Senior/Staff Platform Software Engineer (AI)

Location: Porto, Portugal; hybrid work with 2 days onsite and 3 days remote

Company

Develops software that simplifies and digitizes the automotive customer journey for manufacturers and dealerships.

What you will do

• Design, build, and operate platform APIs, API gateway capabilities, and integration services connecting DMS platforms with OEMs, partners, and cloud products.
• Build reusable OEM and partner integrations and migrate existing integrations to the new platform.
• Define versioned API contracts, policies, access models, authentication, permissions, SLOs, alerts, contract tests, staged releases, and rollback processes.
• Own production operations, including monitoring, on-call support, incident leadership, post-mortems, and remediation.
• Develop AI-assisted integration workflows, coding and testing tools, repository guidance, evaluation practices, and security controls with human review.
• Review designs and code, coach engineers, document runbooks, and at Staff level set technical direction and lead cross-team migrations.

Requirements

• 8+ years of software engineering experience at Senior or Staff level.
• Experience building and operating production APIs and integrations used by other teams or partners.
• Experience modernizing long-lived software while keeping it running.
• Experience using AI coding assistants and agents on large, long-lived codebases beyond demos.
• Fluent English is mandatory; interviews are conducted in English.
• Strong proficiency in C#/.NET or Java.
• Experience with REST APIs, contract design, versioning, backward compatibility, API gateways, OAuth2, integration patterns, messaging, and events.
• Experience with Azure and AWS, containers, Kubernetes, CI/CD, automated and contract testing, and observability.
• Knowledge of LLM tooling, context engineering, agents, MCP, evaluation, and AI security including data leakage, prompt injection, and secrets management.
• Ability to build trust across teams, communicate clearly in designs and documentation, and demonstrate solutions in practice.

Nice to have

• French language skills.
• Automotive, DMS, or CRM software experience.
• Experience with software installed at customer sites.
• Experience building developer tools or AI workflows used by other teams.
• Experience with retrieval over code and documents.
• Open-source contributions.

Culture & Benefits

• Hybrid schedule with 2 onsite days and 3 remote days.
• 14 annual payments: 12 monthly payments plus a summer bonus and a Christmas bonus in November.
• €10.20 meal voucher per working day, 23 vacation days, and 24 or 31 December off.
• Private Multicare medical insurance and access to Spanish, English, or French group language classes.
• Team afterworks and activities, with an inclusive environment and recruitment adjustments available for people with disabilities.

Hiring process

• 30-minute introductory call with a Talent Acquisition Specialist.
• Interviews with the VP Engineering - Platform and a product team engineering lead.
• Technical interview involving pairing with AI tools on an unfamiliar codebase and an API design discussion.