Explore 4 back end java developer jobs from 3 hiring companies in Decatur, AL, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Back End Java Developer Jobs

Secmation

PingWind

Sanmina

Hybrid

Onsite

42Q is an industry-leading, fully-featured cloud-based Manufacturing Execution System. 42Q is looking for a backend developer to create highly reliable solutions for our clients in a range of manufacturing environments. The successful candidate will have an opportunity to collaborate with a team of experienced developers that will welcome your contributions.

This position will allow you to use the full range of your skills, to design and build applications that interface between systems to satisfy customer requirements. The ideal candidate will have a minimum of 7 years of experience in a Linux environment using java or c++, and strong SQL query experience.

Nature of Duties/Responsibilities: 

 
● Create new backend applications based on defined requirements; 
● Suggest improvements to existing systems and help to implement those improvements; 
● Design features and subsystems using methodologies that allow appropriate scaling and are transaction turnaround time; 
● Support other teams by providing APIs, and developing utilities to manage data updates and transfers; 
● This position involves development and support of enterprise-wide applications deployed to an AWS cloud environment, using a range of AWS services. 
● Teamwork is a must in our highly distributed and dynamic environment;

Education and Experience: 
● The candidate must have a Bachelor or MS degree in Computer Science or a related field; 
● Must have a minimum of 7 years of experience in analysis, design, and implementation of enterprise-level systems; 
● Strong knowledge of relational database design, database management and SQL coding are required, as well as experience working with Java or C++ in a Linux environment; 
● Experience with source code version control (SVN/GIT), CI/CD pipeline, prior work with PostgreSQL, and experience with web services is a plus; 
● Experience with a range of AWS services is a plus;

 

US citizenship or US permanent resident status is required for this position;

EEO Employer Veterans/Disabled

Backend Developer

7+ years Linux experience with Java or C++, strong SQL (PostgreSQL), AWS, and CI/CD; degree in Computer Science or related field; experience with SVN/GIT; API development and data transfer utilities.

Secmation LLC

Senior Backend-Focused Full Stack Developer
Location: Huntsville, AL | Raleigh, NC | Remote available (within driving distance of Huntsville, AL) 
Position Type: Full-Time / Hybrid
Clearance: Active DoD Security Clearance preferred; must be eligible to obtain
Secmation is hiring a Senior Backend-Focused Full Stack Developer to support the development of secure software systems for DoD and embedded platforms. This role is focused on hands-on development of backend services and full stack applications that integrate with hardware, embedded systems, and cybersecurity solutions.
This position supports mission-critical programs involving secure communications, autonomous systems, and defense technologies.
What You'll Do
<ul>
<li>Develop backend services and full stack applications supporting secure DoD and embedded system programs.</li>
<li>Build and maintain RESTful APIs and microservices for system-to-system communication in distributed environments.</li>
<li>Implement software that interfaces with embedded systems, hardware components, and secure communication layers.</li>
<li>Write efficient, reliable code in Python, JavaScript, or Java for production systems.</li>
<li>Design and maintain database schemas and queries (MySQL or similar) for performance and data integrity.</li>
<li>Troubleshoot issues across backend services, APIs, and integrated system environments.</li>
<li>Work with cross-functional teams including embedded, RF, and cybersecurity engineers on system integration efforts.</li>
<li>Participate in code reviews and technical design discussions.</li>
<li>Support containerized deployments and CI/CD workflows using tools like Docker and Git.</li>
<li>Follow secure development practices aligned with DoD and cybersecurity requirements.</li>
</ul>
Required Qualifications
<ul>
<li>US. Citizenship required; must be eligible for a DoD Security Clearance. </li>
<li>Bachelor's degree in Computer Science, Computer Engineering, or related field</li>
<li>5–10 years of experience in full stack software development with strong backend focus.</li>
<li>Experience with Python, JavaScript, and/or Java.</li>
<li>Experience with backend frameworks such as Django, Flask, Spring, or Express.</li>
<li>Experience developing RESTful APIs and backend services.</li>
<li>Experience working with relational databases (MySQL or similar).</li>
<li>Experience with Docker or other containerization tools.</li>
<li>Familiarity with Git-based development workflows.</li>
</ul>
Preferred Qualifications
<ul>
<li>Active DoD Security Clearance.</li>
<li>Experience working on defense or government programs.</li>
<li>Experience with embedded systems, IoT, or hardware-integrated software.</li>
<li>Familiarity with cloud platforms (AWS, Azure, or similar).</li>
<li>Experience with microservices architectures and distributed systems.</li>
<li>Experience with secure software development practices.</li>
</ul>
Work Environment
<ul>
<li>Hybrid role based in Huntsville, AL or Raleigh, NC </li>
<li>Remote work available for candidates located within driving distance of Huntsville, AL.</li>
<li>Must be able to travel to the Huntsville office on short notice for customer meetings, program activities, or team collaboration.</li>
<li>Flexible 9/80 work schedule available.</li>
</ul>
Compensation &amp; Benefits
<ul>
<li>Competitive salary based on experience</li>
<li>Company equity</li>
<li>Relocation assistance</li>
<li>9/80 work schedule (every other Friday off)</li>
<li>Health, dental, and vision insurance</li>
<li>Life and disability insurance</li>
<li>401(k) with company contribution</li>
<li>Paid time off</li>
<li>And more!</li>
</ul>
About Secmation
Secmation is not a traditional IT company - we specialize in AI-driven software solutions, embedded cybersecurity, and secure RF systems for the defense industry. Our mission is to deliver next-generation secure technologies for electronic warfare, autonomous systems, and critical defense applications.
Visit <a href="http://www.secmation.com">www.secmation.com</a> to learn more about our work and impact.
Equal Opportunity Employer
Secmation is proud to be an equal opportunity employer. We are committed to building a diverse and inclusive team. All qualified applicants will be considered for employment without regard to age, race, gender, orientation, identity, religion, or veteran status. 
U.S. Citizenship is required for this position due to government clearance requirements.
The salary range for this position represents a general guideline; however, Secmation considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills, work location, current market conditions, and other bona fide data.
&nbsp;

