Full-Stack Software Developer

Salary: $75,000 – $100,000 per year

About the role

Soniq Digital Media Pty Ltd is looking for a Full-Stack Software Developer to help build Cybercast, our digital signage platform. Most of your work will be in our Go microservices on AWS. You'll also work on our built-in AI assistant and our MCP server, and on our React-based CMS front-end. You'll use AI coding tools every day, and we hold the code they help produce to a high bar: contract-first APIs, tests against real dependencies, and automated checks on every change.

What you'll be doing

As a Full-Stack Software Developer, you will be responsible for:

• Build and maintain backend services in Go, inside a monorepo with clear boundaries between services

• Design APIs contract-first with OpenAPI, generate server and client code from the spec, and evolve APIs without breaking clients

• Work with PostgreSQL: schema design, and safe expand/contract migrations

• Build event-driven flows with Kafka and Protobuf

• Build AI features in our assistant (TypeScript/Bun): LLM integration, tool calling, agent workflows and web search

• Extend our MCP server so AI clients can safely use the Cybercast API

• Write and maintain AI evals and guardrails so AI features behave reliably in production

• Contribute to the React CMS front-end when features span the stack

• Deploy on AWS (EKS/ECS, S3, SQS, IoT, EventBridge) through CI/CD and GitOps

• Use AI coding assistants (e.g. Claude Code, Codex, Cursor) as part of your daily workflow, and own the code they help you write

• Write integration tests against real dependencies, keep observability (OpenTelemetry) in place, and record design decisions as ADRs

Required Skills & Experience

To succeed in this role, you should have:

• 2+ years of professional software development experience

• Strong backend experience in Go (or strong backend experience in another language and a willingness to get productive in Go quickly)

• Solid SQL / PostgreSQL experience, including migrations on live systems

• Experience designing REST APIs, ideally contract-first with OpenAPI

• Working knowledge of TypeScript

• Hands-on experience integrating at least one LLM API (e.g. OpenAI, Claude/Bedrock, Gemini) into a real application