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Assistant Software Engineer Jobs in St Louis, MO

Amyx, Inc.

Software Engineering Lead

O Fallon, IL · On-site

... assist software license management; analyze help desk tickets; support ad hoc reporting; research HW/SW solutions; support testing of upgrades; coordinate with orgs to address engineering issues ...

Amyx, Inc.

Software Engineering Lead

O Fallon, IL · On-site +1

Software development support: configure/operate/maintain program support tools; assist software ... engineering issues; support interoperability certification/assessment processes. * Agile ...

Amyx, Inc.

Software Engineering Lead

O Fallon, IL · On-site

Software development support: configure/operate/maintain program support tools; assist software ... engineering issues; support interoperability certification/assessment processes. * Agile ...

MasterCard

Software Engineer I

O Fallon, MO · On-site +1

Title and Summary Software Engineer I Overview The Software Development Engineer is an early-career ... Support cloud-ready microservices and distributed applications. Assist in troubleshooting and ...

MasterCard

Software Engineer II

O Fallon, MO · On-site

$92K - $147K/yr

... Assist with troubleshooting, defect resolution, and application support Collaborate with ... software engineering concepts and the software development lifecycle Experience with one or more ...

Mastercard, Inc.

Software Engineer II

O Fallon, MO · On-site

$92K - $147K/yr

... feedback • Assist with troubleshooting, defect resolution, and application support • ... engineering concepts and the software development lifecycle • Experience with one or more ...

Know Ink, LLC

Software Engineer III

Saint Louis, MO · On-site

Net developer to build software using languages and technologies of the .NET framework. You will ... Able to assist and mentor junior level .NET developers Experience: * 3-6 years experience in .NET ...

ITW Avery Weigh-Tronix

Embedded Software Engineer

MO

$123K - $162K/yr

The engineer will contribute to software architecture, product enhancements, and reliability ... Assist in the development of software user manuals and technical documentation. • Collaborate ...

Maritz Loyalty Marketing

Software Engineer I

Fenton, MO · On-site

The Software Engineer I supports the development of software that serves Maritz technology, working ... Developing triage skills, with the ability to assist in root cause analysis under guidance. * Basic ...

Maritz

Software Engineer I

Fenton, MO · On-site

The Software Engineer I supports the development of software that serves Maritz technology, working ... Developing triage skills, with the ability to assist in root cause analysis under guidance. * Basic ...

Maritz

Software Engineer I

Fenton, MO · On-site

The Software Engineer I supports the development of software that serves Maritz technology, working ... Developing triage skills, with the ability to assist in root cause analysis under guidance. * Basic ...

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Showing results 1-20

All JobsSoftware Engineer JobsAssistant Software Engineer JobsAssistant Software Engineer Jobs in St. Louis, MO

Assistant Software Engineer information

See St Louis, MO salary details

$32.1K

$86.3K

$130.8K

How much do assistant software engineer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for assistant software engineer in St. Louis, MO is $86,289.00, according to ZipRecruiter salary data. Most workers in this role earn between $68,500.00 and $101,600.00 per year, depending on experience, location, and employer.

What is the difference between Assistant Software Engineer vs Software Engineer?

AspectAssistant Software EngineerSoftware Engineer
Required CredentialsBachelor's degree in CS or related field; some internshipsBachelor's or higher; more experience preferred
Work EnvironmentEntry-level, supervised tasks, learning-focusedFull responsibility for projects, independent problem-solving
Employer & Industry UsageCommon in tech companies, startups, IT departmentsStandard role across tech, finance, healthcare, and more

The main difference is experience and responsibility. Assistant Software Engineers are entry-level, focusing on learning and supporting tasks, while Software Engineers handle full project development independently. The roles often overlap in credentials and work environment, but the Software Engineer position involves greater autonomy and technical expertise.

What are the key skills and qualifications needed to thrive as an assistant software engineer?

