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
6d
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
API Gateway Engineer
Quantico or Washington
$104k-$166k/yr RemoteFull Time
8+ YOEActive Top Secret clearance, DoD 8570 certification (e.g., CISSP or Security+), extensive API Gateway experience, familiarity with Remedy/Service Now/JIRA, SOAP/REST/XML/JSON, SAFe agile, and gateway administration/operations.
API Gateway, Gateway Migration Utility, SiteMinder, Remedy, Service Now, JIRA, SOAP, RESTful, XML, JSON, Mulesoft, SAFe
2mo
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
API Gateway Engineer
United States or Quantico or Washington
$112k-$179k/yr RemoteFull Time
7+ YOEActive TS clearance, DoD 8570 certification (e.g., CISSP or Security+), deep API Gateway experience, exposure to ITSM tools (Remedy, Service Now, JIRA), familiarity with SOAP/REST/XML/JSON, and SDLC/project management knowledge.
API Gateway, Gateway Migration Utility, SiteMinder, Remedy, Service Now, JIRA Help Desk, Mulesoft, SOAP, RESTful, XML, JSON, SAFe
1mo
Save
Mark Applied
Hide
API Developer/Programmer
Aberdeen Proving Ground, Maryland, United States
$90k-$150k/yr OnsiteFull Time
2+ YOEBachelor's degree in a technical field and 2+ years experience. Experience with web/API development, MongoDB, PostgreSQL, Microsoft Azure, Keycloak, Java, cloud/containerization, information systems security, and Agile.
MongoDB, PostgreSQL, Microsoft Azure, Keycloak, Java
1d
Save
Mark Applied
Hide
Kong / API Gateway Surge Engineer
Washington, District of Columbia, United States
$150k-$170k/yr RemoteFull Time
7+ YOE7+ years engineering experience with Kong or equivalent API gateway, CI/CD/GitOps integration, migration support, observability integration, and documentation for government acceptance.
Kong, GitOps, CI/CD, DevSecOps
1w
Save
Mark Applied
Hide
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
1d
Save
Mark Applied
Hide
KONG/API GATEWAY SURGE ENGINEER
United States or Washington
HybridFull Time
Expertise with Kong Enterprise or comparable API gateways, API gateway implementation and migration, gateway policies, plugin configuration, developer portals, API security; experience with Kubernetes, OpenShift, Docker, GitOps, CI/CD, OAuth/JWT/OpenID Connect; bachelor’s preferred.
Kong Enterprise, Kong, Apigee, IBM API Connect, MuleSoft, Azure API Management, AWS API Gateway, Kubernetes, OpenShift, Docker, GitOps, CI/CD, OAuth, JWT, OpenID Connect
4w
Save
Mark Applied
Hide
Senior Backend API Engineer
Linthicum, Maryland, United States
OnsiteFull Time
7+ YOEActive TS/SCI with polygraph required; 7+ years backend development experience with Python, RESTful APIs, Django/Flask, Docker, MariaDB/MongoDB; experience with Git, Jira, Confluence; strong troubleshooting and communication skills.
Python, Django, Flask, MariaDB, MongoDB, JSON, XML, Docker, Git, Jira, Confluence, AWS
3d
Save
Mark Applied
Hide
API Developer/Data Engineer Managing Consultant-Fraud/AI
McLean or New York City or Arlington or United States
$130k-$216k/yr HybridFull Time
5+ YOEUS citizen able to obtain Public Trust,5+ years in data engineering/integration, proficiency in Python, Java/JS, .NET (C#), RESTful APIs, XML, SQL/SQL Server, GCP, data formats (JSON, Parquet), and experience leading technical teams.
Python, Java, JS, C#, .NET, RESTful API, XML, SQL Server, SQL, CSV, TXT, JSON, Parquet, GCP, Apigee, Kong, Azure API Management, AWS API Gateway, LexisNexis, Oracle Mantas, Actimize, Fircosoft, Oracle Mantas, World-Check, Dow Jones, Chainalysis, Elliptic, TRM Labs
1w
Save
Mark Applied
Hide
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)
3w
Save
Mark Applied
Hide
Senior MuleSoft API Developer
United States or McLean or Columbus
RemoteFull Time
5+ YOEBachelor's in CS or related, 5+ years MuleSoft Anypoint Platform experience, active MuleSoft Developer and DoD 8570 IAT 1 credentials, EMR not required; experience with DataWeave, REST, and SOAP, Agile environment experience.
