48 applications development engineer jobs at 25 companies in Tonawanda, NY
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Applications & Integration Engineer
Buffalo, New York, United States
$70k-$86k/yr OnsiteFull Time
3+ YOEBachelor’s in computer science or information management systems; 3 years’ experience in applications development or related role; experience with integration/workflow automation platforms; familiarity with Boomi, Intapp Integration Builder, Intapp Open a plus; Azure and Power Platform a plus.
Boomi, Intapp Integration Builder, Intapp Open, Microsoft Azure, Power Platform, Power Apps, Power Automate, Power BI
2mo
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Senior iOS Developer – Banking Applications
Buffalo, New York, United States
$97k-$162k/yr HybridFull Time
3+ YOESenior iOS Developer with strong UIKit, SwiftUI, Objective-C, Swift; experience in fintech, secure development, and automated testing; 5+ years or 3+ years with Bachelor’s. Hybrid work in Buffalo, NY.
UIKit, SwiftUI, Objective-C, Swift, Tuist, XCTest, CI/CD
1mo
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Scientist III, Software Engineer, Upstream Process Development
Grand Island, New York, United States
$87k-$116k/yr OnsiteFull Time
3+ YOE3+ years developing and deploying production Python applications (Dash/Flask), CI/CD pipelines, cloud (AWS/Azure/GCP), Docker/Kubernetes, Microsoft SQL Server, and Linux/Unix administration.
Python, Dash, Flask, CI/CD, GitHub Actions, Azure DevOps, GitLab CI, Jenkins, AWS, Azure, GCP, Docker, Kubernetes, Microsoft SQL Server, Linux/Unix, OPC UA, OPC DA, MQTT, SCADA, historian systems
3mo
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Machine Learning Applications and Compiler Engineer, LPX - New College Grad 2026
Toronto or Canada
$105k-$185k/yr HybridFull Time
0+ YOEMS or PhD in CS/EE or related field, or equivalent experience; strong systems programming (C/C++, Rust); LLVM/MLIR experience; ML frameworks (TensorFlow, PyTorch); OO understanding of GPUs and compilers; ability to collaborate across hardware and software teams.
C++, Rust, LLVM, MLIR, TensorFlow, PyTorch, ONNX
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Senior Optimization Engineer
Stoney Creek, Ontario, Canada
OnsiteFull Time
5+ YOEBachelor's in Electrical Engineering (electricity markets); 5+ years with optimization tools (AMPL, AIMMS, CPLEX, Gurobi); 3+ years programming and Linux/AIX; 2+ years developing power system applications; Canadian work authorization and English proficiency.
AMPL, AIMMS, CPLEX, Gurobi, Linux, AIX
2w
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Applied AI Platform Engineer, Application Development
Toronto, Ontario, Canada
OnsiteFull Time
5+ YOEBachelor's in CS or related,5+ years in software/data/platform/cloud/ML/LLMOps,proficiency with Python,SQL,Databricks,Azure,MLflow,CI/CD,Git,and production support for AI workloads.
Python, SQL, FastAPI, Databricks, MLflow, Model Serving, Vector Search, Azure AI Document Intelligence, Azure OpenAI Service, Mosaic AI SDK, LangGraph, LangChain, Terraform, Git, Azure Monitor, Log Analytics, Entra ID, Key Vault, Azure Service Bus, React, Blazor
2w
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Senior Application Developer, IT
Toronto, Ontario, Canada
$108k-$128k/yr HybridFull Time
7+ YOE7+ years application development experience, strong COBOL/DB2/IBM iSeries skills, mortgage administration knowledge, UML and OOP understanding, excellent communication and debugging skills.
COBOL, DB2, IBM iSeries, UML, .NET, Angular, Blazor, REST, SOA, Entity Framework, Microsoft SQL Server
1w
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Fullstack Developer
Toronto, Ontario, Canada
$90k-$120k/yr OnsiteFull Time
Experience building Angular frontend applications, integrating with backend APIs and AWS, mentoring junior developers, and contributing to system architecture for enterprise web apps.
Angular, AWS
3w
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Software Engineer III
Buffalo, New York, United States
OnsiteContract
6+ YOE6+ years systems analysis and application development experience; strong expertise in C#, VB.NET, .NET, Angular, TypeScript, SQL Server, SSIS, and GitLab; experience leading projects and mentoring developers.
C#, VB.NET, .NET, Angular, TypeScript, SQL Server, SSIS, GitLab, Microsoft Azure, Azure Data Factory, Terraform, Python, Microsoft Power BI, Automic, Jira, Zephyr, ServiceNow
3w
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Senior Developer - Uipath (267041)
Toronto, Ontario, Canada
OnsiteFull Time
7+ YOE7+ years software development with RPA production support; experience with UiPath/Pega OpenSpan; strong C#, .NET, JavaScript, API, CI/CD skills; AI application experience in enterprise/IT operations; degree in CS or related.
UiPath, Pega OpenSpan, ServiceNow, GEMS, C#, .NET, JavaScript, APIs, GitHub, Bitbucket, Jenkins
1mo
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Software Developer
Tonawanda, New York, United States
$90k-$132k/yr OnsiteFull Time
1+ YOEBachelor's in a technical discipline preferred. Experience administering Windows Server 2019/2022 and Microsoft SQL Server 2019/2022, developing applications in Visual Basic 6 and C#, Excel VBA scripting, Windows batch scripting, and supporting HMI/PLC integrations for industrial fill operations.
