Senior Full Stack Software Engineer

Boston, Massachusetts

Apolis
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Job Title: Senior Full Stack Software Engineer - AI & Prototyping

Location: Onshore (USA) Hybrid Model (Boston MA)
Type: Long Term(Contract to Hire/Full Time Position)
Start Date: ASAP
Interview process:there will be an internal screening with coding and client interview. Please share strong resources for both.

About the Role:

We are seeking a highly skilled and adaptable Senior Software Engineer with over 10 years of hands-on experience to support our AI Lead in the development and execution of innovative Proof of Concept (PoC) and pilot projects. This role is ideal for someone who thrives in a fast-paced, experimental environment and enjoys working across the stack-from building lightweight web applications to exploring integrations with LLM-based APIs and agentic platforms such as Relevance AI or Microsoft Copilot.

Key Responsibilities:
  • Collaborate with the AI Lead to design and implement lightweight web apps, tools, and interfaces
  • Develop front-end and back-end components to support AI-driven workflows
  • Build and integrate APIs, including those for LLMs and third-party agentic systems
Explore and prototype with emerging platforms (e.g., Relevance AI, MS Copilot)
  • Assist in the automation and validation of natural language interactions-helping to test and evaluate the output of non-deterministic systems
  • Contribute to experiments with prompt design and response optimization
Required Skills & Experience:
  • Solid full stack engineering experience with modern web frameworks (e.g., React, Node.js, Python, or similar)
  • Demonstrated ability to deliver rapid prototypes and MVPs
  • Comfort working with APIs , JSON-based services, and asynchronous data flows
  • Experience or interest in QA/test automation strategies, especially in less deterministic systems
  • Fast learner with the ability to quickly adapt to new technologies or project needs
  • Design, develop, and test software solutions under the guidance of the AI Lead.
Nice to Have:
  • Exposure to LLMs and prompt engineering concepts
  • Hands-on experience with agentic systems (e.g., Relevance AI, LangChain, MS Copilot)
  • Interest in automating validation of natural language interactions
  • Familiarity with experimentation frameworks or feedback loops for ML/AI systems
Contract Details:
  • Duration: Longterm
  • Location: Onshore (USA), Hybrid Model
  • Reporting to: AI Lead
Date Posted: 17 May 2025
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