Principal Solutions Architect
About Us
At Nextlane, we don’t just develop software solutions – we create the future of the automotive industry.
We are a company that combines advanced technology with a clear vision: simplifying and digitizing every step of the automotive customer journey, empowering manufacturers and dealerships to thrive in a constantly evolving market.
We believe in the value of every team member, offering opportunities for you to develop and contribute to meaningful solutions.
So… What does it mean to be a #Nextlaner?
Be part of a growth-oriented culture.
Collaborate with colleagues from all over the world.
Believe in the power of ideas and the diversity of thought.
Be committed to providing an environment where you can learn, grow, and collaborate on projects that make a global impact.
Our success is measured not just by results, but also by the growth and satisfaction of those who are part of our company.
At Nextlane, you’ll have the opportunity to innovate, push boundaries, and work on solutions that are transforming the automotive world.
Your Responsibilities
As a key member of the team, you will be responsible for:
Product-Level Architectural Modernisation
Define and enforce architectural standards to reduce coupling, increase modularity, and enhance maintainability.
Contribute hands-on to production codebases to validate design decisions and refactoring strategies.
Drive structural improvements that increase deployment frequency, reduce defects, and improve delivery predictability.
Establish robust testing practices across unit, integration, and contract testing.
Legacy Decomposition & Structural Simplification
Lead deconstruction of large monoliths using Strangler Fig patterns and DDD bounded contexts.
Define service boundaries rooted in domain understanding.
Design customer-safe migration strategies that ensure revenue continuity.
Reduce duplicated logic and redundant capabilities across acquired systems.
AI‑Driven Modernisation Acceleration
Design and operationalize AI-assisted code migration frameworks.
Use AI for static analysis, duplication detection, risk assessment, and code transformation.
Define governance guardrails for automated refactoring with human-in-the-loop validation.
Embed AI-powered test generation and contract validation to reduce migration risk.
Quantify productivity and quality improvements enabled by AI.
Domain & Service Boundary Authority
Define domain-bounded contexts aligned with long-term platform strategy.
Ensure clarity in domain ownership to eliminate cross-team ambiguity.
Enforce API integrity, versioning discipline, and backward compatibility.
Integration & Interoperability
Design integration patterns across new services, legacy systems, and OEM platforms.
Establish event-driven and messaging standards.
Reduce integration complexity and operational overhead.
Cloud as an Enabler (AWS)
Guide application migration strategies (replatform, refactor, rearchitect).
Ensure AWS usage reinforces clean architecture and maintainability.
Embed observability, resilience, and security within the application architecture.
Economic & Portfolio Impact
Identify architectural simplifications that reduce cost-to-serve.
Support prioritisation using economic evaluations of technical debt and migration risks.
Contribute to legacy system retirement planning aligned with margin and investment discipline.
What We're Looking For
Experience
12+ years of hands-on backend engineering experience (C#, Java or similar).
Proven experience decomposing monolithic applications in live production environments.
Deep expertise in Domain-Driven Design and distributed systems.
Experience modernising legacy-heavy SaaS portfolios in complex settings.
Comfortable operating in environments with strong capital discipline (e.g., private equity-backed).
Bonus: Experience in platform convergence and multi-country SaaS ecosystems.
Languages
English required (interviews will be conducted in English).
Communication
Strong written and verbal communication skills.
Technical Skills
Architectural modernisation, DDD, service decomposition.
AI-assisted code analysis, refactoring, and test generation.
AWS application architecture.
Strong testing discipline: unit, integration, contract testing.
Experience with event-driven architectures and API governance.
Interpersonal Skills
Ability to collaborate in a diverse and dynamic environment.
Strong ownership, autonomy, and decision-making in complex ecosystems.
Our Recruitment Process
15-minute introductory call with our Talent Acquisition Specialist.
Technical and architectural interviews with senior engineering and product leaders.
Case study / system modernisation scenario discussion.
Final cultural and leadership alignment interview.
What We Offer
We understand that flexibility and trust are essential for our teams. Here are some of the benefits we offer:
🏡 Remote Work: Up to 3 days a week!
⏰ Work-life balance: Flexible entrance and departure times.
🌞 Summer Fridays: Start your weekend early!
🤝 Referral Bonus: €1500 for every talent you refer (after 6 months).
🍱 Flexible Remuneration: Through COBEE.
⚕️ Private Medical Insurance: Adeslas.
📚 Continuous Learning: Access to our internal development platform.
🌴 Vacation: 23 vacation days + intensive schedule in July & August.
🎉 Teambuilding: Afterworks and team activities you’ll remember!
Diversity, Inclusion & Belonging
At Nextlane, we are committed to creating a space where everyone feels valued and respected. We firmly believe that diversity in experiences and backgrounds strengthens our culture and drives innovation.
Support for people with disabilities — if you need adjustments during the recruitment process, just let us know.
Equal opportunities for all — we welcome applications regardless of age, gender, origin, disability, or any characteristic protected by law.
Join Nextlane and become part of the technological revolution in the automotive industry.
Discover why we are a great place to develop your talent!
- Department
- Engineering
- Locations
- Spain - Madrid
- Remote status
- Hybrid
About Nextlane
At Nextlane, we connect every part of the automotive value chain—dealers, OEMs, dealer groups, and technology partners—through one open, secure, and smart platform for automotive retail software.
Our platform removes fragmentation by unifying DMS and CRM workflows into one connected Sales and After-Sales ecosystem—ensuring consistent data, smoother integrations, and more efficient operations across sales, service, and back-office teams.
AI is increasingly embedded across our solutions, enhancing how dealers and OEMs work every day. New AI-driven capabilities improve quality, automate routine tasks, and strengthen data accuracy—bringing more intelligence and speed to sales and after-sales processes.
Built on a cloud-native architecture, the Nextlane Platform delivers the scalability, security, and performance modern dealerships and OEMs need. It connects our DMS and CRM solutions with OEM systems and third-party apps, ensuring compliance, uptime, and future-ready innovation.
With 700 experts supporting 10,000 dealerships in 11 countries and integrating 60+ OEM brands, Nextlane is Europe’s largest connected automotive software platform—accelerating digital transformation and continuous operational improvement.
Our growing Partner Ecosystem brings together leading third-party innovators to extend platform value—helping dealerships automate workflows, boost performance, enhance customer experiences, and stay ahead of industry change.