# Looking for a freelancer for scientific computing, nonlinear optimization, and data reconciliation

**URL:** <https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045>\
**Category:** Jobs\
**Created:** [September 4, 2024, 4:20pm UTC](https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045 "2024-09-04T16:20:45Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![udiekman](https://avatars.discourse-cdn.com/v4/letter/u/898d66/32.png) [@udiekman](https://discourse.julialang.org/u/udiekman)\
**Post date:** [September 4, 2024, 4:20pm UTC](https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045/1 "2024-09-04T16:20:45Z")

</div>

We are seeking a Julia developer to create a prototype for  
analyzing mass flows, energy flows, substance concentrations, and  
performing data reconciliation. The mathematical tools are solving  
(bilinear) least-squares problems with nonlinear constraints and related  
numerical linear algebra techniques.

The system consists of processes which are linked with flows. Flows are  
mainly characterized by mass flows and energy flows. Processes have  
transfer coefficients that represent the relationships between the  
various connected flows. Considering practical applications a system may  
have hundreds of flows with associated energy and mass balances (that  
can be solved on a single workstation).

We will provide background material describing the relevant algorithms.  
The goal of the project is to implement a prototype of the basic  
algorithm and extend it step-by-step to more complex applications and  
improved efficiency including usage of sparse linear algebra techniques.

---

<div class="post-metadata">

**Author:** ![ufechner7](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ufechner7/32/51363_2.png) [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Post date:** [September 4, 2024, 6:29pm UTC](https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045/2 "2024-09-04T18:29:07Z")

</div>

Sent a private message.

---

<div class="post-metadata">

**Author:** ![Mohamad\_Badiez](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mohamad_badiez/32/213635_2.png) [@Mohamad\_Badiez](https://discourse.julialang.org/u/Mohamad_Badiez)\
**Post date:** [November 22, 2024, 11:58pm UTC](https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045/3 "2024-11-22T23:58:53Z")

</div>

Does your opportunity is still available for working especially remotely? Thank you

---

<div class="post-metadata">

**Author:** ![udiekman](https://avatars.discourse-cdn.com/v4/letter/u/898d66/32.png) [@udiekman](https://discourse.julialang.org/u/udiekman)\
**Post date:** [November 23, 2024, 11:30am UTC](https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045/4 "2024-11-23T11:30:56Z")

</div>

Hello Mohamad,

the initial phase of the project is nearly at its end - but we are thinking of a second step next year.

Best regards  
Uwe

---

<div class="post-metadata">

**Author:** ![Matthew1](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/matthew1/32/215134_2.png) [@Matthew1](https://discourse.julialang.org/u/Matthew1)\
**Post date:** [February 28, 2025, 6:15pm UTC](https://discourse.julialang.org/t/looking-for-a-freelancer-for-scientific-computing-nonlinear-optimization-and-data-reconciliation/119045/5 "2025-02-28T18:15:28Z")

</div>

Is this still open?