Python Developer

3 days ago


Ho Chi Minh City, Ho Chi Minh, Vietnam HIRE RIGHT CONSULTING Full time

Location:
Onsite District 2

Interview Process:
2 rounds

Rate:
35-40M

About the Role

We are looking for a highly skilled
Python Engineer
with strong experience in
building and optimizing payment systems
. You will be responsible for designing, developing, and maintaining scalable backend services, focusing on
transaction integrity, payment integrations, and high availability
.

You will work independently while collaborating closely with cross-functional teams on
API architecture, data consistency, background processing, and observability setup
.

Key Responsibilities

  • Design, develop, and optimize
    complex API services
    (idempotency, retries, webhooks).
  • Build and maintain
    transactional flows
    on PostgreSQL ensuring ACID compliance.
  • Design and optimize
    database schemas
    , indexes, and constraints.
  • Implement
    background jobs
    (reconciliation, retry queues) and asynchronous workflows.
  • Establish
    observability practices
    : metrics, logging, and distributed tracing.
  • Own and maintain
    payment modules
    , admin console, and gateway integrations.
  • Troubleshoot system performance, scalability, and reliability issues.
  • Contribute to
    solution architecture
    and
    mentor junior developers
    .

Mandatory Requirements

  • Proficiency in Python
    with strong hands-on experience using
    FastAPI
    (or similar frameworks).
  • At least
    2 years
    of experience
  • Proven experience working on
    payment systems
    in production (at least one live project).
  • Strong knowledge of
    distributed systems
    ,
    concurrency
    , and
    transactional integrity
    .
  • Deep understanding of
    PostgreSQL
    (schemas, indexes, constraints, JSONB).
  • Knowledge of
    idempotency
    ,
    deduplication
    ,
    webhooks
    , and
    security best practices
    (TLS, JWT).
  • Experience implementing
    asynchronous tasks
    using
    Celery
    ,
    RQ
    , or
    asyncio background tasks
    .

Preferred Qualifications

  • Familiarity with
    payment gateways
    (Stripe, Adyen, PayPal, local PSPs) and
    PCI compliance basics
    .
  • Experience designing APIs at scale (API gateway, rate limiting, multi-tenant architectures).
  • Hands-on experience with
    Redis
    ,
    Kafka/RabbitMQ
    , or
    MongoDB (motor)
    .
  • Working knowledge of
    Kubernetes
    (deployments, services, ConfigMap, Secrets).

Why Join Us

  • Work on
    cutting-edge payment and fintech systems
    with high scalability.
  • Long-term engagement
    with growth and leadership opportunities.
  • Competitive compensation and performance-based rewards.

How to Apply

Please send your updated
CV (in English)
to

with the subject line:
Application – Senior Python Developer.


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