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Founded in 1986, SS&C is headquartered in Windsor, Connecticut, and has offices worldwide. More than 23,000 financial services and healthcare organizations, from the world's largest companies to small and mid-market firms, rely on SS&C for expertise, scale, and technology.\nJob Description\n 5 - 9 years of experience in software engineering, computational linguistics, or technical prompt development.\nDeep knowledge of foundation model behaviors (GPT-4, Llama, Claude, Mistral), context window dynamics, and tokenization mechanics.\nStrong Python coding skills to programmatically generate, test, and evaluate prompt performance at scale.\nHands-on experience with output validation libraries (Pydantic, Instructor) and guardrail systems.\nStrong technical discipline around edge-case mapping, deterministic output formatting, and cost optimization.\nHands-on experience with foundation models such as GPT-4, Claude, Llama, including model behavior, context window dynamics, tokenization, and prompt optimization. \n Strong expertise in advanced prompting techniques such as Few-Shot Prompting, Chain-of-Thought (CoT), ReAct, and Context Engineering for solving business use cases. \nExperience with structured outputs and guardrails, including JSON/XML/Pydantic outputs, output validation, hallucination reduction, and safety frameworks such as NeMo Guardrails. \n Prompt evaluation and optimization using Python, including automated prompt testing, DSPy-based tuning, evaluation frameworks, and cost optimization of LLM applications. \nUnless explicitly requested or approached by SS&C Technologies, Inc. or any of its affiliated companies, the company will not accept unsolicited resumes from headhunters, recruitment agencies, or fee-based recruitment services.\nApplications will be accepted on an ongoing basis until the position is filled.\nSS&C Technologies is an Equal Employment Opportunity employer and does not discriminate against any applicant for employment or employee on the basis of race, color, religious creed, gender, age, marital status, sexual orientation, 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