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16 backend development jobs at 15 companies in Lancaster, PA

3w
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Backend Software Developer
Wayne, Pennsylvania, United States
HybridFull Time
PowerPay
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.
Ruby, Ruby on Rails, Python, NodeJS, SFTP, FTP, OAuth2, OIDC, TLS, SSH, Postgresql, Mysql, MariaDB, rSpec, Postman, Linux, Docker, ReactJS, NewRelic, AWS, CI/CD
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2w
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Backend API Engineer Technical Lead II
Charlotte or Malvern
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
8+ YOE8+ years related experience, 3+ years Node.js, proficient in TypeScript and NestJS, experience with AWS, CI/CD, GitHub Actions, REST/Spring Boot/Java a plus; undergraduate degree or equivalent; strong communication and mentoring skills.
Node.js, Typescript, NestJS, Visual Studio Code, RESTful Services, Spring Boot, Java, CI/CD Pipeline, Github Actions, Git/GitHub, JIRA, AWS ECS Fargate, AWS EKS, AWS Lambda, XCode, SWIFT, Android Studio
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1mo
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Backend Software Engineers - King of Prussia, PA
King of Prussia, Pennsylvania, United States
$75k-$150k/yr OnsiteFull Time
In-Depth Engineering
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.
Rust, C, Java, Docker, gRPC, Kubernetes, Helm, Gitlab CI/CD, Python, Selenium, Cypress, Playwright
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Lead Software Engineer (1308)
Wayne, Pennsylvania, United States
OnsiteFull Time
autoMHatic Financial
autoMHatic Financial: Specialized lender for manufactured home loans with instant decisions.
5+ YOE5+ years backend/full-stack engineering experience with APIs, integrations, Snowflake, SQL, and modern DevOps; strong communication and ownership; experience mentoring offshore developers.
Snowflake, SQL, C#/.NET, Java, Node.js, Git, CI/CD, dbt, iPaaS
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1mo
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Senior AI Engineer
United States or Wilmington
$126k-$197k/yr RemoteFull Time
Chemours
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.
Python, JavaScript, React.js, TypeScript, HTML, Pydantic, PyTorch, Azure, Azure Kubernetes, Office 365, GitHub
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2w
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Senior Full Stack Data Engineer
West Chester, Pennsylvania, United States
OnsiteFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
7+ YOEBachelor's preferred,5+ years full-stack/data engineering experience (7+ preferred),backend and frontend development,Power BI dashboards,API and microservices,Oracle/Mongo DB,Cloud Foundry,GitHub,ELK,Agile with Jira.
Power BI, Jira, Smartsheet, Java, Python, Node.js, React, Angular, Tailwind CSS, DotNet, REST, API Gateway, Mongo DB, Cloud Foundry, GitHub, GitHub Actions, ELK, Agentic AI, Open Spec SDD
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3w
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Lead Software Engineer
Wayne, Pennsylvania, United States
OnsiteFull Time
autoMHatic Financial
autoMHatic Financial: Provides consumer financing and loans for manufactured housing.
5+ YOE5+ years backend or full‑stack engineering experience focused on APIs, services, integrations, Snowflake, SQL, and modern DevOps/CI/CD practices.
Snowflake, SQL, C#/.NET, Java, Node.js, Git, CI/CD, dbt
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1w
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Senior Software Engineer
Berwyn, Pennsylvania, United States
HybridFull Time
Envestnet
Envestnet: Provides an integrated wealth management technology platform for advisors.
7+ YOE7+ years backend engineering with Java/Python, 2+ years hands-on AI/ML, experience designing distributed transactional systems in regulated fintech, security/observability knowledge, and production incident handling.
Java, Python, Spring Boot, SQL, Kafka, Kubernetes, Docker, LangGraph, RAG, Vector Stores
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2mo
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Sr. Software Engineer
Wayne or Naperville
$120k-$135k/yr HybridFull Time
Frontline Education
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.
Python, CI/CD, AWS Bedrock, Azure OpenAI, Google Vertex AI, PyTorch, Hugging Face Transformers, vLLM, FAISS, Pinecone, OpenSearch/KNN, LangChain, LlamaIndex, MLflow, Weights & Biases, Prometheus
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2mo
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Principal Software Engineer, Field Engineering
Aberdeen Proving Ground, Maryland, United States
$160k-$220k/yr OnsiteFull Time
Raft
Raft: Builds AI and data platforms for U.S. national defense.
5+ YOE5+ years hands-on software engineering; active Secret clearance; backend Go/Java/Rust; DevSecOps; Kubernetes; Bash/Python; Army-domain knowledge; customer-facing; Security+ readiness; willing to relocate to APG.
Go, Java, Rust, Kubernetes, Helm, CI/CD, Infrastructure as Code, Bash, Python, RMF
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3w
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Senior Software Engineer Applied AI
Harrisburg or United States
RemoteFull Time
AMC Health
AMC Health: Provides remote patient monitoring and virtual care technology.
7+ YOE7+ years building and operating production backend systems, strong Python skills, distributed systems/cloud experience, hands-on LLM/generative AI and traditional ML lifecycle experience, disciplined data handling in regulated environments.
Python, AWS, LLM
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3mo
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Lead Software Engineer II – Java & Python
Wilmington, Delaware, United States
$100k-$135k/yr RemoteMultiple Commitments Available
Best Egg
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.
AWS, Docker, Kubernetes, ECS, EKS, CloudWatch, Datadog, DynamoDB, RDS, PostgreSQL, DocumentDB, CI/CD
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2mo
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Software Engineer Staff
Colorado Springs or King of Prussia
$114k-$227k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
U.S. citizenship and ability to obtain Secret clearance required. Professional front- and back-end software engineering experience, familiarity with DevSecOps (GitLab/GitHub), Docker, Kubernetes, web/backend frameworks, automated testing tools, and Agile; bachelor’s degree preferred.
DevSecOps, GitLab, GitHub, Docker, Kubernetes, AstroUx, .NET Core, Spring Boot, Angular, React, Cypress, Playwright, Postman, Agile
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1d
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Sr Manager – Customer Identity & Platform Engineering
Towson or United States
$111k-$178k/yr RemoteFull Time
Stanley Black & Decker
Stanley Black & DeckerNYSE: SWK: Manufacturer of power tools, hand tools, and outdoor equipment.
10+ YOERequires 10+ years in software, backend, or platform engineering, engineering team leadership, CIAM expertise, AWS, Kubernetes, APIs, microservices, secure development, and privacy regulations.
Customer Identity & Access Management (CIAM), OAuth 2.0, OpenID Connect (OIDC), SAML, AWS, REST APIs, Kubernetes, DevSecOps, CI/CD
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1mo
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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
DLA Piper
DLA Piper: Global law firm providing comprehensive legal and business services.
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
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1mo
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AI Solutions Architect
Taguig or King of Prussia or São Paulo or India or Portugal or Mexico
OnsiteFull Time
WTW
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)
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