Joshua D

@jd4877
5.0(28)

Level 2

Making your Application Ideas a Reality

United Kingdom
English
About me
Hey there! I’m a London-based software engineer with 9+ years of experience in full-stack development. I’ve built scalable web applications using JavaScript, React, and Node.js, and deployed them to the cloud with AWS. My background includes working with top consultancies, delivering high-performance solutions for a range of clients. I love coding and am genuinely passionate about building great software. Whether you need a full-stack web app, a complex website, or even a smaller project, I can make it happen. Just give me a detailed spec, and I’ll bring your idea to life!... Read more

Skills

j
jd4877
Joshua D
$45/hour
Offline • 
Average response time: 1 hour

See my services

Full Stack Web Applications
I will build a custom saas web application for your business
5.0(22)
Programming & Tech
I will be your fractional cto for saas startup or ai product
5.0(3)

Want to work on an hourly basis?

Tell Joshua D what you need.

$45

/

hour

Portfolio

Work experience

CTO & Lead Engineer

Sportiio • Full-time

Aug 2024 - Present1 yr 9 mos

CTO and Lead Developer for a sports-based investment company, responsible for both technical strategy and hands-on delivery. Led the design and development of the core platform, covering frontend, backend, data pipelines, and cloud infrastructure. Worked closely with founders and stakeholders to align technology decisions with commercial and investment goals. Oversaw system architecture, security, and scalability to support real-world financial use cases, while actively building and maintaining production code. Drove technical standards, managed third-party integrations, and guided the product from early concept through to a stable, operational platform supporting ongoing growth.

Lead Developer

Connectr • Full-time

Jun 2022 - Aug 20242 yrs 2 mos

Lead Developer for the Connectr Human Resources CRM, responsible for the technical direction, architecture, and ongoing development of a core business platform. Led the design and implementation of both frontend and backend systems, ensuring reliability, performance, and scalability in a production environment. Worked closely with stakeholders to translate business requirements into practical technical solutions, while guiding development standards and best practices. Oversaw integrations with third-party services, data management, and cloud deployment, and played a key role in improving system stability and maintainability as the product evolved. Took ownership of complex features and long-term technical decisions to support continued growth of the platform.

Senior Engineer

Patient Zero • Freelance

Feb 2019 - Jun 20223 yrs 4 mos

Senior Software Engineer with experience working in a standard development agency environment, delivering and maintaining production-grade applications for a range of clients. Strong background across the full stack, from frontend interfaces through to backend systems and cloud infrastructure. Regularly involved in architecture decisions, technical planning, and improving existing codebases. Comfortable working with legacy systems as well as greenfield projects, balancing speed, quality, and long-term maintainability. Experienced in collaborating with designers, product managers, and stakeholders to turn requirements into reliable, scalable solutions. Known for a pragmatic approach to problem-solving, clear communication, and taking ownership of complex technical challenges.

28 Reviews
5.0

(28)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-5 out of 28 Reviews
Sort By
Most relevant
    J
    image-docs

    jdecker379

    Repeat Client

    US

    United States

    5

    I have worked with Joshua several times on this project. This time, a quick fix was needed (not because his code broke, rather a website that it interacts with changed their API language) and he did it in under 24 hours! Not only did I have a wonderful initial experience building the application with...

    Up to $50

    Price

    4 days

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    C
    image-docs

    charliebarrett

    Repeat Client

    GB

    United Kingdom

    5

    As always, Josh does excellent work and I recommend highly.

    $800-$1,000

    Price

    7 days

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    J
    image-docs

    jdecker379

    Repeat Client

    US

    United States

    5

    I have worked with Joshua a lot over the past year. His performance has always been stellar! This time, it was a quick fix to a platform he created (the site the platform interacts with changed some code, it was not an error on his side). Rest assured that if you work on a project with Joshua, he will...

    Up to $50

    Price

    4 days

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    L

    larsen_02

    Repeat Client

    AU

    Australia

    5

    Once again a fantastic experience working with Josh! He managed to pick up on a few security issues we had on a previous code base and gave solid guidance on how to proceed. As always was very quick to respond, jumped on a call within an hour of the first message! Would wholeheartedly recommend

    Up to $50

    Price

    1 day

    Duration

    gig

    Full Stack Web Applications

    Helpful?
    Yes
    No
    N

    nedk11

    CA

    Canada

    5

    Josh was very helpful in helping me set up my project, thanks again Josh

    $50-$100

    Price

    1 day

    Duration

    gig

    AI Websites & Software

    Helpful?
    Yes
    No