Contractor Senior Backend Developer
12Go Asia is hiring a remote Contractor Senior Backend Developer. The career level for this job opening is Experienced and is accepting Poland, Armenia, Azerbaijan, Kazakhstan based applicants remotely. Read complete job description before applying.
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12Go Asia
Job Title
Senior Backend Developer
Posted
Career Level
Contractor
Career Level
Experienced
Locations Accepted
Poland, Armenia, Azerbaijan, Kazakhstan
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Job Details
Connect with us to connect the world. Are you prepared to join the R&D team at 12Go and help us build the leading online travel platform?
- Stack: PHP (primary), Rust (selected modules), JavaScript (auxiliary); MariaDB, Redis, Memcached, ClickHouse; CI/CD pipelines, code review, API versioning, Agile/Scrum.
- Designing and maintaining scalable backend services.
- Optimising performance in search and checkout flows under high concurrency.
- Writing robust automated tests (unit, functional, contract).
- Supporting production codebase that includes legacy components.
- 5+ years of backend engineering, with at least 3 years in PHP.
- Proven experience with high-load systems (performance tuning, caching strategies, DB optimisation).
- Solid algorithmic thinking.
- Familiarity with distributed systems concepts.
- Proactive problem-solver.
- Fluent English.
- Hands-on Rust experience.
- Background with geospatial data or ML-driven services.
- Degree in Computer Science / Software Engineering.
- Previous e-commerce or fintech experience.
- Engaging work on a product that enables millions of travelers to book their trips daily.
- Full-time remote working.
- Development opportunities.
- Internal growth and internal mobility opportunities.
- Competitive annual leave, sick leave, and public holidays.
- Annual company offsite in Thailand.
FAQs
What is the last date for applying to the job?
The deadline to apply for Contractor Senior Backend Developer at 12Go Asia is
20th of November 2025
. We consider jobs older than one month to have expired.
Which countries are accepted for this remote job?
This job accepts [
Poland, Armenia, Azerbaijan, Kazakhstan
] applicants. .
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