Senior Software Engineer (Node&React)

Reposted 2 Days Ago
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28 Locations
In-Office or Remote
Senior level
Artificial Intelligence • Mobile • Software • App development
Top agency for custom software development & AI
The Role
The Senior Software Engineer will design and develop high-quality web and mobile applications, ensuring code quality while collaborating with product teams and mentoring junior engineers.
Summary Generated by Built In

**This is a remote position open to candidates in Europe. For those based in the Czech Republic, a hybrid work model is also available.

ABOUT US

We are a leading product development partner specializing in custom web and mobile application development. With Silicon Valley founders and top-tier European tech talent, we operate from Prague and have successfully delivered over 65 software products for early-stage startups, scaleups, and global enterprises.

  • Founded in 2016

  • Headquartered in Prague

  • Built and launched 65+ products

  • 90+ team members

  • Driving product innovation for leading US companies

At OAK’S LAB, we take an AI-first approach, utilizing AI on almost every project. From streamlining design and testing workflows to enhancing developer productivity, our teams leverage tools such as Figma MCP Server, Playwright MCP Server, and Cursor, and we’re actively experimenting with remote AI agents to push the boundaries of what’s possible in product development.

OUR PROJECTS

Here are a few from our portfolio:

  • Nasdaq Private Market (Series C, Finance)- nasdaqprivatemarket.com

  • Blackpoint Cyber (Series B, Cybersecurity) - blackpointcyber.com

  • OpenLoop (Series A, Healthcare) - openloophealth.com

THE ROLE

Our product development team is looking for a Senior Fullstack Engineer who combines creative thinking, exceptional problem-solving skills, and technical expertise to build outstanding web and mobile applications for our clients.

You’ll play a key part in building and scaling impactful digital products from the ground up. You’ll work as part of a dedicated product team alongside a Tech Lead, Product Manager, Designer, and a talented group of engineers, driving the success of innovative companies. Your role will involve everything from participating in high-level technical discussions to engineering and deploying complex features, giving you full ownership across the entire product development lifecycle.

For ambitious engineers, we’ll provide the time, mentorship, and opportunities to step into a leadership role, where you can guide and mentor your own team over the longer term. You’ll also have the opportunity to join our internal AI Guild, a community where engineers share insights, experiment with cutting-edge AI tools, and learn from one another.


RESPONSIBILITIES
  • Design, develop, and version high-quality web and mobile applications

  • Collaborate with product teams to understand feature requirements and translate them into technical solutions

  • Be accountable for an area of the application, its delivery, production-level quality, and its effective presentation to stakeholders

  • Understand the product and user needs to prioritize business value and functionality

  • Ensure the application meets all requirements of security and scalability

  • Write clean and scalable code

  • Engage in code reviews, provide constructive feedback, mentoring less senior engineers

SKILLS & REQUIREMENTS
  • 5+ years of experience in building web solutions using Node and React

  • Experienced with Javascript/Typescript

  • Focus on code quality

  • Desire to learn new technologies and apply AI in your workflow

  • Strong analytical and problem-solving skills

  • Proactiveness and the capability to make a difference

  • Driven, hard work ethic, showing commitment

  • Ability to work effectively in a team environment, following Agile methodologies

  • Proficient in English

  • Experience with Python is beneficial but not essential

OUR TECH STACK
  • Typescript

  • Node.js

  • React + Next.js

  • React Native

  • GraphQL, tRPC

  • Material UI

  • Playwright

  • PostgreSQL

  • Google Cloud Platform

  • Python

  • HuggingFace API, LLM APIs (eg OpenAI API), Langchain, Vector Databases for RAG

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., [email protected] or [email protected]). 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 Government Shutdown Notice / Aviso de cierre del gobierno (if you are in the EU), Federal Trade Commission (FTC) at Government Shutdown Notice / Aviso de cierre del gobierno , or the Securities and Exchange Commission (SEC) in case of investment fraud at SEC.gov | Report Suspected Securities Fraud or Wrongdoing (if you are in the US).

Skills Required

  • 5+ years of experience in building web solutions using Node and React
  • Experienced with Javascript/Typescript
  • Proficient in English
  • Ability to work effectively in a team environment, following Agile methodologies
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The Company
59 Employees
Year Founded: 2016

What We Do

OAK’S LAB is a leading product development partner specializing in custom web and mobile application development that drives tangible business results. With Silicon Valley founders and top-tier European tech talent, we operate from Prague and have successfully delivered over 65 software products for early-stage startups, scaleups, and global enterprises. Notable Clients: • AAA - 61M members • Blackpoint Cyber - $201M in funding • Blue Owl Capital - $251B AUM • Capital Markets Gateway - $69M in funding • Nasdaq Private Market - $62M in funding • PlexTrac - $81M in funding • Productboard - $261M in funding • Volkswagen - $5B market cap Our Services: 1. Product Discovery Before writing a single line of code, we help you identify the right product to build. Through market research, user validation, and rapid prototyping, we reduce risk and ensure your product meets real user needs and is commercially viable. 2. Custom Web & Mobile Development We build scalable, high-performance applications using React.js and Node.js, tailored to your business goals. Our focus on clean architecture and modern frameworks ensures your product is fast, secure, and ready to scale. 3. AI & Agentic Systems We design and build AI-powered systems that automate workflows, streamline operations, and connect siloed data. Leveraging LLMs, RAG, and AI orchestration, we create intelligent solutions that deliver efficiency gains.

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