581 system software engineer jobs at 246 companies in Niagara Falls, NY

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Controls System Software Developer
Dundas, Ontario, Canada
$65k-$85k/yr OnsiteFull Time
Liburdi
Liburdi: Provider of specialized welding systems and turbine repair services.
1+ YOE1-3 years experience, Bachelor's in Engineering or Computer Science required. Strong C#/.NET and C++ skills, Visual Studio .NET and XML experience. PLC, OpenGL/OpenCV/OpenTK, 3D geometry and robotics experience are assets.
C#/.NET, C++, Visual Studio .NET, XML, OpenGL, OpenCV, Emgu, OpenTK, PLC
2mo
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Lead Software Engineer, Finance System
Toronto, Ontario, Canada
$111k-$153k/yr OnsiteFull Time
Element Fleet Management
Element Fleet ManagementToronto Stock Exchange: EFN: Provides commercial vehicle leasing and comprehensive fleet management services.
8+ YOE8+ years in software development and system integration; strong OO, API development, microservices; cloud, CI/CD, DevOps; ERP/financial systems experience.
Java, C#, Python, JavaScript/TypeScript, Cloud platforms, CI/CD, DevOps, APIs, Microservices, Mainframe integrations, COBOL, CICS, DB2, MQ
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System Validation Engineer
Toronto, Ontario, Canada
HybridFull Time
Micromart
Micromart: Provides autonomous smart store platforms and retail hardware.
Experience validating hardware-software systems, debugging Linux devices, testing edge devices and payment/vision flows, and driving root-cause fixes; familiarity with TypeScript/Node.js and networking fundamentals.
Node.js, TypeScript, Android, Linux, Raspberry Pi, Bash, Python, C
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
1d
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Staff Software Engineer
Vancouver or Toronto
$220k-$359k/yr HybridFull Time
Braze
BrazeNASDAQ: BRZE: Platform for personalized customer engagement and cross-channel messaging.
7+ YOE7+ years software engineering with systems at scale, technical leadership, strong fundamentals in algorithms and data structures, and excellent communication.
Ruby, Ruby on Rails, React, Go, SQL, NoSQL, MongoDB, Snowflake, Kubernetes, AWS, GCP, Azure
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Senior Software Engineer
Toronto, Ontario, Canada
OnsiteFull Time
Royal Bank of Canada
Royal Bank of CanadaTSX: RY: Provides personal, commercial, and investment banking services worldwide.
5+ YOE5+ years software engineering experience designing distributed systems and AI service architectures; expert in Python and Golang, containers, Kubernetes/OCP4, cloud (AWS/Azure), SQL/NoSQL, system optimization and mentoring engineers.
Python, Golang, Docker, Kubernetes, OCP4, AWS, Azure, SQL, Non Relational Databases, CI/CD, Application Performance Management (APM), Domain Driven Design (DDD), Event Driven Architecture (EDA)
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Software Engineer
Miami or Toronto or Seattle
HybridFull Time
Opendoor
OpendoorNASDAQ: OPEN: Digital marketplace for buying and selling residential real estate.
Proven software engineering experience shipping production systems, strong fundamentals in at least one general-purpose language, relational DB experience, ability to reason about performance at scale, strong communication and design skills.
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Senior Software Engineer
Toronto, Ontario, Canada
HybridFull Time
VAST Data
VAST Data: Enterprise AI infrastructure and unified data platform.
Systems-level software engineer with strong C/C++ experience, deep knowledge of database internals, data structures, algorithms, and OS concepts; proven experience building high-performance systems.
C, C++, SQL
4w
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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
4w
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Senior Software Engineer
Toronto, Ontario, Canada
OnsiteFull Time
ZoomInfo
ZoomInfoNASDAQ: GTM: Provides B2B contact data and sales intelligence software.
8+ YOE8+ years software engineering experience; strong Go or TypeScript/JavaScript proficiency; experience with GitOps/ArgoCD, Helm, Kubernetes, cloud (GCP/AWS), building/operating platform or delivery systems.
TypeScript, Node, NestJS, ArgoCD ApplicationSets, Helm, GCP Cloud Run, Nx, Go, Temporal, Model Context Protocol (MCP), Agentic AI, GitHub Actions, Kubernetes (K8s), GCP, AWS, Terraform, Cadence, Airflow, A2A (Agent-to-Agent), GitOps
6d
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Controls System ACCIS Engineer
Mississauga, Ontario, Canada
HybridFull Time
AtkinsRéalis
AtkinsRéalisToronto Stock Exchange: ATRL: Providing global engineering design and infrastructure project management services.
Honours engineering degree; software development for QNX and QT; experience with C/C++, POSIX, Java, SQL, XML, Visual Studio/Eclipse; knowledge of UML, static analysis, databases and virtualization; strong problem-solving and communication skills.
