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Johnathan Leppert

Sr. Software Engineer @ Kespry Inc.

Software Engineering Manager at Volans-i

San Francisco, California, United States

Ranked #1,353 out of 27,060 for Sr. Software Engineer in California

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Johnathan Leppert's Email Addresses & Phone Numbers

Johnathan Leppert's Work Experience

Kespry Inc.

Sr. Software Engineer

July 2015 to Present

San Francisco Bay Area


Frontend Software Engineer

October 2014 to July 2015

San Francisco Bay Area


Sr. Software Engineer

July 2013 to February 2014

Mountain View, CA

Johnathan Leppert's Education

DeVry University

Computer Science Information Systems

The Ohio State University

Computer Science

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52% Left Brained
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Johnathan Leppert's Estimated Salary Range

About Johnathan Leppert's Current Company

Kespry Inc.

Primarily work on cloud platform. Rails, Ember.js, Leaflet, Postgres. Photogrammetry, orthomosaic, tiling map interfaces. Applications of data include volumetric analysis, 3D modeling, tagging of images for machine learning using Amazon mechanical turk, EC2/S3/lambda.

Frequently Asked Questions about Johnathan Leppert

What company does Johnathan Leppert work for?

Johnathan Leppert works for Kespry Inc.

What is Johnathan Leppert's role at Kespry Inc.?

Johnathan Leppert is Sr. Software Engineer

What is Johnathan Leppert's personal email address?

Johnathan Leppert's personal email address is j****[email protected]

What is Johnathan Leppert's business email address?

Johnathan Leppert's business email addresses are not available

What is Johnathan Leppert's Phone Number?

Johnathan Leppert's phone (213) ***-*389

What industry does Johnathan Leppert work in?

Johnathan Leppert works in the Aviation & Aerospace industry.

Who are Johnathan Leppert's colleagues?

