Senior Fullstack Engineer (AI Focused)

The Role

Our product development team is seeking a Senior Fullstack Engineer who brings creative thinking, problem-solving abilities, and proactive technical expertise to build outstanding web and mobile applications for our startup clients. You’ll be working on cutting-edge projects, solving challenges that were previously unsolvable without the use of AI

In this role, you will work within a dedicated product team consisting of the Tech Lead for the specific product, Product Manager, Designer and a skilled team of engineers to drive the startup's success. From engaging in technical discussions to engineering complex features, your involvement spans the entire product development lifecycle.

Our current startup projects are focused around the areas of LLM prompting, transformers, embeddings, and vector databases. If you already have experience working on AI-related initiatives or would like to gain commercial experience with AI focused products, this could be the role for you!

Responsibilites

• Design scalable, modular, and maintainable architectures for AI-powered applications
• Collaborate with product teams to understand feature requirements and translate them into technical solutions leveraging AI models
• Integrate APIs (e.g., LLM APIs (e.g. OpenAI), Hugging Face API) into applications for tasks such as NLP and image recognition
• Implement prompt engineering, embeddings, and other techniques to customize model outputs without building models from scratch
• Implement vector databases in Postgres for RAG
• Use tools like Hugging Face’s Transformers to further customize pre-trained models to suit specific project requirements
• Optimize server-side logic to ensure efficient querying and integration with AI tools
• Work with unstructured data (text, images, etc.) and convert it into model-ready formats
• Validate the output quality from AI models to ensure it aligns with business needs and provides value to end-users

Skills & Requirements

• 3+ years of experience in building web solutions using (a) Node.js or (b) React with another programming language (Java, Python, .NET etc)
• Experienced with Javascript/Typescript
• 5+ years in engineering
• Focus on code quality
• Desire to learn new technologies
• Strong analytical and problem-solving skills
• Proactiveness and capability to make a difference
• Driven, hard work ethic showing commitment
• Ability to work effectively in a team environment, following Agile methodologies
• Comfortable communicating in English (intermediate level sufficient). OAK’S LAB has often been the first English-speaking position for many of our team, so we offer free English lessons to continue to support your growth

Tech Stack

• TypeScript
• Node.js
• React + Next.js
• React Native
• GraphQL, tRPC
• Google Cloud Platform
• HuggingFace API, LLM APIs (eg OpenAI API)
• Postgres/Vector Databases for RAG

Note: You don’t need experience with all the above technologies as we are happy to upskill in certain areas. For a detailed overview of the technologies we use, please visit the LINK.

Our Projects

We’ve built over 40 successful products. Here are a few from our portfolio:

• ‍Vette‍
• Karus ‍
• Allspring

Benefits

• Flexible working hours
• Hybrid working environment
• 25 vacation days + 1 birthday day off + 1 additional day for every year working with OAK’S LAB (capped at 30 days)
• Top-of-the-line MacBook and hardware budget
• Budget to spend on your growth (books, courses, conferences)
• Free English lessons
• Opportunity for a bonus gained from investments in our startup partners
• Team bonding, happy hours, online games, annual offsite trips
• Outside of work activity clubs (yoga, traveling, football, tennis, etc.)
• Snacks and drinks in the office, weekly pizza, monthly breakfast
• Landmark office right on Old Town Square (dog-friendly)