Senior Backend Engineer — Fintech (Golang, Stripe & APIs)

Talently; Argentina; Remote; ARS 1,500,000 - 2,700,000; Full time

Job summary

Talently is seeking a Senior Backend Engineer to build, scale, and secure high-performance services using Golang and PostgreSQL. You will design and optimize RESTful and GraphQL APIs, implement secure payment workflows with Stripe, and develop scalable microservices with strong observability.

Ideal candidates have 5+ years in backend development, deep PostgreSQL expertise, and hands-on fintech experience, including payment integrations and cloud-native workflows with Docker, Kubernetes, Redis,

Qualifications

• 5+ years of backend development experience, with exceptional candidates 3–4 years will be considered.
• Strong experience with PostgreSQL, including design, optimization, indexing, and performance tuning.
• Experience integrating payment systems or financial APIs, fintech-oriented environments preferred.
• Experience designing and maintaining RESTful APIs and microservice-based architectures.
• Solid understanding of distributed systems, scalability, reliability, and fault tolerance.
• Familiarity with cloud-native infrastructure, including Docker, Kubernetes, Redis, and message queues.
• Knowledge of authentication, authorization, and backend security practices.
• Strong problem-solving skills, ownership, and ability to work independently in a fast-paced environment.
• Nice to have fintech/payments experience, Stripe or similar providers, and AI/LLM integrations.

Skills

Golang

PostgreSQL

RESTful APIs

GraphQL

Kubernetes

Docker

Redis

Microservices

Distributed systems

Security

Authentication

CI/CD

Terraform

Stripe integration

Payment systems

AI/LLM exposure

Kafka

NATS

RabbitMQ

Gin framework

Tools

Gin framework

Stripe

Terraform

Kafka

NATS

RabbitMQ

Git

Job description

Talently is seeking a Senior Backend Engineer to build, scale, and secure high-performance services using Golang and PostgreSQL. You will design and optimize RESTful and GraphQL APIs, implement secure payment workflows with Stripe, and develop scalable microservices with strong observability.

Ideal candidates have 5+ years in backend development, deep PostgreSQL expertise, and hands-on fintech experience, including payment integrations and cloud-native workflows with Docker, Kubernetes, Redis,