columbus senior developer java, microservices, react.js Jobs – 118 Openings This Week

Senior Software Engineer (Node.js, React)
Frontier Dental Supply —Markham, ON
- $90,000–$110,000 a year
- Full-time
- Hybrid work
- AWS
- Analysis skills
- APIs
- Dental care
- Tuition reimbursement
Senior Developer - Java, Microservices, React.js
HCLTech —Queensville, ON
- Computer Science
- Java
- Master's degree
4d
Application Architect
Staples —Richmond Hill, ON
- $100,000–$130,000 a year
- Full-time
- Hybrid work
- Computer Science
- DevOps
- Master's degree
- Dental care
Java Developer
Prophecy Technologies —Toronto, ON
- Up to $495 a day
- Contract
- Azure
- DevOps
- Java
Quick apply
5d
Founding Engineer
Velix —Toronto, ON
- Full-time
- Remote
- AWS
- APIs
- Paid time off
Quick apply
Engineer, AI & Software Testing
Magna —Toronto, ON
- $95,000–$145,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
Observability Engineer
Accommodations Plus International —Markham, ON
- $90,000–$110,000 a year
- Weekends as needed
- Computer science
- Computer Science
- CAD
- Paid time off
- Employee assistance program
Quick apply
6d
Senior DevOps Platform Architect
Veriday Inc. —Toronto, ON
- $80–$85 an hour
- Hybrid work
- Azure
- DevOps
- Java
Quick apply
Software Engineering Co-op
Magna International —Newmarket, ON
- $21.08–$25.46 an hour
- Full-time
- Azure
- Computer Science
- DevOps
Quick apply
3d
Senior Software Developer
Metrolinx —Canada
- $110,854 a year
- Full-time
- Azure
- Computer Science
- DevOps
6d

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Senior Developer - Java, Microservices, React.js
HCLTech —Queensville, ON
Bachelors or masters degree in computer science or related field. Proficiency in java programming language and related frameworks.
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Senior Software Engineer
Tactable —Toronto, ON
Career coaching and personalized development plans. Regular social events, team outings, and wellness activities. Software development: 8 years (required).
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Senior Software Engineer
Tactable —Toronto, ON
Career coaching and personalized development plans. Regular social events, team outings, and wellness activities. Software development: 8 years (required).
$140,000–$190,000 a year
Quick apply
Senior Developer - Java, Microservices, React.js
HCLTech —Queensville, ON
Bachelors or masters degree in computer science or related field. Proficiency in java programming language and related frameworks.
4d

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Senior Software Engineer (Node.js, React)

Frontier Dental Supply
Markham, ON

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Job details

Full-time

Benefits

Casual dress
Dental care
Tuition reimbursement
Paid time off
Vision care
On-site parking

Skills

CI/CD
Pricing
Node.js
CSS
React
Kubernetes
MongoDB
E-commerce
AWS
Analysis skills
Docker
Redis
REST
APIs
S3
Service-oriented architecture
AI
TypeScript
MySQL

Full job description

Sr. Software Engineer (Node.js, React)

We're looking for a senior engineer who can take ownership of complex systems, make sound technical decisions, and drive meaningful outcomes. You'll work across the full stack - backend services, frontend applications, infrastructure, and data - with significant autonomy over how problems get solved.

This isn't a role where someone hands you tickets. You'll assess tradeoffs, identify what matters, and ship solutions that move the business forward.

Key Responsibilities: 

Make technical decisions with business awareness - evaluate options, assess risks, understand downstream impact, and choose the right path - not just the clever one
Own systems end-to-end - from database schema to API design to UI, across multiple services
Analyze impact before acting - understand how changes propagate through interconnected services, data pipelines, and scheduled jobs before committing to an approach
Improve what exists - identify bottlenecks, reduce fragility, expand test coverage, and modernize legacy code pragmatically
Design for reliability - build systems that handle failure gracefully, with proper observability, error handling, and recovery
Set technical direction - establish patterns, review architecture, and raise the engineering bar for the team

  Tech Stack:

Backend: Node.js, Express, TypeScript
Frontend: React, Vite, Tailwind CSS
Databases: MongoDB, MySQL
Caching: Redis
Infrastructure: Docker, cloud deployment (DigitalOcean), Turborepo Monorepo
Scheduling: Cron-based job orchestration
Integrations: REST APIs, web scraping, proxy management

Technical Skills: 

Strong production experience with TypeScript/Node.js and Express
Solid skills across MongoDB and MySQL - schema design, query optimization, migrations
Experience building and maintaining React frontends
Hands-on with Docker, cloud infrastructure, and CI/CD pipelines
Experience with Monorepo architecture and multi-service systems
Demonstrated ability to make technical decisions independently - weighing tradeoffs, assessing blast radius, and communicating rationale clearly
Strong impact analysis skills - you think through second-order effects before making changes to production systems
Experience with web scraping, proxy rotation, and third-party API integration at scale
Familiarity with Redis caching and scheduled job orchestration

 Nice to Have:

Experience with AWS services (EC2, ECS, Lambda, RDS, S3, CloudWatch, or similar)
Familiarity with Kubernetes - container orchestration, deployments, scaling, and cluster management
Experience with observability platforms (Datadog or similar)
Background in e-commerce, marketplace integrations, or dynamic pricing systems
Experience leading small engineering teams

  AI Usage:

AI tools are a core part of how we work:

Claude Code and Cursor are used daily for development - code generation, refactoring, debugging, and architectural reasoning
We expect you to be proficient with AI-assisted development and use it to move faster without sacrificing quality
Experience applying AI/ML to business problems (optimization, forecasting, anomaly detection) is a plus

  Who You Are:

You think before you build. You ask "what breaks if this changes?" before writing code
You communicate decisions clearly - to engineers and to non-technical stakeholders
You take ownership of outcomes, not just tasks
You're pragmatic - you ship working solutions and improve iteratively rather than chasing perfection
You're comfortable with ambiguity and can turn vague problems into concrete plans

Job Type: Full-time

Pay: $90,000.00-$110,000.00 per year

Benefits:

Casual dress
Dental care
On-site parking
Paid time off
Tuition reimbursement
Vision care

Work Location: Hybrid remote in Markham, ON

Apply Now

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senior developer java, microservices, react.js jobs in columbus

Senior Software Engineer (Node.js, React)

Senior Developer - Java, Microservices, React.js

Application Architect

Java Developer

Founding Engineer

Engineer, AI & Software Testing

Observability Engineer

Senior DevOps Platform Architect

Software Engineering Co-op

Senior Software Developer

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