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Entry Developer Jobs in Belleville, IL (NOW HIRING)

TekWissen LLC

IT Data Engineer (Entry)

Creve Coeur, MO · On-site

$58/hr

Job Title: IT Data Engineer (Entry) Location: Creve Coeur, MO 63167 Duration: 12 Months Job Type: Temporary Assignment Work Type: Hybrid Position Overview: We are seeking a highly motivated data ...

Adecco

Developer

Saint Louis, MO · On-site

$55 - $65/hr

If Developer sounds like something you are interested in, and you meet the qualifications listed below, apply now! Responsibilities for Developer include but are not limited to: · 40% - Working as a ...

Stifel

Developer II

Saint Louis, MO

The Developer II will participate in all phases of the development process including design, integration and maintenance while observing proper behaviors, patterns, and standards. The Developer II ...

Stifel

Developer II

Saint Louis, MO

The Developer II will begin to learn cross-disciplinary development skills in a full-stack environment. The Developer II will ensure that Stifel's best practices are used in all development projects ...

Stifel

Developer II

Saint Louis, MO · On-site

The Developer II will begin to learn cross-disciplinary development skills in a full-stack environment. The Developer II will ensure that Stifel's best practices are used in all development projects ...

Booz Allen Hamilton

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

R0241538 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 ...

kindeva

Metrology Engineer I

Bridgeton, MO

Must be able to complete and pass gowning qualification for entry into aseptic core * Instrument ... Associates degree in a scientific or engineering discipline * 3+ years of related experience with ...

kindeva

Metrology Engineer I

Bridgeton, MO

Must be able to complete and pass gowning qualification for entry into aseptic core * Instrument ... Associates degree in a scientific or engineering discipline * 3+ years of related experience with ...

kindeva

Metrology Engineer I

Bridgeton, MO

Must be able to complete and pass gowning qualification for entry into aseptic core * Instrument ... Associates degree in a scientific or engineering discipline * 3+ years of related experience with ...

Stratford Davis

Junior Developer

Saint Louis, MO · On-site +1

$85K - $120K/yr

Our engineering group values continuous learning, clean code, and collaborative problem-solving, offering early-career developers an ideal environment to grow their technical skill set alongside ...

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All JobsEntry Developer JobsEntry Developer Jobs in Belleville, IL

Entry Developer information

See Belleville, IL salary details

$28.7K

$97.4K

$234.6K

How much do entry developer jobs pay per year?

As of Jul 26, 2026, the average yearly pay for entry developer in Belleville, IL is $97,388.00, according to ZipRecruiter salary data. Most workers in this role earn between $61,700.00 and $103,000.00 per year, depending on experience, location, and employer.

What is the difference between Entry Developer vs Junior Developer?

AspectEntry DeveloperJunior Developer
Required CredentialsHigh school diploma or associate degree, basic coding skillsSimilar credentials, often with some coding coursework or certifications
Work EnvironmentEntry-level positions in tech companies, startups, or internshipsJunior roles in software teams, often under supervision
Employer & Industry UsageCommon in tech industries, entry-level job listingsWidely used in software development companies, tech sectors

Entry Developer and Junior Developer roles are similar, both requiring basic coding skills and entry-level credentials. The terms are often used interchangeably, with slight variations depending on the company. Both positions serve as stepping stones into software development careers, offering opportunities to gain practical experience and grow into more advanced roles.

What is L1, L2, L3, and L4 developer?

In the context of entry-level developer roles, L1, L2, L3, and L4 typically refer to different levels of experience and responsibility, with L1 being the most junior and L4 more senior. These levels often indicate increasing technical skills, problem-solving ability, and independence, and are used by organizations to structure career progression and assign appropriate tasks. As an entry developer, understanding these levels can help clarify expectations and growth opportunities within a company.

What are entry developers?

Entry developers, sometimes called junior developers, are professionals who are at the beginning of their software development careers. They typically have basic programming skills and work under the guidance of more experienced developers to build, test, and maintain software applications. Entry developers often focus on learning new technologies, writing simple code, fixing bugs, and gradually taking on more complex tasks as they gain experience. Their role is essential for gaining practical knowledge and growing into more advanced development positions.

What are the key skills and qualifications needed to thrive as an Entry Developer, and why are they important?

