Backend Engineer (Python/Go/Node) - Build Resilient Systems

Antler Co; Karachi Division; On-site; PKR 180,000 - 240,000; Full time

Benefits offered by this job

Medical coverage

Gratuity

Annual travel allowance

Learning and development

Job summary

Sastaticket.pk, located in Karachi, Pakistan, seeks a Backend Engineer with Python/Go/Node.js expertise to design and operate backend services across multiple stacks. You will model data, build event-driven flows, and integrate third‑party systems while ensuring robustness in production environments.

The role emphasizes ownership, depth in at least one stack, and momentum to grow across architectures. A strong focus on testing, observability, and collaboration with Product is expected.

Qualifications

• BS in Computer Science or a similar degree.
• 3+ years of professional backend engineering experience.
• Genuine depth in at least one of Python (Django/DRF), Go, or Node.js — and the ability and willingness to become productive in another.
• Solid computer science fundamentals: data structures, concurrency, algorithmic reasoning, and runtime costs.
• Strong relational database skills, particularly PostgreSQL — schema design, query optimization, transactions, and safe migrations.
• Practical experience designing and building REST APIs that other teams and services consume.
• Working knowledge of asynchronous processing, message queues, or event streaming such as Apache Pulsar or Kafka.
• Experience with caching layers such as Redis, and sound judgment about when caching helps and when it hides problems.
• Hands-on experience with Docker and version control workflows using Git.
• A disciplined approach to testing, code review, documentation, and production quality.
• Demonstrated problem-solving ability, clear communication, and a proactive ownership mindset.

Responsibilities

• Design, build, and operate backend services and APIs that are correct under real production load, not just under happy-path testing.
• Model data deliberately — schema design, indexing, query performance, and migration safety in PostgreSQL.
• Build event-driven flows using Pulsar, queues, and background workers with explicit consideration of ordering, retries, idempotency, and partial failure.
• Integrate third-party systems — airline and supplier APIs, payment gateways, partner platforms — and ensure predictable behavior amidst latency and downtime.
• Apply caching, connection management, and concurrency patterns with awareness of trade-offs.
• Containerize and ship services with Docker and Kubernetes, taking ownership once running.
• Instrument with logging, metrics, and tracing for proactive failure detection.
• Write tests, perform code reviews, and keep documentation current.
• Contribute to architectural discussions and pragmatic technology choices across stacks.
• Partner with Product to surface trade-offs and connect technical decisions to business impact.
• Mentor engineers, share knowledge, and reduce technical debt.

Skills

Python

Go

Node.js

PostgreSQL

Redis

Docker

Kubernetes

REST APIs

Apache Pulsar

Kafka

Education

Bachelor's degree in Computer Science

Tools

PostgreSQL

Redis

Docker

Kubernetes

Apache Pulsar

Kafka

Job description

Sastaticket.pk, located in Karachi, Pakistan, seeks a Backend Engineer with Python/Go/Node.js expertise to design and operate backend services across multiple stacks. You will model data, build event-driven flows, and integrate third‑party systems while ensuring robustness in production environments.

The role emphasizes ownership, depth in at least one stack, and momentum to grow across architectures. A strong focus on testing, observability, and collaboration with Product is expected.