Mark Grand

advmk4@r.postjobfree.com

404-***-****

SUMMARY

I design and build solutions to business and technical problems, always with an awareness of security. Comfortable in a wide range of roles from speaking at conferences to creating architecture, writing white papers, leading teams, heads down coding, designing databases or general troubleshooting.

High-Level SKILLS

● Software Development & Technical Leadership

● GCP Certified Professional Cloud Architect

● Cloud / Application Security

● Blockchain

● Object Oriented Design Guru

● Experienced in Retail, eCommerce, Travel, Logistics, Health Care, Credit Card Processing, Facilities Management & Accounting.

● Database Design

● Technology Evangelist and Book Author

PROFESSIONAL EXPERIENCE

3/2022 to Present, Topl (a level 1 blockchain startup) Engineering Manager

Accomplishments

● Built a team of top notch remote international Scala engineers and a PM.

● Contributed to the vision and architecture of the Topl blockchain level 1 protocol.

● Integration with DAML

● Designed DevOps and cloud (GCP) architecture.

● Various process improvements.

Responsibilities

● Hire engineers and PM

● Conduct performance reviews.

● Act as team lead for the group building Topl’s SDK, reviewing and writing Scala code and documentation.

● Periodic 1:1 meetings with all people reporting to me. 10/2021 to 2/2022, JFrog

Senior Blockchain Engineer

● Worked on Pyrsia, a Rust-based open source software for securing the software supply chain (https://pyrsia.io/).

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Accomplishments

● Created a distributed architecture based on a blockchain, bittorrent and libp2p protocols including kademlia and gossipsub.

● Contributed to rust based implementation.

3/2020 to 9/2021, Cognizant

Principal Software Engineer(Associate Director)

● Architected and led the implementation of a rewrite of the back end of Game of Pods, an internal system used to manage cross-functional teams and to coordinate educational and idea-sharing events .

Accomplishments

● Created a microservices based architecture on GCP and oversaw its implementation.

● Designed a development process based on feature releases rather than calendar-based big bang releases.

● Worked closely with the product team to ensure that features are designed in a way that will allow them to scale up to a few hundred thousand users.

● Created a fine-grained permission mechanism (content based) to control user’s access to individual resources and support multiple tenants.

● Used an eventual-consistency approach using NOSQL databases and message queues to ensure that no back-end service is ever waiting for another back-end service.

● Lead 5 development teams.

● Earned GCP professional architect certification. Responsibilities

● Document architecture. Conduct a meeting each sprint to ensure team members understand the architectural details they will deal with in the next sprint.

● Write Jira tickets; configure databases and data cleanup; and devOps.

● Troubleshoot issues that developers brought to me

● Reviewed code

● Acted as database admin at the project’s start, there was no one else.

● Helped organize the team that I was the first member of. Team members spanned four countries and three time zones.

● Managed the Github repository and GCP cloudOps.

Technologies

GCP, .NET (C#), JavaScript, Kubernetes, Istio, Pubsub, PostgreSQL, CouchDB, Tekton, Flux, Terraform, JWT, OIDC, Github, Buildpacks

9/2019 to 2/2020 The Home Depot

Principal Software Engineer (contract)

Did PoCs to evaluate strategies for improving the performance of services related to merchandising.

Accomplishments

● Created a .jar file whose inclusion in a build along with some Spring configuration enabled metrics and distributed tracing for Spring Boot based services.

● Developed a microservice to consolidate messages to and results from some heavily used services. Standard metrics like CPU and memory usage were not adequate for auto-scaling this. The custom metric of the number of pending requests was much better for this purpose

● Did a PoC using CouchDB replication to speed the distribution of changes to product information from a central Cassandra database to stores. Responsibilities

● Write progress and final reports for PoCs

● Evaluate IAMS products.

Technologies

Java, Spring Boot, Spring Cloud Sleuth, Spring Metrics, Micrometer, StackDriver, Google Compute Engine, NeoLoad, CouchDB, JUnit, JMockit, Maven, Gradle 2/2016 to 9/2019, HCL America

Senior Solutions Architect

● A multi-billion dollar bricks-and-mortar retail chain wanted to develop an infrastructure and framework for becoming digital. Accomplishments

● Developed security architecture to cover cloud computing for a combination of store-based computing, enterprise applications and a mobile app.

● Worked with the established IT organization to manage process changes for things like certificate management and user identity management. Responsibilities

● Participated in requirements gathering and documentation

● Created and documented security architecture.

● Create helm charts to support deployment of services/applications into secured kubernetes clusters.

● Work with a devOps engineer to configure infrastructure for security architecture. Technologies

AWS, cognito, JWT, Auth0, OpenSSL, EKS, Kubernetes, Istio, Amazon API Gateway, DNS, TLS, X.509, microservices, Lambda.

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● Architect for a loyalty rewards and customer communication program for Papa Johns

(Microservices, Java, REST, GCP, pubsub, Spring boot, Springfox, Openapi/Swagger). Improved team’s use of agile practices.

● Solutions architect responsible for writing technical content and project plans for customer proposals for large projects.

