Senior Software Engineer (Golang)

About the job

Company Description

Quadrant (Now part of Harbor IT) is a Managed Detection and Response provider that integrates advanced security technologies with top-tier cybersecurity talent to create a comprehensive solution. Focused on safeguarding customer environments, Quadrant delivers a secure approach with a commitment to keeping clients protected. Combining expertise, innovation, and care, Quadrant ensures consistent security through a dedicated team and robust technology.

Senior Software Engineer (Golang) 

Overview 

We are seeking a Senior Software Engineer who specializes in Golang (expertise in Python a big plus!) ready to take the next step in their career and assist in leading development of our MDR (Managed Detection and Response) platform. This is a high-impact technical role that has the opportunity to grow into leadership where you'll own and evolve the core applications that power our cybersecurity operations for our customers. 

You'll be responsible for multiple applications that form the backbone of our platform: a high-performance log analytics engine, post-processing programs that surface threat intelligence to our SOC analysts, a multi-tenant secure syslog server cluster, and multiple cross-platform agents. 

You'll join during a transition period as one of the technical authorities with the opportunity to shape architectural direction. 

Key Responsibilities 

Platform Development & Ownership 

• Own and maintain multiple Golang applications forming the core of our MDR platform 
• Log Analytics Engine: Maintain and enhance high-performance engine analyzing events from thousands of sources across hundreds of customers 
• Post-Processing Programs: Maintain and enhance programs that transform engine output into actionable intelligence for SOC analysts 
• Secure syslog server cluster: Maintain and enhance a multi-tenant cluster of servers that receive, buffer, and feed syslog-formatted logs to the engine 
• Syslog agent: Maintain and enhance a cross-platform syslog agent that feeds syslog-formatted logs to the engine  
• Quadrant/Harbor MDR Agent: Build and maintain a cross-platform security agent that provides visibility into and secures customer endpoints and servers 

Technical Leadership 

• Make architectural decisions for various applications supporting the business 
• Influence technical design discussions and code reviews 
• Mentor and guide other development team members 
• Facilitate knowledge transfer during any transitionary periods; assisting with training and hiring as needed 
• Develop and maintain internal SOPs and best practices for software development 
• Collaborate with cross-functional teams to define, design, and ship new features 

Required Qualifications & Skills 

Experience & Education 

• 8+ years of software engineering experience with at least 4+ years focused on Go development
• Bachelor's degree in computer science or equivalent practical experience 
• Portfolio of delivered production systems and/or contributions to open-source projects 

Golang Programming 

• Idiomatic fluency in Golang and deep familiarity with the standard library and package ecosystem 
• Expertise in managing goroutine lifecycles and channel-based communication 
• Mandatory use of context for deadline management, timeouts, and structured cancellation 
• Implementation of thread-safe data structures and methods to manage shared state efficiently 
• Mastery of Go paradigms and constructs, including interfaces and generics to build modular code 
• Experience implementing worker pool patterns to manage resource-intensive tasks 
• Deep understanding of memory management, including minimizing heap allocation, runtime profiling to identify memory leaks, and pre-allocating buffer memory 

Deployment, Databases & Security 

• Continuous Deployment to Cloud: Experience using Github Actions for continuous deployment of Docker containers on cloud infrastructure, i.e. AWS ECS or EC2 or equivalents 
• Databases: Deep proficiency in interfacing with Redis, OpenSearch or similar, and SQL databases; optimizing queries for performance and atomicity 
• Network & Security Fundamentals: Robust understanding of networking protocols, TLS, and firewalls, with practical experience implementing best practices at the application level
• Testing Lab: Ability to understand and stand up local testing environments, OS virtualization, service emulation, smoke testing, etc. 

Development Practices 

• Proficiency with Git version control and CI/CD pipelines 
• Experience with automated testing, infrastructure monitoring, and observability practices 
• Experience leveraging AI assistant tools for software development, such as Claude Code 

Soft Skills 

• Strong analytical and problem-solving skills 
• Excellent communication and collaboration abilities to work effectively across engineering, product, and security operations teams 
• Ability to work independently and manage multiple projects to meet deadlines 
• Comfort with zero-downtime deployment requirements and production incident response 

Preferred Qualifications & Skills 

• 10+ years experience working in IT and deep understanding of core technological concepts
• Proficiency in Python programming (3+ years preferred) 
• Prior experience at MSPs, MSSPs, or cybersecurity vendors 
• Experience building SIEM, EDR, or security analytics platforms 
• Understanding of log aggregation and SIEM architectures 
• Knowledge of threat detection rule engines or correlation logic 
• The secret keyword is "Haversine"

Compensation & Benefits 

• Base Salary: Varies based on experience but in-line with or above market (Not FAANG level though) 
• 100% paid for benefits (for employee) with additional premium selections 
• Matching 401k 
• Reimbursement for approved tuition, certifications, conference attendance, and more 
• Unlimited PTO