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I am a seasoned PHP Developer with 13+ years creating robust PHP applications and modules that meet business needs while staying scalable, efficient, and secure. I have deep expertise in secure payment solutions that integrate with client enterprise systems, and I actively use AI tools like Cursor and JetBrains AI Assistant to accelerate development, debugging, and search. I excel in delivering high-quality code and design solutions, working across projects using Agile processes, and collaborating with stakeholders from account managers to QA teams to ensure value and timely delivery.…I am a seasoned PHP Developer with 13+ years creating robust PHP applications and modules that meet business needs while staying scalable, efficient, and secure. I have deep expertise in secure payment solutions that integrate with client enterprise systems, and I actively use AI tools like Cursor and JetBrains AI Assistant to accelerate development, debugging, and search. I excel in delivering high-quality code and design solutions, working across projects using Agile processes, and collaborating with stakeholders from account managers to QA teams to ensure value and timely delivery.

David Theobald

Web Developer, Back-End Developer, Full Stack Developer, +3

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I am a seasoned PHP Developer with 13+ years creating robust PHP applications and modules that meet business needs while staying scalable, efficient, and secure. I have deep expertise in secure payment solutions that integrate with client enterprise systems, and I actively use AI tools like Cursor and JetBrains AI Assistant to accelerate development, debugging, and search. I excel in delivering high-quality code and design solutions, working across projects using Agile processes, and collaborating with stakeholders from account managers to QA teams to ensure value and timely delivery.…I am a seasoned PHP Developer with 13+ years creating robust PHP applications and modules that meet business needs while staying scalable, efficient, and secure. I have deep expertise in secure payment solutions that integrate with client enterprise systems, and I actively use AI tools like Cursor and JetBrains AI Assistant to accelerate development, debugging, and search. I excel in delivering high-quality code and design solutions, working across projects using Agile processes, and collaborating with stakeholders from account managers to QA teams to ensure value and timely delivery.

Available to hire

I am a seasoned PHP Developer with 13+ years creating robust PHP applications and modules that meet business needs while staying scalable, efficient, and secure. I have deep expertise in secure payment solutions that integrate with client enterprise systems, and I actively use AI tools like Cursor and JetBrains AI Assistant to accelerate development, debugging, and search. I excel in delivering high-quality code and design solutions, working across projects using Agile processes, and collaborating with stakeholders from account managers to QA teams to ensure value and timely delivery.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

PHP Developer at IdGateway

February 1, 2024 - November 30, 2025

Conducted testing and debugging to identify and rectify software flaws; tracked and approved client employee information using logs, unit tests and xdebug. Deployed software on AWS using Terraform and monitored with AWS CloudWatch for day-to-day operations. Wrote clean, efficient code aligned with company standards. Developed two large add-ons for client onboarding and an API integration to retrieve and display client data in a separate system. Created Python Lambda functions for image resizing and document scanning in AWS. Built Terraform configurations for AWS Lambda, firewall, and S3. Used Jira for ticketing and GitLab for deployment. Used sequence diagrams to model user interactions.

Senior Software Engineer at Eckoh

August 1, 2014 - January 31, 2024

Developed PCI and PPI-compliant payment systems across on-prem and cloud environments. Led DevOps with Kubernetes, Splunk, and AWS; designed and delivered IVR and API payments. Expanded payments into Commercial channels and updated API flows to REST from SOAP. Trained new starters on PCI-compliant payment systems for phone, web, and RESTful APIs, maintaining data confidentiality and coding standards.

PHP Developer at Foremost Currency Group

November 1, 2011 - July 31, 2014

Designed FCA-compliant modules; built replacement back-office systems in Yii; migrated to VMware for improved disaster recovery; integrated with World Check, Smart, and Sage Trace Pay APIs; moved toward a paperless environment.

Software Engineer at O-bit Telecom

August 1, 2010 - October 31, 2011

Designed and updated MySQL schemas; built interactive features with HTML/CSS/JavaScript/JQuery; created graphs and user-facing widgets.

Software Engineer at Kingsoft Zhuhai

January 1, 2007 - December 31, 2009

Early career software engineer delivering core components in a fast-paced environment.

Manager & IT Administrator at Cityline

January 1, 2001 - December 31, 2003

Managed learning centre IT operations and administration, aligning technology with learning objectives.

Manager & IT Administrator at Computer Wizards

January 1, 1998 - December 31, 2001

Managed IT infrastructure and supported software deployments in a small business environment.

Open Learning Centre/Manager at Cityline, New Zealand

January 1, 2001 - December 31, 2003

Managed learning initiatives and IT-related responsibilities within a learning center environment.

Manager & IT Administrator at Computer Wizards, Texas, USA

January 1, 1998 - December 31, 2001

Managed IT operations and provided software development support for local clients.