HNHacker News
TopNewBestAskShowJobs

davidajackson

349 karma · joined February 12, 2018

AI researcher and builder. I've built profitable fintech companies. Talk to me about anything startups, technology, or music.

Contact for consulting/hiring:

https://www.linkedin.com/in/deejax

david <at> callstop · com

submissionscomments
davidajackson··on Ask HN: Who is hiring? (September 2022)
Flexible Finance | REMOTE (US) Flex (https://getflex.com/) is an early-stage, remote-first FinTech startup that is bringing flexible payments to recurring bills. Flex currently offers flexible payments on rent for certain tenants in the U.S. The company is scaling quickly, and there are multiple engineering positions open currently. If you want to be part of a company growing rapidly with high potential upside (strong team, huge market size), consider joining Flex. You can apply here through my engineering referral link: https://grnh.se/474304b85us
davidajackson··on Ask HN: Freelancer? Seeking freelancer? (September 2022)
SEEKING WORK - Location: PST - Remote Consulting: Yes

I'm a seasoned startup engineer and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity. 5+ years of professional experience, especially in fintech.

  Willing to relocate: No

  Technologies: 4.5+ yrs professional experience; JS, React, React Native, Python, Node, AWS, Java, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

  Résumé/CV: https://www.linkedin.com/in/deejax/

  Email: david <@> callstop <d 0 t > com
davidajackson··on Ask HN: Freelancer? Seeking freelancer? (August 2022)
SEEKING WORK - Location: PST - Remote Consulting: Yes

I'm a seasoned startup engineer and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity.

  Willing to relocate: No

  Technologies: 4.5+ yrs professional experience; JS, React, React Native, Python, Node, AWS, Java, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

  Résumé/CV: https://www.linkedin.com/in/deejax/

  Email: david <@> callstop <d 0 t > com
davidajackson··on Ask HN: What is the definition of a “founding engineer”?
My guess would be it's a combination of:

1. Many good eng's might not have the skills to fundraise/run the business side, and with them more often having friends that are also eng's maybe there's less likely to be a match to have a business counterpart. That coupled with missing domain knowledge means that some eng's jump to take those jobs. However I have heard from a successful founder that the early engineers that are good are very hard to attract.

2. Loss aversion: https://en.wikipedia.org/wiki/Loss_aversion; people more often seek to avoid downside rather than pursue upside.

davidajackson··on Ask HN: What is the definition of a “founding engineer”?
I was first eng at 2 YC companies so can share my experience:

Benefits:

- Learn on the job

- Learn to start companies/test ideas

Drawbacks:

- Company pivots or moves locations? Can lose all equity if < year 1 even if you stayed up late often building first MVP

- All of your points

The payoff could be the startup, but more likely it's the experience and skills for down the line. Are you inexperienced? Then it's a great option if you want to start a startup in the future.

For me I ended up getting a full time, much much better job by essentially going through the agile sprint wringer at multiple startups. It would be a much harder sell now to me, not that I'm not open to it, I just have more of a radar for better startups now.

Caveat if you don't have the skills required to start the company, then there's no opportunity cost and the opportunity cost exists somewhere else if you have other skills. I did notice how several founders were very good at fundraising, instead of writing code -- and it was equally important.

davidajackson··on Ask HN: Freelancer? Seeking freelancer? (July 2022)
SEEKING WORK - Location: PST - Remote Consulting: Yes

I'm a seasoned startup engineer and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity.

  Willing to relocate: No

  Technologies: 4.5+ yrs professional experience; JS, React, React Native, Python, Node, AWS, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

  Résumé/CV: https://www.linkedin.com/in/deejax/

  Email: david <@> callstop <d 0 t > com
davidajackson··on Show HN: I made a visual NFT collection
Not OP but https://forum.algorand.org/t/what-was-the-rationale-around-n... has always been my concern.
davidajackson··on Show HN: I made a visual NFT collection
Try polygon maybe.
davidajackson··on Show HN: I made a visual NFT collection
Got it. Looks like a metaverse building :)
davidajackson··on Show HN: I made a visual NFT collection
Nice. Is this ERC1155? Are cubes non-fungible or fungible? Why be non fungible, the attributes? And also wondering what's your email? I'm building some NFT devops tools.

