Functional Consultant – GST / Indirect Tax (Tax-Tech)

Kevin Shah & Associates; Mumbai; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

Kevin Shah & Associates is a Mumbai-based GST compliance firm building a GST software through Kat Compliance Karma Pvt. Ltd. The role owns the entire documentation-to-testing chain, producing complete FSDs, and ensuring precise cross-team communication.

You will document GST rules, engage with the tech team, finalize UI/UX, and design compliant test data to verify correct data flows per GST rules. Strong discipline and ownership are required.

Qualifications

• GST domain depth with returns and ITC, GSTR-1/3B/6 knowledge.
• Ability to convert domain knowledge into a rigorous FSD.
• Experience briefing BAs and enforcing documented scope.
• Design compliant test data and validation plans.
• Excel and structured data handling proficiency.
• Strong documentation discipline and version control.

Responsibilities

• Own the documentation-to-testing chain for GST product.
• Create complete FSD capturing all rules and data flows.
• Explain FSD to tech team BA and align on scope.
• Incorporate resolutions into build-ready FSD.
• Finalize UI/UX in parallel and obtain approvals.
• Prepare test data and plan internal testing per release.
• Maintain organized repository of documents and data.
• Keep communications precise and on-record.
• Lead project with accountability and discipline.

Education

Chartered Accountant (CA) or indirect-tax specialist

Job description

Kevin Shah & Associates (KSAA) is a growing legal firm based in Mumbai, founded by experienced professionals from diverse fields. The firm offers cross-practice services with strong expertise in Indirect Taxation and International Trade & Customs. KSAA is client-centric, focused on providing practical, high-quality, and cost-efficient solutions tailored to each client’s needs. The firm emphasizes partner involvement, transparent processes, and long-term relationships, making it a trusted choice for clients. KSAA also has its Tech Vertical called Kat Compliance Karma Pvt. Ltd. for which it is seeking a Functional Role. The said Company is into developing a GST Software.

Reports to: Founder & CEO (source of the GST knowledge download)

Works with: Tech team Business Analyst (BA), UI/UX team, and the development vendor

Nature of role: Individual owner of the documentation-to-testing chain; the accountable custodian of every FSD and its data.

Core Responsibility

The responsibilities below follow the exact workflow this role must run, end to end:

• Receive the GST knowledge download from the CEO on each GST form/return and absorb it fully.
• Document that knowledge and go deep into the subject — researching and resolving every rule, condition and edge case — until a complete Functional Specification Document (FSD) is prepared.
• Explain the prepared FSD to the tech team’s Business Analyst clearly and completely.
• Ensure no explanation, assumption or build goes beyond what is documented in the FSD. Any gap surfaced during explanation is taken back into the document, not handled verbally.
• Produce the next (build-ready) version of the FSD incorporating those resolutions, to be handed to development.
• Finalise the UI/UX in parallel and obtain approval before development proceeds.
• Prepare test data and plan internal testing after each release. As this is a GST compliance product, testing verifies that compliance data flows into the correct bucket — not unit or functional testing. The test is whether the right data lands in the right place per GST rules.
• Own all documents produced, and store every data set and shared artifact in a clean, organised, retrievable manner.
• Keep email and written communication crisp, precise and on-record.
• Run the project and the team with discipline, ownership and full accountability for delivery.

What Success Looks Like:

Documentation integrity: Every GST rule from the knowledge download is captured in the FSD; nothing critical lives only in conversation.

No scope drift: The built product matches the FSD. Deviations are caught at explanation stage and documented, never allowed through informally.

Compliance-correct testing: Test data proves that compliance data reaches the correct bucket under GST rules, across valid, invalid, encoded and edge cases.

Clean records: All FSDs, versions, approvals and data sets are stored elegantly and can be retrieved instantly. Communication is crisp and on-record.

Reliable delivery: The project and team run on documentation and discipline rather than on the CEO’s constant involvement.

Required Skills & Experience:

GST domain depth: Strong, working command of GST returns and compliance — outward/inward supplies, ITC, reconciliation against the GST portal, and the filing logic of forms such as GSTR-1, 3B and 6. A Chartered Accountant or an indirect-tax specialist is the natural fit.

Functional documentation: Demonstrated ability to convert domain knowledge into a rigorous FSD — rules, conditions, edge cases and data flows written unambiguously.

Working with tech teams: Able to brief a BA and hold the line that build must not exceed documented scope. Comfortable at the business–technology interface without needing to code.

Test-data & compliance testing: Able to design compliance-focused test data and test plans that verify correct data-bucket mapping, not merely software function.

Excel & data handling: Fast and accurate with Excel and structured data — essential for building test sets and organising records.

Documentation discipline: Naturally organised: version control, clean storage, crisp written communication.

Attributes and Temperament:

Documentation-first by instinct — believes nothing is agreed until it is written.

Rigorous and precise, willing to go deep into a rule until it is fully resolved rather than left ambiguous.

Firm at the FSD boundary — able to hold the tech team to documented scope without conceding to informal changes.

Organised and crisp in communication, on email and in records.

Committed and accountable - takes full ownership of the project and team, and runs both with discipline. Reliability and follow-through matter as much as technical skill.

Complete FSD for each GST form, versioned (initial and build-ready).

FSD walkthrough to the tech BA, with a documented resolution of every gap raised.

Approved UI/UX for each module before development.

Compliance test-data sets and internal test plans per release.

A clean, organised, retrievable repository of all documents, data and approvals.