Custom Fintech & BFSI Software Development
Stacklyn builds custom fintech and BFSI software for lenders, NBFCs, payment businesses, wealth platforms, and financial services startups. We deliver loan origination and management systems, payment and settlement infrastructure, digital KYC and onboarding journeys, investment and wealth dashboards, collections platforms, and regulatory reporting tooling built for reconciliation-grade accuracy.
Software Challenges in the Fintech & BFSI Sector
Financial software is unforgiving in a specific way: everything must reconcile. A retail product can tolerate an eventually-consistent counter; a lending or payments platform cannot tolerate a ledger that disagrees with the bank statement. The engineering that matters is therefore unglamorous — idempotent transaction handling, immutable ledgers, deterministic interest and fee computation, replayable webhooks, and audit trails that survive a regulatory inspection years later. Most fintech incidents trace back to one of those fundamentals being treated as an afterthought during a rush to launch.
Our Fintech & BFSI Clients
- NBFCs and digital lending companies
- Banks and cooperative financial institutions
- Payment and settlement businesses
- Wealth management and investment platforms
- Insurance distribution and broking firms
- Embedded finance and BNPL products
- Fintech startups building regulated products
Problems We Solve for Fintech & BFSI Companies
Reconciliation Breaks at Scale
Payment gateway settlements, internal ledgers, and bank statements diverging daily, consuming finance team hours and hiding real losses.
Manual, Drop-Off Heavy Onboarding
KYC journeys with document upload friction and manual verification queues, where most applicants abandon before completion.
Rigid Off-the-Shelf LOS/LMS
Loan platforms that cannot express your actual credit policy, forcing workarounds in spreadsheets outside the system of record.
Interest & Fee Computation Disputes
Interest, penal charges, and foreclosure calculations implemented inconsistently across systems, producing customer disputes and audit findings.
Collections Run on Spreadsheets
Delinquency buckets, allocation to agents, and promise-to-pay tracking managed outside the core system with no field visibility.
Painful Regulatory Reporting
Periodic regulatory and bureau submissions assembled manually each cycle, with format errors discovered only after rejection.
Software Solutions for Fintech & BFSI Companies
Loan Origination System (LOS)
Configurable application journeys, document collection, bureau pulls, rule-driven credit policy and scorecards, deviation and approval hierarchies, sanction letters, and disbursement workflows.
Loan Management System (LMS)
Immutable ledger, amortisation and repayment schedules, deterministic interest, penal charge and foreclosure computation, restructuring, NPA classification, and statement generation.
Digital KYC & Onboarding Journeys
Document capture with OCR extraction, liveness and face match, verification API orchestration, risk-based flows, re-KYC scheduling, and drop-off analytics on every journey step.
Payments & Settlement Infrastructure
Gateway and bank integrations, idempotent transaction handling, replayable webhooks, payout and refund flows, automated settlement reconciliation, and exception queues for finance teams.
Collections & Recovery Platform
Delinquency bucketing, agent allocation strategies, field collection mobile app with geo-tagged visits, promise-to-pay tracking, receipting, and recovery performance dashboards.
Wealth, Investment & Portfolio Dashboards
Portfolio aggregation, holdings and transaction views, XIRR and returns computation, goal tracking, model portfolios, and advisor-facing tools with client reporting packs.
Risk, Limits & Fraud Controls
Rule engines for exposure limits, velocity checks, device and behaviour signals, anomaly flags, case management for review queues, and configurable escalation workflows.
Regulatory & MIS Reporting
Automated generation of periodic regulatory submissions, bureau reporting files, portfolio MIS, ageing and provisioning reports, with format validation before submission.
Tech Stack We Use
Why Fintech & BFSI Companies Choose Stacklyn
Ledger-First Architecture
We design the ledger before the screens. Immutable, double-entry records with idempotent posting are what keep a platform reconcilable at ten thousand transactions a day and at ten million.
Money Movement Done Carefully
Retries, duplicate webhooks, partial failures, and timeouts are designed for explicitly, so a network blip never becomes a double disbursement or a lost repayment.
Credit Policy as Configuration
Rules, scorecards, deviation matrices, and approval hierarchies are configurable by your credit team, so policy changes do not queue behind an engineering release.
Reconciliation Is a Feature
Automated settlement matching with exception queues is built in from day one, because a finance team spending its month-end in spreadsheets is a product defect.
Audit-Ready Records
Immutable event history, user attribution, and reproducible computation mean an inspection or dispute is answered from the system rather than reconstructed from memory.
Clear on the Compliance Line
We build the technical controls, documentation, and evidence your compliance and audit functions need. Licensing, regulatory approval, and legal attestation remain yours, and we support that process rather than making claims on your behalf.
See How Stacklyn Builds for Fintech & BFSI
Real products built and shipped by Stacklyn for industrial clients.
Fintech & BFSI Software — Frequently Asked Questions
Other Industries We Serve
Our Core Services
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