Open to opportunities

Cameron Justen

@cameronjusten

Message

Senior software engineer specializing in Java-based full-stack and AI-driven solutions for fintech and edtech.

United States

Message

What I'm looking for

I seek roles building scalable AI-driven full-stack systems where I can lead backend architecture, mentor engineers, and deliver measurable performance and reliability improvements.

I am a senior software engineer with 10 years of experience building Java-based full-stack systems and AI-driven applications, including LLM integrations for fintech and edtech startups. I have a strong track record improving predictive accuracy and reducing latency while delivering high-performance APIs and responsive UIs using Spring Boot, Quarkus, React, and related technologies.

My accomplishments include designing LLM-based financial education and job training systems, optimizing backend workflows and CI/CD pipelines, mentoring engineers, and improving system reliability and performance across cloud platforms. I am committed to scalable, secure solutions and fostering collaborative team cultures focused on continuous learning and measurable business impact.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Addition Wealth

Aug 2022 - Apr 2025 (2 years 8 months)

Developed an LLM-based financial education system and AI-driven dashboards, improving content personalization accuracy by 8% and reducing API latency by 10% to support scalable LLM integration.

Java Spring Boot LLMs MongoDB GraphQL Angular TypeScript PostgreSQL Hibernate LLM

Senior Software Engineer

Careerist

Apr 2019 - Jul 2022 (3 years 3 months)

Integrated DeepLearning4J-powered job training models and optimized cloud-native Java APIs with Quarkus, improving placement accuracy by 6% and reducing API latency by 8%.

Deeplearning4j Java Quarkus PostgreSQL Jenkins Grafana CI CD Cloud)Cloud

Software Engineer

Shippo

Jun 2016 - Mar 2019 (2 years 9 months)

Built Java-based shipping APIs and a React shipping portal, reducing API latency by 5% and merchant interaction time by 35% while improving CI/CD and test coverage.

Java Spring Boot React TypeScript PostgreSQL Hibernate OAUTH2 CI CD

Junior Software Developer

Moov

Apr 2014 - Jun 2016 (2 years 2 months)

Contributed to QA/testing, implemented standardized code review processes, and collaborated on GitLab merge workflows, reducing post-release bugs by 5% and accelerating releases.