We are seeking a Senior Back-End Developer to build and optimise the APIs, data models, and services powering ProVision. The role focuses on Python/Django, AWS, distributed systems, performance, and clean architecture.
What You’ll Be Doing
- Design and implement RESTful APIs with Python 3.10+, Django 4.x, and Django REST Framework;
- Develop scalable data models and queries using PostgreSQL, Redis, and Elasticsearch/OpenSearch;
- Build background and asynchronous tasks with Celery, SQS, and Lambda;
- Integrate AWS services including S3, SNS/SQS, CloudFront, ECS, and RDS;
- Participate in code reviews and maintain secure, well-documented services;
- Collaborate with DevOps on CI/CD and infrastructure automation;
- Contribute to architecture, scalability, and performance optimisation.
Must-Have Requirements
- 10+ years of software development experience, preferably in SaaS;
- Strong Python 3.10+, Django 4.x, and Django REST Framework experience;
- Strong system design and software architecture skills, with experience building scalable systems on AWS;
- Hands-on experience with ECS, Lambda, S3, CloudFront, and RDS;
- Strong experience with PostgreSQL, Redis, Elasticsearch/OpenSearch, Celery, and SQS/SNS;
- Experience with Git, CI/CD, and Agile/Scrum;
- English B2+ for daily communication.
Preferred Requirements
- Experience with Terraform, Docker, Kubernetes, or AWS developer tooling;
- Knowledge of authentication, RBAC, and multi-tenant architecture;
- Experience with pytest, linting, pre-commit, and CI quality checks;
- Experience with text/document processing libraries such as pdfplumber, PyPDF2, or docxtpl;
- Familiarity with observability and monitoring tools such as CloudWatch, Sentry, and Prometheus;
- Experience with secure key management such as KMS or SOPS;
- Experience improving codebase reliability, architecture, or developer experience.
How We Work
- Scrum teams working on a shared multi-tenant platform;
- Requirements documented by QA and BA in Jira/Confluence;
- AI-assisted development with mandatory human review;
- Architecture supported by a dedicated architect;
- Manual and automated QA;
- Scheduled releases managed by the Delivery team.
We offer
- Maximum flexibility;
- Professional trainings, conferences and certifications;
- Corporate events and benefits;
- Professional literature;
- English courses.
If you are interested, please let us know job@zfort.com