127 api developer jobs at 55 companies in Plainfield, CT
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Technical Lead – API and Integration Development (Hybrid or Remote - Raleigh, NC)
Canton or Boston or Farmington or Raleigh
$124k-$164k/yr HybridFull Time
9+ YOE2+ MgmtBachelor's/Master's in CS or related, 9+ years Java development (Spring Boot), 2+ years technical leadership, experience with Azure, Kafka/Messaging, Terraform, Docker/Kubernetes, OpenAPI; strong security and communication skills.
Java, Spring Boot, Auth0, Microsoft Azure, Azure Service Bus, Event Hub, Kafka, MQ, Terraform, Docker, Kubernetes, OpenAPI, Swagger
1mo
Save
Mark Applied
Hide
Circle Lead Engineer (CLE) - Personal Insurance
Hartford, Connecticut, United States
$154k-$254k/yr HybridFull Time
7+ YOE2+ Mgmt7+ years software development, 2+ years technical leadership, bachelor’s in CS or related STEM (or equivalent), proficiency in Python, JavaScript/TypeScript, React, AWS/CDK, Terraform, Jenkins, GitHub, API development, and AI/GenAI; strong communication and delivery skills.
Python, JavaScript, TypeScript, React, AWS, AWS CDK, Terraform, Jenkins, GitHub, API Development, AI/GenAI
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Hartford or Charlotte or Columbus or Chicago
$168k-$253k/yr HybridFull Time
12+ YOE12+ years enterprise application development experience, bachelor’s degree in CS/Engineering required, hands-on with Java, Spring Boot, Angular/TypeScript, SQL, cloud (AWS), APIs/microservices, observability tools; strong communication and AI-first experience.
Java, Spring Boot, Angular, TypeScript, SQL, AWS, Application Insights, Splunk, APIs, microservices, event-driven architectures, Identity and Access Management, AI frameworks, CI/CD, DevSecOps
2mo
Save
Mark Applied
Hide
Sr. Software Engineer (Hybrid)
Hartford or Charlotte or Short Hills
$123k-$157k/yr HybridFull Time
5+ YOE5+ years of experience designing and developing complex applications; Bachelor's preferred in CS/Engineering; strong .NET/C#, API, SQL; cloud, Azure, DevOps, and leadership skills.
C#, .NET, API development, SQL, Azure, Container Apps, API Management, App Gateway, Key Vault, App Services, Logic Apps, SQL MI, Infrastructure-as-Code, Bicep, ARM, Terraform, Angular, SAFe
4d
Save
Mark Applied
Hide
Senior Software Development Engineer (Java, Nest, React)
Texas or North Carolina or Scottsdale or Florida or Illinois or Hartford
$83k-$204k/yr RemoteFull Time
5+ YOE5+ years software development experience; strong backend and API development using Java Spring Boot, Node.js, GraphQL; Kubernetes, observability, API design, and cloud-native experience; GCP preferred; bachelor's degree preferred.
Java Spring Boot, Node.js, GraphQL, Kubernetes, Gradle, NestJS, GitHub Actions, Google Cloud Platform (GCP), GitHub Copilot, Claude Code, Cursor, Model Context Protocol (MCP), React, GitHub
1mo
Save
Mark Applied
Hide
Temporary Computer Science Developer
Worcester, Massachusetts, United States
$22/hr HybridPart Time, Temporary
Experience with web development including server-side languages (PHP), LAMP stack, Angular, and REST APIs; Drupal familiarity and professional page design preferred.
PHP, LAMP, Angular, REST APIs, Drupal
3w
Save
Mark Applied
Hide
Python AWS Developer
Hartford or Lafayette
$81k-$172k/yr HybridFull Time
6+ YOE6+ years Python backend development, REST API (FastAPI/Flask), strong SQL, hands-on AWS (Lambda,S3,SQS,DynamoDB,EC2,EKS), CI/CD and production support experience.
Python, FastAPI, Flask, AWS Lambda, Amazon S3, Amazon SQS, DynamoDB, Amazon EC2, Amazon EKS, Boto3, CloudWatch, Jenkins, GitHub Actions, Terraform, CloudFormation, OpenShift, Kubernetes, PostgreSQL, Aurora, Java, ReactJS, Spring Boot, SQL
5d
Save
Mark Applied
Hide
Dot Net Developer
Atlanta or Hartford or Raleigh or Richardson
$64k-$95k/yr OnsiteFull Time
.NET stack experience (.NET, ASP.NET, MVC, C#, WPF, WCF), Microsoft SQL Server and Entity Framework, strong OOP and API development skills, bachelor's degree or equivalent, agile experience preferred.
.NET, ASP.NET, MVC, C#, WPF, WCF, Microsoft SQL Server, Entity Framework, JavaScript
3d
Save
Mark Applied
Hide
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
3w
Save
Mark Applied
Hide
Software Developer
Newport, Rhode Island, United States
$59k-$102k/yr OnsiteFull Time
0+ YOEExperience building Microsoft Power Platform solutions (Power Apps, Dataverse, Power Automate), SharePoint and Azure integration, REST/JSON APIs, ALM, and ability to obtain Secret clearance.
