Freelance Android and iOS Developer

biometrics

Honorary Master
Joined
Aug 7, 2003
Messages
71,861
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I am a Freelance Android and iOS Developer

  • Specialising in mobile apps with or without a website.
  • A professional developer with 28 years’ experience. I have developed for various disciplines including mobile applications, Windows desktop applications, Linux web services and low level firmware & device drivers.
  • Most of my apps since 2011 have been private in-house apps but you can see some of my public apps in the Play Store (on request).
  • Charge reasonable rates (R450/hour; $45/hour) and if the specification is clear, can quote a fixed project cost.
  • Based in Cape Town and telecommute.

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Last edited:

crackersa

Honorary Master
Joined
May 31, 2011
Messages
29,031
Try the international markets too. They are exploding right now.
 

Gerald_D

Active Member
Joined
Aug 15, 2007
Messages
36
Looking for someone in Cape Town to develop Android app . . . . .or at least tell me what it might involve, cost and time wise. Here is a user requirement that was sent to colleagues:


Scenario:
Cities have from 5 000 to 1 200 000 waste bins issued to residents. Bins remain the property of the municipality, duty of care is with the resident. Bin value approx. $30ea. The emptying of a bin is charged at a typical monthly rate of $10 per bin. If a resident is not registered to a particular bin (might have stolen it) he gets a free emptying service and “saves” $120 per year. RFID Tagging of bins is primarily to register a bin to a resident. Bigger cities have readers on their trucks that scan and geolocate a bin every time it is emptied (typically once per week). Simple tools are needed to build the database against which “ownership” and billing can be proved. (Same simple Android tool is also needed to demonstrate the potential to new clients for tags).

Residents do “personalise” their bins with decals, marks, own labels. They always want their own particular bin returned to them after emptying. Theft of bins is a big problem. Municipal officials have many arguments to be solved in the street. (Need a reader that displays the registered owner in plain language to all parties involved). Simple asset verification by the municipality. On a city street, the StreetName stays consistent for a long time while only the data fields for Owner and StreetNumber change for each tag. At a security complex, there can be up to 70 bins outside the gate . . . . . all with same Owner, StreetNumber and StreetName. (we need easy methods to replicate field inputs from one tag to the next).

Tags are typically retro-fitted to bins on the day that the truck visits (otherwise the bin is behind gates or doors). A team of two people walk the street just after the truck has passed and they try and talk to the residents who fetch the bins and take them back behind the gates/doors. Typically 50% of the OwnerNames would be informally identified (there is some deception as well, trying to avoid the bill). However, StreetName, Number and Geolocation is accurate. Problem areas require multiple visits, armed with data from the city’s records of owners registered to addresses.

Data file imported to Android (and shared out afterwards):
.xls is most useful. Following fields (columns):
RFID (10 digit hexadecimal)Owner (text) A reader is plugged into the USB OTG port of the Android
StreetNumber (text)
StreetName (text)
Comment (text. Eg. Broken lid, burnt, etc.)
Date & Time of scan
Latitude (number, 5 decimal places)
Longitude (number, 5 decimal places)
With date & time, the history is recorded by lengthening the imported file (adding rows). The exported file has the same rows as the imported file, plus a few more with different date & time stamps. Yes, there will be duplicates, but the guys in the back office will sort that out and build the master file.

When the file is too big for Android, the back office guys must break up their master file into suburbs for example.

App Process:
Call App then home screen displays logo, plus show name of .xls already loaded. If no .xls already loaded, provides facility to import .xls. Save/scan button at bottom of screen, as well as Share/Export button. At this point the user can import or share/export the .xls file. Or the user can proceed to save/scan screen.

If user has proceeded to second screen (the save/scan screen), the cursor waits in the RFID field for tag to be scanned. Scan tag. (The USB OTG reader acts as external keyboard and inserts the text found on the tag)

If tag number is not found in imported .xls, user is presented with blank fields for him to fill in, and a save/scan button at the bottom. Blank fields are acceptable (Lat, Long, Date, Time auto filled, not on screen) Empty field boxes each have a R button on far right. This replicates the most recent entry for the previous tag.

If tag number is found in imported .xls, then field boxes are filled with data extracted from file. User can edit data before saving with new date/time. Also, if new geolocation is more than 50 meters from previous geolocation, a warning is flashed.

Please contact me at gdpost . . . "a.t" . . . . gmail
 

Bryn

Doubleplusgood
Joined
Oct 29, 2010
Messages
16,133
Biometrics isn't a member here anymore. If you're looking for him you can find him at elsbe.com.
 