Also, what's the gas cost to change/set an attribute? (seems to me primary probably blocker if it's high)

davidajackson··on Show HN: My Side Project Rocks – Share and discover side projects
where is your localtime posted at coming from? mine was off. just use frontend localized?
davidajackson··on Ask HN: How to talk with logical flow and coherence at interviews?
Interviewing is a learned skill. I went through a period where I interviewed with every recruiter that reached out, to improve interviewing skills. You should do that. You will get the practice of nailing conversations through that.
davidajackson··on Ask HN: Which mathematics books taught you the most in your career?
Do you feel challenged as a mathematician in industry? Are there jobs that are challenging? As interesting as just learning a new topic? Just curious.
davidajackson··on Ask HN: Freelancer? Seeking freelancer? (June 2022)
SEEKING WORK - Location: PST - Remote Consulting: Yes

I'm a seasoned startup engineer and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity.

  Willing to relocate: No

  Technologies: 4.5+ yrs professional experience; JS, React, React Native, Python, Node, AWS, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

  Résumé/CV: https://www.linkedin.com/in/deejax/

  Email: david <@> callstop <d 0 t > com
davidajackson··on Tech layoffs could push workers back to the office
It's baffling that companies spend so much money on offices for tech workers. It makes no sense to me. It wastes money and it's pointless with tools like slack, miro, loom etc.
davidajackson··on Ask HN: Freelancer? Seeking freelancer? (May 2022)
SEEKING WORK - Location: PST - Remote: Yes

I'm a software engineer with 5 years experience and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity. If you're looking to launch a new product or service, I can help.

Willing to relocate: No

Technologies: 5 yrs professional experience; JS, React, React Native, Python, Node, AWS, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

Résumé/CV: https://www.linkedin.com/in/deejax/

Email: david <@> callstop <d 0 t > com

davidajackson··on Ask HN: Can one of the Google engineers add support for IPFS on Chrome?
I've actually heard really good things about Brave as a legitimate browser, haven't heard such negative reactions.
davidajackson··on Ask HN: Can one of the Google engineers add support for IPFS on Chrome?
Do you feel that with IPFS using content hashes (CID v1, v2, etc) caching would be an easier problem to solve than fetching content that can change? I had thought IPFS would make this problem easier. And thanks for the detailed response, it has got me thinking about a lot.
davidajackson··on Ask HN: Can one of the Google engineers add support for IPFS on Chrome?
Maybe, but it wouldn't be as good for content creators who want their content to be sharable. Curious if you find an answer though. Right know you can reference IPFS with a 3rd party provider like ipfs.io/... but it's not ideal for long term permanence if that metadata is on a chain.
davidajackson··on Ask HN: Can one of the Google engineers add support for IPFS on Chrome?
Got it, yeah I wonder if Google will lose customers to Brave :) It just seems like low hanging fruit. But I understand about other features. And writing from a genuine point of curiosity, not trying to sound entitled.
davidajackson··on Ask HN: What questions to ask before joining a startup?
Ask to see analytics specific to the business. If there's any exaggeration ("We already have product market fit") the graphs will tell you very quickly if that's the case. There is often a lot of embellishment among early founders when trying to hire. And if a company has much less traction, it might be reasonable to ask for more equity so it really affects you.
davidajackson··on Ask HN: How do you deal with remote people working multiple full-time jobs?
Mortgage rates just hit 5%+ here in US. CPI is up hugely in that last year. Some people are probably doing this out of necessity. I don't think you should be caring about this, it will come off like being a control freak to your employees. If they're not performing well, just fire them or focus on their perfomance in the ccontext of their job, but you don't need to address the why or how that you think is causing it. When someone performs poorly due to mental health reasons, do you delve into the reasons they're feeling bad and performing badly, and tell them what to do? No, that's not your job -- if anything you should help them get help. The same thing applies to work performance, focus on improving their performance but don't try to control what they do in the free time. The problem is, for every 1 person you tell to stop and accuse of abusing your generosity, you'll have someone else who isn't abusing it but simply working in their free time to make ends meet--yet you've now accused them. You will build a culture of resentment of people you falsely accuse and that could be damaging.
davidajackson··on Ask HN: Accepting ETH payments on my website
Conceptually? Should work on basically any chain with a VM. The API I mentioned above supports about 10 networks like Ethereum, Polygon, Arbitrum, Optimism... so some with low gas fees.
davidajackson··on Ask HN: Accepting ETH payments on my website
No they don't need metamask. Try the following:

1. Generate payment destination address info: web3.createaccount() on backend, or even have a list of PUB keys on backend that link to ideally cold wallets. The point I'm trying to make is to isolate the destination PK's far away from frontend.

