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.