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Added 17 days ago
Senior Software Engineer, Community Safety
Lyft
Toronto, ON
Utilize your expertise in Python, Golang, AWS to deliver robust and scalable solutions
Added 1 month ago
Senior Software Engineer II (ML Ops), Marketplace
Apartment List
Canada
Full-time
…and model serving infrastructure, and collaborating closely with data scientists and engineers to bring ML capabilities into…
Added 25 days ago
Staff DevOps Engineer
Nexxa.AI
Remote, Canada
Full-time · Remote
We're looking for a Senior/Staff DevOps Engineer who has spent the last several years building and operating the infrastructure that lets AI and industrial systems run reliably at scale.…
Added 19 days ago
Lead AI Engineer
Royal Bank of Canada
Toronto, ON
Full-time
…proficiency in modern development technologies (.NET/C#, Java, Python). You will effectively communicate and collaborate with engineering teams, business stakeholders, and senior management…
Added 12 days ago
Senior Security Engineer - Application Security
Faire
Kitchener, ON · Toronto, ON
As a Senior Security Engineer, Application Security, you'll collaborate with us to:
Added 26 days ago
QE Lead, Quality, Non-Functional
Vancity
Vancouver, BC · Toronto, ON
Full-time
As an Engineering Lead, Quality, Non-Functional, you will play a senior technical role responsible for ensuring the quality engineering capabilities, performance, scalability, reliability,…
Added 26 days ago
QE Lead, Payments
Vancity
Vancouver, BC · Toronto, ON
Full-time
As an QE Lead, Payments, you will play a senior technical role responsible for ensuring the quality, reliability, and performance of member-facing platforms through hands-on engineering…
Added 19 days ago
Senior AI Engineer
Royal Bank of Canada
Toronto, ON
Full-time
We are seeking an accomplished Senior AI Engineer to contribute to the design, development, and implementation of AI-driven solutions within our software development lifecycle. This role…
Added 1 month ago
Software Developer - Backend (Intermediate to Senior)
Xanadu
Toronto, ON
Full-time
As a Software Developer, you will help build out the pennylane.ai ecosystem of products. The goal of pennylane.ai is to help pioneer quantum software development as a discipline and spread…
Added 1 month ago
Senior Software Engineer, Full-Stack Applications - Ratings Technology
Robert Walters
Toronto, ON
Full-time
Deep full-stack engineering expertise – 12+ years of hands-on experience building web applications, with expert-level proficiency in Java, Springboot, Python, REACT, and modern web…
Added 1 month ago
Senior Backend Python Engineer
Apexon
Toronto, ON
Full-time
We're looking for a Senior Backend Python Developer to join a team building secure, scalable, high-performance platforms for a core banking environment, candidates who have hands-on…
Added 26 days ago
Senior Associate SIEM Implementation
PwC
Calgary, AB · Vancouver, BC · Ottawa, ON · Toronto, ON · Montreal, QC
Full-time
Experience with cloud platforms including Azure, GCP, and AWS.
Added 26 days ago
Cybersecurity - Cloud Security - Senior Consultant
EY
Edmonton, AB · Vancouver, BC · Toronto, ON · Montreal, QC · AB · Calgary, AB
As a Cloud Security Senior Consultant, you'll lead and contribute technically to cybersecurity client engagements and internal projects. Your knowledge of Microsoft Azure will help you to…
Added 10 days ago
Lead AI Engineer
RBC
Toronto, ON
Full-time
…proficiency in modern development technologies (.NET/C#, Java, Python). You will effectively communicate and collaborate with engineering teams, business stakeholders, and senior management…
Added 10 days ago
Senior AI Engineer
RBC
Toronto, ON
Full-time
We are seeking an accomplished Senior AI Engineer to contribute to the design, development, and implementation of AI-driven solutions within our software development lifecycle. This role…
Added 26 days ago
Senior Software Engineer, Security
Super.com
Remote, Canada
Full-time · Remote
As a Senior Software Engineer on our Security team, you'll help shape the direction of our security tooling and AppSec practices and lead high-impact security work across the company. Your…
Added 1 month ago
Full Stack Developer
CGI
Calgary, AB
Full-time
We are seeking Intermediate to Senior Full Stack Developers to design, build, and deploy scalable web applications. The ideal candidate will have strong front-end expertise in both frontend…
Added 26 days ago
Senior Software Engineer, AI
Calabrio
Remote, Canada
Remote
Calabrio-Verint is looking for a highly skilled and experienced Senior Software Engineer, AI to perform a key role in our digital transformation program, and deliver exceptional customer…
Added 1 month ago
Senior Software Developer
Cavtera
Ottawa, ON · Kanata, ON
Full-time
As a Senior Software Developer, you’ll be a technical leader within an engagement team, responsible for the architecture and delivery of complex digital solutions on Palantir Foundry.…
Added 1 month ago
Senior Software Developer, Full-Stack (Client experience)
Dialogue
Montreal, QC
Full-time
Your role as Senior Software Developer, Full-Stack
Added 26 days ago
Security Advisor PAM Specialist
Intact FC
Mississauga, ON · Ottawa, ON · Toronto, ON · Montreal, QC
Full-time
We are seeking a Senior PAM Specialist with deep hands-on expertise in IDIRA (formerly CyberArk) to lead the design and architecture of our PAM program and to build advanced integrations,…
Added 1 month ago
Senior Software Developer – Backend Services
PDF Solutions
Vancouver, BC
Full-time
PDF Solutions is seeking a highly experienced Senior Software Developer to design, develop, and maintain scalable backend services and distributed systems that power our industry-leading…
Added 1 month ago
Senior Consultant, ML/AI Engineer, Data & AI
KPMG
Calgary, AB · Vancouver, BC · ON · Toronto, Ontario
Full-time
Experience deploying ML models to cloud environments (Azure, AWS, or GCP) with an understanding of cloud‑native architecture and security principles.
Added 20 days ago
BCG Platinion | Senior AI Tech Consultant, Tech Advisory & Delivery
Boston Consulting Group
Toronto, ON
$160,000 CAD / year
Full-time
As a Senior AI Tech Consultant, you’ll be given end-to-end responsibility for an individual “module” within a BCG client engagement and begin to develop specialized knowledge to help you…
Added 1 month ago
Senior Solutions Engineer
Forma.ai
Toronto, ON
Full-time
Strong proficiency in Python and SQL, with experience writing efficient, production-grade code