2. Send pub key to frontend and present to user in UI.

3. On backend, listen for incoming ether transfers (if you reuse wallets, consider creating a smart contract to allow a function call that allows you to pass data to identify sender to avoid duplicate payment amount confusion). Have frontend react when payment complete. Consider temp payment addresses 'hot' and move funds to cold ASAP, a common pattern you'll see.

When you get into more complicated interactions, it does become a rabbit hole of complexity.

I did just release an API for launching NFTs that has a concept of funding accounts: https://www.bridge-api.com/ (beta stage). If at some point you are looking for a larger solution and want to chat where you can manage many accounts without all the hassle of gas estimation, gas price, ABIs, etc., shoot me an email (email in profile). I am looking to talk to early stage founders.

davidajackson··on Ask HN: Who is hiring? (April 2022)
Flexible Finance | REMOTE (US) Flex (https://getflex.com/) is an early-stage, remote-first FinTech startup that is bringing flexible payments to recurring bills. Flex currently offers flexible payments on rent for certain tenants in the U.S. The company is scaling quickly and plans to grow to 300+ members by the end of 2022, and there are 10 engineering positions open currently. If you want to be part of a company growing rapidly with high potential upside (strong team, huge market size), consider joining Flex.

If we've crossed paths here on HN or through the YC community, or you're just interested in applying, I can submit a referral for strong resumes (am an SWE at Flex). I might not be able to respond to all emails but will let you know if I submit a referral. Shoot me an email with your resume at david <at> callstop <dot> com (avoiding using my work email to prevent other HN spam).

Or, you can just apply on the careers section of the Flex homepage.

davidajackson··on Ask HN: Who wants to be hired? (April 2022)
FullStack SWE and Contractor - 5 years startup experience

Location: PST

Remote: Yes

Willing to relocate: No

Technologies: 4+ yrs professional experience; JS, React, React Native, Python, Node, AWS, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

Résumé/CV: https://www.linkedin.com/in/deejax/

Email: david <@> callstop <d 0 t > com

davidajackson··on Ask HN: Freelancer? Seeking freelancer? (April 2022)
SEEKING WORK - Location: PST - Remote: Yes

I'm a software engineer with 5 years experience and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity. If you're looking to launch a new product or service, I can help.

Willing to relocate: No

Technologies: 5 yrs professional experience; JS, React, React Native, Python, Node, AWS, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

Résumé/CV: https://www.linkedin.com/in/deejax/

Email: david <@> callstop <d 0 t > com

davidajackson··on Ask HN: How to get clients for a new, small software agency?
Do you specialize? Instead of casting a wide net, I'd suggest becoming an expert in just a few small areas. Then, you can cold outreach to companies/people with those needs. Like an expert on Kubernetes, or React, whatever...
davidajackson··on Ask HN: Freelancer? Seeking freelancer? (March 2022)
SEEKING WORK - Location: PST - Remote: Yes

I'm a senior engineer and have helped 3 YC companies launch & have worked on and at multiple startups. I work for and consult for startups launching MVPs and new services, particularly with React and solidity.

  Willing to relocate: No

  Technologies: 4.5+ yrs professional experience; JS, React, React Native, Python, Node, AWS, Heroku, Dynamo, Mongo, MySQL, Ethereum (Solidity), REST, Docker

  Résumé/CV: https://www.linkedin.com/in/deejax/

  Email: david <@> callstop <d 0 t > com
davidajackson··on Ask HN: Who is hiring? (March 2022)
Flexible Finance | REMOTE (US)

Flex (https://getflex.com/) is an early-stage, remote-first FinTech startup that is bringing flexible payments to recurring bills. Flex currently offers flexible payments on rent for certain tenants in the U.S. The company is scaling quickly and plans to grow to 300+ members by the end of 2022, and there are 10 engineering positions open currently. If you want to be part of a company growing rapidly with high potential upside (strong team, huge market size), consider joining Flex.

If we've crossed paths here on HN or through the YC community, or you're just interested in applying, I can submit a referral for strong resumes (am a senior SWE at Flex). I might not be able to respond to all emails but will let you know if I submit a referral. Shoot me an email with your resume at david <at> callstop <dot> com (avoiding using my work email to prevent other HN spam).

Or, you can just apply on the careers section of the Flex homepage.

← PreviousPage 2 of 11Next →