דרושים » ניהול ביניים » Senior Back End Developer

We are seeking an experienced Backend Developer with a minimum of 5-6 years of hands-on experience to join our development team. As a Backend Developer, you will be responsible for designing, developing, and maintaining robust solutions for our suite of products, as part of the team responsible for the heart of our technology stack. You will work with cutting-edge technologies, including Node.js, Nest.js, TypeScript, PostgreSQL, and AWS services.
Responsibilities
Design, develop, and deploy scalable and high-performance backend solutions to support our web and mobile applications.
Write clean, maintainable, and well-documented code in TypeScript, following best practices and design patterns.
Implement and maintain database schemas, queries, and optimizations using PostgreSQL.
Perform code reviews, troubleshoot issues, and provide technical support to ensure the reliability and performance of backend systems.
Collaborate closely with the product team, FE developers, QA engineers, and other stakeholders to understand requirements and translate them into technical specifications and implementation plans.

our company, an early stage and well funded startup, is now looking for an experienced Backend developer to join a growing and dynamic R&D team. we are revolutionizing the way shipping companies operatereplacing outdated manual work with smart, AI-powered tools that bring them into the future of global trade. We offer an AI-based pricing optimization and shipment automation web platform designed to eliminate inefficiencies regarding freight pricing, placement, and shipping in general.
At our company, we put smart technology at the heart of everything we do. Our R&D teams push, embrace, and actively encourage the use of coding assistants and AI-driven development to transform the shipping industry. Were always improving how we workadopting modern development practices that help us move faster, write better code, and collaborate more effectively. This is your chance to join early, make a real impact, and grow with a team thats shaping the future of global logistics.
As a Backend Developer at our company, youll be building powerful features that push the boundaries of what technology can do in global trade. You'll work alongside a talented and diverse team of engineers, product minds, QA specialists, and domain expertseach bringing deep knowledge and fresh perspectives. In this role, youll take full ownership of complex backend systems, designing and developing robust server-side architecture from start to finish. We value independence, accountability, and the drive to turn ambitious ideas into production-ready reality.
Roles & Responsibilities:
Write scalable server-side code using Python.
Work in AWS cloud environment
Implement and maintain RESTful APIs for seamless communication between FE and BE.
Work with rational/nosql/objectstores such as MongoDB, PostgreSQL, Neptune, s3 to store and retrieve data
Write clean, readable, quality and testable code writing.
Test and debug applications to ensure high quality and performance.
Review pull requests to ensure high quality and maintainable solutions.
Seeing through a project from conception to delivery.
Follow-up on new evolutions of technology and take initiative to understand how the development will look tomorrow and help us get there.

a leader in cloud-native networking software for Hyperscalers and service providers who are building the largest infrastructures in the world for network services and AI platforms. Founded in December 2015, disrupted some of the most challenging high-scale markets, transforming the way Networks are built, scaled, and consumed. We also built the largest network in the world, with more than half of AT&Ts backbone running on Network Cloud. has raised $587 million in three funding rounds which enable us to dream big and bring on the most talented people.

The Role
We are looking for a Platform Backend Team Lead to join our Network Orchestration group. Our group is responsible for developing scalable, high-performance distributed systems that support complex network infrastructures.
As a Platform Backend Team Leader, you will be responsible for designing, developing, and maintaining core backend infrastructure that supports multiple teams and projects. You will work closely with stakeholders to understand their needs, define best practices, and build scalable, reliable, and secure solutions. Your role will involve leading a team of 4+ engineers, driving architectural decisions, and ensuring the platform's long-term sustainability and efficiency.

This position requires a blend of technical leadership, strategic thinking, and hands-on expertise to build solutions that enhance productivity, security, and scalability across the organization.

Our group is growing, and you will play a key role in building and expanding the team. You'll have the opportunity to optimize and enhance key parts of our system, leveraging the latest tools and infrastructure to drive innovation and efficiency.

We embrace an agile mindset you should be comfortable with context switching, handling multiple priorities, and adapting quickly to changing requirements.

