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
2w
Save
Mark Applied
Hide
Software Engineer II-Python/PySpark
Wilmington, Delaware, United States
OnsiteFull Time
2+ YOE2+ years applied software engineering experience; hands-on PySpark and Python; experience with ETL, Airflow, Iceberg, Snowflake/Databricks, AWS; SDLC, automation and CI/CD proficiency; strong communication and problem solving.
PySpark, Python, Iceberg, AI, AWS, Data Pipeline, Airflow, Snowflake, Databricks, SQL, Java
1w
Save
Mark Applied
Hide
Python API Developer
Malvern, Pennsylvania, United States
$110k-$120k/yr OnsiteFull Time
10+ YOEDesign and maintain REST APIs with Python and AWS Lambda; integrate with Amazon Aurora and DynamoDB; manage DB migrations with Liquibase; 10+ years experience and Bachelors in Computer Science required.
Python, Lambda, Aurora, DynamoDB, Liquidbase, CI/CD
2mo
Save
Mark Applied
Hide
Senior Software Engineer - Python - 1099
Conshohocken, Pennsylvania, United States
RemoteTemporary
10+ YOE10+ years full stack experience; Python; remote US-based role; must pass background check; U.S. citizen.
Python
1mo
Save
Mark Applied
Hide
Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
10+ YOEBSc and 10+ years software development experience, U.S. citizenship with active Secret clearance, proficiency with Java/Python/C#/JavaScript, Linux/Windows experience, testing and documentation skills, DoD experience preferred.
Java, Python, C#, JavaScript, Linux, Windows
1w
Save
Mark Applied
Hide
Software Engineer
Conshohocken, Pennsylvania, United States
$87k-$123k/yr HybridFull Time
3+ YOEBachelor's degree or equivalent,3+ years software development experience,proficiency in Java, Python, Swift or JavaScript,strong problem-solving and communication skills,US work authorization required.
Java, Python, Swift, JavaScript
2mo
Save
Mark Applied
Hide
Software Engineer
Conshohocken, Pennsylvania, United States
HybridFull Time
2+ YOE2+ years software development experience; C#, Typescript, Python; Azure; CI/CD; GitHub; JIRA; Agile; HTML/CSS; JavaScript; UI/UX; insurance domain experience preferred.
C#, Typescript, Python, HTML, CSS, JavaScript, Azure, GitHub, JIRA, CI/CD, Microsoft stack, UI/UX
2mo
Save
Mark Applied
Hide
Lead Software Engineer II – Java & Python
Wilmington, Delaware, United States
$100k-$135k/yr RemoteMultiple Commitments Available
4+ YOE4-6 years professional software engineering; strong backend Java and Python; SQL/data modeling; AWS; DynamoDB, RDS, PostgreSQL; CI/CD; Docker; ECS/EKS; CloudWatch/Datadog; excellent communication and collaboration.
AWS, Docker, Kubernetes, ECS, EKS, CloudWatch, Datadog, DynamoDB, RDS, PostgreSQL, DocumentDB, CI/CD
3mo
Save
Mark Applied
Hide
Senior Software Developer
Conshohocken or Portland or Bucharest or Ia\u00021si or Barcelona or Tokyo or United States
OnsiteFull Time
6+ YOE6+ years software development experience, deep Python, relational databases and AWS experience, EMR not stated, Django and Angular preferred, bachelor's or equivalent experience, production-support mindset.
Python, Django, Angular, AWS, Claude Code
1mo
Save
Mark Applied
Hide
Software Engineer
Aberdeen Proving Ground, Maryland, United States
$76k-$156k/yr HybridFull Time
3+ YOEU.S. citizen with TS/SCI clearance (CI Poly preferred), Bachelor’s in CS/SE/EE, 3+ years software development, strong C++ and Python experience, Linux and UI framework experience, API/CI-CD knowledge, and ability to work with RF/SIGINT data.
C++, Python, Linux, React, Angular, Vue, Git, CI/CD pipelines, Docker, Ansible, Cobbler, HTML, CSS, TypeScript, REST APIs, PostgreSQL, PostGIS, SQLite
1w
Save
Mark Applied
Hide
Associate Software Developer
West Chester, Pennsylvania, United States
HybridFull Time
1+ YOE1+ years professional experience in AI/ML and micro-service systems; proficiency with AWS services, Python, C#, ML libraries, and enterprise software development practices.
SageMaker, Lambda, EC2, S3, EFS, SNS, SQS, EventBridge, Kinesis, Aurora, DynamoDB, RDS Proxy, Glue, Athena, Redshift, AWS Step Functions, AWS CodePipeline, Python, TensorFlow, PyTorch, scikit-learn, C#, PowerShell, SQL, JavaScript, UML, Docker, Git, GitHub, Jenkins, Bamboo, TeamCity, SpecFlow, Cucumber, Protobufs, Thrift, Avro, JSON, ODBC, Kafka, Angular, React
1mo
Save
Mark Applied
Hide
SENIOR SOFTWARE DEVELOPER/ENGINEER (CLOUD/CYBER)
Huntsville or Aberdeen or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
7+ YOEBS in CS/Software Eng or equivalent, 7+ years software development experience, DoD Top Secret/SCI eligibility, experience with Python, containers, AI/LLMs, databases, Linux, AWS, and Agile/Scrum.
