64 sr api developer jobs at 26 companies in Westfield, MA
2mo
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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
4w
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Sr Software Engineer
Hartford or St. Paul
$139k-$230k/yr HybridFull Time
6+ YOEBachelor's in CS or STEM, 6+ years software engineering, leadership experience, cloud and API development experience, proficiency with CI/CD, observability, databases, and automated testing.
Claude, GitHub Co-Pilot, AWS (Serverless/EKS), AWS CDK, Terraform, React.js, Node.js, JavaScript, TypeScript, Python, Kafka, DB2, MySQL, PostgreSQL, MongoDB, DynamoDB, Dynatrace, ELK, OpenTelemetry, NUnit, XUnit, Moq, Jest, Cypress, Git, GitHub, CloudBees Jenkins, Jenkins Open Source, Microsoft Azure, Microsoft Azure DevOps, OAuth 2.0, OpenID Connect (OIDC), Jira, Rally
4w
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Sr Software Engineer
Hartford or Saint Paul
$139k-$230k/yr OnsiteFull Time
6+ YOEBachelor's degree or equivalent, 6+ years software engineering experience, cloud and API proficiency, experience leading teams, strong communication and problem-solving skills.
Claude, GitHub Co-Pilot, AWS, EKS, Azure, REST, GraphQL, Terraform, AWS CDK, React.js, Node.js, JavaScript, TypeScript, Python, Kafka, DB2, MySQL, PostgreSQL, MongoDB, DynamoDB, NUnit, XUnit, Moq, Jest, Cypress, Git, GitHub, CloudBees Jenkins, Jenkins, Azure DevOps, OAuth 2.0, OpenID Connect, Dynatrace, ELK stack, OpenTelemetry, Jira, Rally
2w
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Sr. Software Engineer
Windsor, Connecticut, United States
$90k-$125k/yr HybridFull Time
5+ YOEBachelor's degree, 5+ years professional experience with Java/.NET, RESTful APIs, enterprise design, security practices, database technologies, Agile experience, strong communication and troubleshooting skills.
T-SQL, SSMS, Query Analyzer, ETL, Java, .NET, Angular, Oracle, SQL Server, PostgreSQL, Cassandra, JavaScript
1mo
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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
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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
3d
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Sr AI/ML Engineer Remote Nationwide or Hybrid in MN or DC or CT
Hartford or Minneapolis or Washington or United States
$120k-$215k/yr RemoteFull Time
8+ YOEBachelor's or equivalent, 8+ years software engineering experience, 2+ years building/deploying AI/ML systems, experience with generative AI and RAG, API/microservices experience, strong communication and problem-solving.
GPT-based models, Retrieval-Augmented Generation (RAG), MLOps, API, microservices
4d
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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
3w
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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
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
3w
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Sr. Test Automation Engineer (Hybrid)
Hartford, Connecticut, United States
$101k-$137k/yr HybridFull Time
8+ YOE8+ years in software testing/automation, strong UI and REST API automation experience, proficiency with C#, Java, .NET, SQL, Azure DevOps, CI/CD, BDD/TDD, and AI-assisted test tooling; US work authorization required.
Azure DevOps, Azure, C#, Java, .NET, SQL, BDD, TDD, MS Test, TestNG, JUnit, NUnit, GIT, Selenium WebDriver, Copilot
2mo
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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
1mo
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Senior Software Engineer - Platform and Infrastructure
Glendale or Seattle or Bristol
$142k-$190k/yr HybridFull Time
5+ YOEBachelor's degree in computer science or related field, 5+ years technical experience, hands-on ML methods, production software development, API integration, defensive design/cybersecurity, and strong technical communication.
AWS, Kinesis, Dynamo, ElastiCache, Lambda, S3, ECS, Aurora, Bedrock, JavaScript, TypeScript, Swift, Kotlin, Terraform, CloudFormation, CloudWatch, Datadog
3mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
1mo
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Drupal and Integrations Developer
Northampton, Massachusetts, United States
$98k-$133k/yr OnsiteFull Time
5+ YOEBachelor's in CS/Engineering required; 5+ years Drupal backend and integrations experience; knowledge of Drupal 10+, REST APIs, JSON, OAuth; proficiency with Drupal, JavaScript, PHP, Composer, and Git; preferred master's and 8+ years with WordPress and API/ETL work.
Drupal 10+, REST APIs, JSON, OAuth, Salesforce, Slate, Workday, Technolutions Slate CRM, JavaScript, React, PHP, Composer, Git, GA4, Pantheon, WordPress, Salesforce Marketing Cloud, CI/CD, ETL
1mo
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Senior Software Engineer
Glendale or Bristol
$149k-$199k/yr HybridFull Time
5+ YOE5+ years industry experience; proficiency in Java/Kotlin/Python/JavaScript, microservices, REST APIs, AWS (S3,Lambda,EC2), databases, Kafka; BS in CS preferred.
Java, Kotlin, Python, JavaScript, AWS, S3, Lambda, EC2, SQL, MongoDB, OpenSearch, Apache Kafka
1w
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Senior Software Test Engineer
Holyoke, Massachusetts, United States
$120k-$160k/yr HybridFull Time
5+ YOEBachelor's in CS/Engineering or equivalent,5+ years software testing with automated web/API testing,Java plus Python/JavaScript,Playwright/Selenium/Cypress,CI/CD (Jenkins),Git,Jira,SQL,and mentoring experience.
Playwright, Selenium, Cypress, Cucumber, Java, Python, JavaScript, SQL, Jenkins, Docker, Kubernetes, ECS, Terraform, AWS, Git, Jira, JUnit, TestNG, Postman
3mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
1mo
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Principal Software Engineer
Charlotte or Chicago or Columbus or Hartford
$168k-$253k/yr HybridFull Time
12+ YOE12+ years enterprise application development experience, Bachelor’s in CS or related, expertise in Java, Spring Boot, Angular/TypeScript, SQL, cloud (AWS preferred), API/microservices/event-driven architectures, observability tools, and AI-assisted development; strong communication and strategic leadership.
Java, Spring Boot, Angular, TypeScript, SQL, AWS, Application Insights, Splunk
3w
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Senior Sales Engineer - Enterprise
Boston or Charlotte or Hartford or New Haven or New York or Raleigh or United States
$194k-$291k/yr HybridFull Time
5+ YOE5+ years in software pre-sales, hands-on SQL and technical skills (Python, APIs, R), track record closing enterprise deals, strong communication and business acumen.
Python, SQL, APIs, R, Google Analytics 4, Adobe Analytics, Mixpanel, Tableau, Looker, Power BI