1

Senior Java Software Engineer Jobs in Saint Louis, MO

Sr. Software Engineer

Hazelwood, MO · On-site

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and ... experience, including Java and modern web development frameworks such as Angular Suite.

Sr. Software Engineer

Hazelwood, MO · On-site

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and ... experience, including Java and modern web development frameworks such as Angular Suite.

Sr. Software Engineer

Hazelwood, MO

$115K - $152K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and ... experience, including Java and modern web development frameworks such as Angular Suite.

Sr. Software Engineer

Hazelwood, MO · On-site

$113K - $149K/yr

The Senior Software Engineer works within established architectural frameworks, enhances CI/CD and ... experience, including Java and modern web development frameworks such as Angular Suite.

Senior Software Engineer

Saint Louis, MO · On-site

$114K - $151K/yr

... Java/C++/C#. We have a complete CI/CD software lifecycle and an evolving services-oriented ... We require Senior Software Engineers with a strong focus on AI-Native development. Proficiency in ...

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 ... using Java and Spring Boot, focusing on performance, scalability, and reliability Translate ...

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... Java, Spring Boot, and Spring Data JPA • Strong foundation in computer science fundamentals ...

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... Java and Spring Boot, focusing on performance, scalability, and reliability • Translate ...

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... JAVA JDK 11-17, Spring Boot, Spring Security, Maven, Hibernate / JPA, REST, and SQL Server or other ...

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Bachelor's degree or equivalent experience * 5+ years of software engineering experience * 5+ years experience writing, debugging, and troubleshooting code in mainstream Java, SpringBoot, TypeScript ...

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 ... JAVA JDK 11-17, Spring Boot, Spring Security, Maven, Hibernate / JPA, REST, and SQL Server or other ...

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 ... Our high-performance Java platform processes billions of transactions each month, delivering the ...

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... Our high-performance Java platform processes billions of transactions each month, delivering the ...

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 ... Our high-performance Java platform processes billions of transactions each month, delivering the ...

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 ... Our high-performance Java platform processes billions of transactions each month, delivering the ...

$114K - $151K/yr

Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology ... JAVA is a must) and frameworks • High-energy, detail-oriented, proactive, and able to function ...

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 ... JAVA is a must) and frameworks High-energy, detail-oriented, proactive, and able to function ...

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 ... JAVA is a must) and frameworks • High-energy, detail-oriented, proactive, and able to function ...

Showing results 41-60

Senior Java Software Engineer information

See Saint Louis, MO salary details

$39.4K

$146.7K

$257.6K

How much do senior java software engineer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for senior java software engineer in Saint Louis, MO is $146,736.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,500.00 and $159,900.00 per year, depending on experience, location, and employer.

What are some common challenges faced by senior Java software engineers when leading development projects?

Senior Java Software Engineers often encounter challenges such as balancing hands-on coding with leading and mentoring team members, managing tight project deadlines, and ensuring code quality across the team. They are also responsible for making key architectural decisions and integrating new technologies while maintaining system stability. Effective communication and collaboration with cross-functional teams, including QA, DevOps, and product managers, are essential to successfully deliver robust solutions.

What does a senior Java software engineer do?

A Senior Java Software Engineer is responsible for designing, developing, and maintaining complex software applications using the Java programming language. They often lead technical projects, mentor junior developers, and collaborate with cross-functional teams to deliver high-quality software solutions. Their role includes analyzing user requirements, troubleshooting issues, optimizing code for performance, and ensuring best practices in software development. Senior Java engineers are also involved in code reviews and may contribute to architectural decisions within their organization.

What are the key skills and qualifications needed to thrive as a senior Java software engineer?

To thrive as a Senior Java Software Engineer, you need advanced proficiency in Java programming, software design principles, and a solid understanding of computer science fundamentals, often backed by a degree in computer science or a related field. Experience with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git is typically required, along with knowledge of cloud platforms or containerization tools. Strong problem-solving abilities, effective communication, and leadership skills help you mentor team members and collaborate on complex projects. These competencies are crucial for delivering robust, scalable software solutions and leading development teams in dynamic environments.
What are the most commonly searched types of Java Software Engineer jobs in Saint Louis, MO? The most popular types of Java Software Engineer jobs in Saint Louis, MO are:
What are popular job titles related to Senior Java Software Engineer jobs in Saint Louis, MO? For Senior Java Software Engineer jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Senior Java Software Engineer jobs in Saint Louis, MO look for? The top searched job categories for Senior Java Software Engineer jobs in Saint Louis, MO are:
What cities near Saint Louis, MO are hiring for Senior Java Software Engineer jobs? Cities near Saint Louis, MO with the most Senior Java Software Engineer job openings:
Infographic showing various Senior Java Software Engineer job openings in Saint Louis, MO as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $146,030 per year, or $70.2 per hour.

Sr. Software Engineer

bioMerieux

Hazelwood, MO • On-site

$115K - $152K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 2 days ago


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
  1. Contributes to the design and implementation of multi-tier, distributed, and event-driven systems using cloud-native services and modern design patterns.

  2. Implements infrastructure as code (IaC) solutions using AWS CloudFormation, containerized applications (Docker/Kubernetes), and automated deployment workflows.

  3. Designs and develops microservices-based applications that leverage AWS/ECS/EKS to ensure scalability, security, and resilience.

  4. Designs and develops data pipelines using AWS Lambda, Glue, and other AWS services, following operational standards for availability, performance, and disaster recovery.

  5. Designs and develops RESTful APIs and integrates them with internal and external systems.

  6. Designs and implements data storage solutions, including data lakes and warehouses that enable analytic and operational workloads.

  7. Applies data governance practices-such as data quality, lineage, and security-within the systems and pipelines developed.

  8. Implements integration strategies, APIs, and real-time/stream data solutions to ensure reliable and scalable data flows.

  9. Contributes to technical design discussions and ensures solutions align with system engineering and architectural guidance.

  10. Produces and maintains high-quality system designs, technical documentation, and implementation specifications.

  11. Participates in design reviews, code reviews, and pair programming sessions to share knowledge and promote modern development practices.

  12. Evaluates new technologies, tools, and frameworks, providing recommendations that support technical excellence and business needs.

  13. Works closely with multidisciplinary teams to translate business requirements into technical designs and implementation plans.

  14. Collaborates with cross-functional teams to integrate and optimize processes across teams.

  15. Participates in proof-of-concept efforts by developing prototypes that validate design assumptions and accelerate solution delivery.

  16. 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 bioMerieux'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, bioMerieux 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-JR1