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Hi, I’m Ian Stiefvater. I’m a senior software engineer with broad exposure to frontend, backend, data engineering, and cloud infrastructure, and I’ve built and operated real-time, data-intensive platforms for large-scale workloads. I enjoy solving hard problems at the intersection of data and systems—turning noisy, complex data into reliable, scalable solutions that power decisions for developers and investors. In my work, I blend hands-on coding with system design to deliver pragmatic, high-performance results. I’m energized by high-velocity environments and ambitious, quantitative use cases. Whether it’s real-time ETL, geospatial analytics, or AI-assisted tooling, I thrive on building maintainable architectures, collaborating across cross-functional teams, and continuously improving reliability, observability, and performance.…Hi, I’m Ian Stiefvater. I’m a senior software engineer with broad exposure to frontend, backend, data engineering, and cloud infrastructure, and I’ve built and operated real-time, data-intensive platforms for large-scale workloads. I enjoy solving hard problems at the intersection of data and systems—turning noisy, complex data into reliable, scalable solutions that power decisions for developers and investors. In my work, I blend hands-on coding with system design to deliver pragmatic, high-performance results. I’m energized by high-velocity environments and ambitious, quantitative use cases. Whether it’s real-time ETL, geospatial analytics, or AI-assisted tooling, I thrive on building maintainable architectures, collaborating across cross-functional teams, and continuously improving reliability, observability, and performance.

Ian Stiefvater

Full Stack Developer, DevOps Developer, Web Developer, +2

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Hi, I’m Ian Stiefvater. I’m a senior software engineer with broad exposure to frontend, backend, data engineering, and cloud infrastructure, and I’ve built and operated real-time, data-intensive platforms for large-scale workloads. I enjoy solving hard problems at the intersection of data and systems—turning noisy, complex data into reliable, scalable solutions that power decisions for developers and investors. In my work, I blend hands-on coding with system design to deliver pragmatic, high-performance results. I’m energized by high-velocity environments and ambitious, quantitative use cases. Whether it’s real-time ETL, geospatial analytics, or AI-assisted tooling, I thrive on building maintainable architectures, collaborating across cross-functional teams, and continuously improving reliability, observability, and performance.…Hi, I’m Ian Stiefvater. I’m a senior software engineer with broad exposure to frontend, backend, data engineering, and cloud infrastructure, and I’ve built and operated real-time, data-intensive platforms for large-scale workloads. I enjoy solving hard problems at the intersection of data and systems—turning noisy, complex data into reliable, scalable solutions that power decisions for developers and investors. In my work, I blend hands-on coding with system design to deliver pragmatic, high-performance results. I’m energized by high-velocity environments and ambitious, quantitative use cases. Whether it’s real-time ETL, geospatial analytics, or AI-assisted tooling, I thrive on building maintainable architectures, collaborating across cross-functional teams, and continuously improving reliability, observability, and performance.

Available to hire

Hi, I’m Ian Stiefvater. I’m a senior software engineer with broad exposure to frontend, backend, data engineering, and cloud infrastructure, and I’ve built and operated real-time, data-intensive platforms for large-scale workloads. I enjoy solving hard problems at the intersection of data and systems—turning noisy, complex data into reliable, scalable solutions that power decisions for developers and investors. In my work, I blend hands-on coding with system design to deliver pragmatic, high-performance results.

I’m energized by high-velocity environments and ambitious, quantitative use cases. Whether it’s real-time ETL, geospatial analytics, or AI-assisted tooling, I thrive on building maintainable architectures, collaborating across cross-functional teams, and continuously improving reliability, observability, and performance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Spanish; Castilian

Fluent

Work Experience

Software Developer & Solopreneur at Tango Labs

May 1, 2025 - Present

Designed and implemented a real-time real estate analytics platform in Argentina using React, Node.js (Express), and PostgreSQL, containerized with Docker. Integrated Overpass Turbo and Leaflet for interactive heat maps of property prices by district. Automated data ingestion pipelines with Scrapy and Playwright, deploying scrapers to Google Cloud for monthly updates.

Lead Software Developer & Systems Administrator at Geovalue

June 1, 2025 - Present

Built high-performance scrapers for TikTok, Instagram, and YouTube using Python (BeautifulSoup, Scrapy) and custom JavaScript, reducing data-collection time and boosting accuracy. Developed a Django platform to store, visualize, and drive strategy from scraped data. Created real-time transcription APIs to improve content discoverability. Managed full-stack deployments, CI/CD with Docker, cPanel, Celery, and WebSockets for live UI updates. Handled end-to-end server administration, tuning, security, and troubleshooting.

