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Seva Safris

Seva Safris

Bangkok, Thailand
Member since April 23, 2014
With 20 years of industry experience, Seva is a veteran of both enterprise and startups. A UC Berkeley graduate in EECS and MSE, Seva has confidence in his past accomplishments future endeavors alike. His impressive, fast-track leadership career is marked by proven ability to motivate and lead peak-performing teams as well as achieve remarkable results in architecture and development of efficient, scalable, and fault-tolerant solutions.
Seva is now available for hire
Portfolio
  • Splash Mining, Inc.
    Cryptocurrency (BTC, ETH, ZEC, XMR), React.js, Java, AWS (EC2, ECS, SES, ERC...
  • Ebay
    Scala, Java, React, GCP, BigTable, BigQuery, HBase
  • Glamhive
    Ionic, JavaScript, Angular, Java, Spring
Experience
  • Unix, 18 years
  • Java, 16 years
  • Object-oriented Programming (OOP), 16 years
  • Test-driven Development (TDD), 15 years
  • XML/XSLT, 13 years
  • Agile Software Development, 11 years
  • User Interface (UI), 10 years
  • Git, 5 years
Bangkok, Thailand
Availability
Part-time
Preferred Environment
MacOS, Linux, Eclipse, IntelliJ, Xcode, Vi, Git
The most amazing...
...project I've developed is a beat-tracking algorithm and reference implementation that can detect, track, and extrapolate beats in live audio music streams.
Employment
  • CTO
    Splash Mining, Inc.
    2017 - 2018
    • Developed and directed a technology roadmap from product conceptualization to production in five months.
    • Managed all facets of product development.
    • Architected all facets of the application stack.
    • Implemented full development infrastructure, including development tools, team-working, and collaboration tools.
    • Implemented full containerized, scalable production infrastructure.
    • Led all development meetings, managed projects, prioritized responsibilities, and allocated resources for optimal operational results.
    • Developed the entire back-end for the Splash Mining platform.
    Technologies: Cryptocurrency (BTC, ETH, ZEC, XMR), React.js, Java, AWS (EC2, ECS, SES, ERC, Route53), GCP (SQL, GCR, DNS, Compute Engine, Container Engine), PostgreSQL, MySQL
  • Senior Member of Technical Staff
    Ebay
    2017 - 2017
    • Architected a complex data processing pipeline capable of processing a scale of 800,000,000 messages per day.
    • Implemented a custom, distributed Kafka message consumer using Apache Storm, which was responsible for feeding the message processing pipeline.
    • Integrated StackDriver system monitoring and alerting for production support.
    • Participated as senior developer on a Scala Play-based, highly distributed Kubernetes-containerized application running in GCP. Implemented numerous features and resolved numerous issues intended to improve and expand the functionality of the system.
    • Participated in data model architecture and implementation on GCP's BigTable and BigQuery platforms.
    Technologies: Scala, Java, React, GCP, BigTable, BigQuery, HBase
  • Ionic Framework Mobile Developer
    Glamhive
    2016 - 2016
    • Supported, fixed bugs, and developed new features for an existing Ionic hybrid mobile application in the fashion retail space.
    • Integrated video capture and replay capabilities into the mobile application, supporting both iOS and Android platforms.
    • Upgraded Ionic to the most current revision, requiring subsequent upgrades to connected APIs (Facebook, Google, and Instagram).
    • Implemented OAuth support for Facebook, Google, Instagram, as well as direct email.
    • Aided in the resolution of issues on the back-end (Java, Spring, Hibernate).
    Technologies: Ionic, JavaScript, Angular, Java, Spring
  • Software Developer (Mobile)
    Plum Radio
    2015 - 2015
    • Revised an outdated 32-bit codebase to 64-bit architecture for both iOS and Android implementations of a mobile application in the music entertainment space (streaming radio).
    • Resolved all outstanding platform incompatibility issues with Android Lollipop OS.
    • Upgraded Media APIs in both iOS and Android versions of the application, implemented in the Xamarin cross-platform architecture.
    • Implemented cross-platform logic in Xamarin C# and platform-specific integrations in iOS Objective-C and Android Java.
    • Successfully completed all outstanding platform issues for the application.
    Technologies: iOS, Android, Xamarin
  • CTO
    VNUE Inc
    2015 - 2015
    • Developed and directed a technology roadmap for a consumer-facing product in the music entertainment space.
    • Managed product development in several technology stack verticals.
    • Architected all facets of the web application stack and iOS application stack.
