[Hiring] Senior Software Engineer @Signa Techlaw Corp

Role Description

As Senior Software Lead, you'll own the technical direction of a major area of our platform for several quarters. You'll design the systems, write the specifications, direct AI agents to build them, and review, test and harden what they produce. You'll also build the AI agents that run inside our product, and set the standards that let the whole team work AI-native. This is a technical leadership role without formal people management.

Qualifications

• Daily, advanced use of AI coding agents in real production work.
• Strong systems design: distributed, event-driven architectures on AWS.
• Deep code reading and judgment in Python and TypeScript.
• LLM systems in production: agents, tool use, RAG, evaluations, guardrails and monitoring.
• Data pipelines (streaming and ETL) and search and indexing at scale.
• Reliability engineering: SLOs, incident leadership and observability.
• Security architecture, including the risks introduced by AI systems and AI-generated code.
• Infrastructure as code (CloudFormation, CDK or Terraform) and CI/CD with automated quality gates.
• Clear technical writing: RFCs, specs and decision records others can act on.
• Professional English, written and spoken.

Requirements

• Own the technical direction of a major platform area (data collection, evidence and claims, or data and AI) across several quarters.
• Lead several cross-team initiatives in parallel and unblock delivery across squads.
• Set architecture, reliability, security and AI quality standards that other squads adopt, written as RFCs and decision records.
• Turn product needs into precise specifications, architecture and acceptance criteria that AI coding agents can execute.
• Direct AI coding agents (Claude Code, Cursor, Codex or similar) to build features end to end.
• Review AI-generated code for correctness, security, performance and maintainability.
• Build the guardrails that make AI-written code safe: automated tests, evals, CI quality gates and staged rollouts.
• Define how the team works with AI: shared context files, prompt and agent conventions, review practices and playbooks.
• Design and run LLM agents in production for detection, verification and evidence collection.
• Build evaluation frameworks, monitoring, drift detection and red-teaming for models and agents.
• Integrate RAG, vector search and computer vision into product workflows.
• Manage the cost and latency of AI in production, including model selection and token budgets.
• Design event-driven, distributed systems on AWS that scale data collection across marketplaces and platforms.
• Own streaming and ETL pipelines, and search and indexing foundations (OpenSearch patterns).
• Define SLOs and SLIs, lead incidents and postmortems, and own observability across metrics, logs and traces.
• Apply security by design: threat modeling, secrets and key management, data access boundaries, and AI-specific risks.
• Mentor Leads and Senior developers to work AI-native, through design reviews, pairing and written feedback.
• Act as the technical authority and escalation point for your domain.

Benefits

• Indefinite-term contract and 100% remote work.
• 18 days of PTO per year, plus the public holidays of your country.
• A clear technical career path on the Individual Contributor track, up to Principal.
• Access to the latest AI tools, plus training and certifications.
• Hard technical problems with AI at the core of the product, in a horizontal and autonomous team.

Company Description

Signa is a global enterprise SaaS platform that detects and removes illicit online product trade across social media, marketplaces and search engines. We protect leading consumer goods, pharmaceutical, alcohol and FMCG brands across 10+ countries in the Americas, and we're expanding into India.