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
3d
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Sr. Backend Engineer (.NET Core)
Washington or Falls Church
RemoteFull Time
6+ YOE6+ years backend development with 4+ years .NET Core/C#, experience leading offshore teams, Azure SQL, Azure Service Bus, Azure API Management, CI/CD with Azure DevOps and Veracode, API and microservices design.
.NET Core, C#, Azure SQL, Azure Service Bus, Azure API Management (APIM), Azure DevOps, Veracode, React, Oracle Fusion Cloud, Claude Code, GitHub Copilot, Cursor
2w
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Back-End Software Developer
Arlington, Virginia, United States
$120k-$160k/yr OnsiteFull Time
U.S. citizen with active Secret clearance; experience with C#/.NET Core or .NET Framework, PL/SQL, API development, RESTful services, Git/Gitlab, and enterprise application delivery in Agile environments.
Microsoft .NET Core, Microsoft .NET Framework, C#, PL/SQL, Git, Gitlab, REST API, JWT, Docker, CI/CD
2w
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Back-End Software Developer
Arlington, Virginia, United States
OnsiteFull Time
U.S. citizen with active Secret clearance; proven API development using C#/.NET Core or .Net Framework; PL/SQL and relational DB experience; REST/JWT, Git/GitLab, Docker, CI/CD; enterprise application development in Agile.
C#, .NET Core, .Net Framework, PL/SQL, SQL, Git, GitLab, REST, JWT, Docker, CI/CD, VB.NET
2d
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Back End Developer
Fort Belvoir, Virginia, United States
$185k-$220k/yr OnsiteFull Time
8+ YOETop Secret/SCI eligibility with CI Polygraph, Bachelor’s in CS or related, 8+ years backend experience, proficiency with server-side languages, databases, APIs, cloud, containers, and classified-environment security.
Python, Java, C#, Ruby, Node.js, PostgreSQL, MySQL, MongoDB, Cassandra, REST, GraphQL, AWS, Azure, GCP, Docker, Kubernetes, Django, Spring, .NET, Kafka, RabbitMQ, Redis, Memcached, Terraform, Ansible, AWS Lambda, Azure Functions
1mo
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Senior Backend Developer/ DevSecOps Engineer
Louisville or Charlotte or Dallas or Tampa or Fort Lauderdale or Washington or Nashville or Miami or Boston or New York City or Chicago or Atlanta
$118k-$162k/yr RemoteFull Time
4+ YOE4+ years in software engineering/DevOps; strong .NET (C#), Microsoft Azure, Terraform, Python, CI/CD (GitHub Actions, Azure DevOps), PostgreSQL, MongoDB, Docker, API design, and security/tooling experience.
.NET (C#), Microsoft Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure Service Bus, Microsoft Azure DevOps (ADO), GitHub Actions, Terraform, Python, MongoDB, PostgreSQL, Databricks, ADLS Gen2, JFrog Artifactory, HashiCorp Vault, LaunchDarkly, Splunk, Docker Desktop, Postman, Checkmarx, AppScan, Cycode, GLAPI
3mo
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.NET Application Developer 3
Suitland, Maryland, United States
OnsiteFull Time
10+ YOETen years of software engineering experience; UI and backend development using Microsoft stack; Federal HR/payroll systems knowledge.
C#.NET, VB.NET, ASP.NET, CSS, JavaScript, JQuery, JSON, Bootstrap, SFTP, SQL Server, SSIS, SSDT, Visual Studio, Team Foundation Server, Microsoft SQL Server Management Studio
1mo
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Software Engineer III - Front End/ Back End
Columbia, Maryland, United States
$110k-$130k/yr RemoteFull Time
8+ YOE8+ years software engineering experience (or equivalent), strong Java and Spring Boot backend skills, RESTful API and microservices experience, relational DB experience, Git and CI/CD familiarity, US citizenship and DHS Public Trust eligibility.
Java, Spring Boot, RESTful APIs, Oracle, PostgreSQL, Microsoft SQL Server, Git, Docker, Kubernetes, EKS, Jenkins, GitHub, SonarQube, Splunk, Kafka, New Relic, Angular, React, C#, .NET, VB.NET, C++, Tomcat, Oracle SQL Developer, AWS
4d
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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
3mo
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Principal Application Engineer
Frederick, Maryland, United States
$145k-$199k/yr RemoteFull Time
10+ YOE10+ years in software design/development; backend services; strong C#/.NET; distributed systems; DevOps; cloud (Azure); agile; leadership potential.
C#, NET, SQL, Entity Framework, HTML, CSS, TypeScript, JavaScript, Jira, Confluence, Git, Docker, Kubernetes, Azure, AWS, GCP
1w
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Software Engineer
Annapolis, Maryland, United States
HybridFull Time
4+ YOE4+ years backend .NET (Framework/.NET Core) experience using C#, strong OOP and design patterns, RESTful services, MS SQL/T-SQL, unit testing, legacy modernization experience, cloud-native SaaS/PaaS familiarity.
