Python and Node.js Backend developer

Senior Backend Software Engineer

We're looking for entrepreneurial and driven software engineers with Python and JavaScript / Node.js knowledge.

Location : Remote

Experience Level :

Senior (5+ years of professional experience)

Our client is an early-stage, fast-moving team that builds intelligent, data-driven systems to power modern digital marketing systems.

We care deeply about architecture, scalability, and maintainability — not just shipping fast but shipping well.

We design our systems using clean, modular principles such as Domain-Driven Design, Onion Architecture, and Clean Architecture to ensure that our software adapts and evolves gracefully as we grow.

Who We’re Looking For

We are looking for a Senior Backend Engineer with proven experience in building and deploying production-grade applications from start to finish. You will have meaningful ownership of our backend systems, from architecture and design to development, deployment, and monitoring.

You’ll be a great fit if :

• You take full ownership of projects, understanding both the technical and business context while ensuring timely and reliable delivery.
• You are a proactive problem-solver who thrives in uncertainty, identifies risks early, and takes initiative to move things forward.
• You value clean, testable, and maintainable code and believe good architecture makes teams faster and more effective.

What You’ll Do

Design, build, and deploy backend systems using modern software architecture practices and code that can be easily maintained and extended.

Collaborate with experts to define our domain model and ensure clear separation of concerns through principles inspired by Domain-Driven Design and Onion Architecture.

Collaborate with data and frontend engineers to design efficient interfaces and data flows.

Ensure scalability, security, and performance in all production environments.

Participate in code reviews, technical discussions, and architectural planning.

What We’re Looking For

Core Technical Skills

Languages : Python and JavaScript (Node.js)

Databases : SQL and NoSQL systems such as PostgreSQL, BigQuery, and Firestore

Architecture : Strong understanding of system design, OOP, modular architectures, and clean layering, including DDD and Onion / Clean Architecture principles

API Design : Experience with RESTful APIs, background jobs, and event-driven or message-based patterns

Data Handling : Ability to design and optimize complex data models, queries, and pipelines

Nice to Have

Familiarity with third-party API integrations such as Shopify, Facebook Ads, or Google Ads

Experience with machine learning pipelines or model fine-tuning

Agentic frameworks : Experience with Pydantic-AI or similar, agent architectures, graph execution, evaluation, and user interface integration

Experience working with Google Cloud Platform services such as BigQuery, Pub / Sub, Redis, or Cloud Run

What You’ll Get

Meaningful ownership of production systems that impact real users

The opportunity to shape the architectural foundation of a growing platform

A collaborative team that values quality, craftsmanship, and thoughtful engineering

Flexible work setup and a culture built on autonomy, trust, and shared growth

A resume / GitHub / Linkedin profile, showcasing or outlining your work and professional experiences

A short note or even a video to tell us why you think you are a great fit for us