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Added 11 mins ago
LL
Intermediate Fisheries Biologist
LGL Limited
Toronto, ON · Greater Toronto Area, Canada
- $70,000 to $85,000 CAD / year
- Full-time
…Biologist to contribute to dynamic fieldwork, deliver high-quality technical work, and support collaborative project…
Added 42 mins ago
G
Account Manager
Gallagher
Vancouver, BC
- Full-time
Success in this role requires more than technical knowledge, it calls for someone who is confidently curious, commercially minded, and ready to champion The Gallagher Way through every…
Added 3 hours ago
KC
Senior Consultant, Microsoft Fabric Data Engineer, Data & AI
KPMG Canada
Vancouver, BC
- Full-time
Provide technical leadership and mentorship to junior team members.
Added 4 hours ago
LD
Senior Mechanical Engineer
Leonardo DRS
Ottawa, ON · Kanata, ON
- Full-time
Mentor junior engineers and provide technical leadership on assigned programs
Added 6 hours ago
CA
Senior National Team Manager
Canada Artistic Swimming/Natation Artistique Canada
Canada
- Full-time
The position also provides operational support to Canada's Junior and Youth National Teams and plays an important role in creating a safe, positive, athlete-centred and high-performing…
Added 6 hours ago
BT
Supervisor, Audit and Assurance
Baker Tilly Canada
Courtice, ON
- Full-time
Strong technical audit, accounting and tax skills
Added 7 hours ago
MG
Technical Analyst, Database
Michael Garron Hospital
Toronto, ON
- Full-time
Reporting to the IT Manager – Technical and Client Services, the Technical Analyst is responsible for the effective provisioning, installation, configuration, operation, security, access…
Added 8 hours ago
W
Junior EDS Specialist – Engineering Design Systems
Worley
AB · Edmonton, AB
- Full-time
…Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable…
Added 8 hours ago
W
Junior EDS Specialist – Engineering Design Systems
Worley
Calgary, AB
- Full-time
…Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable…
Added 11 hours ago
L
Aircraft Maintenance Engineer M1/M2 - Resident or Rotational - YZF
Ledcor
Yellowknife, NT
- Full-time
Troubleshoot aircraft systems and diagnose complex defects, applying sound judgement and technical skill.
Added 11 hours ago
CI
Analyste Junior E3 / Junior E3 Analyst
Calian in Space & Technology
Montreal, QC
- Full-time
…together to provide electromagnetic (EM) expertise and analysis to support the design and in-service support of navy ships. We work closely with governments and large multinational…
Added 11 hours ago
KC
Senior Manager - Governance, Risk and Compliance Services / Internal Audit (Asset Management / Pensions)
KPMG Canada
Toronto, ON
- Full-time
…skills for the future, and take ownership of your career with support at every stage. Join a firm where your career can make a…
Added 11 hours ago
MD
Pub Util Rates Analyst 3 or 4
Minnesota Direct Care and Treatment
Saint-Paul, NB · St.-Paul, NB
- Full-time
…inclusion, and invests in employees by providing benefits, support resources, and training and development…
Added 11 hours ago
T
Bus Operations Support Lead I
TD
Toronto, ON
- Full-time
Provide assistance / training to junior staff as required
Added 12 hours ago
BC
Associate Director (Estimator/Quantity Surveyor)
BTY CONSULTANCY GROUP INC
Toronto, ON
- $100,000 to $130,000 CAD / year
- Full-time
Mentor and develop Senior Cost Consultants, Cost Consultants and junior team members, providing technical guidance, feedback and support.
Added 12 hours ago
FE
Junior IT Technician
Franklin Empire Inc
Toronto, ON
- Up to $50,000 CAD / year
Experience in the installation and technical support of Microsoft operating systems, Active Directory, Endpoint Management (TS), TCP/IP Protocol, Ticketing System;
Added 12 hours ago
AH
Senior Financial Analyst
Alberta Health Services
Calgary, AB · Greater Calgary Metropolitan Area
- Full-time
…including variance analysis. Partner with operational teams to support capital project accounting and capitalization policies. Assist with forecasting, budgeting, and capital planning.…
Added 12 hours ago
W
Associate Technical Consultant, Environmental Scientist
Worley
Edmonton, AB · Calgary, AB
- Full-time
Play an integral role in Worley Consulting’s Environmental & Sustainability (E&S) practice, where technical expertise, environmental stewardship, and innovative problem-solving help clients…
Added 13 hours ago
E
Field Archaeologist (Field Based)
ERM
Whitehorse, YT · Smithers, BC · Vancouver, BC
- Full-time
ERM is hiring Junior Field Archaeologists to join our global consulting firm as part of our archaeology and cultural heritage team in Vancouver and the surrounding area, Smithers, BC, or…
Added 13 hours ago
MG
Transportation Project Manager
MYR Group
Surrey, BC
- Full-time
Mentor junior project management and coordinators
Added 13 hours ago
JUNIOR ASSISTANT MANAGER
Boutique La Vie En Rose
Rouyn-Noranda, QC
As a member of the management team, you will support the assistant manager and manager in achieving sales goals, maintaining our company standards and motivating your team to excel.
Added 13 hours ago
JUNIOR ASSISTANT MANAGER
Boutique La Vie En Rose
London, ON
As a member of the management team, you will support the assistant manager and manager in achieving sales goals, maintaining our company standards and motivating your team to excel.
Added 13 hours ago
Principal Network Engineer
Hasbro
Montreal, QC
Clear communicator across technical and non-technical audiences. You can explain a zone segmentation model to a CISO and a Panorama template hierarchy to a junior engineer in the same…
Added 14 hours ago
AL
Intermediate Instrumentation & Control Engineer/Technologist
A.H. Lundberg Systems Limited
Vancouver, BC
- Full-time
We are looking to fill ONE (1) Instrumentation Controls Engineer/Technologist positions to join our team. Junior to intermediate level experience applicants will be considered.
Added 15 hours ago
EA
Junior Engineer Specialist
Elemex Architectural Facade Systems
London, ON
- $55,000 to $60,000 CAD / year
- Full-time
Working collaboratively with internal teams, the Junior Engineering Specialist will assist with reviewing technical documentation, identifying modelling discrepancies, and communicating…

Leyton

Full Stack Engineer

BC, Canada
British Columbia, 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 production, partnering with Product Owners to turn business needs into reliable technical solutions. Make architecture and engineering decisions, use AI coding tools, improve existing codebases, and help establish team practices and standards.

Requirements

Candidates should be able to build web applications across frontend and backend, understand software engineering fundamentals, work with modern frameworks, improve existing codebases, and communicate clearly in English. Senior candidates should also have production ownership, architecture, and mentoring experience; junior candidates should be able to build a complete application and show curiosity about AI coding tools.

Skills

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

Benefits

Visa Sponsorship Support
Relocation Assistance
Initial Accommodation Support
Local Administration Assistance
Spanish Language Support
Healthcare Coverage From Day One
30 Calendar Days Of Annual Vacation Plus Public Holidays
Career Growth Within A Global Organization

Visa sponsorship

Detected

Keywords

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

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