Top 10 Senior software engineer (php) Jobs in Illinois

Staff/Senior Software Engineer (Python/PHP)
Ontrac Solutions —Chicago, IL
- Full-time
- Remote
- Computer Science
- Mentoring
- Senior level
Quick Apply
Senior Software Engineer
MessageControl —Chicago, IL
- Computer science
- Azure
- Computer Science
- Disability insurance
- Health insurance
Quick Apply
Sr Full Stack Software Engineer
Humana —Illinois
- $106,900 - $147,000 a year
- Full-time
- Remote
- Azure
- Computer Science
- Java
- Paid parental leave
- Paid holidays
Senior Web Developer
CueCamp —Chicago, IL
- $100,000 a year
- Part-time
- Remote
- 5 years
- Senior level
- HTML
Senior Web Developer
Plan B, Inc. —Chicago, IL
- $86,790.15 - $104,521.47 a year
- Email
- 5 years
- Office
- In-person
- Health insurance
- Dental insurance
Sr. Software Development Engineer in Test (SDET)
Automox Technologies —Chicago, IL
- Full-time
- Computer Science
- 5 years
- Analysis skills
Sr. RPG Developer
Suncast Corporation —Batavia, IL
- $115,000 - $130,000 a year
- Full-time
- Computer Science
- 8 years
- Analysis skills
- Paid parental leave
- Health savings account
Quick Apply
Senior Full-Stack Developer
New Home Star —Elmhurst, IL
- $73,000 - $88,000 a year
- Full-time
- 6 years
- Office
- SQL
- Health insurance
- Dental insurance
Senior Full-Stack Developer — WordPress/WooCommerce + Laravel
Digital Marketing Agency —United States
- $60,000 - $72,000 a year
- Full-time
- Remote
- Google Workspace
- 7 years
- No background check
- Health insurance
- Employee discount
Quick Apply
1d

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Sr. Manufacturing Systems Programmer
MS Companies —Reynoldsburg, OH
The ideal candidate will possess a strong blend of software development, manufacturing systems support, SQL/database management, and operational troubleshooting…
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14d
Sr. PHP Developer
Datanormus —Dublin, OH
Capable to developing websites from scratch independently Should understand complex PHP coding structures and add plugin/add-on features.
$42,000 a year

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Staff/Senior Software Engineer (Python/PHP)

Ontrac Solutions
Chicago, IL

Quick Apply

Job Details

Full-time

Qualifications

Containerization systems
Performance monitoring
Software engineering
Engineering development testing
IT system monitoring
Scalable systems
Encrypted communication protocols
Programming languages
Production systems
Splunk
Log analysis tools
User acceptance testing
Scalability
Developing and maintaining backend systems
Monitoring system implementation
Integration testing
Unit testing
Network monitoring tools
Distributed computing
Cloud monitoring
RHEL

Full Job Description

Overview
We are seeking a highly skilled and experienced Staff/Senior Software Engineer to support a critical customer engagement focused on application and platform modernization.

This role is ideal for a seasoned engineer capable of leading modernization efforts and breaking down monolithic architectures into container-based services on GCP, with strong Python experience. The successful candidate will work closely with engineering managers and customer stakeholders to ensure project success from initial definition through final delivery.

What your application must clearly show
We screen against the requirements below exactly as written — your resume should make these easy to find:

10+ years of backend software development.
Recent, hands-on Python (3.11+) AND PHP (8.x) — this role genuinely uses both; applications showing only one language will not pass screening.
A real example of deconstructing a monolith into container-based services, ideally on Google Cloud.
OpenSSL / secure communication implementation experience.
Testing discipline: unit, integration, and acceptance tests on production systems.

Shortly after you apply you will receive a short role-specific questionnaire — completing it promptly is the fastest way to move into screening.

Required Credentials:

A degree in computer science or a related field.
10+ years of relevant work experience in software development, focused on backend development, specifically with Python experience.

Required Qualifications:

8+ years of strong expertise developing applications using Python (3.11+) and PHP (8.4.x).
Extensive Python experience, with the ability to understand an existing complex codebase and lead development efforts.
Extensive experience deconstructing monolithic architectures into container-based services to enhance scalability and maintainability.
Experience working with cloud platforms, specifically Google Cloud.
Technical proficiency with OpenSSL and implementing secure communication protocols across distributed platforms.
Exposure to metrics and monitoring tools such as Chronosphere, Prometheus, and Grafana.
Familiarity with logging solutions, specifically transitioning from Splunk to Splunk Cloud.
Exposure to OS/package management, including RHEL7 to EL8/9 shifts and migrations from proprietary package management to RPM.
Strong proficiency writing unit, integration, and acceptance tests.

Useful Qualifications:

Previous experience with internal network-automation services and platforms.
Experience mentoring mid-level engineers to reduce single points of failure (SPOFs).
Experience partnering with Principal Engineers on large-scale cloud migrations.

Scope and Solution Expectations:

Bring extensive Python and PHP experience to drive and lead development efforts.
Lead application and platform modernization across internal network-automation services, breaking monoliths into container-based services on GCP.
Drive language and library upgrades (Python 3.11+, PHP 8.4.x, OpenSSL), own design and reviews, and mentor junior developers.
Build and extend metrics paths as the platform moves from a legacy metrics system to Chronosphere, Prometheus, and Grafana.
Partner on the migration from Splunk to Splunk Cloud or alternative solutions.
Collaborate with product engineers on OS and package shifts (RHEL7 to EL8/9, proprietary packaging to RPM) and cloud migrations, owning feature delivery in support of the broader digital transformation.
Collaborate with cross-functional teams, including product managers, designers, and other engineering teams, to define requirements and drive technical solutions.
Drive the adoption of best practices for software development, including testing, code reviews, and continuous integration and delivery.
Troubleshoot and debug complex issues across the distributed system, identifying root causes and implementing effective solutions.

__________________________________

(https://pinpointverify.com/ontrac)

Ontrac Solutions has partnered with PinpointVerify to help genuine applicants rise above the noise. Today, qualified candidates are too often overshadowed by fake and fraudulent applications. PinpointVerify gives our recruiters confidence that you are exactly who you say you are — and gives you a portable verification credential you can share with any employer.

Applicants who complete verification are prioritized over non-verified candidates with comparable experience. And if you're hired, Ontrac reimburses the full cost of your verification.
Get verified https://pinpointverify.com/ontrac

Quick Apply

Refine Your Search

senior software engineer (php) jobs in illinois

Staff/Senior Software Engineer (Python/PHP)

Senior Software Engineer

Sr Full Stack Software Engineer

Senior Web Developer

Senior Web Developer

Sr. Software Development Engineer in Test (SDET)

Sr. RPG Developer

Senior Full-Stack Developer

Senior Full-Stack Developer — WordPress/WooCommerce + Laravel

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