal perspective,…

NEW SERVICE

Telecom Vulnerability Intelligence & Vendor-Risk Advisory

Defensive telecom vulnerability intelligence for MVNOs, eSIM providers, mobile-data platforms, VoIP/SIP services, private-network businesses, and telecom-adjacent technology teams.

I help telecom-adjacent businesses understand known vulnerabilities, affected vendors, affected protocols, business impact, and remediation priorities.

This service is focused on vulnerability intelligence, vendor-risk reporting, advisory summaries, and remediation planning. It is not live monitoring, unauthorized testing, or exploit-development service.

Request Advisory Discussion
View Sample Report Structure

Defensive advisory only · Responsible use · No unauthorized testing · UK-based consultant

12+ Years Commercial Software Experience

Fullstack, API, Mobile & Cloud Background

Experience with VPN/eSIM-Related Mobile Functionality

Vendor-Risk & Remediation- Focused Reporting

Responsible-Use and Non-Exploitation Approach

My background is in fullstack software delivery, backend systems, APIs, mobile applications, cloud infrastructure, and client-facing technical work. I now apply that experience to structured telecom vulnerability-intelligence and vendor-risk advisory for telecom-adjacent businesses.

What This Service Is

Turning telecom vulnerability information into clear business and technical guidance.

Telecom systems are complex. A single vulnerability may involve a vendor product, a protocol, a network element, a roaming interface, a management system, or a 5G core function.

This service helps organizations understand telecom vulnerability information in a practical way.

The goal is to answer simple but important questions:

  • What does this vulnerability mean?
  • Which telecom layer may be affected?
  • Which vendor or product may be relevant?
  • Which protocol or technology is involved?
  • Could this affect service availability, subscriber privacy, fraud risk, or operations?
  • What should we ask the vendor?
  • What should we do next?

This service is designed for defensive advisory, vulnerability-intelligence reporting, vendor-risk tracking, and remediation planning.

Simple example:

A public advisory may say:

“Improper input validation may cause denial of service.”

A telecom-focused report explains: Which network function may be affected, what the business impact could be, whether the vendor should be contacted, and what remediation steps should be considered.

Services

Defensive telecom vulnerability-intelligence services for decision-making, vendor communication, and remediation planning.

Telecom Vulnerability Intelligence Reports

Structured reports that explain relevant telecom vulnerabilities in clear business and technical language. Reports may include the affected telecom domain, affected protocol, vendor/product relevance, severity, potential business impact, mitigation themes, vendor questions, and recommended next steps.

Best for:  Security reviews, internal risk summaries, vendor conversations, and remediation planning.

Vendor & Product Risk Tracking

Support for understanding known vulnerability exposure across telecom vendors, platforms, products, and technologies. This helps organizations ask better questions before procurement, renewal, deployment, or vendor escalation.

Best for:  Vendor reviews, supplier-risk discussions, procurement support, and patch follow-up.

Telecom CVE & Advisory Analysis

Public CVEs and advisories are often difficult to interpret in a telecom context. I help translate vulnerability notices into practical guidance: which layer is affected, why it matters, what the business impact may be, and what should be checked next.

Best for:  Teams that need plain-English explanations of telecom vulnerabilities.

Remediation-Planning Support

Guidance for converting vulnerability intelligence into practical next steps. This may include patch-priority recommendations, vendor follow-up questions, temporary mitigation themes, access-control recommendations, monitoring considerations, and executive summaries.

Best for:  Teams that need to move from ‘we know about a risk’ to ‘we know what to do next.

Sample Deliverables

Clear outputs that help technical and business teams make decisions.

Vendor-Risk Summary

A concise report explaining known risk themes around a telecom vendor, product, platform, or technology.

Telecom Advisory Brief

A plain-English summary of a telecom vulnerability, advisory, or vulnerability category, including likely impact and recommended next steps.

Remediation Planning Note

A practical action note covering patch follow-up, vendor questions, access-control considerations, and mitigation themes.

Executive Risk Summary

A business-readable summary for non-technical stakeholders, focused on impact, urgency, ownership, and next decision required.

Vendor Questions Checklist

A structured list of questions your organization can send to a vendor, supplier, or technology partner.

Sample Report Structure

How vulnerability intelligence becomes a useful advisory report.

A typical advisory report takes telecom vulnerability information and converts it into clear business and technical guidance. The report does not include exploit instructions, attack payloads, or unauthorized testing steps.

