28 sr api developer jobs at 18 companies in Batavia, NY
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Sr. Software Engineer
Rochester or Alpharetta
OnsiteFull Time
5+ YOE5+ years building Java applications; strong Spring Boot and REST API experience; web technologies (HTML,CSS,JavaScript/TypeScript); problem solving and collaboration in Agile teams.
Java, Spring Boot, RESTful APIs, HTML, CSS, JavaScript, TypeScript, Angular, MongoDB, Azure Cosmos DB, Spock Framework, JSON
3w
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Software Engineer II
Buffalo, New York, United States
OnsiteContract
5+ YOE5+ years application development experience with strong Java and Spring Boot skills, Azure development (Functions, Key Vault, Managed Identities), RESTful API design, and mentoring experience; Associate's degree or equivalent.
Java, Spring Boot, Azure Functions, Azure Key Vault, Managed Identities, Azure Monitoring, OAuth 2.0
2mo
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Software Development Engineer
Rochester, New York, United States
$93k-$143k/yr HybridFull Time
5+ YOE5+ years in software development; design and delivery of distributed systems; REST APIs and microservices; C#/.NET and JavaScript (React); cloud and on-prem/desktop environments; Docker and CI/CD.
Docker, Container Orchestration, Azure, Azure DevOps, REST, Microservices, C#, C++, JavaScript, React, Git, Visual Studio, SQL, MySQL, NoSQL
1mo
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Senior Application Engineer (Full-Stack)
Ann Arbor or Rochester
$100k-$140k/yr HybridFull Time
5+ YOE5+ years building and shipping production web applications; strong TypeScript, React, and Node experience; Rust backend interest; hands-on LLM APIs and AI development tools; Temporal and Athena API integration experience; healthcare data/EHR familiarity preferred.
TypeScript, React, Node, Rust, LLM APIs, Temporal, Athena, FHIR, HL7, EHR
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
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Lead Software Engineer - ServiceNow
Buffalo, New York, United States
$116k-$194k/yr HybridFull Time
5+ YOE5+ years systems analysis/application development experience (or equivalent), expert ServiceNow platform development, workflow and integration design, CI/CD and source-control experience, strong communication and problem-solving skills.
ServiceNow, Flow Designer, Service Catalog, Jira, CI/CD, APIs, SDLC
2mo
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Sr. Design Engineer (Buffalo, NY, United States, 14043)
Buffalo, New York, United States
$107k-$115k/yr HybridFull Time
5+ YOEBachelor's in Mechanical or Aerospace Engineering; PE license or ability to obtain; 5+ years design experience; FEA experience; knowledge of API, MIL, SAE, ANSI, ASME, ASTM; CAD skilled (Inventor, AutoCAD); fabricating and assembly of heavy industrial products.
Autodesk Inventor, AutoCAD, Microsoft Office, Microsoft Project, FEA software
2mo
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Sr. Manager, Software Development
Irvine or Toronto or Buffalo
$159k-$270k/yr HybridFull Time
12+ YOE7+ MgmtBS/MS/MBA/PhD in CS or related; 12+ years software engineering experience, 7+ years engineering leadership; enterprise SaaS, cloud (GCP/Azure/AWS), Agile, microservices, APIs, AI/LLM experience (Gemini/Claude/Copilot); strong people and cross-functional skills.
C++, C#, Python, PostgreSQL, SQL, No SQL Databases, Front End Web, Web Services, event-driven microservices, Microfrontends, SPAs, Mulesoft, Tibco, Workato, Gemini (Google), Claude (Anthropic), Microsoft Copilot, APIs, SAP, GCP, Azure, AWS, CI/CD pipelines, infrastructure as code
3mo
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Backend Software Engineer
Pittsford, New York, United States
$125k-$155k/yr RemoteFull Time
5+ YOEBachelors degree and 5+ years software engineering experience; proficiency in Python, APIs, React/JS/TypeScript, Git, CI/CD, cloud platforms (AWS/GCP), containerization, and experience with financial or data-intensive systems.
Python, React, JavaScript, TypeScript, Git, AWS, GCP, CI/CD
1w
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Oracle Senior OFSAA Developer - 00069997231
Buffalo, New York, United States
$83k-$113k/yr OnsiteFull Time
10+ YOE10+ years IT experience with Oracle OFSAA and PBSMCS, OFSAA certification mandatory; strong SQL, shell scripting, REST/OAuth integrations, production support, release management, and troubleshooting skills.
Oracle OFSAA, Oracle Profitability & Balance Sheet Management Cloud Service (PBSMCS), REST API, OAuth, ETL/ELT, SQL, Shell Scripting, Git, GitLab, Jira, Oracle Cloud Infrastructure (OCI), Python
1w
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Oracle Senior OFSAA Developer - 00069997231
Buffalo, New York, United States
$83k-$113k/yr OnsiteFull Time
10+ YOE10+ years IT experience with Oracle OFSAA and PBSMCS, production support, integrations, REST/OAuth, SQL and shell scripting; OFSAA certification required.
Oracle OFSAA, Oracle Profitability & Balance Sheet Management Cloud Service (PBSMCS), Oracle Cloud Infrastructure (OCI), REST API, OAuth, ETL/ELT, SQL, Shell Scripting, Git, GitLab, Jira, Python
1w
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Lead Full Stack Engineer
Rochester or Irvine or Frisco or United States
$165k-$200k/yr RemoteFull Time
8+ YOE8+ years software/platform engineering with senior technical lead experience on multi-vendor AWS cloud modernization programs; hands-on AWS services, Python/Node.js, Terraform, API design, and strong stakeholder communication.
Lambda, Step Functions, ECS Fargate, API Gateway, DynamoDB, S3, EventBridge, Bedrock, Python, Node.js, JavaScript, Terraform, REST, GraphQL, SAS, R
1mo
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Workday Integrations and Agent Developer
Buffalo, New York, United States
RemoteFull Time, Part Time
7+ YOE7+ years implementing Workday integrations (EIB, Studio, Core/Cloud Connectors, Orchestrate, Extend), experience with Workday Recruiting/HiredScore/Paradox, RESTful APIs, CI/testing, HCM workflows, HR/payroll data structures, strong communication, and U.S. work authorization.
EIB, Core Connectors, Cloud Connect, Workday Studio, BIRT, Boomerang, Extend, Orchestrate, Workday Recruiting, HiredScore, Paradox, RESTful Web Services, Workday AI/Extend, Workday Security, HCM-delivered APIs, Continuous Integration
1w
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Oracle Senior OFSAA Developer - 00069997231
Buffalo, New York, United States
$83k-$113k/yr OnsiteFull Time
10+ YOE10+ years IT experience with Oracle OFSAA and PBSMCS; mandatory OFSAA certification; production support, integrations, REST APIs, SQL, shell scripting, Git/GitLab, and strong troubleshooting skills.
Oracle OFSAA, Oracle PBSMCS, PFTCS, FTPCS, Oracle Cloud Infrastructure (OCI), REST API, OAuth, ETL/ELT, SQL, Shell Scripting, Git, GitLab, Jira, Python
1w
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Product Engineer – Enterprise Analytics Services
Bengaluru or Rochester or Fairport
HybridFull Time
6+ YOE6+ years building enterprise, cloud-native software with APIs, event-driven systems, testing automation, Agile/SAFe practices, and AI-assisted engineering; strong architecture and mentoring skills.
SAFe 6.0, APIs, Agile Scrum
1mo
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Performance Engineer
Cheektowaga, New York, United States
$100k-$115k/yr OnsiteFull Time
7+ YOE8+ years in SDLC/TDLC with 6+ years in performance testing; experience with LoadRunner/JMeter/Neoload; Java or Python; API REST/SOAP testing; CI/CD and monitoring tools; metrics and dashboarding experience.
LoadRunner, LoadRunner Cloud, JMeter, Neoload, Java, Python, AppDynamics, CloudWatch, SOAP UI, Postman, Jenkins, Docker, Kubernetes
1mo
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Workday Integrations and Agent Developer
Buffalo, New York, United States
$129k-$163k/yr OnsiteFull Time
7+ YOEMinimum 7 years experience with Workday integration types (EIB, Core Connectors, Cloud Connect, Workday Studio, BIRT, Boomerang, Extend, Orchestrate); experience with Workday Recruiting, HiredScore, Paradox; RESTful APIs; HCM API automation; strong communication and issue triage skills. Must be authorized to work in the U.S. without sponsorship.
EIB, Core Connectors, Cloud Connect, Workday Studio, BIRT, Boomerang integrations, Extend, Orchestrate, Workday Recruiting, HiredScore, Paradox, RESTful Web Services, HCM-delivered APIs, Workday AI/Extend, Continuous Integration
1w
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Applied AI Engineer
Batavia or Ithaca or Rochester or Buffalo or Wyomissing
$105k-$145k/yr HybridFull Time
5+ YOEBachelors in CS/AI/Data or equivalent,5+ years in software engineering/data/AI,proficiency in Python and API integration,experience with LLMs,ML systems,cloud AI services,and on-call support availability.
Python, Azure, AWS, Google Cloud Platform, Azure Machine Learning, MLflow, Databricks, SageMaker, Vertex AI, Microsoft Foundry, Azure OpenAI, Copilot Studio
1w
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Product Engineer – Enterprise Analytics Services
Bengaluru or Rochester
HybridFull Time
6+ YOE6+ years building enterprise, cloud-native software with APIs, event-driven systems, testing automation, Agile/SAFe workflows, and AI-assisted engineering; strong communication and architecture skills.
SAFe 6.0
2w
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QA / QC Engineer
The Woodlands or Tonawanda
$77k-$133k/yr OnsiteFull Time
10+ YOE10+ years QA/QC experience in petrochemicals/industrial gases; BSc in mechanical/metallurgical/welding engineering or equivalent; knowledge of ASME/API/ASTM, welding, NDE; AWS CWI and NDE Level II preferred; perform root cause analysis.