207 system developer jobs at 126 companies in Tonawanda, NY

1mo
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Power System Studies Engineer - Toronto, Ontario, Canada
Winnipeg or Calgary or Ottawa or Edmonton or Toronto or Vancouver or San Francisco or Los Angeles or Boston or Orlando or Dallas or Fort Worth
$73k-$105k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
4+ YOEMaster's in Electrical Engineering, 4+ years system-studies experience on utility-scale renewables, proficiency with PSS/E, ETAP, PSCAD, knowledge of IEC/IEEE/CIGRE, PE/PEng preferred, willingness to travel within North America.
PSS/E, ETAP, PSCAD, Python
1mo
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Sr. Consultant, Back End Developer- Java/Springboot/System Design
Toronto, Ontario, Canada
HybridFull Time
CIBC
CIBCToronto Stock Exchange: CM: Provides personal, commercial, and investment banking and wealth management.
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
3w
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Project System Design Specialist
Toronto, Ontario, Canada
$117k-$150k/yr OnsiteFull Time
Hitachi
HitachiTokyo Stock Exchange: 6501: Global provider of digital systems and social infrastructure solutions.
6+ YOEBachelor's in engineering/CS, 6–10 years software-based system development experience, 3–5 years URS/CBTC system expertise, experience leading technical teams, knowledge of systems lifecycle and software engineering practices.
DOORS, Polarion, Melody Advance
1w
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Fullstack Developer
Toronto, Ontario, Canada
$90k-$120k/yr OnsiteFull Time
Virtusa
Virtusa: Digital engineering and IT business transformation services provider.
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
1w
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AI Developer (LLM & Agentic Systems)
Toronto or Calgary or Vancouver
$94k-$138k/yr OnsiteFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering, design, and environmental consultancy services globally.
5+ YOE5+ years software development experience with 2+ years designing and deploying LLM or agentic AI systems; degree in CS/software engineering; experience with embeddings, vector search, RAG, cloud-native development (Azure), and CI/CD.
LLMs, RAG, embeddings, vector search, Python, FastAPI, Node.js, Azure, SPARQL, Cypher, Docker, Kubernetes, Git, CI/CD
1mo
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Software Developer
Tonawanda, New York, United States
$77k-$112k/yr OnsiteFull Time
Linde
LindeNYSE: LIN: Supplies industrial gases and develops gas processing technologies.
7+ YOEBachelor's in CS or related, 7+ years software development, full-stack expertise (frontend SPA, backend Python), system architecture, relational DB design, mentorship, and willingness to travel up to 20%.
Vue.js, Python, FastAPI
3w
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Lead Software Engineer
Buffalo, New York, United States
$116k-$194k/yr HybridFull Time
M&T Bank
M&T BankNYSE: MTB: Provides retail, commercial, and wealth management banking services.
5+ YOEExpert-level software development with SDLC adherence, code reviews, coaching, secure/resilient coding, and 5+ years systems analysis or application development experience with degree or equivalent experience.
Software Development Lifecycle (SDLC)
1mo
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Senior Software Developer - Automation Systems
Toronto, Ontario, Canada
$150k-$200k/yr OnsiteFull Time
Xanadu
Xanadu: Develops fault-tolerant quantum computers and open-source software using photonics.
7+ YOEBSc required, 7+ years engineering experience, technical leadership, production systems on AWS, proficiency with GitHub, Python, Rust, Postgres, Docker, Terraform; strong system design and CI/CD experience.
GitHub, Python, Rust, Postgres, Docker, Terraform, AWS, Claude, Claude Code, Codex, Gemini CLI
2mo
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Staff Backend Engineer
Toronto, Ontario, Canada
$150k-$160k/yr HybridFull Time
HelloFresh
HelloFreshFrankfurt Stock Exchange: HFG: Global meal kit delivery service and food solutions provider.
Strong experience designing scalable microservices and distributed systems; hands-on with Docker, Kubernetes, CI/CD, relational and document databases; production backend development in Golang, Python, or Java; experience integrating AI/LLM workflows preferred.
Kafka, RabbitMQ, Docker, Kubernetes, CI/CD, PostgreSQL, MySQL, MongoDB, LLM, Golang, Python, Java
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Senior Full Stack Developer
Toronto, Ontario, Canada
OnsiteFull Time
Royal Bank of Canada
Royal Bank of CanadaTSX: RY: Provides personal, commercial, and investment banking services worldwide.
4+ YOE4+ years developing and shipping production code; front-end with HTML/CSS, React, JavaScript/TypeScript; back-end with Python and relational databases (PostgreSQL); APIs, authentication, Git, CI/CD, Ansible, automated testing, ML/AI frameworks; experience building scalable, fault-tolerant systems.
HTML/CSS, React, Front-End Framework/Libraries, JavaScript, TypeScript, Python, PostgreSQL, Git, CI/CD, Ansible, Machine Learning/AI Frameworks, N8N, Tines, Databricks, Jira
1mo
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Software Update Platform Developer
Oakville or Waterloo or Ottawa
$96k-$146k/yr HybridFull Time
Ford Motor Company
Ford Motor CompanyNYSE: F: Ford manufactures, sells, and services vehicles and mobility solutions.