Bryn

Doubleplusgood
Joined
Oct 29, 2010
Messages
16,133
Necro much?
If you don't want to bump posts, you could have just said nothing. Biometrics is one of the top members to ever grace this forum, and he is no longer here. It's only right that his jobs listing is updated to direct people to where they can find him.
 

Sodan

Expert Member
Joined
Nov 25, 2010
Messages
2,813
If you don't want to bump posts, you could have just said nothing.
I never said anything about "bumping". Necroing, on the other hand...

Anyway, no need to get all passive-aggressive
 

backstreetboy

Honorary Master
Joined
Jun 15, 2011
Messages
25,559
Biometrics isn't a member here anymore. If you're looking for him you can find him at elsbe.com.
Shilling?

If you don't want to bump posts, you could have just said nothing. Biometrics is one of the top members to ever grace this forum, and he is no longer here. It's only right that his jobs listing is updated to direct people to where they can find him.
Lol if he was such a top member he wouldn't be banned :whistling:
 

Bryn

Doubleplusgood
Joined
Oct 29, 2010
Messages
16,133
Shilling?


Lol if he was such a top member he wouldn't be banned :whistling:
No, I've already made my intentions clear.

The best member this forum ever had, DJ, is banned. So your argument doesn't hold too much water. Anyone can get banned here, no matter their contribution to the community, if they bother the establishment too much.
 

Bryn

Doubleplusgood
Joined
Oct 29, 2010
Messages
16,133
I never said anything about "bumping". Necroing, on the other hand...

Anyway, no need to get all passive-aggressive
Replying to my comment bumped the thread. If you have a problem with the thread receiving attention, don't bump it.

The storm in a teacup brigade is getting old.
 

Rocket-Boy

Executive Member
Joined
Jul 31, 2007
Messages
9,782
No, I've already made my intentions clear.

The best member this forum ever had, DJ, is banned. So your argument doesn't hold too much water. Anyone can get banned here, no matter their contribution to the community, if they bother the establishment too much.
Im a little intrigued as to why you think DJ was the best forum member?
Sure he was entertaining at times, he was also a massive knob at other times.

That pretty much sums up most of the MyBB troll squad, so plenty of alternatives available.
 

Bryn

Doubleplusgood
Joined
Oct 29, 2010
Messages
16,133
Im a little intrigued as to why you think DJ was the best forum member?
Sure he was entertaining at times, he was also a massive knob at other times.

That pretty much sums up most of the MyBB troll squad, so plenty of alternatives available.
Probably the most informed member of all the regulars. He contributions were immense when something even vaguely technical or political was being discussed. Even today, the quality of conversation isn't the same without DJ.

For snowflakey types, sure he could be triggering. I had a run in with him once or twice, neither of which bothered me. His pros comically outweighed his cons. MyBB should have used the beef with DJ to re-examine itself.

All this derailing of Biometrics' jobs thread is disgraceful. It takes a special person to have a problem when someone drops a bit of contact info for one of the longest serving members we've ever had. (not you)
 

Sodan

Expert Member
Joined
Nov 25, 2010
Messages
2,813
Replying to my comment bumped the thread. If you have a problem with the thread receiving attention, don't bump it.

The storm in a teacup brigade is getting old.

Correct, replying to your comment bumped the thread. It did not necro it. Are you familiar with the difference between thread bumping and thread necroing?

And for the record, I don't have any beef with DJ or Biometrics. However, this is not about either of them. This is about the frowned-upon practiced of necroing a thread that's more than 2 years old. Don't deflect.
 

Bryn

Doubleplusgood
Joined
Oct 29, 2010
Messages
16,133
Correct, replying to your comment bumped the thread. It did not necro it. Are you familiar with the difference between thread bumping and thread necroing?

And for the record, I don't have any beef with DJ or Biometrics. However, this is not about either of them. This is about the frowned-upon practiced of necroing a thread that's more than 2 years old. Don't deflect.
There are plenty of perfectly fine reasons for necroing threads. Sometimes it's a prediction from the past that is worth discussing or making fun of, or a relevant discussion that may as well be continued rather than started again. And in this case, it was simply updating the jobs thread of one of the top members we've had to ensure that people can get hold of him. Job threads typically have little to no activity in them, and this thread would quickly had dropped down again.

You're the one who made a storm in a teacup for absolutely no reason and stuffed up Biometrics' job posting. Good job.
 

CamiKaze

Honorary Master
Joined
May 19, 2010
Messages
14,455
We might actually need another Android Dev at our company come to think of it.

Is there anything other than Firebase that can do push notifications to your usual list of Android phones and Huawei phones?
 
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