PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
2mo
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Software Developer - Big Data (Space Domain)
Herndon or Aurora
$135k-$216k/yr OnsiteFull Time
6+ YOEBachelor’s degree with 8+ years of relevant experience or Master’s with 6+ years; TS/SCI clearance with poly preferred; strong Java and data engineering skills.
Apache NiFi, Java, MongoDB, REST, GraphQL, Kafka, Spark, Hadoop, Docker, Kubernetes, Git, CI/CD, NetCDF, HDF5, CCSDS
2mo
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Data Engineer
Chantilly, Virginia, United States
OnsiteFull Time
2+ YOE2+ years software development; Python/Java; strong SQL; Big Data ingestion/ETL; REST APIs; Airflow; Linux; JDK/J2EE/Spring.
Python, Java, SQL, Apache Airflow, REST, Linux, JDK, J2EE, EJB, JDBC, Spring
1w
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Data Engineer
Chantilly, Virginia, United States
$115k-$190k/yr OnsiteFull Time
4+ YOE4+ years data engineering or software development experience; Python or Java and SQL proficiency; experience across full data lifecycle, ETL, RESTful APIs, Apache Airflow, and Big Data environments; active TS/SCI with poly required.
Python, Java, SQL, JDK, J2EE, EJB, JDBC, Spring, RESTful APIs, Apache Airflow, Linux
3mo
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Senior Software Engineer (Big Data)
Herndon, Virginia, United States
OnsiteFull Time
TS/SCI clearance with polygraph preferred; BS in CS/Engineering or related field; strong full stack development; big data tech (Hadoop, Spark, Kafka); Java/Python/C#; APIs and microservices; strong problem-solving; able to work independently (IC)
Java, Python, C#, Hadoop, Apache Spark, Kafka, APIs, Microservices, REST
2mo
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Software Developer - Big Data (Space Domain)
Herndon, Virginia, United States
$135k-$216k/yr OnsiteFull Time
8+ YOEBachelor’s degree with 8+ years or Master’s with 6+ years of relevant experience; Top Secret clearance with ability to upgrade to TS/SCI; strong Java expertise; experience with data ingestion and big data tools.
Java, Apache NiFi, MongoDB, REST, GraphQL, Kafka, Spark, Hadoop, Docker, Kubernetes, NetCDF, HDF5, CCSDS, Git, CI/CD
1mo
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DS Data Engineer
Chantilly or Chantilly
OnsiteFull Time
2+ YOEHigh School Diploma or GED with 2+ years in software development; strong SQL/DB; Python/Java; Big Data; REST APIs; ETL; Linux.
Python, Java, SQL, JDK, J2EE, EJB, JDBC, Spring, REST APIs, Apache Airflow, ETL, Linux
1w
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Data Engineer
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOE3+ years data engineering experience, strong Python and SQL skills, ETL and data integration experience, familiarity with Palantir and cloud/big-data tools, strong analytic and communication skills.
Python, SQL, Palantir, Apache Spark, Hadoop, AWS, Azure, GCP, Apache Airflow, Prefect
2mo
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Data Engineer, Mid
McLean or Chantilly
$62k-$141k/yr HybridFull Time
SQL, Java, or Python and Spark; highly structured data; data modeling; Bachelor's degree; TS/SCI clearance with polygraph; experience with data pipelines and big data platforms.
SQL, Java, Python, Spark
2mo
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Lead Data Engineer - HR Tech
McLean or Richmond
$197k-$225k/yr OnsiteFull Time
4+ YOELead data engineer with 4+ years in app development, 2+ years in big data, 1+ year cloud experience; strong programming in Java/Scala/Python; Snowflake data warehousing; GenAI/AI tooling experience preferred.
Java, Python, SQL, Scala, Snowflake, AWS, Azure, Google Cloud, Hadoop, Spark, Kafka, Gurobi, MySQL, Unix/Linux, NoSQL, MongoDB, Cassandra
3mo
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Lead Software Engineer (Big Data / Platform Architect)
Sterling, Virginia, United States
OnsiteFull Time
6+ YOE4-8 years backend and frontend, 6-8 years AWS/Linux, 2-4 years AI/ML, strong Python/Java, Agile, SQL/NoSQL, cloud and search tech.
Python, Java, Angular, AWS, Linux, SQL, NoSQL, ElasticSearch, Solr, OpenSearch, ETL, Docker, Podman
1mo
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Software Development Engineer II, Amazon Security Data Engineering
Herndon, Virginia, United States
$144k-$194k/yr OnsiteFull Time
3+ YOE3+ years professional software development and system design experience; expertise in object-oriented design and distributed systems; proficiency in Java/Scala/Python; experience with big-data engines (Iceberg, Spark, Trino, Flink); Bachelor's degree required.
