Scalio — Senior Software Engineer - Backend — Application

Senior Software Engineer - Backend

Full-time | Bengaluru, India | On-site

Compensation: ₹30–60 LPA annual fixed salary

Scalio is building an AI marketing team for millions of small businesses. We’re looking for people who take ownership, build thoughtfully, and turn their work into measurable customer outcomes.

The role

Build and improve the services behind Scalio’s web and mobile products. Own backend features through design, implementation, rollout, and production support, with a focus on correctness and reliable execution.

What you’ll work on

• Production APIs and database-backed services.

• Background processing, provider integrations, and generation workflows.

• Query performance, caching, concurrency, and data consistency.

• Usage accounting and billing-related backend behavior.

• Tests, monitoring, safe releases, and incident resolution.

What we’re looking for

• 4+ years of professional software engineering experience.

• Strong API design, relational database, and asynchronous processing skills.

• Experience debugging production failures and performance bottlenecks.

• Ability to deliver maintainable changes in an existing codebase.

• Ownership of correctness, operational behavior, and customer impact.

Strong plus

High-volume background jobs, AI service integrations, payments, observability, and cloud infrastructure.

Application — all six answers required

Complete the application fields below, including your phone number with country code, résumé/CV link and all six answers. Include relevant links and clearly explain your personal contribution. Use concrete examples; generic answers will not stand out. Please omit confidential employer or customer information.

We care more about demonstrated work and results than degrees, company names, or familiarity with every tool.

Name *

Email *

Phone number (including country code) *

Résumé/CV link *

Relevant software engineering experience in years *

Are you willing to work full-time, on-site in Bengaluru? *

Yes

1. What is the most demanding backend service you have shipped? Explain your contribution, scale, and a difficult problem you solved. *

2. Share something you built and identify your personal contribution. *

3. An API’s latency doubles as traffic grows. How would you investigate, and what evidence would guide your first fix? *

4. How would you prevent duplicate processing and duplicate credit deductions when a job is retried? *

5. Describe a database migration or release you handled safely. How did you manage compatibility and recovery? *

6. Tell us about a production defect you caught through testing or monitoring. What did you change afterward? *

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