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Nicholas Limarsha

Nicholas Limarsha

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Software Engineer

Passionate about building robust, scalable systems with a focus on security, performance, and reliability.

Experiences

  • •Developed and maintained mission-critical applications with high-availability requirements
  • •Worked with buy-side clients on OMS/EMS integrations, trade reconciliation, market-data normalization, and position keeping
  • •Delivered reconciliation automation that cut manual exceptions by ~80% in production environments
  • •Implemented robust security measures including data masking for PII and secure authentication systems
  • •Strong experience with enterprise databases and distributed systems
  • •Proven track record of coordinating with stakeholders and following strict change management processes
  • •Built complex systems requiring real-time processing and multi-factor authentication

Tech Stacks

Core Technologies

Java, Python, TypeScript, React, Spring Boot, REST APIs

Enterprise Systems

Oracle DB, MS SQL Server, Jenkins, WebLogic, JBoss, Windows Server, RHEL

Cloud & Security

OpenShift, Azure, JWT Authentication, SSL/TLS, Data Encryption

Developer

I enjoy creating things that live on the internet and exploring new technologies. I focus on pragmatic, well-tested solutions that balance developer velocity with maintainability and operational resilience.

Languages

  • •Java, Python, JavaScript, TypeScript
  • •HTML, CSS, SQL, Shell Script

Dev Tools

  • •VS Code, IntelliJ IDEA
  • •GitHub, GitLab
  • •Terminal

Frameworks

Spring Boot, React, Next.js, Node.js, Express.js, TensorFlow, PyTorch

Domain & Impact

  • •Experience with buy-side systems: OMS/EMS integrations, trade reconciliation, market-data pipelines, and position keeping
  • •Delivered low-latency data processing and integrations that reduced operational overhead and manual reconciliation steps
  • •Emphasis on secure engineering: data masking, encryption, RBAC, and audit logging for regulated environments
  • •Outcomes: latency improvements, lower exception rates, and clearer operational observability

Technical Skills

Interactive visualization of my technical proficiencies across frontend development, backend systems, financial analysis, and development tools.

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Professional Experience & Achievements

Showcasing key accomplishments, professional experience, and certifications that demonstrate expertise in software development and technical leadership.

Financial Risk Assessment & Regulatory Compliance Platform

development

Led comprehensive IT risk assessments and system audits for commercial banking clients, implementing automated compliance monitoring and reporting systems.

Risk AssessmentRegulatory ComplianceSystem Audit+2 more

Risk Issues Identified

15+

Audit Efficiency Improvement

+20%

Enterprise Data Migration & Deduplication

development

Designed and integrated a comprehensive migration and deduplication process for an electronic pension platform, coordinating stakeholders end-to-end.

JavaSQLETL+2 more

Data accuracy uplift

+30%

Workflow Automation Frameworks

performance

Automated cross-team workflows using Control-M and HashiCorp tooling to reduce operational toil and improve collaboration.

Control-MHashiCorpAutomation+2 more

Manual workflow reduction

-60%

Cloud Microservices Platform Improvements

development

Architected scalable microservices and REST APIs on AWS with Spring Boot and modern frontend stacks.

AWSSpring BootREST APIs+2 more

Platform performance improvement

+25%

Security Remediation & System Integration Testing

performance

Enhanced core applications by remediating vulnerabilities in Java/React services and executing integration testing on Linux and OpenShift.

JavaReactLinux+2 more

Production defect reduction

-30%

Smart Lock System (Facial Recognition + NFC)

innovation

Built a smart lock system using facial recognition and NFC authentication on embedded hardware for a campus environment.

Raspberry PiNVIDIA Jetson Xavier NXOpenCV+2 more

Cost reduction

-70%

My Personal Projects

Here are a few past projects I've worked on

Youtube Personal Trainer

Youtube Personal Trainer

Recommend videos based on users' exercises routines by submitting their exercise videos. First, users will upload their exercise videos. Next, the program will compare with the exercises in the database by matching the particular sequence and similarities from keypoints of the body parts. Then, they will receive recommended videos based on their exercise.

PythonOpenCVTensorFlowMediaPipe
Face Mask Detection

Face Mask Detection

An image-based ML process to identify & annotate whether people are wearing masks. Using a dataset from Kaggle with images of people wearing masks, not wearing masks, or wearing masks incorrectly, along with PASCAL VOC format annotations.

PythonPyTorchOpenCVFaster R-CNN
Search Engine using Wikipedia API

Search Engine using Wikipedia API

A user interface for a search engine that incorporates Wikipedia searching. Built with React and utilizing Wikipedia's API through Axios for seamless data fetching.

ReactWikipedia APIAxiosMaterial-UI
Spring Boot Application for User Authentication

Spring Boot Application for User Authentication

A Spring Boot application that includes user authentication with JWT-based security for user sign up and login with email verification. Features email verification, JWT token authentication, and comprehensive error handling.

Spring BootJWTMySQLJava