Senior Backend Engineer — High-Volume Payments

Brilliant Systems; Lahore; On-site; PKR 2,500,000 - 4,200,000; Full time

Job summary

Brilliant Systems is seeking a skilled backend engineer to design and operate high‑volume services. You will ensure correctness under retries and partitions, own production systems with alerting and runbooks, and modernize legacy code through careful testing and incremental delivery.

You will mentor teammates, participate in red-team exercises, and help define when to wake the team for urgent incidents. Strong SQL and production‑grade backend experience are required.

Qualifications

• Experience with production backend systems in typed languages.
• Ability to explain idempotency concepts to clients.
• Experience with systems where failures cost money or trust.
• Test-first development mindset and rationale for tests.

Responsibilities

• Design and build services that stay correct under retries, partitions, and duplicate delivery.
• Own a production system, including alerting, runbooks, and clear wake-up criteria.
• Modernize legacy systems by characterizing, testing, and replacing in slices.
• Participate in red-team week and attempt to break what others built.
• Mentor peers, review changes, and be reviewed.

Skills

Distributed systems

Backend development

SQL proficiency

Idempotency

Job description

Brilliant Systems is seeking a skilled backend engineer to design and operate high‑volume services. You will ensure correctness under retries and partitions, own production systems with alerting and runbooks, and modernize legacy code through careful testing and incremental delivery.

You will mentor teammates, participate in red-team exercises, and help define when to wake the team for urgent incidents. Strong SQL and production‑grade backend experience are required.