Java, Scala, Python, C#, C++, Perl, Apache Iceberg, Apache Spark, Trino, Flink, AWS Glue, Parquet, AI/ML
2mo
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Software Engineer
Herndon or Potomac
OnsiteFull Time
Full stack developer with backend focus; Solr/Elasticsearch, Lucene, big data tools, Java backend, and security clearance requirements.
Solr, Elasticsearch, Lucene, Hadoop, PySpark, Spark, HBase, Java, AWS, Jira, GitHub
3mo
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Software Engineer (2026-0079)
Chantilly, Virginia, United States
OnsiteFull Time
12+ YOEStrong programming experience, big data tech exposure, cloud DevOps, and TS/SCI with Polygraph.
Python, NodeJS, Elastic Search, Mongo DB, Docker, Kubernetes, Rabbit MQ, Nifi, Ansible, CloudFormation, ELK, Prometheus, Grafana, Maven, Jenkins
1w
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Software Engineer - TS.SCI w/ favorable poly REQUIRED
Herndon, Virginia, United States
OnsiteFull Time
8+ YOEBachelor's in CS/EE or related, 8+ years software development, experience with Java/JavaScript/Python, big data platforms, DevOps, cloud infra, containerization, and monitoring tools.
Java, JavaScript, Python, Elastic Search, Docker, Kubernetes, Apache Kafka, NiFi, Ansible, Cloud Formation, Puppet, ELK, Prometheus, Grafana, REST, Hadoop, Map Reduce, Spark, Maven, Jenkins, Linux, Windows
2mo
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
Solr/ElasticSearch 3+ years; big data tools (Hadoop, PySpark/Spark, HBase) 3+ years; 5+ years backend Java; CS degree or equivalent.
3w
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Software Engineer - Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEActive TS/SCI w/FS polygraph and U.S. citizenship; 5+ years back-end Java; 3+ years Solr/Elastic and big-data tools (Hadoop, Pyspark, Spark, Hbase); CS degree; experience with EMR not required.
Solr, Elastic Search, Hadoop, Pyspark, Spark, Hbase, Java, AWS, JIRA, GITHUB
3w
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Sr. Site Reliability Engineer, Data - FreeWheel
Reston, Virginia, United States
OnsiteFull Time
8+ YOE8+ years SRE/DevOps/Data Ops experience; cloud (AWS/GCP/Azure); big data (Kafka, Hadoop, Spark); DBs (NoSQL, MySQL, PostgreSQL); automation (Ansible, Terraform, Kubernetes, Docker); Python/Go/Java/Scala; monitoring (Prometheus, Grafana, ELK).
AWS, GCP, Azure, Kafka, Hadoop, Spark, Cassandra, HDFS, AWS S3, NoSQL databases, MySQL, PostgreSQL, Ansible, Terraform, Kubernetes, Docker, CI/CD pipelines, Python, Go, Java, Scala, Prometheus, Grafana, ELK Stack, Aerospike, Snowflake
1w
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Full Stack Developer
Chantilly, Virginia, United States
$150k-$250k/yr OnsiteFull Time
3+ YOEActive TS/SCI+Poly clearance, Bachelor's in Computer Science, 3+ years Solr/Elastic and big data experience, 5+ years backend Java experience, experience with Lucene and search tuning.
Solr, Elastic Search, Lucene, Hadoop, Pyspark, Spark, Hbase, Java, AWS, JIRA, GITHUB
3w
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Software Developer
Chantilly, Virginia, United States
OnsiteFull Time
Strong Java development, data analysis/parsing, and SQL skills; experience with full data lifecycle in Big Data, ETL in Linux/Cloud, JDK/J2EE/EJB/JDBC/Spring and RESTful APIs. Hadoop, HBase, MapReduce, and Elasticsearch preferred.
Java, SQL, Linux, Cloud, JDK, J2EE, EJB, JDBC, Spring, RESTful APIs, Hadoop, Hbase, MapReduce, Elasticsearch
2w
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Journeyman Systems Engineer
Kearneysville, West Virginia, United States
$94k-$120k/yr HybridFull Time
6+ YOEDoD 8570 IAT Level II cert and active Secret clearance; 6+ years systems engineering experience on data platforms, big data/ETL, API frameworks, lifecycle management, performance tuning, and enterprise tools like Jira/Azure DevOps/ServiceNow.
Jira, Microsoft Azure DevOps, ServiceNow, Docker, Kubernetes, Python, Bash, Microsoft PowerShell, Linux, Microsoft Windows, AWS, Microsoft Azure, DISA STIGs, GIS
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