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Added 12 mins ago
M
Senior Full Stack Java Engineer
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to design, develop, and support scalable cloud-native applications that power Workforce Management (WFM), Customer Experience (CX), and…
Added 12 mins ago
M
Senior Full Stack Java Engineer - Workforce Management (WFM)
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to join the Workforce Management product stream and build enterprise-scale solution supporting forecasting, capacity planning, scheduling,…
Added 27 mins ago
EG
Développeur(-euse) de logiciels sénior(e) (contenu) / Senior Software Development Engineer
Expedia Group
Montreal, QC · Canada - Quebec - Montreal
- Full-time
Développeur(-euse) de logiciels sénior(e) (contenu)
Added 42 mins ago
V
Senior Firmware & FPGA Engineer, SST Control
Verdyn
Oakville, ON
- $110,000 to $160,000 CAD / year
- Full-time
We're looking for a Senior Firmware & FPGA Engineer to own firmware development of our solid state transformer at our Oakville facility. You'll own the real-time control firmware and FPGA…
Added 42 mins ago
A
Senior Piping Supports Design Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
Registered or eligible to be registered as a Professional Engineer in the Province of Ontario (mandatory requirement).
Added 42 mins ago
A
Piping Stress Analyst Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
This position requires a self-motivated individual capable of working independently or under the guidance of senior engineers. The successful candidate must be able to follow the direction…
Added 42 mins ago
A
Project Manager
AtkinsRéalis
Toronto, ON
- Full-time
Track cost, schedule, scope, quality, safety, and earned value performance, including schedule variance, cost variance, and schedule performance indicators, and prepare clear status reports…
Added 42 mins ago
S
AI Workflow & Operations Intern
Semtech
Richmond, BC · CAN - Richmond, BC
- Full-time
…embedded within Sales Operations. You will work directly with the Senior Director of Global Sales Operations to design, test, and document AI-enabled workflows that improve efficiency,…
Added 2 hours ago
F
Senior Software Engineer
Fleetworthy
AB · Edmonton, AB
- Full-time
The Senior Software Engineer is a hands-on technical contributor embedded in our agile development organization, helping build and deliver our next-gen compliance platform. You bring the…
Added 2 hours ago
F
Senior Software Engineer
Fleetworthy
AB · Edmonton, AB
- Full-time
Ensure code quality through automated testing and code reviews
Added 2 hours ago
IC
Quality Assurance Supervisor
IMT CORPORATION
Port Colborne, ON
- $65,000 to $85,000 CAD / year
- Full-time
Provide regular quality performance reports to senior management.
Added 3 hours ago
A
Senior Piping Stress Analyst Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
Registered or eligible to be registered as a Professional Engineer in the Province of Ontario (mandatory requirement).
Added 3 hours ago
A
Piping Stress Analyst Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
This position requires a self-motivated individual capable of working independently or under the guidance of senior engineers. The successful candidate must be able to follow the direction…
Added 3 hours ago
A
Piping Stress Analyst Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
This position requires a self-motivated individual capable of working independently or under the guidance of senior engineers. The successful candidate must be able to follow the direction…
Added 3 hours ago
A
Senior Piping Supports Design Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
Registered or eligible to be registered as a Professional Engineer in the Province of Ontario (mandatory requirement).
Added 3 hours ago
KC
Senior Embedded Software Designer
Kepler Communications Inc.
Toronto, ON
- Full-time
We're on the hunt for a top-tier Senior Embedded Software Engineer. Your focus will be on software development and maintenance required for both space and ground-based assets for a growing…
Added 3 hours ago
M
Senior Full Stack Java Engineer - Workforce Management (WFM)
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to join the Workforce Management product stream and build reliable solutions for forecasting, staffing, scheduling, real-time adherence,…
Added 3 hours ago
M
Senior Full Stack Java Engineer
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to design, build, test, and maintain reliable full-stack applications. You will use Java and Spring Boot to develop scalable backend…
Added 3 hours ago
M
Senior Full Stack Java Engineer - CX & Contact Center Solutions
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to provide hands-on technical leadership across CX and contact center solutions. You will shape scalable solutions using Java, Spring Boot,…
Added 3 hours ago
M
Senior Full Stack Java Engineer
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to design, build, test, and maintain reliable full-stack applications. You will use Java and Spring Boot to develop scalable backend…
Added 3 hours ago
M
Senior Full Stack Java Engineer - Workforce Management (WFM)
Miratech
Canada
- Full-time
We are looking for a Senior Full Stack Engineer to join the Workforce Management product stream and build reliable solutions for forecasting, staffing, scheduling, real-time adherence,…
Added 3 hours ago
CC
Senior Salesforce Engineer
Canadian Cancer Society
Prince George, BC
- Full-time
We are seeking a hands-on Salesforce Platform and AI Engineer to design, build, and scale secure, data-driven solutions that advance CCS’s mission. This role combines Salesforce…
Added 3 hours ago
CC
Senior Salesforce Engineer
Canadian Cancer Society
Kelowna, BC
- Full-time
We are seeking a hands-on Salesforce Platform and AI Engineer to design, build, and scale secure, data-driven solutions that advance CCS’s mission. This role combines Salesforce…
Added 3 hours ago
CG
Senior Engineer, Mine (Mount Milligan)
Centerra Gold Inc.
Fort St. James, BC
- Full-time
We have an exciting opportunity for an Senior Engineer, Mine to join our Mount Milligan Mine (MTM) operations site.
Added 3 hours ago
HR
Software Analyst
Hitachi Rail
Toronto, ON
- Full-time
…the railway signaling domain. Working under the guidance of a Senior Software Analyst or Technical Specialist, the incumbent develops expertise in one or more subsystem functional areas and…

