* The position is open for Engineers based in the Czech Republic
ABOUT US
OAK’S LAB is a technology partner that helps startups, scaleups, and enterprises build software solutions by deploying empowered product teams. Our innovative solutions have created market leaders across multiple sectors.
Based in the Czech Republic
Founded in 2016
Built and launched 48 products
Combined valuation of our clients is $1.7B
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!
RESPONSIBILITIES
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 - oakslab.com/case-studies/vette
Karus - oakslab.com/case-studies/karus
Allspring - tryallspring.com
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
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)
Important Notice: OAK'S LAB communication, including interview requests and job offers, are only sent from an "@oakslab.com" or "@oaks-lab.com" email addresses (e.g., john@oakslab.com or john@oaks-lab.com). Any message from a different email domain is not associated with OAK'S LAB. We will never ask for payment information or banking details via email, phone, or any other communication channel during the interview process. If you receive messages using our name, domain, or brand assets in an attempt to impersonate us or act on our behalf, do not engage. Instead, report it to Econsumer.gov at https://econsumer.gov/ (if you are in the EU), Federal Trade Commission (FTC) at https://reportfraud.ftc.gov/, or the Securities and Exchange Commission (SEC) in case of investment fraud at https://www.sec.gov/tcr (if you are in the US).