Senior Backend Engineer

What's Addressable?

Addressable is a fast-growing tech company building data products on top of large-scale on-chain and off-chain analytics - bridging the gap between blockchain activity and real-world entities. We're 50+ people across Tel Aviv, New York, and London.

So, what's the job?

We're looking for a Senior Backend Engineer to join our Engineering Team, working on products that turn billions of blockchain and social signals into actionable insights - across Web3 marketing and security. You'll design and build the services, APIs, and data flows behind the product end-to-end, from architecture to production, including the frontend touches a feature needs to actually ship.

Our stack is Python on AWS serverless-leaning, with Postgres, Redis, and a data lake at the core. AI is core to how we work, both as a daily development tool and as part of what we build into the product.

You're a product-oriented engineer who writes clean code, makes solid architectural decisions under uncertainty, and owns what you ship. You'll work alongside a small team of sharp engineers who do the same and move fast.

You Will

• Lead the end-to-end design of features, from architecture through development to production
• Build the services and APIs that power the product, partnering closely with adjacent teams on the contracts
• Own the logic behind core product capabilities — with reliability, performance, and clean interfaces as defaults
• Make architectural calls on data flow, storage, and integration patterns as the product surface and scale grow
• Use AI both ways — daily as a development tool, and as a building block for product features
  
  

• 5+ years building production server-side systems, with strong proficiency in Python
• A track record of designing and operating production services at meaningful scale
• Strong systems thinking - you reason about data flow, async behavior, and trade-offs across services
• Hands-on AWS experience and comfort working across cloud-native infrastructure
• AI-native development workflow - you use Cursor, Claude Code, or similar daily and have opinions on how to get the most out of them
• Experience shipping features end-to-end in a cross-functional product team — backend-first, but comfortable in the frontend when a feature calls for it
• A high bar for code quality and a default toward shipping things that are well-tested
  
  

• Production experience integrating LLMs or agent-based capabilities into real product features
• Experience with event-driven, streaming, or real-time data architectures
• Familiarity with on-chain data - wallet behavior, token transfers, multi-chain ingestion (EVM, Solana, Bitcoin, TRON, etc.)