Top 67 Software modernization engineer Jobs in St. Louis, Mo

Full Stack Software Engineer (AWS) TS-SCI CI Poly
InSequence Inc. —St. Louis, MO
- $170,000 - $190,000 a year
- Full-time
- Computer science
- Computer Science
- System design
- Profit sharing
- Health savings account
Quick Apply
Mid-level Software Engineer
DLS Engineering —St. Louis, MO
- $100,000 - $105,000 a year
- Full-time
- Background check
- Computer science
- Azure
- Disability insurance
- Health insurance
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Mid Software Engineer
Trevity LLC —St. Louis, MO
- Full-time
- Azure
- Mid-level
- Java
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Exploitation Specialist/GDAT Software Engineer
Leidos —St. Louis, MO
- $73,450 - $132,775 a year
- Full-time
- Mid-level
- Office
- Windows
Program Manager
Leidos —Missouri
- $107,900 - $195,050 a year
- Urgently hiring
- Hybrid work
- Office
- Analysis skills
- Supervising experience
- Paid parental leave
- Paid holidays
6d
Implementations Network Engineer IV
Leidos —Scott AFB, IL
- $92,300 - $166,850 a year
- Full-time
- 6 years
- Doctoral degree
- Bachelor of Science
12d
Implementations Network Engineer III
Leidos —Scott AFB, IL
- $73,450 - $132,775 a year
- Full-time
- Bachelor of Science
- Master's degree
- Bachelor's degree
Implementations Network Engineer II
Leidos —Scott AFB, IL
- $59,150 - $106,925 a year
- Full-time
- Bachelor of Science
- Mid-level
- Master's degree
12d
Implementations Network Engineer II
Leidos —Scott AFB, IL
- $59,150 - $106,925 a year
- Full-time
- Bachelor of Science
- Mid-level
- Master's degree
10d
Implementations Network Engineer II
Leidos —Scott AFB, IL
- $59,150 - $106,925 a year
- Full-time
- Bachelor of Science
- Mid-level
- Master's degree
Implementations Network Engineer II
Leidos —Scott AFB, IL
- $59,150 - $106,925 a year
- Full-time
- Bachelor of Science
- Mid-level
- Master's degree
Principal Software Engineer
Trevity LLC —St. Louis, MO
- Full-time
- Azure
- Java
- Master's degree
Quick Apply
Chief Systems Engineer
KBR —St. Louis, MO
- Full-time
- Computer Science
- 11+ years
- In-person
Data Engineer
Absolute Business Solutions Corp —St. Louis, MO
- $150,000 - $175,000 a year
- 8 hour shift
- Hybrid work
- 5 years
- Military encouraged
- Experience equivalent to degree accepted
- Paid time off
- 401(k) matching
Requirements Engineer
Peraton —St. Louis, MO
- $80,000 - $128,000 a year
- 6 years
- Computer Science
- Mid-level
- Health savings account
- Paid holidays
Senior AI Engineer - SFL Scientific
Deloitte —St. Louis, MO
- $128,000 - $252,500 a year
- Full-time
- Computer science
- Azure
- Computer Science
Controls/Manufacturing Engineer
Alpine —St. Louis, MO
- $61,200 - $91,800 a year
- Online Application
- Travel
- Senior level
- Electrical Engineering
Data Engineer Software Developer
Leidos —Scott AFB, IL
- $87,100 - $157,450 a year
- Full-time
- Azure
- Computer Science
- Office
Systems Engineer - Digital Engineering
Peraton —St. Louis, MO
- $112,000 - $179,000 a year
- Computer Science
- Master's degree
- No degree
- Health savings account
- Paid holidays
Senior Level Software Developer
DCS Corp —St. Louis, MO
- Computer science
- Azure
- Computer Science

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software modernization engineer jobs near st. louis, mo

Full Stack Software Engineer (AWS) TS-SCI CI Poly

InSequence Inc.
St. Louis, MO

Quick Apply

Job Details

Full-time | Contract
$170,000 - $190,000 a year

Benefits

Profit sharing
Health savings account
Paid holidays
Health insurance
Dental insurance
Paid time off
401(k) 4% Match
Vision insurance
401(k) matching
Bereavement leave
Life insurance

Qualifications

Government information & network security
Version control
DevSecOps Practices
Test scanning software
Software engineering
Computer Science
Engineering development testing
Infrastructure as Code (IaC)
Enterprise software
IT quality control
Software implementation
DoD experience
Quality assurance experience within IT
Enterprise software systems development
JavaScript frameworks
Terraform
YAML
DoD 8570
Developing automated testing protocols
System deployment
Cloud automation
TS/SCI with Polygraph
Cloud solution engineering
DevOps automation
Application security testing
TypeScript
Python

Full Job Description

InSequence Overview:

At InSequence, we engineer outcomes for your most demanding technology problems. We hire talented professionals to bridge the technology gap between desired business results and actual implementation. Organizations often face a technology gap between getting a software solution and having it meet a desired business goal. InSequence closes that gap with engineered products and managed services that bridge IT expenditure and their organization goals. Our clients range from large government agencies to enterprises that utilize vast amounts of technology and data. They turn to us for our proven solutions and engineering mindset to manage technology that is predictable, scalable, and reliable.

