Senior Software Engineer (Golang)

We are looking for a highly skilled and technically driven Senior Software Engineer (Golang) to join a fast-paced cybersecurity environment. You will own and evolve the core applications powering an MDR (Managed Detection and Response) platform, working alongside cross-functional teams to deliver high-impact security infrastructure at scale. This is a high-visibility role with a clear path into technical leadership.

The Ideal Candidate Has

6+ years of software engineering experience, with at least 4+ years focused on Go development
Bachelor's degree in Computer Science or equivalent practical experience
Idiomatic fluency in Golang, including deep familiarity with the standard library, goroutine lifecycle management, and channel-based communication
Expertise implementing thread-safe data structures, worker pool patterns, and memory-efficient code (heap allocation minimization, runtime profiling, buffer pre-allocation)
Mastery of Go paradigms including interfaces and generics to build modular, maintainable systems
Mandatory use of context for deadline management, timeouts, and structured cancellation
Experience with continuous deployment using GitHub Actions, Docker containers, and cloud infrastructure (AWS ECS, EC2, or equivalents)
Deep proficiency with Redis, OpenSearch (or similar), and SQL databases — including query optimization for performance and atomicity
Solid understanding of networking protocols, TLS, and firewalls, with practical application-level security experience
Proficiency with Git, CI/CD pipelines, automated testing, infrastructure monitoring, and observability practices
Portfolio of delivered production systems and/or open-source contributions
Strong communication and collaboration skills across engineering, product, and security operations teams
Comfort with zero-downtime deployment requirements and production incident response

Key Responsibilities

Co-own and maintain multiple Golang applications forming the backbone of the MDR platform
Maintain and enhance a high-performance log analytics engine processing events from thousands of sources across hundreds of customers
Maintain and evolve post-processing programs that transform engine output into actionable intelligence for SOC analysts
Maintain and enhance a multi-tenant secure syslog server cluster that receives, buffers, and routes syslog-formatted logs
Build and maintain a cross-platform security agent providing endpoint and server visibility for customers
Make architectural decisions across platform applications and influence technical design reviews
Lead and participate in code reviews, mentoring junior and mid-level engineers
Facilitate knowledge transfer during transition periods and assist with onboarding and hiring as needed
Develop and maintain internal SOPs and software development best practices
Collaborate with cross-functional teams to define, design, and ship new features

Perks of Working at FusionHit

Certified Great Place to Work, offering a supportive and inclusive culture
100% Remote - work from anywhere in Latin America
Personal and Professional Development Courses & Certifications
Flexible Schedule
3 Sick Days per year
Birthday Off
Extra Days for Special Occasions
Team Building Meal Reimbursement

Requirements

Benefits

Senior Software Engineer (Golang)

Key Skills

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