Developed and optimized backend services for Sani Securities Company Limited, a NEPSE-licensed brokerage platform — enabling real-time trading, portfolio insights, and secure user transactions.
— A brokerage backend has one non-negotiable: the price on screen is the price at the exchange. Ticks are pushed the moment they land — a second of lag is a wrong number.
A brokerage is a different animal from a bank. A bank's balance can settle a second late and nobody notices; a trading screen a second late is actively misleading, because the price you're looking at is the price you think you're getting. Market data has to move as it happens.
Portfolio views are read-heavy and derived — holdings, valuations, and position changes computed against live market data rather than stored as facts. The work is in making those reads fast enough to feel instant while staying correct against a price that never stops moving.
Operating under a NEPSE licence means the platform's constraints are regulatory as well as technical. Secure user transactions aren't a feature you can defer to a later sprint — they're the condition of being allowed to run at all.
A WebSocket subscription to live NEPSE symbols. The server pushes every tick as it lands — the screen never waits on the next poll to learn the truth.
wscat — live market stream. Request: wscat -c wss://api.sani.internal/stream \ -x '{"subscribe": ["NIFRA", "NABIL"]}'. Response: < { "s": "NIFRA", "ltp": 312.50, "chg": "+1.8%" } < { "s": "NABIL", "ltp": 512.00, "chg": "-0.4%" } < { "s": "NIFRA", "ltp": 313.00, "chg": "+1.9%" } connected · ticks pushed as they happen, no polling
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