Solo Founder / Web3 Developer / Full Stack Developer at ViralCoach

July 31, 2024 - August 28, 2025

Conceptualized, developed, and launched QUBOC, a micro SaaS platform automating Ethereum smart contract audits with scalability and high availability hosted on a VM cloud instance. Developed the full software stack with React frontend, Node.js and Flask backend services, MongoDB setup, and robust performance. Configured Linux servers for efficiency and security, managed cloud services, serverless architecture, and continuous deployment workflows. Designed RESTful APIs ensuring system interoperability and secure data transactions.

Founder, CEO & Software Engineer at QUBOC

April 30, 2025 - August 28, 2025

Architected and coded scalable web apps in Django with RESTful APIs linking React/Redux frontends. Managed SQL, MongoDB, and Redis databases, optimizing queries and caching for performance. Designed microservices and serverless functions on AWS Lambda and Azure Functions for event-driven workflows. Automated cloud builds and deployments using AWS CodeBuild and Azure DevOps pipelines. Integrated IoT components using MQTT and Arduino to expand product offerings.

PHP Wordpress Developer at Bonsai Media Group

December 30, 2020 - August 27, 2025

Developed landing pages, e-commerce and front-facing websites with specialization in SEO and inbound marketing strategies. Programmed in PHP and SQL on servers to enhance website functionality and search engine ranking.

Data Engineer at REplace

December 20, 2025 - Present

Renewable energy intelligence platform that transforms the U.S. interconnection queue into actionable data for developers and investors. ● Develop and maintain robust ETL processes that power the core platform. ● Work with large and complex datasets and help design reliable and scalable data pipelines. ● Collaborate with the GIS and backend teams to integrate geospatial and business-critical data. ● Work with LLM and AI-powered tools to interpret unstructured and complex datasets. ● Help design and improve the database architecture following best practices.

Senior Software Engineer at Tel Aviv Renewable Energy Intelligence Platform

December 1, 2025 - Present

Developed and maintained robust ETL processes powering the core platform; collaborated with GIS and backend teams to integrate geospatial data; leveraged AI/LLM tooling to interpret unstructured data and support decision-making; implemented monitoring, logging, and CI/CD pipelines to ensure reliable, scalable operations.

Full Stack Developer at Tango Labs

May 1, 2025 - December 1, 2025

Built an AI-powered platform for workflow orchestration and forecasting using Node.js (Express) and PostgreSQL; integrated OpenAI APIs for content generation and transcription; exposed real-time market data via WebSockets; implemented CI/CD pipelines and Dockerized services on AWS; collaborated closely with product and data teams.

Full Stack Developer at Geo Value

May 1, 2025 - December 1, 2025

Designed Python-based ETL pipelines to scrape, clean, and normalize 150,000+ property listings per month; modeled geospatial data in PostgreSQL (price per m², medians, MoM changes, volatility); implemented near real-time updates via APIs/WebSockets; built an interactive dashboard using React/Express and deployed on AWS.

Full Stack Developer at QUBO C (Bought by Meta Think)

July 1, 2024 - May 1, 2025

Designed and implemented a full-stack MERN-based platform for automated Ethereum smart-contract SaaS; deployed on Linux VMs with security hardening and SSL; built CI/CD pipelines and Dockerized services, orchestrated with Kubernetes; integrated static analysis (e.g., Slither) to produce audit reports.

Founder & Software Engineer at Anchorage

January 1, 2023 - July 1, 2024

Built data-scraping systems for TikTok/Instagram/YouTube using Python (Scrapy, BeautifulSoup) and custom JS extensions; created a Django-based admin to store and visualize scraped data; exposed real-time transcripts via APIs; managed servers, Dockerized environments, Celery queues, and monitoring.

Founder & Engineering Lead at Konnexi

January 1, 2021 - December 1, 2022

Led multiple products (IoT, SaaS, chatbots, e-learning) under a multi-project holding; developed an IoT platform to monitor wind turbines; built embedded Linux gateways interfacing with Arduino devices (C/C++) via MQTT; tuned kernel modules on gateway devices and debugged driver issues for robust communication; deployed telemetry via Kafka/Spark and built real-time dashboards.

Developer at MiCuota Deportiva & MiCuota Escolar

January 1, 2020 - December 1, 2020

Built admin platforms for gyms and schools (accounting, customer management, invoicing, taxes) using PHP Vanilla and MySQL backend; developed responsive UIs and deployed on AWS; implemented data architecture and ETL processes for reporting.

SEO Specialist / Web Developer at Bonsai Media Group

December 1, 2019 - December 1, 2020

Executed SEO audits, backlink strategies, technical SEO, CMS optimization (WordPress) and server optimization; generated Google Data Studio reports; managed PPC and social ads; coordinated projects.

Web Developer & SEO Specialist at Click Profit

March 1, 2019 - April 1, 2020

Performed on-page and off-page SEO; structured content for performance and architecture; developed e-commerce sites on WordPress, Shopify and Prestashop; optimized Core Web Vitals and data-driven site architecture.