Go backend engineering
APIs and microservices in Go — schema design, concurrency, in-process queues with back-pressure, background workers and structured logging. Written to be read by the next engineer.
Noida, India · working with clients worldwide
Go, cloud and AI systems — engineered to hold under load.
Tyagi Tech Consulting is a technology practice led by Arvind Tyagi — seventeen years building and running the systems that global banks, ad-tech platforms and public institutions depend on. We take on the work that has to survive real traffic, a real audit and the year after launch.
Built in Go · deployed serverless
Observed · logged · backed up
Documented · handed over
17 yrs
Across enterprise ERP, cloud-native engineering and technology leadership.
1M+
Commission reports served by the affiliate-commerce platform we architected.
~40%
Monthly cloud spend removed by one planned estate migration.
11
Engineers hired, trained and led — freshers grown into delivery contributors.
01 — Services
What we take on
Nine practice areas, one principle: we only take work we can see through to production and then hand over cleanly. No reselling, no bench, no surprises on the invoice.
Cloud architecture & migration
Serverless and container platforms on GCP and AWS — Cloud Run, Cloud SQL, CI/CD, secrets, backups and monitoring. Including full estate moves between providers, planned to land without downtime.
Cloud cost & FinOps review
A hard look at what you are actually paying for: right-sizing, idle estate, egress, licensing and currency. We have cut a monthly bill by roughly 40% and moved billing out of USD — and we will tell you when there is nothing left to cut.
AI engineering & automation
LLM-backed features that earn their cost — document and data extraction, assistants over your own systems, and agentic automations wired into real APIs. Plus enabling your team on AI-assisted development, which we have run in production workflow since 2025.
Enterprise applications & ERP
PeopleSoft FSCM 9.1/9.2 — General Ledger, Asset Management, Receivables, Billing, Lease Administration, AP and T&E. Functional support, upgrades, allocations, nVision and SQR reporting, and integrations out to the rest of the estate.
Data integration & pipelines
Ingesting from many sources that disagree with each other — normalising heterogeneous formats, attributing records correctly, reconciling at the end of the run, and keeping the identities that must stay hidden, hidden.
Analytics & reporting
Metabase stood up properly, plus custom analytics engines when an off-the-shelf dashboard cannot answer the question — such as surfacing the winning products to the people who sell them.
Governance & audit readiness
SOX control ownership, evidence packs and Big-4 auditor liaison; SDLC, change and release governance; vendor, SOW and handover management. Nine years of doing this inside a global bank, not from a template.
Fractional leadership & team building
Part-time Head of Engineering for teams that have outgrown ad-hoc: hiring and onboarding, coding standards, code review discipline, and turning fresh graduates into engineers who ship on their own.
02 — Engagement
Four ways to work with us
Every engagement starts with a short, free scoping call. If the work is not a fit, we will say so — and where we can, point you at someone it does fit.
Model 01
Fixed-scope project
A defined outcome, a written scope, a price and a date. Best when you know what you need built and want the risk on our side of the table.
Model 02
Monthly retainer
A reserved block of engineering time each month for ongoing build, maintenance and on-call-adjacent support. Unused hours are discussed, not silently billed.
Model 03
Advisory sprint
Two focused weeks producing one document you can act on: an architecture review, a cloud-cost teardown, an audit-readiness assessment or a build-versus-buy call.
Model 04
Fractional leadership
One to three days a week owning your engineering function — standards, hiring, delivery and vendor accountability — until you are ready to hire it full-time.
03 — How it runs
Scope, build, hand over
The last step is the one most consultancies skip. We have done a full code-and-data handover to a successor vendor — and we build every engagement assuming that day comes.
Scope
A call, then a written note back: what we understood, what we would build, what we would not, and what it costs.
Design
Data model, interfaces and failure modes on paper before code. Agreed with you, not presented to you.
Build
Short increments you can see running. Code review, tests where they earn their keep, and an environment you control.
Operate
Deploy, observe, back up, tune cost. We stay on through the first weeks of real traffic, when the real bugs arrive.
Hand over
Repository, credentials, runbook and a walkthrough with your team. You own everything. No lock-in by obscurity.
04 — Track record
Work behind the firm
Tyagi Tech Consulting was registered in 2026. The work below was delivered by Arvind in-house at the organisations named — it is the evidence for what we now take on as a firm.
Affiliate commerce · US marketing platform
An affiliate-commerce platform, from architecture to production releases
Product catalogue, affiliate link generation and commission reporting for a major US online-marketing company — built on Go and Gin with PostgreSQL and Redis, deployed serverless on Cloud Run with Cloud SQL. Multi-network ingestion normalised formats that disagreed with each other, and attribution logic paid the right affiliate while keeping affiliate identity hidden from the source networks.
