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Added 8 mins ago
BS
Tech Transformation - Application Network Engineer
Brainhunter Systems Ltd
Toronto, ON
- Contract
The Senior Network Migration & Application Connectivity Engineer is responsible for enabling the successful migration, modernization, and ongoing operation of business applications across…
Added 10 mins ago
A
Municipal Civil EIT - Civil 3D
AECOM
Burnaby, BC
- $66,000 to $75,000 CAD / year
- Full-time
…Lower Mainland. You will work directly alongside experienced Project Engineers, Project Managers, and senior Designers, and you'll see projects through the full lifecycle -from concept and…
Added 20 mins ago
HD
Databricks Engineer
Hire DigITalent Inc.
Toronto, ON · Greater Toronto Area, Canada
- $90 to $110 CAD / hour
- Contract
…actionable business products for marketing and promotions. The project team needs a seasoned Senior Data Engineer to help lead the charge, stabilize key deliverables, and guide our…
Added 20 mins ago
KG
Senior Water Resources Engineer
KGS Group
Mississauga, ON
- Full-time
We are looking for a Senior Water Resources Engineer to join our Water Resources Department in our Mississauga office. In this role you will be working alongside industry leaders that have…
Added 22 mins ago
H
Senior Electrical Power Engineer
HDR
Vancouver, BC
- Full-time
The Senior Electrical Power Engineer candidate should have experience within the utility scale power and renewable energy industry and be capable of leading teams for power generation…
Added 24 mins ago
Corporate Liability Engineer
Canadian Natural
Calgary, AB
Collaborate with internal stakeholders and senior leadership to develop advocacy positions, provide strategic guidance, and respond to information requests related to liability reduction…
Added 39 mins ago
I(
Senior Aeronautical Structural Engineer
ITPS (Canada) LTD
London, ON
- Full-time
ITPS Canada is seeking an experienced Senior Aeronautical Structural Engineer to support the design, development, modification, and certification of aircraft and airborne systems across a…
Added 52 mins ago
WI
Civil Engineer-in-Training
WSP in Canada
Kamloops, BC
- Full-time
…infrastructure projects including roadways, water distribution systems, sanitary sewers, stormwater management facilities, and land development projects. This role offers a balance of…
Added 52 mins ago
MV
*Senior Project Engineer
Metro Vancouver
Burnaby, BC
- Full-time
Our Water Services Department is seeking a *Senior Project Engineer who will be responsible for providing controls and automation programming, technical support, electrical and…
Added 52 mins ago
Z
Lead Data Engineer
ZS
Toronto, ON
- Full-time
The Data Engineering Lead is a senior technical professional responsible for designing, building, and optimizing scalable data architectures and processes to enable efficient data…
Added 52 mins ago
BP
Senior Production Engineer Scheduling
BNP Paribas
Montreal, QC
- Full-time
Liaises with upstream/downstream systems owners, Project and task management, Drives the technical projects from requirements gathering through to design, build and run phases. Ensures the…
Added 52 mins ago
WI
Senior Electrical Engineer - Mission Critical & Data Centers
WSP in Canada
Toronto, ON
- Full-time
Join our Mission Critical & Data Centers team and help shape the future of digital infrastructure across Canada. As a Senior Electrical Engineer, you will provide technical leadership on…
Added 52 mins ago
WI
Senior Electrical Engineer - Mission Critical & Data Centers
WSP in Canada
Ottawa, ON
- Full-time
Join our Mission Critical & Data Centers team and help shape the future of digital infrastructure across Canada. As a Senior Electrical Engineer, you will provide technical leadership on…
Added 54 mins ago
Civil Engineer-in-Training
WSP
Kamloops, BC
…infrastructure projects including roadways, water distribution systems, sanitary sewers, stormwater management facilities, and land development projects. This role offers a balance of…
Added 1 hour ago
M
Software Engineer II, Core Edge Processing
Marqeta
Remote, Canada
- Full-time
- Remote
As Marqeta's Software Engineer II on the Core Edge Processing team, you will write and ship production code at the heart of our processing systems, learning alongside senior engineers on a…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Kelowna, BC · Vancouver, British Columbia
- $134,080 to $184,000 CAD / year
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Saskatoon, SK · Vancouver, British Columbia
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Regina, SK
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Saskatoon, SK
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
TM
Senior Maintenance Engineer
The Mosaic Company
Esterhazy, SK
- Full-time
The Maintenance Engineer provides in depth support for plant facilities mechanical or electrical systems (rotating and stationary) to increase the facility's overall reliability. Tasks…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
AB · Edmonton, AB
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Kelowna, BC
- $134,080 to $184,000 CAD / year
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
R
Senior Mechanical Engineer
Raise
Burnaby, BC
- Full-time
Raise is currently hiring a Senior Mechanical Engineer on behalf of our client. They’re expanding their team to meet growing needs, making this a unique opportunity to work with an industry…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Vancouver, BC
- $134,080 to $184,000 CAD / year
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…
Added 1 hour ago
C
Senior P&C Engineer
CIMA+
Calgary, AB
- Full-time
As a Senior Protection and Control (P&C) Engineer, you will be working with a team of P&C detailed designers and contribute to large-scale electrical energy projects. You will evolve in a…

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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