Senior/ Lead FullStack Engineer

N-iX · LATAM

  • Senior
  • Full-time
  • Posted 2026-09-24
  • Confirmed live on 25 September 2026

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Job description

Canadian time zone

Time: 6 months

About the Opportunity

Our client is a leading European online car marketplace, serving 30M+ monthly users across 18 countries.

As a Senior/Lead FullStack Engineer:

• You will play a key technical leadership role within the client’s engineering organization. You will design, build, and evolve scalable backend services and user-facing features across our product suite.

• You will contribute across a polyglot stack that includes PHP (Laravel), JavaScript, and TypeScript, collaborating closely with product managers, designers, and other engineers to deliver robust, maintainable, and secure solutions.

• This role requires a high level of proficiency in using AI tools in day-to-day software development. AI-assisted workflows are not optional—they are an expected part of how we design, implement, test, debug, document, and optimize software. As a Senior/ Lead engineer, you will also help elevate your team’s AI capabilities by modeling effective usage patterns and sharing best practices.

What You'll Do

• Architect, design, and implement scalable services and product features using PHP (Laravel)

• Build and maintain frontend features using JavaScript and TypeScript

• Use AI tools extensively for code generation, refactoring, test creation, debugging, performance optimization, and documentation

• Critically evaluate AI-generated outputs to ensure correctness, security, maintainability, and alignment with architectural standards

• Lead technical design discussions and contribute to system and API architecture decisions

• Own complex features end-to-end, from technical design through deployment, monitoring, and iteration

• Drive improvements in code quality, performance, reliability, and security

• Write clean, maintainable, and well-tested code with strong automated test coverage

• Conduct in-depth code reviews and mentor engineers through actionable feedback

• Coach teammates on effective and responsible AI usage in software engineering workflows

• Collaborate cross-functionally to translate business requirements into scalable technical solutions

• Contribute to cloud infrastructure and services (AWS), ensuring high availability and operational excellence

• Participate in compensated on-call rotations to ensure platform reliability

• Champion DevOps best practices, CI/CD improvements, and observability standards

• Identify and lead technical initiatives that improve long-term platform sustainability

What We're Looking For

• 6-8 years of extensive professional experience in backend software development

• Strong expertise in PHP and Laravel (6+ years)

• Proficiency in JavaScript and TypeScript for modern frontend development

• Demonstrated advanced proficiency using AI tools in day-to-day engineering work (code generation, debugging, test automation, documentation, architectural exploration)

• Strong ability to validate, refine, and productionize AI-assisted outputs

• Experience improving team-level engineering practices

• Deep understanding of API design, distributed systems, and scalable architecture patterns

• Experience working with AWS or similar cloud environments

• Strong knowledge of CI/CD pipelines and modern DevOps practices

• Experience designing and optimizing relational databases and data models

• Proven ability to independently lead complex technical initiatives

• Strong problem-solving skills and ability to navigate ambiguity

• Clear and effective communication skills

• Participate in compensated on-call rotations to ensure reliability of our backend services

• Canadian timezone working hours

• English proficiency at B2/C1 level or higher.

Nice to Have

• Experience integrating AI capabilities into production products (e.g., LLM integrations, AI-driven features, intelligent workflows)

• Experience designing AI-enabled user experiences or backend AI services

• Experience in automotive, dealer software, or SaaS platforms

• Experience with containerization (Docker, Kubernetes)

• Event-driven architectures and messaging systems

• Performance tuning and high-scale system optimization

• Experience working in multi-product platform environments

We offer*:

• Flexible working format - remote, office-based or flexible

• A competitive salary and good compensation package

• Personalized career growth

• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

• Active tech communities with regular knowledge sharing

• Education reimbursement

• Memorable anniversary presents

• Corporate events and team buildings

• Other location-specific benefits

*not applicable for freelancers

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