Johnathan Leppert's colleagues are Nathaniel T., and Amir Kheirabadi

About Johnathan Leppert

📖 Summary

Thanks for visiting my page darling... My interests are in the latest techniques for web development, specifically single page applications. I have experience with many of the major javascript frameworks, with a solid base of object oriented javascript and the DOM. I have experience managing large and complicated frontend code bases. In past roles I've introduced unit testing, continuous integration and automated frontend integration testing. I like to approach frontend problems with an engineering mindset. I really like working with other developers who share my passion and obsession over the frontend. The user interface is the human interface between machine and person and is a critical touch point in the user product experience. I like to develop systems in a vacuum with open source first mindset, having each part communicate through well-defined APIs and easy to use interfaces with a UNIX-like mentality ("do one thing, do it well"​). I believe complicated systems should be designed as a subset of simple, discrete, easy to use modules. Separation of concern, convention and developer cognitive load are very important to ensure long lasting and maintainable systems. Coding should be just as fun as coloring with crayons or building LEGOs. Code clarity, readability/maintainability, developer process, automation and visibility are always areas I am looking to continually improve. My blog is at Check out my github: for code samples. I also have recent experience in RC UAV (multi-rotor/fixed-wing) hardware, including design, building, testing and flight mechanics. AeroQuad, Pixhawk, AutoQuad, DJI Naza platforms. Specialties: HTML/CSS/javascript (jquery, extjs, prototype, mootools, backbone, ember, react). C, Perl/PHP/Ruby, SQL (mysql, postgresql), Unix/Linux. XMPP, node.js, real-time and event-based network application development. Understanding of TCP/IP, network layers and topology, basic routing, protocolsSr. Software Engineer @ Primarily work on cloud platform. Rails, Ember.js, Leaflet, Postgres. Photogrammetry, orthomosaic, tiling map interfaces. Applications of data include volumetric analysis, 3D modeling, tagging of images for machine learning using Amazon mechanical turk, EC2/S3/lambda. From July 2015 to Present (5 months) San Francisco Bay AreaFrontend Software Engineer @ Pure javascript (node + backbone, npm managed) environment and stack. I work on all layers of the application, from REST API service development, tooling, frontend, etc. WebGL, canvas and web sockets are some of the areas of interest. From October 2014 to July 2015 (10 months) San Francisco Bay AreaSr. Software Engineer @ As a senior engineer, I worked on the Presentation Infrastructure/Service Infrastructure group within LinkedIn. In addition to a subject matter expert on a variety of LinkedIn frontend technologies, I also worked with other engineering groups in the company on projects that are at the core of LinkedIn's frontend architecture. During this position, I worked to transition to a new static content management system, assist with migration to Dust templating system, worked with CDN issues/scalability in serving static content, build infrastructure for static content, developed a cluster to compile our frontend assets and speed production deployments, worked on a project to provide for localization and translation client-side (using INTL ECMA standard), worked on supporting dynamically loaded javascript to speed performance and page load, and support of developed dust server-side template parser generator. I also created a cool WYSIWYG template editor for Dust templates as a hackday project. From July 2013 to February 2014 (8 months) Mountain View, CASr. Web Developer @ My primary focus at LinkedIn as a Web Developer was working within the Presentation Infrastructure group on horizontal initiatives. Projects include migration to Dust templating system (which was underway by another engineer but I got to assist and see how to orchestrate such a change), SCSS compilation infrastructure and support, static content delivery infrastructure, and development of internal tools and services, supporting LinkedIn's web dev and engineering organizations. I worked on some applications as well, including the recruiter app, sponsored ads, and global navigation. From April 2012 to July 2013 (1 year 4 months) Mountain View, CASr. Frontend Software Engineer @ As a Sr. Frontend Engineer, I developed and implemented an innovative and client-side configurable javascript widget framework to provide a mechanism to run applications on third party sites. Developed a configuration and preview tool, as well as WYSIWYG editor and embed code generator. Designed a build and minification process to efficiently provide for development process and just-in-time code delivery. Additionally, I developed a Backbone.js implementation of the company's main application and launched several successful deployments for major clients. In this position, I gained experience working in a true agile environment (scrum, sprints, points, kanban, etc), as well as supporting embeddable javascript applications that run on third party sites. From August 2011 to April 2012 (9 months) San Francisco Bay AreaSoftware Developer @ OO Perl (mod_perl) Apache, Nginx, Varnish environment. Day to day tasks with Javascript, HTML/CSS, Oracle DB, SOLR/Lucene. Work on several projects for a high traffic web application, including JSON API development, frontend performance, social sign-on and social services integration, claim analytics frontend dashboard and API, and geocoding service development. Assist with mongodb and node.js architecture. Implemented JSON API ( for mobile apps and on the iPhone project team which successfully brought an iPhone app to market. From January 2011 to August 2011 (8 months) Columbus, Ohio AreaSoftware Architect @ mod_perl, MySQL and Linux environment, in house custom framework. Primarily worked on 80,000+ employee internal company-wide HRIS platform. Successfully launched several projects and involved in the development of various layers of the application from frontend, backend and ETL systems. Gained experience in telephony/CTI, development process, QA, unit testing and object oriented design. From July 2005 to March 2011 (5 years 9 months) Columbus, Ohio AreaSr. Software Engineer @ Nginx, Symfony, MySQL, PHP, RHEL environment. Successfully developed a scalability strategy involving read-only/read-write slave database replication with db traffic separation at ORM layer using Doctrine framework. Designed and implemented memcache based object caching framework and faceted query processor, developed and managed web cluster linux environment of 10 production servers (8 web servers and two DB instances) including majority of sysadmin tasks such as setup of LDAP, production services, monitoring (using Zabbix and monit). Implemented simple distributed memory queue using beanstalk image processing system backed by Amazon S3, which successfully handled 10 MM+ images and provided arbitrary thumbnail generation. Designed and developed REST API and guided initial iPhone application development, working with third party mobile development contractors to successful launch. Implemented high-level event monitoring and analytics (logins per hour, messages sent per minute, etc) and reliably grew the product to over 100k users, with thousands of peak sessions online. Created and managed a development, qa, staging and pre-production environment and release process for in-house employees and third party contractors. From October 2009 to October 2010 (1 year 1 month) Columbus, Ohio AreaComputer Science, Information Systems @ DeVry UniversityComputer Science @ The Ohio State University Johnathan Leppert is skilled in: C, Objective-C, C++, Java, Perl, Python, Ruby, PHP, JavaScript, HTML/CSS, HTML5, CSS3, SCSS, Cocoa, Ruby on Rails, Symfony, Zend Framework, Backbone.js, Ember.js, Node.js, jQuery, YUI, XUL, Apache, Nginx, MySQL, MongoDB, Redis, Linux server..., Amazon Web Services, TDD, BDD, Agile, HTML 5, Agile Methodologies, SASS, CSS, Web Development, Distributed Systems, HTML, User Experience, Israeli-Palestinian..., Belly Dance, Mobile Applications, Object Oriented Design, Software Development, iOS development, Git, Front-end, Linux

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In a nutshell

Johnathan Leppert's Personality Type

Introversion (I), Sensing (S), Thinking (T), Perceiving (P)

Average Tenure

1 year(s), 5 month(s)

Johnathan Leppert's Willingness to Change Jobs



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There's 88% chance that Johnathan Leppert is seeking for new opportunities

Johnathan Leppert's Achievements

Hackday Winner - Spyglass

Issued by LinkedIn · November 2012

Hackday Winner - Seahorse

Issued by LinkedIn · January 2013

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