MuleSoft Anypoint Platform, DataWeave, REST APIs, SOAP
2mo
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
Staff Engineer - API Team
Washington or United States
$160k-$175k/yr RemoteFull Time
Experienced software engineer with API and cloud experience (GCP preferred), strong systems and reliability skills, production shipping and mentorship experience, US work authorization, and willingness to serve on on-call rotation; bachelor's degree expected.
C#, .NET, React.js, PostgreSQL, Google Cloud Platform (GCP), CloudRun, Cloud Functions, Pub/Sub, BigQuery, ClickHouse, GitHub Actions, Docker, Terraform, Firebase
3w
Save
Mark Applied
Hide
Senior Application Developer (DAAS API GW)
Washington or United States
RemoteContract
5+ YOEFive+ years developing applications; experience with APIs, low-code/no-code platforms, BPMN, MuleSoft; BS in related field; 8570 IAT Level I and MuleSoft certification required; active Secret clearance.
Java, HTML, Microsoft .NET, AngularJS, JavaScript, SOAP, REST API, Web Based API, BPMN, Appian, Salesforce, Nintex, MuleSoft Anypoint Platform, Microsoft SQL Server
1mo
Save
Mark Applied
Hide
Senior Software Engineer - API & MCP Platform
Bethesda or Waltham
$140k-$200k/yr HybridFull Time
5+ YOEBachelor's or equivalent experience, 5+ years software development, 3+ years building RESTful APIs/microservices, expertise in Java and NestJS, OAuth 2.0/OpenID/JWT, API design and security, MCP experience.
Java, NestJS, Spring Boot, Spring Security, Maven, Gradle, OAuth 2.0, OpenID Connect, JWT, OpenAPI, Swagger, Model Context Protocol (MCP), AWS, GCP, Azure, Docker, Kubernetes, Kafka, RabbitMQ
4w
Save
Mark Applied
Hide
Application Engineer 4 (API)
Linthicum Heights, Maryland, United States
HybridFull Time
4+ YOETS/SCI with Polygraph required. Python, Docker, Django/Flask, MariaDB or MongoDB, REST and microservices experience. Minimum 4-12 years experience depending on degree.
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, AWS, JSON, XML, Jira, Confluence, Git
2mo
Save
Mark Applied
Hide
Software Engineer 1 (API)
Linthicum Heights, Maryland, United States
$52-$107/hr OnsiteFull Time
7+ YOEU.S. citizenship and Top Secret/SCI clearance with appropriate polygraph required; 7 years SWE experience; Bachelor’s in Computer Science (or 4 additional years of SWE experience); strong Python, Django/Flask, ReST, and database skills.
Python, Django, Flask, MariaDB, MongoDB, PostgreSQL, ReST, JSON, XML, Swagger, AWS, Docker, Visual Studio Code, Jira, Confluence, Git
1w
Save
Mark Applied
Hide
APPLICATION ENGINEER LEVEL 4 (API)
Fort Meade, Maryland, United States
OnsiteFull Time
4+ YOEActive TS/SCI with Polygraph required; strong Python, Docker, Django/Flask, REST/microservices, and MongoDB/MariaDB experience; 4+ years technical experience (varies by degree).
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, JSON, XML, Jira, Confluence, Git, AWS
1d
Save
Mark Applied
Hide
Forward Deployed Engineer (Defense)
Washington, District of Columbia, United States
$130k-$150k/yr FieldFull Time
4+ YOE4+ years solutions/field engineering experience, deploying SaaS/APIs in customer environments, strong API integration and troubleshooting skills, 50%+ travel, eligible for TS/SCI clearance.
Palantir Foundry, Gotham, AIP, APIs
Explore Jobs