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Weekend Application Developer Jobs in Illinois (NOW HIRING)

Investortools

Application Developer

Naperville, IL · On-site

$60 - $80/hr

What You'll Do Application Developers at Investortools design and build application functionality through technical analysis, testing, and debugging within our existing software suite, leveraging a ...

Law Firm

Be Seen First

Application Developer Engineer

Chicago, IL · On-site

$85K - $100K/yr

The Senior Application Developer role leads the customization and support of critical business applications and the data integrity across systems. They will lead the design and development of ...

Investortools

Application Developer

Naperville, IL · On-site

$80/hr

WhatYou'llDo Application Developers at Investortools design and build application functionality through technical analysis, testing, and debugging within our existing software suite,leveraginga ...

Strategic Employment

Sr Application Developer

Chicago, IL · Hybrid

$99K - $136K/yr

Senior Application Engineer (Boomi) - Chicago, IL (Hybrid) A well-established, growing professional services organization in downtown Chicago is hiring a Senior Application Engineer to own the ...

Investortools

Application Developer

Naperville, IL · On-site

$60K - $80K/yr

What You'll Do Application Developers at Investortools design and build application functionality through technical analysis, testing, and debugging within our existing software suite, leveraging a ...

Strategic Employment

Sr Application Developer

Chicago, IL · Hybrid

$99K - $136K/yr

Senior Application Engineer (Boomi) - Chicago, IL (Hybrid) A well-established, growing professional services organization in downtown Chicago is hiring a Senior Application Engineer to own the ...

UNAVAILABLE

Application Developer

Virginia, IL · On-site

$100 - $125/hr

... application development and subsequent revisions, so others are able to understand the program Required Experience, Skills, & Technologies * Strong Java programming/development skills, with hands-on ...

BAI

Application Developer

Chicago, IL · On-site +1

$65K - $90K/yr

Application Developer, ProSight Research Chicago, IL Reports To: Lead, Product Development BAI and RMA have come together as ProSight Financial Association, a leading industry organization whose ...

AVIAN, Inc.

Application Developer

Virginia, IL · On-site

$100 - $125/hr

... application development and subsequent revisions, so others are able to understand the program Required Experience, Skills, & Technologies * Strong Java programming/development skills, with hands-on ...

AVIAN LLC

Application Developer

Virginia, IL · On-site

$100 - $125/hr

... application development and subsequent revisions, so others are able to understand the program Required Experience, Skills, & Technologies * Strong Java programming/development skills, with hands-on ...

Swoon Group

Application Developer Expert

Chicago, IL · On-site

$60 - $70/hr

Aug 25, 2026 Swoon is actively hiring an OpenText Application Developer to join the team! What your day-to-day will look like * Provide Tier 3 production support and incident management for the ...

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Weekend Application Developer information

What is a weekend application developer?

Weekend Application Developers are software professionals who focus on designing, coding, testing, and maintaining applications during weekends or outside standard business hours. These roles are often filled by individuals who support ongoing projects, address urgent technical issues, or contribute to development tasks that require off-hours attention. Employers may hire weekend developers to ensure continuous progress on projects, minimize downtime, or provide 24/7 support for critical systems. This position typically requires strong programming skills, familiarity with development tools, and the ability to work independently with minimal supervision.

What are the key skills and qualifications needed to thrive as a weekend application developer?

To thrive as a Weekend Application Developer, you need proficiency in programming languages (such as Java, Python, or JavaScript), software development principles, and a relevant degree or coding certifications. Familiarity with version control systems like Git, cloud platforms, and development frameworks is typically required. Strong problem-solving abilities, time management, and effective remote communication are essential soft skills. These skills enable you to efficiently deliver high-quality software solutions while collaborating with teams or clients in a condensed weekend timeframe.

What are the common challenges faced by weekend application developers, and how can they be addressed?

Weekend Application Developers often face the challenge of limited collaboration with full-time team members, since much of the team may not be available during weekends. To address this, clear communication and thorough documentation are essential, ensuring that work transitions smoothly between shifts. Additionally, weekend developers may need to be more self-sufficient, managing issues independently and coordinating progress updates for handoffs. Regular check-ins with the weekday team and using collaborative tools can help bridge any gaps and maintain project momentum.

What are the most commonly searched types of Application Developer jobs in Illinois?

The most popular types of Application Developer jobs in Illinois are:

What cities in Illinois are hiring for Weekend Application Developer jobs?

Cities in Illinois with the most Weekend Application Developer job openings:

Weekend Application Developer jobs near you

Application Developer

Oakbrook Terrace, IL • On-site

Spotless Brands
Retail • 11 - 50 employees
Learn more about Spotless Brandsexternal

Full-time

Re-posted yesterday

Key responsibilities

  • Provide support and maintenance for business applications including POS, ERP/Accounting, and HCM/HRIS systems.

  • Design, develop, test, and deploy software applications and enhancements to meet business requirements.

  • Write, optimize, and maintain SQL queries, stored procedures, and scripts, and support database design and performance tuning.

