Jan

Senior Backend Engineer | Amazon SP/ADS-API Integrations | 18+ Years PHP/MySQL Sys

Verified

mark as hired

Overview

Looking for part-time work (5 hours/day)

at $19.66/hour ($2,400.00/month)

BS Computer Science

Last Active

August 20th, 2026 (10 days ago)

Member Since

February 13th, 2011

Profile Description

I am a Senior Software Developer with 18+ years of experience designing, developing, and maintaining web-based information systems, business applications, API integrations, and automation solutions.

My core expertise includes PHP, Yii, Laravel, Python, Django, MySQL, REST APIs, database engineering, and full-cycle software development (SDLC). I enjoy solving complex problems where business processes, databases, APIs, and multiple platforms need to work together reliably.

Throughout my career, I have built software ranging from comprehensive university Management Information Systems to enterprise applications, e-commerce integrations, automation tools, reporting systems, and data-processing platforms.

Some highlights of my experience include:

• Designing and developing a suite of university Management Information Systems—including Enrollment, Student Information, Facilities Reservation, OPAC, Payroll, and Gradebook—using custom PHP applications and MySQL.

• Contributing to international software projects for enterprise clients, including process and request management systems supporting Fujitsu Australia's data center operations.

• Developing web applications for lead generation and marketing, intellectual property management, photo galleries, job boards, and other business workflows using PHP frameworks such as Yii and CodeIgniter.

• Building automation tools, data scrapers, and integrations involving platforms such as Amazon, Shopify, Etsy, and Instagram using PHP, Python, and Django.

• Working with business intelligence, workflow automation, and business platforms including Odoo, Metabase, ClickUp, Airtable, Baserow, and Make (formerly Integromat).

My experience covers the full software development lifecycle, including software architecture, database design and optimization, backend development, API integration, automation, cloud-based deployments, system maintenance, and process improvement.

I am particularly interested in opportunities involving backend and full-stack development, enterprise information systems, API integrations, e-commerce technology, data-driven applications, and business process automation.

I enjoy building practical software that connects systems, reduces manual work, improves access to information, and helps businesses operate more efficiently.

Core technologies and areas: PHP · Laravel · Python · Django · MySQL · REST APIs · JavaScript · Linux · Docker · Amazon APIs · Shopify · E-commerce · Automation · Business Intelligence · Enterprise Systems

Top Skills

E-Commerce » Amazon » Feed Analysis

Experience: 2 - 5 years

E-Commerce » Amazon » Catalog Management

Experience: 2 - 5 years

E-Commerce » Amazon » Listing Management

Experience: 2 - 5 years

Other Skills

Advertising » Amazon Ads

Experience: 2 - 5 years

Web Programming » PHP » Yii

Experience: 10+ years

Web Programming » PHP » Laravel

Experience: 2 - 5 years

Software » Python

Experience: 2 - 5 years

Web Programming » CMS » Shopify

Experience: 2 - 5 years

Web Programming » Javascript » React JS

Experience: 1 - 2 years

Office and Administration » Data analysis » Data scraping

Experience: 2 - 5 years

Software » Make.com

Experience: 1 - 2 years

Software » API Integration

Experience: 2 - 5 years

Basic Information

Age: 41

Gender: Male

Website: Sign Up with Pro Account to View

Address: Sibulan, Negros Oriental

Tests Taken: IQ
Score: 125: DISC
Dominance: 9
Influence: 7
Steadiness: 38
Compliance: 45: English
C2(Advanced/Mastery)

Government ID: Sign Up with Pro Account to View

“There are just so many skills that the Filipino market has that they bring to the table. It's been amazing.”

Samori Coles

SEE MORE REAL RESULTS

“I started getting some peace of mind and some traction!”