AceStack LLC

Core Java Developer with Apache Spark & Python Experience / Montreal, QC (Hybrid) - FTE

Montreal, QC, Canada

Job type: Full-time
Apply by: Oct 18, 2026
Posting language: English
Posted: Sep 18, 2026

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Original job description

Job Title: Core Java Developer – Apache Spark & Python

Location: Montreal, QC

Work Model: Hybrid

Job Overview

We are seeking a Senior Java Developer with 7–12+ years of experience, with strong Core Java and backend development, Must have 3+ years of Apache Spark and Python, strong SQL/Linux skills, and experience building distributed data-processing/analytical applications.

Key Responsibilities

Design, develop, test, and maintain scalable server-side applications using Core Java and Python.
Develop and optimize large-scale data processing applications using Apache Spark.
Design and implement data processing solutions for high-volume and complex datasets.
Write, optimize, and troubleshoot complex SQL queries and database solutions.
Integrate analytical platforms and data processing systems with enterprise applications.
Develop and integrate RESTful APIs and microservices.
Apply strong knowledge of data structures, algorithms, object-oriented programming, and multithreading.
Troubleshoot application, data processing, and system performance issues.
Work extensively in Linux/Unix environments for application deployment, monitoring, troubleshooting, and production support.
Participate in application architecture, technical design, and code reviews.
Collaborate with business analysts, architects, data engineers, QA teams, and other stakeholders.
Follow coding standards, security practices, design principles, and software development best practices.
Support CI/CD pipelines, application releases, and overall application lifecycle management.
Contribute to improving application scalability, reliability, performance, and maintainability.

Required Skills & Qualifications

Strong hands-on experience in Core Java development.
Proven experience working with Apache Spark for distributed data processing.
Strong development experience with Python.
Strong proficiency in SQL and relational databases.
Solid working knowledge of Linux/Unix environments.
Experience developing server-side applications and microservices.
Experience designing and integrating analytical and data processing systems.
Strong understanding of:
Data Structures & Algorithms
Object-Oriented Design
Multithreading & Concurrency
Exception Handling
Performance Optimization
Hands-on experience developing and integrating RESTful APIs.
Strong debugging, troubleshooting, and problem-solving skills.
Experience working with large-scale data and high-performance applications.

Preferred Qualifications

Experience with cloud platforms such as AWS, Azure, or GCP.
Knowledge of the Hadoop ecosystem and related big-data technologies.
Experience with Docker and Kubernetes.
Familiarity with CI/CD and DevOps practices.
Experience working in Agile/Scrum development environments.
Experience in Financial Services or Capital Markets is a plus.

Key Competencies

Strong analytical and problem-solving abilities.
Ability to design and develop scalable, high-performance solutions.
Strong communication and collaboration skills.
Ability to work independently and effectively with cross-functional teams.
Strong focus on code quality, performance, reliability, and maintainability.
Ability to troubleshoot complex production and application issues.

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More about this job

Responsibilities

Design, develop, and maintain scalable server-side applications and large-scale data processing solutions using Core Java, Python, and Apache Spark. Collaborate with cross-functional teams to integrate analytical platforms while ensuring high performance, reliability, and adherence to coding standards.

Requirements

Requires 7–12+ years of experience in Core Java development with at least 3 years of hands-on experience in Apache Spark and Python. Candidates must possess strong SQL, Linux/Unix, and distributed systems knowledge, along with experience in microservices and API integration.

Skills

Core Java
Apache Spark
Python
SQL
Linux
Unix
Distributed data-processing
RESTful APIs
Microservices
Data structures
Algorithms
Multithreading
Object-oriented programming
CI/CD
Database solutions
Performance optimization

Visa sponsorship

Not detected in the job text

Keywords

Core Java
Apache Spark
Python
SQL
Linux
Unix
Distributed Systems
Data Processing
RESTful APIs
Microservices
Multithreading
CI/CD
Data Structures
Algorithms
Object-Oriented Design
AWS
Azure
GCP
Hadoop
Docker
Kubernetes
Agile
Scrum
Financial Services
Capital Markets
Backend Development
Performance Optimization
Production Support
Software Development
Data Engineering

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