Lead FullStack Software Engineer (AI experience)

Posted Yesterday
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Hiring Remotely in România
Remote
Senior level
Information Technology • Consulting
The Role
As a Lead FullStack Engineer, you will own architecture and technical decisions, enhance systems with AI, mentor engineers, and improve workflows.
Summary Generated by Built In

About the client:

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.

About the role:

We’re looking for a Senior Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to rethinking and rebuilding our clients’ auto repossession and remarketing platform, a system that directly influences how vehicles are recovered, processed, and remarketed across the big automotive ecosystem. This is an AI-first engineering role—not in name, but in practice. You’ll continuously evaluate where AI (including LLMs and agentic tools) can meaningfully improve engineering velocity, system quality, and operational efficiency, while applying strong judgment about where it should not be used.

You’ll help shape architecture, influence technical direction, and own what you build—from design to production. 


What You’ll Do:

Build & Evolve Critical Systems

Rethink and reshape core workflows based on a deep understanding of auto repossession and remarketing processes.

Design and implement scalable, resilient systems using modern architectural principles: clear service boundaries, modularity, and observability.

Incorporate LLMs and AI-driven components to improve data validation, document processing, and operational decision-making.

  • Use AI-assisted and agentic coding tools to accelerate development—while maintaining high standards for correctness, security, and maintainability.

Own Architecture & Technical Decisions

Drive architectural discussions and decisions, balancing pragmatism with technical excellence.

  • Set and enforce high-quality bars for new services and modules, with a focus on testability, performance, and reliability.
  • Identify and reduce technical debt in ways that measurably improve developer velocity and system robustness.

Build With an Ownership Mindset

Work across the full software lifecycle: design, build, deploy, operate, and iterate.

  • Embrace a “you build it, you run it” DevOps mindset alongside your team.
  • Make thoughtful trade-offs between effort, quality, and user value—always with accountability for outcomes.

Collaborate & Lead

  • Work closely with product managers, designers, and other engineers in an agile, cross-functional team.
  • Contribute ideas, challenge assumptions, and continuously improve how we build software.
  • Mentor and support other engineers through code reviews, design discussions, and technical leadership.

What We’re Looking For:

Canadian timezone work hours

  • A Lead (7+ years of experience) engineer who owns results, not just implementations.
  • Someone who enjoys complex problem-solving and isn’t afraid of legacy systems—or changing them.
  • Strong engineering fundamentals: clean code, testing discipline, system design, and performance awareness.
  • Strong experience with TypeScript and modern React / Next.js
  • Strong experience building production systems with .NET (Core / modern .NET preferred).
  • Comfort operating in production environments and learning from real-world feedback.
  • A builder’s mindset: If you can think it, you can build it. If you build it, you own it.
  • Experience leveraging AI, Generative AI (GenAI) to enhance engineering productivity, automate repetitive tasks, and optimize workflows. You should demonstrate the ability to integrate AI-driven solutions into your daily work — such as code generation, debugging, reviews, documentation, and decision support—to improve efficiency for yourself and your teams. A proactive approach to exploring and implementing AI tools that drive innovation and streamline development processes is highly valued. (Strong must)

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

Top Skills

.Net
AI
Generative Ai
Next.Js
React
Typescript
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The Company
HQ: North Miami Beach, Florida
2,135 Employees
Year Founded: 2002

What We Do

N-iX is a global software solutions and engineering services company that helps world’s leading organizations turn challenges into lasting business value, operational efficiency, and revenue growth using advanced technology. Whether you need to build a custom solution, modernize your digital product or acquire extra tech expertise - we have the experience and capabilities to ensure your success.

With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, e-commerce, healthcare, and more. Our unique combination of business domain expertise and technical know-how enables us to effectively collaborate with ISVs, tech companies, and enterprises of all sizes. Thanks to the strong tech ecosystem and partnerships with AWS, GCP, Microsoft, SAP, OpenText, Snowflake, and others, we bring extra speed, scale and efficiency to more than 160 organizations across the globe. N-iX is recognized by numerous industry awards, such as CRN Solution Provider 500, Global Outsourcing 100 by IAOP, ISG Provider Lens™, Modern Application Development services providers by Forrester, etc

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