Senior Site Reliability Engineer (Network) at PROS

📍 Job Overview

Job Title: Senior Site Reliability Engineer (Network)
Company: PROS
Location: Sofia, Sofia-Grad, Bulgaria
Job Type: Full-Time
Category: DevOps Engineer, System Administrator
Date Posted: June 25, 2025
Experience Level: Mid-Senior level (5-10 years)
Remote Status: On-site/Hybrid

🚀 Role Summary

Network Infrastructure Management: Design, implement, and maintain secure and scalable network infrastructure across cloud and on-prem environments.
Network Troubleshooting: Monitor network performance and troubleshoot latency, connectivity, and throughput issues.
Automation & Scripting: Automate network configuration and management tasks using scripting and infrastructure-as-code tools.
Collaboration & Leadership: Collaborate with cross-functional teams, lead incident response, and drive reliability improvements.
Security & Compliance: Enforce network security policies, ensure compliance with best practices, and mentor team members on SLO achievement.

📝 Enhancement Note: This role requires a strong background in network administration, cloud network design, and automation to ensure high availability and performance of PROS' network infrastructure.

💻 Primary Responsibilities

Network Infrastructure Management:
- Design, implement, and maintain secure and scalable network infrastructure across cloud and on-prem environments.
- Support VPN, Firewalls, load balancers, and other core network services.
- Ensure network reliability through robust fail-over mechanisms, disaster recovery processes, and 24/7 support strategies.
Network Troubleshooting & Monitoring:
- Monitor network performance using advanced monitoring/alerting solutions.
- Troubleshoot latency, connectivity, and throughput issues, and conduct root cause analysis.
- Identify and reduce operational toil through automation and tool development.
Automation & Scripting:
- Automate network configuration and management tasks using scripting (e.g., Python) and infrastructure-as-code tools.
- Develop and maintain scripts for network automation, configuration management, and deployment.
Collaboration & Leadership:
- Collaborate with managers, architects, and engineers to achieve successful outcomes.
- Lead incident response for network-related outages and coordinate disaster recovery testing exercises.
- Facilitate cross-team communication, provide training, and maintain clear documentation (e.g., runbooks and procedures).
- Drive reliability improvements through proactive initiatives and data-driven SLO adjustments.
Security & Compliance:
- Apply and enforce security best practices across cloud environments.
- Collaborate with security teams to enforce network security policies, firewalls, and access controls.
- Ensure compliance with relevant security standards and regulations.

🎓 Skills & Qualifications

Education: Bachelor's degree in Computer Science, Computer Engineering, or a related field.

Experience: 7+ years of experience in network administration or engineering.

Required Skills:

Proven expertise in network technologies: TCP/IP, routing, switching, VPN, and BGP.
Strong knowledge of cloud network design (Azure preferred, AWS or GCP).
Proficiency in firewall and load balancer management using network security best practices.
Proficiency in scripting (e.g., Python) for automation.
Experience with operating systems (Linux, Windows, etc.).
Excellent communication, time management, organizational, crisis management, and problem-solving skills.
Ability to work in a team and independently, with a willingness to innovate, learn, and share knowledge.
In-depth knowledge of monitoring and logging solutions with associated capabilities (e.g., Prometheus, Grafana, PRTG, Sumo Logic, etc.).
Relevant certifications (e.g., CCNA, CCNP, Cloud Networking Specialty) are a plus.

Preferred Skills:

Experience with IT security best practices and procedures.
Familiarity with disaster recovery processes and capacity planning.
Knowledge of incident management processes and tools.

📝 Enhancement Note: Candidates should have a strong foundation in network administration, cloud network design, and automation to excel in this role. Relevant certifications and experience with IT security best practices are highly desirable.

📊 Web Portfolio & Project Requirements

Portfolio Essentials:

Demonstrate a strong understanding of network infrastructure design, implementation, and management.
Showcase successful network troubleshooting and optimization projects.
Highlight automation and scripting projects that improved network efficiency and reliability.
Display experience with monitoring and logging solutions, and their application in network infrastructure management.

Technical Documentation:

Document network architecture, configuration, and management processes.
Provide clear and concise runbooks and procedures for network troubleshooting and incident response.
Demonstrate experience with version control, deployment processes, and server configuration management.

