Hi there! We are South and our client is looking for a Senior Full-Stack Engineer!

Note To Applicants

• Eligibility: This position is open to candidates residing in Latin America.
• Application Language: Please submit your CV in English. Applications submitted in other languages will not be considered.
• Professional Presentation: We encourage you to showcase your professional experience by including a Loom video in the application form. While this is optional, candidates who provide a video presentation will be given priority.
• Note: If you're hired for this role, you may be asked to update your LinkedIn profile :)
  
  

Our client is looking for a Senior Full-Stack Engineer with a strong builder and owner mindset. This is not just a coding role — the engineer will be expected to understand the business, take ownership of products end-to-end, and contribute to scaling the engineering team in a thoughtful, sustainable way.

The role involves working closely with a small, high-caliber engineering team and having real influence over architecture, product decisions, and execution.

Tech Stack & Responsibilities

Backend

• TypeScript (NestJS, Express)
• PostgreSQL: schema design, migrations, and query optimization
• REST API design and implementation
• Redis for caching and background jobs (Bull, SQS)
• Authentication & authorization (JWT, RBAC)
  
  

Frontend

• Next.js (Pages Router & App Router), React 18/19
• State management: Redux Toolkit, TanStack Query
• Building data-heavy UIs (tables, dashboards, charts)
• Tailwind CSS, Radix UI or similar component systems
  
  

Data & Pipelines

• Python (Pandas, FastAPI)
• Data pipelines and orchestration (Dagster or similar)
• Processing large structured and semi-structured datasets
• Strong SQL for complex transformations
  
  

AI / ML

• Experience integrating LLMs (OpenAI, Anthropic) into production
• Familiarity with embeddings, semantic search, and conversational flows
  
  

Infrastructure & DevOps

• AWS (ECS Fargate, S3, SQS, Lambda, Secrets Manager)
• Infrastructure as Code (Terraform or similar)
• Containerized deployments and CI/CD
• Observability (OpenTelemetry, Prometheus, Grafana)
  
  

Security & Compliance

• SOC 2–aware development practices
• Secure system design, audit logging, encrypted transport
  
  

Key Requirements

• 5–6 years of professional experience as a Full-Stack Engineer
• Strong sense of ownership and product/business awareness
• Experience building backend services using TypeScript (NestJS/Express), PostgreSQL, REST APIs, and Redis (queues & caching), including authentication/authorization (JWT/RBAC)
• Experience developing modern frontends with Next.js and React (18/19), state management (Redux Toolkit or TanStack Query), and data-heavy interfaces using Tailwind/Radix or similar
• Experience working with data processing using Python (Pandas/FastAPI), complex SQL transformations, and data pipelines (Dagster or similar)
• Hands-on experience integrating LLMs (OpenAI/Anthropic) into production systems, including embeddings and semantic search workflows
• Experience deploying and operating systems in AWS (ECS, S3, SQS, Lambda) using Infrastructure as Code (Terraform), containers, CI/CD, and observability tooling
• Knowledge of secure development practices, including SOC 2–aware architecture and secure system design
• Required: engineering degree
• Comfortable working in a growing startup environment with real responsibility
  
  

Nice to Have

• Feature flag systems (LaunchDarkly or similar)
• Monorepo management across multiple languages/runtimes
  
  

Schedule: Monday to Friday, full-time

Compensation: Paid in USD

Location: 100% remote opportunity

If this opportunity sounds good to you, send us your resume!