10,377 Senior Backend jobs

Randstad Polska

Open 36d HybridEuropeContractSenior

Java Backend Engineer & Systems Analyst

AI Angular Data Warehousing Java Microservices +1 skills

Senior Java backend engineer analyzing and optimizing complex microservices for a global fintech firm, using AI tools and collaborating across international teams.

PMSolutions

Senior Java Backend Engineer - Cloud Apps (Lodz)

Senior Java backend engineer designs and builds cloud applications using Core Java and OOP, delivering high/low-level designs for a client project.

Senior Java Backend Engineer, Cloud-Native BaaS

Builds cloud-native banking services using Java, designing scalable microservices for a digital bank’s BaaS platform.

Senior Java Backend Architect - Spring Boot, Kafka, JPA

Design and build a backend platform for a lending application using Java, Spring Boot, Kafka, and JPA in an Agile environment.

Agile Java JPA Spring

Senior Java Backend Engineer — Hybrid, WFA

Designs and builds high-performance Java backend services using Spring and REST APIs in a hybrid role.

Senior Java Backend Engineer – Derivatives Trading Platform

Build resilient Java/Spring Boot services for a derivatives trading platform, collaborating with traders and quants in Warsaw.

Java Spring

CONFISA INTERNATIONAL GROUP

Senior Java Backend Engineer - Spring Boot & Microservices

AI Java Microservices Spring

Designs and builds backend services in Java/Spring Boot for AI-driven systems, focusing on microservices and clean, maintainable code.

Kramp

Senior Java Backend Engineer: End-to-End Platform Builder

Senior Java backend engineer building end-to-end APIs and services for an ag-tech platform that improves farm operations and sustainability.

Senior Java Backend Engineer | Cloud-Native Microservices on Azure

AKS API Azure Cloud Infrastructure as Code +5 skills

Designs, builds, and maintains Java-based microservices on Azure using Spring Boot, RESTful APIs, AKS, and Terraform.

Poland and Eastern Europe

Senior Java Backend Engineer - Fintech Trading

Build and optimize high-performance Java backend systems for trading platforms using Spring Boot in a fintech environment.

API Fintech Java Spring

Tenarai Europe

Senior Java Backend Engineer - Microservices & Cloud

API CI/CD Cloud GCP gRPC +4 skills

Senior Java backend engineer building microservices and APIs in Spring Boot, deploying on GCP with Kubernetes, while collaborating with QA, SRE, and mentoring juniors.

Senior Java Backend Engineer — Hybrid, Scalable Microservices

Agile API Cloud Distributed Systems GCP +6 skills

Designs and builds high-performance Java microservices, deploys on Kubernetes, and maintains distributed systems with SQL/NoSQL databases in a hybrid setup.

Senior Java Backend Engineer - Cloud-Native Microservices

Agile API CI/CD Cloud Cloud Native +6 skills

Senior Java backend engineer building scalable microservices and REST APIs using cloud-native tech, Kubernetes, and data platforms in a distributed systems environment.

Traffit

Senior Java Backend Engineer - Secure SaaS, Remote

API BPMN Cloud Cloud Native Gdpr +3 skills

Builds a secure, cloud-native backend in Java/Spring Boot with Flowable BPMN workflows, multi-tenant data layer, and REST APIs for compliance case handling and document uploads.

Senior Java Backend Engineer — REST & Microservices

API Java Microservices REST

Build and maintain high-performance Java backend services and RESTful APIs for a global financial services client in a collaborative, security-focused team.

Senior Java Backend Engineer - Kafka & Cloud (Hybrid)