To thrive as an Entry Developer, you need foundational programming skills, understanding of software development principles, and typically a degree in computer science or a related field. Familiarity with coding languages such as Java, Python, or JavaScript, as well as version control systems like Git, is often required. Strong problem-solving abilities, attention to detail, and willingness to learn new technologies set successful candidates apart. These skills are crucial for delivering reliable code, collaborating effectively with teams, and adapting to evolving project requirements.

What types of projects and tasks can an Entry Developer typically expect to work on in their first year?

As an Entry Developer, you’ll often start by handling smaller, well-defined tasks such as fixing bugs, writing unit tests, or implementing simple features under the guidance of more experienced developers. You’ll likely participate in code reviews, attend daily stand-up meetings, and collaborate closely with team members to learn best practices and company coding standards. Over time, as you gain confidence and show proficiency, you may be given more complex assignments and opportunities to contribute to larger projects, setting a strong foundation for career growth.

Will AI replace developers in 2026?

Entry developers will continue to play a vital role in software development, as AI tools are designed to assist rather than fully replace human programmers. While AI can automate routine coding tasks, skills such as problem-solving, system design, and understanding user needs remain essential for developers in 2026 and beyond.

What engineer makes $500,000 a year?

Senior software engineers, especially those in specialized fields like machine learning, AI, or working at major tech companies, can earn $500,000 or more annually through base salary, bonuses, and stock options. High compensation often requires extensive experience, advanced skills, and working in competitive or executive-level roles within the tech industry.

How do I get a programming job with no experience?

Entry developer roles often require some programming knowledge, so gaining skills through online courses, coding bootcamps, or personal projects can help demonstrate your abilities. Building a portfolio, contributing to open-source projects, and learning relevant tools like Git and common programming languages can improve your chances, even without formal work experience.
What cities near Belleville, IL are hiring for Entry Developer jobs? Cities near Belleville, IL with the most Entry Developer job openings:
Entry Developer jobs near you
General Openings - Entry-level Engineer

General Openings - Entry-level Engineer

Nooter/Eriksen

Fenton, MO • On-site

Full-time

Medical, Dental, Retirement

Posted 13 days ago

Job description

Would you like to be a part of a company that is employee owned? Consider joining a talented team of engineering professionals at Nooter/Eriksen Inc., based in Fenton, MO. We specialize in HRSG (Heat Recovery Steam Generator) design, construction and supply of equipment and solutions in the power industry worldwide.

This is a general posting for Entry-Level Engineers majoring in Mechanical, Chemical, Civil, Electrical, Aerospace or a related Engineering field for opportunities in the following departments:

  • Quality
  • Projects
  • Mechanical/Structural
  • Instrumentation & Controls

About Nooter/Eriksen:

Nooter/Eriksen is an employee-owned company with headquarters in Fenton, MO and Milan, Italy.

We offer a flexible work schedule with the option of working half-days on Fridays, year-round! We provide a full benefits package. Our 401(K) provides an employer match and an annual non-elective contribution. We provide medical with an employer contribution toward the HSA. Dental and Short-Term disability are 100% covered by the company. We also offer a wellness plan and fitness reimbursement.

We pride ourselves on our collaborative environment where employees are empowered to advance their career, explore career paths, and grow personally and professionally.

KEY QUALIFICATIONS. We want the person selected for these roles to be successful! The following qualifications are essential to be effective in these roles:

  • Four-year college education in Mechanical, Civil, Chemical, Electrical or a related Engineering field with a minimum 3.0/4.0 overall GPA required.
  • Excellent problem-solving and time management skills, good judgment, ability to interpret data, analyze results and make quick decisions required. Highly professional, organized, and trustworthy team player; Proficiency in English.
  • Ability to read, write, problem solve, make quick decisions, interpret data and analyze results; effective written and verbal communication is essential.

If you are interested in being considered, please simply click the Apply button or visit Job Listings - Nooter/Eriksen Jobs (applicantpro.com) to get started! Our application is quick and should take you less than 5 minutes to fill out. Your information will be then sent directly to the Recruiter.

Nooter/Eriksen is committed to creating and maintaining an environment in which all employees feel valued, included, safe, and empowered to do their best work. We are proud to be an equal opportunity workplace and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, age, veteran status, or other characteristics.

Pre-employment drug screen and background check required.


Job Posted by ApplicantPro