Top 86 Java developer Jobs in O'fallon Mo

Sr. Software Engineer
bioMérieux —Hazelwood, MO
- $82,000 - $115,000 a year
- Hybrid work
- Computer science
- 7 years
- Microsoft Outlook
- Commuter assistance
- Disability insurance
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Sr. Programmer Analyst
Sovereign Technologies —St. Louis, MO
- Computer Science
- 5 years
- Bachelor of Science
IT Engineer 3, Software
Enterprise Mobility —St. Louis, MO
- Full-time
- Computer Science
- 5 years
- Office
- Profit sharing
- Health insurance
DevOps Engineer
Absolute Business Solutions Corp —St. Louis, MO
- $180,000 - $225,000 a year
- 8 hour shift
- Hybrid work
- Computer science
- Mid-level
- Military encouraged
- Paid time off
- 401(k) matching
Senior Developer, Full Stack - Contract
World Wide Technology Holding, LLC —St. Louis, MO
- $51 - $64 an hour
- Contract
- Computer science
- Azure
- Computer Science
Software Engineer II - Decision Management Program
Mastercard —O'Fallon, MO
- $92,000 - $147,000 a year
- Online Application
- Computer science
- Computer Science
- Mid-level
- Paid jury duty
- Health savings account
1d
Lead Software Engineer
Delan Associates, Inc —O'Fallon, MO
- Contract
- Hybrid work
- Computer Science
- Bachelor of Science
- Java
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Mobile Application Developer
Bridgesoft —Pacific, MO
- Computer science
- Computer Science
- Software troubleshooting
Software Engineer IV – ERP Finance (Oracle/PLSQL)
Spectrum —St. Louis, MO
- Full-time
- Computer Science
- System design
- English
- Opportunities for advancement
Senior Embedded Software Engineer
Leonardo DRS —Bridgeton, MO
- $93,121 - $125,713 a year
- Full-time
- Hybrid work
- Computer Science
- 5 years
- Office
- Paid parental leave
- Health savings account
Senior Software Engineer
TaxPlanIQ —United States
- $100,000 - $140,000 a year
- Email
- Remote
- Background check
- System design
- Java
- Health insurance
- Dental insurance
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Staff Software Engineer - Full Stack
Ark PES —United States
- $150,000 - $205,000 a year
- Full-time
- Remote
- 7 years
- Computer Science
- Research
- Paid holidays
- Health insurance
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Principal Software Engineer - Full Stack
Ark PES —United States
- $130,000 - $180,000 a year
- Full-time
- Remote
- Computer Science
- Research
- Java
- Health insurance
- Dental insurance
Quick Apply
KOFAX Imaging Developer- Atlanta, GA
AHU Technologies Inc —United States
- $55 - $60 an hour
- Full-time
- Remote
- System design
- 8 years
- AWS
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Sr. Software Engineer

bioMérieux -
Hazelwood, MO

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Job Details

$82,000 - $115,000 a year

Benefits

Commuter assistance
Disability insurance
Dental insurance
Adoption assistance
Employee assistance program
Vision insurance
Employee discount
Retirement plan

Qualifications

Systems integration
Software engineering
Amazon ECS
Enterprise software systems development
JavaScript frameworks
SQL
Health information security
Production systems
Cloud security best practices implementation
Bachelor's degree
Web applications
S3
Cloud automation
Key management
RDS database
Data security architecture
Amazon EKS
Cross-functional communication
Web services design
AWS Lambda

Full Job 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

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java developer jobs in o'fallon mo

Sr. Software Engineer

Sr. Programmer Analyst

IT Engineer 3, Software

DevOps Engineer

Senior Developer, Full Stack - Contract

Software Engineer II - Decision Management Program

Lead Software Engineer

Mobile Application Developer

Software Engineer IV – ERP Finance (Oracle/PLSQL)

Senior Embedded Software Engineer

Senior Software Engineer

Staff Software Engineer - Full Stack

Principal Software Engineer - Full Stack

KOFAX Imaging Developer- Atlanta, GA

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