Clearance Requirement

Active TS/SCI Clearance with CI Polygraph Required

Position Overview

We are seeking a Full Stack Software Engineer to support mission-critical applications and cloud infrastructure within the National Geospatial-Intelligence Agency (NGA) environment. The ideal candidate will possess experience developing and deploying cloud-native applications while supporting Infrastructure as Code (IaC), DevSecOps pipelines, and secure software development practices.

This position requires hands-on experience with AWS services, TypeScript/JavaScript, Python, Terraform, and modern DevSecOps deployment practices. Experience supporting NGA, Intelligence Community, or Department of Defense environments is highly desired..

Responsibilities

Design, develop, test, and maintain full stack applications supporting mission requirements.
Develop and enhance front-end and back-end capabilities using TypeScript/JavaScript and Python.
Design and deploy cloud-native solutions leveraging AWS services.
Develop and maintain Infrastructure as Code (IaC) using Terraform and YAML.
Support software deployment activities through Git-based CI/CD pipelines.
Support deployment and sustainment activities within NGA environments, including CORE and DSO deployment processes.
Implement and maintain automated testing solutions, including unit testing and code quality validation.
Identify, analyze, and remediate software vulnerabilities and security findings, including CVEs and CWEs.
Collaborate with software engineers, system engineers, cybersecurity teams, and government stakeholders throughout the software development lifecycle.
Participate in Agile development activities, code reviews, and technical planning sessions.
Create and maintain technical documentation and deployment artifacts.

Required Qualifications

Active TS/SCI clearance with CI Polygraph.
Security+ or equivalent DoD 8570 certification.
Experience developing full stack applications in cloud-based environments.
Experience developing software using: TypeScript / JavaScript & Python
Experience leveraging AWS services such as: EC2, Lambda, API Gateway, S3, & PostgreSQL
Experience implementing Infrastructure as Code (IaC) using Terraform.
Experience developing and maintaining YAML-based configurations.
Experience working with Git-based source control and CI/CD pipelines.
Experience implementing automated unit testing and addressing software quality issues.
Experience identifying and resolving software vulnerabilities and security findings.
Strong understanding of secure software development practices.

Desired Qualifications

Experience supporting NGA, Intelligence Community, or DoD programs.
Experience leveraging NGA Common Operations Release Environment (CORE).
Experience supporting NGA DSO processes and Build Low, Deploy High deployment methodologies.
Experience using Fortify for static code analysis and security remediation.
Experience identifying and remediating:
Common Vulnerabilities and Exposures (CVEs)
Common Weakness Enumerations (CWEs)
Experience supporting DevSecOps environments and secure deployment pipelines.
Experience with Angular development.
Experience with GitLab-based CI/CD pipelines.
Experience supporting cloud-native modernization initiatives.

Education & Experience

Bachelor's degree in Computer Science, Engineering, Information Systems, or a related technical field.
Typically 2–8+ years of experience developing, deploying, and supporting enterprise software solutions.
Additional years of relevant experience may be considered in lieu of some educational requirements.

Benefits & Perks

Company pays 100% of Dental, Vision, and Life Insurance premiums for employees and dependents.
Company pays 85% of Healthcare premiums for employees and dependents.
4% 401(k) Match with immediate 100% vesting.
3 Weeks PTO plus 11 Federal Holidays.
Profit Sharing Program.
Continuous Training & Education Opportunities.

ADA Notations

Regular communication (hearing and speaking).
Noise conditions range from very quiet to very noisy.
Prolonged use of a computer, including typing and keyboarding.

Salary Range

Salary is influenced by a variety of factors including Federal Government contract labor categories and wage rates, relevant experience, technical skills, certifications, education, and overall qualifications.

InSequence Inc. is an Equal Opportunity Employer.

We participate in the E-Verify Employment Verification Program.

Pay: $170,000.00 - $190,000.00 per year

Benefits:

401(k) matching
Bereavement leave
Dental insurance
Health insurance
Health savings account
Life insurance
Paid holidays
Paid time off
Vision insurance

Application Question(s):

Do you have an Active TS-SCI clearance with a CI Poly?
What is your desired salary?

Work Location: In person

Quick Apply

Refine Your Search

software modernization engineer jobs in st. louis, mo

Full Stack Software Engineer (AWS) TS-SCI CI Poly

Mid-level Software Engineer

Mid Software Engineer

Exploitation Specialist/GDAT Software Engineer

Program Manager

Implementations Network Engineer IV

Implementations Network Engineer III

Implementations Network Engineer II

Implementations Network Engineer II

Implementations Network Engineer II

Implementations Network Engineer II

Principal Software Engineer

Chief Systems Engineer

Data Engineer

Requirements Engineer

Senior AI Engineer - SFL Scientific

Controls/Manufacturing Engineer

Data Engineer Software Developer

Systems Engineer - Digital Engineering

Senior Level Software Developer

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