    • Implemented full development infrastructure, including development tools, team-working, and collaboration tools.
    • Implemented full containerized, scalable production infrastructure.
    • Led all development meetings, managed projects, prioritized responsibilities, and allocated resources for optimal operational results.
    Technologies: Java, Go, iOS, MacOS, JavaScript, Ionic, Angluar
  • Adobe Flex/Adobe AIR Developer
    Graphium Health
    2014 - 2015
    • Implemented new features to an existing FLEX/AIR application in the medical practice management space.
    • Resolved numerous outstanding bugs and usability inconsistencies in the FLEX/AIR application.
    • Implemented various auxiliary modules in JavaScript for the FLEX/AIR application to integrate seamlessly in all browsers.
    • Participated in scrum meetings, helping to prioritize development resources for the FLEX/AIR application.
    • Inevitably resolved all outstanding issues and new feature requests for the FLEX/AIR application, thus ending the need for my contract.
    Technologies: Adobe Flex AS3, Adobe AIR
  • CTO
    Smartplane, Inc.
    2014 - 2015
    • Architected and developed the flagship flight-control product for the company, currently revolutionizing the world’s perception of personal airplanes as a viable option for private transport.
    • Directed the flight-control product development to ensure the high standard of technology required for Smartplane's success.
    • Provided strategic and tactical technological direction for the early-stage startup in the aerospace marketplace.
    • Advised product management efforts.
    • Contributed in a hands-on manner in order to develop solutions for the most challenging and critical modules comprising the SmartPlane flight-control application: real-time performance, 100% fault tolerance, and enforcement of impeccable coding practices, utilizing the means of both technological choices and engineering policy directives.
    Technologies: Java, C, C++, Objective-C, JavaScript, Big data
  • VP of Engineering
    LiveCare, Inc.
    2012 - 2014
    • Conceptualized, architected, and developed the flagship application for the pre-IPO medical practice management software company. Successfully launched the product to local practitioners in the SF Bay Area.
    • Blueprinted the product roadmap, managed project operations as well as tactical and strategic direction, and delivered the product to completion. Successfully launched the product to remote practitioners in Singapore and Malaysia.
    • Led a team of local engineers and system operators, engaged with medical practices and individual practitioners for sales, interacted with clients for production support, and gathered feedback for future improvements. Successfully evolved the product to support new customer-requested features.
    • Led a team of remote engineers for the development of front-end HTML and JavaScript components, providing high-level technical architecture for interoperation of all products, components, and presented functionalities. Successfully delivered numerous auxiliary components intended to drive exposure and interest for the product.
    • Implemented all security considerations with utmost scrutiny, taking into account the legal regulation of medical software applications—a challenging and complex facet of technology in the medical space.
    Technologies: Java, Java EE, Adobe Flex, JavaScript, HTML5/CSS3
  • VP of Engineering
    Evolphin Software
    2011 - 2012
    • Architected and developed a revolutionary FLEX/Java Workflow Designer application, with projected revenues of $2 million in 2012. Designed and implemented all UI/UX, live workflow validation algorithms, and failsafe state preservation patterns.
    • Architected and developed a MacOS Finder plugin for visualization of version information of files and folders, with projected added benefit revenue of $500k in 2012. Implemented full product with support for MacOS 10.4, 10.5 & 10.6. Led a team of engineers for the retrofit of Zoom Versioning Application to interface with the plugin based on yielded specs.
    • Owned user-interface and presentation design of all Evolphin products. Led the implementation of key user interfaces for superior user experience. Directed efforts to extend and retrofit existing components in lieu of client feedback. Oversaw tactical solutions to quickly meet the gap of missing functionality for clients' needs.
    • Directed evaluation and consideration of time-to-market vs. technical debt vs. team workload to ensure confidence in developed products and security in client investments. Spearheaded all efforts to encourage high coding standards for the insurance of value in yielded intellectual property.
    • Managed project and bug-tracking tools, mediated code reviews, and promoted or vetoed design decisions when deemed necessary.
