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Part Time Software Developer Jobs in Belleville, IL

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

Experience with software design patterns * Knowledge of embedding models, vector databases, and ... Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible ...

Data Engineer

O Fallon, IL · On-site

$61K - $141K/yr

Experience creating software for retrieving, parsing, and processing structured and unstructured ... Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible ...

Part Time Software Developer information

See Belleville, IL salary details

$46.6K

$108.6K

$161.2K

How much do part time software developer jobs pay per year?

As of Jun 26, 2026, the average yearly pay for part time software developer in Belleville, IL is $108,636.00, according to ZipRecruiter salary data. Most workers in this role earn between $87,400.00 and $126,300.00 per year, depending on experience, location, and employer.

What Does a Part-Time Software Developer Do?

Part-time software developers can be involved in a wide variety of projects and technologies. Depending on the programming languages and frameworks with which you are familiar, you might code and debug anything from mobile applications to network management and monitoring programs. As the complexity and sophistication of computer systems increases, so does the variety of applications software developers can create. As a part-time software developer, your duties and responsibilities require you to design, troubleshoot, test, and deploy applications and systems. Some positions offer flexible schedules and the option to work from home, while others require you to work at the company’s facilities.

What are the key skills and qualifications needed to thrive as a Part Time Software Developer, and why are they important?

To thrive as a Part Time Software Developer, you need proficiency in programming languages (such as Python, Java, or JavaScript), a solid grasp of software development principles, and typically a relevant degree or equivalent experience. Familiarity with version control systems like Git, integrated development environments (IDEs), and cloud-based collaboration tools is highly beneficial. Effective time management, problem-solving, and strong communication skills help you deliver quality work efficiently in a flexible or remote setting. These skills and qualities are crucial for meeting project goals, collaborating with teams, and maintaining productivity despite reduced hours.

What is the difference between Part Time Software Developer vs Full Time Software Developer?

AspectPart Time Software DeveloperFull Time Software Developer
Work HoursLess than 30 hours/weekTypically 40 hours/week
CredentialsSame as full-time, often includes relevant certificationsSame as part-time, often with more experience
Work EnvironmentFreelance, remote, or flexible settingsOffice or remote, full-time employment
Employer UsageContract or part-time roles in tech companies or startupsPermanent roles in larger organizations or tech firms

Part Time Software Developers typically work fewer hours, often in freelance or contract roles, while Full Time Software Developers work standard hours as permanent employees. Both roles require similar skills and credentials, but differ mainly in hours, benefits, and employment status.

What is a Part Time Software Developer?

A Part Time Software Developer is a professional who designs, develops, tests, and maintains software applications while working fewer hours than a full-time employee, typically less than 35-40 hours per week. These developers may work for a single company or take on multiple projects for different clients. Part time roles can offer flexibility for students, parents, or those seeking work-life balance, while still allowing them to contribute technical skills to software development projects.

How do part-time software developers typically integrate with full-time teams and ongoing projects?

Part-time software developers often collaborate closely with full-time team members by participating in regular stand-up meetings, code reviews, and using project management tools to stay aligned with project goals. They may focus on specific tasks or modules that can be completed within their available hours, but communication is key to ensuring a smooth workflow. While balancing limited hours can be challenging, most teams provide flexibility and clear documentation to support part-time contributors. This integration allows part-time developers to make meaningful contributions without compromising project momentum.
What are the most commonly searched types of Software Developer jobs in Belleville, IL? The most popular types of Software Developer jobs in Belleville, IL are:
What job categories do people searching Part Time Software Developer jobs in Belleville, IL look for? The top searched job categories for Part Time Software Developer jobs in Belleville, IL are:
What cities near Belleville, IL are hiring for Part Time Software Developer jobs? Cities near Belleville, IL with the most Part Time Software Developer job openings:
Agentic AI Developer

$99K - $225K/yr

Full-time, Part-time

Medical, Life, Retirement, PTO

Posted 21 days ago


Booz Allen Hamilton rating

8.8

Company rating: 8.8 out of 10

Based on 47 frontline employees who took The Breakroom Quiz

9th of 57 rated business consultants


Job description


Remote Work:
Hybrid
Job Number:
R0241538
Location:
O'Fallon,IL,US
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Agentic AI Developer
The Opportunity:
As an experienced engineer, you know that machine learning is critical to understanding and processing massive datasets. Your ability to conduct statistical analyses on business processes using ML techniques makes you an integral part of delivering a customer-focused solution. We need your technical knowledge and desire to problem-solve to support critical advancements in the Department of War. As a machine learning engineer on our Defense Technology team, you'll train, test, deploy, and maintain models that learn from data to create real-world, mission-critical impacts.
In this role, you'll own and define the direction of mission-critical solutions by applying best-fit ML algorithms and technologies and through the development, deployment, and management of AI agents. You'll be part of a talented team of machine learning engineers across the company and collaborate withdata engineers and product owners to deliver world class solutions to develop cutting edge AI agents capable of solving our military's most challenging missions. Your skills and extensive technical expertise will guide clients as they navigate the landscape of ML algorithms, tools, and frameworks.
Work with us to solve real-world challenges and define ML strategy for the Department of War.
Join us. The world can't wait.
You Have:
  • 3+ years of experience within Machine Learning engineering, data science, data engineering, or software development
  • Experience developing applications using Large Language Models (LLMs)
  • Experience with programming languages such as Python or Java
  • Experience with software design patterns
  • Knowledge of embedding models, vector databases, and semantic search
  • Knowledge of AI safety, guardrails, and responsible AI practices
  • Knowledge of agent planning, reasoning, and execution loops
  • Ability to obtain a Secret clearance
  • Bachelor's degree

Nice If You Have:
  • Experience working with Department of War data or on systems with advanced cyber security requirements
  • Experience with Retrieval-Augmented Generation (RAG) architectures
  • Experience with LangGraph
  • Experience with model evaluation and AI quality metrics
  • Secret clearance
  • Master's degree in AI or a related field

Clearance:
Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information.
Compensation
At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen's benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.
Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $99,000.00 to $225,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen's total compensation package for employees. This posting will close within 90 days from the Posting Date.
Identity Statement
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.
Candidate AI Usage Policy
AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided.
Work Model
Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings.
  • Remote: If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility.
  • Hybrid: If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility.
  • Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.

Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.
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About Booz Allen Hamilton

Sourced by ZipRecruiter

Booz Allen Hamilton is a leading provider of management and technology consulting services to the US government in defense, intelligence, and civil markets. Headquartered in McLean, Virginia, the firm also serves major corporations, institutions, and not-for-profit organizations. Founded in 1914 by Edwin G. Booz, the company has a long-standing tradition of helping clients achieve success by delivering a wide range of consulting services that include strategic planning, human capital and learning, communication, systems development, and others. The company's mission is to empower people to change the world, and it has a reputation for maintaining the highest standards of integrity and-excellence.

Industry

It services

Company size

10,000+ Employees

Headquarters location

McLean, VA, US

Year founded

1914