Isaac "Ike" Castillo

Workflow Tools Developer & Atlassian Specialist

I build high-impact internal systems that streamline operations, cut costs, and scale with the business. Specializing in turning manual chaos into intuitive, scriptable, self-sustaining automation platforms.

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Isaac Castillo
Isaac Castillo

Core Amenities

Atlassian Expertise

Full-stack Jira & Confluence customization with deep knowledge of ScriptRunner, automation rules, and custom workflows.

Process Optimization

Transforming manual processes into streamlined, automated workflows that scale with your business needs.

UI/UX Design

Creating intuitive interfaces that prioritize clarity, hierarchy, and user experience.

Cost Reduction

Identifying opportunities to consolidate tools, optimize licenses, and reduce operational costs.

Core Skills

Specialized expertise in workflow optimization, system design, and user experience

Atlassian Ecosystem

Expert in Jira, Confluence, ScriptRunner, and the entire Atlassian stack with deep customization knowledge.

  • Jira Software/Service Mgmt
  • Confluence Data Center
  • ScriptRunner
  • Insight
  • Comala
  • ConfiForms

Development

Full-stack development skills with focus on automation, scripting, and integration.

  • Groovy
  • JavaScript/TypeScript
  • HTML/CSS
  • Python
  • REST APIs
  • Git

Workflow Design

Creating efficient, intuitive workflows that streamline operations and improve productivity.

  • Process Optimization
  • Automation Rules
  • Permission Schemes
  • Screen Schemes
  • Custom Fields

System Architecture

Designing scalable, maintainable systems that grow with organizational needs.

  • Document Management
  • Service Portals
  • License Management
  • System Scaling
  • Self-service Tools

UI/UX Design

Creating intuitive interfaces that prioritize clarity, hierarchy, and user experience.

  • Figma
  • Tailwind CSS
  • Webflow
  • Accessibility
  • User Testing

Team Leadership

Mentoring teams and leading initiatives that drive organizational change.

  • Training & Onboarding
  • Documentation
  • Change Management
  • Process Implementation

Featured Projects

Innovative solutions that drive efficiency, reduce costs, and improve user experience

Document Management Platform
Featured
8K+ users | $150K/year saved

Document Management Platform

Built a full-stack SOP workflow using Jira + Confluence + ScriptRunner + Comala. Dynamic approvals, asset routing, and compliance-ready.

Jira
Confluence
ScriptRunner
+2
AI-Powered Atlassian Assistant
Featured
Private LLM | Jira + Confluence Indexing

AI-Powered Atlassian Assistant

Created a secure, on-prem AI agent that answers Confluence questions, assists in inline editing, writes JQL, and generates Jira issue comments.

AI
LLM
Jira API
+2
Smart Jira Service Portal
Featured
AI-Enhanced | Enterprise-Scale

Smart Jira Service Portal

Developed an intelligent request intake system that routes users to the correct service form, launches automations, and scales without team growth.

Jira Service Management
Automation
AI
+2

Work Experience

Professional journey and key achievements

Atlassian Administrator

Samsung Austin SemiconductorAustin, TX2019 – Present

Leading Atlassian platform innovation and administration for a major semiconductor manufacturer.

  • Administered Jira Software, JSM, and Confluence for over 8,000 users, supporting both internal and contractor teams.
  • Designed and implemented a full SOP system across Confluence, Jira Service Management, Comala workflows, and Assets; reduced stakeholder touchpoints by 81% and saved $162K+ annually.
  • Developed 150+ Groovy scripts (listeners, behaviors, fragments) using ScriptRunner to replace third-party plugins and automate complex workflows.
  • Built enterprise Spotfire dashboards for live production metrics, passdowns, and tool visibility — several directly requested by Samsung HQ and company leadership.
  • Selected to create data visualizations used in executive briefings, including reports presented to the company president.
  • Led the creation of a full internal documentation ecosystem using Confluence, receiving a Director's Award for centralized tool indexing across tool types, recipes, and job roles.
  • Served as internal AI lead for Confluence and Jira integrations with LLMs. Deployed a custom chatbot using ScriptRunner endpoints and internal LLM APIs to assist with knowledge management and reduce support overhead.
  • Co-founder of two internal ERG initiatives, supporting workplace innovation and inclusivity.
  • Regularly consulted by cross-functional teams to assist with Atlassian product best practices, automation, and internal tooling design.
  • In final proceedings to become co-lead for an ERG group due to leadership and innovation track record.
  • Recognized with multiple site awards for innovation, impact, and performance.
  • Led onboarding and mentoring of new Atlassian admins and system users; drove company-wide adoption of Jira and Confluence platforms during migration from SharePoint.
  • Maintained 4+ performance rating (top 25% of site) across multiple years; only received a 3 once, during a mid-year team transition.

Process Technician / Equipment Technician

Samsung Austin SemiconductorAustin, TX2017 – 2019

Promoted after 1 year due to standout contributions in automation and documentation.

  • Promoted after 1 year due to standout contributions in automation and documentation.
  • Designed and implemented 50+ workflow and documentation optimizations in SharePoint to modernize internal operations.
  • Introduced Spotfire usage for passdowns and data visualization across key manufacturing teams.
  • Consistently led innovation initiatives, even while in junior roles, becoming known as a team mentor and go-to technical resource.
  • Created the site's first "tools page" within Confluence for linking all relevant documentation, guides, and checklists per tool type.
  • Built early internal applications (like the confirms tracker) that improved visibility and operational efficiency across departments.

Education

Bachelor of Science – Computer Science (In Progress)
Expected Completion: 2027

Additional Highlights

  • Selected to represent the Atlassian team in site-level strategy sessions.
  • Frequently collaborates with engineering leaders on cross-platform tooling strategy.
  • Trusted to reverse engineer legacy apps and deliver clean replacements in Jira.
  • Passionate about the future of AI-enhanced workflows and data-driven decision making.
  • Regularly works evenings or off-hours to solve high-priority issues — self-driven by curiosity and accountability.
  • Values scalable documentation and support tools that benefit all users, not just admins.

Contact

Get in touch to discuss your project or just say hello

Get In Touch

Other Ways to Connect

Email:ikecastillo94@gmail.com

LinkedIn:linkedin.com/in/ikecast

Phone:(512) 630-4788