Leyton

Full Stack Engineer

AB, Canada
Alberta, Canada, Canada

€30,000 to €50,000 EUR / year · Full-time

Apply About employer

Applications open in a new tab.

Job details

Pay: €30,000 to €50,000 EUR / year
Job type: Full-time
Apply by: Oct 29, 2026
Posting language: English
Posted: Sep 29, 2026

Original job description

Full-Stack Engineer (Junior & Senior Levels)

Build AI Products. Own Them. Shape the Future of Engineering in Barcelona.

Full-Time | Permanent

Location: Barcelona, Spain

Open to candidates across North America (United States & Canada)

Relocation to Barcelona, Spain is required

Visa sponsorship and relocation support available

Target Start Date: January 2027 (or as soon as work authorization is completed)

About Mainloop

Mainloop is a new AI-native engineering team based in Barcelona, built from the ground up inside an established international group.

We combine the energy of a startup with the stability, customers, and global reach of an organization that has been operating for decades.

Our mission is to build software that transforms how professional-services businesses operate by automating complex processes, reducing administrative work, and creating products that teams rely on every day.

The group has operated a technology lab in Casablanca for more than eight years. Barcelona is our second technology hub, created to be closer to the businesses we support and built with AI at the center from the beginning.

We are building the team now, and this is an opportunity to help shape how modern engineering teams work.

The Opportunity

We are hiring Full-Stack Engineers at two levels:

Junior Full-Stack Engineers

We are looking for early-career engineers who are curious, ambitious, and excited about the future of AI-assisted software development.

You do not need years of production experience. What matters is:

You can build working applications.
You enjoy learning quickly.
You have experimented with AI coding tools.
You want to become exceptional at building software with modern AI workflows.

Senior Full-Stack Engineer

We are looking for an experienced engineer who has owned production software and can help define architecture, engineering standards, and development practices as the team grows.

You will help shape how products are built, maintained, and scaled.

What You Will Do

As a Full-Stack Engineer at Mainloop, you will own products from development through long-term success.

You will:

Build and maintain software products used by teams across multiple countries.
Partner with Product Owners to translate business needs into technical solutions.
Design scalable architectures and make strong engineering decisions.
Develop frontend and backend applications.
Review, improve, and maintain existing codebases.
Use AI coding agents to accelerate development while maintaining quality.
Build features, write tests, and ship reliable software.
Own production quality and continuously improve the products you support.
Help define engineering practices, tools, and standards as the team grows.

AI-Native Engineering Environment

Mainloop is not a traditional engineering team that added AI tools afterward.

AI is part of how we build from day one.

You will work with:

AI coding agents such as Claude Code, Cursor, Codex, and similar tools.
AI-assisted development workflows.
Automated code review processes.
Modern testing and deployment practices.
Shared engineering patterns across our products.

The goal is not simply to write code faster.

The goal is to become better engineers by spending more time on:

Architecture
Problem solving
Product decisions
Quality
Technical judgment

What We Are Looking For

We are looking for engineers who enjoy ownership and building things that matter.

