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Junior Java Backend Developer Jobs in Missouri (NOW HIRING)

Innova Solutions

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

As a Backend Engineer, you will be responsible for developing and maintaining robust Java applications, collaborating closely with cross-functional teams to define, design, and ship new features.

Auritas

Java Lead Backend Developer

Saint Louis, MO

$49 - $63.75/hr

* Strong Java developer with very good understanding of micro services * Develop and consume APIs using HTTP/Rest. * Skills on at least one major JS library /frame work. * Exposure to relational/non ...

Argyle Infotech

Senior JAVA Engineer

O Fallon, MO · On-site

$53.50 - $68.25/hr

Experience in object-oriented programming and concepts ... Experienced in Java backend application development. * Comfortable enough in handling algorithms ...

AG Technologies

Junior JAVA Devloper

Chesterfield, MO

$300/wk

... engineering, interfacing, integration of hardware and software systems to include an understanding ... Experience in Java development This position requires a TS/SCI clearance with a polygraph.

AG Technologies

Junior JAVA Devloper

Chesterfield, MO

$300/wk

... engineering, interfacing, integration of hardware and software systems to include an understanding ... Experience in Java development This position requires a TS/SCI clearance with a polygraph.

Argyle Infotech

Lead JAVA Engineer

O Fallon, MO · On-site

$65 - $68/hr

Experience in object-oriented programming and concepts ... Experienced in Java backend application development. * Comfortable enough in handling algorithms ...

Zortech Solutions

Java Developer (Backend) - US

O Fallon, MO · On-site

$47.25 - $61.25/hr

Java Developer (Backend) Location: O' Fallon, MO (Onsite from day 1) Duration: 6-12+ Months Interview Process: 3 rounds will be Zoom Video • Strong Java developer with very good understanding of ...

New

DataAnnotation

Backend Developer

Kansas City, MO · On-site +1

$60/hr

We are looking for proficient programmers to help advance AI development. As a member of ... JavaScript, TypeScript, Python, C, C#, C++, React, Go, Java, or Swift. Excellent writing and ...

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$57.2K

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How much do junior java backend developer jobs pay per year?

As of Jun 4, 2026, the average yearly pay for junior java backend developer in Missouri is $100,202.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,800.00 and $99,900.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Junior Java Backend Developer, and why are they important?

To thrive as a Junior Java Backend Developer, you need solid knowledge of Java programming, understanding of object-oriented design, and familiarity with backend frameworks like Spring, often supported by a degree in computer science or related field. Experience with relational databases (e.g., MySQL), version control systems (like Git), and exposure to RESTful APIs and build tools (such as Maven) are typically required. Strong problem-solving skills, attention to detail, and effective communication make someone stand out in this role. These skills and qualities are crucial for building reliable, scalable server-side applications and collaborating effectively within a software development team.

What are some common challenges faced by Junior Java Backend Developers when joining a new team?

As a Junior Java Backend Developer, one common challenge is adapting to existing codebases and understanding the team's preferred coding standards and practices. You may also find it challenging to grasp complex system architectures or integrate your code with various APIs and databases. However, most teams provide onboarding support, code reviews, and mentorship to help you ramp up. Collaborating closely with senior developers and asking questions can significantly ease your transition and foster your growth in the role.

What are Junior Java Backend Developers?

Junior Java Backend Developers are entry-level software engineers who specialize in building and maintaining the server-side logic of web applications using the Java programming language. They work closely with senior developers to implement APIs, manage databases, and ensure smooth data flow between servers and users. Their responsibilities often include writing clean, efficient code, debugging applications, and learning new technologies as needed. Junior Java Backend Developers typically have a foundational knowledge of Java, SQL, and frameworks like Spring Boot.
What are the most commonly searched types of Java Backend Developer jobs in Missouri? The most popular types of Java Backend Developer jobs in Missouri are:
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What cities in Missouri are hiring for Junior Java Backend Developer jobs? Cities in Missouri with the most Junior Java Backend Developer job openings:
Junior Java Backend Developer jobs near you
Infographic showing various Junior Java Backend Developer job openings in Missouri as of May 2026, with employment types broken down into 82% Full Time, 1% Part Time, 1% Temporary, and 16% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $100,202 per year, or $48.2 per hour.

