דרושים » תוכנה » Senior Backend Developer - 2421

we are the trading and investing platform that empowers users to invest, share and learn. We were founded in 2007 with the vision of a world where everyone can trade and invest in a simple and transparent way. We have created an investment platform that is built around collaboration and investor education. On our platform, users can view other investors portfolios and statistics, and interact with them to exchange ideas, discuss strategies and benefit from shared knowledge. We have over 38 million registered users from 75 countries and our platform is available in 20 languages. We are a fast growing business with over 1,500 employees across 13 offices around the globe, strategically positioned to serve the needs of users. You can find out more about us here.
As a Senior Backend Developer, you will be the team leaders right hand, taking a key role in technical leadership, architectural decisions, and problem-solving in a fast-paced environment. You will work at the intersection of trading and financial services, using your expertise in C#, .NET, Kubernetes, and Azure cloud to build high-performance, secure, and scalable solutions.
Your Role & Responsibilities:
Technical Leadership:
Provide technical expertise and mentorship to the team, promoting best practices and modern technologies.
Play a key role in architectural decisions, ensuring performance, scalability, and security.
Research and introduce new technologies to enhance system capabilities.
Hands-On Development:
Design, develop, and maintain distributed, microservices-based systems in C# and .NET.
Build and enhance trading-related financial services with Azure cloud infrastructure.
Develop and optimize high-performance, fault-tolerant backend systems.
Problem-Solving & Production Excellence:
Tackle complex technical challenges in performance, fault-tolerance, and security.
Own critical production issues, ensuring fast resolution and system reliability.
Work proactively on preventing potential failures before they impact business.
Collaboration & Communication:
Actively participate in requirements definition and system analysis.
Work closely with Product, Finance, and Legal teams to ensure alignment with business goals.
Drive cross-team solutions, balancing complex dependencies and technical constraints.
Results-Oriented Mindset:
Be a self-learner and problem solver with a can-do attitude.
Take ownership of projects end-to-end, from concept to production.
Maintain high-quality standards while delivering under tight deadlines.

The Fraud Detection team is looking for a strong Senior Backend Engineer to help scale and evolve our industry-leading real-time fraud prevention systems.
We develop high-throughput, low-latency services that power real-time decision-making at scale. Our platform combines modern backend engineering with advanced streaming, big data technologies, and AI-powered models to protect businesses and their users from fraudinstantly and effectively.
This role is critical in delivering scalable backend infrastructure to power our machine learning-driven fraud detection capabilities.
What youll do
Design and Build Scalable Backend Services:
Design and implement real-time streaming applications for processing high-throughput data using Kafka and gRPC
Develop scalable and reliable streaming solutions for fraud detection and prevention.
Develop and Optimize ETLs:
Build, and maintain batch pipelines for data enrichment, normalization, and aggregation using tools like Spark and BigQuery.
Ensure data pipelines are robust, scalable, and cost-efficient.
Support Data Science and ML-Ops:
Collaborate with Data Science teams to operationalize machine learning models in real-time streaming environments and batch ETLs.
Focus on Performance and Resilience:
Continuously improve the throughput, latency, and fault tolerance of critical services operating under high load and real-time constraints.
Collaborate Across Teams:
Work closely with Fraud Data Scientists, and Product Managers to deliver impactful solutions.
Partner with stakeholders to understand the business impact of fraud detection and align technical solutions with business needs.
Innovate and Improve:
Continuously improve the scalability and performance of existing systems.
Explore and integrate new tools and technologies to enhance streaming and batch-processing capabilities.

Required Senior Back-End Developer
We are revolutionizing the way companies connect with their customers and audiences. We enable B2B marketers fully manage and optimize social media to drive their businesses forward in a scalable and measurable way. Leading B2B organizations all over the world such as ACI Worldwide, Snowflake and Fujitsu are using us to improve and understand their social presence in order to make better business decisions. We are a global, fast-paced, and innovative start up with offices in Ramat Gan, London, and Grand Rapids (MI).
As a Senior Back-End Developer, you will be responsible for designing, building, and optimizing the core backend systems that power our B2B social media management platform. You will develop scalable and high-performance solutions, contribute to architectural decisions, and collaborate closely with cross-functional teams to deliver impactful features. If you thrive in solving complex challenges, enjoy working with modern backend technologies, and are passionate about building robust and efficient systems, we want to hear from you!
Responsibilities
Develop and maintain high-quality software solutions, from planning and design to testing, deployment, and maintenance.
Actively participate in technical discussions and contribute to architectural decisions.
Write clean, efficient, and scalable code while ensuring best practices in software development.
Collaborate closely with cross-functional teams, including Product, Design, and other developers, to deliver features effectively.
Provide technical guidance, share knowledge, and mentor other developers to improve overall team expertise.

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.