- Aaron Hall

see more real results

BENCHMARKS

Loading Time: Base Classes	0.0007
Controller Execution Time ( Jobseekers / Info )	0.2578
Total Execution Time	0.2592

GET DATA

No GET data exists

MEMORY USAGE

1,656,440 bytes

POST DATA

No POST data exists

URI STRING

jobseekers/info/44818

CLASS/METHOD

jobseekers/info

DATABASE: onlinejobs (Jobseekers:$db) QUERIES: 29 (0.2456 seconds) (Show)

0.0003	`SELECT * FROM exrates WHERE rate_name = 'USD-PHP'`
0.0053	SELECT * FROM `jobseekers` WHERE `jobseeker_id` = '44818' LIMIT 1
0.0895	SELECT * FROM `jobseeker_meta` WHERE `jobseeker_id` = '44818'
0.0015	SELECT `j`., `jj`. FROM `jobseekers` `j` INNER JOIN `jobseekers_jobdata` `jj` ON `j`.`jobseeker_id` = `jj`.`jobseeker_id` WHERE `j`.`jobseeker_id` = '44818'
0.0002	SELECT * FROM `jobseekers_trust` WHERE `jobseeker_id` IS NULL
0.0004	SELECT * FROM `jobseekers` WHERE `jobseeker_id` = '44818' AND `is_private` = 1
0.0240	`SELECT * FROM employment WHERE jobseeker_id = '44818' AND hired > -1`
0.0440	`SELECT employers.contact_name, ec.employer_id, ec.jobseekers_id, ec.is_jobseeker_reply, ec.employer_date, ec.employer_comment, ec.lastmodified FROM employers LEFT JOIN employer_comment ec on employers.employer_id = ec.employer_id WHERE ec.jobseekers_id = '44818' AND employers.deactivate = 0 ORDER BY employer_comment_id DESC`
0.0003	`SELECT * FROM skill_categories ORDER BY cat_order ASC`
0.0005	`SELECT * FROM skill_subcategories ORDER BY subcategory ASC`
0.0003	`SELECT * FROM jobseekers_jobdata WHERE jobseeker_id = 44818 LIMIT 1`
0.0020	`SELECT * FROM jobseekers_skills WHERE jobseeker_id = 44818 LIMIT 1`
0.0009	`SELECT * FROM jobseekers j, jobseekers_jobdata jj,jobseekers_skills js WHERE j.jobseeker_id = '44818' AND j.jobseeker_id = jj.jobseeker_id AND jj.jobseeker_id = js.jobseeker_id`
0.0003	`SELECT *, DATEDIFF('2026-08-30',rebill_date) duration_rebill FROM employers WHERE employer_id = ''`
0.0002	`SELECT * FROM employer_comment WHERE employer_id = ''`
0.0493	SELECT `facebook`, `manual_fb_score` FROM `jobseekers_trust` WHERE `jobseeker_id` = '44818'
0.0034	SELECT * FROM `skills_categories` WHERE `is_approved` = 1 ORDER BY `name`
0.0196	SELECT `jsct`., `jsct`.`id` as `jsct_id`, `sct`. FROM `jobseekers_skills_categories` `jsct` LEFT JOIN `skills_categories` `sct` ON `sct`.`id` = `jsct`.`skill_category_id` WHERE `sct`.`is_approved` = 1 AND `jsct`.`jobseeker_id` = '44818' ORDER BY `jsct`.`rate` DESC
0.0004	SELECT * FROM `jobseekers_trust` WHERE `jobseeker_id` = '44818'
0.0003	`SELECT user_level, rebill_date, jobseekers_seen, jobseekers_seen_override from employers WHERE employer_id = ''`
0.0003	SELECT * FROM `testimonial_videos` WHERE `placement` = 1 OR `placement` = 0 ORDER BY RAND()
0.0006	SELECT * FROM `testimonial_videos` WHERE `placement` = 2 OR `placement` = 0 ORDER BY RAND()
0.0003	`select * from teasers`
0.0003	SELECT * FROM `employers` WHERE `employer_id` IS NULL LIMIT 1
0.0004	`SELECT user_level, rebill_date, jobseekers_seen, jobseekers_seen_override from employers WHERE employer_id = ''`
0.0002	SELECT * FROM `employers` WHERE `employer_id` IS NULL LIMIT 1
0.0002	`SELECT user_level, rebill_date, jobseekers_seen, jobseekers_seen_override from employers WHERE employer_id = ''`
0.0002	`SELECT user_level, rebill_date, jobseekers_seen, jobseekers_seen_override from employers WHERE employer_id = ''`
0.0002	`SELECT * FROM notes WHERE employer_id = '0'`