Backend Developer SME

Freedom Technology Solutions Group

Saint Louis, MO • On-site

Full-time

Medical, Life, Retirement, PTO

Posted 29 days ago

Job description

Freedom Technology Solutions Group is seeking a Software Engineer (Backend Developer) to support our client's intelligence analysis products and capabilities. This position involves providing software development capabilities to enhance existing and emerging client capabilities, including design and development, modernization of existing applications and services, and operations and sustainment. The role focuses on driving the client's adaptation of higher levels of automation and operational efficiency through agile development methodologies, rapid prototyping, and modern technology stacks.
The SME Backend Developer provides technical and management leadership for major backend and geospatial technology initiatives. Serves as a domain expert, directs client-facing activities, and has overall responsibility for strategy, execution, and outcomes.
Responsibilities
  • Define enterprise-level backend architecture strategies and modernization roadmaps.
  • Provide technical leadership on geospatial platform development and integration.
  • Oversee development, operations, and sustainment of backend systems across cloud, hybrid, and data center environments.
  • Participate in and enforce DevSecOps standards, CI/CD practices, and engineering governance
  • Interface with senior client leadership, negotiate requirements, and drive technical consensus.
  • Ensure alignment of technology execution with client mission objectives.
  • Serve as a thought leader in backend, cloud, and geospatial communities.

Key Technologies
  • Backend development (Python, Node.js, Java, or similar)
  • AWS services (S3, Lambda, SQS, SNS, ECS, ECR, IAM)
  • Event-driven and serverless architectures
  • API development and integration patterns
  • Containerization (Docker/Podman) and container registries
  • Data pipelines and metrics generation for dashboards and operational visibility
  • CI/CD pipelines (GitLab CI/CD or similar)
  • Large-scale data transfer, processing, and orchestration
  • Logging, monitoring, and distributed system debugging
  • Secure development practices (IAM, ABAC, FGAC, least privilege access)
  • Ability to work in Agile environments and collaborate across technical and mission teams

Required Qualifications
  • Active TS/SCI security clearance (eligible for CI Poly).
  • 14+ years of backend software development experience with demonstrated technical leadership
  • Expertise in modern cloud-native development using languages such as Python, Java, and JavaScript
  • Extensive experience with DevSecOps frameworks, CI/CD pipelines, and Agile/SAFe methodologies
  • Proven experience designing and delivering scalable, distributed backend systems
  • Experience leading large-scale technical efforts, including architecture, staffing, and execution
  • Strong client engagement skills with the ability to influence senior stakeholders
  • Experience using GitLab for source control and CI/CD pipelines
  • Experience developing custom code, scripts, and services for complex data processing and integration

Desired Qualifications
  • Experience working directly with clients to define requirements and develop user stories
  • Experience with geospatial systems, imagery products (e.g., SAR/RADAR), or GEOINT workflows
  • Experience developing or integrating GIS platforms and geospatial data formats
  • Familiarity with geospatial tools and platforms (PostGIS, Oracle Spatial ArcGIS SocketGXP etc.)
  • Experience implementing standards-based APIs (e.g., OGC standards (WFS, STAC, WMS)
  • Experience with data analytics, visualization pipelines, or metrics-driven platforms
  • Experience developing automated processing or detection algorithms
  • Experience with workflow orchestration tools (e.g., Argo Workflows)

What's in It for You?
Flexible work environment
A team mentality - work with friendly, like-minded professionals
Work with innovative, cutting edge technologies
Enjoy extremely competitive compensation and benefits
A work-life balance you can count on
Opportunities to grow and advance your career on our dime
The Benefits You Get with Freedom
Amazing benefits including matching 401k, fully paid medical, and more
Generous paid time off - including paid site closure days
Competitive salary offerings
Paid training and tuition reimbursement
Referral bonuses
Fully paid life and disability
Annual logo wear allowance
Company sponsored events (game nights, holiday party, summer party, happy hours)
Interested in learning more about Freedom and our culture? Contact us today! We're constantly hosting hiring events in our office and elsewhere, to help you get a sense of what life is like at Freedom before joining the team.
As an Equal Opportunity Employer, we do not discriminate on the basis of race, color, religion, sex, age, marital status, disability or veteran status
Applicant Federal & E-Verify Postings
VEVRAA Federal Contractor
Accessibility: If you need an accommodation as part of the employment process, please contact Human Resources at
Phone: 410-290-9035
Email: recruiting@goftsg.com
Equal Opportunity Employer, including disabled and veterans.
If you want to view the EEO Law poster, please choose your language: English - Spanish - Arabic - Chinese
If you want to view the EEO Law Supplement poster, please choose your language: English - Spanish - Chinese
If you want to view the Pay Transparency Policy Statement, please click the link: English

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