Backend Migration Consultant

This is a consultant role with an initial 3-month contract and the possibility of extension. Competitive rates are offered. The consultant is expected to work onsite at the Bengaluru office 2 days per week. All travel and related expenses will be covered.

The consultant will assist with:

Leading backend and application migration projects across technology stacks, including ETL, middleware, backend job orchestration platforms, and related systems.
Refactoring and adapting code for new platforms and architectures.
Designing and executing data migration strategies.
Ensuring API compatibility and service continuity throughout migration activities.
Optimizing performance, scalability, and reliability following migration.
Developing automation scripts to support migration activities.
Collaborating closely with Product, Systems, and Engineering teams.
Mentoring developers and supporting technical decision-making.

Day-to-Day Responsibilities

Analyse existing applications and identify migration impact areas.
Develop and modify backend services, primarily using Python and related technologies.
Create scripts for data migration, validation, transformation, and cleanup.
Collaborate with System Engineers, DevOps teams, and QA teams.
Troubleshoot migration issues, defects, and performance bottlenecks.
Execute, monitor, and validate migration jobs and ensure data integrity.
Participate in code reviews and technical discussions.
Maintain migration documentation and provide regular progress/status updates.

Engagement Details

Hourly rate: Approximately one-third of the equivalent onshore rate.

Required Skills & Experience

Strong proficiency in Python and scripting languages (Bash/Shell).
Experience with database migration, ETL processes, and data transformation.
Familiarity with both legacy and modern technology stacks.
Good understanding of microservices, APIs, and distributed systems.
Experience working with middleware technologies such as messaging systems and API gateways.
Knowledge of cloud platforms, containerisation (Docker/Kubernetes), and CI/CD pipelines.
Strong debugging, troubleshooting, problem-solving, and performance optimisation skills.

Key Requirements (Most Important)

1. Hands-On Migration Experience

Application migrations
Database migrations
Integration migrations

2. Strong Python & Automation Skills

Python development
Scripting and automation
Data handling and transformation

3. Backend Modernisation Expertise

Ability to understand complex legacy systems
Refactoring and modernising backend applications
Migrating solutions to open-source technologies