Software Engineer – Java

🕒 November 5, 2025

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PartnerOne

WebsiteLinkedInAll Job Openings

201 - 500 employees

🏢 Enterprise

☁️ SaaS

💳 Fintech

Enterprise • SaaS • Fintech

PartnerOne is one of the fastest growing software groups in the world, providing solutions that enhance the operational efficiency of the largest enterprises globally. The company specializes in acquiring software firms and investing in their development to create more robust, effective, and agile software solutions. PartnerOne is trusted by 80% of the world's largest companies, including the top US and European banks, defense contractors, and media conglomerates, focusing on delivering unparalleled customer support and innovative technologies.

📋 Description

• Develop and enhance cybersecurity platform services: design, implement, and maintain robust backend features and system components in Java (Spring Boot + Hibernate/JPA). • Build RESTful APIs and data flows; design schemas, manage migrations, and write efficient SQL for relational databases. • Write and maintain automation and tooling in Bash, Python, and/or Go for builds, deployments, diagnostics, and test harnesses. • Operate on Rocky Linux servers; troubleshoot across OS, networking, JVM, and database layers; daily development in IntelliJ or Eclipse. • Participate in peer code reviews, knowledge sharing, and SCRUM meetings; collaborate using the Agile software development lifecycle. • About 85–90% of the programming for this role is in Java and SQL; the rest is scripting (mostly Bash and Python/Go).

🎯 Requirements

• Strong experience developing applications using Java, with a strong understanding of object-oriented programming principles (concurrency, collections). • Hands-on with Spring Boot and Hibernate/JPA. • Experience building RESTful APIs and writing unit/integration tests. • Strong SQL and data modeling; hands-on with relational databases (e.g., MariaDB, PostgreSQL, MySQL, etc.). • Knowledge of TCP/IP networking fundamentals. • Comfortable working in Linux (preferably Rocky/CentOS/RHEL): shell, system services, logs, performance troubleshooting. • Good scripting skills in Bash and Python (bonus: Go). • Working knowledge of Git and CI/CD practices; IDEs: IntelliJ or Eclipse. • BSCS or MSCS (or related technical field) with 5–6+ years of experience developing and supporting multithreaded applications in a Linux/Unix environment. • **Bonus Skills** • Linux networking tools (iptables, ipset, ebtables), routing/bridging/VLANs, and packet capture/analysis. • Active Directory integration experience (AD/LDAP/Kerberos), Windows domain concepts, service accounts/GPOs. • Cloud APIs: experience automating or integrating with AWS, Azure, Google Cloud, and/or OCI (SDKs/CLIs for compute, storage, networking, IAM). • vSphere/ESXi for VM lifecycle management (provisioning, snapshots, virtual networking). • VirtualBox experience, especially using the VBox CLI (vboxmanage) for automation. • Containerization & orchestration: Docker and Kubernetes; event streaming: Kafka. • Experience with Bitbucket or GitLab (repos, merge requests, CI pipelines, permissions). • Cybersecurity domain experience (threat detection, hardening, threat research). • Experience working on Agile software development projects.