Software Developer

Fantom Corporation is a mission-focused organization supporting critical programs across the defense and intelligence community. We partner with our customers to deliver high-impact technical solutions while fostering a culture built on trust, expertise, and long-term career growth.

We are seeking an experienced Software Developer to design, build, and operate large-scale, cloud-native big data and graph-based systems supporting mission-critical environments. This role focuses on developing high-performance data platforms, APIs, and user-facing applications capable of processing and analyzing trillions of records across structured, semi-structured, and unstructured datasets.

The ideal candidate brings strong Java development expertise, deep experience with big data architectures, graph databases, and NoSQL technologies, and hands-on knowledge of AWS and containerized environments.

Responsibilities

• Design, develop, and maintain scalable applications using Java
• Architect and operate large-scale big data systems, including persistence, partitioning, indexing, and sharding strategies
• Build and maintain RESTful APIs, including troubleshooting and performance optimization
• Design cloud-native architectures leveraging AWS and other enterprise cloud platforms
• Develop and optimize large-scale graph databases handling tens of billions of relationships
• Implement graph traversal solutions using technologies such as Apache TinkerPop, Gremlin, or JanusGraph
• Build and operate NoSQL-based solutions for complex data processing environments
• Design data models optimized for performance, including partitioning, sorting, aggregation workflows, and stream processing
• Develop high-performance serverless and event-driven data processing pipelines using AWS Lambda, Step Functions, and PySpark
• Support geospatial indexing and large-scale data indexing solutions
• Develop modern user interfaces using React and WebGL
• Design and operate graph database platforms such as Apache Cassandra
• Conduct technical analysis of graph systems to improve search and query performance
• Develop and maintain machine learning operations (MLOps) pipelines
• Deploy and manage containerized applications using Kubernetes, Docker, and related orchestration tools
• Implement DevSecOps practices in production environments using Git-based configuration management
• Support Agile software development and testing practices
• Ensure compliance with federal security, governance, and accreditation requirements
• Implement data security controls, including encryption, LDAP-based authentication, and audit logging
• Collaborate with cross-functional teams to define technical approaches and deliver mission-driven solutions

Qualifications

• Strong experience developing enterprise applications using Java
• Experience designing and operating large-scale big data systems
• Experience developing APIs and microservices-based architectures
• Hands-on experience with graph databases and traversal technologies
• Experience working with relational and NoSQL databases such as Postgres, MariaDB, MongoDB, Cassandra, Neo4j, and DynamoDB
• Experience designing data models for high-performance distributed systems
• Experience building data processing pipelines using AWS services such as Lambda and Step Functions
• Experience with Python and related libraries
• Experience working with data formats including CSV, JSON, AVRO, Parquet, and Protocol Buffers
• Experience with Linux environments such as CentOS or Rocky Linux
• Experience with Kubernetes, Docker, and container orchestration technologies
• Experience using Git-based tools and collaborative development environments
• Experience working with structured, semi-structured, and unstructured datasets
• Strong understanding of DevSecOps and Agile development methodologies
• Experience implementing data security and governance controls
• #CJ

Requirements

• Must be fully cleared with a recent polygraph
• Must be willing and able to work fully onsite at the location listed in this posting

Fantom Corp is a Software Development, Agile Cloud, Software Development, Cyber Security (Risk Management, Assessments & Authorization (A&A)), Data, AI Platform (Computer Vision Models), Podcasting Media Services, and IT Services provider. Established in 2015, Fantom Corp serves Federal customers with top-notch Cybersecurity Architects, Data Scientists/Analysts, Software Engineers/Developers, DevSecOps Engineers, Project Managers, Identity, Credential Access Management (ICAM) services , and Cloud-certified practitioners. We excel in delivering emerging technologies such as Artificial Intelligence (AI) and Machine Learning (ML) with a focus on identifying trends, object detection, and classification of structured and unstructured data. Fantom Corp possesses mastery in all aspects of digital audio production. We lead in the ideation and creation of efforts for clients who want to harness the power of podcasting. We guide them in selecting the right show format for their needs and goals. As a Small Business, we possess the innovation, speed and flexibility to meet your requirements.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.