Senior Backend-Focused Full Stack Developer

Backend-Focused Full Stack Developer

Senior backend-focused full stack developer with 5–10 years of experience; proficient in Python, JavaScript, or Java; REST APIs; Django/Flask/Spring/Express; MySQL; Docker; DoD clearance eligible.

Senior backend-focused full stack developer with 5–10 years of experience, strong Python/JavaScript/Java, and DoD-related security clearance eligibility.

Location: Huntsville, AL or Washington, DC Required Clearance: TS/SCI Eligible Required Education: HS/GED Required Experience: Minimum 4 years of experience in data engineering, ML engineering, or analytics platform development
Hybrid: 3 days of onsite/ 2 days remote&nbsp;
Position Description: &nbsp;
This position focuses on AI/ML and data execution within the platform engineering branch, including data ingestion automation, model integration into the Command Center platform, and analytics feature development. The engineer works under the governance of an Exiger Solution Architect, contributing to sprint-based platform releases
&nbsp;Responsibilities:
• &nbsp; &nbsp;Integrate AI/ML models into the Command Center platform via APIs, graph database layers, and automated pipelines • &nbsp; &nbsp;Develop and maintain data ingestion automation for new data sources directed by the Government • &nbsp; &nbsp;Build analytics features and data processing modules per platform architecture standards • &nbsp; &nbsp;Participate in sprint-based development cycles with code review, automated testing, and CI/CD deployment pipeline.
• &nbsp; &nbsp;Support interoperability interface development and documentation • &nbsp; &nbsp;Maintain code quality, test coverage, and deployment documentation per platform standards • &nbsp; &nbsp;Collaborate with the operations branch AI engineer on shared data pipeline components
Minium Qualifications&nbsp;
• &nbsp; &nbsp;Proficiency in Python, SQL, and at least one additional back-end language (Java, Scala, or Go); experience with data pipeline frameworks and relational/cloud data platforms (PostgreSQL, Snowflake, or equivalent) • &nbsp; &nbsp;Experience integrating ML models into production platforms and APIs • &nbsp; &nbsp;Familiarity with cloud-based analytics platforms, REST APIs, graph databases (Neo4j, Amazon Neptune, or equivalent), and data visualization tools • &nbsp; &nbsp;Experience in sprint-based development environments with code review, version control (Git), and DevOps-oriented release processes • &nbsp; &nbsp;Demonstrated DevOps practices: CI/CD pipeline design and maintenance (GitHub Actions, GitLab CI, Jenkins, or equivalent), containerization (Docker/Kubernetes), infrastructure-as-code, and automated testing/deployment workflows
Desired Qualifications
• &nbsp; &nbsp;Bachelor’s Degree • &nbsp; &nbsp;Experience with graph database modeling, entity resolution pipelines, or knowledge graph technologies (Neo4j, Amazon Neptune, TigerGraph, or equivalent) in production environments • &nbsp; &nbsp;Familiarity with government cloud environments (FedRAMP, AWS GovCloud) • &nbsp; &nbsp;Experience with data visualization libraries (D3.js, Plotly) • &nbsp; &nbsp;Experience with infrastructure-as-code tools (Terraform, CloudFormation, or Pulumi) and monitoring/observability platforms
About PingWind
PingWind is focused on delivering outstanding services to the federal government. We have extensive experience in the fields of cybersecurity, development, IT infrastructure, supply chain management and other professional services such as system design and continuous improvement. PingWind is an SBA certified Service-Disabled Veteran-Owned Small Business (SDVOSB) with offices in Northern Virginia and Huntsville AL. <a href="https://www.PingWind.com">www.PingWind.com</a>
