[Hiring] Platform Engineer @Sonar Software

Role Description

Platform Engineers are builders. You take a product requirement, often with a working prototype attached, and turn it into a production-grade system. You design the technical approach, direct agents to build it, and verify what comes back. Then you ship it and keep it healthy once customers depend on it.

This role also makes the rest of the engineering org faster. When you solve a problem with an agent workflow, you turn it into something the team can reuse: a skill, a plugin, a quality gate, an automation. Your impact is measured by what you ship and by how much more everyone else ships because of you. This is not a traditional software engineer role with AI bolted on. The lines between software engineering, DevOps and SRE are blurring, and we're hiring for someone who works across all three.

What You'll Do

• Build with agents
  • Design, build and operate multi-agent workflows for real engineering work: implementation, test generation, review, triage and bug remediation.
  • Decompose work across agents and subagents, and manage context and state between steps.
  • Design for failure, including retries, timeouts, loops, hallucinated APIs and runaway cost.
  • Take prototypes from product and harden them into production features, ensuring sound architecture, real error handling, tests, security, and performance at tenant scale.
  • Own verification; agent output isn't done until it's correct, secure, performant and fits the architecture.
  • Know when an agent is the wrong tool, and say so.
• Design
  • Translate product requirements into technical specs covering architecture approach, data model changes, interfaces, constraints, failure modes, and acceptance criteria.
  • Keep specs current as the implementation evolves, ensuring the spec remains the source of truth.
  • Push back early when a requirement is technically unsound, carries hidden operational cost, or conflicts with the platform, bringing options, not just objections.
• Ship
  • Own the path to production: pipelines, migrations, feature flags, rollout and rollback.
  • Take particular care with post-deploy tasks and migrations that run across hundreds of tenant databases.
  • Treat quality gates as code, strengthening checks to prevent AI-accelerated incidents.
• Run
  • Ship observability with the feature, including instrumentation, dashboards, alerts and a runbook.
  • Understand how your work behaves under load, including queue backlogs, webhook storms, billing runs and our largest tenants.
  • Take part in on-call and incident response for what you own, contributing to blameless RCAs and follow-up work.
• Multiply
  • Turn one-off agent solutions into shared capabilities for other engineers to use: Claude Code skills and plugins, MCP integrations, context files, evals and automation.
  • Pair with engineers adopting agentic workflows, documenting effective patterns and flagging ineffective ones.
  • Measure the impact of what you build, such as cycle time, cost per change and defect escape, and be honest when it isn't paying off.

Qualifications

• 3 to 6 years of professional software development, including time supporting what you built in production.
• Demonstrated multi-agent orchestration you built and ran on real work, with the ability to discuss architecture, failures, and changes.
• Hands-on experience writing technical specs that agents and engineers execute against, with objective acceptance criteria for verification.
• A working understanding of evals, guardrails, prompt-injection risk and token/cost tradeoffs in agentic systems.
• Strong backend fundamentals, and comfort with relational databases at scale: query analysis, indexing, and migrations against large tables.
• Experience with CI/CD, containerized workloads and cloud infrastructure.
• Real observability experience, having built alerts and dashboards that people rely on.
• Clear written communication skills, as a significant part of the job involves writing for agents and for people.

Requirements

• Nice to have: PHP/Laravel, PostgreSQL, Vue.js/TypeScript.
• Azure, Azure DevOps, Kubernetes, Datadog, ElasticSearch.
• Experience with queue-heavy systems (Laravel Horizon, Redis).
• B2B SaaS with multi-tenant, database-per-tenant architecture.
• ISP, telecom, billing or OSS/BSS exposure.
• Experience working closely with product managers to shape requirements into buildable, operable designs.

Physical/Work Environment Requirements

• Prolonged periods of sitting or standing at a desk while working on a computer.
• Ability to communicate effectively via virtual platforms (video calls, phone, and email).
• Reliable high-speed internet connection and adequate home office setup for remote work.
• Visual acuity: Good vision is necessary for reviewing detailed documents and data on computer screens.
• Manual dexterity: The ability to use a keyboard, mouse, and other office equipment is required.
• Occasional travel for company meetings, training sessions, or team events.