---
title: 'Senior Full Stack Developer (Backend Oriented) at Similarweb'
canonical: 'https://feeny.ai/job/senior-full-stack-developer-backend-oriented-similarweb-tel-aviv-w25qpb9257tq'
type: 'job'
last_seen: '2026-09-09'
---

# Senior Full Stack Developer (Backend Oriented) at Similarweb

- **Company:** Similarweb
- **Location:** Tel Aviv, Israel
- **Posted:** 2026-09-09
- **Last confirmed live:** 2026-09-09
- **Apply:** https://job-boards.greenhouse.io/similarweb/jobs/8187911

## Job description

At Similarweb, we are revolutionizing the way businesses interact with the digital world by revealing to them everything that happens online.

Our unique data and solutions empower over 4,300 customers globally, including industry giants like Google, eBay, and Adidas, to make game-changing decisions that drive their digital strategies.

In 2021, we went public on the New York Stock Exchange, and we continue to reach new heights! Come work alongside Similarwebbers across the globe who are bright, curious, practical and good people.

We are looking for a Senior Fullstack Engineer with a strong backend orientation (80%) to join the development of our scalable, AI-powered product systems.

What You'll Do:

Join a role that combines deep backend expertise with solid frontend fluency and product thinking, along with the ability to leverage AI tools effectively across the development lifecycle. You will work closely with product, design, frontend, and data/AI teams to build reliable, performant systems and intuitive user experiences, while driving engineering excellence and modern development practices. Your contributions will shape the technical foundation of an AI-first product and directly influence the experience of end users.

What does the day to day of a Senior Fullstack Engineer at Similarweb look like:

Your daily work will span backend architecture, frontend collaboration, and AI-augmented development, engaging directly with the systems that power our product.

Your role will include:

- Design and build scalable, maintainable backend services using NestJS (Node.js/TypeScript) and/or Python
- Own API design, contracts, and versioning across services
- Design and optimize data models, database schemas, and query performance
- Implement authentication, authorization, and secure API integration patterns
- Build reliable data-fetching layers, caching strategies, and async processing (queues, jobs, events)
- Lead backend technical decisions, code quality standards, and system architecture
- Ensure system scalability, fault tolerance, and observability (logging, monitoring, alerting)
- Contribute to CI/CD pipelines and deployment practices for backend services
- Collaborate on frontend applications built with React, TypeScript, and Vite, and contribute to API contracts from the consumer's perspective
- Partner with frontend engineers to align on data shapes, performance, and UX constraints
- Translate product requirements into robust, scalable technical solutions, working closely with product and design
- Conduct high-quality code reviews and drive architectural discussions and best practices
- Improve testing, observability, CI/CD, and system reliability across the team
- Use AI coding tools effectively in daily development work (Cursor, Copilot, Claude, ChatGPT, etc.), critically evaluating and refining AI-generated code, especially for backend logic and data integrity
- Design efficient personal/team workflows for AI-assisted development and contribute to engineering productivity through AI tooling and automation

What does the ideal candidate look like:

- 5+ years of Full stack or Backend engineering experience, with a strong backend focus(80%)- Must
- Strong proficiency in Node.js, TypeScript, and NestJS; Python proficiency also welcome (or equivalent backend framework)- Must
- Solid working proficiency in React and modern frontend fundamentals (HTML, CSS)
- Experience designing scalable backend architectures and data models
- Deep understanding of API design, authentication flows, and distributed system tradeoffs
- Experience with relational and/or NoSQL databases, including query optimization
- Strong understanding of system performance, reliability, and security best practices
- Experience with testing methodologies (unit, integration, E2E) and observability tooling
- Hands-on experience using AI development tools in daily workflows, with the ability to validate, debug, and improve AI-generated code
- Understanding of prompt engineering for engineering workflows and the ability to work effectively in fast iteration environments
- Strong product and technical intuition, with excellent communication and collaboration skills
- Nice to have: experience with data platforms, analytics products, or BI tools; large-scale data processing or query optimization; streaming/real-time data patterns; or integrating with LLM APIs

Why you'll love being a Similarwebber:

You'll actually love the product you work with: Our customers aren't our only raving fans. When we asked our employees why they chose to come work at Similarweb, 99% of them said "the product." Imagine how exciting your job is when you get to work with the most powerful digital intelligence platform in the world.

You'll find a home for your big ideas: We encourage an open dialogue and empower employees to bring their ideas to the table. You'll find the resources you need to take initiative and create meaningful change within the organization.

We offer competitive perks & benefits: We take your well-being seriously, and offer competitive compensation packages to all employees. We also put a strong emphasis on community, with regular team outings and happy hours.

You can grow your career in any direction you choose: Interested in becoming a VP or want to transition into a different department? Whether it's Career Week, personalized coaching, or our ongoing learning solutions, you'll find all the tools and opportunities you need to develop your career right here.

Diversity isn't just a buzzword: People want to work in a place where they can be themselves. We strive to create a workplace that is reflective of the communities we serve, where everyone is empowered to bring their full, authentic selves to work. We are committed to inclusivity across race, gender, ethnicity, culture, sexual orientation, age, religion, spirituality, identity and experience. We will handle your application and information related to your application in accordance with the Applicant Privacy Policy available [here](https://www.similarweb.com/corp/legal/applicant-privacy-policies/).