.NET Framework, .NET Core, C#, Microsoft SQL Server, T-SQL
3mo
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Full Stack Developer (C#)
Ashburn, Virginia, United States
$104k-$218k/yr HybridFull Time
7+ YOE7+ years backend development in C#/.NET; experience with relational and NoSQL databases; cloud and microservices; hybrid Ashburn, VA; US citizenship with ability to pass CBP background checks.
C#, NET, MongoDB, Kafka, PostgreSQL, Oracle, Docker, Visual Studio
1w
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Software Engineer II
Tysons, Virginia, United States
$88k-$123k/yr HybridFull Time
2+ YOEBachelor's degree or equivalent experience, 2+ years professional software development, strong OOP skills (C# preferred), backend/SQL experience, familiarity with modern JS frameworks and unit testing.
C#, .NET, SQL Server, Kafka, Ember.js, Angular, React, iOS, Android
1mo
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Software Developer (Mid) TS/SCI
Arlington, Virginia, United States
$130k-$145k/yr OnsiteFull Time
5+ YOEActive DoD TS/SCI clearance, 5+ years software development experience, bachelor’s degree (or equivalent experience), AWS certifications, experience with backend languages and frameworks, Agile/SDEL processes, and DevOps/tooling experience.
Java, JavaScript, Go, Python, TypeScript, .NET, Java Development Kit, Spring, Node.js, Gin, AngularJS, React, Next.js, NestJS, Google Web Toolkit, Hibernate, Struts, Git, GitLab, Terraform, Splunk, HashiCorp Vault, JIRA, Jenkins, Ansible, Amazon Web Services GovCloud, PostgreSQL, Amazon RDS, Keycloak, OIDC, SAML, Microsoft Windows Server, Linux
1w
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Senior Full Stack Developer
Tysons Corner or United States
$85k-$117k/yr RemoteFull Time
8+ YOEU.S. citizen with Public Trust eligibility, 8+ years developing backend services and RESTful APIs in Java and/or NodeJS, hands-on Angular experience, cloud (AWS) experience, Git/GitHub and testing frameworks, healthcare EDI knowledge.
Java, NodeJS, Angular, C#, .Net, AWS, API Gateway, Lambda, S3, CloudWatch, Git, GitHub, JUnit, Jest, JIRA, Docker, ECS, EKS, Microsoft Teams, Electronic Data Interchange X.12 (EDI), XML, JSON
3mo
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Full Stack Mission Essential System Developer
McLean or Chantilly
$87k-$198k/yr OnsiteFull Time
5+ YOE5+ years in software development; Java, JavaScript/TypeScript, SQL; Agile methods; backend and frontend experience; TS/SCI with polygraph; HS diploma or GED.
Java, JavaScript, TypeScript, SQL, Python, C#, .NET, Spring, Angular, React, Node.js, Oracle, NiFi
1mo
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Senior Full Stack AI Engineer
Jacksonville or Iselin or Washington
$110k-$190k/yr OnsiteFull Time
7+ YOE7+ years software engineering, expert React, backend framework experience (Node.js, Python, .NET Core), secure public-facing app and cloud architecture experience, hands-on use of AI coding tools and agentic workflows.
React, Node.js, NestJS, Express, Python, FastAPI, Django, Microsoft .NET Core, AWS, Microsoft Azure, GCP, Claude Code, GitHub Copilot, Cursor, Replit, Lovable
2mo
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Full Stack Developer (C#)
Ashburn, Virginia, United States
$104k-$218k/yr HybridFull Time
7+ YOEU.S. citizen able to pass CBP background checks, B.S. in CS or related (or equivalent experience), 7+ years backend development experience, expert C#, .NET/.NET Core, microservices, Kafka, PostgreSQL/Oracle/MongoDB, Git, unit testing, Visual Studio, Docker; hybrid in Ashburn, VA.
C#, .NET Framework, .NET Core, MongoDB, Kafka, PostgreSQL, Oracle, Git, Visual Studio, Docker, NUnit, xUnit, MSTest, AWS, Google Cloud, Dynatrace, AppDynamics, SCOM, Prometheus, Grafana, Terraform, CloudFormation, Kubernetes, Jenkins, Harness, GitLab
1w
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Full Stack Developer - Tech Dev (TS/SCI Required)
Washington or Reston
$165k-$185k/yr OnsiteFull Time
7+ YOE7+ years software development; bachelor’s degree or associate with 10+ years; full‑stack frontend and backend experience; strong SQL and DB skills; Git experience; active TS/SCI clearance and CI polygraph capability.
.NET, .NET Core, C#, Python, JavaScript, TypeScript, HTML, CSS, React, Angular, Vue.js, Node.js, SQL, Oracle, SQL Server, MySQL, Dynamo, Postgres, MongoDB, Gitlab, GitHub, Git, DevSecOps, YAML, Data Bricks, Jupyter Notebook, Atlassian, UI Path
3w
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Staff Software Engineer in Test
Budapest or New York City or Washington or Vancouver or London or Galway or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
5+ YOE5+ years in test engineering, strong TypeScript and Playwright experience, API/backend testing, CI/CD (GitHub Actions), AWS/serverless and DevOps familiarity, LLM/AI testing knowledge, strong communication and mentoring skills.
TypeScript, Playwright, AWS CDK, AWS serverless services, GitHub Actions, .NET, Angular, Docker, LLMs