179 sr api developer jobs at 98 companies in Easton, MD
1mo
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
1w
Save
Mark Applied
Hide
API Technical Lead
Baltimore, Maryland, United States
OnsiteFull Time
Design and implement FHIR/HL7 APIs and enterprise integration solutions, guide architecture and standards, mentor teams, and ensure scalable, secure interoperability.
FHIR, HL7, HL7v2, X12, JSON, XML, AWS, SOA
3mo
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
2w
Save
Mark Applied
Hide
Sr. User Interface Developer
Annapolis Junction, Maryland, United States
$110k-$130k/yr HybridFull Time
5+ YOEU.S. citizen with active TS/SCI+Poly, 5+ years UI development experience, Angular 20+, TypeScript, HTML/CSS, RESTful API integration, strong UX/Accessibility skills.
Angular 20, Pega Constellation UI, TypeScript, HTML, CSS, RESTful APIs, NX Smart Monorepos
1mo
Save
Mark Applied
Hide
Sr Software Developer
Fort Meade or Columbia
$174k-$220k/yr OnsiteFull Time
Expert in Java, JavaScript, and Python; experienced in AWS serverless (API Gateway, Lambda, Secrets Manager, Parameter Store, Step Functions), DynamoDB/Aurora PostgreSQL, CI/CD (Jenkins, GitHub, CodePipeline), Agile, corporate authentication integration, caching, and multi-source data integration.
Java, JavaScript, Python, AWS, API Gateway, Lambda, Secrets Manager, Parameter Store, Step Functions, DynamoDB, Aurora PostgreSQL, PostgreSQL, Jenkins, GitHub, CodePipeline, Jira, Confluence, Angular, Vue
1mo
Save
Mark Applied
Hide
Sr Aderant Engineer
Reston or San Diego or San Francisco or Washington or Wilmington or Phoenix or Los Angeles or Houston or Boston or Austin or Atlanta or Raleigh or Baltimore or New York or Dallas or Palo Alto or Short Hills or Minneapolis or Chicago or Seattle or Philadelphia or Miami
$113k-$179k/yr HybridFull Time
5+ YOE5+ years supporting Aderant Expert and enterprise financial/practice management systems, strong backend development and SQL skills, experience with integrations/APIs, bachelor's in CS/IT, analytical and troubleshooting ability.
Aderant Expert, SQL, APIs
1w
Save
Mark Applied
Hide
Sr. Full Stack Engineer
Baltimore, Maryland, United States
$135k-$186k/yr RemoteFull Time
8+ YOE8+ years relevant experience (or 6+ with Master’s) building full-stack web apps with SQL and Python, AWS deployment/monitoring, RESTful APIs, CI/CD, and secure coding; must be U.S. eligible for Public Trust.
SQL, Python, AWS, PostgreSQL, Aurora, S3, Secrets Manager, SSM, Jenkins, AWS CloudWatch, Splunk, RESTful APIs
5d
Save
Mark Applied
Hide
CNO Focused Sr. Software Engineer
Annapolis Junction, Maryland, United States
$120k-$247k/yr OnsiteFull Time
12+ YOERequires production-grade Python, 12+ years experience (or BS+8yrs), TS/SCI with polygraph, experience in CNO domain, API integration, git, Jira/Confluence, stakeholder interaction, and presenting analysis.
Python, git, Jira, Confluence, AWS, Docker, Kubernetes, LLMs
1mo
Save
Mark Applied
Hide
Sr. Application Developer - ServiceNow
Laurel, Maryland, United States
$108k-$184k/yr OnsiteFull Time
6+ YOE6+ years ServiceNow development/admin (or 10+ years with HS), experience with JavaScript, Glide API, REST/SOAP integrations, ServiceNow modules and Studio, Service Portal frameworks, strong communication and analytical skills, and on-call availability.
ServiceNow, ServiceNow Studio, ServiceNow Automated Test Framework (ATF), JavaScript, Glide API, Business Rules, UI Policies, Client Scripts, HTML, CSS, XML, REST, SOAP, AngularJS, React, Flow Designer, IntegrationHub, IDE, LDAP, SSO
3w
Save
Mark Applied
Hide
Sr. Software Engineer (TS/SCI)
Hampton or Annapolis Junction or Alexandria or Chantilly or Washington or Reston or McLean or Herndon or Bethesda or Catonsville or Frederick or Ashburn
$144k-$268k/yr HybridFull Time
4+ YOEU.S. citizen with TS/SCI clearance (or immediate DISS eligibility), Bachelor’s degree, 4+ years Python or Java, hybrid cloud/app development, databases, ETL, algorithm design, CI/CD and stakeholder interfacing.