LLMs, Ollama, LM Studio, Python, C#, Go Lang, React, JavaScript, HTML, CSS, Git, Docker, Bash, TensorFlow, PyTorch, SQL, MongoDB, PostgreSQL, Redis, Linux, AWS, RESTful API, Agile/Scrum
2mo
Save
Mark Applied
Hide
Software Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Senior software engineer to design and deliver high-performance embedded and enterprise software. Requires expertise in C/C++, Java or C#, Python/scripting, Git, build systems, IDEs, CI/CD, and ability to obtain Top Secret clearance (US citizen).
C/C++, Java, C#, Python, Windows, Linux, Microsoft PowerShell, Bash, Git, CMake, Make, MSBuild, Gradle, Microsoft Visual Studio, CLion, VSCode, Eclipse, JIRA, Confluence, Boost, JUnit, PyTest, NUnit, Jenkins, Azure DevOps, GitLab CI, MATLAB/Simulink, SysML, ARINC 429, MIL‑STD‑1553
3mo
Save
Mark Applied
Hide
Journeyman Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
4+ YOEBachelor's in CS/Engineering with 4 years experience or 6 years related software development experience; US citizenship; SECRET clearance; proficiency in Python, C++, Java, C#; CI/CD; DoD/C-UAS experience preferred.
Python, C++, Java, C#, CI/CD, containerization, microservices, cloud
1mo
Save
Mark Applied
Hide
Software Engineer III
King of Prussia or United States
RemoteFull Time
4+ YOEBachelors in CS/IT or related; 4 years cloud infrastructure/automation (AWS/Azure/GCP); 4 years software development with Java, Python or Go; 4 years SQL/NoSQL; 3 years Docker, Kubernetes, CI/CD and Pulsar; 3 years monitoring/incident response.
AWS, Azure, GCP, Java, Python, Go, SQL, NoSQL, Docker, Kubernetes, CI/CD, Pulsar
3w
Save
Mark Applied
Hide
2440AS - Software Engineer I
Aberdeen, Maryland, United States
$75k-$98k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
1+ YOEBachelors in computer science or similar, 1-5 years software programming experience, proficiency in Java/C/C++/Python/JavaScript, experience with backend/microservices/web development, strong communication and documentation skills, current DoW clearance required.
Java, C/C++, Python, JavaScript, Node.js, Vue.js, Windows, Linux, Android, UML
2w
Save
Mark Applied
Hide
Senior Software Engineer
Aberdeen, Maryland, United States
$90k-$198k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
C++, Java, Python, C#, Git, SVN, CI/CD, automated testing tools
2mo
Save
Mark Applied
Hide
Agentic AI Software Engineer
King of Prussia, Pennsylvania, United States
$108k-$228k/yr OnsiteFull Time
8+ YOEBS in CS or related field; 8+ years software engineering; Python; SDLC; Git; Jira/Confluence; microservices; Agile; TS/SCI with Polyhedral.
Python, Git, GitLab, GitHub, Bitbucket, Jira, Confluence, REST APIs, Kubernetes, Helm, LangGraph, CrewAI, AutoGen, Pydantic AI, RAG, Langfuse, MLflow, DSPy
2mo
Save
Mark Applied
Hide
Software Engineer - AI Augmented Development
Wayne, Pennsylvania, United States
HybridFull Time
1+ YOEProficient in Python and SQL; strong AWS experience; able to use AI-assisted development tools; effective communicator.
Python, SQL, AWS, Snowflake (nice to have), AI tools (Claude Code, OpenAI Codex, Cursor, Copilot), CloudFormation or CDK, Terraform (nice to have), SQL
1mo
Save
Mark Applied
Hide
Radio Services Software Engineer
Aberdeen Proving Ground, Maryland, United States
$150k-$174k/yr OnsiteFull Time
10+ YOEBachelor's in CS/SE (or equivalent experience), 10+ years software engineering with 3+ years on DoD communications, proficiency in C++, Java, or Python, secure coding and networking protocols knowledge, active DoD Secret clearance.
C++, Java, Python, VENOM, Agile, DevSecOps
1w
Save
Mark Applied
Hide
Software Engineer - AI Accelerated Development
Blue Bell, Pennsylvania, United States
OnsiteFull Time
Full-stack .NET (C#/ASP.NET Core) developer with hands-on agentic AI experience, LLM API integration (Anthropic/OpenAI/Bedrock/Azure OpenAI), daily Claude Code use, Python proficiency, and observability for AI features.
.NET, C#, ASP.NET Core, Claude Agent SDK, Claude Code, Anthropic, OpenAI, Bedrock, Azure OpenAI, Qdrant, pgvector, Pinecone, Python, Model Context Protocol (MCP)