Remote: Yes
Willing to relocate: Prefer to stay in the Bay Area
Seeking: Founding / founding product engineer roles
Technologies: TypeScript, React, Node (Fastify, tRPC), Next.js, Ruby on Rails, PostgreSQL, AWS, Claude Code / multi-agent AI workflows, LangChain, Langflow
16 years full stack, 10+ of them building 0-to-1 products directly with founders. - 2026: Ported a HIPAA-regulated healthcare SaaS platform from Supabase to TypeScript on AWS: Fastify/tRPC, React, PostgreSQL row-level security, WorkOS. 169 merged PRs. Built the multi-agent AI workflows that ported hundreds of endpoints with verification. - 2025: Built GoodBruce (https://goodbruce.com), an AI marketplace proof of concept. Won the DataStax/Langflow Hacking Agents Hackathon at Cloudflare (March 2025). - 2019: Built the Geosite (geosite.io) beta and foundation before it entered Y Combinator.
Résumé/CV: https://valdezm.com | https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Remote: Yes Willing to relocate: Maybe, but planning on staying in Bay Area
Technologies: 15 years full stack - react and ruby, etc.(spent more time in fullstack TS this past year than any other language) -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Claude We’re extending Claude Fable 5 access on all paid plans, as well as our increased Claude Code rate limits, through July 19.Despite this, today on July 17, 2026 at 11:25 AM PST> `Usage credits are required for this model.`
Technologies: 15 years full stack - react and ruby, etc.(spent more time in fullstack TS this past year than any other language) -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Willing to relocate: Maybe, but planning on staying in Bay Area
Technologies: 15 years full stack - react and ruby, etc.(spent more time in fullstack TS this past year than any other language) -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
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Esc to cancelRemote: Yes
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby, etc.(spent more time in fullstack TS this past year than any other language) -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
More: https://www.linkedin.com/posts/markavaldez_ai-activity-73922...
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Technologies: 15 years full stack - react and ruby, etc. -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com
Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
More: https://www.linkedin.com/posts/markavaldez_ai-activity-73922...
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby, etc. -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com
Building startups (based in San Francisco) @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
More: https://www.linkedin.com/posts/markavaldez_ai-activity-73922...
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
check out sharedfounders.com to take you AI generated prototype to the next level!
Also if you are a solo-founder and want to join others to collaborate on AI best practices, send me a email at [email protected]
See: https://www.linkedin.com/posts/markavaldez_ai-activity-73922...
500 level errors started at 4:10PM PST.and ended at 4:16PM PST.
Remote: Yes
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby, etc. -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent 4 months in 2025 building an POC AI marketplace, https://goodbruce.com
Building startups @ http://sharedfounders.com/ (helping founders take their ideas built on platforms like v0.dev, lovable.com, replit.com, bolt.new, base44.com from AI generated scaffolding to Production)
More: https://www.linkedin.com/posts/markavaldez_ai-activity-73922...
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Remote: Yes
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent the last 4 months building an POC AI marketplace, https://goodbruce.com Open to contract roles @ http://sharedfounders.com/ Open to FTE Founding Engineering roles
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
Remote: Yes
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare in March 1st 2025. Spent the last 4 months building an POC AI marketplace, https://goodbruce.com Open to contract roles @ http://sharedfounders.com/ Open to FTE Founding Engineering roles
Résumé/CV: https://valdezm.com https://www.linkedin.com/in/markavaldez/
Email: [email protected]
THIS SUCKS!
I personally would never use any sort of cheating software, cheating goes against my personal ethics. But as a Engineer with 15 years of experience(valdezm.com) being gated by AI and "technical screens" and whatever magic / dark secrets is going on in ATS(applicant tracking systems).. I do wonder about what companies are thinking, what they are going to do with the weaponization of reductionist ideologies that is this AI approach to interviews. Perhaps we need nee some sort of reciprocity of "Tethics"- I will not cheat, if you do not reduce me to knapsack/dining philosopher problem I learned 20 years ago. If you do not rank me through an ATS, if you provide me with qualitative, real hard-earned time commitment responses, founded in logical reason-based attempts to accept/deny my efforts and the opportunity we are mutually perusing(which I am equally submitting to you).
Yeah, I am a dreamer.
Remote: Sure
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019. Building AI in 2025 - competed and won Hacking Agents Hackathon put on by Datastax (Langflow) at Cloudflare two days ago, March 1st 2025.
Résumé/CV: https://valdezm.com Email: [email protected] Remote: Sure
Willing to relocate: No, staying in Bay Area
Technologies: 15 years full stack - react and ruby -- but very broad bleeding edge. Build 0-1 products with Founders for 10+ years. Built geosite.io first year beta/foundation before entering Y-Combinator in 2019.
Résumé/CV: https://valdezm.com
Email: [email protected]Remote: Yes
Willing to relocate: To the Bay Area
Résumé/CV: https://drive.google.com/file/d/1bnf-W4y1D004ac-t0N1_QYlr0PX...
Website: https://valdezm.com (updating July 2023)
Technologies: Rails, JS, TS, React, 10 years of experience in startup, Typescript, Ruby, Java, Cassandra, Postgres, Mongo, Go, Django, Laravel, Node, a lot more over the past 13+ years of professional experience as a Fullstack Developer
Email: interview@valdezm<dot>com
Remote: Yes
Willing to relocate: To the Bay Area
Technologies: Ruby on Rails, JS, TS, React, so much more 10-15 years of experience in startups
Résumé/CV: https://drive.google.com/file/d/1c5QSVgSla9RM8riHoi6WSIUUZFm...
Email: [email protected]
Location: Remote, US, currently in Seattle, WA area. Moving back to San Francisco.
Remote: Yes
Willing to relocate: Yes
Technologies: React, Typescript, Ruby, Java, Cassandra, Postgres, Mongo, Go, Rails, Django, Laravel, Node, a very lot more over the past 10+ years of professional experience as a Fullstack Developer
Résumé/CV: https://valdezm.com
Email: valdez{dot}mark[dot]interviewing@gmail<dot>comI'd add, DHH speaks greatly at a philosophical level to a revolution that he envisions has to take place if we are to beat conquistadors(those who by any means necessary seek their bottom-line alone) and the general miasma of change that is our day as Developers and (increasingly complex)baselines that cause barriers to/of entry because now we need to understand the new XYZ-technology of the month... Underlying this, I think he challenges what it means to have a prestigious company on your resume in light of the effective outcome of a coding academy. He mentions Taleb and Software iatrogenics at a point to discuss how Software specializations creates distance(again found at these very large prestigious institutions) from the product and in so doing creates a vacuum of lack of responsibility and ownership, which creates opportunity for the end-product to be abused. This is some deep stuff that likely will require a second go around.. I build products from the ground up, a true full-stack Engineer for nearly a decade and I live in this tension of comfort in specialization(which tempting but the road I have never traveled, mostly innately) vs. the pursuit of volatility and measured effective utility abstraction.. You can even hire me at this very moment and "arm this rebel", lest I surrender to those dogmatic Conquistadors.. but DHH is having a hiring-freeze at the moment because their product is too good? (I just started to read, may not be accurate, will edit if not)