📝 Enhancement Note: Candidates should emphasize their network infrastructure management, automation, and troubleshooting skills in their portfolio. Clear and concise technical documentation is essential for this role.

💵 Compensation & Benefits

Salary Range: €45,000 - €60,000 per year (based on market research for Senior Network Engineers in Sofia, Bulgaria)

Benefits:

Competitive salary and benefits package.
Opportunities for professional growth and development.
Collaborative and innovative work environment.
The chance to work with a diverse and talented team on cutting-edge technology projects.

Working Hours: Full-time (40 hours/week), with on-call rotations and incident response as needed.

📝 Enhancement Note: The salary range is estimated based on market research for Senior Network Engineers in Sofia, Bulgaria. Actual compensation may vary depending on the candidate's experience and qualifications.

🎯 Team & Company Context

🏢 Company Culture

Industry: PROS operates in the software industry, providing AI-powered solutions that optimize selling in the digital economy. This role will work closely with cross-functional teams to ensure network reliability and security.

Company Size: PROS is a mid-sized company with a collaborative and innovative work environment. This role will have the opportunity to work with a diverse and talented team on cutting-edge technology projects.

Founded: PROS was founded in 1985 and has since grown to become a leading provider of AI-powered solutions for optimizing selling in the digital economy.

Team Structure:

The Network team is responsible for designing, implementing, and maintaining secure and scalable network infrastructure.
The team works closely with various departments, including IT, Security, and Engineering, to ensure network reliability and security.
The team is led by a Network Manager, who reports directly to the Director of IT.

Development Methodology:

PROS follows Agile development methodologies, with a focus on continuous improvement and collaboration.
The Network team uses infrastructure-as-code tools for network automation and configuration management.
The team follows ITIL best practices for incident management and network service desk processes.

Company Website: www.pros.com

📝 Enhancement Note: PROS' company culture emphasizes collaboration, innovation, and a commitment to the success of its customers. This role will play a crucial part in ensuring the network infrastructure supports the company's mission to provide AI-powered solutions that optimize selling in the digital economy.

📈 Career & Growth Analysis

Web Technology Career Level: This role is at the Senior level, with a focus on network infrastructure management, automation, and troubleshooting. The ideal candidate will have 7+ years of experience in network administration or engineering and a strong background in cloud network design and automation.

Reporting Structure: The Senior Site Reliability Engineer (Network) reports directly to the Network Manager and works closely with cross-functional teams, including IT, Security, and Engineering.

Technical Impact: This role has a significant impact on PROS' network infrastructure, ensuring high availability, performance, and security. The ideal candidate will drive reliability improvements through proactive initiatives, data-driven SLO adjustments, and advanced monitoring/alerting solutions.

Growth Opportunities:

Technical Growth: Expand expertise in cloud network design, automation, and security best practices.
Leadership Growth: Develop leadership skills by mentoring team members, leading incident response, and driving reliability improvements.
Architecture & Design: Contribute to network architecture and design decisions, shaping the future of PROS' network infrastructure.

📝 Enhancement Note: This role offers significant growth opportunities for candidates looking to advance their careers in network administration, cloud network design, and automation. The ideal candidate will be proactive, innovative, and committed to driving reliability improvements and ensuring network security.

🌐 Work Environment

Office Type: PROS' office is a modern, collaborative workspace designed to foster innovation and creativity. The company offers a hybrid work arrangement, with employees spending some time in the office and working remotely.

Office Location(s): PROS' headquarters are located in Houston, Texas, with additional offices in Sofia, Bulgaria, and other global locations.

Workspace Context:

Collaborative Workspace: The office features open-plan workspaces, meeting rooms, and breakout areas designed to encourage collaboration and communication.
Technical Equipment: Employees have access to state-of-the-art hardware, software, and tools to perform their jobs effectively.
Cross-Functional Collaboration: The office is home to various departments, including IT, Engineering, Sales, and Marketing, fostering cross-functional collaboration and knowledge sharing.

Work Schedule: PROS offers a flexible work schedule, with core hours between 10:00 AM and 4:00 PM. Employees are expected to work a full-time schedule (40 hours/week), with on-call rotations and incident response as needed.

📝 Enhancement Note: PROS' work environment encourages collaboration, innovation, and a commitment to the success of its customers. The company offers a flexible work schedule and a modern, collaborative workspace designed to foster creativity and productivity.

