# Jonathan Sims

> Senior Software Engineer @ Trayd | Founder of The Reciproc8 Project | Ex-Goldman Sachs Engineer

Location: New York City Metropolitan Area, United States
Profile: https://flows.cv/jonathansims

I'm a senior software engineer at Trayd, building the back-office operating system for construction. I previously spent nearly 7 years at Goldman Sachs engineering low-latency trading systems, risk infrastructure, and compliance tooling used directly by trading desks.

At Goldman, I modernized pre-trade quoting platforms, re-architected risk data pipelines, led UI architecture for global trading applications, automated regulatory workflows, and eliminated technical debt through systematic platform modernization.

Alongside my engineering work, I'm the founder of The Reciproc8 Project, a reciprocity-driven marketplace designed to help communities circulate skills, services, and resources without relying solely on cash. Currently piloting partnerships, developing the platform, and testing real-world exchange models.

I'm passionate about: marketplace and network-effect products, financial infrastructure and economic systems, and tools that increase access, efficiency, and community resilience.

Outside of engineering, I train Muay Thai, and focus on personal development and community building. Always open to collaborating with founders, operators, and community organizations working on meaningful systems.

## Work Experience
### Senior Software Engineer @ Trayd: Construction Payroll, HR, & Compliance
Jan 2026 – Present | New York City Metropolitan Area

### Founder @ The Reciproc8 Project
Jan 2025 – Present
- Building a reciprocity-based marketplace enabling skill and service exchange without direct monetary payment
- Designing platform architecture and exchange workflows
- Piloting community partnerships and live bartering events
- Developing network-effect growth strategy for local ecosystems

### Associate | Global Credit Technology @ Goldman Sachs
Jan 2022 – Jan 2026 | New York City Metropolitan Area
- Modernized pre-trade quoting infrastructure (React, TypeScript, Java), reducing latency 35% and improving execution accuracy for trading desks
- Eliminated $250K+ in annual technical debt by decommissioning legacy workflows and streamlining CI/CD pipelines
- Built regulatory control framework for fixed-income applications, reducing compliance violations 20%
- Led front-end architecture for a global trading platform, increasing trader engagement 40% and reducing user error 25%
- Re-architected portfolio risk data pipelines, improving data accuracy 40% and cutting processing time 50%
- Designed bulk trade termination workflows with traders, increasing desk efficiency 30%
- Contributed to firmwide resiliency initiatives across Java and React production systems

### Analyst | Securities Supervisory Technology @ Goldman Sachs
Jan 2019 – Jan 2022 | New York City Metropolitan Area
- Delivered bulk trading capabilities for new securities, increasing order throughput 25%
- Implemented enhanced data protection and entitlement controls for sensitive client workflows
- Introduced integration testing for Java/Spring Boot services, improving system stability 20%

### Summer Analyst @ Goldman Sachs
Jan 2018 – Jan 2018 | Greater New York City Area
-Ported and uplifted an application for supervisors from Angular to React.js
-Drafted trends for employee metrics based off of user feedback

### Senior Developer @ Auburn University
Jan 2017 – Jan 2017
• Constructed a new version of the university’s system registration system.
• Conducted team testing sessions
• Mentored incoming junior developers through their training process
• Led a team of developers throughout the semester
• Instructed seminars during ‘boot camp’ on core concepts for junior developers.
• Interacted directly with clients to refine requirements, showcase current applications, and discuss the preliminaries of a new application.

### Developer @ Auburn University
Jan 2017 – Jan 2017 | Auburn, Alabama Area
• Maintained voting application used for the campus-wide SGA elections
• Increased the efficiency of generating a population for voting application by implementing stored procedures
• Developed results page for voting application
• Met and communicated directly with a client to discuss the preliminaries of a new web application

### Junior Developer @ Auburn University
Jan 2016 – Jan 2016 | Auburn, Alabama Area
• Learned core web development concepts, including HMTL, JavaScript, CSS and the .Net MVC architecture
• Developed generic polling application with Senior Developer
• Designed a feature of the polling application to allow the creators of the poll to record/survey the data in real time using SignalR


## Education
### Bachelor’s Degree in Software Engineering
Auburn University
Jan 2014 – Jan 2019


## Contact & Social
- LinkedIn: https://linkedin.com/in/jonathan-sims

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Source: https://flows.cv/jonathansims
JSON Resume: https://flows.cv/jonathansims/resume.json
Last updated: 2026-04-01