To thrive as an Assistant Software Engineer, you need a solid understanding of programming languages (such as Java, Python, or C++), software development fundamentals, and typically a bachelor's degree in computer science or a related field. Familiarity with version control systems like Git, basic debugging tools, and common development frameworks is important. Strong problem-solving abilities, collaboration, and effective communication help you work efficiently within teams and adapt to evolving project requirements. These skills and qualities are essential for delivering quality code, learning quickly, and contributing to successful software projects.

What are some common challenges faced by assistant software engineers when joining a new development team?

Assistant Software Engineers often encounter challenges such as adapting to unfamiliar codebases, learning new technologies or frameworks used by the team, and understanding the team's workflow and communication practices. It's common to spend initial weeks focusing on onboarding tasks, shadowing experienced developers, and gradually taking on more complex assignments. Collaboration with senior engineers is key, as they provide guidance and feedback to help you grow technically and integrate smoothly into the team's processes.
What are the most commonly searched types of Software Engineer jobs in St. Louis, MO? The most popular types of Software Engineer jobs in St. Louis, MO are:
What are popular job titles related to Assistant Software Engineer jobs in St. Louis, MO? For Assistant Software Engineer jobs in St. Louis, MO, the most frequently searched job titles are:
What job categories do people searching Assistant Software Engineer jobs in St. Louis, MO look for? The top searched job categories for Assistant Software Engineer jobs in St. Louis, MO are:
What cities near St. Louis, MO are hiring for Assistant Software Engineer jobs? Cities near St. Louis, MO with the most Assistant Software Engineer job openings:
Assistant Software Engineer jobs near you
Infographic showing various Assistant Software Engineer job openings in St. Louis, MO as of August 2026, with employment types broken down into 1% Internship, 86% Full Time, 10% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $86,289 per year, or $41.5 per hour.

Software Engineering Lead

Amyx, Inc.

O Fallon, IL • On-site

Full-time

Re-posted 8 days ago

Job description

Job Summary:
Amyx, Inc. is seeking a Software Engineering Lead to join their Dept. of Defense client at Scott Air Force Base in O'Fallon, IL. The role focuses on supporting software development and Agile delivery activities, coordinating testing activities, and managing Agile processes.
Responsibilities:
• This position requires the ability to support software development and Agile delivery activities.
• Supports Agile ceremonies, backlog management, and documentation.
• Coordinates software development support and testing activities.
• Assists with tool configuration and reporting
• Software development support configure/operate/maintain program support tools; assist software license management; analyze help desk tickets; support ad hoc reporting; research HW/SW solutions; support testing of upgrades; coordinate with orgs to address engineering issues; support interoperability certification/assessment processes.
• Agile development management support agile delivery processes; organize ceremonies and processes; manage backlogs; gather stakeholder feedback; update requirements tools/workflows; support test/validation/verification activities.
• Must have the ability to communicate accurate information
Qualifications:
Required:
• Secret Clearance.
• Ability to support software development and Agile delivery activities.
• Supports Agile ceremonies, backlog management, and documentation.
• Coordinates software development support and testing activities.
• Assists with tool configuration and reporting.
• Software development support configure/operate/maintain program support tools; assist software license management; analyze help desk tickets; support ad hoc reporting; research HW/SW solutions; support testing of upgrades; coordinate with orgs to address engineering issues; support interoperability certification/assessment processes.
• Agile development management support agile delivery processes; organize ceremonies and processes; manage backlogs; gather stakeholder feedback; update requirements tools/workflows; support test/validation/verification activities.
• Must have the ability to communicate accurate information.
Preferred:
• Experience leading multi-team Agile execution (ceremonies, backlog health, stakeholder feedback loops).
• Experience producing 'technical artifacts' (position papers/specifications) consistent with task order expectation.
• One of the following certification SAFe Agilist/SAFe Scrum Master, PMI-ACP.
Company:
At Amyx, Inc., a wholly owned subsidiary of Tetra Tech, our mission is to exceed our customer's expectations on every contract, to provide an environment that encourages, recognizes and rewards the extraordinary contributions of our employees, and to advance and support the communities in which we work and live. Founded in 1999, the company is headquartered in Reston, USA, with a team of 501-1000 employees. The company is currently Late Stage.

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