Quantitative developer and software engineer

I build tools for research, data, trading, and creative side projects.

I build investment research tools, trading workflows, data platforms, and creative products across quant, AI, full-stack, and hardware-inspired experiments.

research-console
Jonathan Paraschou

Current work

Quant research infrastructure

Optimize
Model
Ship
capabilities.ts
const engineer = {
  builds: ["systems", "interfaces", "models"],
  focus: "technical depth + clear interfaces",
  output: "research and workflow tools"
};

5+

years writing production software

18

tools used across data, AI, and full stack work

3

domains: investments, industrial data, and trading

Areas of work

A mix of backend systems, data work, interfaces, and applied AI.

Quantitative systems

Portfolio construction, optimization workflows, factor models, and analytical tooling for research teams.

Product engineering

Interfaces, services, and internal tools for teams working through detailed technical and operational workflows.

Data infrastructure

ETL pipelines, trade processing integrations, GraphQL APIs, and storage layers for high-volume domain data.

AI experimentation

LLM-enabled research tooling, LangChain prototypes, and automation experiments tied to concrete developer needs.

Work history

Professional work across finance, industrial data, and trading.

From investment operations to industrial telemetry and trading systems, I have mostly worked close to domain experts and the systems they use every day.

Thrivent logo

Quantitative Developer

Jan 2026 - Present

Thrivent

Building R packages, analytical applications, and internal research tools for portfolio managers and quantitative analysts. Focused on convex optimization, factor modeling, risk modeling, and AI-driven research infrastructure.

RPython
Thrivent logo

Software Engineer

Jul 2025 - Jan 2026

Thrivent

Designed microservices, ETL pipelines, and web apps that support trading operations across BlackRock Aladdin, Bloomberg, accounting, operations, and front-office systems.

JavaSpring BootNext.jsInformaticaAWSPython
Emerson logo

Software Engineer

Jun 2023 - Jul 2025

Emerson

Built industrial data and visualization platforms, scalable backend services, time-series exploration tools, and LLM capabilities for internal machine learning infrastructure.

ReactAngularjQueryTypeScriptMongoDBSpring BootJavaDockerC++PythonLangChainGraphQLPostgreSQL
Prognos Trading LLC logo

Software Engineer

Jan 2022 - Dec 2023

Prognos Trading LLC

Developed backend services and data systems for a real-time trading platform, supporting market data processing and quantitative research workflows.

NodeTypeScriptGraphQLMongoDB
Aspen Technology logo

Software Engineer Intern

Jun 2023 - Aug 2023

Aspen Technology

Built features for industrial time-series visualization and helped improve data querying, dashboard performance, and application reliability.

C#C#.NET.NETPostgreSQL
Stealth Startup logo

Software Engineer Intern

Jan 2021 - Jun 2021

Stealth Startup

Worked on backend systems, database development, Python automation, and internal process tooling for an early blockchain startup.

PythonMongoDB

Contact

I'm always open to a good technical conversation.

I'm interested in quantitative engineering, AI-enabled research workflows, internal platforms, and products with a strong engineering component.