Go · GinPostgreSQLRedisCloud RunCloud SQL
1M+commission reports handled
10k+products in the catalogue
3 yrsof production releases, through Jul 2026
Cloud economics · full estate migration
Moving a server estate — and taking 40% off the monthly bill
Planned and executed the migration of an entire cloud server estate from an overseas provider to an Indian cloud vendor: inventory, dependency mapping, cutover sequencing and post-move consolidation of Linux and Windows hosts under one maintenance regime. Billing moved from USD to INR, removing currency exposure, and the organisation took full ownership of its own data.
Linux · UbuntuWindows Serverbackup automationFinOps
~40%monthly cloud spend removed
USD → INRbilling currency exposure closed
100%data ownership repatriated
Public institution · fixed national dates
Admit cards and results, on dates that could not move
Served as the accountable technology vendor to the Institute of Company Secretaries of India for admit-card and results releases on fixed national dates, twice a year — the kind of deadline where tens of thousands of candidates arrive at once and there is no second window. Also managed the contract close and a complete code-and-data handover to the successor vendor.
capacity planningrelease governancevendor accountabilityhandover
2×/yrimmovable national release dates
Cleancode and data handover at exit
Global banking · Finance ERP
Nine years on a global bank's Finance ERP, under SOX and Big-4 audit
Functional support lead and then Senior Project Manager (AVP) for PeopleSoft Finance at Credit Suisse — General Ledger, Asset Management, Receivables, Billing and Lease Administration, serving finance stakeholders worldwide. Led India- and US-based consultants, owned incident, change and release governance, carried the SOX controls for the platform, and acted as liaison to the Big-4 external auditors.
PeopleSoft FSCMSOX controlsBig-4 auditPython automation
9 yrson one global finance platform
5 modulesGL, AM, AR, Billing, Lease Admin
Audit-cleancontrol ownership and evidence
05 — Capability
The stack we actually use
Not a list of everything we have heard of. These are the tools we have shipped and operated with, and would be comfortable being audited on.
Languages
- Go
- Python
- SQL
- PHP
- JavaScript
- PeopleCode
- SQR
Backend & data
- Gin
- REST APIs
- goroutines · channels
- background workers
- PostgreSQL
- Redis
- SQLite
Cloud & platform
- GCP Cloud Run
- Cloud SQL
- AWS
- Cloudflare Workers
- Docker
- CI/CD
- Ubuntu Linux
- Windows Server
Enterprise
- PeopleSoft FSCM 9.1 / 9.2
- General Ledger
- Asset Management
- Receivables · Billing
- Lease Administration
- App Engine
- Integration Broker
- nVision · PS Query
- Workday integrations
AI & analytics
- Claude API
- Claude Code
- Gemini
- LLM app design
- agentic automation
- Metabase
- custom analytics engines
Governance
- SOX controls
- Big-4 audit liaison
- SDLC governance
- change & release
- vendor & SOW management
- Agile · hybrid delivery
06 — Who you'll work with
There is no bench here
You talk to the person who writes the code and signs the invoice. When an engagement needs more hands, we say so up front and name who is joining.
I started in 2009 writing LAMP web pages, spent a decade deep inside enterprise finance systems at Hexaware, Infosys and Credit Suisse, and then spent three years building a cloud-native engineering function from almost nothing — hiring the team, choosing the stack, and staying the primary author and reviewer of the backend code while I did it.
That combination is the reason this firm exists. Plenty of people can write a Go service. Fewer have also sat opposite a Big-4 auditor and defended a control, taken accountability for a release date that tens of thousands of people were waiting on, or explained to a finance director exactly why the cloud bill is what it is — and then removed 40% of it.
Tyagi Tech Consulting takes on the work where those two halves meet: systems that must be well engineered and defensible.
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Tyagi Tech Consulting — Proprietor
Jul 2026 – present · Noida
Backend engineering, cloud infrastructure and enterprise integration for domestic and overseas clients.
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vCommission / BVC eServices — Head of Technical Solutions
Jun 2023 – Jun 2026 · Gurugram
Built and led an 11-person engineering function. Owned the full stack: Go microservices, PostgreSQL, Redis, GCP Cloud Run. Cut cloud spend ~40%. Accountable vendor for national results releases.
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Credit Suisse — Senior Project Manager (AVP), PeopleSoft Finance
Sep 2014 – Jun 2023 · Pune
Led global Finance ERP application support across GL, AM, AR, Billing and Lease Administration. SOX control owner and Big-4 audit liaison.
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Infosys — Senior Associate Consultant
Dec 2011 – Sep 2014
PeopleSoft 9.1 upgrade analyst for a banking client; technical lead for General Ledger and allocations on a retail implementation.
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Hexaware Technologies — Senior Software Engineer
Sep 2009 – Dec 2011
Bolt-on SQRs and interfaces; internal PeopleSoft Finance support across GL, T&E and AP.
Let's talk
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