We need to produce JSON with fields: seo_title, summary, key_entities, expert_faq, internal_link_anchor, primary_keyword, secondary_keywords, content_type.

We must write a 180-250 word summary, split into 3-4 paragraphs, each 45-65 words. Must bold a few key details using double asterisks. Must not violate banned words.

We need to base on source: "Citadel Securities LLC, the market-making firm founded by billionaire Ken Griffin, is hiring more engineers and traders in India, as it seeks to expand in one of the world’s fastest-growing financial markets."

We can elaborate: talk about India's growing market, Citadel's global presence, hiring engineers/traders, no specifics on numbers. We can add context: India's financial market growth, increasing foreign participation, etc. Must not invent facts not implied. We can infer that India is one of the world's fastest-growing financial markets (stated). We can say that Citadel aims to tap into rising trading volumes, etc. That's implied.

We must not invent specific numbers like dollar amounts unless in source. No numbers given, so avoid.

We need to bold key details: maybe Citadel Securities, Ken Griffin, India. That's three.

We must ensure no banned words: list includes "additionally", "align with", "crucial", "delve", "emphasizing", "enduring", "enhance", "fostering", "garner", "highlight", "interplay", "intricate", "intricacies", "key", "landscape", "pivotal", "showcase", "tapestry", "testament", "underscore", "valuable", "vibrant", "nestled", "groundbreaking", "renowned", "breathtaking", "must-visit", "stunning", "profound", "game-changer", "robust", "paradigm". Also banned filler phrases. Must avoid those.

We also must avoid banned closers like "future looks bright", etc.

We need to end with concrete statement, not forward-looking platitude.

We need to produce JSON with proper escaping of newlines inside summary string.

We must count words 180-250. Let's aim ~210 words.

We need 3-4 paragraphs e