148 api engineer jobs at 77 companies in Lancaster, PA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
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.
Node.js, Python, Elasticsearch, Redis
3d
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Python API Developer
Malvern, Pennsylvania, United States
$110k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
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
1mo
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API Developer/Programmer
Aberdeen Proving Ground, Maryland, United States
$90k-$150k/yr OnsiteFull Time
SURVICE Engineering
SURVICE Engineering: Engineering services and survivability analysis for defense systems.
2+ YOEBachelor's degree in a technical field and 2+ years experience. Experience with web/API development, MongoDB, PostgreSQL, Microsoft Azure, Keycloak, Java, cloud/containerization, information systems security, and Agile.
MongoDB, PostgreSQL, Microsoft Azure, Keycloak, Java
3mo
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API Equipment Inspector
Linden or New Castle
OnsiteFull Time
Nexpera
Nexpera: Recycles industrial chemicals and manufactures sulfur-based products.
3+ YOE3+ years in high-hazard chemical/oil refining industries; API 510/570/653 certs (2 of 3); travel ~40%; PSM knowledge; able to obtain missing API certs; strong QA/inspection expertise; driver license and TWIC; proficient in MS Office; SAP experience.
MS Office, SAP
3w
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Automation Engineer
West Chester, Pennsylvania, United States
OnsiteFull Time
CTDI: Repairs and manages logistics for telecommunications and electronic equipment.
0+ YOE0-4 years programming experience (Structured Text or C#/C++/Embedded C) for PLCs and motion controllers; experience with machine-control APIs; bachelor’s degree in an engineering or computer/robotics field required.
PLC, motion controllers, Structured Text (ST), C#, C++, Embedded C, Ladder Logic, Raspberry Pi, Arduino, machine-control APIs
2w
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Principal Solutions Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Crane NXT
Crane NXTNYSE: CXT: Provides industrial technology for secure payments and product authentication.
5+ YOE5+ years software development experience in retail payments with expertise in POS integration, remote teamwork, Microsoft .NET Framework & Linux, C++/C#/Java, REST API and data exchange specifications.
Microsoft .NET Framework, Linux, C++, C#, Java, REST API
1w
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Sr Design Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Timken
TimkenNYSE: TKR: Designs and manufactures engineered bearings and industrial motion products.
5+ YOEBachelor's in Mechanical Engineering, minimum 5 years mechanical drive design experience, familiarity with AGMA/API/MIL, proficiency in SolidWorks and MS Office, US export-eligibility required.
SolidWorks, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
1mo
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Agentic AI Software Engineer
King of Prussia or Aurora
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEActive TS/SCI clearance, polygraphable, Bachelor’s in Computer Science or related, 5+ years software engineering with strong Python, experience with microservices, RESTful APIs, Git and CI/CD, LLMs/agent frameworks, and Agile practices.
Python, Git, GitLab, GitHub, Bitbucket, CI/CD, Jira, Confluence, microservices, RESTful APIs, LLMs, LangGraph, CrewAI, AutoGen, Pydantic AI, MCP, A2A, RAG, vector databases, Langfuse, MLflow, DSPy, AWS, Azure, Kubernetes, Helm, React, Angular, JavaScript, TypeScript
3mo
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PED Integration Dataflow Engineer
Aberdeen Proving Ground, Maryland, United States
$94k-$225k/yr OnsiteFull Time
RSC2
RSC2: Provides technical and engineering services to federal defense agencies.
8+ YOE8 years in systems/network engineering or software integration for defense/intelligence; TS/SCI eligibility; master’s preferred in engineering or CS
APIs, Message Bus, Middleware, DCGS-A, SATCOM
3w
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Software Engineer
Aberdeen Proving Ground, Maryland, United States
$76k-$156k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEBachelor's in CS/SE/EE, 3+ years software development, U.S. citizenship, TS/SCI clearance (CI Poly preferred), strong C++ and Python skills, Linux experience, UI framework and API development experience.
C++, Python, Linux, React, Angular, Vue, Git, CI/CD, Docker, Ansible, Cobbler, HTML/CSS, TypeScript, REST APIs, PostgreSQL, PostGIS, SQLite, Automated testing
1mo
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Infrastructure Automation Engineer 1
Folsom or Denver or Englewood or Minneapolis or St. Paul or Pennington or Woodcliff Lake or Olympia or Folsom or Portland or Harrisburg or Dallas or San Antonio or Austin or Phoenix or Columbia or Minneapolis or Saint Louis Park or Oregon or Portland or Pennington or Woodcliff Lake or Orlando or Harrisburg or Albany or Boulder or Portland or Denver or Englewood or Portland or Denver or Pennington or Woodcliff Lake or Harrisburg or Portland or Orlando
OnsiteMultiple Commitments Available
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
1+ YOEBachelor’s degree or equivalent; 1+ year infra automation; scripting; APIs/REST; CI/CD; IaC; follow standards.
