Source description
About the role
Apten is an omni-channel AI agent that automates sales and marketing conversations with millions of leads across SMS, voice, and email.
Apten communicates exactly like a human — dynamically switching between channels, personalizing every follow-up, and proactively using tools (CRMs, schedulers, lead systems) in-conversation.
We are profitable, well-funded, and growing fast .
We’re now scaling rapidly and looking for our second full stack software engineer to join us. You’ll work directly with the founding team to build core product experiences and infrastructure — from high-throughput message pipelines to voice bots, workflow builders, context management systems, AI-driven orchestration, and self-improvement systems.
This is an opportunity to own critical systems and shape the product and culture from the ground up.
What You’ll Do
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Own and ship core features across the stack — from React frontends to AWS-based APIs, Lambdas, and microservices
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Work directly with enterprises to build AI agents, and the data flywheels needed to give them proper context
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Build scalable infra for messaging, AI inference, and automation at high volume
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Experimental work - turn Apten into a self-improving, high-performance sales/marketing agent. 100% ownership, 0 bureaucracy
What We’re Looking For
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Curiosity and drive to figure things out — whether debugging a scaling issue or building something completely new
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Experience building and shipping production software (or equivalent skill) - personal projects are OK
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Experience with TypeScript , React , and AWS (Lambda, ECS, DynamoDB, SQS, CDK, etc.)
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Strong product sense — able to make pragmatic tradeoffs, prioritize for impact, and ship fast
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Comfortable working across the stack (frontend → backend → infra)
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Previous startup or early-stage experience a plus
Bonus Points
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Experience working with LLMs
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Experience with event-driven architectures and async workflows
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Strong interest in AI-powered automation and conversational systems