Staff Software Engineer

Merck Group$110K — $165K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science, Engineering, Data Science, or a related field.
  • Minimum 3 years of hands-on experience in machine learning or data science.
  • 10+ years of software engineering experience, especially in production AI/LLM systems preferred.
  • Expertise in Python and ML frameworks like TensorFlow and PyTorch.
  • Strong SQL skills and experience with relational databases; NoSQL experience a plus.

Responsibilities

  • Lead AI/LLM systems strategy across multiple products.
  • Architect reliable retrieval and evaluation systems for production.
  • Set standards for AI safety and observability in regulated environments.
  • Mentor junior engineers to enhance AI engineering skills.
  • Evaluate and integrate new AI models and tools into the team.
  • Design and develop scalable Python applications and backend services.
  • Manage data ingestion, validation, and transformation in production.

Benefits

  • Health insurance
  • Paid time off (PTO)
  • Retirement contributions
  • Performance-based bonuses
  • Opportunities for professional growth and advancement.
Full Job Description
Your Role: We are looking for a Staff Applied AI Engineer to build scalable, production-grade backend applications that leverage large and complex datasets. This role is software engineering first, with a strong emphasis on designing reliable systems that ingest, process, and serve data to power modern applications and AI-driven solutions. You will work closely with product managers, software engineers, data scientists, and ML engineers to build robust backend services, data-intensive applications, and production AI systems. Success in this role requires strong software engineering fundamentals, practical experience working with data throughout its lifecycle, and the ability to design systems that are scalable, maintainable, and reliable in production. Essential Job Functions: • Lead technical strategy for AI/LLM systems across multiple products • Architect retrieval, orchestration, agentic, and evaluation systems that run reliably in production • Set the standards for AI safety, evaluation, observability, and responsible rollout in a regulated context • Mentor Junior-level engineers into strong AI engineers; Employ AI Native development skills to multiply the productivity (Claude, etc.) • Lead the frontier: evaluate new models, techniques, and tools, and bring the right ones into the team • Design, develop, and maintain scalable Python applications and backend services. • Build systems that ingest, validate, transform, and manage structured and unstructured data in production environments. • Design data models and storage solutions that support scalable, high-performance applications. • Develop reusable components for data processing, validation, enrichment, and feature generation. Who You Are Minimum Qualifications: • Bachelor's degree in Computer Science, Engineering, Data Science, or a related quantitative field. • At least 3 years of hands-on experience in machine learning, data science, search relevance, or ranking systems. Preferred Qualifications: • 10+ years of software engineering experience, with deep recent time leading production AI/LLM systems • Proven expertise in Python and ML frameworks (MLFlow, TensorFlow, PyTorch, Scikit- learn, or equivalent). • Strong background in statistical analysis, data exploration, and working with large-scale datasets. • Experience with feature engineering, data preprocessing, and data • Seasoned hands-on coder; still writes production Python regularly • Seasoned system designer for AI systems at scale - retrieval, agents, evaluation, latency, and cost, vector databases/pipelines • Strong experience building and maintaining production-grade backend applications. • Experience designing and developing RESTful APIs and distributed systems. • Strong SQL skills and experience working with relational databases; familiarity with NoSQL databases or modern data storage technologies is a plus. • Solid understanding of data engineering fundamentals, including data quality, validation, transformation, modeling, and efficient storage. • Experience designing systems that process large datasets reliably and efficiently. • Experience with cloud platforms such as Google Cloud Platform (GCP) or AWS. • Experience using Docker, Git, CI/CD pipelines, automated testing frameworks, and modern software engineering best practices. • Core engineering stack • Languages: Python, REST API, Pandas, NumPy • Cloud and infrastructure: AWS Services and/or GCP, Kubernetes, Bedrock • Distributed systems: event-driven architectures, including Kafka • Orchestration Frameworks: LangGraph, LangChain, AirFlow, etc. • Vector Databases like Qdrant Nice to have Skills: • Experience with Kubernetes and container orchestration. • Familiarity with event-driven architectures and messaging platforms such as Kafka. • Familiarity with ML model deployment and inference pipelines Location This role can be based in either our St. Louis, MO or Burlington, MA office and requires a weekly onsite presence Pay Range for this position: $110,500 - $165,900. The offer range represents the anticipated low and high end of the base pay compensation for this position. The actual compensation offered will be determined by factors such as location, level of experience, education, skills, and other job-related factors. Position may be eligible for sales or performance-based bonuses. Benefits offered by the Company include health insurance, paid time off (PTO), retirement contributions, and other perquisites. For more information click here: https://careers.emdgroup.com/us/en/benefits

About Merck Group

Merck Group Careers

There has never been a more opportune time to join Merck Group, a leading science and technology company in healthcare, life science, and performance materials. Merck Group offers a plethora of job opportunities that cater to a variety of skills and professional aspirations, making it an ideal environment for both seasoned experts and those at the start of their career journey.

Work You’ll Do

At Merck Group, every team member contributes to breakthrough innovations in healthcare, life sciences, and electronics. The company's commitment to diversity and innovation fuels its leadership in various sectors, driving growth and transformation globally. Merck Group’s career paths are diverse, offering positions that challenge individuals to use their skills in new ways every day, supported by robust training programs and development opportunities.

Explore Job Opportunities and Growth

Merck Group is not just about jobs; it's about building a career. With a vast array of positions, from research and development to marketing and sales, the company is keen on hiring and nurturing talent to lead industry transformation. Merck Group’s dedication to professional growth is evident in its comprehensive benefits package and performance management processes that aim to maximize individual potential.

Internship Programs

Starting with an internship at Merck Group can be a pivotal step in securing a prosperous career. Interns gain invaluable industry experience, working alongside seasoned professionals and engaging in projects that offer real-world applications of their studies. Internships often lead to full-time employment opportunities, providing a seamless transition from education to professional employment.

Inclusive Culture and Leadership

Merck Group is proud of its inclusive culture that embraces diversity and fosters an environment where all employees can thrive. The company’s leadership is committed to creating a workplace where diverse ideas lead to innovative outcomes. Merck Group also offers diversity training to ensure all team members are equipped to contribute to the company’s inclusive goals.

Networking and Professional Development

Employees at Merck Group are encouraged to engage in networking and professional development activities that enhance their career trajectories. The company hosts various networking events, workshops, and seminars that are designed to hone skills and foster connections within the industry. Leadership development programs are also a cornerstone, preparing employees for future roles of increased responsibility.

Stay Connected with Merck Group Careers

Interested candidates can explore open positions that match their skills and interests through the Merck Group careers page. The company values curious, creative, and solution-driven team players who are eager to make an impact.

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Merck Group is continuously looking for individuals who are ready to drive innovation and lead in the global marketplace. Whether through full-time positions, internships, or leadership roles, Merck Group offers a career path filled with opportunities for growth, learning, and leadership.
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