Software Developer & Systems Builder

Practical software for real businesses.

I’m Robert Alexander, a software developer focused on backend systems, automation, WordPress, integrations, databases, telephony, and production infrastructure.

About

I’m a software, automation, and infrastructure engineer with experience designing, developing, integrating, and supporting business-critical systems across web applications, backend services, databases, telecommunications, and production infrastructure.

My work often sits between software development and operations: connecting applications, automating manual processes, integrating third-party platforms, improving reliability, and solving production problems that do not fit neatly into a single technical category.

I have built and maintained systems using Perl, PHP, C#, JavaScript, SQL, Bash, WordPress, Linux, Jenkins, Salesforce, Asterisk, and a range of database and cloud technologies. I am especially comfortable working with established systems, complex integrations, and operational environments where maintainability and reliability matter as much as new development.

Outside of professional and client work, I also develop independent software projects, including Changes in Latitudes, a C# island exploration and building game.

Selected Work

Selected systems and engineering work spanning business automation, production recovery, telecommunications, continuous integration, database development, and third-party integrations.

Business Automation

Automated Fitness Studio Management Platform

Designed and developed a business-critical platform supporting customer registration, memberships, scheduling, facility access, communications, reporting, and administrative workflows for a largely automated fitness studio.

A hybrid architecture combined WordPress customer and administrative interfaces with Perl services responsible for scheduled processing, integrations, business rules, and operational automation.

WordPress, PHP, Perl, MySQL, JavaScript, REST APIs

Production Operations

Production Recovery Automation Platform

Designed and implemented an automated recovery platform replacing a multi-step manual restart process in a business-critical document production environment.

The system used a database-backed request queue and watcher service to coordinate application recovery, Azure virtual machine restarts, state tracking, logging, validation, and error handling.

SQL Server, PowerShell, Azure, AutoIt, Windows Server

Telecommunications

Telecommunications Platform Engineering

Provided engineering and operational support for multi-tenant business telecommunications environments built around Asterisk, SIP, PJSIP, carrier services, and provisioned endpoints.

Diagnosed production issues involving audio, NAT traversal, RTP, registrations, provisioning, and call routing while implementing IVRs, queues, hunt groups, voicemail routing, and business call flows.

Asterisk, SIP, PJSIP, RTP, Linux, Carrier Integration

CI/CD & Quality Assurance

Jenkins CI/CD and Automated Testing Infrastructure

Built and maintained continuous-integration and automated-testing environments supporting software deployment, build validation, quality assurance, and operational tooling.

Developed and maintained pipelines, automated tests, code-coverage reporting, deployment checks, and supporting Linux automation.

Jenkins, Perl, Bash, Linux, Git

Systems Integration

CRM and Business Systems Integration

Designed and developed integrations connecting CRM platforms, databases, telecommunications systems, payment processors, and third-party business services.

These integrations reduced repetitive processing and improved the consistency of data and workflows across otherwise separate operational systems.

Perl, PHP, SQL, Salesforce, PostgreSQL, SQL Server, REST APIs

Internal Tooling

Browser Extensions and Productivity Tools

Developed custom browser extensions and internal applications that connected existing business systems, automated repetitive workflows, and gave users faster access to frequently used operational actions.

The resulting tools reduced manual effort and streamlined common tasks without requiring the replacement of established platforms.

JavaScript, Chrome Extensions, PHP, Salesforce, APIs

Technical Skills

Experience across software development, systems integration, infrastructure, automation, databases, telecommunications, and business-critical production environments.

Languages & Development

Perl, PHP, C#, .NET, JavaScript, Python, SQL, Bash, HTML, CSS, and Apex

Application Development

Full-stack web applications, backend services, API development, systems integration, authentication systems, document generation, and browser extension development

Automation & DevOps

Workflow automation, business process automation, Jenkins, CI/CD, automated testing, deployment automation, system automation, and operational tooling

Infrastructure & Operations

Linux administration, Apache, SSH, remote infrastructure support, production operations, service deployment, environment management, monitoring, and operational debugging

Databases

PostgreSQL, MySQL, SQL Server, Azure SQL, relational database design, reporting, stored procedures, data processing, and database-driven applications

Business Platforms

Salesforce administration, Apex development, custom objects, CRM integrations, workflow automation, reporting, data management, and third-party business services

Telecommunications

Asterisk, SIP, PJSIP, RTP, NAT traversal, carrier interoperability, endpoint provisioning, call routing, IVRs, queues, and telecommunications infrastructure

Web Technologies

WordPress, custom plugin development, website migration, hosting and deployment, REST APIs, backend integrations, content management, and administrative tooling

Production Engineering

Troubleshooting, incident response, service recovery, deployment validation, application support, system monitoring, performance analysis, and long-term operational maintenance

Let’s talk.

I’m open to fully remote software development, backend, WordPress, automation, integration, and production systems opportunities.

Email: robert@paperhouse.io