Responsibilities
Lead & mentor a high-performing development team in building advanced, scalable software solutions.
Architect and implement robust and maintainable backend solutions.
Ensure scalability & performance by optimizing distributed systems and database architectures.
Collaborate with engineering teams across different departments to gather requirements and define solutions that meet business needs.
Define and enforce best practices for API design, microservices architecture, and security concepts.
Drive performance improvements, optimizations, and incident response processes.
Stay updated with the latest technologies and best practices in backend architecture, cloud platforms, and security.
Coordinate with Product Managers to align development with business priorities and roadmap planning.
Work alongside the Project Manager to track progress, mitigate risks, and ensure timely delivery of features.
Work with DevOps teams to streamline CI/CD pipelines and automate infrastructure deployment.

Were looking for a Senior Backend Data Engineer to design and optimize high-performance infrastructure capable of handling massive data volumes. In this role, youll lead backend development, architect scalable data pipelines, and ensure seamless data processing. Your expertise in distributed systems and performance optimization will drive innovation, transforming intricate security challenges into efficient, resilient solutions.
Responsibilities
Be a significant part of the development of backend infrastructure to efficiently handle, process, and store vast volumes of data.
Architect and build a scalable, high-performance backend system that supports various services within the platform.
Translate intricate requirements into meticulous backend design plans, maintaining a focus on software design, code quality, and performance.
Collaborate with cross-functional teams to implement backend and data-handling techniques.
Apply your expertise to create robust backend solutions.
Leverage your proficiency in cloud platforms such as AWS, GCP, or Azure to drive strong backend engineering practices.
Demonstrate strong debugging skills, identifying issues such as race conditions and memory leaks within the backend system. Solve complex backend problems with an analytical mindset and contribute to a positive team dynamic.
Bring your excellent interpersonal skills to foster collaboration and maintain a positive attitude within the team.

We are growing and are looking for a Senior Backend Data Engineer to join our mission in developing life saving software!
Job Description:
We are growing fast, and as we grow we scale both in the number of patients we treat and in the number of products we have in our portfolio. Your mission is to design and build the next-generation data infrastructure and pipelines, in addition contributing to an ongoing project that serves both our customers and internal data teams with scalable and reliable solutions.
You will:
Make a critical contribution to shaping and developing the core of our Data Platform used for AI research and business intelligence, from design to implementation.
Design and build complex data pipelines to move and manipulate data from a wide variety of data sources.
Create a system that will be used to support our data product offering.
Closely collaborate with various teams, including Software Engineering, AI Engineering and Product Management .
Tech stack:
We are running on AWS with Python as the main programming language for the backend. We are using various technologies such as S3, DBT, ETL, ELT, DynamoDB, Postgres, RabbitMQ, Docker, Redis, Prometheus, Terraform and others. We are always open to new technologies and tools that will help us to do our job even better.

Were looking for a Tech Lead Software Engineer to join our Core Platform team, who will be part of the group responsible for infrastructure platform.
This role is ideal for an engineer who's passionate about designing scalable and resilient systems, shaping architectural direction, and driving long-term platform evolution. As a Tech Lead of the team, you'll work closely with architects and senior engineering leadership, and get the opportunity to have a wide impact on the technical direction across the organization.
What youll do:
Lead architectural initiatives and design end-to-end solutions for scale, resiliency, and maintainability as part of the infrastructure platform group
Contribute to the codebase, write production-grade code, build critical components.
Collaborate with architects, product managers, engineers, and DevOps to align platform direction with business goals.
Review system designs and code to ensure quality, performance, and consistency.
Mentor other engineers and help elevate the technical bar for the entire team.

