Applied AI Engineer
MossEstonia15 hours ago
Full-timeEngineering, Information Technology
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At Moss, we give finance professionals the power to automate their day-to-day and make forward-thinking decisions.
Our team and culture make us unique — we’re driven by impact and growth, where every one of us strives to learn and excel. Recognised by Sifted’s Rising 100 and LinkedIn's Top Startups, we’re here to help propel your career and together, make Moss a lasting success.
We are hiring an Applied AI Engineer to design, build, and scale customer-facing AI agents that transform how finance teams work. You’ll own projects from design to production and set the standard for applied AI at Moss.
Your Responsibilities
Note: Candidates should be proficient in a relevant subset of these technologies and familiar with most of them.
Core AI & ML
Moss is a SaaS scale-up founded in Berlin, with a team of 300+ people from 50+ nationalities in 5 offices across Europe.
Our ambition is bold: to power every SMB’s spend across Europe - fully digital, AI-driven, and seamlessly integrated for complete control. To date, over 5000 businesses in Germany, Netherlands and the UK use Moss’ leading spend management product, with modules such as corporate cards, accounts payables, employee cash reimbursements and procurement.
Moss has raised a total of €180 million in funding and is backed by the most renowned tech investors including Valar Ventures, Tiger Global, Global Founders Capital, Cherry Ventures and A-Star.
Be Part Of a Culture That Thrives On Impact And Speed, Where You Can Take Bold Moves, Learn Fast And Accomplish More. We’re a Place Where You Can Fast Track Your Career - Here's What Else To Expect
By applying for the above position, you will confirm that you have reviewed and agreed to our Data Privacy Policy.
Our team and culture make us unique — we’re driven by impact and growth, where every one of us strives to learn and excel. Recognised by Sifted’s Rising 100 and LinkedIn's Top Startups, we’re here to help propel your career and together, make Moss a lasting success.
We are hiring an Applied AI Engineer to design, build, and scale customer-facing AI agents that transform how finance teams work. You’ll own projects from design to production and set the standard for applied AI at Moss.
Your Responsibilities
- Build & Evaluate AI Agents: Design, implement, and rigorously test finance automation agents in production.
- Auditability & Control: Architect agents that provide a transparent audit trail of all reasoning steps and enable user intervention at any time.
- Data Context Injection: Seamlessly integrate customer data into agent workflows while maintaining trust, security, and adaptability.
- Technical Leadership: Shape Moss’s AI engineering practices, mentor peers, and influence product strategy.
- Collaboration: Work closely with product, design, and finance domain experts to deliver customer-ready AI products.
- Degree in Computer Science, Mathematics, or a related field from a top tier university.
- Minimum 8 years of professional engineering experience, with at least 2+ years in ML/NLP and proven hands-on experience in LLM-based systems. Proven track record in building and shipping customer-facing AI products or agents at scale.
- Programming Proficiency in Python (primary) and Java, with experience building scalable backend systems. Strong knowledge of LLMs, agent architectures, orchestration frameworks, and human-in-the-loop system design.
- Hands-on experience with Google Cloud (preferred), including Vertex AI, or comparable platforms.
- Experience building AI systems that are auditable, transparent, and reliable.
Note: Candidates should be proficient in a relevant subset of these technologies and familiar with most of them.
Core AI & ML
- Large Language Models (LLMs): OpenAI, Anthropic, Llama, Mistral, or similar
- Frameworks for LLM Applications & Agents: LangChain, LlamaIndex, Haystack, or comparable orchestration frameworks
- Evaluation & Monitoring: Weights & Biases, TruLens, Arize, or custom evaluation pipelines
- Prompt Engineering & Fine-tuning: prompt design, RAG, fine-tuning, or instruction tuning
- Programming: Python (primary) plus Java
- APIs & Microservices: REST/gRPC, FastAPI, Flask, Spring Boot, Node.js
- Databases: PostgreSQL, MySQL, BigQuery, Snowflake plus vector databases
- Data Pipelines: Kafka, Airflow, dbt, or equivalents
- Logging & Observability: Prometheus, Grafana, Datadog
- Audit Trail Design: event-sourcing, state tracking, reasoning-trace logging
- Human-in-the-Loop Systems: approval workflows, override mechanisms, explainability dashboards
- Cloud Platforms: GCP (preferred, incl. Vertex AI), AWS, or Azure
- Containerization & Orchestration: Docker, Kubernetes
- CI/CD & MLOps: GitHub Actions, GitLab CI, Jenkins; MLflow or similar
- Impact that matters: Your work will directly empower finance teams to focus on impact, not admin.
- Cutting-edge AI: Apply the latest AI breakthroughs to real customer challenges.
- Ownership: Play a central role in defining Moss’s AI roadmap and engineering culture.
- High-caliber team: Work alongside people who set the bar high and support each other to excel.
Moss is a SaaS scale-up founded in Berlin, with a team of 300+ people from 50+ nationalities in 5 offices across Europe.
Our ambition is bold: to power every SMB’s spend across Europe - fully digital, AI-driven, and seamlessly integrated for complete control. To date, over 5000 businesses in Germany, Netherlands and the UK use Moss’ leading spend management product, with modules such as corporate cards, accounts payables, employee cash reimbursements and procurement.
Moss has raised a total of €180 million in funding and is backed by the most renowned tech investors including Valar Ventures, Tiger Global, Global Founders Capital, Cherry Ventures and A-Star.
Be Part Of a Culture That Thrives On Impact And Speed, Where You Can Take Bold Moves, Learn Fast And Accomplish More. We’re a Place Where You Can Fast Track Your Career - Here's What Else To Expect
- Top-of-market compensation package, including equity.
- Our vibrant offices are at the heart of our culture, where in-person time fuels collaboration and connection over weekly breakfasts and Friday demos.
- Additional benefits include: 20 days “work from abroad”, 600EUR/GBP Learning & Development Budget, and other local benefits.
By applying for the above position, you will confirm that you have reviewed and agreed to our Data Privacy Policy.
Key Skills
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