BJAK Logo

BJAK

Full Stack Engineer, AI systems

Reposted 24 Days Ago
Be an Early Applicant
Remote
Hiring Remotely in Germany
Mid level
Remote
Hiring Remotely in Germany
Mid level
Build end-to-end AI-native product features across frontend, backend, and AI integrations. Design and deploy reliable agent workflows, integrate LLMs/memory/tools, optimize streaming low-latency interactions, improve observability, fallback and recovery mechanisms, and iterate on production failures to increase reliability of multi-step workflows.
The summary above was generated by AI
About ActAI

There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting.

Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. We believe products will greatly reduce hallucinations.

Our objective is to organise anyone's life, allowing us all to spend time on valuable and meaningful things.

 
Role

We are looking for a Full Stack Engineer - AI Systems to build the product layer that turns these capabilities into usable, production-grade workflows. This includes designing how agents operate, fail, recover, and deliver consistent value to users.

 
Focus
  • Build end-to-end product features across frontend, backend, and AI integrations

  • Design agent workflows that handle planning, tool use, failure, and recovery across multiple steps.

  • Integrate LLMs, memory, and external tools into systems that behave reliably under real-world conditions

  • Design real-time AI interactions with streaming, partial results, and tight latency constraints

  • Improve system reliability, observability, and fallback mechanisms

  • Collaborate closely with ML, backend, and product teams to ship features end-to-end

  • Continuously iterate based on real usage and failure modes

 
Ideal Experiences
  • Strong experience in full stack engineering (frontend + backend)

  • Solid understanding of system design and API architecture

  • Experience working with LLMs, RAG systems, or AI-powered applications

  • Ability to handle ambiguity and make pragmatic engineering decisions

  • Strong ownership - able to take features from idea to production

  • Comfort working in fast-moving environments with evolving requirements

 
Outcomes
  • Own and ship AI-native product features that move beyond chat into persistent, goal-driven workflows

  • Design and deploy agent workflows that reliably complete multi-step tasks across tools and sessions

  • Reduce latency and improve responsiveness of AI interactions while maintaining output quality

  • Build robust fallback and recovery mechanisms for LLM and tool failures in production environments

  • Improve the success rate and reliability of AI-driven workflows through iteration, evaluation, and monitoring

  • Establish patterns and abstractions for integrating LLMs, memory, and external tools into scalable product systems

  • Contribute to a product experience where AI feels proactive, consistent, and dependable over time

 
Tech Stack
  • Next.js

  • Python

  • NodeJs

  • Pytorch

  • OpenAI / Anthropic / open-source LLMs

  • SQl & noSQL

  • Kubernetes

  • Docker

 
How We Work

The best products today in the world were built by small, world class teams. We are a high talent density and hands-on team. We make decisions collectively, move at rapid speed, striking a balance between shipping high quality work and learning. Joining our team requires the ability to bring structure, exercise judgment, and execute independently. Our goal is to put in hands of our users a truly magical product

 
Interview process

If there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews.

Applications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite.

We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.

Similar Jobs

3 Days Ago
Remote or Hybrid
Mid level
Mid level
HR Tech • Information Technology • Professional Services • Sales • Software
Leads and develops a high-performing outbound BDR team generating pipeline across the DACH region. Responsibilities include hiring, coaching, live call support, outbound strategy, cadence and workflow optimization, performance accountability, forecasting, metric reporting, and collaboration with Marketing, Sales, RevOps, and Enablement. The role also drives adoption of sales tools and fosters an inclusive, high-energy team culture.
Top Skills: ApolloCognismExcelLinkedin Sales NavigatorOrumOutreachSalesforceSalesloftTableauZoominfo
3 Days Ago
In-Office or Remote
Expert/Leader
Expert/Leader
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Leads global R&D environmental, health, and safety programs with primary authority in industrial hygiene. Oversees exposure assessments, hazard controls, laboratory safety, containment verification, risk registers, investigations, metrics, governance, and enterprise partnerships. Leads a global EH&S community of practice, influences senior stakeholders across sites, supports vendor programs and M&A due diligence, and develops organizational capability. The role requires up to 30% domestic and international travel and includes periodic laboratory and manufacturing-site access.
Top Skills: CorityEnablonIntelex
3 Days Ago
Remote or Hybrid
Entry level
Entry level
Artificial Intelligence • Big Data • Cloud • Information Technology • Machine Learning • Software
Drive pre-sales activities in the DACH region by connecting Nexthink’s technical capabilities to business outcomes. Qualify leads, deliver demonstrations, manage Proofs of Value, facilitate value-based workshops, support enterprise transactions, train partners, and engage executive stakeholders. The role collaborates with Sales, Professional Services, and Partners, contributes to marketing events, and develops thought leadership around digital employee experience. German and English fluency are required, with travel of up to 50%.
Top Skills: CloudDigital Experience ManagementItilNexthinkOffice 365VirtualizationWindows 10

What you need to know about the Belfast Tech Scene

If asked to name the birthplace of the RMS Titanic, you might not say Belfast. Similarly, if asked to name Europe's leading destination for foreign direct investment in new software development, Belfast might not come to mind. Yet, both are true. The city has emerged as a tech powerhouse, recently ranked among the best in the U.K. for tech careers — especially for software developers. It also leads the U.K. with the highest percentage of software development jobs advertised.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account