Required Senior Backend Engineer User Data
Realize your potential by joining the leading performance-driven advertising company!
As a Senior User Data Engineer in the Demand group in our Tel Aviv office youll play a vital role in developing one of the largest real time big data operations in the world to support over 40TB of new data every day.
Our Tech Stack: Java, JS, TS, Python, Reactive, Spark, Kafka, Hadoop, Cassandra, Vertica, ES, MySQL, Memcached, HDFS, Iceberg, BigQuery, Druid, Kusto, Docker, K8S, Linux, Prometheus, Grafana, Airflow
Gen AI: Cursor, Junie, GitHub Copilot, Langfuse and much more
How youll make an impact:
As a Senior Software Engineer, youll bring value by:
Design, develop, and address scalability challenges in our user data pipeline and identity graph, ensuring efficient handling of high-throughput, high-performance systems
Have end to end ownership: Design, build, ship, measure and maintain our frontend and backend services
Collaborate with the brightest software engineers team members
Influence directly on the way billions of people discover the internet
Develop at unimaginable scale, serving thousands of requests per second
Work on innovative projects that are the next growth engines
Here are some of the things software developers in our group did in the last several months:
A unique data pipeline for processing and managing user data signals
Driving our data advantage by leveraging real-time user signals to uncover intent and boost key business performance metrics
Develop a complete user identities graph and find deterministic and probabilistic methods to enrich it
An algorithmic model to predict the performance potential of a specific audience
Infrastructure to create unique audiences for advertisers based on various signals (behavioral, contextual, etc)
An A/B tests system to explore variations and experiments over audiences
Understand and use big data algorithms to estimate key business metrics over billions of impressions
Build user interface using React that serve thousands of users.

We're looking for a Senior Backend Engineer to join our Platform Engineering group!
A day in the life and how youll make an impact:
Were a team within the Platform Engineering group, focused on building the foundations that power both our companys product and developer experience. Our work spans two main areas: core services like authentication, file management, and a communication platform used to reach our company users and partners; and developer experience, where we define how services are built and run - from infrastructure standards and CI/CD to deployment and observability.
We collaborate closely with all R&D teams and the architecture group, with broad influence and visibility across the company. Its an environment where strong engineers can lead, shape decisions, and make a lasting impact on how engineering is done.
Youll work side-by-side with experienced engineers to design and evolve core infrastructure and backend services that impact the entire R&D org.
Youll collaborate with other teams to answer questions, guide best practices, and help engineers get unstuck - earning trust as a go-to person for platform expertise.
Youll participate in thoughtful technical discussions, helping raise the bar for engineering quality across the board.
Youll have the freedom to innovate, take risks, and influence tech decisions with a long-term, org-wide mindset.

We're looking for a Senior Backend Engineer to join our Platform Engineering group!
A day in the life and how youll make an impact:
Were a team within the Platform Engineering group, focused on building the foundations that power both our companys product and developer experience. Our work spans two main areas: core services like authentication, file management, and a communication platform used to reach our company users and partners; and developer experience, where we define how services are built and run - from infrastructure standards and CI/CD to deployment and observability.
We collaborate closely with all R&D teams and the architecture group, with broad influence and visibility across the company. Its an environment where strong engineers can lead, shape decisions, and make a lasting impact on how engineering is done.
Youll work side-by-side with experienced engineers to design and evolve core infrastructure and backend services that impact the entire R&D org.
Youll collaborate with other teams to answer questions, guide best practices, and help engineers get unstuck - earning trust as a go-to person for platform expertise.
Youll participate in thoughtful technical discussions, helping raise the bar for engineering quality across the board.
Youll have the freedom to innovate, take risks, and influence tech decisions with a long-term, org-wide mindset.

We're looking for a Senior Backend Engineer to join our R&D team. You will work closely with our product team to build our unique product offering. As a Senior Backend Engineer, you will be responsible for building complex backend designs that are both scalable and fault-tolerant, developing our data ingestion pipeline and introducing new analysis engines.

What You'll Be Doing:
Design, develop, test, deploy, maintain and improve the software.
Youll have your domain of expertise in which you'll assist the product team with future directions, lead the technology and cooperate with other engineers.
Youll develop backend services that integrate with and ingest data from various cloud providers that store sensitive data.
Youll build pipelines that analyze, classify, correlate and process this data.
Youll build systems that detect anomalies in the ingested data for alerting the customer, that automatically resolve issues and that generate sophisticated yet easily consumable insights arising from the processed data.
Youll have end-to-end responsibility from the technical design phase up to making sure the system is scalable and can meet high customer demands in production.
Youll identify and solve for bottlenecks within our software stack.
Youll bring innovation to the product
Youll work in an agile environment that focuses on high velocity and responds quickly to new insights.
As an all-around player, you'll work closely and at a high pace with other engineers, product, design, and other internal key stakeholders, as well as have a direct line of sight into how your work solves real-world problems for our clients and accelerates our business.