Senior Software Engineer

Fraud Deflect; Teletrabalho; BRL 120.000 - 150.000; Tempo integral

Resumo da oferta

A leading fintech company in Brazil is looking for a skilled Python Backend Engineer to take ownership of their API-first systems. You will lead the design, development, and operation of REST APIs, working closely with clients and internal teams to translate complex business workflows into reliable systems. The ideal candidate has strong analytical skills in data structures and extensive experience in integrating payment solutions, along with a solid DevOps mindset for managing services on Linux. Competitive salary and growth opportunities are provided.

Qualificações

• Expert Python backend engineer (3.12+ preferred) with strong typing and performance debugging skills.
• Proven experience in REST API development including design and production operations.
• Strong skills in data structures and API data modeling.

Responsabilidades

• Lead project execution, design technical implementations, and code reviews.
• Build and operate REST APIs in Python.
• Own API integrations with partners, including onboarding and validation.

Conhecimentos

Expert Python backend engineering

REST API development

Data structures and API data modeling

DevOps mindset

Client-facing communication

Ferramentas

Linux

Docker

Kubernetes

AWS

Descrição da oferta de emprego

Language: Native/fluent English. Resumes in English.

About the role

Own and evolve critical payments/back-office services end-to-end: design, build, ship, and operate API‑first Python systems that automate disputes/chargebacks and related workflows. You’ll partner directly with clients and internal teams to translate business rules into reliable integrations, services, and data models— leveraging Linux, with a pragmatic DevOps mindset.

Responsibilities

• Lead project execution: technical design, implementation plans, code reviews, and delivery coordination.
• Build and operate REST APIs in Python (versioning, idempotency, auth, webhooks, integrations).
• Own API integrations with external partners/processors: onboarding, validation, retries, error handling, and SLAs.
• Implement complex payments/chargeback business logic from requirements and client workflows; ensure correctness and auditability.
• Model API/domain data with strong data‑structure fundamentals (schemas, invariants, normalization/denormalization tradeoffs).
• Meet and maintain contact directly with clients.
• Operate services on Linux: deployments, debugging, performance tuning, incident response, and reliability improvements.
• Contribute to DevOps practices: CI/CD pipelines, safe rollouts, observability (logs/metrics/traces), and operational automation.

Required

• Expert Python backend engineer (3.12+ preferred): strong typing, testing, concurrency fundamentals, and performance debugging.
• Proven REST API development experience (design + production operations), including integrations and webhooks.
• Strong data structures and API data modeling skills (clear contracts, backward compatibility, validations).
• Experience implementing business logic for payments/fintech workflows, especially disputes/chargebacks and reconciliations.
• Comfortable on Linux servers with a DevOps mindset (deploy/run/debug production services; automate operational work).
• Client‑facing technical communication: can interface with external stakeholders to clarify requirements, diagnose issues, and drive resolutions.
• Ownership mentality and interest in leadership: drive the full lifecycle from discovery → design → build → operate.

Nice to have

• Containerization/orchestration (Docker/Kubernetes), IaC (Terraform), and cloud‑native operations on Amazon Web Services.
• Event‑driven/workflow systems (SQS/Kafka/Kinesis; Airflow/Prefect/Dagster).
• Security/compliance exposure (PCI, SOC 2) and observability tooling at scale.

How to apply

Send an English resume and links to relevant work (repos, API docs, architectural notes, or write-ups) showing:

• Python backend API development + real‑world API integrations
• Payments/disputes/chargebacks or similarly complex workflow automation
• Linux/DevOps experience running production services