James D. Flesher

James D. Flesher

Software Engineer & Technical Leader

Charleston, SC

About

I've spent over 28 years building software that matters — from classified systems for the intelligence community to SaaS platforms serving millions of users. Along the way, I've led engineering teams, architected cloud migrations at massive scale, and developed a knack for making complex technical problems feel solvable.

In 2026 I founded NueInk Software, a consultancy focused on custom development, cloud architecture, and technical leadership. I'm driven by the belief that the best software comes from deep collaboration, clear thinking, and teams that actually enjoy what they build.

Experience

NueInk Software 2026 – Present
Founder & Principal Engineer
  • Founded a software consultancy delivering custom development, cloud architecture, and technical leadership
  • Full-stack engineering across modern web, mobile, and cloud platforms
  • Advising organizations on modernization strategy, security posture, and team scaling
LuminateHealth Feb 2022 – Present
Senior Full Stack Developer / Engineering Manager
  • Member of the leadership team alongside co-founders, contributing to product direction and organizational strategy
  • Managing engineers, providing technical guidance, mentorship, and career development support
  • Providing system architecture, development, and testing expertise to the product owner
  • Developed commerce web application allowing patients to order lab tests online using Expo / React Native
  • Developing a native application using the Expo platform for patients to view lab results
  • New feature development and maintenance of existing Vue single page application used by administrators to support patients
  • Research, implementation, and organization of multiple projects in JIRA to manage deliverables across complex customer integrations
  • Conducting code reviews, production releases with rollback strategies, and root cause analysis providing thorough details and remediation options
  • Conducting interviews to support development team growth ensuring candidates are both a technical and cultural fit
Formstack May 2019 – Feb 2022
Senior Full Stack Developer / Tech Lead
  • Performed as Tech Lead providing system architecture, development, and testing expertise to the product owner
  • Conducted code reviews for commits submitted by developers
  • Performed root cause analysis for production issues providing thorough details for cause of failures and options for resolution and remediation
  • Responsible for promotion of features and defect remediations throughout lower environments, orchestrating testing sessions prior to release to production
  • Responsible for conducting production releases including rollback strategies
  • Conducted interviews to support development team growth ensuring candidates are both a technical and cultural fit
  • Provided technical guidance for team members
InsureSign Nov 2018 – May 2019
Tech Lead
  • Responsible for continued feature development and support for InsureSign's cloud-based SaaS e-signature platform hosted exclusively on AWS
  • Established procedures and practices for disciplined software engineering including separation of concerns, encapsulation, data flow diagrams, activity and class diagrams, and task breakdown
  • Established code quality measures with compile-time static analysis using PMD, Checkstyle, Spotbugs (FindBugs), CodeNarc, and Sonar evaluations
  • Implemented unit tests and began refactoring and re-architecting the software to support unit, integration, and component testable software
  • Researched and implemented a local AWS development deployment strategy using LocalStack to support integration and component testing
  • Development of Lambda functions for new features and defect remediation
  • Developed a webhook-style callback feature for integrating customers to provide realtime responsiveness to document and signature events
  • Enhanced Chargify webhook callback processing to support additional event type handling
  • Provided technical guidance for team members developing the UI using React / Redux
  • Conducted code reviews, production releases with rollback strategies, and root cause analysis
  • Executed performance improvement plans for team members and provided feedback to the business owner
Booz Allen Hamilton / SPARC Jun 2014 – Nov 2018
Tech Lead / Senior Software Engineer
  • Managed development team supporting release delivery milestones, release management planning, requirements gathering, story development, software design documentation, and implementation
  • Performed as a career manager providing guidance in peer career development, conducted annual reviews, and provided monthly feedback on performance and advancement
  • Exam Destination: Developed an overlay technology for local Spring Boot development with Weblogic production deployment. Microservice built in Java using Spring Boot 2 with RESTful API secured via JWT. UI developed with React, Webpack, and Babel. Implemented strict code coverage and build-time static analysis (CodeNarc, Checkstyle, PMD, FindBugs). Quality measures resulted in a single defect reaching production over two releases
  • E-Folder Content Migration: Architected and executed an 800TB file content migration from FileNet to Amazon S3, delivering $100M+ annual cost savings. Implemented Discovery Client/Server integration for dynamic scaling and redundancy. Built custom health monitoring using Spring Health Indicators and Dropwizard Metrics. Developed monitoring console using JMX connectors for real-time application visibility. Throughput managed using Spring Thread Pool Managers and task threads
  • Exam Management: Supported development to decrease Veteran claim processing times. Developed messaging protocol architecture using Spring Integration to read messages off JMS Queue with Spring Application Event Publisher for event-driven processing. Used Hazelcast for session and application-level caching. Developed data feed ingestion component using Spring Batch for scheduled task-oriented jobs. SOAP used for secure external data resource communication
  • Designed and supported deployment of a data synchronization component for VBMS using Spring Batch to improve application performance
SAIC Aug 2006 – Dec 2014
Software Design Engineer IV
  • Responsible for requirements gathering, analysis, ROM estimates, POA&M, software documentation (SDD, Test Plans, User Guides), database design, OOP, multi-tiered application development, systems administration, hardening, and accreditation
  • DCGS-MC: Developed Java-based web application to record and distribute intelligence information using JBoss Application Server. Built PostgreSQL data store and web services for inter-system communication. Designed network separation solutions for system security. Redesigned multi-page web application to single page application using JQuery and REST-style web service calls. Designed WCF Windows service to process NITF files and produce thumbnails
  • TacMobile Web: Developed and maintained .NET web application and Windows service facilitating Single Sign-On across multiple supported systems. Developed SharePoint 2007 features, custom workflows, lists, and sites for several supported projects
  • TEG-RWS: Developed ASP.NET help desk application for tracking, maintaining, and reporting trouble tickets
  • JTCW: Developed ASP.NET application for electronic registration and end user agreements with Active-X control for digital signature support
  • Provided SME support for application development, system architecture, testing, and troubleshooting. Organized analysis of alternatives events and reported findings to stakeholders
  • Addressed high-level design issues of current and future products and technologies to ensure longevity of overall system architecture
  • Established quality assurance standards and conducted code and system reviews
Byte Solutions Nov 2004 – Aug 2006
Engineer
  • Software development for multiple customers utilizing various applications and platforms
  • Developed Windows application providing a management interface for reviewing and applying file security permissions using Visual Basic .NET
  • Developed Windows application and .NET Remoting service to extend Bloomberg data access from a single license to multiple workstations
  • Directory integration, server implementation and management, client router and firewall management, systems administration and patching
  • Built, managed, and maintained VOIP PBX systems for clients. Implemented backup strategy and participated in disaster recovery planning
ChoicePoint Feb 2003 – Nov 2004
Developer
  • Implemented modifications to billing system
  • Designed, developed, and implemented customized software packages
  • Ran statistical reports and provided hardware and software support
American Traveler May 2001 – Jan 2003
Programmer / Network Administrator
  • Designed, developed, and implemented customized software packages and statistical reports
  • Managed firewall, performed systems administration and patching of all servers and workstations
  • Participated and performed physical and logical network infrastructure expansion
  • Implemented and maintained backup strategy and participated in disaster recovery planning
South Carolina Pipeline Jun 1998 – Apr 2001
Programmer / Network Administrator
  • Designed, developed, and implemented a data collection system and estimation system
  • Replaced legacy software and maintained billing system
  • Project coordinator, upgraded network infrastructure, and organized cable installation
  • Provided server and workstation administration, patching, hardware and software support
  • Implemented and maintained backup strategy and participated in disaster recovery planning and execution

