Backend Engineer – Security & Mobile Connectivity

Role - Backend Engineer – Security & Mobile Connectivity

Type - B2B Contract

Payrate on B2B contract - 135 PLN /hour

Project until - 5/20/2027 (Possibility of extension)

Work mode - Poland Remote

Role - Backend Engineer – Security & Mobile Connectivity

Role Overview

We are seeking a highly skilled Backend Engineer to contribute to our engineering initiatives, with a focus on building secure, scalable, and high-performance backend systems. This role demands a robust understanding of backend architecture, security integrations, and practical experience with a suite of contemporary technologies including Splunk Secure Gateway, Splunk Mobile, and associated Cisco security ecosystems.

🛠️ Core Technical Requirements

Languages & Frameworks

• Proficiency in Python 3 and Java for backend service development.

• Experience building RESTful APIs and microservices architectures.

• Familiarity with React for collaborating on frontend interactions.

Cloud Infrastructure (AWS)

• AWS DynamoDB: NoSQL data modeling and management.

• AWS IAM: Role-based access control and security policy enforcement.

• AWS Lambda & API Gateway: Serverless architecture patterns.

Data Management & Caching

• Proficiency with Redis for in-memory caching, session management, and high-availability cluster configurations.

Containerization & Orchestration

• Docker & Docker Compose: Containerized development and multi-service environments.

• Kubernetes: Orchestration, scaling, and operations of containerized applications.

• Helm: Chart management and cluster administration.

🔐 Security & Integration Requirements

Splunk & Mobile Connectivity

• Splunk Secure Gateway: Administer and configure the Gateway to facilitate encrypted, VPN-less communication between Splunk instances and mobile devices via Spacebridge.

• Splunk Mobile Deployment: Manage the rollout of Splunk Mobile to provide stakeholders with real-time alerts and mobile-optimized dashboards (Dashboard Studio/Classic).

• Cisco Secure Firewall App for Splunk: Integration with Firewall Management Center (FMC) and configuration of eStreamer Client Add-On for data ingestion.

• Secure Network Analytics (SNA): SSL certificate management and Webhook setup for forwarding alerts to Splunk HTTP Event Collector (HEC).

Authentication & Access Control

• SAML 2.0 & SSO: Hands-on experience with Identity Providers (IdP), Active Directory (AD) attribute mapping, and SAML group/role configuration.

• Identity Security: Experience with Duo Single Sign-On and Two-Factor Authentication (2FA) policy enforcement.

Endpoint Security Analytics

• Experience with Cisco AnyConnect Network Visibility Module (NVM) and integration with Cisco Endpoint Security Analytics (CESA).

📊 Responsibilities

• Design & Develop: Build and maintain scalable backend services and APIs that power our secure data pipelines.

• Secure Connectivity: Implement and manage secure communication flows via Splunk Secure Gateway and Spacebridge.

• Infrastructure Management: Manage containerized deployments using Docker and Kubernetes while optimizing AWS and Redis performance.

• Mobile Optimization: Ensure critical business metrics and alerts are securely accessible via Splunk Mobile.

⭐ Desirable Experience

• Protobuf for efficient data serialization.

• WebSockets for real-time bidirectional communication.

• Duo Network Gateway (DNG) for secure access to on-premises web applications and SSH/RDP hosts.

• Knowledge of DMZ architecture and secure network design principles.

🎓 Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field.

• 3+ years of backend engineering experience.

• Strong understanding of network security principles and enterprise data privacy.