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
1w
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Senior API Platform Engineer
Reston, Virginia, United States
OnsiteFull Time
7+ YOEBachelor's or equivalent,7+ years in enterprise API management/platform engineering, experience with API gateways, REST/JSON/XML/OpenAPI, CI/CD, cloud and container deployments, Kubernetes/OpenShift, and federal security clearance eligibility.
Kong, IBM webMethods, Apigee, MuleSoft, Azure API Management, AWS API Gateway, IBM API Connect, WSO2, Tyk, REST, JSON, XML, OpenAPI, Kubernetes, OpenShift, Docker, Azure, AWS, CI/CD, Git, AppDynamics, ELK, Grafana, OpenTelemetry
1mo
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Senior API Systems Engineer
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
10+ YOEU.S. person with Top Secret/SCI polygraph clearance, 10+ years' relevant experience, Bachelor’s or Master’s in a STEM field, Security+ CE (DoDD 8140), 5+ years API gateway experience, proficiency with Java/Python/C#, cloud (AWS/Azure/GCP), Docker/Kubernetes.
Java, Python, C#, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Istio, Linkerd, MuleSoft, Apigee, Broadcom API, ServiceNow, Windows, Linux
2mo
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Java API Developer
Herndon, Virginia, United States
HybridFull Time
3+ YOEBachelor’s degree and 2–5 years of experience with Java, JavaScript, API-based software; TS/SCI with CI Poly clearance required.
Java, Spring Boot, JavaScript, REST APIs, GraphQL, SOAP, Postman, Swagger UI, Apache Kafka, NiFi, SQL, NoSQL, Git, AWS, Azure, GCP, Docker, Kubernetes
1w
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API Gateway Engineer (Kong)
Herndon, Virginia, United States
$170k-$210k/yr RemoteFull Time
Deep Kong (Enterprise/Konnect) experience, API migration and CI/CD integration skills, federal delivery and documentation experience, active IRS Minimum Background Investigation and U.S. citizenship required.
Kong Enterprise, Kong Konnect, GitOps, CI/CD, DevSecOps
1w
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eGRC Senior API Developer
Herndon, Virginia, United States
RemoteFull Time
10+ YOEBachelor's degree, 10+ years relevant experience (≥5 years development/scripting, ≥2 years cybersecurity operations), SOAR development, scripting, GitHub, RMF knowledge, US citizenship and ability to obtain security clearance.
SOAR, RegScale, Axonius, GitHub, Microsoft Visio, Tines, Splunk Phantom, Robotic Process Automation (RPA)
2mo
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Principal Engineer, API & MCP Platform
Reston or Somerville
$220k-$250k/yr HybridFull Time
10+ YOESenior-level principal engineer for API and MCP platform; hybrid role; Reston, VA or Somerville, MA; high ownership and hands-on leadership.
API design, MCP (Model Context Protocol), Semantic APIs, GCP, Vertex AI Context Caching, BigQuery, Snowflake, Apigee
1mo
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SME Systems Engineer- API Gateway & Cloud Architecture
Sterling, Virginia, United States
$180k-$230k/yr OnsiteFull Time
16+ YOEBachelor's in STEM, 16+ years' experience, DoD 8140/Security+ CE, 5+ years API Gateway experience (Broadcom preferred), expertise with Windows and cloud-hosted COTS, Java/Python/C#, AWS/Azure/GCP, Docker, Kubernetes, Agile, cloud architecture, troubleshooting, and system testing. TS/SCI w/ Poly required; U.S. citizenship required.
API Gateway, Broadcom API Gateway, MuleSoft, Apigee, Istio, Linkerd, ServiceNow, Docker, Kubernetes, Java, Python, C#, Windows, AWS, Microsoft Azure, Google Cloud, Message queues, Streaming platforms, ETL, COTS, MBSE
2w
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Principal Systems Engineer (API Gateway) - TS/SCI w CI Poly
Sterling, Virginia, United States
OnsiteFull Time
16+ YOEActive DoD TS/SCI with CI Poly required, Security+ CE per DoD 8140, Bachelor's degree, 16+ years systems engineering experience, API gateway and cloud integration expertise, programming experience in Java/Python/C# and EMR of secure enterprise systems.
REST, GraphQL, AWS, Azure, Java, Python, C#, Broadcom API Gateway, MuleSoft, Apigee, Istio, Linkerd, ServiceNow, Google Cloud Platform (GCP), Oracle Cloud Infrastructure (OCI), IBM Cloud, MBSE, Windows, ETL
1w
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SME Systems Engineer - API (TS/SCI w/ CI Poly required)
Sterling, Virginia, United States
OnsiteFull Time
10+ YOEActive TS/SCI with CI poly, Security+ CE or higher, 10+ years relevant experience, STEM degree, API gateway expertise (5+ years), Java/Python/C# proficiency, cloud and containerization experience.
API gateway, Broadcom API, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Java, Python, C#, MuleSoft, Apigee, Istio, Linkerd, ServiceNow
2mo
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Operational Systems Engineer
Chantilly, Virginia, United States
$113k-$238k/yr OnsiteFull Time
7+ YOEActive TS/SCI with polygraph; 7+ years engineering/development experience; programming and virtual infrastructure experience (Debian, Python, SQL, Linux, ProxMox, Docker, Rancher, Kubernetes); API and cross-domain/CICD experience; A&A support; ability to evaluate emerging technologies including AI.