HTTP HEADERS (Show)

SESSION DATA (Show)

__ci_last_regenerate	1788086004
last_page	https://v1.stage.onlinejobs.ph/jobseekers/info/44818
csrf-token	b6e3df75626499151b1288d661a3fb4d

CONFIG VARIABLES (Show)

base_url	https://v1.stage.onlinejobs.ph
log_threshold	2
enable_profiler
index_page
uri_protocol	PATH_INFO
url_suffix
language	english
charset	UTF-8
enable_hooks	1
subclass_prefix	MY_
composer_autoload	vendor/autoload.php
permitted_uri_chars	a-z 0-9~%.:_\=\-\+\@?\&
enable_query_strings
controller_trigger	c
function_trigger	m
directory_trigger	d
allow_get_array	1
log_path
log_file_extension
log_file_permissions	420
log_date_format	Y-m-d H:i:s
error_views_path
cache_path
cache_query_string
encryption_key	OdBUArjiWg9I7u7bvAwQ7Fu35VB1kzga
sess_driver	files
sess_cookie_name	ci_session
sess_expiration	2678400
sess_save_path
sess_match_ip
sess_time_to_update	300
sess_regenerate_destroy
cookie_prefix
cookie_domain
cookie_path	/
cookie_secure
cookie_httponly
standardize_newlines
global_xss_filtering	1
csrf_protection
csrf_token_name	csrf_test_name
csrf_cookie_name	csrf_cookie_name
csrf_expire	7200
csrf_regenerate	1
csrf_exclude_uris	Array ( )
compress_output
time_reference	local
rewrite_short_tags
proxy_ips
ojadmin	JpjZkQN5A8l@^L
salt	+UFjSAT49tPZLtmU2CIG2FYN7pRhgsWyLHgSyQa6k3I=
queue_enabled
twilio	Array ( [sid] => AC00c0594045c6eef9407e8fff01f3d467 [token] => f0bfc0b73444a077894a43f5f75e6d41 [length] => 6 [from] => +639221200200 [code_expiry_seconds] => 14400 )
maintenance	Array ( [admin] => Array ( [verification] => ) [announcement_bar] => Array ( [show_slow_issue_message] => ) )
trustpilot	Array ( [to_email] => onlinejobs.ph+3d844ebf71@invite.trustpilot.com )
services	Array ( [google_tag_manager] => Array ( [id] => GTM-T5CQMS6P ) [chatgpt] => Array ( [secret] => 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 ) [claude] => Array ( [secret] => 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 ) )
v2_url	https://v2.onlinejobs.ph
replacemyself_secret_key	Kk1WpgTMkc4wBQOqC5rqCssdLhACKrsJeTtO1ywUkT4=
app	Array ( [app] => Array ( [command] => Array ( [map] => Array ( [OnlineJobs\Mailer\Command\SendEmailCommand] => OnlineJobs\Mailer\Handler\SendEmailHandler [OnlineJobs\Mail\Command\SendEmailCommand] => OnlineJobs\Mail\Handler\SendEmailHandler [OnlineJobs\Mail\Command\QueueEmailPendingCommand] => OnlineJobs\Mail\Handler\QueueEmailPendingHandler [OnlineJobs\Mail\Command\QueueJobEmailPendingCommand] => OnlineJobs\Mail\Handler\QueueJobEmailPendingHandler [OnlineJobs\Mail\Command\QueueUnapprovedEmailCommand] => OnlineJobs\Mail\Handler\QueueUnapprovedEmailHandler [OnlineJobs\Mail\Command\ProcessEmailQueueCommand] => OnlineJobs\Mail\Handler\ProcessEmailQueueHandler [OnlineJobs\Mail\Command\PutJobseekerEmailOnHoldCommand] => OnlineJobs\Mail\Handler\PutJobseekerEmailOnHoldHandler [OnlineJobs\Purchase\Command\RealEstateVaCourseCommand] => OnlineJobs\Purchase\Handler\RealEstateVaCourseHandler [OnlineJobs\Test\Command\HelloCommand] => OnlineJobs\Test\Handler\HelloHandler ) [middleware] => Array ( ) ) [providers] => Array ( [0] => OnlineJobs\Bus\BusServiceProvider [1] => OnlineJobs\Database\DbServiceProvider [2] => OnlineJobs\Mailer\MailerServiceProvider [3] => OnlineJobs\Support\SupportServiceProvider [4] => OnlineJobs\Employer\ServiceProvider [5] => OnlineJobs\Jobseeker\ServiceProvider [6] => OnlineJobs\Mail\ServiceProvider [7] => OnlineJobs\Postal\ServiceProvider [8] => OnlineJobs\Queue\ServiceProvider [9] => OnlineJobs\Courier\ServiceProvider [10] => OnlineJobs\Job\ServiceProvider [11] => OnlineJobs\Purchase\ServiceProvider ) ) )
meta	Array ( [facebook] => Array ( [input] => 1 [connect] => 2 [timezone] => 3 [url] => 30 [id] => 31 [photo] => 32 [name] => 33 [email] => 34 [review] => 35 ) [trust] => Array ( [government_id] => 4 [utility_bill] => 5 [selfie_photo] => 6 [profile_picture] => 7 [phone_number] => 8 [facebook] => 9 ) [verify] => Array ( [profile_picture] => 10 [government_id] => 11 [selfie_photo] => 12 [utility_bill] => 13 [address] => 14 [name] => 15 [reviewed] => 16 [government_group] => 28 [address_group] => 29 [mobile] => 38 ) [address] => Array ( [complete] => 17 [room_unit_no] => 20 [house_no] => 21 [street] => 22 [subdivision] => 23 [barangay] => 24 [city] => 25 [province] => 26 [postcode] => 27 ) [reviewed] => Array ( [similar_names] => 1 ) [name] => 18 [phone] => 19 [sms_verification_code] => 36 [resend_verification_code] => 37 [address_read] => 39 [first_name] => 100 [middle_name] => 101 [last_name] => 102 [edit] => Array ( [government_id_group] => 40 [address_group] => 41 [mobile_group] => 42 ) [salary_re_entry] => 103 [id_proof_recalibrate] => 104 [email] => 44 [mobile_verification_type] => 45 )
honeypot	Array ( [name_field] => my_name [enabled] => 1 )

HTTP_ACCEPT	/
HTTP_USER_AGENT	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
HTTP_CONNECTION	Upgrade
SERVER_PORT	80
SERVER_NAME	v1.stage.onlinejobs.ph
REMOTE_ADDR	127.0.0.1
SERVER_SOFTWARE	Apache/2.4.58 (Ubuntu)
HTTP_ACCEPT_LANGUAGE
SCRIPT_NAME	/index.php
REQUEST_METHOD	GET
HTTP_HOST
REMOTE_HOST
CONTENT_TYPE
SERVER_PROTOCOL	HTTP/1.1
QUERY_STRING
HTTP_ACCEPT_ENCODING	gzip, br, zstd, deflate
HTTP_X_FORWARDED_FOR	216.73.216.52
HTTP_DNT