ML Engineer (Applied AI)

2 months, 3 weeks ago
Full-time
Mid Level
Software Development
NineTwoThree

NineTwoThree

NineTwoThree is a leading software development firm based in Boston with over 10 years of experience in mobile apps, web apps, and AI. They specialize in custom web and mobile app development, incubating digital venture ideas, and partnering with compa...

Internet Software & Services
51-250
Founded 2012

Description

  • Design and implement classical machine learning and generative AI solutions for client projects.
  • Build robust LLM applications, agentic workflows, and retrieval pipelines from prototype to production.
  • Evaluate AI systems for quality, reliability, safety, and business impact before and after deployment.
  • Integrate AI capabilities into web and mobile applications alongside full-stack developers and DevOps.
  • Optimize prompts, system instructions, and chunking strategies for accuracy, latency, cost, and privacy.
  • Clean, process, and analyze client data to train or fine-tune models for forecasting, classification, and anomaly detection.
  • Participate in client discovery sessions and translate business needs into technical scopes.
  • Demo prototypes to stakeholder teams and communicate technical concepts clearly.
  • Review code, validate AI outputs, and contribute documentation and runbooks to the internal knowledge base.

Requirements

  • 3+ years of software engineering experience with a strong focus on machine learning and natural language processing.
  • Deep understanding of modern LLM architectures, context windows, semantic search, and generative AI limitations.
  • Experience building and operating production AI systems, including monitoring, evaluation, debugging, and iterative improvement.
  • Experience with LLM evaluation methods such as retrieval quality, hallucination detection, and task-specific performance measurement.
  • Exceptional Python skills and the ability to query, clean, and structure data with SQL.
  • Hands-on experience deploying ML or API services in cloud environments, preferably AWS.
  • Comfort taking ownership of ambiguous problems from discovery through deployment and ongoing support.
  • Ability to quickly ramp up in a new industry and deliver a working proof of concept within a few weeks.
  • Fluent written and spoken English and comfort communicating with client stakeholders.
  • Bachelor’s or Master’s degree in Computer Science, Engineering, Data Science, or a related field, or equivalent practical experience.

Benefits

  • 20 days of paid vacation per year during the first 3 years, increasing to 25 days later.
  • Paid sick leave, 10 national holidays, and 2 company days off.
  • Well-being budget.
  • Maternity/paternity leave.
  • Professional development course and certification reimbursement up to 100% with manager agreement.
  • Hardware provided based on business needs.
  • Fast hiring process with a short HR interview, technical interviews, a live-coding interview, and an offer stage.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Manager, AI/ML Engineering

Lyra Health 1K-5K Health Care Providers & Services

Lyra Health is seeking an engineering leader to execute its machine learning roadmap by scaling and mentoring an AI/ML engineering team that delivers reliable, production-grade systems for mental health care.

AWS HIPAA Java Kotlin Kubernetes Machine Learning Microservices MLOps Neural Networks Prototyping Transformers
12 hours, 37 minutes ago

Senior/Staff Machine Learning Engineer (Model Dev)

Artera 51-250 Construction & Engineering

Artera is seeking an experienced machine learning engineer to lead end-to-end AI biomarker development for cancer care, from clinical problem definition and model validation through regulatory submission and production deployment.

AWS Deep Learning Kubernetes Machine Learning PyTorch TensorFlow
12 hours, 52 minutes ago

[Job-31696] Tech Lead – AI Orchestrator | Android, Brazil

CI&T 5K-10K Internet Software & Services

A CI&T busca uma pessoa Tech Lead – AI Orchestrator | Android para liderar a construção e modernização de jornadas de pagamentos em um SuperApp, integrando fluxos via BFF e orquestrando agentes de IA ao longo do SDLC.

Android Espresso Generative AI Jetpack Compose JUnit Kotlin REST API XML
1 day, 12 hours ago

Software Engineer III, Service AI Transformation

Natera 1K-5K Pharmaceuticals

Natera is hiring a Software Engineer III for its Service AI Transformation Team to build reliable, scalable AI-powered services and integrations that streamline clinical, commercial, and operational workflows.

AWS AWS CDK CI/CD Datadog GraphQL HIPAA JavaScript Kafka Microservices Next.js React Serverless Terraform TypeScript
2 days, 12 hours ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers