# David Oelfke — Work History

Staff-level software engineer and technical leader with 20+ years of experience building and scaling SaaS, marketplace, AI, cloud, and developer-platform products. Hands-on across architecture, full-stack development, platform engineering, security, release systems, and team leadership, with recent depth in TypeScript, React, Next.js, Node.js, Python, LLMs, and data pipelines on AWS and Azure. Proven record leading 0-to-1 launches, modernizing legacy systems, improving engineering throughput, and delivering reliable products for top startups and enterprise organizations including Microsoft.

## Experience

### SwiftSignl / JoBound — Founder & CTO (Dec 2025 – Present)

- Founded SwiftSignl and architected JoBound, an AI-assisted job aggregation platform for remote software engineers.
- Built 20+ ATS integrations to surface newly posted roles quickly, helping engineers apply before listings became saturated and improving their odds of early recruiter review.
- Developed a proprietary, low-cost data pipeline to identify ATS customer lists and generate targeted lead intelligence.
- Shipped an end-to-end platform spanning two websites, two applications, an API, and a local AI server on near-zero infrastructure spend.
- Acquired 50+ users on launch day and sustained organic growth without paid acquisition.
Domains: JoBound.io

### Freelance — Staff Software Engineer (Apr 2023 – Nov 2025)

- Served as a staff-level technical lead across Onbrand, Sibble & Associates, Trayd, Upwell, Sayari, and Qloo, owning architecture, execution, and product direction.
- Led launches and critical product initiatives, including last-mile delivery that helped Trayd complete Y Combinator and launch successfully.
- Re-architected frontends and built secure collaboration and workflow systems, including invoicing, scheduling, and other business-critical capabilities.
- Designed an AI reinforcement system at Sayari to improve data quality in a complex data pipeline.
- Implemented AI-generated dashboard summaries at Qloo and introduced engineering metrics and internal tooling, helping double team throughput.
- Led a monorepo migration across 5-6 sub-repos for a roughly 10-engineer team, adding TypeScript, CI, feature flags, and build alerting to improve release safety.
Domains: OnbrandPLM.com, BuildTrayd.com, SibbleAssociates.com, Upwell.com, Sayari.com, Qloo.com

### Microsoft — Principal Software Engineer / Lead (May 2021 – Apr 2023)

- Led security, web platform, and release-engineering initiatives across Azure-facing teams spanning dozens of teams and roughly 2,000 engineers.
- Improved engineering operating cadence and cross-team coordination across the Azure organization.
- Reduced Azure pull request turnaround time from about one week to two days by improving engineering workflows and review practices.
- Drove safer releases by enabling automated rollout and rollback based on engineer-defined live metrics and error signals.
- Reorganized teams around full-stack ownership to increase delivery velocity and reduce handoff friction.
- Influenced developer hardware standards across the organization.
Domains: Portal.Azure.com

### Rocket Insights — Principal Software Engineer (Nov 2017 – May 2021)

- Led architecture and delivery for 15+ product launches across multiple industries.
- Hired and mentored engineers as the organization scaled, increasing technical quality and delivery capacity.
- Helped establish the company's West Coast presence and expand its client footprint.
- Built a reusable framework adopted across multiple client engagements to accelerate delivery and strengthen engineering practices.
Domains: RocketInsights.com, DeptAgency.com

### Buildium — Senior Software Engineering Manager (Dec 2013 – Nov 2017)

- Led engineering for the accounting platform and managed multiple teams in a business-critical domain.
- Improved planning discipline and delivery predictability across teams.
- Modernized front-end engineering practices across the organization.
- Helped lead the AWS migration and establish DevOps practices across engineering teams.
- Drove security improvements and earned more bug bounty awards than anyone else in the organization.
Domains: Buildium.com

### RLS2000.com — CTO (Nov 2010 – Dec 2013)

- Led multiple greenfield initiatives with end-to-end ownership across engineering and IT.
- Migrated infrastructure to a scalable, highly available architecture with redundancy across critical services.
- Modernized IT operations and software development practices to improve reliability and delivery.
Domains: TryElevate.com

### TSD — Lead / Senior Software Engineer (Nov 2012 – Jun 2013)

- Led development of TSD Loaner, architected WebDRIVE, and delivered the company's first mobile applications.
- Introduced responsive web design and modernized the Loaner user experience.
- Identified and resolved major security issues across critical applications.
- Raised engineering standards and strengthened engineering culture.
- Oversaw development of the public website.
Domains: TSDWeb.com

### EMC — Software Engineer (Jan 2007 – Nov 2010)

- Owned development, administration, and support for internal and third-party web applications and engineering tools.
Domains: Dell.com

### Computers Down Under — Bench Manager (Oct 2003 – Dec 2007)

- Managed day-to-day store operations, technician oversight, and customer-facing workflows.
- Improved processes to increase profitability, productivity, and service quality.

See full interactive work history at: https://davidoelfke.dev/my-work