105 api developer jobs at 51 companies in Slatington, PA
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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
3w
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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
2mo
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API & GCP Architect
Exton or Atlanta
OnsiteFull Time, Contract
10+ YOEExpertise in Apigee (Edge/X/Hybrid), GCP, Java/Spring Boot, microservices, Docker/Kubernetes, API security (OAuth2.0, JWT, OIDC, mTLS); 10+ years software development and 5+ years Apigee experience preferred.
Apigee Edge, Apigee X, Apigee Hybrid, GCP, GKE, Cloud Run, Pub/Sub, Cloud Functions, Cloud Storage, IAM, Monitoring, Logging, REST APIs, JSON, XML, OpenAPI/Swagger, Java, Spring Boot, JavaScript, Python, Shell, Docker, Kubernetes, Terraform, Kafka, RabbitMQ, Prometheus, Grafana, Cloud Monitoring, Splunk, ELK, OAuth 2.0, JWT, OpenID Connect, mTLS
1mo
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Senior Developer / Lead Developer
Allentown or Providence or Louisville
HybridFull Time
5+ YOEBachelor's degree, 5+ years software development experience (senior) or 7+ (lead); proficiency in C#, Java, TypeScript, frontend frameworks, APIs and SQL; experience with cloud, microservices, and emerging tech.
C#, Java, TypeScript, JavaScript, Python, Angular, React, SQL, Microservices, Cloud Architecture, APIs, SAP ABAP, SAP S/4HANA, Kubernetes, Azure Kubernetes Service (AKS), DevOps, RPA, Artificial Intelligence
2mo
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PHP Developer II
Horsham, Pennsylvania, United States
HybridFull Time
3+ YOE3-5 years of PHP development; strong SQL; Git; REST APIs; Linux; web performance; API integration; mentoring.
PHP, SQL, MySQL, HANA, SQL Server, Git, Linux, REST APIs, Bootstrap, API
1mo
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Lead Developer
Allentown or Louisville or Providence
HybridFull Time
7+ YOEBachelor's degree (or equivalent), 7+ years experience (Lead) or 5+ years (Senior); strong software development background with C#, Java, JavaScript/TypeScript, front-end frameworks (Angular/React), APIs/JSON, and SQL; experience with microservices, cloud, containerization and Kubernetes preferred.
C#, Java, Python, JavaScript, TypeScript, Angular, React, SQL, JSON, APIs, Microservices, DevOps, Multi-Cloud, IoT, Intelligent Automation, RPA, Test automation, Machine Learning, Artificial Intelligence, Kubernetes, Azure Kubernetes Service (AKS), SAP ABAP
1w
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Application Developer I
Coppell or Fort Washington
OnsiteFull Time
1+ YOE1-2+ years full-stack development experience with T-SQL, .NET/C#, JavaScript framework (Angular), APIs, JWT, MSSQL, SSMS; familiarity with SDLC/Agile and cloud platforms.
T-SQL, .NET Framework, C#, JavaScript, Angular, APIs, JWT Token Authentication, MSSQL, SSMS, JSON, XML, ASP.NET, C++, Microsoft Azure, Excel, SQL
3d
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UI Developer
Malvern, Pennsylvania, United States
OnsiteFull Time
Required: TypeScript, Node.js, Node-based batch development, batch modernization experience, and AWS proficiency. UI and API development are optional.
TypeScript, Node.js, AWS
1w
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Microservices Developer
Malvern, Pennsylvania, United States
OnsiteContract
Hands-on Node.js and Python development, microservices architecture, REST APIs, AWS ETL/data services (Glue,Lambda,S3,Step Functions,AppFlow,DynamoDB); Docker preferred; cloud platform familiarity.
Node.js, Python, REST, AWS Glue, AWS Lambda, Amazon S3, AWS Step Functions, AWS AppFlow, DynamoDB, Docker, AWS, Azure, GCP
3d
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Software Engineer
King of Prussia or Aurora
$69k-$142k/yr HybridFull Time
3+ YOEBachelor's degree in computer science or related field plus 3 years of software development experience, or equivalent. Requires modern programming, Git, Agile, RESTful API, web development, and willingness to obtain TS/SCI clearance.
Python, Java, Spring Boot, React, AWS, Azure, Kubernetes, JavaScript, TypeScript, C#, Git, RESTful APIs, Docker, PostgreSQL, MySQL, Jenkins, GitLab CI, GitHub Actions
2w
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Adobe Marketo Sr Developer
Malvern or Charlotte or Atlanta
$68k-$109k/yr OnsiteFull Time
9+ YOE9+ years in marketing automation with 3+ years in Marketo architecture; Marketo architecture certification preferred; experience with AEM, Salesforce/Dynamics, HTML/CSS, APIs, data governance, analytics; strong communication.