    Technologies: Java, J2EE, Adobe Flex, C, C++, Objective C
  • Senior Product Developer
    BlackRock/Barclays Global Investors (BGI)
    2007 - 2011
    • Conceptualized, architected, and developed applications for scientific portfolio management, directly reporting to the portfolio management team.
    • Led a team of senior engineers to deliver industry-leading scientific market analysis solutions for portfolio managers. Implemented numerous systems, modules, and applications used by portfolio managers to drive their investment decisions.
    • Developed strategic and tactical solutions to achieve cross-functional business objectives with an impeccable ability to prioritize engineering effort in order to achieve most efficient and effective time-to-market.
    • Architected a scalable Java platform for applications intended to transition from a former Perl-based codebase, starting a new chapter in quality, usability, and productivity of tools used by portfolio managers daily.
    • Spearheaded full cycle development in the creation of key scientific investment tools used daily by portfolio managers.
    • Held educational training sessions for new innovations, tools, and applications available to scientific portfolio managers at BlackRock/BGI.
    • Directed efforts to minimize operational risk due to possible and actual failure of key components in the portfolio management application chain.
    • Developed regular failover tests to ensure rapid recovery in the event of unexpected failures.
    • Led the evaluation of interfaces with third parties (banks, securities lenders, prime brokers, and custodians) to detect high-risk points and propose failover solutions.
    Technologies: Java, Java EE, Perl, Sybase
  • Architect (Consultant)
    MRG Software
    2005 - 2007
    • Consulted on product conceptualization and PRSD formulation for consumer-facing bond trading and management application Consolers. The product was outsourced for contract-based development in 2008.
    • Consulted on product conceptualization, PRSD formulation, and design, and spurred implementation efforts for a wine and food enthusiast web portal called Cooking with Us.
    • Consulted on product design and implementation of a sports enthusiasts' web portal for Wasserman Media Group.
    • Architected and developed a large-scale enterprise security management system for Exobox Technologies.
    • Designed and implemented an eCommerce website for the client-facing interface for Alphaenco.
    Technologies: ASP .NET, C#, SQL Server, Java, JavaScript
  • Lead Performance Analyst (Consultant)
    The Pacific Exchange
    2004 - 2005
    • Specialized in performance analysis and scalability, taking responsibility for the system performance of PCXPlus, a distributed options trading system for Pacific Exchange.
    • Preserved and mitigated the risk of business functionality and SEC compliance in lieu of performance enhancement efforts.
    • Curated all system and component testing of PCXPlus, ensuring compliant functionality under high-load volumes.
    • Developed strategies for aftermarket trade floor testing to simulate real-world deployments and system interaction.
    • Designed and implemented innovative testing strategies for superior insight into obscure process paths in order to detect bottlenecks and investigate hypotheses.
    Technologies: Java, Java EE, SQL Server
  • Lead Software Engineer
    AOL Time Warner
    2002 - 2004
    • Architected and led the Liberty Alliance Project (LAP) initiative at AOL Time Warner.
    • Spearheaded project development, managed implementation direction, and represented AOL Time Warner at interoperability events hosted by Sun Microsystems.
    • Curated product development and professional services (consulting, training, and support) with specific regard to LAP.
    • Engaged LAP draft specification committee to contend for specification changes in lieu of AOL Time Warner's functional requirements.
    • Represented AOL Time Warner at the 2003 RSA Security Conference in San Francisco.
    Technologies: Java, Java EE, XML, SOAP
  • Software Engineer
    Electronic Arts
    2000 - 2002
    • Engineered web application services for online games at EA.com.
    • Developed applications for online cross-game integration.
    • Performed load and performance testing of web services and products.
    • Implemented customer billing and customer service interfaces for EA.com and Pogo.com.
    • Led product interface design for integration with third-party service providers.
    Technologies: Java, Java EE, WebLogic, Oracle
Experience
  • Cordova-plugin-statusbar-hide-on-startup (Development)
    https://github.com/SevaSafris/cordova-plugin-statusbar-hide-on-startup