We are looking for a Senior Backend Developer.
As a Senior Backend Engineer, you will drive the end-to-end implementation of sophisticated projects, from initial design all the way to production. This will involve architecting and building complex backend systems, integrating advanced machine learning models and natural language processing techniques, and tackling challenging algorithmic problems with robust and efficient code.
Responsibilities:
Design, implement, and maintain robust, scalable backend systems
Build and maintain distributed data pipelines to ingest and process vast amounts of security telemetry in real time
Architect and evolve microservices within a modern cloud-native environment (GCP, Kubernetes, Docker)
Optimize performance and reliability of critical systems under high-throughput conditions
Collaborate cross-functionally with AI, frontend, product, and security teams to bring features from concept to production
Own your work end-to-end, from design to deployment, testing and monitoring
Contribute to a culture of engineering excellence, continuous learning, and rapid iteration

We are seeking a talented backend engineer to join our growing team, owning our innovative product, Code Defender. Code Defenders mission is to detect and protect against client-side threats and enable our customers to be compliant with the latest security and privacy standards.
As a member of the team, you will play a crucial role in ensuring the product's success, by designing and developing advanced features, handling large-scale data, aggregations, while utilizing cutting edge technologies.
Collaboration with cross-functional teams including Platform, Product, Engineering, and Research will be integral as you lead feature development from inception through to deployment, applying backend methodologies and best practices.
What you'll do:
Develop cloud-based high-scale systems: Leverage the latest in cloud technology to build systems that can handle the demands of significantly large datasets with efficiency and reliability.
E2E Ownership: Take full responsibility for projects from the initial design and architecture stages through to implementation and rollout,
Innovate and Optimize Operations: Continuously seek out and implement innovations and optimizations to improve the performance and scalability of our systems.
Tackle challenging problems and find creative ways to solve them.
Participate in cross organization engineering innovation forums and technical guilds.
Collaborate on cross-functional teams: Work closely with other technical and research teams to integrate various products seamlessly, ensuring cohesive technology solutions across the board.
Ensure System Security and Compliance: Prioritize the security of our systems and ensure compliance with all relevant data protection regulations.
Performance Monitoring and Troubleshooting: Regularly monitor system performance, identify and resolve any issues to maintain optimal operation.
Work on cutting-edge technologies in coding, data persistence, CI/CD pipelines, and data pipelines. This includes expertise in any of the common backend development languages, SQL and NoSQL databases like MongoDB and Redis, messaging systems such as Kafka, search technologies like Elastic, and cloud services.

JR295379

As a Backend Software Engineering, your job responsibilities will include:

Build new and exciting components in an ever-growing and evolving market technology to provide scale and efficiency.

Develop high-quality, production-ready code that can be used by millions of users of our cloud platform.

Make design decisions on the basis of performance, scalability, and future expansion.

Work in a Hybrid Engineering model and contribute to all phases of SDLC including design, implementation, code reviews, automation, and testing of the features.

Build efficient components/algorithms on a microservice multi-tenant SaaS cloud environment.

Code review, mentoring junior engineers, and providing technical guidance to the team (depending on the seniority level).

We are seeking a backend engineer with a strong foundation in building scalable, high-performance systems and a deep understanding of cloud infrastructure, distributed systems, and data pipelines. This role focuses on designing and optimizing backend services that support our machine learning (ML) operations and real-time personalization capabilities.
We foster a professional environment where experienced engineers collaborate to drive technical excellence, continuously improving our backend architecture and infrastructure. As a Backend Engineer, you will play a key role in building and maintaining the backend services that power our ML infrastructure, ensuring efficiency, scalability, and reliability.
Role & Responsibilities:
- Design, develop, and optimize backend services that support ML pipelines, APIs, and real-time decision-making systems.
- Architect and implement scalable and reliable data processing workflows, integrating ML models into production environments.
- Build and maintain infrastructure for efficient model deployment, monitoring, and versioning.
- Ensure high availability, performance, and security of backend services.
- Lead initiatives to improve system architecture, reduce technical debt, and enhance development processes.
- Stay up to date with the latest advancements in backend technologies, cloud computing, and distributed systems.

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.

We are seeking a skilled Backend Engineer to join our team and implement advanced AI solutions in our travel and expense management products. The ideal candidate will have strong backend engineering expertise and enthusiasm for working with cutting-edge AI technologies.
About the Role:
You'll be responsible for designing and implementing backend services that integrate AI capabilities including large language models (LLMs), retrieval-augmented generation (RAG), and conversational interfaces into our consumer-facing products. This is an opportunity to expand your expertise into AI while leveraging your strong engineering foundation.
What Youll Do:
Design and develop scalable, high-performance backend services and APIs
Implement integrations with AI platforms and services
Work with AI specialists to translate AI capabilities into production-ready features
Ensure high reliability, performance, and security of AI-powered systems
Collaborate with product and engineering teams to gather requirements and deliver solutions.