Open to opportunities

Matthew Mullins

@matthewmullins

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Results-driven Senior Full Stack Engineer with 9 years of experience.

United States

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What I'm looking for

I am looking for a role that fosters innovation, collaboration, and opportunities for growth.

I am a results-driven Senior Full Stack Engineer with 9 years of experience in building scalable backend systems and cloud-native services. My expertise lies in Python, Java, Go, and C#, with a specialization in Django, FastAPI, and AWS. I have a proven track record of optimizing system performance and driving business outcomes, having successfully reduced deployment time by 70% and cut infrastructure costs by $300K through microservice migration and automation.

In my current role at Walmart, I rebuilt the Promotions Management System using Django and AWS Lambda, achieving an 85% reduction in campaign deployment time. I designed high-throughput RESTful APIs that serve millions of daily requests with exceptional uptime and low latency. My commitment to mentoring junior engineers and leading cross-functional collaborations has significantly improved team output quality and alignment with business KPIs.

Throughout my career, I have consistently focused on delivering high-quality software solutions that enhance user experience and operational efficiency. I am passionate about leveraging technology to solve complex problems and drive innovation in the software development landscape.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Walmart

May 2020 - Present (5 years)

Rebuilt the Promotions Management System using Django and AWS Lambda, reducing campaign deployment time by 85%. Designed high-throughput RESTful APIs and deployed Python microservices using LangChain and Pinecone to power LLM-based internal support agents. Automated infrastructure with Terraform and Jenkins, cutting deployment time by 70% and eliminating 80% of manual release errors.

Django Python React AWS Lambda Kubernetes Terraform Jenkins Datadog Lang Chain

Full Stack Developer

Alkami Technology

Jul 2017 - Mar 2020 (2 years 8 months)

Built and maintained Django and Java-based banking applications, achieving 99.98% platform uptime for over 1M customers. Developed client-facing dashboards using React and internal admin tools in Angular, improving engagement and efficiency. Migrated legacy services to Docker containers on AWS EKS and implemented CI/CD pipelines with GitLab.

Django Java React Docker Gitlab Pytest Python Redis NLP

Software Engineer Backend Service

Molina Healthcare

Oct 2015 - May 2017 (1 year 7 months)

Built Django APIs for provider directory and claims processing systems, improving backend stability for 500K Medicaid users. Developed React dashboards for a member-facing healthcare portal, enhancing patient engagement. Replaced slow ETL scripts and created Airflow pipelines to automate regulatory report generation.

Django React PostgreSQL Celery ETL REST APIs Airflow Go HIPAA Agile

Software Engineer Intern

Software Development

Jan 2015 - Aug 2015 (7 months)

Built internal Django dashboards to monitor CI pipeline test failures, reducing triage time by 60%. Automated AMI provisioning with Python and Bash, cutting environment setup time. Established Jenkins-based CI pipelines and developed Pytest-based test suites, improving release reliability and test coverage.