📄 Application & Technical Interview Process

Interview Process:

Phone/Video Screen: A brief phone or video call to discuss the candidate's experience, qualifications, and career goals.
Technical Deep Dive: A detailed technical conversation focusing on the candidate's network infrastructure management, automation, and troubleshooting skills.
On-site/Video Interview: A face-to-face or video interview with the hiring manager and other team members to assess the candidate's cultural fit, communication skills, and problem-solving abilities.
Final Decision: A final decision is made based on the candidate's technical skills, cultural fit, and alignment with PROS' values.

Portfolio Review Tips:

Highlight network infrastructure design, implementation, and management projects.
Showcase successful network troubleshooting and optimization projects.
Demonstrate experience with automation and scripting projects that improved network efficiency and reliability.
Provide clear and concise technical documentation, including runbooks and procedures for network troubleshooting and incident response.

Technical Challenge Preparation:

Brush up on network infrastructure management, automation, and troubleshooting skills.
Familiarize yourself with cloud network design, security best practices, and monitoring and logging solutions.
Prepare for behavioral and situational interview questions that assess your problem-solving skills, communication abilities, and cultural fit.

ATS Keywords: Network Administration, TCP/IP, Routing, Switching, VPN, BGP, Cloud Network Design, Firewall Management, Load Balancer Management, Scripting, Linux, Windows, Monitoring Solutions, IT Security Best Practices, Incident Response, Automation, Network Infrastructure Management, Network Troubleshooting, Network Performance Monitoring, Disaster Recovery, Capacity Planning, Incident Management, Agile Methodologies, Infrastructure-as-Code, ITIL Best Practices, Collaboration, Innovation, Problem-Solving, Communication Skills, Leadership, Mentoring, Network Architecture, Network Design.

📝 Enhancement Note: The interview process for this role focuses on assessing the candidate's technical skills, cultural fit, and alignment with PROS' values. Candidates should emphasize their network infrastructure management, automation, and troubleshooting skills, as well as their ability to work collaboratively and drive reliability improvements.

🛠 Technology Stack & Web Infrastructure

Network Infrastructure:

Core Network Services: VPN, Firewalls, load balancers, and other core network services.
Cloud Network Design: Azure (preferred), AWS, or GCP.
Network Protocols: TCP/IP, routing, switching, VPN, and BGP.
Network Security: Firewall and access control management, network segmentation, and encryption.

Automation & Scripting:

Scripting Languages: Python (preferred), Bash, or PowerShell.
Infrastructure-as-Code Tools: Terraform, Ansible, or Puppet.
Configuration Management: Git, GitHub, or other version control systems.

Monitoring & Logging:

Monitoring Solutions: Prometheus, Grafana, PRTG, or other network monitoring tools.
Logging Solutions: Sumo Logic, ELK Stack, or other logging and analytics platforms.

Operating Systems:

Linux: Ubuntu, CentOS, or other Linux distributions.
Windows: Windows Server or other Windows-based operating systems.

📝 Enhancement Note: Candidates should have a strong background in network infrastructure management, cloud network design, and automation using the technologies listed above. Familiarity with additional network protocols, security best practices, and monitoring and logging solutions is a plus.

👥 Team Culture & Values

Network Team Values:

Collaboration: Work closely with cross-functional teams to ensure network reliability and security.
Innovation: Drive reliability improvements through proactive initiatives, data-driven SLO adjustments, and advanced monitoring/alerting solutions.
Ownership: Take responsibility for network infrastructure management, automation, and troubleshooting.
Care: Ensure network reliability and security, with a commitment to the success of PROS' customers and employees.

Collaboration Style:

Cross-Functional Integration: Collaborate with IT, Security, Engineering, and other departments to ensure network reliability and security.
Code Review Culture: Participate in code reviews and knowledge sharing to improve network infrastructure management, automation, and troubleshooting.
Peer Programming: Collaborate with team members on network infrastructure design, implementation, and management projects.

📝 Enhancement Note: PROS' network team values emphasize collaboration, innovation, ownership, and care. Candidates should demonstrate a strong commitment to these values and a willingness to work collaboratively with cross-functional teams to ensure network reliability and security.