    A Cordova/PhoneGap plugin to hide the status bar on startup of the application by adding a declaration to the Info.plist file to set the status bar as hidden by default.

  • Angular-interpolate (Development)
    https://github.com/SevaSafris/angular-interpolate

    A lightweight interpolator that replaces delimited keys in a string with values from a properties map. This module was created as a simple alternative for Angular's $interpolate provider. A common use of this tool is for a template interpolation use-case that does not require $parse, $interpolate, or $compile.

  • Jax-rs-auth-seed (Development)
    https://github.com/SevaSafris/jax-rs-auth-seed

    Why keep reinventing the wheel? The authentication patten has been done over and over again. Get a jump start on implementing your business logic immediately instead of wasting time in making your own.

    This is the back-end component of the angular-auth-seed project. Together, they provide a fully functional platform for authenticated applications based on AngularJS and Java's JAX-RS v2.1 specification. It is a server implementation of the Basic authentication methodology for RESTful applications, written in Java and 100% JAX-RS-compliant. It can be run in servers that implement the JAX-RS 2.1 specification, including Jersey, JBoss RESTEasy, and Restlet. Though any JAX-RS server vendor can be used, I recommend the XRS server, which is a CohesionFirst™ alternative to the JAX-RS 2.1 spec. The XRS server is designed to be ultra lightweight and is configured to run in the Jetty servlet container.

    This is a complete solution, a bug-free and instant "plug-and-play" base to get you started fast and easy. Preconfigured to install the Angular framework, development prerequisites, and testing tools for instant web deployment gratification, this solution can be used to quickly bootstrap your Angular project and dev environment.

  • Angular-auth-seed (Development)
    https://github.com/SevaSafris/angular-auth-seed

    Why do we keep reinventing the wheel? The authentication patten has been done and done again 1,000,000 times. Instead of spending the first two weeks of development on the authentication requirement, get a jump-start on your business logic immediately.

    Created with the highest standard of development in mind, this project uses best practices and patterns to empower the developer to write code that is clear, cohesive, and easily testable.

    The angular-auth-seed project is a complete solution, intended to be bug-free and an instant "plug-and-play" base to get you started quickly and easily. Preconfigured to install the Angular framework, development prerequisites, and testing tools for instant web deployment gratification, this solution can be used to quickly bootstrap your Angular project and dev environment.

  • Object-prototype-filter (Development)
    https://github.com/SevaSafris/object-prototype-filter

    A set of supplementary prototype additions to the Object class that provide filtration functions analogous to that of Array.prototype.filter().

  • Lib4j-dbcp (Development)
    https://github.com/lib4j/lib4j-dbcp

    Lib4j-dbcp allows a developer to configure a connection pool with a standardized XML Schema, which is used by a consumer class to initiate the connection pool. Lib4j-dbcp uses the JAXB framework to significantly reduce boilerplate code, thus providing a lean API with support for the all possible connection pool configuration variations.

    Lib4j-dbcp is based on an XML schema used to specify the formal of XML documents accepted by the configuration consumer. The XML schema is designed to use the full power of XML validation to allow a developer to qiuckly determine errors in his draft. Once a dbcp.xml passes the validation checks, it is almost guaranteed to properly initialize the connection pool configured by the file.

  • Lib4j-cli (Development)
    https://github.com/lib4j/lib4j-cli

    Lib4j-cli allows a developer the full range of variation of the command line arguments pattern, and removes the unnecessary boilerplate code present in other solutions. Lib4j-cli uses the JAXB framework to create a lib4j-cli specification based on a XSD specification, which can be used to create a custom set of CLI options and arguments for any application.

    Lib4j-cli is based on an XML schema that is used to specify the format of XML documents that describe the command line options and arguments accepted by an application. The XML schema is designed to use the full power of XML validation to allow a developer to quickly determine errors in his draft. Once a cli.xml passes the validation checks, it thereafter provides a clear and simple API to access the options and arguments in the code.