3+ YOEBachelor's in Computer/ Electrical Engineering or Computer Science required; 3+ years software development experience (embedded/mobile/consumer electronics), 3+ years C/C++ experience, RTOS and multi-threaded embedded systems experience; Master's and additional skills preferred.
C/C++, Java, Git, repo, Make, GCC, G++, GDB, RTOS
2w
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Staff Software Engineer, Capital
Buffalo, New York, United States
$165k-$190k/yr OnsiteFull Time
ACV Auctions
ACV AuctionsNYSE: ACVA: Digital marketplace for buying and selling wholesale used vehicles.
8+ YOEBS or equivalent, 8+ years experience, expert Python, distributed systems and event-driven design, CI/CD and deployment automation, AWS/SQL/Kafka, testing and debugging distributed systems, financial systems experience.
Python, AWS, SQL, Kafka, Git, GitHub Actions, Jenkins, TeamCity, Datadog, CloudWatch Logs, Docker, Kubernetes, CI/CD
1mo
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Senior Software Engineer II, Cloud Data Ingestion & Transformation
Toronto, Ontario, Canada
$187k-$300k/yr HybridFull Time
Braze
BrazeNASDAQ: BRZE: Platform for personalized customer engagement and cross-channel messaging.
6+ YOE6+ years full-stack development experience, strong backend focus; technical leadership and architectural experience; knowledge of data pipelines, distributed systems, and modern web stacks.
Kafka, Airflow, Sidekiq, SQS, RabbitMQ, Python, Django, React, Ruby on Rails, Snowflake
2mo
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Senior AI developer
Toronto, Ontario, Canada
$128k-$171k/yr HybridFull Time
Aon
AonNYSE: AON: Global professional services firm providing risk and people solutions.
7+ YOEBachelor's in CS/CE or equivalent, 7+ years Python engineering (2–3 years building LLM/GenAI/agentic systems), hands-on RAG and prompting, familiarity with vector DBs and MLOps, Azure DevOps/Jira/Confluence experience, must be authorized to work in Canada (no sponsorship).
Python, PathWise, Azure DevOps, Jira, Confluence, LLM, GenAI, RAG
1w
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Senior Software Engineer, AI Platform
Toronto, Ontario, Canada
$118k-$158k/yr HybridFull Time
eBay
eBayNASDAQ: EBAY: Global online marketplace for buying and selling diverse products.
5+ YOE5+ years building and operating backend systems; proficiency in Java/Go/Python; experience with distributed systems, databases, cloud platforms, and strong system design and communication skills.
Java, Go, Python, SQL, NoSQL, AWS, GCP, Azure
2mo
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Software Engineer
Toronto, Ontario, Canada
HybridFull Time
Opendoor
OpendoorNASDAQ: OPEN: Online platform for buying and selling residential real estate.
Deep software engineering experience with production systems; strong fundamentals in at least one language; experience with relational databases; willing to relocate to listed cities (Miami, Toronto, or Seattle).
Relational databases, General-purpose programming languages, AI tools
5d
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Lead Software Engineer, AI
Eagan or Frisco or Toronto or Ann Arbor
$127k-$237k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
Extensive experience architecting and shipping production AI/LLM-powered systems, strong backend and distributed systems skills, production reliability and observability experience, and ability to mentor senior engineers.
LLM APIs, AWS Bedrock AgentCore, Headspace
1mo
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Software Engineer
Toronto, Ontario, Canada
HybridFull Time
Magical
Magical: Automates healthcare administrative workflows using agentic AI.
Experience building backend or full-stack production systems; strong fundamentals in databases, APIs, queues, async workflows, and observability; comfortable with TypeScript/Node and integrating AI/LLMs into production.
TypeScript, Node, LLMs
3mo
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Senior Platform Systems Engineer
Toronto, Ontario, Canada
$160k-$180k/yr HybridFull Time
Bettermode
Bettermode: Builds branded online community platforms for customer engagement.
5+ YOEExtensive experience with Kubernetes/EKS, Terraform/OpenTofu, AWS, Cloudflare; production systems engineering; Go or Rust; security/compliance; DR and incident response.
Kubernetes, Terraform, AWS, Cloudflare, Go, Rust, TypeScript, PostgreSQL, MongoDB, ClickHouse, Pinot, Aurora PostgreSQL, GitOps
3w
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Senior Software Engineer
Toronto, Ontario, Canada
$121k-$170k/yr HybridFull Time
Nasdaq
NasdaqNASDAQ: NDAQ: Operates global electronic marketplaces and provides financial technology services.
10+ YOEBachelor's degree or equivalent, 10+ years professional software engineering experience with Core Java, experience building cloud-native, containerized, distributed microservice systems.
Core Java, Apache Kafka

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