23 python backend developer jobs at 20 companies in New Castle, DE
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
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.
PowerPay: Digital lending platform for home improvement and healthcare loans.
Experience building backend services and APIs using Ruby/Rails, Python or NodeJS; familiarity with databases, integrations (SFTP/FTP, OAuth2, OIDC), security (TLS, SSH), Linux/Docker, testing and API tools.
In-Depth Engineering: Develops combat systems and radar software for the US military.
2+ YOEU.S. citizen with valid passport and active Secret clearance; Bachelor's in STEM; 2+ years experience; familiarity with Rust/C/Java, Docker, gRPC, SDLC; exposure to containerization and Agile.
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEExperience with Rust/C, Python, Java; Docker, gRPC; SDLC knowledge; 1+ years relevant experience or advanced CS degree. Active Secret clearance and U.S. citizenship required.
$100k-$135k/yrRemoteMultiple Commitments Available
Best Egg: Provides personal loans and credit cards for prime borrowers.
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.
ChemoursNYSE: CC: Manufactures specialty chemicals, refrigerants, and high-performance industrial fluoropolymers.
8+ YOEDegree in Computer Science/Engineering, 8+ years backend development with Python and JavaScript, 2+ years production GenAI systems experience, React/TypeScript UI skills, Pydantic proficiency, strong stakeholder communication.
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.
Frontline EducationNYSE: ROP: Provides administrative and management software for K-12 school districts.
5+ YOE5–7 years backend engineering or intelligent systems with production impact; strong Python, CI/CD, and system design; experience with ML model APIs and cloud inference; familiarity with vector databases and retrieval systems.
EY-Parthenon - Strategy and Execution - Growth Platforms - Software Engineer - Sr Assoc/Consultant (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$130k-$185k/yrHybridFull Time
EY: Global firm providing audit, tax, and professional consulting services.
1.5+ YOEBachelor's degree plus ~2 years related experience (or graduate degree plus ~18 months). Experience with backend/full‑stack development (Python, Java, Scala, TypeScript), cloud (AWS/GCP), containerization, IaC, LLM integration, and productionizing AI tooling; strong communication and client‑facing skills.
Python, Java, Scala, TypeScript, AWS, GCP, Microsoft Copilot
AssetWorks: Develops software for managing physical assets, fleets, and infrastructure.
1+ YOE1+ years building AI-powered apps; experience with AI Agents, PostgreSQL/pgvector, Azure OpenAI; strong C#/.NET backend skills; LLM integration and prompt engineering.
Universal Health ServicesNYSE: UHS: Operates acute care hospitals and behavioral health facilities.
3+ YOEBachelor's in CS or related, 3+ years AI/ML or backend experience, proficiency in Python/Java/JavaScript/Typescript, ML frameworks, cloud platforms, healthcare standards, and CI/CD/DevOps.
TransamericaNYSE: AEG: Provides insurance, retirement solutions, and investment products to customers.
6+ YOE6+ years software development experience with 5+ years on AWS; Bachelor’s in CS or related (or equivalent); expertise with core AWS services, IaC, CI/CD, backend languages, containerization, networking, security, and observability.
Brown Brothers Harriman: Providing global investment management, custody, and private banking services.
2+ YOE2+ years Java/Python backend development; strong Spring Boot and REST API experience; SQL/NoSQL databases; familiarity with TypeScript/Angular, CI/CD, cloud (OpenShift/Azure), Unix/Linux; Agile experience.
Java, Python, Spring Boot, Spring MVC, Spring Data, Spring Security, REST, TypeScript, Angular, RxJS, HTML, CSS, SQL, NoSQL, CI/CD pipelines, OpenShift, Azure, Unix, Linux
Taguig or King of Prussia or São Paulo or India or Portugal or Mexico
OnsiteFull Time
WTWNASDAQ: WTW: Provides global risk management, insurance brokerage, and advisory services.
7+ YOE7+ years solution/cloud architecture experience (Azure preferred); hands-on RAG and LLM experience (LangChain, LangGraph); Power Platform and low-code knowledge; backend development in Python/Node.js/.NET; strong stakeholder communication and mentoring skills.
AKS, Azure OpenAI Service, Azure AI Foundry, Azure Functions, API Management, Service Bus, Azure AI Search, Cosmos DB, Azure Data Factory, Azure Monitor, Promptflow, LangSmith, LangChain, LangGraph, Azure OpenAI, Google Gemini, Lyzr, Moveworks, ServiceNow AI, Glean, Workato, Microsoft Power Apps, Microsoft Power Automate, Microsoft Copilot Studio, Microsoft AI Builder, Python, Node.js, .NET, Microsoft SharePoint, Microsoft Teams, Microsoft Entra ID, OAuth 2.0, Azure Data Lake, Microsoft Fabric, Microsoft Purview, Microsoft 365 (M365), Model Context Protocol (MCP)