SUMMARY

• Seeking a fulltime position as a software engineer encompassing architect/design and development.
• Over 15 years of experience in large scale system architecture, multi - threaded, real time, multi-node environments.
• I can work as an individual contributor that is self-motivated and responsible to meet dead-lines and requirements.
• I am also able to participate constructively in team environments in a tightly collaborative and rapid adaptive design process.
• I have a strong understanding of OO analysis and UML modeling and employ these as tools to aid in communicating concepts and visualizing the project conceptually throughout the development cycle with continuous interaction from stake holders.
• I adhere to the idea that design directly influences profitability by working to minimize the cost of maintenance, verification, and of ownership over the life cycle of a product.
• Over 15 years as a large - scale Java application developer
• Multi-threaded, real time environments
• Worked with persistence models and SQL
• OO analysis and design
• Design patterns and their use
• Spring MVC, Spring Integration, Spring AOP
• Spring XML and Annotations and Springboot
• Spring REST Services
• JavaScript and JQuery, Bootstrap, AJAX
• Hibernate
• Junit testing
• Extensive Java Swing Application Development
• Linux OS proficiency
• Networking Basics- IP, TCP, UDP, Ethernet
• Familiar with SIP, RTP
• ANT, XML, JSP
• Agile Methodologies.

PROFESSIONAL EXPERIENCE

Confidential, Plano, Texas

Manager

Responsibilities:

• Oversaw logistics, infrastructure, supply chain, accounting and general management

Confidential, Frisco, Texas

Senior Software Developer

Responsibilities:

• Principal architect/designer for call control services platform which serviced advanced initial call sessions and mid-call services. Responsible for requirements, design, sizing, implementation and working with verification. Services bridged enterprise functionality with carrier based mobile devices.
• Call control services are some of the more complex software systems. These systems are under stringent real time constraints, minimal memory footprints and garbage collection requirements. The environment involves managing concurrent services which combine aspects of data driven and stateful transitions in event driven sessions.
• This service platform provided the environment for call topology manipulation such as initiating, bridging, releasing, and attaching calls. Services often include simultaneously managing offboard real time resources such as presence and voicemail servers and media gateways. Services included moving a call seamlessly from cellular to a desk phone and vice-versa, handoff between cellular based call to a WiFi based call on the same mobile phone handset, Caller ID manipulation for single number presentation and law enforcement, Conference, Transfer, Consultative Calls, Voicemail, Voicemail Notification.
• External protocol interfaces were mostly SIP but also included SS7 GSM.
• Web based provisioning development using JSP and Javascript. Data schema design and real time persistence.

Confidential, Plano, Texas

Operations Director

Responsibilities:

• Developed data flow to allow processing and handling of orders from sale through post sale which included feedback processing after product delivery. This included sale notification, payment handling, shipping manifests, and data collection for tax purposes.
• Developed all business processes. Handled third party software analysis and integration into business process. Setup all accounting and reporting processes to conform to IRS and state tax code.
• Setup and developed banking and credit relationships. Handled payroll which included all payroll tax, reporting and payment.
• Lead the internal software development initiative to provide more custom and better fit software solutions.
• This also included technical and financial discussions and negotiations with external software vendors. Managed risk and financial assessments as well as scheduling, planning and resource allocation.

Confidential, Richardson, Texas

Software Architect

Responsibilities:

• Services and translation framework architect for Nortel’s Telephony Soft Switch used in the CS3000 VoIP offering.
• Oversaw the technical requirements, analysis and design and system integration for a team of 10 designers with multiple work items being developed concurrently. Extensive use of UML modeling and collaborative design from requirements and analysis through implementation and design verification. Responsible for nearly a million lines of code.
• Responsibility for providing an extensible, programmable framework for network services: such as N00, LNP, AIN, VPN, overlaid dialing plans, overlap dialing support, virtual networks for switchless resellers and CIC routing, and others with intent to enable off board 3rd party services. Persistent database work (data schema and white box framework) and GUI front ends as well as mass import provisioning schemes. This work was for both the North American and European (and other non-NA) markets. The platform was a distributed SCP with centralized provisioning supporting both native GUIs and an OSS interface over RMI.
• Responsible for capacity issues and memory footprint as well as engineering configurations, fault tolerance and robustness. Responsibilities also include release content, schedules, resourcing, and integration with other platform components.
• Call processing and switch control design on Bellcore compliant IXC switching platform.
• Involved working heavily with the SS7 protocol especially ISUP. AIN based features such as LNP and toll-free number portability with IN1 interaction and ISUP based congestion control (ACC). Team member on LNP for Confidential UCS DMS250 and provided the world’s first successful LNP trial call.

Confidential, Richardson, Texas

Systems Engineer

Responsibilities:

• Configuration, test and documentation of secure military switches.