Microsoft Power Apps, Power Fx, Canvas Apps, Model-Driven Apps, Dataverse, Power Automate, SharePoint, Microsoft Azure, REST APIs, JSON, Power Platform
2mo
Save
Mark Applied
Hide
Drupal Full Stack Developer Lead
Farmington or Connecticut or Florida or Georgia or Iowa or Illinois or Maryland or Massachusetts or North Carolina or New York or Ohio or Rhode Island or South Carolina or Tennessee or Virginia
$100k/yr OnsiteFull Time
5+ YOE5+ years Drupal development experience (Drupal 9 & 10), strong PHP/Twig/MySQL skills, HTML/CSS/JavaScript/Sass, Composer, Drush, Git, NPM, API integration, custom module and theme development, performance optimization.
Drupal 9, Drupal 10, Twig, CSS, JavaScript, HTML, Sass, PHP, MySQL, Composer, Drush, Git, NPM, Panels, Layout Manager, Paragraphs, Feeds
1w
Save
Mark Applied
Hide
Principal Software Engineer/Developer
Smithfield, Rhode Island, United States
$132k-$166k/yr OnsiteFull Time
3+ YOEBachelor's or Master's in CS/Engineering/IT/IS plus 5 years (Bachelors) or 3 years (Masters) experience; expertise in automation for UI, API, DB testing using Selenium, Cucumber, RestAssured, Karate, Java; CI/CD and DevOps tools experience.
Selenium WebDriver, Selenium Grid, TestNG, Java, JavaScript, JUnit, Cucumber BDD, RestAssured, Karate, Playwright, MongoDB, PostgreSQL, Redis, Kafka, Git, Jenkins, Jira, Qtest, DataDog, Maven, JMeter, Appium, Eclipse, IntelliJ IDEA
1mo
Save
Mark Applied
Hide
Forward Deployed Engineer
Framingham or United States
$143k-$215k/yr FieldFull Time
3+ YOE3+ years software engineering or technical implementation experience, Python and API proficiency, experience with LLMs/generative AI, cloud and enterprise integrations, strong communication, and ability to travel up to 75% domestically; U.S. work-authorization required.
Python, APIs, LLMs, Snowflake, Atlassian, SSO
2d
Save
Mark Applied
Hide
Senior Software Engineer I (Architect Release)
Framingham, Massachusetts, United States
$107k-$147k/yr OnsiteFull Time
7+ YOEBachelor's degree in a technical field and 7+ years in software, cloud, infrastructure, DevOps, or release engineering; 3+ years developing Java or C# web and API applications.
Azure, AWS, Java, C#, Kubernetes, Terraform, Bicep, CloudFormation, DevOps, Infrastructure-as-Code, CI/CD
2d
Save
Mark Applied
Hide
Sr Software Engineer (AI Team Lead)
Hartford or Saint Paul
$139k-$230k/yr OnsiteFull Time
5+ YOEBachelor’s degree in computer science or related STEM field, 5+ years of programming experience, and hands-on experience with LLM APIs, agentic frameworks, plugins, AWS AI orchestration, and MCP development.
Large Language Model APIs, Agentic Frameworks, Claude, SAGE, AIDLC, AWS Agent Core, Model Context Protocol (MCP), AWS
4w
Save
Mark Applied
Hide
Sr. ERP Integration Engineer
Marlborough, Massachusetts, United States
$100k-$132k/yr HybridFull Time
8+ YOE8+ years SAP integration experience (5+ yrs PI/PO and Integration Suite), Java/Groovy/XSLT development, API and iFlow design, SAP and non‑SAP integrations, troubleshooting, and strong communication skills.
SAP Integration Suite, SAP PI/PO, SAP CPI, SAP B2B, SAP API management, S/4HANA, Java, Groovy, XSLT, Ariba CIG, Salesforce, Eclipse, Postman, SAP BODS, SAP SLT, Event Mesh, Integration Advisor, FILE, RFC, IDOC, JDBC, SOAP, REST, SFTP, Proxy, BAPI, EDI, JMS, OAuth2.0, SAML, X.509, Basic Auth
1mo
Save
Mark Applied
Hide
Integration Engineer II (Webster, MA, US)
Webster, Massachusetts, United States
$100k-$125k/yr OnsiteFull Time
3+ YOEBachelor's in CS/IT/Software Engineering required, 3+ years software development experience, API Management and microservices experience, 2+ years with REST/SOAP/MQ and Java/J2EE/Spring, familiarity with Oracle or SQL Server.
Java, J2EE, JSON, WSDL, XML, Spring, Spring Boot, Spring MVC, Oracle, SQL Server, RESTful, SOAP, MQ, JAX-RS, RabbitMQ, Kafka, ActiveMQ, MongoDB, DynamoDB, Eclipse, Git, Gradle, Sonar, Jenkins, Jira, Artifactory, AWS, Google, Azure, API Management, Microservices
2mo
Save
Mark Applied
Hide
Principal Software Development Engineer in Test
Mansfield, Massachusetts, United States
$152k-$190k/yr RemoteFull Time
8+ YOE8–15 years SDET/automation engineering experience; strong Playwright with C#/.NET; API and database testing; CI/CD and Docker experience; leadership and mentoring.
Playwright, C#/.NET, REST API, SQL, Docker, AWS, CI/CD, Git, Bitbucket, Jira, Confluence
Explore Jobs