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Jr Developer Jobs in Alton, IL (NOW HIRING)

Jr DevOps Engineer

Saint Louis, MO · On-site

$51.25 - $70.25/hr

Overview Abile Group has an exciting and challenging opportunity for a Jr DevOps Engineer on a 10 year contract providing User Facing and Data Center Services supporting an Intelligence Community ...

Junior DevOps Engineer

Saint Louis, MO · On-site

$51.25 - $70.25/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

As a Jr DevOps Engineer on our team, you will be responsible for distributed and managed services automating the installation, configuration and maintenance of platform services. Specific Duties and ...

C# Developer (Jr and Sr Roles)

Saint Louis, MO · On-site

$53 - $70/hr

Client is looking for a C# developer to assist a growing team to work on innovative and leading edge solutions. We are looking for someone to join an existing, motivated and productive development ...

Application programming interfaces (APls). * Remote sensing expertise - EO, SAR, MASINT, IR, and LiDAR. * High School Diploma and 2+ years of GEOINT Intelligence experience.

New

BSME, BSEE or equivalent undergraduate study, SO, JR or early SR level * Able to work minimum 24 hours / week (40 preferred) * Experience with common shop hand tools * CAD experience (Pro Engineer ...

Talent Manager

Saint Louis, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Position Summary The Programming Manager / Jr.Talent Buyer works directly under the Senior Programming Director and is responsible for booking and developing local and regional programming across ...

Talent Manager

Saint Louis, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Position Summary The Programming Manager / Jr.Talent Buyer works directly under the Senior Programming Director and is responsible for booking and developing local and regional programming across ...

Software Developer

Saint Louis, MO · On-site

  • Medical

  • Retirement

  • PTO

NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services ...

Software Developer

Saint Louis, MO · On-site

  • Medical

  • Retirement

  • PTO

NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can ...

As a Developer, you will play a pivotal role in transforming business needs into innovative, scalable software solutions. In this hands-on, individual contributor role, you'll drive the software ...

Mulesoft Developer

Saint Louis, MO · On-site

  • Medical

  • Retirement

  • PTO

Our software engineering positions provide you the opportunity to join a team of talented engineers working with leading-edge technology. You are ideal for this position if you are a forward-thinking ...

Developer II

Saint Louis, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Developer II

Saint Louis, MO · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Java Developer

Saint Louis, MO

$49.50 - $64.25/hr

Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services ...

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Showing results 1-20

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 Aug 13, 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 does a junior developer do?

A junior developer assists in designing, coding, testing, and maintaining software applications under the supervision of senior developers. They typically work with programming languages like Java, Python, or JavaScript and use development tools such as version control systems. Their role involves learning best practices and gaining experience in software development processes.

How much does a junior developer get paid?

A junior developer typically earns between $50,000 and $70,000 annually, depending on location, industry, and skills. Entry-level roles often require knowledge of programming languages like JavaScript, Python, or Java, and may include benefits such as training and mentorship.

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.

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 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 79% Full Time, 6% Part Time, and 15% Contract. Highlights an 84% Physical, 3% Hybrid, and 13% Remote job distribution, with an average salary of $85,560 per year, or $41.1 per hour.

Jr DevOps Engineer

Abile Group, Inc.

Saint Louis, MO • On-site

$51.25 - $70.25/hr

Full-time

Re-posted 5 days ago


Job description

Overview

Abile Group has an exciting and challenging opportunity for a Jr DevOps Engineer on a 10 year contract providing User Facing and Data Center Services supporting an Intelligence Community customer.  All the personnel on the team will work together to support innovative design, engineering, procurement, implementation, operations, sustainment and disposal of user facing and data center information technology (IT) services on multiple networks and security domains, at multiple locations worldwide, to support the IC mission.

The right candidate will possess the below skills and qualifications and be ready to handle all responsibilities independently and professionally.

Responsibilities
  • Automates and optimizes service deployments.
  • Integrates with enterprise authentication services.
  • Establishes and Improves system monitoring while maintaining established security protocols within development, test, and production systems.
  • Architects, builds and maintains On-Prem and cloud infrastructure to support team and customer initiatives.
  • Maintains and improves existing infrastructure (build out autoscaling, support new services, optimize for cost efficiencies/authentication/search, etc.)
  • Administers production, staging and development environments.
  • Manages and aggregates server logs and monitors for security and system related incidents.
  • Monitors and analyzes system performance, such as server load and resource usage.
  • Maintains and improves existing build and deployment processes using CI/CD tools.
  • Applies configuration management disciplines to maintain software revisions, security patches, hardening, and documentation.
  • Enforces best practices for security and reliability, and drives security initiatives, like access control and vulnerability testing.
  • Works with A&A Teams to maintain security requirements for operation of systems.
  • Maintains documentation of designs/configurations, ensuring team members have continuity of recurring tasks.
  • Follows up on engineering tasks for operational solutions and validate completion.
  • Manages operational readiness board - presents at weekly meetings and determines if development services are ready for automation based on best practices and maintainability.
  • Tracks and ensures routine operations maintenance tasks are completed in a timely manner.
  • Participates in SAFe and Scrum development teams and meetings.
  • On-call support will be required.
Qualifications

Clearance Required: TS/SCI with eligibility to obtain CI poly

Degree and Years of Experience: Bachelor's Degree in Computer Programming, Science, Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

  • 2+ years of relevant experience.

Required Skills:

  • Experience working with container images and platforms (Kubernetes/Docker/OpenShift)
  • Strong understanding of DevOps and software/application development processes.
  • Understanding of GitLab or other DevOps/Continuous Integration tools.
  • Understanding of microservice design and architectural pattern best practices.
  • Understanding of Python, Bash, and Shell scripting.
  • Knowledge of network technologies, common infrastructure components, load balancers, firewalls, virtual and physical infrastructure design.
  • Strong problem solving and troubleshooting skills.
  • Strong communication and interpersonal skills.
  • Must possess excellent time management skills and the drive to work unsupervised.
  • Experience with deploying On-Prem infrastructure.

Desired Skills:

  • Experience in building processes for deploying to a Kubernetes based environment using Gitlab and Helm.
  • Understanding of access management and security groups (i.e. IAM, S3 bucket, SSH, VPN, etc.)
  • Ability to write and use unit and functional testing.
  • Experience using Jira and Confluence.
About Abile Group, Inc.

Abile Group, founded in July 2004 to support the Intelligence Community and its contractors across Enterprise Analytics, IT & Systems Engineering, and Program & Project Management, merged with Valiant Solutions in January 2026 - an established provider of cybersecurity technologies and services for Federal Agencies since 2005. Together, this partnership creates a stronger, more integrated cybersecurity organization with expanded opportunities for employees, deeper technical collaboration, and a unified mission. With significant experience serving the Federal Government, we remain dedicated to our employees and clients and seek highperforming professionals who excel at providing guidance, developing solutions, and delivering implementation support that blends industry best practices with client expertise and Abile's broad technical capabilities.

Hiring Statement

Abile is committed to hiring the most qualified and best fit person for the job - always has, always will. 

Anyone requiring reasonable accommodations should email careers@abilegroup.com with requested details. A member of the HR team will respond to your request within 2 business days. 

Please review our current job openings and apply for the positions you believe may be a fit. If you are not an immediate fit, we will also keep your resume in our database for future opportunities.

Employment Type: OTHER