135 sr api developer jobs at 69 companies in Millville, NJ
2mo
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Sr. Software Engineer
Camden, New Jersey, United States
$116k-$127k/yr HybridFull Time
6+ YOE6+ years full stack development with .NET/C#, REST APIs; Dynamics 365/Dataverse; Azure; Power Platform; SDLC/DevOps; Bachelor's degree.
.NET, C#, SQL Server, REST APIs, Azure, Microsoft Dynamics 365, Dataverse, Power Apps, Power Automate, Azure DevOps, Git, CI/CD
1d
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Sr. Software Engineer
Philadelphia, Pennsylvania, United States
$88k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent experience, 8+ years of software development, 5+ years of healthcare IT, technical team leadership, EDI/X12, SQL Server, Azure, Python, Django, REST APIs, and healthcare integration expertise.
SQL Server, T-SQL, Python, Django, Azure API Management, REST APIs, Healthcare EDI/X12, JSON, XML, Git, HL7/FHIR, Azure Functions, Azure Logic Apps, Azure Data Factory, Power BI, Docker, Kubernetes, DevOps, CI/CD
1w
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Sr. Angular Developer
Newark, Delaware, United States
$100k-$120k/yr OnsiteFull Time
10+ YOEExperience with Angular 12+, TypeScript, HTML/CSS/SCSS, REST APIs, SQL and relational DBs; Git and CI/CD; Agile; Bachelor's in Computer Science; 10+ years of experience.
Angular, TypeScript, HTML, CSS, SCSS, REST APIs, SQL, Oracle, PostgreSQL, SQL Server, Git, CI/CD
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
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
2mo
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Sr. Software Engineer
Wayne or Naperville
$120k-$135k/yr HybridFull Time
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
1d
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Sr. Backend Engineer - Xumo
Irvine or Philadelphia
$142k-$189k/yr HybridFull Time
5+ YOEBachelor's degree preferred; 5+ years building Java backend servers, web service APIs, databases, and Linux systems. Requires microservices, Kubernetes, cloud, and video streaming experience.
Java, REST, SOAP, HTTP, SSL, MySQL, PostgreSQL, Oracle, MongoDB, Linux, CentOS, OSX, Docker, Kubernetes, Google Cloud, AWS, Azure, HLS, JSON, RSS, ETL, RabbitMQ, Kafka, MP4, Mpeg-Dash
2w
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Blockchain - Sr Lead Security Engineer
Plano or Seattle or Wilmington or Columbus or Jersey City or Palo Alto
$171k-$260k/yr OnsiteFull Time
7+ YOEBachelor's in CS or related,7+ years software development with ≥2 years blockchain experience, strong Java/Python skills, blockchain fundamentals, cryptography (MPC,TSS,DKG,ECDSA,EdDSA), AWS, containers, infra-as-code, API and security best practices.
Java/J2EE, Python, Spring Boot, Flask, FastAPIS, Multi-Party Computation (MPC), ECDSA, EdDSA, BIP-32/BIP-44, AWS EC2, AWS EKS, AWS Lambda, AWS S3, AWS RDS, AWS IAM, AWS SQS, AWS SNS, API Gateway, AWS KMS, Terraform, CloudFormation, Docker, Kubernetes, Oracle, PostgreSQL, DynamoDB, MongoDB, Redis, Datadog, Dynatrace, Splunk, Grafana, Prometheus, Jenkins, GitHub Actions, Spinnaker, GitHub Copilot, Claude Code, OAuth 2.0, JWT, TLS, mTLS
1d
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Software Developer
Mount Laurel, New Jersey, United States
$60k-$135k/yr OnsiteFull Time
5+ YOERequires 5–8 years of experience with Scala, Java, Spring, full-stack development, Python, Kafka, CI/CD, monitoring tools, databases, REST APIs, microservices, and distributed systems.
Scala, Java, Spring Framework, Spring Boot, Spring Cloud, Python, Confluent Kafka, Jenkins, GitHub Actions, GitLab CI/CD, Azure DevOps, Splunk, AppDynamics, MongoDB, Couchbase, Redis, REST APIs, Microservices, Java-J2EE
1mo
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Dynamics 365 Developer (Remote Opportunity)
Philadelphia or Pennsylvania or United States
RemoteFull Time
5+ YOEBachelor's degree, 5+ years Dynamics 365 (Customer Service) experience, proficiency with Dynamics 365 customization and development (JavaScript, C#, .NET, Power Platform), Dataverse, Power Apps/Automate, Azure, integrations and APIs.
