clarkema

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Fractional CTO / tech lead

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

  * Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)
    
  * EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

  * Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

  * University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

  * High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

  * Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

  * Feasibility study investigating the possibility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Fractional CTO / tech lead / senior backend dev

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

- Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)

- EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

- Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

- University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

- High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

- Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

- Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Fractional CTO / tech lead

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

- Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)

- EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

- Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

- University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

- High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

- Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

- Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Fractional CTO / tech lead

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

  * Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)
    
  * EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

  * Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

  * University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

  * High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

  * Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

  * Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Senior backend dev / tech lead / fractional CTO

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

  * Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)
    
  * EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

  * Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

  * University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

  * High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

  * Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

  * Feasibility study investigating the possibility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Senior backend dev / tech lead / fractional CTO

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

  * Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)
    
  * EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

  * Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

  * University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

  * High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

  * Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

  * Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Senior backend dev / tech lead / fractional CTO

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

  - Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)
    
  - EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

  - Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

  - University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

  - High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

  - Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

  - Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Senior backend dev / tech lead / fractional CTO

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

* Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)

* EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

* Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

* University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

* High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

* Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

* Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

SEEKING WORK - Remote, travel possible depending on location and duration.

Location: North-east UK

What I do: Senior backend dev / tech lead / fractional CTO

Are you being held back by a constraining architecture, slow backend, or a team lacking the depth of experience you need for the next stage of your growth?

Most recently CTO of a regtech startup, I've spent the past 20+ years in a wide variety of tech roles building both products and teams, giving me the perspective to get your project moving without being bound to a particular language or stack.

Previous work:

  * Deterministic AI for medical device regulations and other complex legal systems, including novel language and runtime for regulatory computing (Elixir, Raku, Rust)
    
  * EDI message passing / reconciliation for US dental health insurance market, including X12 parser (Clojure, Common Lisp, Perl, XQuery)

  * Custom domain specific language (DSL) to encode business rules for computer vision system (Common Lisp)

  * University library data migration project, with a focus on completeness and validation. (Clojure, Elixir, Ruby)

  * High-reliability, long-term timelapse platform for inaccessible locations. (FreeBSD, Arduino, Python, Shell)

  * Migration of existing Node.js+Firebase service to Golang+PostgreSQL on AWS

  * Feasibility study investigating the possiblility of writing custom code to interface with a biometric timeclock (Common Lisp)

Got something you think is a good fit? Drop me a line at mike -at- lambdafunctions -dot- com

In our case one of these NIF stores is created per user for a specific task; ironically, with the amount of polish that Rustler puts around NIFs I suspect it would have been more work and more risk to go down the port route and manage everything manually.

No, it doesn't -- looking at the website that's an explicit trade-off of pure performance vs 'Elixir-ish-ness'. It would certainly break a lot of expectations to have data mutating like that without it being hidden away somewhere, so I can understand why they went that way.

In my case the data I'm dealing with is more of a store than a single data item, so I'm leaning on the example of things like ETS. Also it's within a single application rather than being a large generally-available library, so the trade-offs are different. It would be interesting to know if they did tests though.

Explorer does actually use Rust (and polars) for a lot of its work -- its one on the libraries I looked at while figuring out my memory management issues.

That's an interesting point that I should perhaps have covered in the original article.

The real code that this is based on is in fact hidden behind a GenServer for this exact reason -- to maintain the expectations of other Elixir code that has to interact with it. The advantage of the escape hatch, as another commenter mentions, is allowing efficient sparse mutations of a large chunk of data, without having to pay a copy penalty every time. I definitely wouldn't recommend sharing the db handle widely.

I have a 'study' setup using a Boox Mira (portable 13" eink screen) for exactly this kind of use; not polyphasic in my particular case but late evening use. Yes, the screen is expensive, but _totally_ worth it.