Senior Java Backend Engineer

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