Senior Software Engineer

Fraud Deflect; Teletrabalho; BRL 365.000 - 470.000; Tempo integral

Resumo da oferta

A fintech company in Brazil is seeking a Senior Software Engineer to own and develop critical payments services. The role involves designing API-first Python systems, building REST APIs, and integrating with external partners while ensuring operational reliability. Candidates should have expertise in Python, REST API development, and familiarity with payments workflows. The company promotes a leadership mentality and offers the opportunity to work in a dynamic environment focused on backend solutions.

Qualificações

• 3+ years of experience in Python backend development.
• Proven track record of REST API design and operations.
• Familiarity with payments/fintech workflows, especially chargebacks.

Responsabilidades

• Lead project execution including technical design and delivery.
• Build and operate REST APIs in Python with focus on performance.
• Model API and domain data with strong fundamentals.

Conhecimentos

Expert Python backend engineer

REST API development experience

Strong data structures and API data modeling skills

Experience implementing business logic for payments workflows

Comfortable on Linux servers with a DevOps mindset

Client-facing technical communication

Ownership mentality and interest in leadership

Ferramentas

Docker

Kubernetes

Terraform

AWS

Descrição da oferta de emprego

Company: Fraud Deflect

Role: Senior Software Engineer

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).
• Develop and maintain client‑facing device intelligence instrumentation in JavaScript where needed (collection, privacy controls, performance).
• 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

• JavaScript experience beyond basics (instrumentation, performance, privacy‑aware collection) for client integrations.
• 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
• Any JavaScript instrumentation work and client‑facing delivery experience