  • Relational Database Binding (Development)
    https://github.com/libx4j/rdb/tree/master/jsql

    A Java framework for binding to RDBMS data models. Based on the CohesionFirst™ approach, the RDB framework provides a strongly-typed and cohesive approach to connect the DB tier to the business tier.

    jSQL is an extension to DDLx, offering a lightweight object relational mapping (ORM) solution that runs on the JDBC v4.1 API. The jSQL framework provides strongly-typed semantics for the SQL language as well as a cohesive binding to user data models. jSQL uses a SQL schema defined in a DDLx file to create a one-to-one, object-model-to-data-model API that is vendor agnostic.

    In addition to generating Java classes that bind to a DDL, the jSQL framework offers an API for strongly-typed DML semantics. These APIs come in the form of method invocations that resemble a non-cohesive, string-based SQL alternative.

    Strongly-typed DML semantics are powerful because they extend the power of the Java compiler to realize errors in edit-time or compile-time. Alternatively, if non-cohesive, string-based SQL is used, errors are only presented in runtime upon execution by the application to the database. In addition to binding Java classes to the DDL, jSQL provides a strongly typed approach for the construction of SQL DML.

  • XML Schema Binding (Development)
    https://github.com/libx4j/xsb

    XSB is a Java framework for binding to an XML schema. Based on the CohesionFirst™ approach, the XSB framework provides a complete solution for cohesive integration of Java applications to XML documents via the XML schema. The framework provides a XSB Java source code generator and a XSB runtime to parse and marshal XML documents to and from Java objects. The XSB framework is a complete implementation and covers the entirety of the XSD 1.1 specification.

    XSB supports all directives of the XSD specification, and generates bindings with highest degree of cohesion possible with the Java language.

  • JAX REST Server (Development)
    https://github.com/libx4j/xrs

    XRS is an implementation of the JAX-RS v2.1 specification that runs in a servlet container. This project was inspired with the goal to create a better, simpler, easier to use, reliable, and debugable JAX-RS implementation using the CohesionFirst™ approach.

    XRS was built to implement the JAX-RS v2.1 specification while keeping the internal complexity as low as feasible. Static state is used in but one use-case, so it is never a challenge to debug a request or a response.

    Existing solutions such as Jersey, JBoss RESTEasy, Restlet, Apache CXF, Apache Wink, and others are challenging to work with, because they are buggy, difficult to debug, and are not pure to the JAX-RS specification. Many people experience unnecessary pains using existing JAX-RS implementations. Debugging of JAX-RS servers is especially difficult because of the high internal complexities of the implementations.

    A common pattern that is used in JAX-RS implementations is dynamic method invocation. Dynamic method invocation is powerful, but it comes at a cost: debugability. Dynamic method invocation results in stack-traces that lack information of the specific execution path that led to the exception....

  • JSONx (Development)
    https://github.com/libx4j/jjb

    JSONx is a lightweight framework based on an XSD JSONx schema that allows one to create a schema for JSON classes. To its disadvantage, JavaScript is compiler-less and a highly non-cohesive language that results in errors being realized in runtime. As there does not exist a formalized schema specification for JSON, developers often make repeated mistakes when designing JSON messages, encoding JSON objects, and decoding JSON strings. jJB presents a schema model that can be used to bring errors to edit-time and compile-time, greatly reducing the risk of the same errors to appear in run-time.

    JSONx uses a json.jsonx file that conforms to the JSONx Schema to generate Java beans to bind the JSON classes to Java. The generated classes are strongly typed and offer the full benefits of a cohesive interface to JSON objects in Java. The generated classes can be used to parse and marshal JSON messages, confident that all messages conform to the definition in the JSONx....

