Senior Java Backend Engineer

Undelucram.ro on behalf of:

Evolve Today

We are Evolve Today, a recruitment agency connecting top engineering talent with world‑class opportunities.

We are hiring a Senior Java Backend Engineer to join a high‑impact engineering initiative building large‑scale scientific, medical, and analytics platforms used globally.

Our partner is a global leader in information management and data analytics, supporting the scientific and academic ecosystem through:

Scientific & Academic Publishing — platforms used by millions of researchers
Data‑Driven Analytics — tools enabling universities and institutions to make evidence‑based decisions
Your work will directly influence how the world produces, accesses, and understands scientific knowledge.

Role Overview

You will join a dedicated engineering team responsible for designing, building, and operating backend services and microservices powering a global research platform.

This is a backend‑focused role, centered around Java, Spring, cloud‑native architectures, and modern distributed systems. You will collaborate with engineering squads across Romania, the UK, and the Netherlands, contributing to the evolution of a complex, high‑availability ecosystem.

This position is open exclusively to candidates based in Romania.

Working Model

Flexible collaboration: Employment (CIM) or B2B
Location: Romania — remote or hybrid from Cluj / Iași
Team setup: Cross‑functional engineering teams distributed across RO, UK, and NL

If you’re a senior backend engineer who thrives in modern architectures, enjoys ownership, and wants to build systems used by the global research community, send your profile, and let’s talk.

Responsibilities

Design and develop backend services and APIs using Java & Spring
Build and maintain microservices and system integrations
Own services in production: deployment, monitoring, reliability, and incident response
Implement data access layers and messaging‑based integrations
Ensure observability, performance, and security across services
Mentor junior engineers and contribute to engineering best practices
Participate in Agile workflows, architecture discussions, and cross‑team collaboration

Requirements

You will work across a modern backend ecosystem, owning services end‑to‑end:

8+ years of professional experience as a Backend Java Engineer
Design and develop backend services and REST APIs using Java (Spring / Spring Boot)
Build and maintain microservices, integrations, and distributed components
Implement data access layers across SQL / NoSQL (PostgreSQL, MySQL, DynamoDB)
Work with messaging systems such as Kafka, SQS, and RabbitMQ
Operate services in production: deployment, monitoring, reliability, and incident response
Ensure observability (logs, metrics, tracing), performance, and security
Work with AWS services: ECS, EKS, Lambda, S3, RDS
Contribute to CI/CD pipelines and Git workflows
Participate in architecture discussions, Agile ceremonies, and cross‑team collaboration
Mentor junior engineers and promote engineering best practices
Strong expertise in Java, Spring, Spring Boot
Solid experience with microservices, distributed systems, and API design
Strong system design and data modeling skills
Hands‑on experience running services in production
Experience with SQL/NoSQL databases and messaging systems
Strong collaboration and communication skills in cross‑functional teams

Nice to Have

Kotlin
Advanced cloud architecture experience
Experience with large‑scale distributed systems

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