PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
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
1w
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Backend Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
2+ YOE2+ years backend development experience with Node.js/TypeScript, RESTful APIs, relational databases, Git, testing, and secure coding; strong problem-solving and communication skills.
Node.js, TypeScript, PostgreSQL, JavaScript, NestJS, Fastify, Express, MySQL, Git, Docker, Kubernetes, AWS, Azure, Google Cloud, OAuth 2.0, OpenID Connect, JWT, Drizzle ORM, CI/CD
2mo
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Back End Software Engineer
Chantilly, Virginia, United States
$87k-$198k/yr OnsiteFull Time
5+ YOE5+ years in software development (Python), AWS serverless, REST/microservices, SQL/NoSQL, TS/SCI with polygraph, HS diploma or GED.
AWS, Lambda, Docker, Kubernetes, FastAPI, React, Terraform, Terragrunt, Agile, REST APIs, SQL, NoSQL, Python
1mo
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Back End Software Engineer
Chantilly, Virginia, United States
$87k-$198k/yr OnsiteFull Time
5+ YOE5+ years software development with Python; AWS serverless; REST/microservices; SQL/NoSQL; TS/SCI with poly; HS diploma or GED; Agile experience; Docker/Kubernetes; FastAPI; Terraform/Terragrunt; React optional.
Python, AWS, Docker, Kubernetes, FastAPI, Terraform, Terragrunt, REST, SQL, NoSQL, React
3mo
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Backend Developer, Data Platform
Reston, Virginia, United States
$113k-$188k/yr HybridFull Time
5+ YOE5+ years backend software engineering; strong Python; PostgreSQL; Elasticsearch; AWS (S3, RDS); TS/SCI clearance with CI polygraph; Bachelor's in CS/Systems Eng or equivalent; strong debugging and CI/CD skills.
Python, PostgreSQL, Elasticsearch, AWS, S3, RDS, Docker, OpenShift, Helm, Gitlab CI, CI/CD
1mo
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Sr Backend Developer
Herndon, Virginia, United States
RemoteFull Time
7+ YOEBachelor's degree, U.S. citizenship with Public Trust eligibility, 7+ years back-end development (3+ years senior/lead), AWS/Kubernetes experience, CI/CD (Jenkins/GitHub Actions), and tools such as Git, SonarQube, NexusIQ, Selenium, AppDynamics.
AWS, Kubernetes, Jenkins, GitHub Actions, SonarQube, NexusIQ, Selenium, AppDynamics, Git, NIST 800-53, FISMA, FedRAMP, IRS Publication 4812
1mo
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Senior Backend Developer, Data Platform
Reston, Virginia, United States
$137k-$200k/yr HybridFull Time
10+ YOEU.S. citizenship and active TS/SCI with CI polygraph required. 10+ years backend engineering experience, strong Python, PostgreSQL, Elasticsearch, AWS (S3, RDS), CI/CD, distributed systems, and bachelor's degree in CS or related field.
Python, PostgreSQL, Elasticsearch, AWS, S3, RDS, GitLab, GitLab CI, OpenShift, Helm, Docker, CI/CD
3mo
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Backend Java Engineer - Clearance Required
Herndon or Chantilly
OnsiteFull Time
Backend Java experience, Spring or Spring Boot, CI/CD, AWS CodeBuild/Jenkins/GitHub Actions, REST APIs, containerization, and data platform integration.
Java, Spring, Spring Boot, CI/CD, AWS, CodeBuild, Jenkins, GitLab CI, GitHub Actions, REST, HTTP, DevSecOps, Terraform, OpenSearch / Elasticsearch / Solr, Kubernetes, Docker
2mo
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Java Backend Developer Senior
Ashburn, Virginia, United States
OnsiteFull Time
9+ YOEBachelor's in CS or related field; 9+ years Java development; JavaEE, Spring, Spring Boot; AWS, Docker, Kubernetes; Kafka/SQS/Kinesis; NoSQL; REST/GraphQL; CI/CD tools; on-site Ashburn, VA; US citizenship with CBP background.
Java, JavaEE, Spring, Spring Boot, AWS, Docker, Kubernetes, Kafka, SQS, Kinesis, NoSQL, MongoDB, DocumentDB, Cassandra, XML, JSON, Unix/Linux, JPA/Hibernate, REST, GraphQL, Jenkins, Maven, Gitlab, Jira, Dynatrace, Harness
2mo
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Java Backend Developer Senior
Ashburn, Virginia, United States
OnsiteFull Time
9+ YOEBachelor's degree in computer science or related field; 9+ years Java experience; strong Java/JEE, Spring, Spring Boot; experience with Docker/Kubernetes, AWS; SQL/NoSQL, REST/GraphQL; CI/CD tools; Agile familiarity; US citizenship and public trust eligibility.
