93 system software engineer jobs at 60 companies in Tonawanda, NY

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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
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
3w
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Software Engineer (242803)
Toronto, Ontario, Canada
OnsiteFull Time
Scotiabank
ScotiabankToronto Stock Exchange: BNS: Provides global personal, commercial, and investment banking services.
Advanced software engineering expertise across applications and systems; experience with IBM tools, Java/Spring, Node.js, Python, relational and NoSQL databases, containerization, cloud platforms, DevOps tools, and incident triage.
Websphere, ACE, IIB, RSA, MQ, DB2, Java, Spring, XML, ESQL, Node.js, Express.js, Python, MySQL, PostgreSQL, MongoDB, Google Cloud, AWS, Azure, Docker, Kubernetes, Bitbucket, Git, Ansible, Jenkins, GitHub Copilot
1w
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Senior Software Engineer - Mainframe
Buffalo, New York, United States
$97k-$162k/yr HybridFull Time
M&T Bank
M&T BankNYSE: MTB: Provides retail, commercial, and wealth management banking services.
3+ YOEExpert-level mainframe software engineering with minimum 3 years systems analysis or application development experience (degree-dependent). Knowledge of mainframe SDLC, testing, resiliency, and modernization.
IBM z/OS, COBOL, CICS, JCL, VSAM, DB2 for z/OS, TSO/ISPF, SDSF, Easytrieve+, GitLab, File-AID, Abend-AID, Xpediter, InterTest, CA7, Control-M, MQ, z/OS Connect, ZDIH
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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
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Software Engineer, Simulation
Toronto, Ontario, Canada
$150k-$365k/yr HybridFull Time
Doppel
Doppel: Provides AI-native defense against digital social engineering and impersonation.
Experienced fullstack engineer to build a Simulation product integrating AI agents, large-language models, and voice synthesis into scalable systems for detecting and simulating social-engineering attacks.
large-language models, voice synthesis, AI agents, Threat Grid
2d
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Software Engineer - Test Systems
Buffalo, New York, United States
$80k-$105k/yr HybridFull Time
Moog
MoogNYSE: MOG.A: Design and manufacture of precision motion control systems.
Bachelor's in engineering, experience developing automated test systems; programming in LabVIEW, Python, C/C++ or Simulink; strong troubleshooting and communication skills; ability to travel internationally.
LabVIEW, Python, C, C++, Simulink
2mo
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Senior Staff Software Engineer
Toronto or Canada
$140k-$180k/yr RemoteFull Time
Nue
Nue: A unified revenue lifecycle platform for SaaS companies.
12+ YOE12+ years software engineering; Staff level; foundational systems; multi-stack backend; strong architecture and leadership.
AWS, GCP, Azure, Kubernetes, CI/CD, OpenTelemetry, Prometheus, Grafana, Claude Code, Copilot
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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
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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
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Senior Software Engineer, Agentic AI
Toronto, Ontario, Canada
$100k-$145k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
1+ YOEBachelor's in CS or related, 1+ years software development, experience building and deploying AI/ML systems, proficiency in Python, familiarity with ML frameworks, Git, data libraries, and cloud platforms preferred.
Python, Java, JavaScript, C++, TensorFlow, PyTorch, scikit-learn, Git, pandas, NumPy, SQL, AWS, GCP, Azure
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
1w
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MTS 1, Software Engineer, Full Stack
Toronto, Ontario, Canada
$142k-$190k/yr HybridFull Time
eBay
eBayNASDAQ: EBAY: Global online marketplace for buying and selling diverse products.
5+ YOE5+ years software design and implementation experience; 2+ years distributed systems or data platform experience; experience with React/Java/TypeScript/NodeJS; BS/MS in CS or related; strong communication and systems design skills.
NodeJS, Java, React, ReactJS, HTML/CSS, TypeScript, SpringBoot, SQL, Python, Scala
3w
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Staff Software Engineer – Confluent Control Plane Core Infrastructure
Markham or Toronto or Vancouver or Canada
$134k-$248k/yr RemoteFull Time
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
6+ YOETypically 6+ years software engineering experience; deep distributed systems and cloud expertise; hands‑on with Kubernetes and one or more of Go, Java, or Scala; strong design, SLOs/observability, and cross-team leadership.
Go, Java, Scala, Kubernetes, AWS, GCP, Azure, Apache Kafka, Confluent
1mo
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Software Engineer II, Core Identity (Auth0)
Toronto, Ontario, Canada
$110k-$152k/yr HybridFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
4+ YOE4+ years professional software development; proficiency with Node.js (TypeScript/JavaScript); experience building distributed systems on AWS or Azure; strong testing and product-oriented mindset; on-call participation.
Auth0, Node.js, TypeScript, JavaScript, MongoDB, PostgreSQL, Redis, AWS, Azure
2mo
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Staff Software Engineer
Draper or Toronto or Pittsburgh or Cork
$153k-$294k/yr OnsiteFull Time
Proofpoint: Provides cybersecurity solutions for email, cloud, and data protection.
8+ YOE8+ years building production backend or full-stack systems; strong Python, Postgres, API integration with OAuth; experience with distributed/asynchronous systems; leadership in technical execution.
Python, PostgreSQL, SQL, AWS, Docker, React, TypeScript
3w
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Copy of Senior Software Engineer, Billing Platform
Toronto, Ontario, Canada
$200k-$295k/yr HybridFull Time
Sentry
Sentry: Developer platform for error tracking and performance monitoring.
Senior-level engineer with experience building and operating high-accuracy distributed systems, mentoring engineers, and ensuring reliability and financial correctness at scale.
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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Software Engineer, User Profile
Alberta or Calgary or Canada or Toronto or Vancouver
RemoteFull Time
StackAdapt
StackAdapt: Self-serve programmatic advertising platform for digital marketers.
2+ YOE2+ years backend experience, strong algorithms/problem solving, experience with Go/Java/Python/C++ and distributed systems, Kafka and distributed databases experience preferred.
Golang, Kafka, Kubernetes, Redis, ScyllaDB, TiDB, Java, Python, C++
2w
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Staff Software Engineer (Backend) - Everand Core
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas or Charlotte
$141k-$267k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
Significant backend engineering experience building and scaling distributed systems; strong coding in Ruby/Scala/Go/Python; expertise in reliability, observability, SLOs, and mentoring; cross-functional collaboration experience.
Ruby, Scala, Go, Python

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