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Jr Developer Jobs in Alton, IL (NOW HIRING)

RiVidium Inc. is seeking a Full Stack Software Developer to develop, create, maintain, and write/code new (or modifies existing) computer applications, software, or specialized utility programs.

Java/Angular Developer

Saint Louis, MO · On-site +1

$49.50 - $64.25/hr

The developer will meet with clients, analyze client requirements, propose & construct solutions and develop B2B and B2C incentive and ecommerce applications. Basic Qualifications * Bachelor of ...

Java/J2EE Developer

Saint Louis, MO · On-site +1

$49.50 - $64.25/hr

Master's degree in Computer Science, Information Science, Electronic or Electrical Engineering or any related field of study, plus three (3) years of experience in the job offered or any related ...

Sr. Scala Developer

Saint Louis, MO · On-site

$53 - $70/hr

Sr. Scala Developer 12+ Months St. Louis, Missouri 08-03-2015 Senior Scala Developer w/hands-on experience writing Scala architecture on OS X and AWS models -- experience coding in Clojure, Java, and ...

We are seeking a Software Engineer to support unique systems solutions for the National Geospatial-Intelligence Agency (NGA). We are seeking a Software Engineer to support our client's intelligence ...

Junior Application Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required:

Software Developer Lead

Saint Louis, MO · On-site

$112K - $141K/yr

Software Developer Lead Location: HYBRID, St. Louis, MO (2x a week on-site) Security Clearance: Active U.S. DoW TS/SCI Clearance We question. We listen. We adapt. Be honest. Be pragmatic. Omni ...

Java Developer

Saint Louis, MO · On-site +1

$49.50 - $64.25/hr

Strong understanding of Object Oriented Programming * Analyze and develop Java solutions based on customers' needs * The ability to develop technical documentation * Proficient knowledge of Java ...

Showing results 41-60

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:

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.

Software Developer - Advanced

Saint Louis, MO

RIVIDIUM
IT Services • 11 - 50 employees

$150K - $160K/yr

Full-time

Re-posted 8 days ago


Job description

RiVidium Inc. is seeking a Full Stack Software Developer to develop, create, maintain, and write/code new (or modifies existing) computer applications, software, or specialized utility programs.

Tasks:

  • Automate the Risk Management Framework (RMF) process to the fullest extent.
  • Develop custom tools and dashboards, including executive data visualizations in Tableau, to support and enhance system continuous monitoring efforts.
  • Lead intermediate-level developers to success.
  • Act as a customer-facing representative engaging with key stakeholders.
  • Serve as a Frontend Designer to develop and design application interfaces using HTML, CSS, JavaScript, and React.
  • Write, develop, and deploy robust code across the full stack, utilizing languages such as Python.
  • Develop, integrate, and maintain databases to support backend application requirements.
  • Communicate effectively with all levels of personnel, both technical and non-technical.
  • Analyze information to determine, recommend, and plan the development of a new application or modification of an existing application.
  • Analyze user needs and software requirements to determine feasibility of design within time and cost constraints.
  • Apply coding and testing standards, apply security testing tools including "'fuzzing" static-analysis code scanning tools, and conduct code reviews.
  • Apply secure code documentation.
  • Capture security controls used during the requirements phase to integrate security within the process, to identify key security objectives, and to maximize software security while minimizing disruption to plans and schedules.
  • Compile and write documentation of program development and subsequent revisions, inserting comments in the coded instructions so others can understand the program.
  • Confer with systems analysts, engineers, programmers, and others to design application and to obtain information on project limitations and capabilities, performance requirements, and interfaces.
  • Consult with engineering staff to evaluate interface between hardware and software.
  • Correct errors by making appropriate changes and rechecking the program to ensure that desired results are produced.
  • Design, develop, and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.
  • Develop secure code and error handling.
  • Evaluate factors such as reporting formats required, cost constraints, and need for security restrictions to determine hardware configuration.
  • Identify basic common coding flaws at a high level.

Abilities:

  • Ability to demonstrate a deep knowledge of software development and showcase a high level of understanding.
  • Ability to design and develop continuous monitoring tools and dashboards, analyzing and visualizing complex data using Tableau and other technologies.
  • Ability to operate effectively as a Full Stack Developer using Python, HTML, CSS, and JavaScript.
  • Ability to build interactive user interfaces using React and design robust database structures.
  • Ability to understand and apply the Risk Management Framework (RMF).
  • Ability to tailor code analysis for application-specific concerns.
  • Ability to use and understand complex mathematical concepts (e.g., discrete math).
  • Ability to develop secure software according to secure software deployment methodologies, tools, and practices.
  • Ability to apply cybersecurity and privacy principles to organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation).
  • Ability to identify critical infrastructure systems with information communication technology that were designed without system security considerations.
  •  

Requirements:

  • Must possess established Risk Management Framework (RMF) knowledge upon hire.
  • Demonstrated experience with Python, HTML, CSS, JavaScript, and React.
  • Demonstrated experience working with databases, building visualizations in Tableau, and developing tools for continuous monitoring.
  • Bachelor degree or higher from an accredited college or university
  • Prefer an accredited Computer Science, Cyber Security, Information Technology, Software Engineering, Information Systems, or Computer Engineering degree; or a degree in a Mathematics or Engineering field.

Certifications: IAT Level 2

Active TS/SCI clearance required with the ability to get a CI Poly

The annual salary range for this position is $150,000–$160,000.

The listed salary range represents a general guideline; however, RiVidium Inc. considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate’s experience, education, skills, and current market conditions. At RiVidium Inc. it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case.