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Online Java Coding Jobs in Saint Louis, MO (NOW HIRING)

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Role: • Code, document, test components / subsystems to a high standard • Must be solutions ... In the US or Canada, if you require accommodations or assistance to complete the online application ...

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

... in Java development and microservices architecture. This role independently develops scalable ... Participate in code reviews and contribute to engineering quality standards. Support system ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Code, document, test components / subsystems to a high standard Must be solutions oriented ... Experience with Java/J2EE Experience with cryptographic primitives, concepts, and protocols Good ...

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

... code reviews and contribute to engineering quality standards. • Support system performance ... All About You • Solid understanding of Java, J2EE, Spring, Spring Boot, Kafka, RESTful Web ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

This role is hands-on and requires deep expertise in Java and Spring-based platforms, strong ... Drive engineering best practices, including code quality, automated testing, CI/CD, and operational ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

This role is handson and requires deep expertise in Java and Springbased platforms, strong ... Drive engineering best practices, including code quality, automated testing, CI/CD, and operational ...

... secure coding, testing, automation, and operational best practices Review and contribute to ... In the US or Canada, if you require accommodations or assistance to complete the online application ...

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

... and incorporate code reviews to continuously improve code quality • Develop a strong ... In the US or Canada, if you require accommodations or assistance to complete the online application ...

Software Engineer II

O Fallon, MO · On-site +1

$91K - $124K/yr

Proactively request and incorporate code reviews to continuously improve code quality Develop a ... In the US or Canada, if you require accommodations or assistance to complete the online application ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... quality code using different languages. Role: This position is a member of the MasterCard B&MI ... Proficient working with J2EE, Java 8 or higher, JSP, Servlets, Spring 5, Hibernate, and Database ...

... includes Java, Angular, PCF, Spring boot and Oracle Lead by example with hands-on approach that ... Perform code reviews to ensure best practices Foster a blameless postmortems culture to identify ...

Application Development Senior Advisor

Saint Louis, MO · On-site +1

$93K - $128K/yr

... quality code. • Ensure defect free programming consistent with standards. • Provide code ... If you need a reasonable accommodation to complete the online application process, please email ...

Application Development Senior Advisor

Saint Louis, MO · Remote

$93K - $128K/yr

Provide code maintenance and support during testing cycles and post-production deployment and ... Java Development including VXML and client backend integration; Jira or similar tools; Confluence ...

Senior Site Reliability Engineer

O Fallon, MO · On-site

$53.25 - $70.75/hr

Experience with automation for branch management, code promotions, and version management is a plus ... C, C++, Java, Python, Go, Perl or Ruby. • Interest in designing, analyzing and troubleshooting ...

Showing results 21-40

Online Java Coding information

See Saint Louis, MO salary details

$15

$55

$75

How much do online java coding jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for online java coding in Saint Louis, MO is $55.12, according to ZipRecruiter salary data. Most workers in this role earn between $47.69 and $61.68 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an online Java coding instructor, and why are they important?

To thrive as an Online Java Coding Instructor, you need a solid grasp of Java programming, computer science fundamentals, and experience in teaching or mentoring, often supported by a degree in a related field. Familiarity with learning management systems (LMS), code collaboration tools like GitHub, and online communication platforms is typically required. Strong communication, patience, and adaptability help instructors effectively engage and support diverse learners in a virtual environment. These skills ensure that students receive clear guidance, build confidence, and successfully develop their coding abilities remotely.

What is an online Java coding job?

An Online Java Coding job typically involves writing, testing, and maintaining Java code for software applications or websites, all performed remotely over the internet. Professionals in this role may work on developing new features, fixing bugs, or collaborating with teams using online tools. These positions are common in tech companies, startups, or as freelance opportunities, and often require strong Java programming skills and familiarity with frameworks such as Spring or Hibernate. Online Java coders may also participate in code reviews, contribute to documentation, and use version control systems like Git.

What are the typical collaboration methods for an online Java coding instructor working with other educators or curriculum developers?

As an Online Java Coding instructor, you’ll often collaborate with other educators, curriculum developers, and technical support teams to ensure course materials are up-to-date and engaging. This typically involves regular virtual meetings, sharing feedback on student progress, and jointly refining lesson plans or coding assignments. Effective communication and teamwork are essential, as you may also co-host live coding sessions or participate in peer reviews to enhance the learning experience for students. Collaboration tools like Slack, Google Workspace, and learning management systems are commonly used to streamline this process.