Debian, Python, SQL, Linux, ProxMox, Docker, Rancher, Kubernetes, SYSTRAN, CI/CD, API, MFA, Cross Domain Solutions, HA-Systems, AI, A&A
2mo
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Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
12+ YOEActive TS/SCI with Polygraph; BS with 12+ years; full stack dev; Java, Spring Boot, Angular, AWS; REST API; Git/Jenkins/Selenium; RH Linux.
Java, Spring Boot, Angular, TypeScript, AWS, Git, Jenkins, Selenium, Rundeck, RH Linux, REST API
1w
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Software Engineer
Fairfax or Austin or Melbourne or Denver
$99k-$207k/yr HybridFull Time
5+ YOEU.S. citizen with bachelor\u0002s degree in STEM and 5+ years software engineering experience; ability to obtain DoD clearance; experience with distributed systems, APIs, CI/CD, and AI-assisted development tools.
Claude Code, AI agents, CI/CD, DevSecOps
1d
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Full Stack Developer (Expert)
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
11+ YOEBachelor's degree in CS/Engineering, 11+ years full-stack experience, front-end (HTML5, JavaScript, TypeScript, CSS), back-end (Java Spring, APIs, microservices), RDBMS/NoSQL, AWS, testing, strong problem-solving and communication.
HTML5, JavaScript, TypeScript, CSS, Java Spring, APIs, microservices, RDBMS, NoSQL, AWS, Ruby on Rails, Infrastructure as Code (IOC)
3w
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Full-Stack Software Developer (Expert)
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
11+ YOEU.S. person with Top Secret/SCI polygraph clearance, Bachelor's degree in CS/Engineering, 11+ years full-stack experience with HTML5, JavaScript, TypeScript, CSS, Java Spring, APIs, RDBMS/NoSQL, AWS and DevOps practices.
HTML5, JavaScript, TypeScript, CSS, Java Spring, APIs, microservices, RDBMS, NoSQL, AWS, testing frameworks, Ruby on Rails, Infrastructure as Code (IOC), SecDevOps, DevOps
1w
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Principal Systems Engineer - Digital Engineering & Advanced Tools
Reston, Virginia, United States
HybridFull Time
10+ YOE10+ years systems engineering experience designing cloud-native, API-driven, data and automation solutions for commercial, government, or defense environments.
AWS, Microsoft Azure, Google Cloud Platform, RESTful APIs, DevSecOps, CI/CD, containerization, orchestration, Model-Based Systems Engineering (MBSE), RPA
1w
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AI/ML Engineer (Systems Engineer, Sr)
Chantilly, Virginia, United States
OnsiteFull Time
1+ YOEU.S. citizen eligible for DoD Secret clearance, 1+ years backend/systems engineering experience, proficiency in Python/C++/Rust, experience with agentic systems, graph data modeling, real‑time pipelines, API design, and secure operations.
Python, C++, Rust, Neo4j, DGraph, ArangoDB, CUDA, REST, GraphQL, gRPC, SOAP, UDP, TCP, Pub/Sub, CI/CD
1w
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Senior AI Architect/Engineer
Arlington or Washington or Pentagon or Springfield or Chantilly or Tysons Corner
$105k-$200k/yr OnsiteFull Time
8+ YOE8+ years in cloud architecture or AI/ML infrastructure, strong Azure experience, knowledge of RAG, embeddings, vector DBs, model APIs, containerized deployments, security and governance for regulated clouds.
Microsoft Azure, Azure GCC High, RAG, embeddings, vector databases, model APIs, containers, APIs
3mo
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Software Engineer - .NET / APIS
Reston, Virginia, United States
OnsiteFull Time
3+ YOE3–5 years backend software engineering; strong C#/.NET; APIs and microservices; relational databases; CI/CD; cloud platforms; GitHub.
C#, .NET, APIs, REST, gRPC, SQL Server, MySQL, GitHub, Azure DevOps, Jenkins, Docker, Kubernetes, Kafka, RabbitMQ, IBM MQ, AWS, Azure, React, JavaScript, TypeScript
2mo
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Cleared Solutions Engineer
Herndon, Virginia, United States
$115k-$125k/yr OnsiteFull Time
3+ YOEActive TS/SCI clearance; US citizen; 3+ years in sales-engineering; 3+ years technical writing; strong SAR/RADAR knowledge; ability to translate requirements into technical solutions.
ArcPro, Socet GXP, Python, APIs, Cloud-native architectures, Pandas, NumPy, Jupyter Notebooks, Tableau, Power BI
3mo
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Systems Engineer (Computing Environment)
Herndon, Virginia, United States
$104k-$166k/yr OnsiteFull Time
8+ YOETS/SCI with poly; 8+ years experience with Bachelor’s (or 6 years with Master’s; 3 with PhD); Linux engineering; virtualization; cloud; security; CI/CD; NoSQL/SQL; REST APIs; Microservices; Docker/Kubernetes; ELK/Big data tools.
Linux, Linux Scripting, Load Balancing, Firewalls, Servers, Switches, CI/CD (GitLab, Jenkins), Docker, Kubernetes, REST APIs, NoSQL, SQL, Java, Spring, Spring Boot, Microservices, Elasticsearch, Splunk, NiFi, Kafka, AWS, Big Data, ETL, AI/ML
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