## About Similarweb

## Company Overview
- **One-liner**: Similarweb provides a leading digital intelligence platform that analyzes web traffic, app performance, and consumer behavior to help businesses win their market.
- **Entity Type**: Public (NYSE: SMWB)
- **Headquarters**: London, United Kingdom (with major offices in Tel Aviv, Israel; New York, NY; and Burlington, MA)
- **Founded**: 2007 (as SimilarGroup)
- **Founders**: Or Offer

## Core Business
- **Primary industry/industries**: Digital Intelligence, Web Analytics, Market Research, Competitive Intelligence, AI-Powered Data
- **Target customers**: B2B, serving Enterprise, Mid-Market, and SMB customers across Marketing, Sales, GTM, Product, and Strategy teams
- **Mission or purpose statement**: "To create the most accurate, comprehensive, and actionable Digital Data, so every business can win their market." [similarweb.com](https://www.similarweb.com/corp/about/)

## Products & Services
- **Web Intelligence**: Analyze website traffic, audience behavior, and competitive landscape for any website. Includes SEO tools, content analytics, and market research.
- **App Intelligence**: Track and benchmark app performance, downloads, usage, and stickiness across app stores.
- **Sales Intelligence**: Prospect, qualify, and engage with ideal customers using digital signals and intent data.
- **AI Search Intelligence**: Track and grow brand visibility across AI search engines and chatbots (e.g., ChatGPT, Perplexity).
- **Retail Intelligence**: Full-funnel Amazon insights for tracking, targeting, and converting shoppers.
- **Data-as-a-Service (API)**: Deliver digital insights at scale via API and automated reporting for integration into other platforms.
- **Data Partnerships (OEM)**: Enrich third-party products with Similarweb's digital data to drive new revenue streams.
- **Advisory Services**: Gain deeper market and consumer insights through expert consulting.

## Market Standing
- **Valuation/Market Cap**: As of July 2026, market cap is approximately $1.5B (publicly traded, subject to market fluctuations).
- **Key Metric**: Annual Revenue: Over $200M (latest fiscal year); Trusted by over 3,500+ global customers.
- **Notable Investors/Partners**: Publicly traded on NYSE; major institutional investors include ION Asset Management, The Baupost Group, and others (check latest 13-F filings). Partners include major agencies and technology platforms.
- **Growth Signals**: Over 1,000 employees globally; publicly traded since 2021; named a G2 Leader in multiple categories (Enterprise SEO, Content Analytics, Market Intelligence, Digital Advertising Intelligence, Paid Search Intelligence, Best Answer Engine Optimization Tools); expanding AI-powered product lines.

## Competitive Advantages
- **Massive Data Scale**: Analyzes 20M+ companies, 100M+ apps, 250M+ content pages, 5B+ search terms, and 10B+ display ads daily, with 10 years of historical data. [similarweb.com](https://www.similarweb.com/)
- **First-Mover in AI Search Intelligence**: One of the first to offer dedicated tools for monitoring brand presence in AI chatbots and answer engines.
- **Comprehensive Platform**: Covers web, app, retail, sales, and AI search in a single integrated platform, providing a holistic view of digital performance.
- **G2 Leader Status**: Recognized as market leader across multiple software categories, validating product quality and market adoption.

## Strategic Focus
- **AI-First Product Development**: Deep investment in AI-powered insights, including AI Search Intelligence and automated data analysis.
- **Expansion into Financial Services & LLM Vertical**: Hiring dedicated sales managers for Financial Services and AI/LLM sectors, indicating strategic vertical market penetration.
- **Global Growth**: Maintaining offices across six continents; expanding presence in APAC (Singapore, Tokyo, Shanghai) and EMEA (London, Prague).
- **Data Partnerships & OEM**: Growing revenue streams by embedding data into other platforms and powering third-party products.

## Why Work Here
- **Culture & Values**: Emphasizes authenticity, diversity, and inclusion ("you can be your full authentic self"). [similarweb.com](https://www.similarweb.com/corp/careers/)
- **Hybrid Work Model**: Joint days for in-office collaboration, in-office team activities, and fully stocked kitchens.
- **Professional Development**: Access to thousands of e-courses, professional coaching, 1:1 mentoring programs, and award-winning employee development programs.
- **Competitive Benefits**: Health care packages, food stipend, on-premise exercise classes, personal trainer assessments, gym membership reimbursement.
- **Global Presence**: Offices in London, Tel Aviv, New York, Boston, Prague, Singapore, Tokyo, and Shanghai.
- **Engineering & Data Culture**: Teams work with massive data sets (2TB processed daily), cutting-edge AI, and a product that employees rank as the #1 reason they join. [similarweb.com](https://www.similarweb.com/corp/careers/)
- **Growth Opportunities**: Over 1,000 employees and growing; multiple career tracks in GTM, Marketing, HR, Operations, and Engineering.

## Sources
1. [similarweb.com - About Us](https://www.similarweb.com/corp/about/)
2. [similarweb.com - Careers](https://www.similarweb.com/corp/careers/)
3. [similarweb.com - Products](https://www.similarweb.com/)
4. [Greenhouse - Similarweb Jobs](https://job-boards.greenhouse.io/similarweb)
5. [Indeed - Similarweb Company Profile](https://www.indeed.com/cmp/Similarweb)

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