Our benefits include:
· &nbsp; &nbsp; &nbsp; Eleven Federal Holidays · &nbsp; &nbsp; &nbsp; Paid Time Off accrued each pay period · &nbsp; &nbsp; &nbsp; Parental Leave · &nbsp; &nbsp; &nbsp; Three medical plan choices with generous employer contribution · &nbsp; &nbsp; &nbsp; Dental and Vision Insurance · &nbsp; &nbsp; &nbsp; Company paid Short-Term and Long-Term Disability · &nbsp; &nbsp; &nbsp; Company paid Life and AD&amp;D Insurance · &nbsp; &nbsp; &nbsp; 401k with competitive matching and vesting schedule&nbsp; · &nbsp; &nbsp; &nbsp; Continuing education assistance · &nbsp; &nbsp; &nbsp; Short Term / Long Term Disability &amp; Life Insurance · &nbsp; &nbsp; &nbsp; Medical, Dependent Care and Commuter Flexible Spending Accounts · &nbsp; &nbsp; &nbsp; Employee Assistance Program&nbsp; · &nbsp; &nbsp; &nbsp; Wellness benefits include Calm Health app and WellHub gym subsidy (formerly GymPass) · &nbsp; &nbsp; &nbsp; 529 College Savings Plan · &nbsp; &nbsp; &nbsp; Legal Insurance&nbsp; · &nbsp; &nbsp; &nbsp; Pet Insurance
Veterans are encouraged to apply
PingWind, Inc. does not discriminate in employment opportunities, terms, and conditions of employment, or practices on the basis of race, age, gender, religious or political beliefs, national origin or heritage, disability, sexual orientation, or any characteristic protected by law
&nbsp; Location: Huntsville, AL or Washington, DC Required Clearance: TS/SCI Eligible Required Education: HS/GED Required Experience: Minimum 4 years of experience in data engineering, ML engineering, or analytics platform development
Hybrid: 3 days of onsite/ 2 days remote&nbsp;
Position Description: &nbsp;
This position focuses on AI/ML and data execution within the platform engineering branch, including data ingestion automation, model integration into the Command Center platform, and analytics feature development. The engineer works under the governance of an Exiger Solution Architect, contributing to sprint-based platform releases
&nbsp;Responsibilities:
&bull; &nbsp; &nbsp;Integrate AI/ML models into the Command Center platform via APIs, graph database layers, and automated pipelines &bull; &nbsp; &nbsp;Develop and maintain data ingestion automation for new data sources directed by the Government &bull; &nbsp; &nbsp;Build analytics features and data processing modules per platform architecture standards &bull; &nbsp; &nbsp;Participate in sprint-based development cycles with code review, automated testing, and CI/CD deployment pipeline.
&bull; &nbsp; &nbsp;Support interoperability interface development and documentation &bull; &nbsp; &nbsp;Maintain code quality, test coverage, and deployment documentation per platform standards &bull; &nbsp; &nbsp;Collaborate with the operations branch AI engineer on shared data pipeline components
Minium Qualifications&nbsp;
&bull; &nbsp; &nbsp;Proficiency in Python, SQL, and at least one additional back-end language (Java, Scala, or Go); experience with data pipeline frameworks and relational/cloud data platforms (PostgreSQL, Snowflake, or equivalent) &bull; &nbsp; &nbsp;Experience integrating ML models into production platforms and APIs &bull; &nbsp; &nbsp;Familiarity with cloud-based analytics platforms, REST APIs, graph databases (Neo4j, Amazon Neptune, or equivalent), and data visualization tools &bull; &nbsp; &nbsp;Experience in sprint-based development environments with code review, version control (Git), and DevOps-oriented release processes &bull; &nbsp; &nbsp;Demonstrated DevOps practices: CI/CD pipeline design and maintenance (GitHub Actions, GitLab CI, Jenkins, or equivalent), containerization (Docker/Kubernetes), infrastructure-as-code, and automated testing/deployment workflows
