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Constructor

SaaS search and product discovery platform

Fullstack Engineer - Prospect Data Solutions

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeMunich, Germany$80k - $120k

About the Job

Requirements

  • A minimum of four years of professional experience or relevant academic experience.
  • English proficiency at C1 level of the CEFR or higher.
  • Ability to attend regular meetings with teammates between 1400 and 1800 UTC, with working hours ideally starting between 0900 and 1200 UTC.
  • A strong foundation and experience with server-side and client-side programming languages.
  • Experience building user interfaces using front-end frameworks such as React, Vue, or Angular.
  • A proven track record of building user interfaces with a strong focus on user experience.
  • Experience with automated testing tools such as Cypress, Jest, or React Testing Library.
  • Experience interacting with customers and solving new problems daily.
  • Ability to quickly learn new technologies and design patterns.

Responsibilities

  • Write JavaScript code to collect data for training proprietary AI models.
  • Use AI tools to accelerate software problem-solving and build solutions.
  • Collaborate with Data Analysts and Account Executives to help secure deals with prominent e-commerce brands.
  • Assist prospects with integrating their data and user interfaces with company services, focusing on ETL and front-end integrations.
  • Validate prospect-provided data and ensure the quality of results returned by company services.
  • Contribute to developing and scaling demo infrastructure for the Sales team.
  • Assist Account Executives by addressing prospects’ technical inquiries about company services.
  • Support teammates through code reviews and problem-solving sessions.
  • Develop dashboards and alerts using React, Redux, Node, ClickHouse, and OpenSearch.
  • Implement and test features for open-source JavaScript UI libraries and REST clients.
  • Coordinate cross-team efforts to prioritize prospect needs.
  • Help build team community by expanding Friday team-building games and promoting empathy, personal growth, and support for others.

Desired Qualifications

  • JavaScript experience is a strong asset; candidates with a proven software development background and willingness to learn JavaScript quickly will also be considered.
  • Experience with TypeScript, Next.js, Tailwind, Storybook, Python, and web scraping.

About the Company

Constructor

SaaS search and product discovery platform

Constructor.io provides a SaaS search and product discovery platform for ecommerce. It helps large ecommerce brands personalize online experiences and improve key metrics by using customer clickstream data and transformer-based machine learning models to understand and predict user behavior. The platform is API-first, headless, and composable, so it can plug into a company’s existing systems and workflows. It is designed to reduce manual merchandising tasks and empower ecommerce teams to act more strategically and quickly. Unlike many competitors, it emphasizes enterprise-grade integration, strong customer success through dedicated managers, training, performance reviews, and live support, and a subscription-based model that ensures ongoing support and updates. The goal is to help clients optimize digital merchandising, personalize customer experiences, and boost business KPIs such as conversion, revenue, and efficiency.

Company size
1,001-5,000
Company stage
Series B
Total funding
$86.1M
Headquarters
San Francisco, CA
Founded
2015

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