backend developer
Kintai
Barcelona, Spain
12 days ago
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Role details
Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience required
6 years minimum
Working hours
Shift work
Job source
Tech stack
Amazon Web Services
Amazon S3
Cloud Computing Security
Amazon DynamoDB
Identity and Access Management
Python (Programming Language)
Node.Js
NoSQL
Prometheus
SQL Databases
TypeScript
Web Services
+10 more
Grafana
Backend
Servicebus
Amazon Relational Database Service
Apache Kafka
Functional Programming
Cloudwatch
Api Gateway
Amazon Simple Queue Service (SQS)
Terraform
Job description
- Design and implement microservices and REST/GraphQL APIs mainly in TypeScript (Node.Js) and Python;
- Build event-driven solutions integrating queues and streams such as SQS/SNS, Kinesis/EventBridge, or Kafka;
- Orchestrate processes using BPM and Step Functions;
- Design and operate AWS components including Lambda, API Gateway, S3, RDS/DynamoDB, and IAM, focusing on security, cost, and resilience;
- Define Infrastructure as Code with Terraform or CDK;
- Maintain CI/CD pipelines;
- Ensure quality and observability;
- Collaborate with the Product Owner to prioritize, estimate, and self-manage work in an agile environment;
- Document architectural decisions and best practices to improve maintainability.
Requirements
- 6+ Years of professional backend experience;
- Strong proficiency in TypeScript/Node.Js;
- Solid experience with Python;
- Experience creating and operating APIs and services in production;
- Advanced knowledge of AWS, including Lambda, API Gateway, S3, RDS/DynamoDB, IAM, EventBridge, and other typical backend services;
- Experience with messaging, streams, and integration patterns;
- Experience with SQL and NoSQL databases;
- Excellent organizational skills, autonomy, responsibility, and a habit of keeping up with the state of the art;
- Clear communication and a product-focused approach centered on business impact, metrics, and reliability;
- Nice to have: Experience in fintech, open banking, payments, or risk;
- Observability with CloudWatch, OpenTelemetry, or Prometheus/Grafana;
- Cloud security with KMS, Secrets Manager, or least-privilege IAM policies;
- Knowledge of DDD or hexagonal architecture.
Benefits & conditions
- Indefinite contract from the start
- Flexible working hours
- Intensive Fridays in summer
- Offices near the beach with a canteen, large terraces, gym, game room, climbing wall, and pool
- Flexible compensation plan with Cobee
- Health insurance paid by Kintai
- Two team events per year and many after-work events
full_time
Organization Enfint
About the company
Описание: Kintai helps small and medium-sized businesses and self-employed professionals access working capital as a flexible alternative to traditional financing. The company develops a fintech product designed to support business growth and day-to-day financial needs.
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