14 senior backend engineer jobs at 10 companies in Lancaster, PA
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Lead Backend Engineer - Mobile APIs
Charlotte or Malvern
HybridFull Time
8+ YOE8+ years related experience, including 3+ years development and 3+ years Node.js. Undergraduate degree or equivalent experience required; graduate degree preferred.
Node.js, TypeScript, NestJS, Visual Studio Code, RESTful Services, Spring Boot, Java, AWS, CI/CD Pipeline, GitHub Actions, Git, GitHub, JIRA, Amazon ECS, AWS Fargate, Amazon EKS, AWS Lambda, Xcode, Swift, Android Studio
4w
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Backend API Engineer Technical Lead II
Charlotte or Malvern
HybridFull Time
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
1mo
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Senior AI Engineer
United States or Wilmington
$126k-$197k/yr RemoteFull Time
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
1mo
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Senior QA Engineer
Malvern, Pennsylvania, United States
OnsiteFull Time
5+ YOE5+ years QA experience for backend/platform/cloud/web applications; strong manual testing, test strategy, defect management; automation with Python/Pytest/Playwright/Selenium; API, Linux, Docker, SQL, Jira/Confluence experience.
Python, Pytest, Playwright, Selenium, Postman, Swagger/OpenAPI, Docker, Keycloak, Jira, Confluence, TestRail, Zephyr, Xray, PostgreSQL, Bash, Ansible
3w
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Senior Full Stack Data Engineer
West Chester, Pennsylvania, United States
OnsiteFull Time
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
1mo
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Senior Software Engineer Applied AI
Harrisburg or United States
RemoteFull Time
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
1mo
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Lead Software Engineer
Wayne, Pennsylvania, United States
OnsiteFull Time
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
1mo
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Lead Software Engineer (1308)
Wayne, Pennsylvania, United States
OnsiteFull Time
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
2mo
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Principal Software Engineer, Field Engineering
Aberdeen Proving Ground, Maryland, United States
$160k-$220k/yr OnsiteFull Time
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
6d
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Application Engineer - III
Malvern, Pennsylvania, United States
HybridFull Time
5+ YOERequires 5+ years in software development, integration, database design, and backend architecture; relevant computer science degree; expertise in Java, cloud, APIs, databases, testing, and CI/CD.
Java, Spring Boot, Angular, Node.js, AWS, CloudFormation, ECS, Fargate, DynamoDB, S3, Lambda, IAM, SQL, GitHub, Bitbucket, Bamboo, CI/CD, TDD/BDD, Splunk, Honeycomb, Python, Agile, Confluence, JIRA, Adobe Experience Manager
6d
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Application Engineer - III
Malvern, Pennsylvania, United States
HybridFull Time
5+ YOERequires 5+ years in software development, integration, database design, and backend architecture; relevant computer science degree; expertise in APIs, databases, cloud platforms, and secure scalable systems.
Java, Spring Boot, Angular, Node.js, AWS, AWS CloudFormation, Amazon ECS, AWS Fargate, Amazon DynamoDB, Amazon S3, AWS Lambda, AWS IAM, SQL, GitHub, Bitbucket, Bamboo, CI/CD, TDD/BDD, Splunk, Honeycomb, Python, Agile, Confluence, JIRA, Adobe Experience Manager
3mo
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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
5d
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AI Platform Engineer
Philadelphia or King of Prussia
$140k-$165k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience; 5+ years of software development focused on backend services and integrations; C#/.NET, REST APIs, OAuth 2.0, Azure, LLM APIs, SQL Server, testing, CI/CD, and infrastructure-as-code.
Microsoft Power BI, Microsoft Fabric, Deltek Vantagepoint, Autodesk Platform Services, Egnyte, Microsoft Entra ID, OAuth 2.0, OpenID Connect, Microsoft Azure, OpenAI, Anthropic, MCP, C#, .NET Core, Python, TypeScript, SQL Server, Microsoft Azure App Service, Microsoft Azure Functions, Microsoft Azure Key Vault, Microsoft Azure API Management, Microsoft Azure Application Insights, Azure DevOps, GitHub Actions, Bicep, Terraform, Microsoft Graph, REST APIs, CI/CD
1w
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Sr Manager – Customer Identity & Platform Engineering
Towson or United States
$111k-$178k/yr RemoteFull Time
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