Senior Fullstack Engineer (Python, React.js) - AI Startup | Stealth mode [23k - 28k PLN B2B]

Who are we?

Hi! We're Bee Talents, an IT recruitment agency that has been helping clients from all around the world in building their technical teams since 2015. Today, we would like to invite you to participate in the recruitment process for one of our clients (currently on Stealth Mode).

Our client is a fast-growing AI-driven PropTech startup transforming the way homes are managed. Backed by a £2.7M pre-seed round and led by a highly experienced founding team from the UK and Poland, the company is building an AI-powered home management co-pilot that simplifies property ownership. With a launch planned for later this year, the company is expanding its engineering team to support rapid growth. This is a unique opportunity to join an ambitious team and play a key role in shaping both the technology and product.

Product: the company's mission is to revolutionise the way homes are managed by building an AI-powered property management co-pilot. This AI agent will help clients with all things property-related - from finding an electrician or plumber to comparing home insurance quotes. Their platform will also digitise all information about a property to proactively manage maintenance and admin. The goal is to alleviate typical frustrations associated with property maintenance and repairs, thus improving marketplace efficiency and saving time and money.

Culture and the team: Team values bold thinking, end-to-end ownership, and transparent collaboration, where everyone is empowered to make an impact. The team is currently 9 people strong, including the CEO, CTO, CFO, UK Commercial Director, Head of Product, along with 3 founding engineers and a designer. With rapid growth ahead, they are actively expanding their team and looking for an engineering leader who will thrive in a startup environment.

What our client can offer you:

💰Salary and type of contract: 33-38k PLN on B2B (and 0.3%+ ownership in the company, subject to a 4-year vesting schedule with a 1-year cliff, along with planned equity option grants in the future)

🚀Fast progression pathway and compensation review as the company grows

🌴Holiday: 26 paid working days off + sickleave

🖥️Equipment: MacBook⏱ Working hours: flexible (but there are dailies, plannings and retros they want you to part in)

🏢 Working mode: 100% remotely (with quarterly  offsites  in London’s HQ and occasional meetups in Poland 

🇬🇧 Speaking language: English, as a part of the team is based in the UK

• Own and drive the development of end-to-end features across React.js (web) and Python (FastAPI).
• Ship high-quality, scalable, and performant solutions, ensuring seamless frontend-backend integration.
• Work closely with Product and Design to turn ideas into polished, user-centric features.
• Take full ownership of major features, driving them from ideation to launch, balancing speed and scalability.
• Maintain high code quality through reviews, testing (unit, feature, and e2e), and CI/CD pipelines.
• Work together with the current Backend Engineer to develop and maintain cloud infrastructure (AWS, Docker is a plus).
• Collaborate with fellow engineers (Frontend, Backend, and AI) to solve technical challenges and scale the platform.
• Identify and remove bottlenecks in the development process to improve velocity.

• 5+ years of experience in software engineering, including at least 1 year in a senior role, with expert-level proficiency in React.js and Python (FastAPI or similar framework).
• Deep understanding of frontend performance optimization, API design, and scalable backend architectures.
• Experience in fast-paced environments or startups, where rapid iteration and delivery are key.
• Strong sense of ownership and a delivery-focused mindset—comfortable driving projects independently from start to finish.
• Familiarity with best practices in testing, CI/CD, and cloud infrastructure.
• Excellent problem-solving and communication skills, with a collaborative approach to working with Product, Design, and Engineering teams.
• Fluent in English (B2+ minimum) for effective communication.
• Bonus: Experience with React Native, as we plan to build a mobile app in the future.

• Nice to haves: familiarity with Gen AI technologies, RAG & ReAct Models, LangChain, LLMs

Sounds interesting? Let’s talk! :)

PS Process stages:

1) 30-min screening with Nina from Bee Talents

2) Coding Interview with a team member - 45 minutes

3) Onsite (an all-day online interview), consisting of:

- 2nd Coding interview - 45 minutes

- System Design - 60 minutes

- Product Interview - 45 minutes

- HM interview with the CTO  - 60 minutes

4) Final interview with the CEO - 30 minutes

BEE TALENTS INFORMATION CLAUSE ⬇️The Administrator of your personal data is Bee Talents PSA, Garbary 35 Street 12, 61-868 Poznań, NIP: 7792463296. The purposes of processing your personal data are: conducting the initial stage of recruitment, based on your consents, participation in future recruitment processes conducted for our clients, based on the consent, defense against potential claims of our Clients for whom we conduct recruitment, in particular regarding the non-compliance of the Candidate’s profile with the requirements specified by the Client – which is a legitimate interest of the Data Administrator pursuant to art. 6 section 1 pt. f) GDPR. Due to data processing you have the right to access your personal data, request a copy of it, rectificate it, delete or limit it and withdraw of consents at any time, make an objection to the processing of personal data and lodge a complaint to the President of the Personal Data Protection Office if it  violate the GDPR rights. You can read the full content of the information clause here: https://beetalents.com/eng-gdpr.