QNX, C, C++, QT 5, QT 6, POSIX, Java, SQL, XML, Visual Studio, Eclipse Platform, IEC61131-3, LabVIEW, MyQSL, SQLite, PI, VMWare, UML
1w
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Principal Software Engineer
Toronto or Toronto
$135k-$165k/yr HybridFull Time
Questrade Financial Group
Questrade Financial Group: Online platform for brokerage, wealth management, and banking services.
10+ YOE10+ years software engineering experience, strong TypeScript with React/React Native, daily use of AI developer tools (Cursor or Claude), experience leading solution design and architecture for complex systems.
Cursor, Claude, TypeScript, React, React Native, Angular, C#, .NET Core, WebSockets, gRPC, Firebase, Google Cloud Platform (GCP), BigQuery, Bigtable
1mo
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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
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Senior Software Engineer, Agents
Vancouver or Toronto or London
$140k-$196k/yr HybridFull Time
Klue
Klue: AI platform for competitive and market intelligence.
Senior-level software engineering experience building backend and retrieval systems, working with LLM/agentic systems, Python, cloud infrastructure, search/vector DBs, and production reliability/observability.
OpenAI, Anthropic, Gemini, PydanticAI, Logfire, Elasticsearch, Pinecone, PostgreSQL, Docker, Kubernetes, GCP, Temporal, Python, Git, CI/CD, PGVector, AWS, Azure, Copilot, Curssor, Claude Code
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Intermediate Software Engineer
Toronto, Ontario, Canada
$80k-$105k/yr HybridFull Time
Big Viking Games
Big Viking Games: Develops and operates free-to-play mobile and social games.
3+ YOE3+ years professional software development; strong in at least one of Java, TypeScript, or PHP; SQL proficiency; experience shipping features to production; understanding of system architecture and algorithmic complexity; Bachelor's in CS/Engineering preferred.
TypeScript, HTML5, JavaScript, PHP, Java, SQL, MariaDB, Redis, Memcached, Docker, GitHub Actions, HTMX, ActionScript, Flash, Claude
1mo
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Software Engineer, Sportsbook Platform
Canada or Toronto
$115k-$145k/yr RemoteFull Time
PENN Entertainment
PENN EntertainmentNASDAQ: PENN: Operates integrated casino gaming and online sports wagering platforms.
3+ YOE3+ years software engineering experience with distributed systems, GraphQL/gRPC APIs, PostgreSQL, Kubernetes, production on-call and performance troubleshooting experience.
Elixir, Phoenix, PostgreSQL, Kafka, gRPC, GraphQL, Kubernetes, DataDog, Phoenix, Ruby on Rails, Fast API, Laravel, Node, ExUnit, RSpec, Jest, pytest, Oban, Exq, Sidekiq, Celery, Beanstalk, Apache Kafka, RabbitMQ, AWS SQS, AWS SNS, Google Cloud Pub/Sub, Git, GitHub, Absinthe
6d
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Software Engineer
Markham or Toronto
$113k-$130k/yr RemoteFull Time
IBM
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
1+ YOE1+ years software development experience; cloud-native and distributed systems experience; familiarity with networking, security, and running production cloud services; Java and Kubernetes experience valued; Bachelor's required.
Java, Kubernetes, AWS, GCP, Azure
2mo
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Senior Software Engineer
Toronto, Ontario, Canada
$120k-$160k/yr HybridFull Time
NewRich Network
NewRich Network: A social learning platform for digital entrepreneurs and creators.
8+ YOE8+ years in software engineering; experience designing and scaling distributed systems; backend focus with modern tech stack; leadership and ownership mindset.
PHP/Laravel, TypeScript, Node.js, Go, MySQL, PostgreSQL, AWS, Redis, React, Pest, PHPUnit, Playwright, ESLint, Prettier, Pint, Psalm, CI/CD, GitHub Actions
2mo
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Staff Software Engineer, Builders
Toronto or San Francisco
$213k-$288k/yr HybridFull Time
EvenUp
EvenUp: AI-powered document generation and analysis for personal injury law.
8+ YOE8+ years software engineering experience at Staff level or equivalent; strong systems-thinking, diagnostic, architectural and communication skills; product-minded with experience at high-growth SaaS companies.
2mo
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Principal Software Engineer, MADS
Toronto, Ontario, Canada
$185k-$310k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
10+ YOE10+ years software development, 7+ years building large-scale distributed systems, experience leading technical strategy for orgs of 30+ engineers, expertise in streaming/batch/columnar data systems, Bachelor's in CS or equivalent.
Kafka, Flink, Kinesis, Spark, EMR, Parquet, Iceberg, Delta Lake, S3, SQS, Firehose

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