Desired Qualifications
&bull; &nbsp; &nbsp;Bachelor&rsquo;s Degree &bull; &nbsp; &nbsp;Experience with graph database modeling, entity resolution pipelines, or knowledge graph technologies (Neo4j, Amazon Neptune, TigerGraph, or equivalent) in production environments &bull; &nbsp; &nbsp;Familiarity with government cloud environments (FedRAMP, AWS GovCloud) &bull; &nbsp; &nbsp;Experience with data visualization libraries (D3.js, Plotly) &bull; &nbsp; &nbsp;Experience with infrastructure-as-code tools (Terraform, CloudFormation, or Pulumi) and monitoring/observability platforms
About PingWind
PingWind is focused on delivering outstanding services to the federal government. We have extensive experience in the fields of cybersecurity, development, IT infrastructure, supply chain management and other professional services such as system design and continuous improvement. PingWind is an SBA certified Service-Disabled Veteran-Owned Small Business (SDVOSB) with offices in Northern Virginia and Huntsville AL. <a href="https://www.PingWind.com">www.PingWind.com</a>
Our benefits include:
&middot; &nbsp; &nbsp; &nbsp; Eleven Federal Holidays &middot; &nbsp; &nbsp; &nbsp; Paid Time Off accrued each pay period &middot; &nbsp; &nbsp; &nbsp; Parental Leave &middot; &nbsp; &nbsp; &nbsp; Three medical plan choices with generous employer contribution &middot; &nbsp; &nbsp; &nbsp; Dental and Vision Insurance &middot; &nbsp; &nbsp; &nbsp; Company paid Short-Term and Long-Term Disability &middot; &nbsp; &nbsp; &nbsp; Company paid Life and AD&amp;D Insurance &middot; &nbsp; &nbsp; &nbsp; 401k with competitive matching and vesting schedule&nbsp; &middot; &nbsp; &nbsp; &nbsp; Continuing education assistance &middot; &nbsp; &nbsp; &nbsp; Short Term / Long Term Disability &amp; Life Insurance &middot; &nbsp; &nbsp; &nbsp; Medical, Dependent Care and Commuter Flexible Spending Accounts &middot; &nbsp; &nbsp; &nbsp; Employee Assistance Program&nbsp; &middot; &nbsp; &nbsp; &nbsp; Wellness benefits include Calm Health app and WellHub gym subsidy (formerly GymPass) &middot; &nbsp; &nbsp; &nbsp; 529 College Savings Plan &middot; &nbsp; &nbsp; &nbsp; Legal Insurance&nbsp; &middot; &nbsp; &nbsp; &nbsp; Pet Insurance
Veterans are encouraged to apply
PingWind, Inc. does not discriminate in employment opportunities, terms, and conditions of employment, or practices on the basis of race, age, gender, religious or political beliefs, national origin or heritage, disability, sexual orientation, or any characteristic protected by law
&nbsp; Location: Huntsville, AL or Washington, DC
Required Clearance: TS/SCI Eligible
Required Education: HS/GED
Required Experience: Minimum 4 years of experience in data engineering, ML engineering, or analytics platform development
Hybrid: 3 days of onsite/ 2 days remote 
Position Description:  
This position focuses on AI/ML and data execution within the platform engineering branch, including data ingestion automation, model integration into the Command Center platform, and analytics feature development. The engineer works under the governance of an Exiger Solution Architect, contributing to sprint-based platform releases
 Responsibilities:
•    Integrate AI/ML models into the Command Center platform via APIs, graph database layers, and automated pipelines
•    Develop and maintain data ingestion automation for new data sources directed by the Government
