Senior Software Engineer

CommandLink, LLC; Argentina; On-site; ARS 1,800,000 - 2,400,000; Full time

Benefits offered by this job

Room to grow at a high-growth company

Flexible time off

Fun events at cool locations

Employee referral bonuses

Job summary

Command|Link is seeking a Senior Software Engineer to own large systems within its platform used by Fortune 1000 companies. You’ll work primarily in Go and Python across services, APIs, and data pipelines related to telemetry, SD-WAN, SASE, and security infrastructure.

This senior IC role emphasizes ownership, long-term health of platform components, and collaboration across teams. Mentorship and design leadership are core parts of the job, not side projects.

Qualifications

• Significant professional experience building and operating production backend systems.
• Deep working knowledge of Go and Python.
• Experience owning systems at scale including monitoring, incident response, and post-mortems.
• Experience designing distributed systems and APIs.
• Mentoring and design leadership experience.
• Strong collaboration and communication skills.

Responsibilities

• Own large components, services, or projects end to end, coordinating across teams.
• Design solutions with high availability and long-term maintainability.
• Build backend services in Go and tooling in Python, including APIs and data pipelines.
• Lead production issue responses, post-mortems, and long-term fixes.
• Take on greenfield work and help decide MVPs and foundations.
• Provide technical direction and maintain focus on practicality over over-engineering.
• Mentor engineers, review code, and help grow the team.
• Improve engineering productivity with better tooling, testing, and deployments.
• Contribute to team goals and hiring efforts.
• Take on additional responsibilities to support success.

Job description

Command|Link is a global SaaS Platform providing network, voice services, and IT security solutions, helping corporations consolidate their core infrastructure into a single vendor and layering on a proprietary single pane of glass platform. Command|Link has revolutionized the IT industry by tackling the problems our competitors create. In recognition for our unprecedented innovation and dedication, Command|Link was recognized as the SD-WAN Product of the Year, ITSM Visionary Spotlight, UCaaS Product of the Year, NaaS Product of the Year, Supplier of the Year, and the AT&T Strategic Growth Partner. Command|Link has built the only IT platform for scale that solves ISP vendor sprawl and IT headaches. We make it easy for our customers to get more done, maximize uptime and improve the bottom line.

CommandLink is looking for a Senior Software Engineer to own large systems inside the platform that Fortune 1000 companies rely on to run their networks. You will work primarily in Go and Python across the services, APIs, and data pipelines that ingest and act on telemetry from ISP circuits, SD-WAN, SASE, and security infrastructure.

This is a senior individual contributor role. You will own the design and long-term health of significant parts of the platform, coordinate with engineers on other teams when your work crosses their boundaries, and be one of the people the org depends on when something in production is not behaving. Mentorship and design leadership are part of the job, not a side project.

Key Responsibilities:

• Own large components, services, or projects end to end, from design through operation, and coordinate across teams when the work extends beyond your own.
• Design solutions to high complexity problems with availability, reliability, and long-term maintainability as first-class constraints, not afterthoughts.
• Build and evolve backend services in Go and data and automation tooling in Python, including the APIs and event pipelines that connect them.
• Act as a primary driver when production issues surface: lead the response, run the post-mortem, and own the long-term fix rather than the quick patch.
• Take on independent greenfield work where a new service or capability is the right answer, and help the team decide when to spike, when to ship an MVP, and when to invest in foundations.
• Instigate design discussions and give clear technical direction, pushing back on over-engineering while advocating for fixing what is under-built.
• Teach and mentor actively, review code with an eye toward growing the person as well as improving the change, and share context that makes the whole team faster.
• Improve engineering productivity through better tooling, testing, and deployment practices, and measure whether those changes actually helped.
• Contribute to team goals and delivery plans, and play a real part in hiring and interviewing as the team grows.
• Takes on additional responsibilities and projects as needed to support the success of the team and organization.

What you'll need for success:

Required

• Significant professional experience building and operating production backend systems, with deep working knowledge of Go and Python.
• Mastery of your primary languages and frameworks, and a strong grasp of how a large codebase and its services fit together rather than just the piece in front of you.
• A track record of owning systems at scale, including the operational side: monitoring, on-call, incident response, and post-mortems.
• Experience designing distributed systems and APIs, with sound judgment about data modeling, failure modes, and performance tradeoffs.
• Comfort working across a variety of development approaches and patterns, and the judgment to pick the one that fits the problem.
• Demonstrated experience mentoring other engineers and leading technical design discussions.
• Strong collaboration instincts: you assume positive intent, offer opposing views without defensiveness, and change your mind when the context warrants it.

Nice to Have

• Experience in telecom, networking, or connectivity, including familiarity with concepts like SD-WAN, SASE, BGP, or circuit provisioning. This is a plus, not a prerequisite. We expect to teach the domain to a strong engineer.
• Experience with event streaming and high volume telemetry ingestion.
• Cloud infrastructure and container orchestration experience, including infrastructure as code.
• Experience applying AI and machine learning to operational data such as anomaly detection, classification, or automated remediation.

Why you'll love life at Command|Link

Join us at CommandLink, where you'll have the opportunity to shape the future of business communication. We value the innovative spirit and seek individuals ready to bring their unique vision and expertise to a team that values bold ideas and strategic thinking. Are you ready to make an impact?

• Room to grow at a high-growth company
• An environment that celebrates ideas and innovation
• Your work will have a tangible impact
• Flexible time off
• Fun events at cool locations
• Employee referral bonuses to encourage the addition of great new people to the team

At CommandLink, we're committed to creating a fair, consistent, and efficient hiring experience. As part of our process, we use AI-assisted tools to help review and analyze applications. These tools support our recruiting team by identifying qualifications and experience that align with the requirements of each role.

AI tools are used only to assist in the evaluation process - they do not make final hiring decisions. Every application is reviewed by a member of our recruiting or hiring team before any decisions are made.