Backend Engineer – Extensions

Fundamental

Backend Engineer developing data science capabilities that enhance product performance for an AI enterprise. Collaboration with Data Scientists and R&D to solve complex problems in production environments.

Posted 6/22/2026full-timeRemote • 🇮🇱 IsraelMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsPython

About the role

Key responsibilities & impact

Own the reliability, performance, and scalability of Extensions capabilities end to end
Design and build distributed workflows that are efficient, reproducible, and observable in production
Collaborate closely with Data Scientists on the team to deeply understand requirements and translate them into engineering decisions
Identify and resolve performance bottlenecks, ensuring Extensions capabilities meet the latency and throughput demands of enterprise deployments
Contribute to architectural decisions around how Extensions integrates with the broader NEXUS backend
Write clean, well-tested Python code and hold a high bar for code quality across the team
Contribute to internal engineering documentation and help establish best practices for backend development within the team

Requirements

What you’ll need

5+ years of backend engineering experience, with a strong focus on Python
Excellent Python skills - you write clean, idiomatic, well-tested code and know the language deeply
Solid experience designing and operating distributed systems at production scale
Strong understanding of concurrency, task execution, and workflow orchestration patterns
Experience building systems that are reproducible, observable, and easy to debug in production
Ability to work closely with non-engineering counterparts and translate complex requirements into reliable implementations
Strong ownership mindset - you drive work end to end and care about outcomes, not just output

Benefits

Comp & perks

Competitive compensation with salary and equity
Comprehensive health coverage for you and your dependents
Paid parental leave for all new parents, inclusive of adoptive and surrogate journeys
Relocation support for employees moving to join the team in one of our office locations
A mission-driven, low-ego culture that values diversity of thought, ownership, and bias toward action

ATS Keywords

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Hard Skills & Tools

Pythondistributed systemsconcurrencytask executionworkflow orchestrationbackend developmentcode qualityperformance optimizationscalabilityobservability

Soft Skills

collaborationcommunicationownership mindsetproblem-solvingattention to detail