Senior Software Engineer - AI

DocuSign, Inc.; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

DocuSign, Inc. seeks a Senior Software Engineer to design, build, and scale intelligent, enterprise-grade software with a strong focus on agentic AI, integration, and secure distributed architectures.

You will collaborate with product management and architecture, own code quality, and drive from ideation to deployment, including NLP, RAG pipelines, and multi-agent frameworks in a hybrid in-office/remote setting.

Qualifications

• Experience developing GenAI-powered applications such as intelligent chatbots and autonomous agents.
• Experience with LLMs, transformer architectures, and their enterprise applications.
• Experience with RAG, embeddings, and fine-tuning of LLMs.
• Experience with NLP, prompt engineering, and context window optimization.
• Experience with LangChain, LlamaIndex, LangGraph, or similar frameworks.
• Experience with Python, Bash, React, and Streamlit; API integrations.

Responsibilities

• Design, build, and scale enterprise-grade software with agentic AI patterns.
• Develop NLP algorithms and information retrieval systems using SpaCy/NLTK/HuggingFace.
• Build RAG architectures connecting LLMs to enterprise databases.
• Create AI assistants and multi-agent frameworks with secure execution environments.
• Own CI/CD, versioning, and documentation for AI infrastructure.

Skills

GenAI-powered apps

NLP

LLMs

RAG

Prompt engineering

Distributed systems

APIs

Python

Docker

Kubernetes

AI-enabled architectures

Education

Bachelor's or Master's degree in Computer Science or related field

Tools

LangChain

LlamaIndex

LangGraph

CrewAl

React

Streamlit

Glean

Terraform

AWS

Git

Job description

Company Overview

Docusign brings agreements to life. Over 1.5 million customers and more than a billion people in over 180 countries use Docusign solutions to accelerate the process of doing business and simplify people’s lives. With intelligent agreement management, Docusign unleashes business-critical data that is trapped inside of documents. Until now, these were disconnected from business systems of record, costing businesses time, money, and opportunity. Using Docusign’s Intelligent Agreement Management platform, companies can create, commit, and manage agreements with solutions created by the #1 company in e-signature and contract lifecycle management (CLM).

What you'll do

Our Digital Technology Services team is in the business of trust and reliability. We create, maintain and operate scalable technology and data solutions that deliver an exceptional experience for our internal & external customers. We embrace Agile principles and values, favor DevOps practices, and view infrastructure as code, all while we create an SW infrastructure that scales and supports our growth and ambitious vision. This requires a smart, highly collaborative team who can identify, investigate, and implement new technologies to continue securely scaling our global business. We are seeking a Senior Software Engineer to design, build, and scale intelligent, enterprise-grade software solutions, with a strong focus on agentic Al systems and complex integrations across Application Engineering platforms. This role is a hands‑on engineering position requiring deep expertise in software design, distributed systems, APIs, and Al-enabled architectures, rather than functional system configuration. The Senior Software Engineer will develop and operate custom‑built applications, Al agents, middleware services, and integration frameworks that connect core technology platforms with enterprise and external systems. A key aspect of this role is the application of agentic Al patterns, including orchestration, tool‑using agents, Retrieval-Augmented Generation (RAG), and workflow automation, to improve system intelligence, resilience, and developer productivity. This role partners closely with Product Management, Enterprise Architecture, and technology stakeholders but remains fundamentally an engineering role, accountable for code quality, system reliability, scalability, and security.

This position is an individual contributor role reporting to the Director, Application Support and Operations.

Responsibility

• Conduct applied Al research to translate theoretical GenAl advancements into production-ready software features
• Lead Technical Feasibility Studies and rapid prototyping to provide the engineering foundation for "build vs. buy" architectural decisions
• Engineer Production-Grade NLP algorithms and information retrieval systems using SpaCy, NLTK, and Hugging Face to drive core product capabilities
• Design, build, and maintain scalable RAG architectures that connect foundational Large Language Models (LLMs) to proprietary enterprise databases
• Evaluate and apply appropriate embedding models, vector databases, and LLMs based on cost, latency, security, and performance requirements
• Build enterprise-grade conversational interfaces and analytical Al tools (QueryGPT) that interface directly with structured data systems via custom middleware
• Design and Build autonomous multi-agent frameworks (e.g., CrewAl, LangGraph) and scalable agentic platforms, focusing on distributed system architecture and secure execution environments
• Develop Custom Extensions and API-based integrations for LLM models, creating sophisticated Al assistants through backend systems programming
• Execute Model Engineering through supervised fine-tuning (SFT) and Reinforcement Learning from Human Feedback (RLHF) to optimize model weight distribution for scalability and reliability
• Develop algorithmic prompt-chaining logic and maintain a centralized, version-controlled prompt library integrated into the CI/CD pipeline
• Architect and Develop end-to-end evaluation pipelines for LLMs/SLMs, Engineering complex telemetry to capture performance, quantization efficiency, and fine-tuning convergence metrics
• Own the technical documentation, code maintainability, and reproducibility of the Al infrastructure, ensuring alignment with engineering excellence standards
• Bridge time zones effectively; ensure crisp handoffs and decision velocity with US counterparts

Job Designation

Hybrid: Employee divides their time between in-office and remote work. Access to an office location is required. (Frequency: Minimum 2 days per week; may vary by team but will be weekly in-office expectation)

Positions at Docusign are assigned a job designation of either In Office, Hybrid or Remote and are specific to the role/job. Preferred job designations are not guaranteed when changing positions within Docusign. Docusign reserves the right to change a position's job designation depending on business needs and as permitted by local law.

What you bring

Basic

• Bachelor's or Master's degree in Computer Science or a related field
• 6+ years of relevant experience with a Master's degree, or 8+ years with a Bachelor's degree
• Experience developing and deploying GenAl-powered applications such as intelligent chatbots, Al copilots, and autonomous agents
• Experience with Large Language Models (LLMs), transformer architectures (e.g., BERT, GPT, T5), and their applications in text generation, summarization, question answering, and code synthesis
• Experience with Retrieval-Augmented Generation (RAG), embedding techniques, knowledge graphs, and fine-tuning/training of large language models (LLMs)
• Experience in natural language processing (NLP), prompt engineering, instruction tuning, context window optimization, advanced tokenization strategies, and leveraging pre-trained LLMs (via APIs or open-source models)
• Experience with LLM orchestration frameworks such as LangChain, LlamaIndex, and agentic/multi-agent orchestration tools like LangGraph, CrewAl, or similar
• Experience developing and implementing an interactive search platform Glean
• Experience with programming languages such as Python and Bash, as well as frameworks/tools like React and Streamlit
• Experience with any copilot tools for coding such as Github copilot or Cursor
• Experience with vector databases such as FAISS, Pinecone, Weaviate, and Chroma for embedding storage and retrieval
• Experience with data preprocessing, augmentation, and visualization techniques
• Experience contributing to GenAl projects from ideation through deployment, iteration, and evaluation of LLM performance
• Experience working with containerization and orchestration technologies like Docker, Kubernetes, and AWS ECS
• Experience with key AWS services including VPC, IAM, MWAA (Managed Workflows for Apache Airflow), and ECS
• Experience with software development best practices including Git, testing, CI/CD pipelines, infrastructure as code (Terraform), automation, and MLOps for GenAl

Preferred

• Strong commitment to engineering excellence through automation,