Job description

Position Overview
The Application Developer at Spotless Brands (the "Company") is a key member of the IT department, responsible for both the development and ongoing support of the Company's portfolio of applications. This role combines hands-on software development with the operational expertise required to maintain, troubleshoot, and optimize commercial off-the-shelf (COTS) and custom-built solutions across all Company brands. The Application Developer is a vital resource in ensuring the operational integrity and continuous improvement of our applications landscape, including Point of Sale (POS), ERP/Accounting, HCM/HRIS, maintenance, marketing, back office, productivity, and collaboration systems. This individual will contribute to the full software development lifecycle while also serving as a skilled support resource - analyzing and resolving complex issues, driving system enhancements, and partnering with business stakeholders to ensure the efficiency and success of our business operations.
Essential Functions (Other Duties as Assigned)
Application Support and Maintenance
  • Provide expert-level support and maintenance for a wide range of business applications, including POS, ERP/Accounting, HCM/HRIS, and other critical systems.
  • Analyze and resolve complex issues reported by end-users, ensuring minimal disruption to business operations.
  • Conduct regular system audits and perform maintenance tasks to ensure optimal performance and security.
  • Proactively identify opportunities for application optimization and lead continuous improvement initiatives.
  • Coordinate with application vendors for issue resolution and software updates, maintaining strong professional relationships.

Application Development
  • Design, develop, test, and deploy software applications and enhancements in support of business requirements across all Company brands.
  • Write clean, maintainable, and well-documented code using object-oriented programming principles in languages including C#, Java, and C++.
  • Develop and maintain scripts and automation tools using Python to improve operational efficiency and data workflows.
  • Lead the development and implementation of system enhancements and new functionalities to meet business requirements.
  • Build and maintain integrations between business applications, including POS, ERP, HCM/HRIS, and third-party platforms.

Database and Data Management
  • Write, optimize, and maintain complex SQL queries, stored procedures, and scripts across relational database platforms.
  • Support database design, schema management, and performance tuning in collaboration with the applications team.
  • Assist in the development and maintenance of data pipelines and reporting solutions that support business intelligence needs.

Cloud and Infrastructure
  • Develop and deploy applications utilizing Microsoft Azure or Amazon Web Services (AWS) cloud platforms, including compute, storage, and serverless services.
  • Apply basic networking knowledge (DNS, TCP/IP, VPNs, firewalls, load balancing) to support application connectivity, security, and performance.
  • Collaborate with the IT Infrastructure and Cybersecurity teams to ensure applications meet security and compliance standards.

Stakeholder Engagement and Project Management
  • Work closely with business stakeholders to understand their needs and enhance application functionality and performance.
  • Manage projects related to application upgrades, integrations, and new deployments, ensuring timely completion within budget.
  • Train and mentor junior developers and support analysts and end-users on application features and best practices.

Documentation
  • Develop and maintain detailed documentation on application configurations, processes, troubleshooting guides, design specifications, API documentation, and release notes.

Education and Experience
  • Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field.
  • Minimum of 5 years of experience in software development or application engineering.
  • Proficiency in one or more object-oriented programming languages: C#, Java, or C++.
  • Proficiency in Python for scripting, automation, or data processing tasks.
  • Strong SQL skills including query writing, stored procedures, and database troubleshooting across platforms such as SQL Server, MySQL, or PostgreSQL.
  • Hands-on experience with Microsoft Azure or AWS cloud services.
  • Working knowledge of basic networking concepts including TCP/IP, DNS, HTTP/S, VPN, and firewall configurations.
  • Experience with software development lifecycle (SDLC), version control (Git), and Agile or Scrum methodologies.
  • Experience supporting or integrating with POS, ERP, or HCM/HRIS systems is preferred but not required.
  • Experience in the car wash or retail industry is a plus.

Knowledge, Skills, and Abilities
  • Strong analytical and problem-solving skills with the ability to design and implement effective technical solutions.
  • Ability to work collaboratively with cross-functional teams and translate business requirements into technical deliverables.
  • Excellent communication and interpersonal skills, with the ability to interact effectively with both technical and non-technical stakeholders.
  • Self-motivated with strong organizational skills and the ability to manage multiple priorities in a fast-paced environment.
  • Strong time management skills and the ability to shift priorities efficiently.
  • Experience with project management activities and cross-functional initiatives.
  • Commitment to writing secure, reliable, and well-tested code.
  • Demonstrates integrity and ethical behavior.
  • Willingness to learn new technologies and adapt to evolving business needs.

Physical Requirements:
  • Extended periods of sitting.
  • The work environment is typical of an office setting. The noise level is usually quiet.
  • Travel requirements less than 10%.

This job description in no way states or implies that these are the only duties to be performed by the employee(s) in this position. Employee(s) will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments.
All duties and responsibilities are essential job functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities. To perform this job successfully, the incumbent(s) will possess the skills, aptitudes, and abilities to perform each duty proficiently. The requirements listed in this document are the minimum levels of knowledge, skills, and abilities.
Spotless Brands and its subsidiaries comply with federal and state disability laws and make reasonable accommodation for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or recruitment process, please contact the Human Resources department and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Human Resources team will respond to your email promptly.
Spotless Brands and its affiliate brands are Equal Employment Opportunity (EEO) employers. Spotless Brands invites all qualified interested applicants to apply for career opportunities. It is the policy of the company to provide equal opportunities to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran, disabled status or any other protected group status as defined by and subject to applicable federal, state and local laws. We use E-Verify to check employment eligibility: https://www.everify.gov/sites/default/files/everify/posters/EVerifyParticipationPoster.pdf and https://www.e-verify.gov/sites/default/files/everify/posters/IER_RightToWorkPoster%20Eng_Es.pdf
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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