Java, JavaEE, Spring, Spring Boot, Docker, Kubernetes, AWS, WebLogic, Maven, Artifactory, Jenkins, GitLab, Jira, JPA/Hibernate, SQL, Oracle, NoSQL, Kafka, SQS, Kinesis, XML, JSON, GraphQL, Unix/Linux
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
3w
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Software Engineer
Herndon or McLean or Chantilly
OnsiteFull Time
Proficiency with modern front-end JavaScript frameworks or backend languages, microservices architecture, AWS cloud development, SQL and NoSQL databases, and RESTful API development.
React, Angular, Vue.js, Java, Python, NestJS, NodeJS, TypeScript, React Query, AWS, Lambda, DynamoDB, S3, API Gateway, PostgreSQL, MySQL, MongoDB, RESTful APIs, Camunda, Flowable, n8n.io, JIRA, Confluence, CI/CD
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 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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Software/Machine Learning Engineer
Herndon, Virginia, United States
OnsiteFull Time
3+ YOEBackend software engineer with Python, Docker, Kubernetes, AWS; experience with ML pipelines; US citizenship with ability to obtain TS/SCI clearance.
Python, Docker, Kubernetes, AWS, Git, Linux
5d
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Software Engineer - .NET / SES
Reston, Virginia, United States
OnsiteFull Time
3+ YOE3–5 years backend software experience with C#/.NET, APIs/microservices, relational databases, CI/CD, cloud (AWS/Azure), and strong problem-solving skills.
C#, .NET, REST, gRPC, SQL Server, MySQL, GitHub, Azure DevOps, Jenkins, Docker, Kubernetes, Kafka, RabbitMQ, IBM MQ, AWS, Azure, React, JavaScript, TypeScript
1w
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Sr. Software Engineer-7980
Reston, Virginia, United States
HybridFull Time
5+ YOEBachelor's degree in CS/Engineering,5+ years backend development with Go,3+ years frontend with React/TypeScript/JavaScript/HTML/CSS,experience with MySQL,Redis,AWS,CI/CD (Jenkins,Docker),unit/integration testing (gomock,Playwright),strong communication.
Go, React, TypeScript, JavaScript, HTML, CSS, gomock, Cypress, Playwright, MySQL, Redis, AWS, Jenkins, Docker
1mo
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Software Engineer Lead
Herndon or Columbia
OnsiteFull Time
4-6 years backend and frontend development; 6-8 years AWS/Linux; 2-3 years AI/ML; strong Python/Java; Agile; SQL/NoSQL; cloud and microservices; security clearance with polygraph; Docker/containers.
Python, Java, Angular, AWS, Linux, Docker, Kubernetes, ElasticSearch, Solr/Lucene, OpenSearch, SQL, NoSQL, Jira, Confluence, GitHub, ETL, PyTorch, Keras, TensorFlow, Tableau, Pandas, D3.js, Gensim, spaCy, NLTK, Stanford CoreNLP, OCR, BERT, NER
1mo
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Senior Software Engineer (Remote Sensing)
Arlington or Santa Barbara or Goleta or Reston
$155k-$185k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related; 5+ years backend development (Python preferred); 3+ years building RESTful APIs; experience with aerospace/satellite operations, CI/CD, PostgreSQL, Kubernetes/Docker, AWS, and application security.
Python, RESTful APIs, PostgreSQL, Kubernetes, Docker, AWS, Swagger/OpenAPI, CI/CD
5d
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Software Engineer SME
Herndon, Virginia, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
10+ YOE10+ years building and operating backend services, APIs, and microservices; BS in Computer Science; US citizenship and active TS/SCI with Polygraph; proficiency with Java, Ansible/Python, Postgres/MySQL/MariaDB, Linux, AWS, containers, and Git workflows.
Java, Ansible, Python, Postgres, MySQL, MariaDB, Linux, AWS, Hadoop, Spark, Yarn, Hive, Trino, GitLab, GitHub, Git, SQL
2w
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Senior Software Engineer - Applied AI
Germantown, Maryland, United States
$107k-$155k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent,5+ years software development,strong Python and Linux experience,AI/ML application experience,backend and service integration skills,US citizenship and ability to obtain DOD security clearance.
Python, Rust, TypeScript, Linux, LLMs, Ollama, LangChain, LlamaIndex, FastAPI, Flask, Docker, CI/CD
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