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Jr Developer Jobs in Alton, IL (NOW HIRING)

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our Geospatial Services & Solutions (GSS) team to build high-performance, cost-effective software ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our Geospatial Services & Solutions (GSS) team to build high-performance, cost-effective software ...

Meridian Systematics

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Vision insurance Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our Geospatial Services & Solutions (GSS) team to build high-performance, cost-effective ...

Sovereign Technologies

C# Web Developer

Saint Louis, MO · On-site

As a Web Developer, work with members of a Scrum / Agile project team to develop the site concept, interface design, and architecture of the company website. Under general direction, you will design ...

The Timberline Group

Lead Software Developer

Saint Louis, MO · On-site +1

$112K - $141K/yr

The Lead IT Software Developer is a well-rounded expert on the team in Front-End frameworks (Aurelia, Angular and such) and Back-End (Microsoft SQL and C#/.NET). He / She is the go-to person for any ...

Worky

Senior Software Developer

O Fallon, IL · On-site

$110K - $120K/yr

Everforth ECS is seeking a Senior Software Developer to work in our O'Fallon, IL office. ECS Federal LLC is looking for a Senior Software Developer who possesses and applies expertise on multiple ...

JS Consulting

Senior Developer

Saint Louis, MO · On-site

$53 - $70/hr

Job Title- Senior Developer Project Location - Hybrid in Saint Louis, MO Duration- Full-time Visa- USC Must Have: Bachelor's Degree. Benefits: Excellent pay, comprehensive healthcare packages ...

Sovereign Technologies

Junior C# Developer

Saint Louis, MO · On-site

$65K - $84K/yr

Company Description The individual in the Programmer Analyst role is responsible for using technical skills and programming experience to define and program solutions to problems and requests of ...

Pyramid IT

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location - St. Louis, MO Duration: Long term contract Work Authorization status : US Citizen & Green card only Mandatory Skills: J2EE (Java, JSP, Servlets, Filters, Listeners, JSTL, EL ...

TecTammina

Drools / JBOSS Developer

Saint Louis, MO

$49.50 - $64.25/hr

Application Designer/Developer for Redhat DROOLS Business Rules Management System [BRMS]. Develop, test and deploy complex rules in DROOLS Fusion and DROOLS CEP Experience with configuring and ...

Esri

Application Developer - JavaScript

Saint Louis, MO · On-site

$83K - $141K/yr

Overview We are seeking an Application Developer to join Esri's Geo Experience Center team, where you will contribute to building prototype applications that explore digital cartography, advanced map ...

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Showing results 21-40

All JobsJr Developer JobsJr Developer Jobs in Alton, IL

Jr Developer information

See Alton, IL salary details

$23.1K

$85.6K

$132.2K

How much do jr developer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for jr developer in Alton, IL is $85,560.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,400.00 and $83,700.00 per year, depending on experience, location, and employer.

What is a jr developer?

Jr Developers, or Junior Developers, are entry-level professionals in the software development field. They typically have less experience than mid-level or senior developers and are responsible for writing, testing, and maintaining code under the guidance of more experienced team members. Jr Developers often work on smaller tasks, bug fixes, or simple features, and are expected to learn and grow their technical skills through mentorship and hands-on experience. Their role is essential for building a solid foundation in software development and contributing to the success of development projects.

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

To thrive as a Jr Developer, you need a foundational understanding of programming languages (such as JavaScript, Python, or Java), basic software development principles, and often a relevant degree or coding bootcamp certification. Familiarity with version control systems like Git, IDEs, and workflow tools like Jira or Trello is typically required. Strong problem-solving skills, effective communication, and eagerness to learn help Jr Developers stand out in the workplace. These abilities are crucial for efficiently contributing to team projects, adapting to new technologies, and growing within a dynamic development environment.

What are some common challenges a jr developer might face when joining a new team, and how can they overcome them?

As a Jr Developer, one of the most common challenges is adapting to unfamiliar codebases and workflows. It can be daunting to understand existing projects and navigate team-specific tools and processes. To overcome this, Jr Developers should proactively seek help from team members, take thorough notes, and dedicate time to reviewing documentation and code. Embracing code reviews and asking questions will not only accelerate learning but also help build relationships within the team.

What is the difference between Jr Developer vs Junior Software Engineer?

AspectJr DeveloperJunior Software Engineer
Required CredentialsTypically an associate degree or coding bootcamp certificationUsually a bachelor's degree in computer science or related field
Work EnvironmentEntry-level, supervised tasks, learning-focusedSimilar entry-level environment, often with more complex project involvement
Employer & Industry UsageCommon in tech companies, startups, and IT departmentsUsed interchangeably in many companies, especially in software development teams
Search & Comparison IntentYes, often compared for entry-level rolesYes, often searched as a more formal or technical title

While both roles are entry-level software development positions, a Jr Developer often emphasizes basic coding tasks and learning, whereas a Junior Software Engineer may involve more structured engineering responsibilities. The titles are frequently used interchangeably, but understanding the specific job description can clarify expectations.

How hard is it to get a junior developer job?

Securing a junior developer position typically requires foundational programming skills, a portfolio of projects, and familiarity with relevant tools like Git and common programming languages. Entry-level roles are often competitive, but candidates with relevant internships, certifications, or coding bootcamp experience have better chances of being hired.

How to get hired as a junior developer?

To get hired as a junior developer, build a strong foundation in programming languages like JavaScript, Python, or Java, and create a portfolio of projects to demonstrate your skills. Gaining experience through internships, coding bootcamps, or contributing to open-source projects can improve your chances, along with obtaining relevant certifications and preparing for technical interviews.

What cities near Alton, IL are hiring for Jr Developer jobs?

Cities near Alton, IL with the most Jr Developer job openings:

Jr Developer jobs near you
Infographic showing various Jr Developer job openings in Alton, IL as of August 2026, with employment types broken down into 77% Full Time, 12% Part Time, and 11% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $85,560 per year, or $41.1 per hour.

Mid Level .Net Developer

Saint Louis, MO • On-site, Remote

The Timberline Group
See more jobs at The Timberline Groupexternal

Full-time

Re-posted 4 days ago

Job description

Developer
Client is one of the fastest growing payment processing companies in the country.This year they will process $14 billion in annual transaction volume for 45,000 merchants.
Our team is a growing group of software developers dedicated to creating great software and growing the value of the company.
If you are a good fit for our team, you will:
  • Be capable of owning problems and working with others to solve them.
  • Share knowledge freely with those around you.
  • Ask questions to challenge assumptions.
  • Capable of solving a problem from conception to delivery in production.
  • Have a thirst for learning.
  • Offer help to ensure the team is successful.
  • Have experience with object oriented development using C#.
  • Be comfortable with TDD and unit testing frameworks.

If you join our team, expect to:
  • Develop software using an agile methodology.This entails:
    • Iterative development over 2-week sprints.
    • Extensive use of TDD.
    • Pair programming.
  • Work with tools such as Visual Studio, git, TFS, and SSMS.
  • Work with the latest .NET frameworks, including .NET Core and ASP.NET Core.
  • Build microservice applications capable of scaling with our business.
  • Modify existing applications to keep up with our ever-changing business.

The team works in an open environment that promotes collaboration and pair programming.
The Timberline Group
Phone: 636-209-5537
PO Box 385, Lebanon, MO 65536
www.timberlinegrp.com
resumes@timberlinegrp.com
"Delivering quality solutions through quality people"

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