Professional consulting for your app & software.
Hey there! I'm Andrew Pettigrew. Senior Software Engineer focused on building scalable applications.
Things I do for you that simply make your software better.
With over 8 years of experience in software engineering, I specialize in building scalable applications, optimizing system performance, and leading development teams to deliver exceptional results.
Full-Stack Development
Building end-to-end applications with modern frameworks like React, Next.js, and Node.js. From responsive frontends to scalable backend APIs.
System Architecture
Designing robust, scalable systems that handle millions of users. Microservices, cloud infrastructure, and performance optimization.
API + Integrations
Building robust, scalable APIs and seamless integrations with third-party services. RESTful APIs, GraphQL, webhooks, and enterprise system integrations.
Technical Leadership
Leading engineering teams, mentoring developers, and driving technical excellence through code reviews and best practices.
Performance Optimization
Optimizing application performance, database queries, and user experience. Making software faster, more efficient, and scalable.
Recent work experiences
Benevity
Sep 2024 – Feb 2025
Software Engineer II
Implemented Spring Boot RESTful APIs to decouple product data from monolithic systems, delivered frontend enhancements using Vue.js serving 900+ companies and 21M+ users.
The Park Playground
Jun 2022 – Jun 2024
Sr. Software Engineer
I developed a scalable, SEO-optimized Next.js site supporting 100,000+ daily users across 4 countries, integrated AWS Cognito for secure authentication, built serverless survey systems, and worked cross-functionally with product, design, and QA teams in an agile environment.
Paperchain
Jul 2021 – Mar 2022
Software Engineer Consultant
I built high-performance RESTful APIs with Node.js (Hapi.js) on GCP Serverless stack for media and payments integration, and integrated Stripe payment gateway while maintaining API documentation and automated tests to ensure compliance and reliability.
Brainboxx Solutions
Oct 2019 – Jun 2021
Cofounder / Fullstack Engineer
I developed a multi-tenant HR engagement SaaS platform using Angular, Node.js, and MongoDB on AWS Elastic Beanstalk, closed two B2B client contracts and managed the full development lifecycle of client projects.
RealDecoy
Jun 2016 – Oct 2019
Software Engineer II
I migrated enterprise data sources from Endeca Commerce to Solr and Elasticsearch reducing licensing costs by 15%, built Java Spring and Elasticsearch-based solutions for pharmaceutical clients, and mentored junior developers while leading code reviews to improve team code quality.
Let's Work Together
Ready to bring your next project to life? I'm available for full-time opportunities and consulting engagements.
Send me a message
Get in touch
I'm always interested in hearing about new opportunities and exciting projects. Whether you need a full-time engineer or consulting services, let's discuss how I can help.