1

Executive Summary

2

Vendor or Product Reviewed

3

Telecom Domain Affected

4

Protocol or Interface Involved

5

Known Vulnerability Category

6

Business Impact

7

Severity and Priority

8

Mitigation Themes

9

Questions to Ask the Vendor

10

Recommended Next Steps

11

Responsible-Use Notice

Sample Report Preview

Vendor/Product:

Domain:

Protocol/Interface:

Risk Category:

Potential Impact:

Recommended Action:

ExampleTelco Service Gateway

5G Core / Service Management

HTTP/2-based service interface

Improper input validation

Service degradation or operational disruption

Confirm version, request vendor patch status, restrict interface exposure, document remediation owner.

This example uses fictional data and does not contain private vulnerability intelligence or exploit details.

Download Sample Report

Questions I Help You Ask Vendors

Good vendor-risk work starts with asking the right questions.

When a telecom product, platform, or service may be affected by a vulnerability, the most important step is often asking the right vendor questions. These questions help turn vulnerability intelligence into practical vendor communication and remediation planning.

Are we using an affected product or version?

The vendor should confirm the exact product name, affected versions, fixed versions, and whether your deployment is included. A useful answer would say: “Yes, version X is affected, but version Y includes the fix,” or “No, your current version is not affected

The vendor should clearly state whether a patch, hotfix, maintenance release, or upgrade is available. A strong answer includes the fixed version number, release date, and any upgrade dependencies.

The vendor should provide an official advisory reference, patch instructions, workaround steps, and any known limitations. A weak answer would be vague, such as “we are aware of the issue” without clear action.

The vendor should identify the exact affected component: API, management interface, signaling interface, RAN/OAM module, IMS/SIP component, 5G core function, or roaming/interconnect path. This helps the client understand where the risk actually sits.

A good answer should help determine exposure. For example: “The affected interface is only reachable from the internal management network,” or “The interface may be reachable by partner systems.” Exposure usually affects priority.

The vendor should explain the real-world impact. The best answer separates possible impact areas: availability, privacy, fraud, roaming, data service, voice service, or management-plane risk.

The vendor should suggest temporary risk-reduction steps, such as restricting interface access, updating firewall rules, disabling a vulnerable feature, applying configuration hardening, or increasing monitoring until a patch can be applied.

 

The vendor should identify useful logs, alerts, event types, message patterns, failed requests, abnormal traffic, or system errors that may show attempted exploitation or system stress.

 

The vendor should provide urgency guidance. For example: “Apply immediately,” “patch within 7 days,” “patch during next maintenance window,” or “low urgency if not exposed.” The answer should match severity and exposure.

The vendor should provide a safe validation method, such as checking version numbers, reviewing patch status, confirming configuration changes, verifying logs, or using an approved test method. It should not require unsafe testing of live telecom systems.

The goal is to turn complex telecom vulnerability information into clear vendor conversations, remediation planning, and business decisions.

Responsible Use & Clear Boundaries

Defensive advisory only. No unauthorized testing. No exploitation.

Telecom security is sensitive because mobile networks support communication, subscriber privacy, business operations, and critical infrastructure. This service follows strict responsible-use principles.

Responsible-Use Commitments

No unauthorized testing.

No live telecom probing without written authorization.

No exploit development.

No redistribution of private vulnerability intelligence.

No publication of sensitive technical details.

Defensive reporting only.

Clear scope for every engagement.

Responsible disclosure where appropriate.

What This Service Is Not

unauthorized telecom testing

live telecom traffic monitoring

exploit development

SS7 hacking

Diameter attack testing

SIM interception

public mobile-network probing

penetration testing without written authorization

managed SOC or 24/7 incident response.

If live monitoring, active testing, or incident response is required, that must be handled under a separate authorized scope with the correct tools, providers, and permissions.

How an Advisory Engagement Works

A simple process from concern to clear next steps.

1. Intake

You explain the vendor, product, protocol, technology, or telecom area of concern. We define whether the work is advisory only or whether any separate testing or monitoring scope may be needed.

2. Intelligence Review

Relevant vulnerability, advisory, vendor, protocol, and telecom-domain information is reviewed and organized into a practical structure.

3. Risk Translation

The issue is translated into business impact, affected telecom domain, affected protocol or interface, vendor relevance, and remediation themes.

4. Report Delivery

You receive a clear advisory report with vendor questions, priority guidance, mitigation themes, and recommended next steps.

The output is designed to help your team make better decisions, communicate with vendors, and plan remediation responsibly.

Request an Advisory Discussion

Tell me what you need help understanding.

Use this form to request a vulnerability-intelligence or vendor-risk advisory discussion. Please include as much context as possible so the scope can be understood clearly.

James Kay — Technical Advisory Consultant | UK
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