Skills & Technology

Languages & Frameworks

Java JavaScript TypeScript C# Visual Basic .NET Python COBOL Node.js React React Native Angular Vue JQuery Ajax HTML / CSS ASP / ASP.NET XML / XSL Webpack Babel Kendo UI Telerik

Backend & Middleware

Spring Boot Spring Integration Spring Batch Spring Boot Admin Eureka / Ribbon Seam .NET / WCF .NET Remoting Windows / Web Services REST APIs GraphQL SOAP JBoss Application Server Weblogic IIS Hazelcast Microsoft Enterprise Library

Cloud & Infrastructure

AWS Lambda S3 DynamoDB Cognito EC2 / Elastic Beanstalk Fargate SQS / SNS CloudWatch Docker LocalStack Kubernetes Terraform CloudFormation VMware ESX Linux CI/CD GitHub Actions Jenkins

Data & Integration

SQL Server PostgreSQL Oracle MySQL MongoDB MS Access Elasticsearch Alfresco MS SQL Reporting Services Stripe ETL / Data Pipelines

Testing & Quality

Spock WireMock JUnit Jest Cypress PMD Checkstyle Spotbugs / FindBugs CodeNarc Sonar TDD

Tools & Collaboration

Visual Studio JBoss Developer Studio JIRA SharePoint SharePoint Designer Visio InfoPath Microsoft Project Server Visual SourceSafe IBM ClearQuest IBM ClearCase IBM RequisitePro

Systems & Security

ISA Server MS Threat Management Gateway WatchGuard Firewalls Symantec Antivirus Symantec Backup Exec MS Data Protection Manager Systems Hardening Disaster Recovery

Hardware

SAN External Drive Arrays Fiber Switches Blade Chassis Switches / Routers Wireless Access Points Tape Drive Libraries

Practices

Agile / Scrum Technical Leadership System Design Security Architecture Code Review Mentoring DevOps Microservices

Credentials

Certification
CISSP
ISC2, 2011 — Certified Information Systems Security Professional
Education
B.T. Computer Science
Charleston Southern University, 2011 — GPA 3.62, Outstanding Graduate
Education
A.S. Computer Science
Trident Technical College, 1998

Get in Touch

Interested in working together or just want to connect? I'd love to hear from you.