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
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
5d
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Software Engineer (Data Engineer)
Herndon, Virginia, United States
OnsiteFull Time
Active TS/SCI with Full Scope Polygraph required; proven experience designing and maintaining production data pipelines, SQL optimization, API integrations, Python, cloud data platforms, and data modeling.
Apache Airflow, SQL, JSON, XML, Python, AWS, Azure, GCP, Apache Spark, PySpark, DBT (data build tool), Terraform, CloudFormation, Git, Kafka, Kinesis, Great Expectations, Soda, Monte Carlo, Docker, Kubernetes, ServiceNow, Forward Networks, NetIM, SolarWinds
1mo
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Data & Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOE5+ years building production data pipelines with Python and Spark/PySpark; advanced Python (Pandas, NumPy); Docker/Podman; AWS S3, Lambda, Step functions; Airflow, Apache Iceberg; SQL/Trino, NoSQL/DynamoDB; Terraform/CloudFormation; data lineage and geospatial tools.
Apache Spark, PySpark, Python, Pandas, NumPy, Docker, Podman, AWS S3, Lambda, Step functions, Apache Iceberg, Airflow, SQL, Trino, NoSQL, DynamoDB, Unity Catalog OSS, Apache Polaris, Apache Superset, Terraform, CloudFormation, OpenLineage, H3, PostGIS, MySQL, PostgreSQL, Git, Bash, Java, AI/ML
1w
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Lead Software Engineer (Data)-4555
Reston, Virginia, United States
HybridFull Time
7+ YOE7 years developing data products with Go and Python; 5 years writing SQL for Clickhouse; experience with Snowflake, AWS (EKS, EMR, RDS, S3), Airflow, Looker, GitHub, Jenkins, Grafana; Bachelor's in CS/Engineering.
Go, Python, Clickhouse, Snowflake, AWS EKS, AWS EMR, AWS RDS, AWS S3, Airflow, Looker, GitHub, Jenkins, Grafana
2mo
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Software Engineer
Herndon, Virginia, United States
$130k-$265k/yr OnsiteFull Time
4+ YOE4-7+ years in software development across data, application, and UI layers; APIs, cloud, and data tooling experience; TS/SCI clearance.
Java, C#/.NET, SQL, JavaScript, HTML, XML, Python, R, Spark, Apache Iceberg, EMR, NiFi, Kubernetes
1mo
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Software Engineer
Denver or St. Louis or Sterling or Springfield
$99k-$207k/yr OnsiteFull Time
5+ YOEBachelor's degree in CS or related, 5+ years software development, experience with Java and/or Python, web frameworks, relational/NoSQL data, Agile, secure coding, and ability to obtain TS/SCI with Polygraph.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD, DevSecOps, Agile
2w
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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
4d
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Software Developer
Sterling, Virginia, United States
OnsiteFull Time
Master's in Computer Science or related required; expertise in software engineering, AI/ML, data science, deep learning, neural networks, and quality assurance testing; ability to travel to local clients.
3mo
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Data Engineer
Chantilly or Herndon or McLean
OnsiteFull Time
5+ YOEActive TS/SCI with Polygraph; 5+ years in data engineering; BS in CS/Software Eng or related field; strong SQL and cloud data platforms.
SQL, PostgreSQL, MySQL, SQL Server, Apache Spark, Hadoop, Airflow, Informatica, AWS, Azure, GCP, Python, Scala, Java, Snowflake, Redshift, BigQuery, data modeling, star schema, snowflake schema
4d
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Mission Software Engineer
Reston, Virginia, United States
$166k-$220k/yr OnsiteFull Time
4+ YOEWilling to travel up to 50% (Asia Pacific), fluent Mandarin, strong software engineering background, experience with Go/Rust/Python and React/Angular, systems-level and data-processing experience.
Go, Rust, Python, React, Angular
2mo
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Sr Software Engineer II
Sterling, Virginia, United States
HybridFull Time
8+ YOE8+ years software development; experience designing highly available cloud-based systems; backend experience with Java/Scala/Go/C#; SQL/NoSQL data stores; bachelor's in CS/Engineering.
Java, Scala, Go, C#, SQL, NoSQL, cloud services
5d
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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; bachelor’s in CS/Engineering/Mathematics; proficiency in Java/Scala/Python; experience with distributed systems and big data engines (Iceberg, Spark, Trino, Flink).
Java, Scala, Python, Apache Iceberg, Apache Spark, Trino, Flink, AWS Glue, Parquet, C#, C++, Perl
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
5d
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Software Engineer Level 5
Reston, Virginia, United States
OnsiteFull Time
Active TS/SCI with CI Polygraph, backend development, data engineering, API development, Python, FastAPI, PostgreSQL, Elasticsearch, and high-performance integrations.
Python, FastAPI, PostgreSQL, Elasticsearch, SQL
3mo
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Data Engineer
Carlsbad or Germantown or Englewood or Tempe
$136k-$253k/yr OnsiteFull Time
5+ YOE5+ years software development with Java/Scala/Python/C/C++. SQL knowledge. Linux, Docker, Git/CI-CD. Cloud (AWS/GCP/Azure). BS in a related field.
Java, Scala, Python, C/C++, Linux, Docker, Git, CI/CD, PostgreSQL, MySQL
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
2mo
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Sr. Software Engineer (Data Migration & Management)
Chantilly or San Jose or United States
$220k-$265k/yr HybridFull Time
12+ YOE12+ years software development, 5+ years data management/migration, 3+ years cloud-native and SOA experience with a hyper-scaler; proficiency with NFS/SMB/iSCSI, C/C++/Golang/Node.js/Python, Docker, Kubernetes, GitHub, Jenkins, Ansible.
NFS, SMB, iSCSI, C, C++, Golang, Node.js, Python, Docker, Kubernetes, GitHub, Jenkins, Ansible, CI, FAAS, PAAS, Microsoft Azure, AWS, GCP
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
1mo
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Software Engineer II
Reston, Virginia, United States
$90k-$122k/yr HybridFull Time
2+ YOEBachelor's in CS or related, 2+ years software development, expertise in data structures/algorithms and Java, experience with scripting (Perl/Python/Unix Shell) and Linux, strong communication and teamwork skills.
Java, Perl, Python, Unix Shell, Linux
3mo
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Data Engineer
Carlsbad or Germantown or Englewood or Tempe
$141k-$222k/yr OnsiteFull Time
5+ YOE5+ years software development with Java/Scala/Python/C/C++, SQL DBMS, Linux, Docker, Git/CI/CD; cloud familiarity (AWS/GCP/Azure); strong analytical skills; BS in a related field; US citizenship required; travel up to 10%
Java, Scala, Python, C, C++, PostgreSQL, MySQL, Oracle, Linux, Docker, Git, CI/CD, AWS, GCP, Azure, Kafka, Spark
1w
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Software Engineer
Chantilly, Virginia, United States
$130k-$145k/yr OnsiteFull Time
5+ YOE5+ years experience building production data pipelines and ETL workflows; advanced Python and Spark skills; experience with AWS, containerization, PostgreSQL/MySQL, Git, and data governance; active TS/SCI with Full Scope Polygraph required.
Python, Java, Apache Spark, PySpark, Pandas, NumPy, MySQL, PostgreSQL, Git, Bash, Docker, Podman, AWS, S3, Lambda, Step Functions, Airflow, Apache Iceberg, Apache Ranger, Trino, Unity Catalog OSS, Apache Polaris, Apache Superset, Terraform, CloudFormation, Open lineage, H3, PostGIS, DynamoDB