Backend Developer – TS/SCI with Polygraph Required with Security Clearance

Full Time * Virginia About the Team * At Core Interface, we believe great software is built by small teams of thoughtful engineers working on meaningful problems. * Our work supports mission-critical federal programs where the data pipeline – from raw ingest to final display – has to be fast, reliable, and built to last. * We’re looking for a Backend Developer to join our team. Core Interface Benefits * 100% employer-paid medical, dental, and vision (employee + family) * 401(k) with 6% company contribution * 4 weeks PTO plus 11 federal holidays * Paid parental leave * Government shutdown protection * Tuition assistance and technical training * Internet, phone, and fitness reimbursements * Referral bonuses and spot awards * Quarterly team events What You’ll Do in This Role * Design and develop backend services and data processing pipelines using modern configuration management and software engineering practices * Build and maintain APIs and services supporting data ingest, processing, storage, and delivery * Provide ongoing maintenance, support, and enhancements to existing systems and platforms * Troubleshoot complex problems and provide technical support for software and application issues * Recommend and implement improvements to system performance, reliability, and maintainability * Collaborate with other engineers on the team to sustain and advance the organization’s technical capabilities Required Qualifications * Active TS/SCI with Polygraph * U.S. Citizenship * Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field, or an equivalent combination of education, technical training, and work/military experience * 5+ years of professional software development experience * Hands-on experience with modern programming languages such as Java, Python, or JavaScript * Experience building APIs and services using REST and related web technologies * Working knowledge of relational and non-relational databases * Experience with Linux (preferred) or Windows operating systems * Familiarity with Git or other source control tools * Clear communication skills; comfortable working in a small, collaborative team Additional Strengths That Stand Out * Experience with Big Data technologies such as Hadoop, Spark, or MapReduce * Experience with monitoring and observability tools (ELK, Prometheus, Grafana, etc.) * Familiarity with containerization and orchestration (Docker, Kubernetes) * DevOps experience building and deploying infrastructure with tools like Ansible, Jenkins, or CloudFormation * Experience with ElasticSearch, MongoDB, RabbitMQ, or NiFi * Prior experience supporting IC or DoD mission environments Commitment to Inclusion * Core Interface is an Equal Opportunity / Affirmative Action employer committed to building a workplace where everyone can contribute and grow. * All qualified applicants will receive consideration for employment without regard to protected status under applicable law.

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