You may be a strong fit if you have:

Experience building web applications across frontend and backend.
Strong understanding of software engineering fundamentals.
Experience with modern development frameworks and technologies.
Ability to understand existing codebases and improve them.
Interest in AI-assisted development and modern engineering workflows.
Strong problem-solving skills and attention to quality.
Ability to communicate clearly in English.

For the Senior Engineer role, we are looking for:

Experience owning production applications.
Ability to make architecture decisions.
Experience mentoring or guiding other engineers.
Strong judgment around technical trade-offs.

For the Junior Engineer role, we are looking for:

Ability to build a complete working application.
Personal projects, internships, university projects, or early professional experience.
Curiosity and motivation to grow quickly.
Experience experimenting with AI coding tools.

Technology & Engineering Practices

We believe strong engineering comes from good systems.

Our teams focus on:

Consistent architecture patterns across products.
Automated testing.
Code quality and review processes.
Continuous improvement.
Clear ownership.

We use standards where they help, and we adapt when a problem genuinely requires something different.

The Mainloop Barcelona Certificate

We are building a structured engineering development program focused on:

AI-native software development.
Product ownership.
Architecture.
Building reliable applications.
Taking software from idea to production.

Engineers who complete the program and demonstrate mastery will receive the Mainloop Barcelona Certificate - a recognition of their ability to build modern software using AI-powered engineering methods.

Relocation & Benefits

For candidates relocating from North America, Mainloop provides:

Visa sponsorship support.
Relocation assistance.
Initial accommodation support.
Assistance with local administration.
Spanish language support.

Additional benefits include:

Permanent full-time employment contract in Spain.
Healthcare coverage from day one.
30 calendar days of annual vacation plus public holidays.
Opportunity to work across international markets.
Career growth within a global organization.
The opportunity to help build a new AI-native engineering team.

Why Barcelona?

Barcelona offers:

A strong international technology ecosystem.
A vibrant engineering community.
Excellent quality of life.
Access to European markets.
A multicultural environment.

This is an opportunity to build your engineering career at the intersection of:

Software Engineering + Artificial Intelligence + Product Ownership + Global Impact

Hiring Process

Our process is designed to understand how you think and build:

Introductory conversation
Learn about your background, experience, and what you are looking for.
Engineering discussion
Walk us through something you have built and discuss your technical decisions.
Conversation with our global technology team
Learn more about how we build and where we are going.
Practical project
Complete a real engineering exercise using the tools and workflow we use internally.

Apply with something you have built and tell us about a technical decision you made, what you learned, and how you would approach it differently today.

Mainloop | Barcelona, Spain

Building the future of AI-native engineering.

Apply About employer

More about this job

Responsibilities

Build, maintain, and own full-stack software products from development through long-term production quality, working with Product Owners to turn business needs into technical solutions. Make architecture and engineering decisions, use AI coding agents and modern testing practices, and help establish engineering standards as the team grows.

Requirements

Candidates should be able to build web applications across frontend and backend, understand software engineering fundamentals, improve existing codebases, and communicate clearly in English. Senior candidates should also have production ownership, architecture decision-making, and mentoring experience; junior candidates should demonstrate the ability to build a working application and motivation to grow with AI coding tools.

Skills

Full-Stack Development
Frontend Development
Backend Development
Web Application Development
Software Architecture
Production Software Ownership
AI-Assisted Development
AI Coding Agents
Automated Testing
Code Review
Codebase Maintenance
Product Ownership
Problem-Solving
Technical Decision-Making
Mentoring
English Communication

Benefits

Visa Sponsorship Support
Relocation Assistance
Initial Accommodation Support
Local Administration Assistance
Spanish Language Support
Healthcare Coverage
30 Calendar Days Of Annual Vacation Plus Public Holidays
Career Growth Opportunities

Visa sponsorship

Detected

Keywords

Full-Stack Engineering
Frontend Applications
Backend Applications
Web Applications
AI-Native Engineering
AI-Assisted Development
Claude Code
Cursor
Codex
AI Coding Agents
Software Architecture
Product Ownership
Production Applications
Automated Testing
Automated Code Review
Code Quality
Engineering Standards
Continuous Improvement
Deployment Practices
Technical Trade-Offs
Business Process Automation
Professional Services
Barcelona
Relocation
Visa Sponsorship

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