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Regional hiringpublishedExternal employer
UAUseToday ApS
UseToday ApS•FinTech AI

Senior Fullstack Engineer

AI, Backend, Infrastructure

Location

Remote, Germany

Work type

Remote

Employment

Full Time

Experience

5-8 years

Compensation

Compensation not disclosed

Posted

16h ago

Summary and responsibilities

Role overview

Summary

This Senior Fullstack Engineer will architect, build, and own core product features across the entire stack, focusing on AI, backend, and infrastructure. The role involves developing production-grade AI products, integrating third-party APIs, and championing security and testing cultures within a fast-moving AI startup.

If terms such as Voice AI, workflow automation, real-time analysis, and assistance are what you're passionate about, we want to hear from you.


Tasks

  • Architect, build, and own core product features across our entire stack, from AI (Voice AI, STT, TTS, Microsoft Foundry, MCP, Deep Agents, LangChain, Langfuse) to Python (optionally Golang and/or TypeScript), Postgres, and Microsoft Azure infrastructure.

  • Design and implement scalable microservice architectures on a modern infrastructure stack.

  • Develop production-grade AI products, including features driven by LLMs, agents, and advanced audio ML.

  • Integrate a wide variety of third-party APIs, MCPs, and data stores to expand our platform's capabilities.

  • Get hands-on with Voice AI, building systems for audio analysis and processing, VAD, noise cancelation, turn management, and implementing robust evaluation frameworks for evals and agent orchestration.

  • Champion a security-first mindset, ensuring the highest standards for data, application, and infrastructure security.

  • Establish and drive a comprehensive testing culture, from unit testing to contract and penetration testing.


Requirements

  • You have a proven track record of building and shipping production-grade AI products, especially in a startup environment.

  • You possess rock-solid, hands-on experience in Python (and/or Golang), Postgres (or MySQL), microservices, and modern infrastructure. ReactJS, TypeScript, or Electron is also a big plus.

  • You have experience with API/MCP integrations and can quickly get up to speed on new services.

  • You have deep, practical experience with building AI Agents, integrating and evaluating LLMs, prompt engineering, and evals.

  • You have built scalable, responsive infrastructure under high-traffic and big-data regulatory requirements.

  • Experience building prod-grade agents for the memory, context, and tooling challenges.

  • You are exceptionally driven with a strong entrepreneurial mindset and are excited by the prospect of joining the team at an early stage.

  • You are a pragmatic problem-solver who can translate complex requirements into robust, scalable, and secure technical solutions.

  • Previous experience in FinTech, InsurTech, or other regulated industries is a plus.


Benefits

Join our mission to deliver peace of mind at scale. Work with and learn from our Founder team that created over €1.5B in Fintech enterprise value and is driven to aim higher this time. Join an extremely fast-moving AI startup that’s transforming how thousands of customers experience financial advice.

In addition to a competitive salary, we offer significant equity.

Updated 16h ago

Candidate fit

Skills and qualifications

Additional skills

AI • 1+ yrs
Python • 1+ yrs
Postgres • 1+ yrs
Microsoft Azure • 1+ yrs
Microservices • 1+ yrs
LLMs • 1+ yrs
Prompt Engineering • 1+ yrs
Security • 1+ yrs

Experience

5-8 years

How this role is positioned

Role classification

Job domains

Engineering

Industries

Finance & Banking

Employment

Full Time

Contract duration

Permanent

Hiring type

Direct

Global hiring

Location specific

Offer details

Compensation and benefits

Compensation

Compensation not disclosed

VisibilityShared on listing
CurrencyUSD
PeriodYearly

Location, schedule, and role shape

Work setup

Work conditions

Primary locationRemote, Germany
Work typeRemote
Global hiringNo

Bandwidth profile

peopleMedium • 6/10
physicalLow • 1/10
cognitiveHigh • 9/10
executionHigh • 9/10
creativityHigh • 9/10
uncertaintyHigh • 9/10
communicationHigh • 8/10

Context on the employer

Company snapshot

Company

UseToday ApS

Team size

Growing team

Location

Remote, Germany

TODAY revolutionizes Financial Advice by making advisors AI-native. Its AI sales operating system supports financial and insurance advisors before, during, and after client meetings, so they save time and give their clients better advice.

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Senior Fullstack Engineer

Remote, Germany • Full Time