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Added 2 mins ago
AE
Junior Electrical Technologist
Associated Engineering
Calgary, AB
- Full-time
…You will be active in the delivery of servicing to power and automation systems with instrumentation to monitor medium voltage electrical service, process, metering, primary and secondary…
Added 2 mins ago
NV
Databricks Architect (ID#5473)
New Value Solutions
Vancouver, BC · Greater Vancouver, BC
- Contract
Provide recommendations for platform maturity, automation, CI/CD, observability, and ongoing governance.
Added 3 mins ago
SO
Sr. Software Engineer
Spirit Omega Inc.
Remote, Canada
- $77 to $85 CAD / hour
- Contract
- Remote
· Exposure to Python for scripting, automation, or supporting integration utilities.
Added 3 mins ago
HW & SW Applications Admin 1
Celestica International LP
Toronto, ON
Azure DevOps Engineer Expert or AWS Certified DevOps Engineer - Professional
Added 18 mins ago
RB
Lead Quality Engineer - Data
Royal Bank of Canada
Toronto, ON
- Full-time
The Lead Data Quality Engineer is responsible for creating and executing comprehensive data testing strategies and solutions, with focus on data validation, integrity testing, and quality…
Added 32 mins ago
AI
JAMS Platform Engineer
Apptoza Inc.
Toronto, ON
- Contract
Seeking a hands-on engineer to drive the reliability| automation and modernization of the enterprise JAMS workload automation platform. The role combines JAMS platform expertise with…
Added 32 mins ago
SI
Software Engineer in Test
Spruce InfoTech Inc.
Vancouver, BC · Greater Vancouver Metropolitan Area
- Contract
QA Automation Lead Engineer (SDET – Python) role focused on building and maintaining scalable automation frameworks with strong Python and Pytest framework.
Added 32 mins ago
TI
AI Software Development Engineer in Test
Trimble Inc.
Kamloops, BC
- Full-time
Software Developer Engineer in Test, SDET, AI Test Engineer, Quality Assurance Engineer, Test Automation, Machine Learning QA, Python, LLM Testing, Model Context Protocol, Construction…
Added 32 mins ago
N
Mine Operations Superintendent
Nutrien
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- Full-time
Lead automation teams to advance automation initiatives and improve utilization of new technologies.
Added 32 mins ago
ES
Platform Engineer - AI/ML Infrastructure
Epsilon Solutions Ltd.
Toronto, ON
- Full-time
Were seeking a skilled Platform Engineer to deploy and manage our AI/ML infrastructure, e.g LlamaIndex Cloud and KDB.AI applications on Kubernetes Platform.
Added 32 mins ago
MR
Senior Platform Engineer/ High Growth
Motion Recruitment
Toronto, ON
- $190,000 to $220,000 USD / year
- Full-time
…incident-response software is looking for a Senior Platform Engineer to help scale the infrastructure behind its…
Added 32 mins ago
PG
Junior Test Engineer
Pacer Group
Waterloo, ON
- $60,000 to $68,000 CAD / year
- Full-time
Understanding of AI-assisted testing and use of AI tools in test automation.
Added 33 mins ago
Co-op/Intern - Electrical Engineer (8 month term)
Gerdau
Selkirk, MB
Experience with AutoCAD design software, PLC's and automation would be a benefit
Added 48 mins ago
ES
Cloud Engineer
Euna Solutions
ON · Oakville, Ontario
- Full-time
…SaaS products used by public sector organizations. As a Cloud Engineer, you will own cloud infrastructure design, provisioning, automation, and compliance across multiple product lines,…
Added 1 hour ago
II
Support and Integration Engineer
Isograd Inc.
Remote, Canada
- Full-time
- Remote
The Support and Integration Engineer is a technical, customer-facing role that bridges customer support, product and development teams. This person will be the go-to resource for resolving…
Added 1 hour ago
Senior AI Engineer
Charger Logistics Inc
Brampton, ON
We are looking for a highly motivated Sr. AI Engineer to join our team based out of our Brampton office and contribute to the development of AI-driven solutions for various departments.…
Added 1 hour ago
KR
Python Developer
KTek Resourcing
Montreal, QC
- Contract
We are seeking an experienced Senior Automation Engineer with strong expertise in Python development, UNIX/Linux scripting, and software deployment automation. The candidate will be…
Added 1 hour ago
O
Cloud Engineer
OpsGuru
Canada
- Contract
Role Title: Senior GCP Platform Enablement Engineer
Added 1 hour ago
BS
Tech Transformation - Application Network Engineer
Brainhunter Systems Ltd
Toronto, ON
- Contract
Role Title: Tech Transformation - Application Network Engineer
Added 1 hour ago
QW
SRE/ Platform Engineer
Quantum World Technologies Inc.
ON · Ontario, Canada
- Contract
Seeking a hands-on engineer to drive the reliability | automation and modernization of the enterprise JAMS workload automation platform. The role combines JAMS platform expertise with…
Added 1 hour ago
TS
Architect - Azure/Terraform- Cloud Platform Engineer
TECONICA SOFTWARES
Toronto, ON
- Contract
…Microsoft Azure ecosystem, Infrastructure as Code, CI/CD, cloud automation, and platform engineering. The engineer will be responsible for building scalable, secure, and highly automated…
Added 1 hour ago
HD
Databricks Engineer
Hire DigITalent Inc.
Toronto, ON · Greater Toronto Area, Canada
- $90 to $110 CAD / hour
- Contract
…and promotions. The project team needs a seasoned Senior Data Engineer to help lead the charge, stabilize key deliverables, and guide our technical strategy. This is a critical engagement…
Added 1 hour ago
CL
Senior AI Engineer
Charger Logistics Inc.
Brampton, ON
- Full-time
We are looking for a highly motivated Sr. AI Engineer to join our team based out of our Brampton office and contribute to the development of AI-driven solutions for various departments.…
Added 1 hour ago
NS
Senior QA Automation Engineer – Contact Center / IVR
N2P Systems
Toronto, ON
- Full-time
…with strong expertise in Contact Center platforms, IVR/Routing automation, and test automation. The ideal candidate will have hands-on experience with tools such as Cyara, Hammer, Selenium,…
Added 1 hour ago
Co-op/Intern - Electrical Engineer
Gerdau
Selkirk, MB
Experience with AutoCAD design software, PLC's and automation would be a benefit

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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