דרושים » תוכנה » Senior Software Engineer, Routing

As a Senior software engineer, you will take part in building scalable, high-performance systems that power some of the largest digital marketing platforms in the world.
Design and implement end-to-end features and products, spanning from backend (including databases) to client-facing components.
Tackle complex and large-scale technical challenges in cutting-edge, high-performance systems.
Collaborate closely with Product Managers and fellow Engineers to deliver high-quality, impactful solutions.
Provide technical mentorship and support to team members, fostering a culture of learning and growth.
Analyze and optimize the performance, scalability, and reliability of Skais products, infrastructure, and internal tools.
Stay up-to-date with emerging technologies and propose innovative ideas to continuously enhance our product offerings.

AI is fundamentally changing how software is built, opening new ways to design, implement, and evolve systems, and were looking for AI-native backend engineers who want to work at the forefront of how modern R&D operates. As a backend Engineer on our team, youll be responsible for building scalable backend services and architecture while deeply integrating AI development tools (such as Cursor, Claude Code) into how you design, implement, and iterate on systems. You will be part of a team that cares deeply about performance, reliability, and shipping high-impact engineering work.
What am I going to do?:

* Build and own high traffic backend services, APIs, and core systems used in production.
* Use AI development tools as a default part of daily development, not an add-on.
* Apply AI to problem framing, system design, debugging, refactoring, and decision making, not just code generation.
* Design backend solutions with a strong focus on scalability, reliability, observability, and maintainability.
* Collaborate closely with other engineers to deliver features and influence how AI is used across day-to-day R&D work.
* Participate in architectural discussions and help raise the overall backend and AI maturity of the organization.
Equal opportunities:
At Fiverr, we prioritize diversity. We celebrate difference and embed it into every aspect of our workplace and product, as well as our community. Fiverr is proud and committed to providing equal opportunity employment to all individuals regardless of race, color, religion, sex, sexual orientation, citizenship, national origin, disability, Veteran status, or any other characteristic protected by law. In addition, Fiverr will provide accommodation to individuals with disabilities or a special need.

We're building Cyber Threat Intelligence platform - an AI-first product that harvests, contextualizes, and serves threat intelligence at scale. We're looking for a Python-native backend engineer to own the infrastructure that makes this possible.
You'll design and build the systems that power both agentic AI workloads and large-scale data orchestration - exposing CTI insights as a service to UI components, APIs, and autonomous agents across the ecosystem. This is a greenfield opportunity where you'll shape foundational architecture decisions on a new product with a small, high-impact team.
:Responsibilities
Shape and build our data lake architecture, orchestration layer, and data access patterns.
Build the tooling and infrastructure that enables AI agents to consume and reason over threat data.
Develop systems that harvest data from open and dark web sources, cross-reference signals, and contextualize raw intelligence into actionable insights.
Serve curated CTI data to various consumers - dashboards, internal services, and other agents in the platform.
Instrument complex workflows with tracing and metrics - when things break in production, we need visibility to understand why.
Create developer tooling and experiences that make the platform usable for other engineers building on top of it.

We are looking for a Senior Data Platform Engineer to design, build, and scale next-generation data platform, the backbone powering our AI-driven insights.
This role sits at the intersection of data engineering, infrastructure, and MLOps, owning the architecture and reliability of our data ecosystem end-to-end.
Youll work closely with data scientists,r&d teams, analysts to create a robust platform that supports varying use cases, complex ingestion, and AI-powered analytics.
Responsibilities:
Architect and evolve a scalable, cloud-native data platform that supports batch, streaming, analytics, and AI/LLM workloads across R&D.
Help define and implement standards for how data is modeled, stored, governed, and accessed
Design and build data lakes and data warehouses
Develop and maintain complex, reliable, and observable data pipelines
Implement data quality, validation, and monitoring frameworks
Collaborate with ML and data science teams to connect AI/LLM workloads to production data pipelines, enabling RAG, embeddings, and feature engineering flows.
Manage and optimize relational and non-relational datastores (Postgres, Elasticsearch, vector DBs, graph DBs).
Build internal tools and self-service capabilities that enable teams to easily ingest, transform, and consume data.
Contribute to data observability, governance, documentation, and platform visibility
Drive strong engineering practices
Evaluate and integrate emerging technologies that enhance scalability, reliability, and AI integration in the platform.

Reqired Staff Software Engineer - Distributed Systems Quality Platform
About the role:
Were building the next-generation testing platform that will redefine how complex distributed systems are validated at scale. Our mission is to create an automated, intelligent testing environment that continuously validates the correctness, performance, and resilience of the Data Platform across every layer of the stack. This is an opportunity to reinvent how next-gen infrastructure is tested, leveraging both proven engineering techniques and the latest AI-driven approaches. Youll work on solving some of the hardest challenges in large-scale systems engineering: How do you validate correctness in deeply parallel I/O systems? How do you uncover reliability gaps that appear only under extreme concurrency? How can AI tools help us automatically generate test scenarios, analyze failures, and predict weak spots before they occur?
As a Staff Software Engineer, youll be at the center of these questions. Youll set the technical direction, design testing frameworks that scale with our product, and partner across engineering to raise the bar for quality.
What Youll Do:
Design and implement a next-generation testing and quality framework for distributed systems, enabling automated validation of functionality, performance, and resilience.
Leverage AI-driven tools to scale the testing environment, including automated test generation, intelligent workload synthesis, and anomaly detection.
Create end-to-end testing environments that simulate real-world scale, stress, and failure conditions.
Define and drive the technical strategy for testing across, setting the standard for quality engineering.
Mentor and influence engineers across teams, fostering a culture of technical rigor and reliability obsession.
Collaborate with product and infrastructure teams to ensure the testing platform is deeply integrated into our development lifecycle.

