Open to opportunities

Declan Ashley

@declanashley

Message

Senior full stack engineer delivering scalable cloud-native systems and AI automation.

Ireland

Message

What I'm looking for

I seek senior engineering roles building scalable, secure cloud-native platforms; work that includes architecture, automation, mentorship, and measurable reliability/performance improvements.

I am a senior software engineer with 9+ years building distributed, large-scale systems across enterprise SaaS, telecom, and cloud platforms. I design resilient backend services and high-performance frontends using React, Vue, Next.js, Node.js, Python, and AI automation frameworks to improve reliability, throughput, and deployment velocity.

At Oracle and prior companies I led migrations from legacy Java and SOAP into microservices, automated multi-region infrastructure with Terraform on AWS/Azure, and implemented AI-driven audit and observability pipelines that reduced manual work and mean time to resolution. I mentor engineers, tighten security baselines, and deliver measurable performance and operational improvements.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Oracle

Sep 2022 - Present (3 years 3 months)

Built customer-facing React/Next.js modules and Node.js caching layers that improved dashboard load speed by 29% and user task completion; migrated legacy Java APIs to Node.js microservices on Kubernetes, cutting deployment times by 53% and reducing downtime to under 10 minutes.

React Next.js TypeScript Kubernetes Redis Python Terraform Prometheus NodeJS

Software Engineer

Oracle

Aug 2019 - Sep 2022 (3 years 1 month)

Developed Vue/React customer workflows and Node.js payment middleware to increase concurrent transaction handling 2.1× and reduced pipeline runtimes by 52%; added streaming analytics processing 300M+ monthly events using Kafka and Airflow.

Vue.Js React TypeScript Kafka Airflow Docker Jenkins PostgreSQL NodeJS

Junior Software Engineer

Vistatec

Nov 2018 - Aug 2019 (9 months)

Delivered localization automation tooling with React and Node.js that improved translation throughput 25% and halved document processing time by enhancing Python-based pipelines and FastAPI services.

React Node.Js Python fastAPI Docker Redis PostgreSQL Jenkins NodeJS

Product Engineer

Openet

Feb 2016 - Jun 2017 (1 year 4 months)

Built telecom provisioning interfaces and event-routing services, increasing rating-rule computation speeds 3× and enabling real-time handling of 65,000+ events/sec through Java, Kafka, and Python improvements.

Java Kafka Python React Ansible Docker PostgreSQL Prometheus

Education

Degrees, certifications, and relevant coursework

Maynooth University

Bachelor's degree, Computer Science and Software Engineering

2013 - 2018

Completed a Bachelor's degree in Computer Science and Software Engineering with coursework and projects focused on software engineering, distributed systems, and web technologies.