Mississauga, On Senior full stack developer (java) Jobs – 110 Openings This Week

Senior Fullstack Engineer, Generative UI Platform
Spotify —Toronto, ON
- Java
- APIs
- In-person
- Work from home
- Employee assistance program
Senior Data Engineer
Royal Bank of Canada —Toronto, ON
- Full-time
- Azure
- Computer Science
- DevOps
3d
Sr. Software Engineer, AVP II
State Street —Toronto, ON
- $91,000–$140,500 a year
- Full-time
- Azure
- Oracle
- Computer Science
8h
Senior Software Engineer | Remote | AI SaaS Software Role
Process Street —Toronto, ON
- Full-time
- Remote
- Java
- AWS
- JavaScript
- Dental care
- Paid time off
Quick apply
Sr. MindBreeze Developer
Tata Consultancy Services —Toronto, ON
- $90,000–$110,000 a year
- Java
- Python
Senior Backend Engineer, AI Platform
EvenUp —Toronto, ON
- $158,525–$214,475 a year
- Full-time
- Hybrid work
- Java
- C++
- Machine learning
- Designated paid holidays
- Disability insurance
Senior Android Engineer
Source Code —Toronto, ON
- $90,000–$117,200 a year
- Full-time
- Java
- APIs
Quick apply
Senior Software Engineer - Data Engineering Experience
Snowflake —Toronto, ON
- Computer Science
- Java
- Master's degree
13d
Sr. Software Engineer, Backend
Pinterest —Toronto, ON
- Hybrid work
- Computer science
- Computer Science
- Java
Senior Site Reliability Engineer
iManage —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Engineering
- Java
- Dental care
- Paid time off
Quick apply

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Senior Full Stack Developer – SQL, Database performance tuning, Copilot, Capital markets, Wealth Man
APPTOZA INC. —Toronto, ON
Contribute to system design| code reviews| development standards. Experience with AI-assisted code generation| automated testing| vulnerability remediation…
$50–$55 an hour
Quick apply
12d
Sr Full stack Developer - Java, Spring Boot
Aviva —Markham, ON
We are seeking a Full stack Developer with strong backend expertise to design, develop, and govern enterprise-grade applications.
$120,000–$145,000 a year

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senior full stack developer (java) jobs near mississauga, on

Senior Fullstack Engineer, Generative UI Platform

Spotify -
Toronto, ON

Apply Now

Job details

Permanent

Qualifications

Elasticsearch
Node.js
Law
Kubernetes
Full-stack development
Java
Docker
Distributed systems
APIs
TypeScript

Full job description

Engineering

Permanent

Toronto

UI Studio is Spotify’s internal generative UI prototyping platform that enables teams to spin up fully functioning replicas of Spotify surfaces — complete with playable music — to explore and pitch new product ideas. What started as a small internal project has evolved into a widely adopted platform, and we’re now expanding it into a full generative UI system where teams can prompt for the interfaces they need.

As part of Spotify’s Platform mission, we build the technology that enables Spotify to learn quickly and scale easily — creating the infrastructure, tooling, frameworks, and capabilities needed to support our global business and millions of creators and fans.

We’re looking for a Senior Fullstack Engineer who is genuinely fullstack — strong across backend systems and confident building high-quality frontend experiences — to help scale the platform’s architecture and AI-native capabilities. You’ll shape core technical decisions, lead complex initiatives end-to-end, and elevate engineering standards across the team.

What You’ll Do

Design and deliver fullstack features that power UI Studio’s generative platform capabilities
Architect and implement scalable services and user-facing workflows across frontend (Typescript/Node.js) and backend (Node.js & Java)
Lead the integration of LLM-powered coding agents into product workflows, including tool use, planning loops, evaluation loops, and multi-step orchestration
Drive search and retrieval architecture, including vector-based search systems, indexing strategies, and relevance optimization
Design, ship, and operate distributed systems deployed via containerized infrastructure (e.g., Docker, Kubernetes)
Take end-to-end ownership of complex systems and features, from technical design and implementation through deployment, monitoring, and operational excellence
Improve internal APIs, platform primitives, and developer tooling to create intuitive, scalable platform experiences
Partner closely with product, design, QA, and fellow engineers to deliver high-impact AI-native capabilities used across Spotify

Who You Are

You have 7+ years of experience building and operating production systems, with deep experience in TypeScript, Node.js and Java
You are comfortable contributing across the full stack and care about delivering polished, intuitive frontend experiences
You have experience building or integrating LLM-powered systems, including agent workflows, tool integrations, and multi-step orchestration
You understand search and retrieval patterns such as vector search systems, Elasticsearch, and indexing strategies
You have designed and operated distributed systems in cloud environments and deployed services using containerized tooling such as Docker and Kubernetes
You think in systems, considering scalability, observability, reliability, and long-term maintainability in your designs
You can independently lead well-scoped initiatives and provide technical guidance to other engineers
You communicate clearly in writing and produce thoughtful technical documentation
You care about raising the engineering bar and contributing to a collaborative, inclusive team culture

Where You'll Be

This role is based in Toronto
We offer you the flexibility to work where you work best! There will be some in person meetings, but still allows for flexibility to work from home.

Learn about life at Spotify

Spotify is an equal opportunity employer. You are welcome at Spotify for who you are, no matter where you come from, what you look like, or what’s playing in your headphones. Our platform is for everyone, and so is our workplace. The more voices we have represented and amplified in our business, the more we will all thrive, contribute, and be forward-thinking! So bring us your personal experience, your perspectives, and your background. It’s in our differences that we will find the power to keep revolutionizing the way the world listens.

At Spotify, we are passionate about inclusivity and making sure our entire recruitment process is accessible to everyone. We have ways to request reasonable accommodations during the interview process and help assist in what you need. If you need accommodations at any stage of the application or interview process, please let us know - we’re here to support you in any way we can.

Our global benefits

Extensive learning opportunities, through our dedicated team, GreenHouse.

Flexible share incentives letting you choose how you share in our success.

Global parental leave, six months off - for all new parents.

All The Feels, our employee assistance program and self-care hub.

Flexible public holidays, swap days off according to your values and beliefs.

Apply Now

Refine Your Search

senior full stack developer (java) jobs in mississauga, on

Senior Fullstack Engineer, Generative UI Platform

Senior Data Engineer

Sr. Software Engineer, AVP II

Senior Software Engineer | Remote | AI SaaS Software Role

Sr. MindBreeze Developer

Senior Backend Engineer, AI Platform

Senior Android Engineer

Senior Software Engineer - Data Engineering Experience

Sr. Software Engineer, Backend

Senior Site Reliability Engineer

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