⚡ Challenges & Growth Opportunities

Technical Challenges:

Network Infrastructure Management: Design, implement, and maintain secure and scalable network infrastructure across cloud and on-prem environments.
Network Troubleshooting & Optimization: Monitor network performance, troubleshoot latency, connectivity, and throughput issues, and optimize network infrastructure for improved performance and reliability.
Automation & Scripting: Automate network configuration and management tasks using scripting and infrastructure-as-code tools to improve efficiency and reduce operational toil.
Security & Compliance: Apply and enforce security best practices across cloud environments, ensure compliance with relevant security standards and regulations, and collaborate with security teams to enforce network security policies, firewalls, and access controls.

Learning & Development Opportunities:

Technical Skill Development: Expand expertise in cloud network design, automation, and security best practices through training, workshops, and online resources.
Leadership Development: Develop leadership skills through mentoring team members, leading incident response, and driving reliability improvements.
Architecture & Design: Contribute to network architecture and design decisions, shaping the future of PROS' network infrastructure.

📝 Enhancement Note: This role offers significant technical challenges and growth opportunities for candidates looking to advance their careers in network administration, cloud network design, and automation. The ideal candidate will be proactive, innovative, and committed to driving reliability improvements and ensuring network security.

💡 Interview Preparation

Technical Questions:

Network Infrastructure Management: Describe your experience designing, implementing, and maintaining secure and scalable network infrastructure across cloud and on-prem environments.
Network Troubleshooting & Optimization: How do you approach monitoring network performance, troubleshooting latency, connectivity, and throughput issues, and optimizing network infrastructure for improved performance and reliability?
Automation & Scripting: Walk us through your experience automating network configuration and management tasks using scripting and infrastructure-as-code tools. How have you improved efficiency and reduced operational toil?
Security & Compliance: How do you apply and enforce security best practices across cloud environments, ensure compliance with relevant security standards and regulations, and collaborate with security teams to enforce network security policies, firewalls, and access controls?

Company & Culture Questions:

PROS' Mission & Values: How do you align with PROS' mission to provide AI-powered solutions that optimize selling in the digital economy, and our values of collaboration, innovation, ownership, and care?
Team Dynamics: Describe your experience working in a collaborative, cross-functional team environment. How do you contribute to a positive and productive work environment?
Problem-Solving: Provide an example of a complex network infrastructure challenge you faced and how you approached solving it. What was the outcome, and what did you learn from the experience?

Portfolio Presentation Strategy:

Network Infrastructure Projects: Highlight your experience designing, implementing, and maintaining secure and scalable network infrastructure projects.
Network Troubleshooting & Optimization: Showcase your ability to monitor network performance, troubleshooting latency, connectivity, and throughput issues, and optimize network infrastructure for improved performance and reliability.
Automation & Scripting: Demonstrate your expertise in automating network configuration and management tasks using scripting and infrastructure-as-code tools, and the efficiency gains you achieved.
Security & Compliance: Explain your approach to applying and enforcing security best practices across cloud environments, ensuring compliance with relevant security standards and regulations, and collaborating with security teams to enforce network security policies, firewalls, and access controls.

📝 Enhancement Note: The interview process for this role focuses on assessing the candidate's technical skills, cultural fit, and alignment with PROS' values. Candidates should emphasize their network infrastructure management, automation, and troubleshooting skills, as well as their ability to work collaboratively and drive reliability improvements.

📌 Application Steps

To apply for this Senior Site Reliability Engineer (Network) position at PROS:

Submit Your Application: Visit the PROS careers page and submit your application through the application link provided.
Tailor Your Resume: Highlight your network infrastructure management, automation, and troubleshooting skills, as well as your experience with cloud network design, security best practices, and monitoring and logging solutions.
Prepare Your Portfolio: Showcase your network infrastructure design, implementation, and management projects, as well as your experience with automation, scripting, and security best practices.
Research PROS: Familiarize yourself with PROS' mission to provide AI-powered solutions that optimize selling in the digital economy, and our values of collaboration, innovation, ownership, and care. Consider how your skills and experiences align with PROS' mission and values.
Prepare for Technical Interviews: Brush up on your network infrastructure management, automation, and troubleshooting skills, and prepare for technical deep dives, on-site or video interviews, and final decision-making processes.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and web development/server administration industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

Senior Site Reliability Engineer (Network)