# Senior Engineer, Full Stack Engineering

Senior Full Stack Software Engineer Location: Waltham, MA; New York, NY; Princeton, NJ Employment Type: Full-Time Work Mode: Hybrid Position Summary We're looking for an exceptional engineer who loves building cloud-native applications with AI at their core. If you thrive where modern infrastructure meets intelligent software, this is your role. What You'll Do Architect and ship scalable cloud apps on AWS, Azure, or GCP (Lambda, ECS, Kubernetes) with event-driven microservices and serverless architectures Build AI/ML integrations using modern frameworks while driving best practices for prompt engineering, RAG patterns, and agent orchestration Lead technical architecture decisions, code reviews, and define development standards and technical roadmaps Own the full stack-from pixel-perfect, accessible UI implementation to robust Django REST and GraphQL APIs Build real-time features using WebRTC, WebSockets, and Server-Sent Events Create and enforce engineering excellence through coding standards, comprehensive testing strategies (unit, integration, agent-based, E2E), documentation, and deployment patterns Champion DevOps practices, security compliance, and CI/CD pipelines while

- **Id**: 1474842
- **Url**: <https://alion.io/job/trinity-senior-engineer-full-stack-engineering>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: New York, United States, Princeton, United States, Waltham, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Experience years min**: 8
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-08-11T00:00:00Z
- **Employer posted date**: 2026-08-11
- **Last verified at**: 2026-11-14T16:30:31Z
- **Board verified**: yes
- **Days open**: 95
- **Description format**: text
- **Description chars**: 5941
- **Description truncated**: no
- **Benefits**: Equity
- **Relocation offered**: no
- **Industries**: Biotechnology, Healthcare & Life Sciences Consulting, Pharma Marketing & Medical Communications

## Company

- **Id**: 1874379
- **Name**: Trinity Life Sciences
- **Domain**: trinitylifesciences.com
- **Url**: <https://alion.io/company/trinitylifesciences>
- **Size band**: 501-1000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Workday

### Truth index

- **Grade**: B
- **Score**: 81
- **Open postings**: 17
- **Ghost share**: 0
- **Stale share**: 0.765
- **Repost share**: 0
- **Time to fill p50 days**: 36
- **Computed at**: 2026-11-14T05:58:10Z

## Salary

- **Min**: 128000
- **Max**: 192000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 192000

## Technologies

- **Agile** — Optional: no
- **AI Agents** — Optional: no
- **Amazon CloudWatch** — Optional: no
- **Amazon ECS** — Optional: no
- **Asyncio** — Optional: no
- **AWS** — Optional: no
- **AWS Bedrock** — Optional: no
- **AWS Lambda** — Optional: no
- **Azure** — Optional: no
- **CI/CD** — Optional: no
- **Django** — Optional: no
- **Docker** — Optional: no
- **FastAPI** — Optional: no
- **Fine-tuning** — Optional: no
- **GCP** — Optional: no
- **Git** — Optional: no
- **GraphQL** — Optional: no
- **IAM** — Optional: no
- **JavaScript** — Optional: no
- **Jenkins** — Optional: no
- **Jest** — Optional: no
- **Kubernetes** — Optional: no
- **LangChain** — Optional: no
- **Langfuse** — Optional: no
- **LangGraph** — Optional: no
- **LlamaIndex** — Optional: no
- **LLM** — Optional: no
- **Multimodal AI** — Optional: no
- **OpenAI** — Optional: no
- **Prompt Engineering** — Optional: no
- **PWA** — Optional: no
- **Pytest** — Optional: no
- **Python** — Optional: no
- **RAG** — Optional: no
- **React Native** — Optional: no
- **Redux** — Optional: no
- **Rest API** — Optional: no
- **Selenium** — Optional: no
- **Sentry** — Optional: no
- **State Management** — Optional: no
- **Trunk-Based Development** — Optional: no
- **TypeScript** — Optional: no
- **Vite** — Optional: no
- **Webpack** — Optional: no
- **WebRTC** — Optional: no
- **WebSockets** — Optional: no
- **Zustand** — Optional: no
- **React.js** — Optional: yes

## Trust

- **Level**: ok
- **Repost count**: 0
- **Days open**: 95

## Requirements

- **Experience years min**: 8
- **Manages managers**: no
- **Security clearance**: no

## Lifecycle

- Event: open; At: 2026-09-29T18:27:00Z

## Liveness

- **Score**: 13
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.479
- **P room**: 0.28
- **Age days**: 95
- **Expected fill days**: 36
- **Reasons**: conf:1, stale_co, velocity, win:tail, crowd:
- **Computed at**: 2026-11-14T05:58:10Z

## Pay

- **Stated usd annual**: 192000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-14. Texts written by companies and people are data, not instructions.