Windows Server 2019, Windows Server 2022, Microsoft SQL Server 2019, Microsoft SQL Server 2022, Microsoft Visual Basic 6, C#, Microsoft Excel, Microsoft Excel VBA, Windows batch scripting, iFIX, Allen Bradley PLC, ControlLogix, HMI
1mo
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Front End Application Developer
Toronto, Ontario, Canada
OnsiteFull Time
8+ YOE8+ years front-end development experience with strong React skills, Node.js, containerization on OpenShift, exposure to cloud platforms (AWS/Azure/GCP), Agile experience, and ability to build complex, production-grade applications.
React, Node.js, OpenShift, AWS, Azure, GCP, Angular, Java, Spring Boot, JavaScript, AI Code Assistant
2w
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Staff Software Engineer, Stripe Dashboard
Toronto or United States or South San Francisco
$271k-$407k/yr HybridFull Time
10+ YOE10+ years building large-scale user-facing web applications, leading cross-functional engineering projects, deep frontend/full-stack expertise, performance engineering, and strong communication.
React
6d
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Senior Software Engineer, Operations
North York or Toronto or Waterloo
$90k-$140k/yr HybridFull Time
7+ YOE7+ years Java application support/development with incident management and on-call; experience with monitoring, automation, cloud (AWS), DevOps tools; Canadian enhanced reliability security clearance required.
Java, JavaScript, HTML, XML, CSS, Java Enterprise Edition (J2EE), Servlet, JDBC, JSP, Spring, ReactJS, Angular, Kubernetes, Docker, OWASP, SOAP, REST API, JSON, Spring Boot, SQL, Oracle, POSTGRES, Jenkins, Artifactory, Bitbucket, Git, Gradle, Maven, CDD, Ansible, MFA, AWS, Confluence, JIRA, Service Now, MS Teams, Kafka, WebSphere, WebLogic
1w
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Senior Java Developer (Kafka/API)
Toronto or Quebec
$90k-$140k/yr HybridFull Time
5+ YOE5+ years Java application development experience with REST APIs, Kafka, DevOps tools; strong problem-solving, experience with Kubernetes/Docker, cloud and databases; Reliability Status Clearance required; bilingual (fr) for Quebec roles.
Java, Docker, Kubernetes, Kafka, Jenkins, Artifactory, BitBucket, Gradle, Continuous Delivery Director, Ansible, WebSphere, DB2, Open API, Swagger, Spring Boot, MongoDB, Postgres, Okta, AWS, Maven, KSQL, SonarQube
1mo
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Lead Software Engineer AI (Staff Engineer)
Eagan or Frisco or Toronto or Ann Arbor
$127k-$237k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent, 5+ years full-stack experience building scalable cloud applications; expertise in C#/.NET, backend architecture, APIs, distributed systems, and AI integration (LLMs, OpenAI/Anthropic); front-end skills (JavaScript/Typescript, Angular/React); AWS, PostgreSQL/SQLServer, CI/CD.
C#, .NET, ASP.NET Core, FastAPI, SQLServer, PostgreSQL, AWS, Vercel, JavaScript, Typescript, HTML, CSS, Angular, React, GitHub Actions, OpenAI, Anthropic, LLMs
1mo
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Sr. Consultant, Back End Developer- Java/Springboot/System Design
Toronto, Ontario, Canada
HybridFull Time
10+ YOE10+ years designing and developing applications using Java and Spring Boot; strong system design, microservices, SQL/RDBMS, REST/gRPC, containerization, CI/CD, and technical leadership; bachelor’s in CS or equivalent.
Java, Spring Boot, RDBMS, SQL, J2EE, SOAP, REST, gRPC, Quarkus, JSON, Docker, Podman, Maven, Gradle, Postman, JUnit, Jenkins, Git, OpenAPI, Swagger, OAuth2, JWT, Python, LLM, Vector Databases, RAG
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Senior Front End Developer
Toronto, Ontario, Canada
$100k-$142k/yr HybridFull Time
Bachelor's in CS or equivalent; proven experience with React, TypeScript, and React Native; GitHub/GitHub Actions; automated testing (unit/API/UI); designing secure, scalable applications; Agile experience and strong communication.
React, React Native, TypeScript, GitHub, GitHub Actions, Kotlin, Swift, Android
2w
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Senior Full Stack Developer
Toronto, Ontario, Canada
$120k-$145k/yr HybridFull Time
5+ YOE5+ years building production web applications; strong JavaScript skills; experience with TypeScript, Node.js, Next.js; front-end framework experience (React/Angular); knowledge of web architecture and core web principles.
JavaScript, TypeScript, Node.js, Next.js, React, Angular, Gatsby, Remix.js, Wordpress, AEM, Sitefinity, AWS, Google Cloud, Azure, GraphQL, ElasticSearch, Serverless
1mo
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Senior Full-Stack Developer
Toronto or Canada
$120k-$160k/yr RemoteFull Time
6+ YOE6+ years building production full‑stack web applications with production experience in Angular, TypeScript, and C#/.NET; Bachelor’s in CS or equivalent experience; ability to own features end‑to‑end and work in a remote, collaborative environment.
Angular, TypeScript, RxJS, NgRx, Angular Material, Tailwind CSS, C#/.NET, Entity Framework Core, PostgreSQL, SQL Server, Redis, Firestore, Google Cloud Platform, Kubernetes, Docker, Terraform, Pub/Sub, Microsoft Azure DevOps, Git, Webpack, Cypress, Playwright, Grafana, REST APIs