Python, Java, MongoDB, Celery, Azure DevOps, Jenkins, React.js, Node.js, Web API, IBM CPLEX, Gurobi, SPSS, SAS, R, PyCharm, VS Code, Jupyter Notebooks, Pandas, NumPy, Dask, Matplotlib, Seaborn, Plotly, Git, GitHub, GitLab, Docker, Podman
3mo
Save
Mark Applied
Hide
Sr. Database Developer (Oracle, PL/SQL, Web Technologies & Data Migration)
Annapolis Junction, Maryland, United States
OnsiteFull Time
Oracle PL/SQL, REST APIs, web technologies, data migration
Oracle, PL/SQL, REST APIs, HTML, CSS, JavaScript
1mo
Save
Mark Applied
Hide
Software Engineer
Annapolis Junction, Maryland, United States
$96-$108/hr OnsiteFull Time
14+ YOEExperience developing complex software systems using Java and Spring Boot, Linux, web services/APIs, SQL, Git, and container technologies; TS/SCI with polygraph required.
Java, Spring Boot, Linux, API, SQL, Git, Docker, JavaScript, ReactJS, Apache Kafka, Apache NiFi, Docker Compose, Maven, Jira, Confluence, Atlassian
2mo
Save
Mark Applied
Hide
Software Engineer (GC-3)
Annapolis Junction, Maryland, United States
$220k-$250k/yr OnsiteFull Time
15+ YOE12+ Mgmt15+ years of design and development experience; Master's in Computer Science or Computer Engineering; ITIL Certification; Python, CI/CD; AWS and API integration; TS/SCI with Polygraph clearance.
Python, Jenkins, GitLab, CodePipeline, AWS, API, CI/CD
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Fort Meade, Maryland, United States
$170k-$240k/yr OnsiteFull Time
12+ YOEActive Top Secret (TS/SCI) with polygraph, US citizenship, Bachelor's in a technical discipline (or 4 years experience), 12+ years software development, strong Python, LLM and API integration experience, Git and Atlassian familiarity.
Python, LLMs, APIs, Git, Jira, Confluence
2mo
Save
Mark Applied
Hide
Senior Software Developer (Top Secret Cleared)
Washington or Washington
$145k-$155k/yr OnsiteFull Time
8+ YOEActive Top Secret clearance with SCI eligibility required, 8+ years software development, experience with .NET, C#, Java, Python, JavaScript, SQL, APIs, secure coding, Agile, DevSecOps, and production support.
.NET, C#, Java, Python, JavaScript, SQL, APIs
5d
Save
Mark Applied
Hide
Agile Developer 3
Annapolis Junction, Maryland, United States
OnsiteFull Time
9+ YOEActive TS/SCI with Full Scope Poly required; 9 years relevant experience (7 with Master's); experience with microservices, API, Lambda, RDS, Grafana, Prometheus, MongoDB, DocumentDB; ability to support 24x7 on-call.
microservices, API, Lambda, RDS, Grafana, Prometheus, MongoDB, DocumentDB, Java, Spring Boot, Python, AWS, CI/CD
1w
Save
Mark Applied
Hide
Salesforce Developer
United States or Baltimore or Washington
$110k-$130k/yr RemoteFull Time
6+ YOEUS citizen or permanent resident with public trust eligibility, 6+ years software development, 5+ years Salesforce hands-on experience, Apex/Visualforce/Lightning, API and MuleSoft integrations, CI/CD and DevOps experience.
SOAP, REST, MuleSoft, Apex, Visualforce, Lightning Components, Force.com, Service Cloud, Community Cloud, App Cloud, Ajax, JavaScript, Angular JS, Bootstrap, ANT, GitHub, DevOps CI/CD Pipelines, Jenkins, Azure DevOps, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
1mo
Save
Mark Applied
Hide
Sr Full Stack Software Engineer
Chicago or Washington or Baltimore or Louisville or Dallas or Frisco or Kentucky
$107k-$147k/yr RemoteFull Time
4+ YOEBachelor's in CS or equivalent, 4+ years software engineering including Python, 2+ years with Angular/React/Vue or Java/Node.js, cloud and microservices experience, REST API and testing skills.
Java, JavaScript, HTML, PHP, C#, Python, Angular, React, Vue.js, Node.js, Microsoft Azure, AWS, Google Cloud Platform (GCP), Kubernetes, REST APIs, SASS, W3C Web Standards
2mo
Save
Mark Applied
Hide
ServiceNow Developer
Lexington Park, Maryland, United States
$129k-$215k/yr HybridFull Time
5+ YOE5+ years ServiceNow development, CAD/CSA certification, JavaScript/Glide API experience, proficiency across ITSM/ITOM/CMDB/SPM/Flow Designer/IntegrationHub, RMF/FedRAMP experience, ability to obtain Secret clearance.
ServiceNow, SPM, ITSM, ITOM, CMDB, Flow Designer, Integration Hub, IntegrationHub, ServiceNow Studio, JavaScript, Glide APIs, RMF, FedRAMP
2mo
Save
Mark Applied
Hide
Senior Integration Developer
Annapolis Junction or Columbia
$200k-$265k/yr HybridFull Time
12+ YOEActive security clearance with polygraph, 12+ years software development, bachelor’s in CS (or equivalent experience), experience with RESTful APIs, microservices, Pega, Java/JavaScript, AWS, Kubernetes, and leading engineering efforts.
Pega, Kubernetes, React, Java, HTML, CSS, JavaScript, AWS, EKS, S3, Docker, Elasticsearch, Kafka, Jenkins, Artifactory, Git, RESTful APIs, OAuth2, OIDC, SAML, JWT, PKI