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Senior Software Developer Jobs in Missouri (NOW HIRING)

Sr. Software Engineer

Hazelwood, MO · On-site

$113K - $149K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Sr. Software Engineer

Hazelwood, MO

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The ...

Senior Software Engineer - Java Developer

MO · On-site

$53.50 - $68.25/hr

Senior Software Engineer (Java Developer) Location: O'fallon, Missouri Duration: 24 months Experiece: 7+ years Skills summary: • Advanced in with Linux and Java development (JDK 1.7 or greater ...

Senior Software Engineer

Saint Louis, MO · On-site +1

$119K - $157K/yr

We are looking for a Senior Software Engineer to produce and implement functional software solutions. You will work with upper management to define software requirements and take the lead on ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive digital economy that ...

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

Senior Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over ... Azure DevOps Pipelines or other CI/CD tools * Microservices or RESTful APIs * Agile experience

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

Senior Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over ... Azure DevOps Pipelines or other CI/CD tools * Microservices or RESTful APIs * Agile experience

Senior Software Engineer

Hazelwood, MO · On-site

$133K - $173K/yr

Senior Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over ... Azure DevOps Pipelines or other CI/CD tools * Microservices or RESTful APIs * Agile experience

Senior Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over ... Azure DevOps Pipelines or other CI/CD tools * Microservices or RESTful APIs * Agile experience

Senior Software Engineer Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over ... Azure DevOps Pipelines or other CI/CD tools * Microservices or RESTful APIs * Agile experience

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Title and Summary Senior Software Engineer Senior Software Engineer About the Role As part of a fast-paced engineering team, you will help design, build, and deliver secure, scalable, and high ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... native and DevOps technologies (e.g., Docker, CI/CD pipelines, PCF or other cloud platforms ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Title and Summary Senior Software Engineer Senior Software Engineer About the Role As part of a fast-paced engineering team, you will help design, build, and deliver secure, scalable, and high ...

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Senior Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Experience as a full stack developer to include Web Services, Database and Front-End Development

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Senior Software Developer information

See Missouri salary details

$14

$57

$82

How much do senior software developer jobs pay per hour?

As of Jul 15, 2026, the average hourly pay for senior software developer in Missouri is $57.90, according to ZipRecruiter salary data. Most workers in this role earn between $49.13 and $64.95 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Software Developer, and why are they important?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

What Is a Senior Software Developer?

Senior software developers have several years of experience in the software industry. They have proven successful in exceeding client expectations when developing programs and have provided excellent support in the managing of those applications. They have worked their way up from junior software developer positions and have mastered a variety of coding languages and programs. Senior software developers train and oversee a team of junior software developers.

What kinds of projects and responsibilities can a Senior Software Developer expect to handle on a daily basis?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What are Senior Software Developers?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What is the difference between Senior Software Developer vs Software Engineer?

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

What are the most commonly searched types of Software Developer jobs in Missouri? The most popular types of Software Developer jobs in Missouri are:
What cities in Missouri are hiring for Senior Software Developer jobs? Cities in Missouri with the most Senior Software Developer job openings:
What are popular job titles related to Senior Software Developer jobs in MO? For Senior Software Developer jobs in MO, the most frequently searched job titles are:
Infographic showing various Senior Software Developer job openings in Missouri as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $120,440 per year, or $57.9 per hour.