Are online Java coding jobs still in demand?

Online Java coding jobs remain in demand due to the continued need for software development, web applications, and enterprise solutions. Skills in Java, along with knowledge of frameworks like Spring and experience with cloud platforms, enhance employability in this field.

What is the difference between Online Java Coding vs Java Developer?

AspectOnline Java CodingJava Developer
Required CredentialsBasic programming knowledge, online coursesBachelor's degree in Computer Science or related field, certifications
Work EnvironmentRemote, freelance or project-basedOffice or remote, full-time or contract
Industry UsageUsed for practice, testing, or small projectsDevelops enterprise applications, software solutions
Search & Comparison IntentLooking for quick coding tasks or practiceSeeking full-time or long-term Java development roles

Online Java Coding typically involves practicing or completing small coding tasks remotely, often without formal credentials. In contrast, a Java Developer is a professional role requiring specific education, certifications, and involvement in comprehensive software projects. While online coding is ideal for skill improvement, Java Developers build and maintain complex applications in professional environments.

What are popular job titles related to Online Java Coding jobs in Saint Louis, MO? For Online Java Coding jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Online Java Coding jobs in Saint Louis, MO look for? The top searched job categories for Online Java Coding jobs in Saint Louis, MO are:
Infographic showing various Online Java Coding job openings in Saint Louis, MO as of August 2026, with employment types broken down into 1% As Needed, 49% Full Time, 47% Part Time, 1% Temporary, and 2% Contract. Highlights an 82% Physical, 1% Hybrid, and 17% Remote job distribution, with an average salary of $114,656 per year, or $55.1 per hour.

Senior Software Engineer

Mastercard, Inc.

O Fallon, MO • On-site

$114K - $151K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 3 days ago


Job description

Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Senior Software Engineer
Overview
Customer Connectivity is a global Mastercard team that designs, builds and supports service platforms that provide cryptographic, key management and certificate management functions utilized by global Mastercard application teams. The Customer Connectivity team develops and supports shared security services to be leveraged across Enterprise by consuming application teams. Our inventory of shared services include cryptography, certificate management, code signing, and key management.
This Senior Software Engineer will be responsible for the component design, development and integration of digital security technologies and solutions to be leveraged by the enterprise. This position includes partnering with project managers for implementation of technical solutions, detailing costs and time estimates for initiatives, mentoring junior team members through all phases of the software development lifecycle, and ensuring compliance of audit requirements proactively.
• Candidates must be able to obtain a deep technical understanding of the applications/systems that they are working on and must be willing to dig in and ask challenging questions to make sure that plans are executed efficiently.
• Candidates should have a strong interest in Corporate Security.
• Candidates must demonstrate strong technical leadership and ability to engage in out-of-the-box problem solving.
• Candidate will be responsible for researching alternative technical solutions for changing business needs.
Role:
• Code, document, test components / subsystems to a high standard
• Must be solutions oriented - ultimately find and implement the 'best fit' solution to address the requirement on time.
• Assist defining processes and choice of development tools to be used across the group
• Interpret technical specifications to produce detailed design
• Design with future extension in mind
• Perform functional and performance testing of solutions
• Ensure code is easily maintainable and tracked in version control system
• Provide task estimates, level of complexity assessment
• Provide input to scheduling of projects
• Ensure tasks get executed on time and to required standards
• Pass on knowledge of various technologies to other team members and to other functions
All about you
• Experience in working with fast-paced, modern architecture using Java, Spring boot, Kafka, C++, JNI or similar technologies.
• BS in Computer Science or related technical field or equivalent practical experience.
• Proficiency in Software Development Best Practices (TDD/BDD, Unit test, Continuous Delivery, ...)
• Very good analytical and problem solving skills.
• Desire to stay abreast of new development technologies and tools.
• Very good inter-personal skills and ability to work in a collaborative environment.
• Strong communication skills, with an ability to express design ideas to a development team.
Nice to have
• Working experience in a continuous integration development environment, preferably Jenkins.
• Experience with Java/J2EE
• Experience with cryptographic primitives, concepts, and protocols
• Good understanding of private or public cloud eco systems.
• Experience in secure software development.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
  • Abide by Mastercard's security policies and practices;
  • Ensure the confidentiality and integrity of the information being accessed;
  • Report any suspected information security violation or breach, and
  • Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.
Pay Ranges
O'Fallon, Missouri: $115,000 - $184,000 USD