Marketo, Adobe Experience Manager (AEM), Salesforce, Dynamics, HTML, CSS, API
3d
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Software Engineer
King of Prussia or Aurora
$69k-$142k/yr HybridFull Time
3+ YOEBachelor's degree in computer science or related field plus 3 years of software development, or equivalent; proficiency in a modern language, Git, RESTful APIs, Agile/Scrum, and eligibility for TS/SCI clearance.
Python, Java, Spring Boot, React, AWS, Azure, Kubernetes, JavaScript, TypeScript, C#, Git, RESTful APIs, Docker, PostgreSQL, MySQL, Jenkins, GitLab CI, GitHub Actions
5d
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Lead AI Engineer
Holmdel or Bethlehem or New York City
$119k-$195k/yr HybridFull Time
Advanced knowledge of machine learning engineering, distributed systems, cloud infrastructure, AI platforms, LLMs, RAG pipelines, orchestration, agentic frameworks, secure APIs, and enterprise governance.
Large Language Models (LLMs), retrieval-augmented generation (RAG), model orchestration frameworks, Agentic frameworks, API, cloud infrastructure, AI platforms
4w
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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
2d
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Senior Software Engineer
Malvern, Pennsylvania, United States
HybridFull Time
6+ YOERequires 6–9 years developing web applications, 3+ years with Ruby, Linux, APIs, databases, testing, and security protocols. Preferred experience includes cloud, containers, DevOps, Jenkins, React, AWS, Redis, and JIRA.
Linux, Git, Ruby, JavaScript, JSON, XML, OpenAPI, SFTP, FTP, OAuth2, OIDC, SSL, SSH, LDAP, Ruby on Rails, Python, REST, GraphQL, SQL, NoSQL, PostgreSQL, Jenkins, Node.js, React, Rust, AWS, RabbitMQ, Kafka, Redis, JIRA, Kubernetes
1w
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Applied AI Engineer
Batavia or Buffalo or Wyomissing or Rochester or Ithaca
$105k-$145k/yr HybridFull Time
5+ YOEBachelor's degree and 5+ years in software engineering, data science, or applied AI; proficiency in Python and APIs; experience with LLMs, MLOps, cloud AI services; production deployment and governance knowledge.
Python, APIs, Azure, AWS, Google Cloud Platform, Azure Machine Learning, MLflow, Databricks, SageMaker, Vertex AI, Microsoft Foundry, Azure OpenAI, Copilot Studio
3w
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Backend Software Developer
Wayne, Pennsylvania, United States
HybridFull Time
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
1mo
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Software Engineer, Senior
Center Valley, Pennsylvania, United States
$117k/yr HybridFull Time
4+ YOEBachelor's in computer science/related and 4 years software development experience; proficiency with .NET (VB.Net, C#, .NET Core, ASP.NET), RESTful APIs, SQL Server, cloud (Azure or AWS), unit/integration testing, CI/CD and Git; strong communication and analysis skills.
.NET, VB.Net, C#, .NET Core, ASP.NET, RESTful APIs, SQL Server, Azure, AWS, Unit testing, Integration testing, CI/CD, Git
2mo
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Senior Software Engineer (Frontend Developer)
Colorado Springs or King of Prussia
$93k-$186k/yr HybridFull Time
3+ YOEFrontend engineer with Angular, JavaScript, HTML, CSS; Docker and REST API experience; UI/UX tooling (Figma, MockFlow, UXPin, Axure); 3+ years' relevant experience; US citizenship and Secret clearance required.
Angular, JavaScript, CSS, HTML, Docker, REST APIs, Figma, MockFlow, UXPin, Axure, Cypress, Selenium, Playwright, Jest, GitLab CI/CD, Helm, Kubernetes, gRPC, Python, Flask
1mo
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Senior MuleSoft Developer
Irving or Boca Raton or Blue Bell
$115k-$173k/yr OnsiteFull Time
7+ YOE7+ years MuleSoft integration experience, Bachelor’s or equivalent, expertise with Mule 4, DataWeave, API-led design, CloudHub, CI/CD, and enterprise integrations across Salesforce and cloud systems.
Mule 4, DataWeave 2.0, RAML, OAS, Anypoint Code Builder (ACB), Anypoint Platform, CloudHub 2.0, Private Spaces, Anypoint MQ, OAuth 2.0, JWT, API Manager, Harness, Maven, MUnit, Java, SQL, Salesforce, Google Cloud, JMS, Exchange, Runtime Manager, Cursor, Windsurf, Claude
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