•    Build analytics features and data processing modules per platform architecture standards
•    Participate in sprint-based development cycles with code review, automated testing, and CI/CD deployment pipeline.
•    Support interoperability interface development and documentation
•    Maintain code quality, test coverage, and deployment documentation per platform standards
•    Collaborate with the operations branch AI engineer on shared data pipeline components
Minium Qualifications 
•    Proficiency in Python, SQL, and at least one additional back-end language (Java, Scala, or Go); experience with data pipeline frameworks and relational/cloud data platforms (PostgreSQL, Snowflake, or equivalent)
•    Experience integrating ML models into production platforms and APIs
•    Familiarity with cloud-based analytics platforms, REST APIs, graph databases (Neo4j, Amazon Neptune, or equivalent), and data visualization tools
•    Experience in sprint-based development environments with code review, version control (Git), and DevOps-oriented release processes
•    Demonstrated DevOps practices: CI/CD pipeline design and maintenance (GitHub Actions, GitLab CI, Jenkins, or equivalent), containerization (Docker/Kubernetes), infrastructure-as-code, and automated testing/deployment workflows
Desired Qualifications
•    Bachelor’s Degree
•    Experience with graph database modeling, entity resolution pipelines, or knowledge graph technologies (Neo4j, Amazon Neptune, TigerGraph, or equivalent) in production environments
•    Familiarity with government cloud environments (FedRAMP, AWS GovCloud)
•    Experience with data visualization libraries (D3.js, Plotly)
•    Experience with infrastructure-as-code tools (Terraform, CloudFormation, or Pulumi) and monitoring/observability platforms
About PingWind
PingWind is focused on delivering outstanding services to the federal government. We have extensive experience in the fields of cybersecurity, development, IT infrastructure, supply chain management and other professional services such as system design and continuous improvement. PingWind is an SBA certified Service-Disabled Veteran-Owned Small Business (SDVOSB) with offices in Northern Virginia and Huntsville AL.
www.PingWind.com
Our benefits include:
·       Eleven Federal Holidays
·       Paid Time Off accrued each pay period
·       Parental Leave
·       Three medical plan choices with generous employer contribution
·       Dental and Vision Insurance
·       Company paid Short-Term and Long-Term Disability
·       Company paid Life and AD&D Insurance
·       401k with competitive matching and vesting schedule 
·       Continuing education assistance
·       Short Term / Long Term Disability & Life Insurance
·       Medical, Dependent Care and Commuter Flexible Spending Accounts
·       Employee Assistance Program 
·       Wellness benefits include Calm Health app and WellHub gym subsidy (formerly GymPass)
·       529 College Savings Plan
·       Legal Insurance 
·       Pet Insurance
Veterans are encouraged to apply
PingWind, Inc. does not discriminate in employment opportunities, terms, and conditions of employment, or practices on the basis of race, age, gender, religious or political beliefs, national origin or heritage, disability, sexual orientation, or any characteristic protected by law

AI Solution Engineer-Platform

AI Solution Engineer

Proficient in Python/SQL with back-end language (Java/Scala/Go); experience with data pipelines, ML production, cloud analytics, REST APIs, graph DBs; CI/CD, DevOps, and containerization.

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