Sr. Software Engineer

Biomerieux

Hazelwood, MO • On-site

$113K - $149K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 18 days ago


Job description

Description
As a member of the R&D organization responsible for creating software for the development of innovative in vitro diagnostic solutions, the Senior Software Engineer contributes to the design and delivery of scalable, cloud-native software solutions by implementing modern software development practices, including microservices architecture, CI/CD, and infrastructure as code. The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and infrastructure as code solutions, and develops reliable data pipelines and governance practices. The Senior Software Engineer collaborates with cross-functional teams-including data engineering, product management, and architecture-to translate requirements into well-engineered solutions, uphold governance and security standards, and drive continuous improvement through code reviews, prototyping, and technology evaluation.
Primary Duties
  • Contributes to the design and implementation of multi-tier, distributed, and event-driven systems using cloud-native services and modern design patterns.
  • Implements infrastructure as code (IaC) solutions using AWS CloudFormation, containerized applications (Docker/Kubernetes), and automated deployment workflows.
  • Designs and develops microservices-based applications that leverage AWS/ECS/EKS to ensure scalability, security, and resilience.
  • Designs and develops data pipelines using AWS Lambda, Glue, and other AWS services, following operational standards for availability, performance, and disaster recovery.
  • Designs and develops RESTful APIs and integrates them with internal and external systems.
  • Designs and implements data storage solutions, including data lakes and warehouses that enable analytic and operational workloads.
  • Applies data governance practices-such as data quality, lineage, and security-within the systems and pipelines developed.
  • Implements integration strategies, APIs, and real-time/stream data solutions to ensure reliable and scalable data flows.
  • Contributes to technical design discussions and ensures solutions align with system engineering and architectural guidance.
  • Produces and maintains high-quality system designs, technical documentation, and implementation specifications.
  • Participates in design reviews, code reviews, and pair programming sessions to share knowledge and promote modern development practices.
  • Evaluates new technologies, tools, and frameworks, providing recommendations that support technical excellence and business needs.
  • Works closely with multidisciplinary teams to translate business requirements into technical designs and implementation plans.
  • Collaborates with cross-functional teams to integrate and optimize processes across teams.
  • Participates in proof-of-concept efforts by developing prototypes that validate design assumptions and accelerate solution delivery.
  • Performs other duties as assigned.

  • Qualifications
    Required Education, Training, and Experience
    • Bachelor's degree in Computer Science, Data Engineering, Software Engineering, Biology, Microbiology, Clinical Laboratory Science, Biomedical Engineering, or a related technical or scientific field
    • 7+ years of full stack development experience, including Java and modern web development frameworks such as Angular Suite.
    • Experience with AWS EC2, S3, Lambda Functions, ECS, EKS, RDS.
    • Proven experience with AWS integration/production systems using multiple managed services.
    • Solid grasp of security, compliance, and privacy fundamentals (least privilege, key management, network segmentation).
    • Experience developing and maintaining APIs or serverless patterns.
    • Influence and Code - Terraform (preferred) or AWS CDK/CloudFormation.
    • Implementation strategies for data integration.
    • Strong communication and collaboration skills.
    • Demonstrated architectural design patterns and automated quality gates to improve code health, reduce defects, and accelerate development.
    • Experience with relational databases (PostgreSQL, Oracle, etc.), advanced SQL.

    Preferred Education, Training, and Experience
    • Compliance experience (e.g., HIPAA, SOX, ISO 13485, 21 CFR, or other related SDLC concepts).
    • Experience developing solutions using Python, including scripting, automation, or data processing workflows.
    • Automated unit and integration E2E testing framework (PyUnit, Selenium, etc.).

    Knowledge, Skills, and Abilities
    • Acting with Honor and Being Open - Upholds and reflects bioMérieux's ethical principles and values.
    • Intellectual Honesty/Openness - Applies problem-solving to complex business challenges.
    • Building Relationships - Demonstrates effective verbal and written communication skills.
    • Creating the New...and Different - Influences change and persuades others to adopt new ideas, behaviors, or processes.
    • Understanding the Business - Demonstrates critical thinking, adaptability, time management, communication, problem-solving, and digital literacy.
    • Intermediate proficiency: applies skills independently in most situations; handles moderately complex tasks with occasional guidance.
    • Skilled in MS Office tools including Outlook, Teams, Word, and Excel.

    Working Conditions
    • Ability to remain in a stationary position for prolonged periods.
    • Travel required: 5% (including international travel).
    • Lifting required: No.
    • Other physical requirements: No.
    • Typical office setting with hybrid schedule ( 2 WFH, 3 days in office per week)

    The estimated salary range for this role is between $82,000-$115,000. This role is eligible to receive a variable annual bonus based on company, team, and individual performance per bioMerieux's bonus program. This range may differ from ranges offered for similar positions elsewhere in the country given differences in cost of living. Actual compensation within this range is determined based on the successful candidate's experience and will be presented in writing at the time of the offer.
    In addition, bioMérieux offers a competitive Total Rewards package that may include:
    • A choice of medical (including prescription), dental, and vision plans providing nationwide coverage and telemedicine options
    • Company-Provided Life and Accidental Death Insurance
    • Short and Long-Term Disability Insurance
    • Retirement Plan including a generous non-discretionary employer contribution and employer match.
    • Adoption Assistance
    • Wellness Programs
    • Employee Assistance Program
    • Commuter Benefits
    • Various voluntary benefit offerings
    • Discount programs
    • Parental leaves
    #LI-US