we are a global leader in control systems for quantum computing, a field on the verge of exponential growth.
Our innovative hardware and software mark a groundbreaking approach in quantum computer control, scaling from individual qubits to expansive arrays of thousands.
At the core of our company lies a passionate and ambitious team committed to reshaping the construction and operation of quantum computers. Our work is fueled by a deep understanding of customer needs, driving us to deliver unparalleled solutions in this revolutionary field.
We are looking for a highly experienced Backend Developer - Design and develop the core backend software layer over the company's specialized flagship product. It is a unique opportunity to join a team of top-notch engineers and work on cutting-edge technologies in a fast-paced environment of quantum computation.
Join us in this exciting journey to redefine the future of quantum computing.

we are looking for a Principal Engineer.
As a Principal Engineer, youll act as a hands-on technical leader, working across backend, frontend, infrastructure, and tooling. Youll help modernize our platform, lead technical initiatives, and participate in the adoption of our AI tools and developer acceleration technologies.
● As a Principal Engineer, youll act as a hands-on technical leader, working across backend, frontend, infrastructure, and tooling. Youll help modernize our platform, lead technical initiatives, and participate in the adoption of our AI tools and developer acceleration technologies.
● Architectural leadership: Be part of shaping the future of our Python-Angular stack, tackling legacy challenges, improving performance, and guiding modern design patterns.
● AI enablement: Evaluate, adopt, and integrate AI tools (e.g., code assistants, testing automation, smart documentation, productivity tooling) to improve development workflows and team velocity.
● Cross-team collaboration: Work with tech leads, engineers, and product leaders across our Israeli and offshore teams to guide technical direction and elevate practices.
● Engineering multiplier: Lead code/design reviews, establish standards, and mentor others on clean, scalable, and testable code.
● Strategic execution: Own and deliver critical infrastructure or platform-level projects from design through implementation.
● Cultural leadership: Foster a culture of learning, ownership, and high-quality engineering across the org.
Mentorship: Act as a senior mentor to engineers across teams, guiding technical growth, sharing knowledge, and foste, and fostering engineering excellence.

we are a global leader in control systems for quantum computing, a field on the verge of exponential growth, bringing about opportunities like those made possible with the invention of classical computing 50 years ago. At our company, we provide the worlds most leading researchers and organizations with the critical tools they need to develop useful quantum computers. our companys hardware and software represent a new paradigm for controlling quantum computers, from a single qubit to hundreds and thousands. We are assembling the strongest team of professionals in the world with the goal of revolutionizing how quantum computers are built and controlled and accelerating their arrival. we are backed by globally recognized venture capital sponsors, including TLV Partners, Battery Ventures, Red Dot Capital Partners, Avigdor Willenz investment group, Harel Insurance, and others.
We are looking for an experienced hands-on Python Engineer who can work independently with remote teams (SW, HW, logic,) and create products that will shape the future of Quantum Computers.
The Quantum Computing SDK is the interface through which our customers run our company control system. Customers use it to configure their cutting-edge system and run their ground-breaking experiments. Various institutions from world-class universities to hyper-scalers use the SDK to calibrate their delicate QBits, perform Write and Read Quantum Computing Operations and run programs in higher level Quantum Computing languages like OpenQASM3.
Responsibilities
Develop the software for the company's Quantum Computing SDK.
Take part in all the technical aspects of the SW development from design to delivery.
Work with high standards of SW methodology, clean-code and CI.

is seeking a senior backend developer to join our growing team to improve the end-to-end product features and align the R&D solution to the company's business needs and overcome new technology challenges. Our solution is based on Java, Go, and React, moving to SaaS with multi-tenancy based on microservices architecture. We are working in Agile with TDD/BDD and extreme programming processes to complete the end-to-end lifecycle of CI/CD. We're looking for you, to develop the next generation of our leading security product.
Here we put our people first. We strongly believe in teamwork and encourage and trust our people to reach higher, learn more, and live up to their potential.
Java and GO Guru with coding hands-on ability
Set and meet the performances by KPIs
Establish a high scale multi-tenancy cloud foundation solution
Working with cutting-edge technologies in a dynamic environment, where you can learn and mentor your team members
Collaborate with Product Managers, Frontend and Backend Developers, and QA Engineers

A leading cybersecurity startup, is looking for a Senior Backend Engineer to join its growing R&D team. In this role, you will design and build scalable, high-performance backend services for the next generation of the company's security platform, aligning technical solutions with business needs. The stack includes Java, Go, and React, and transitioning to a SaaS, multi-tenant Micro-services architecture.
Responsibilities;
Design and develop scalable, high-performance backend services using Java and Go
Build and evolve a multi-tenant, cloud-native architecture
Work closely with Product, Frontend, Backend, and QA teams
Contribute to architectural decisions, performance goals, and engineering best practices
Mentor team members and collaborate in a fast-paced, innovative environment.