Microsoft Dynamics 365, JavaScript, C#, .NET, Microsoft Power Platform, Microsoft Dataverse, Microsoft Power Apps, Microsoft Power Automate, Microsoft Azure, Microsoft Logic Apps, Microsoft Azure Functions, APIs, web services, DevOps
1mo
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Full Stack Developer
United States or Philadelphia
$160k-$180k/yr RemoteFull Time
6+ YOE6+ years full-stack development experience; must show portfolio; autonomous; current on AI tooling; proficiency in JavaScript/TypeScript (React, Node.js), RESTful APIs, GraphQL, cloud (AWS/GCP/Azure), serverless; experience with AI APIs and Git.
JavaScript, TypeScript, React, Node.js, RESTful APIs, GraphQL, AWS, GCP, Azure, Serverless, OpenAI, Anthropic, Git, GitHub, CI/CD, HubSpot, Asana, PandaDoc, Slack, Google Workspace
2mo
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Senior Java Developer - Vice President
New Castle, Delaware, United States
HybridFull Time
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
4d
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Senior Software Developer
Philadelphia or United States
$110k-$135k/yr RemoteFull Time
5+ YOE5+ years professional software development, BS preferred, strong experience with Angular, .NET Core/ASP.NET Core, C#, TypeScript, JavaScript, HTML/CSS, PostgreSQL, API design, OOP and architecture.
Angular, ASP.NET Core, C#, PostgreSQL, TypeScript, JavaScript, HTML/CSS
2w
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Senior Python Engineer, Integration
Philadelphia or New York City or Austin or Sofia or Belgrade
RemoteContract
5+ YOE5+ years Python development experience focused on API and third-party integrations, observability, testing, and on-call production support.
Python, Django, Datadog, CloudWatch, Grafana
3w
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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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Senior Java Developer - Vice President
New Castle or Irving
$126k-$189k/yr HybridFull Time
6+ YOEProficiency in Java, RESTful APIs (Spring), Oracle/SQL/MongoDB, OpenShift/Kubernetes, MQ/Kafka, cloud engineering, DevOps/CI/CD, SDLC/Agile; strong systems analysis; 6+ years preferred; Bachelor’s required, Master’s preferred.
Java, API, Spring, Oracle, SQL, NoSql, MongoDB, OpenShift, Kubernetes, MQ, Kafka, SDLC, Agile, DevOps, CI/CD, GenAI, LLMs
2w
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Software Engineer II
Wilmington, Delaware, United States
OnsiteContract
5+ YOE5+ years software development with Angular and .NET, C#, Azure, DevOps and CI/CD experience; strong SOLID and testing practices; ability to lead modernization and mentor junior developers.
Angular, .NET Framework, .NET Core, C#, Web APIs, Entity Framework Core, Microsoft SQL Server, Azure, DevOps, CI/CD, GitLab, ASP.NET Web Forms, PrimeNG, Kendo UI
3w
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Principal Software Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
12+ YOE12+ years in 3D runtime or game engine development, expert C++ (C++17/20/23), graphics APIs (Vulkan, DirectX 12, Metal), engine integrations, profiling/optimization, and strong communication.
C++17, C++20, C++23, Vulkan, DirectX 12, Metal, Unreal Engine, Unity, NVIDIA Omniverse, glTF, 3D Tiles
3d
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Knowledge Engineer Manager - Back-end Engineer
Seattle or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yr HybridFull Time
5+ YOEMinimum 5 years in knowledge graph hydration, ontology mapping, graph and relational databases, vector databases, Python or Java, and REST API development; bachelor's degree or equivalent experience required.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL APIs, D3.js, Cytoscape.js, Terraform
1d
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Full-Stack Developer - Senior
Herndon or Egg Harbor Township or Bowie
$112k-$179k/yr OnsiteFull Time
6+ YOERequires U.S. citizenship, Public Trust eligibility, and a degree with 6–12 years of experience. Requires cloud, full-stack development, Java, Spring Boot, Angular, Agile, DevSecOps, REST APIs, and microservices experience.
AWS, Microsoft Azure, Google Cloud Platform (GCP), Java, Spring Boot, Angular, Agile, DevSecOps, RESTful APIs, microservices, Docker, Kubernetes, Terraform, CloudFormation, ARM templates, NIST, RMF, FedRAMP, NoSQL, CI/CD
4w
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Senior Software Engineer – Mobile Development (Android)
Philadelphia, Pennsylvania, United States
$105k-$110k/yr OnsiteFull Time
5+ YOE5+ years Android development experience with Kotlin, Jetpack/Compose, Play Store deployment, REST API integration, strong problem-solving and communication; bachelor\u0002s degree required or equivalent experience.
Kotlin, Jetpack Compose, Coroutines, Android Studio, Gradle, Android SDK, Google Play Console, Git, NodeJs, TypeScript, React Native, SQL, PostgreSQL, Oracle, MSSQL, Amazon Web Services (AWS)