Aravind Balaji Krishnan

S

Principal Engineer at TCS · Go, idempotency

TCS
Chennai, India · IST (UTC+5:30)
12+ years experience
St. Xavier's College, Mumbai
English, Hindi, Tamil
Advising
Messaging unavailable

Overview

Currently at TCS, where I work on payments infrastructure. Took payment success rates from 91.3% to 97.6%. Most at home with Go and REST.

Good reasons to reach out
  • Advice on healthcare
  • Speaking or podcast invitations
  • Second opinions on Go decisions
  • Working sessions on gRPC
Please don't message about
  • Decks without a clear ask
  • Offshore staffing offers
  • SEO and link-building offers

Replies between meetings, usually same day

Skills
gRPCRESTGoidempotencyPCI DSS
AdvisingOpen to advising
closes in 3 months

Office hours for early-stage teams: payments infrastructure and REST

Topics
healthcare, Go, PCI DSS
Format
Async reviews
Terms
Open to discuss
Capacity
One call a month
Best for
Teams scaling past 50 people

19 years of payments infrastructure. Prefer specific questions over coffee chats.

Chennai, India · remote OKrestpci dssidempotency
Open

Experience

  1. Principal Engineer
    Feb 2026 - Present
    TCS · 8 mo · Full-time · Chennai, India
    • Previously an operator for 5 years before investing.
    • Led or co-led 19 investments, 5 of them now at Series B or later.
  2. Senior Backend Engineer
    Jun 2022 - Feb 2026
    SAP · 3 yr 8 mo · Contract · Chennai, India
    • Wrote the idempotency service that now handles 6 million requests a day.
    • Shipped 6 launches on the payments platform team without a rollback.
  3. Senior Backend Engineer
    Apr 2020 - Jun 2022
    Google · 2 yr 2 mo · Contract · Chennai, India
    • Cut p99 latency on the payments platform services from 692ms to 122ms.
    • Brought on-call pages for payments platform down from 33 a week to 3.
  4. Engineering Manager
    Aug 2016 - Apr 2020
    InMobi · 3 yr 8 mo · Full-time · Chennai, India
    • Built the experimentation framework 25 product teams use to ship changes safely.
    • Took payment success rates from 94.6% to 96.5%.
  5. Staff Backend Engineer
    Mar 2015 - Aug 2016
    Walmart Global Tech · 1 yr 5 mo · Contract · Chennai, India
    • Moved 71% of payments platform traffic off a legacy monolith without a customer-facing incident.
    • Led the migration of 42 services to PCI DSS.

References

No references yet.

Education

  1. St. Xavier's College, Mumbai
    B.A., Computer Engineering
    2002 - 2006

Details

Compensation expectations
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