Vedic Astrology Calculation Engine Development

Developer Needed for Vedic Astrology (Jyotish) Calculation Engine

Description:
I’m looking for a developer to build a basic Vedic astrology (Jyotish) calculation engine for integration into a mobile app.
The module must compute:

Nakshatra

Pada

Lunar Rashi (Moon sign)

Lagna / Ascendant

Tithi

Yoga

Karana

Technical requirements:

Sidereal zodiac

Lahiri Ayanamsha

Accurate astronomical calculations (Swiss Ephemeris or similar)

Proper time conversion (local → UTC → Julian Day)

Correct handling of time zones and daylight saving

Architecture:
The code must be clean, modular, and extendable, because I will later add custom data tables and mappings on top of the calculation results.
(These will not be hard-coded by the developer.)

What is NOT needed:

No interpretation

No UI/UX

No horoscope text

Only the calculation engine

Deliverables:

Fully working calculation module

Well-documented source code

A simple function, such as:
calculateJyotishData(date, time, location)

Example output

Full ownership of the source code transferred to me

Preferred experience:

Astronomy/ephemeris libraries (Swiss Ephemeris or similar)

Astrology app development (Vedic or Western)

Strong mathematical/astronomical skills

Clean coding practices

Example output:
"nakshatra": "Chitra",
"pada": 3,
"lunar_rashi": "Tula",
"lagna": "Kanya",
"tithi": "Dwitiya",
"yoga": "Vishkumbha",
"karana": "Bava"
If you are interested, please share your experience, preferred programming language, timeline, and relevant past work.