Senior Software Engineer

Synthio Labs; California; Híbrido; USD 120.000 - 180.000; Jornada completa

Descripción de la vacante

Synthio Labs is seeking a hands-on Software Engineer to build end-to-end systems in a fast-moving team. You will work on AI-driven, voice-enabled applications and own services from design through production.

The role emphasizes reliability, performance, and pragmatic decision-making across the stack. The ideal candidate has 2–5 years of backend experience, strong Python skills, and hands-on work with LLM APIs and cloud infrastructure.

Formación

• 2–5 years of backend-focused software experience.
• Strong Python proficiency.
• Experience with API design and backend systems.
• Hands-on with LLM APIs (OpenAI, Anthropic, or similar).
• Cloud and DevOps basics (Docker, AWS).

Responsabilidades

• Build and maintain backend services powering AI- and LLM-driven products.
• Design APIs, data flows, and service integrations.
• Productionize LLM-based workflows (prompting, retrieval, orchestration).
• Deploy and operate services with low latency and high availability.
• Design and manage infrastructure (containers, cloud, CI/CD).
• Work on voice-enabled systems (STT/TTS, streaming APIs).
• Monitor, debug, and optimise performance, reliability, and cost.
• Collaborate with founders and product stakeholders to turn ambiguous requirements into scalable software.
• Own features and services end-to-end, from initial design to production support.

Conocimientos

Python

API design

LLM APIs

Cloud infrastructure

DevOps basics

System architecture

Independent thinking

Herramientas

Docker

AWS

CI/CD pipelines

Descripción del empleo

Synthio Labs is looking for a hands-on Software Engineer who enjoys building end-to-end systems and shipping production-grade products. This role sits at the intersection of backend engineering, AI systems, and infrastructure. You'll work on LLM-powered and voice-enabled applications, integrate external APIs, and own services from design through deployment and operation. You'll join a small, fast-moving team building real-world software for healthcare and pharma, where reliability, performance, and correctness are non-negotiable. We value engineers who take ownership, move quickly, and are comfortable operating across the stack.

Responsibilities

• Build and maintain backend services that power AI- and LLM-driven products.
• Design and implement APIs, data flows, and service integrations.
• Productionize LLM-based workflows (prompting, retrieval, orchestration, evaluations).
• Deploy and operate services with a focus on low latency, high availability, and robustness.
• Design and manage infrastructure (containerization, cloud services, CI/CD).
• Work on voice-enabled systems (STT/TTS, streaming APIs) as part of end-user experiences.
• Monitor, debug, and optimise systems for performance, reliability, and cost.
• Collaborate closely with founders and product stakeholders to turn ambiguous requirements into scalable software.
• Own features and services end-to-end, from initial design to production support.

Requirements

• 2-5 years of experience in software engineering or backend-focused roles.
• Strong proficiency in Python.
• Experience designing and building APIs and backend systems.
• Hands-on experience working with LLM APIs (OpenAI, Anthropic, or similar).
• Comfort with cloud infrastructure and DevOps fundamentals (Docker, AWS ECS/EKS/Lambda, observability, basic security).
• Interest in AI-powered systems, including voice and conversational interfaces.
• Solid systems and architecture thinking, with a pragmatic approach to tradeoffs.
• Ability to work with incomplete specs and make sound engineering decisions independently.