Python, PowerShell, JavaScript, REST, JSON, YAML, Terraform, Ansible, VMware Orchestrator, ServiceNow, CI/CD, Infrastructure as Code
2d
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Visual Inspector - API 510/570/653
New Castle, Delaware, United States
FieldFull Time
Acuren
Acuren: Provider of inspection, NDE, and industrial asset integrity services.
2+ YOEAPI 510/570 certification required (or equivalent), 5–10 years experience or 2+ years on-site, API 653 or CWI a plus, in-depth knowledge of API and ASME standards, experience supporting petrochemical engineers.
3w
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Software Engineer II
Hunt Valley, Maryland, United States
$88k-$133k/yr OnsiteFull Time
Textron
TextronNYSE: TXT: Manufactures aircraft, defense systems, and industrial specialized vehicles.
2+ YOEBachelor's in CS/CE (or Master's) with 2+ years experience; C/C++ and Unix experience, shell scripting, Git/Mercurial, object-oriented design, configuration management, and eligibility for Secret clearance.
C/C++, Unix, shell scripting, Git, Mercurial, MicroPilot’s autopilot software, MOOS DB/IvP, Qt, OpenDDS, Docker, CSS, JavaScript, TypeScript, REST API, SQL, NoSQL, Jenkins, Jira, Coverity, MCP Servers, MCP Tools, CAN
1mo
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Senior Java Developer - Vice President
New Castle, Delaware, United States
HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
6+ YOEProficiency in Java, API, Cloud engineering; RESTful APIs with Spring; Oracle/SQL/NoSQL; OpenShift/Kubernetes; CI/CD; SDLC/Agile; DevOps; able to work in fast-paced environment.
Java, API, Spring, Oracle, SQL, MongoDB, OpenShift, Kubernetes, MQ, Kafka, CI/CD, SDLC, Agile
2w
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.NET Application Support Engineer
Ashburn or Harrisburg or Pennsauken
OnsiteFull Time
TransCore
TransCore: Provides electronic tolling and intelligent traffic management solutions.
3+ YOE3+ years supporting or developing .NET applications, strong C# debugging, PowerShell scripting, IIS management, T-SQL/MS SQL proficiency, and experience with monitoring and automation; bachelor’s degree or equivalent.
C#, .NET Core, .NET Framework, ASP.NET MVC, Web API, PowerShell, IIS, T-SQL, Microsoft SQL Server, Event Viewer, Serilog, Log4Net, Azure, Google, AWS, Docker, Azure DevOps, Jenkins, GitHub Actions, Jira
2w
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Data Engineer
Wyomissing, Pennsylvania, United States
OnsiteFull Time
Metropolitan Companies
Metropolitan Companies: Develops, builds, and manages residential apartment communities and homes.
2+ YOE2+ years working with databases; strong SQL and relational database knowledge; experience with SQL Server, scripting (PowerShell or Python), ETL, APIs, and data integrations; attention to data accuracy.
SQL, SQL Server, PowerShell, Python, APIs, AWS, Azure, GCP, Microsoft Power BI, Tableau, Git
1w
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Senior Software Engineer- Cable Backplane Systems
Yocumtown or Nashua or Raleigh or Austin
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Designs and manufactures electrical connectors and interconnect systems.
8+ YOE8+ years software engineering experience, BS in CS/CE (MS preferred), experience designing large data platforms, APIs, databases, pipelines, EM/ML workflows, and technical leadership/mentoring skills.
MES, APIs, CI/CD, AI/ML
1w
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Senior Software Engineer- Cable Backplane Systems
Valley Green or Nashua or Raleigh or Austin
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Manufactures electronic and fiber optic connectors and interconnect systems.
8+ YOEBS in CS/CE required (MS preferred); 8+ years software engineering experience with large-scale data platforms, databases, pipelines, APIs, analytics/AI/ML workflows, technical leadership, and mentoring.
MES, APIs, CI/CD, AI/ML
1mo
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Application/Agentic AI Engineer
Aberdeen, Maryland, United States
HybridFull Time
NextGen Federal Systems
NextGen Federal Systems: Provides advanced software engineering and mission support to federal agencies.
3+ YOE3+ years in software engineering or AI integration; BS in CS/Software/ Data/IS; proficient in Python/JS/TS/Java; API/microservice experience; LLMs and AI orchestration familiarity; cloud-native with Docker/Kubernetes; SDLC/DevSecOps/CI/CD; Git; strong problem-solving; active security clearance.
Python, JavaScript, TypeScript, Java, APIs, Microservices, Data services, Docker, Kubernetes, Git, CI/CD, SDLC, DevSecOps
3w
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AI Engineer - Lead Software Engineer
Jersey City or Wilmington or Palo Alto
$152k-$215k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience with production LLM applications, AWS cloud-native services, containers/Kubernetes, retrieval-augmented generation, API design, observability, and technical leadership/mentoring.
LLM Suite, AWS, Kubernetes
3d
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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