● Blockchain solution principal and evangelist: Architect of Blockchain Application Platform

(Microservices, cryptography, security, OpenAPI).

● Wrote an open source cryptography package that cannot be broken by brute force to support blockchain.

● Planned 2020 supply chain IT landscape/road-map for Intel.

● Performance tune a Java based custom pricing application for FedEX. 6/2015 to 12/2015, Deloitte Consulting

Senior Software Architect (Contract)

● Architected an analytics platform that includes a data warehouse, REST service and Angular based UI for iPad. (Java, Spring, SQL Server, Swagger, gson, SAML, snowflake schema, Scala, Spark, Cassandra).

● Selected India team members. Wrote Jira tickets. Reviewed code.

● Created an agile process for database development. (Liquibase) 2/2015 to 5/2015 The Weather Company

Scala Engineer (Contract)

● Developed a program to recognize and capture weather-related tweets (Scala, Cassandra, Play, Akka)

● Analyze events from mobile devices (Scala, Spark, Cassandra, AWS, MongoDB) 9/2014 to 2/2015, InComm

Senior Software Architect (Contract)

● On-site lead for India-based development team extending a home-grown ESB to orchestrate new business processes. Extended ESB to support atomic transactions that span multiple messages. (Java, Spring, tomcat, SOAP, REST, JSON, CXF, wadl). 5/2013 to 8/2014, Bridge2 Solutions

Solutions Architect

● Lead on-site and off-shore construction & maintenance of platforms to sell travel and gift cards paid for with credit card rewards (Java, Spring, tomcat, SqlServer, SAML, SOAP, CXF, Axis, SSL, JavaScript, MongoDB, PCI, Hibernate). Team sizes 3 to 7.

● Architect a price calculation service. Mentored off-shore implementation team.(Java, REST, Spring, Design Patterns).

● Drove adoption of new tools and improved practices (Enterprise Architect, function point counting, JMockit, ...).

1/2009 to 4/2013, Emory University’s Center for Comprehensive Informatics, A Biomedical Informatics Research Center

System Research Architect

● Architect & Implement inter-institutional data authorization management (Scala, Play, hibernate, javaScript, caGrid, SAML, XACML, mySql, postgreSql, VMWare).

● Software to analyze medical records from a data warehouse to reduce readmissions using temporal relationships & metadata. (Java, SQL, Oracle, Spring, Scala, HIPAA).

● Find and fix holes in inter-enterprise security architecture. (tomcat, bouncycastle) Mark Grand Page 5 of 5

TECHNICAL SKILLS

Database

Aerospike, SqlServer, Oracle, PostgreSQL,

CouchDB, mySql, UnQLite, Cassandra, SQL,

Hibernate, JDBC, Liquibase, Big Query

Design Tools

Enterprise Architect, System Architect, Together

Methodologies

Scrum, Object Oriented Design, Agile Methods,

Use Cases, Data Driven Design, Feature Driven

Design, Test Driven Design

Languages

Java, Scala, C, JavaScript, Node.js, Perl, Python, APL, COBOL, Pascal, MainSail, LISP

Web

HTML, CSS3, Lift, Play, Spray client,

Servlets, Axis, JSP, Struts, applets

XML/JSON

XML, XML Schema, XSLT, XStream

SAML, XACML, DTD, gson, swagger / OpenAPI

Cloud

Google Cloud Platform, AWS, Kubernetes, Istio,

Tekton, Flux

Productivity Applications

Microsoft Word, PowerPoint, Excel, MS Project

Open Office, QuickBooks, Google Apps

Other

EDI (X12 and EDIFACT), PlantUML,

Eclipse, emacs, JProbe, OptimizeIt, JProfiler

Maven, Ivy, ant, subversion, git, cvs, Jenkins

Spring, Spring boot, Springfox, JMeter, Oxygen,

Swing, Akka, Spark, Jmeter, JUnit, JMockit,

Mockito, Function Point Counting, Camel, Jira

FrameMaker, YACC, public speaking, Docker,

courseware authoring, Crytography, API Gateway

HIPAA compliance, PCI, Project risk analysis

Operating Systems

LINUX, VMWare, CENTOS, MS-Windows, VMS

Networking

RMI, CORBA, SOAP, CXF, Axis, REST,

TCP/IP, sockets, streams

EDUCATION

B.S. Computer Science, Syracuse University.

Patents

Defensive Disclosure:

Mechanism to Restrict the User of a Removable Storage Device to Only Authorized Computers. PUBLICATIONS

Visual Basic Design Patterns, John Wiley & Sons, July 2005 Patterns in Java, Volume 1, Second Edition, John Wiley & Sons, September 2002 Java Enterprise Design Patterns, John Wiley & Sons, November 2001 Patterns in Java, Volume 2, John Wiley & Sons, September 1998 Patterns in Java, Volume 1, John Wiley & Sons, April 1998 Java Fundamental Classes Reference, O'Reilly & Associates, May, 1997 Java Reference Manual, O'Reilly & Associates, January, 1997 AFFILIATIONS

Mensa.

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