Senior Backend Architect

Join Pixid, an HR scale-up at the crossroads of SaaS, data, and employee experience, rapidly expanding across Europe.

We help companies digitalize the management of their talents and partners through powerful, intuitive solutions. And to support our growth, we’re hiring a

Senior Backend Architect.

Pixid is entering an

ambitious transformation

phase and is

looking for the next builders

of this change!

The platform is highly configurable and used by multiple international stakeholders, making the

challenge particularly stimulating .

PIXID manages more than 222,000 companies connected to over 12,000 temporary work agencies. Each month,

they exchange more than 2.5 million documents , representing a

purchasing volume estimated at nearly €11 billion !

We're seeking an

experienced Backend Architect

to lead our architectural transformation from monolithic to microservices architecture.

You’ll be instrumental in designing and implementing scalable, secure, and maintainable backend systems while guiding our engineering teams through complex technical migrations.

Architectural Leadership : Design and implement microservices architecture patterns to strategically strangle our monolithic application, ensuring smooth transition with minimal business disruption

Identity & Security : Architect and implement OAuth2/OpenID Connect authentication flows, integrate with Identity Providers (IdP), and establish secure service-to-service communication patterns

Database Migration : Lead the migration strategy from MariaDB to PostgreSQL, including data modeling, performance optimization, and zero-downtime migration planning

Event-Driven Architecture : Design and implement event-driven systems using Apache Kafka, to support asynchronous business processes, ensuring reliable message delivery

Technical Mentorship : Guide development teams in Java/Spring best practices, micro-services patterns, and architectural decision-making

Standards & Governance : Establish architectural standards, API design guidelines, and technical documentation practices

8+ years

of backend development experience with at least 3 years in architect role

Expert-level proficiency in Java

and Spring ecosystem (Spring Boot, Spring Security)

Proven experience in

monolith-to-microservices transformation

using strangle the monolith pattern

Deep understanding of

OAuth2, OpenID Connect, and modern IdP integration

(Keycloak, Auth0, Okta, Gravitee, …)

Hands-on experience with

database migration projects , specifically MariaDB to PostgreSQL and materialized view

Strong

expertise in Apache Kafka

and event-driven architecture patterns

Experience with

containerization

(Docker, Kubernetes) and cloud platforms

Solid

understanding of distributed systems, and consistency patterns

Nice to Have

Knowledge of Domain-Driven Design and hexagonal architecture

Experience with observability tools (Prometheus, Grafana, ELK stack)

HR Screening

Technical Interview with the Head of Engineering

Home Case study

Culture fit interview with HRD and CTO

Ready to

leave your mark

on the transformation of a strong, market-established SaaS?

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