Ray Lehtiniemi Email & Phone Number

Calgary, Canada Area

- migrated AWS-hosted SaaS application to a 3-tier network design with network and application level access controls (security groups, nginx reverse proxies, SSH bastion hosts, etc)- implemented logging, monitoring and alerting solutions using Graphite and Elastic- maintained and upgraded IPSEC VPNs to GSM carriers- developed configuration management.

Calgary, Canada Area

• developed an AJAX news feed system for a high-traffic website using Python, Redis, Elasticsearch, and ZMQ
• core member of the launch team during the beta and go-live releases
• revamped Jira projects, workflows and dashboards to better support the development process
• worked with developers to identify and eliminate process problems and inefficiencies
• brought the development and deployment logic under configuration control
• unified and rationalized deployment processes between Vagrant-based development and AWS-based production environments

Calgary, Canada Area

• Embedded firmware development for Qualcomm Gobi3000 CDMA/UMTS wirelessmodule (Qualcomm QSC6695 processor based on ARM 1136J core)
• Debugged and resolved a variety of Win8 WHCK and carrier technical acceptanceproblems (incorrect process priorities causing watchdog timeouts, flash corruptiondisrupting secure boot process, application-level.
• Developed reusable scripts for Lauterbach T32 JTAG debugger

Calgary, Canada Area

• Refreshed core IT systems to improve operational performance and stability, including facilities work, switching upgrades, and new firewalls, email systems and service desk
• Consolidated redundant services and retired old services
• Engaged an enterprise architecture firm to help develop strategies for change
• Worked with corporate, legal, service development, engineering and QA teams to help define roles and responsibilities and develop OSS/BSS systems and processes

Calgary, Canada Area

• Managed an 8-person software development team working on a number of concurrent projects
• Provided architectural input and design review on several streaming video development projects
• Collaborated with hardware manager to balance competing demands on limited developer resources
• Played a supporting PM role (scope definition, activity definition, sequencing and estimation, risk identification, and performance reporting)
• Identified staffing gaps, candidate screening and interviewing. Performance and salary reviews, hiring and firing
• Spearheaded the adoption of a formal Agile software development process

Calgary, Canada Area

• Software architect for PCS product line (a head-mounted 3D stereoscopic video player)
• Helped design and develop a high-speed LVDS communications protocol
• Utilized the R statistical package to evaluate HMD optical performance and optimize brightness and color balance of the display illumination circuitry
• Designed a file format for stereoscopic 3D video. Optimized system software to handle higher bandwidth stereoscopic video flow and double-speed frame rate
• Developed a VHDL module to encrypt DDR bus transactions
• Evaluated and selected component technologies (TCP stack, WLAN chipset, UPNP stack, etc)

Calgary, Canada Area

• Refactored and ported a Phillips-8051/Atmel-163 based reference application to a Cygnal-8051/Atmel-Mega16 based custom board design
• Characterized the performance of several system components, including a 16-bit ADC and a field-programmable analog array device, exposing critical signal quality issues in one device
• Prototyped a ladder-logic PLC system for control of a medical imaging robotic arm
• Ported Linux/ARM to Cirrus ep93xx device family. Created a Linux-based development environment for embedded systems

Calgary, Canada Area

• Analysed “small packet” network performance of Linux UDP network stack on x86-based VOIP gateway
• Evaluated Intel IXP2800 NPU as a potential next-generation platform for the system

Calgary, Canada Area

• Participated in several high-voltage power transmission system studies; assisted our Senior Analyst with system analysis and report writing. Developed tools to optimize and automate routine data analysis tasks.
• Evaluated analysis results and developed tools to verify the numbers; detected and flagged several problems in the core analysis software engine
• Developed data modelling and migration tools between two different power system network description formats; identified and resolved inconsistencies between the two formats
• Handled IT duties for a small startup company (10 people in 4 locations). Deployed OpenBSD-based VPN and implemented secure PGP email processes

Ottawa, Canada Area

• Designed and implemented telecommunications management software using C and C++ on a Solaris platform. Specified and implemented new features for an existing element management product. Gained experience with backbone.