Senior Full-Stack Engineer

Note To Applicants

This position is open to candidates residing in Latin America. Please submit your CV in English; applications in other languages will not be considered. We encourage a Loom video for professional presentation, which is optional but grants priority. If hired, updating your LinkedIn profile may be requested.

About the Role

Our client is seeking a Senior Full-Stack Engineer with a strong builder and owner mindset. This role extends beyond just coding; you will be expected to deeply understand the business, take end-to-end ownership of products, and contribute to the thoughtful and sustainable scaling of the engineering team. You'll collaborate closely with a small, high-caliber engineering team, exerting significant influence over architecture, product decisions, and execution.

Tech Stack & Responsibilities

Backend:

• TypeScript (NestJS, Express)
• PostgreSQL: schema design, migrations, 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 Senior 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 & Compensation

This is a full-time position, Monday to Friday, with compensation paid in USD. It's a 100% remote opportunity.

Key skills/competency

• Full-Stack Development
• TypeScript
• React.js
• Next.js
• PostgreSQL
• AWS
• LLM Integration
• Data Pipelines
• Terraform
• Product Ownership