  • Seva is a mentor in the Toptal Global Mentor’s Program. This program is a partnership between Toptal and General Assembly to provide high quality mentorship for students from minority and low income backgrounds who are looking to begin their careers as professional software engineers. Seva shows commitment to diversity in tech by mentoring a General Assembly student every week for a year, covering everything from coding tips and tricks to advice on making it in the industry.
Skills
  • Languages
    ActionScript, SQL-99, XML/XSLT, Java, ActionScript 3, XML, Bash, AS3, MXML, HTML, Sh, AppleScript, SQL, UML, HTML5, Scala, CSS, C#, PL/pgSQL, C++, C, Objective-C, CSS3, Stored Procedure, JavaScript, Embedded C, Lisp, PHP
  • Frameworks
    JSP, Ionic, Swiz, JUnit, Adobe Flex, Google Cloud Engine, Bootstrap, ASP.NET MVC, iPhone SDK, AngularJS, Core Data, Cordova, AWS EMR, PhoneGap, .NET, React Native, Ionic 2, Spring MVC, Spring, Spring Security, AWS HA, Spring JDBC, Mono
  • Libraries/APIs
    JDBC, JAXB, PayPal API, Java RMI, Java Servlets, SAX, Twilio API, Stripe Connect, Stripe Connect API, Google Cloud API, Java Security, Core Audio, JNDI, Facebook API, jQuery, Amazon API, Amazon FPS, Stripe, Stripe API, MailChimp API, jsSHA, Facebook iOS SDK, Facebook SDK, Node.js
  • Tools
    Amazon VPC, Vim Text Editor, Hudson, Maven, Balsamiq Mockups, AutoCAD, Eclipse IDE, Jenkins, Servlet, Shell, JIRA, ClearCase, Subversion (SVN), Jetty, Xcode, Git, Google Cloud Console, Microsoft Word, AWS EBS, AWS IAM, AWS Push Notification Service (AWS SNS), Microsoft Excel, Adobe Photoshop, Adobe Illustrator, BitBucket, Chrome Developer Tools, Microsoft Visio, Adobe Audition, Cinema 4D, GitHub, Sendmail, HipChat, Adobe AIR, Slack, AWS SDK, AWS SES, AWS SQS, AWS ECS, SonarQube, Microsoft Project, FishEye, MailChimp, Helm, cURL Command Line Tool, Docker Hub
  • Paradigms
    Agile Software Development, Model View Controller (MVC), Object-oriented Programming (OOP), Pair programming, Object-oriented Design (OOD), Design Patterns, Model driven development, Scrum, Test-driven Development (TDD), REST, Concurrent Programming, Test Automation, Unit Testing, Scalable Application, Layer programming, Procedural programming, Service-oriented Architecture (SOA), Waterfall Development, Responsive Web Design (RWD), Parallel & Distributed Computing, Rapid Prototyping, Functional Programming, UX Design, Incremental development, Modular Development, Responsive Development, Load Testing, HIPAA Compliance, Real-time systems, iOS UI Design, UI Design
  • Platforms
    JBoss, Linux, Java EE, Red Hat Linux, Unix, JSE, iOS, AWS EC2, Embedded Linux, JVM, Mac, Mac OS, Xamarin, WordPress, Drone CI, Kubernetes, Google Cloud SDK, Amazon Web Services (AWS), Oracle, Kernel Programming, Amazon, Docker, Android
  • Storage
    AWS RDS, JavaDB, JSON, MySQL, Apache Derby, PostgreSQL, MariaDB, SQLite, Google Cloud Storage, Google Cloud SQL, RDS, AWS S3, Oracle PL/SQL, PL/SQL Developer, MySQL DBA, Google Cloud, AWS SWF, Cassandra, Microsoft SQL Server, Sybase, Oracle SQL, NoSQL, BigTable, HBase
  • Other
    PhoneGap Plugins, Servlets, SSH, SSL, Multi-language Development, Digital Signal Processing, Maven XML, SOAP, Unix Shell Scripting, System Architecture, Multithreading, Integration, Project Design, Project Planning, Cryptocurrency, Cryptocurrency Wallets, Cryptocurrency Development, Dash Cryptocurrency, Healthcare Management Systems, Health & Wellness, GNU, Audio Editing, Embedded Systems, Web App Development, AJAX, Prototyping, User Interface (UI), User Experience (UX), SSL certificates, Audio mastering, WordPress Plugins, Gitolite, Webhook, Project Management, Technical Project Management, PCI Compliance, Stripe Payments, Kerberos
Education
  • Bachelor's of Science degree in Electrical Engineering & Computer Science, and Material Science & Engineering
    UC Berkeley - Berkeley, CA
    2004 - 2006
  • Incomplete degree in Software Engineering
    Notre Dame de Namur University - Belmont, CA
    2001 - 2002
  • Incomplete degree in Computer Science
    University of Minnesota Institute of Technology - Minneapolis, MN
    1999 - 2000
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