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Tester Python Developer Jobs in Saint Louis, MO (NOW HIRING)

Leidos

Entry Level Software Developer

Saint Louis, MO · On-site

$57K - $104K/yr

... Python. * 0+ years of experience with modern JavaScript development framework. * 0+ years of experience with unit testing, continuous integration tools, and Gitlab version control. * Proactive self ...

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

... testing, vulnerability management, and emerging AI security risks, including prompt injection ... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines.

Stifel

AI-Application Security Engineer

Saint Louis, MO

$57 - $76.25/hr

... testing, vulnerability management, and emerging AI security risks, including prompt injection ... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines.

Worky

Senior Software Developer

O Fallon, IL · On-site

$110K - $120K/yr

... Testing, Continuous Security and Continuous Monitoring. The DevSecOps Engineer is also responsible ... Maven/Ant, Python * Experience with DevSecOps pipeline * Secret Clearance * Security ...

Stifel

AI-Application Security Engineer

Saint Louis, MO · On-site

$57 - $76.25/hr

... testing, vulnerability management, and emerging AI security risks, including prompt injection ... developer enablement through technologies such as Python, AWS services, and CI/CD pipelines.

GRVTY

DevOps Engineer

Saint Louis, MO · On-site

$51.25 - $70.25/hr

Enforce best practices for security and reliability, like access control and vulnerability testing ... Understanding of Python, Bash, and Shell scripting * Knowledge of network technologies, common ...

Northern Base

PL/SQL Developer

Hazelwood, MO · On-site

$110K - $120K/yr

Python * Familiarity with other RDBMS databases (Teradata, MS SQL Server, MySQL) * Strong ... Requirement gathering, use cases, unit testing * Agile: Sprints, planning, status updates ...

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Tester Python Developer information

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How much do tester python developer jobs pay per hour?

As of Sep 13, 2026, the average hourly pay for tester python developer in Saint Louis, MO is $56.99, according to ZipRecruiter salary data. Most workers in this role earn between $46.97 and $64.76 per hour, depending on experience, location, and employer.
Infographic showing various Tester Python Developer job openings in Saint Louis, MO as of September 2026, with employment types broken down into 33% Internship, and 67% Full Time. Highlights an 100% In-person job distribution, with an average salary of $118,546 per year, or $57 per hour.

Entry Level Software Developer

Saint Louis, MO • On-site

Leidos
IT Services • 10K+ employees
Learn more about Leidosexternal

$57K - $104K/yr

Full-time

Re-posted 5 days ago

Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 154 frontline employees who took The Breakroom Quiz

Job description

The Leidos Maritime ASET team has an opening for a junior (entry level) software developer to work on the design and coding with software solutions for 6 month - temporary to permanent hire position. The ideal candidate has a familiarity with and a baseline understanding of software development concepts, developing coding skills using different tools, and ambition towards future projects in support of the mission.
Primary Responsibilities
  • Applicant must possess competence with Python and JavaScript/TypeScript. Other duties include working with Docker, AWS Cloud, and familiarity with JSON APIs.
  • This role includes creation and documentation of new and existing functionality within software version control repositories (GitLab) and utilizing DevOps principals and tools to deliver new features within an Agile construct.
  • Participate in program Agile software development initiatives (standup, planning, Increment planning) to support innovation and enhancement of custom applications through iteration/functionality testing.
  • Primary responsibilities will involve developing configurations and features for processing Safety of Navigation (SoN) data through an Optical Character Recognition (OCR), Machine Learning (ML) application.
  • This role includes API development and database integration for interaction with React frameworks, using various open-source packages for visualization and data filtering and code modifications that shall apply best practices in unit and build testing.
  • Participate and collaborate with team members to assess tickets to ensure proper testing and delivery of functionality per User Story Acceptance Criteria.

Basic Qualifications
  • Requires bachelors degree and 0+ years of prior relevant experience.
  • 0+ years of experience with Python.
  • 0+ years of experience with modern JavaScript development framework.
  • 0+ years of experience with unit testing, continuous integration tools, and Gitlab version control.
  • Proactive self-starter demonstrates a positive, willing attitude and excellent oral and written communication skills.
  • Experience in either software development projects or software integration projects in a service-oriented environment (Cloud, SOA, Web-Services) or virtualization environment.
  • Organizational Skills: Can plan and prioritize work. Follows tasks to their logical conclusion and makes sure that everything has been done to the right standard. Good attention to detail.
  • Communications: Ability to communicate clearly and efficiently to team members and clients, verbally and in writing. Able to present ideas in a variety of ways depending upon audience and context.
  • US Citizenship required.
  • Ability to obtain and maintain a TS/SCI with Polygraph clearance.

Preferred Qualifications
  • 0+ years of experience with Optical Character Recognition (OCR) and/or Computer Vision (CV) Technologies (AWS Textract, Tesseract, OpenCV).
  • 0+ years of experience with AWS cloud formation templates and/or AWS CDK.
  • Experience with 2D data (HTML Canvas, OpenLayers, Leaflet, GeoJSON, Godot).
  • AWS Solutions or DevOps certification.
  • Team Collaboration tools (Jira, Confluence).
  • Active TS/SCI with Polygraph clearance.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
July 9, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $57,850.00 - $104,575.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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