דרושים » תוכנה » backend & data Developer (.NET Core /Cloud)

we are looking for an experienced Senior Full Stack Developer to join a large-scale, mission-critical project delivered by CodeValue for a leading Israeli government organization You will be part of a professional development team working on a modern digital system, combining backend and frontend technologies, cloud infrastructure, containers, and AI capabilities. This is an excellent opportunity to work on a large-scale, high-impact system in a challenging and technologically advanced environment. What You'll Do
* Design, develop, and maintain complex software systems.
* Develop backend services using ASP.NET Core 8 and C #
* Develop modern frontend applications using Angular 18
* Work with Angular Material, Signals, and RxJS
* Develop and optimize solutions based on SQL server
* Work with Elasticsearch in large-scale environments.
* Develop and deploy containerized applications using Docker and Kubernetes
* Work with cloud environments and modern development infrastructure.
* Work with AI tools and Large Language Models (LLMs) as part of the development process.
* Collaborate with developers and other professional teams in a large-scale environment.
* Use configuration and source-control tools such as Git and Azure DevOps
* Contribute to the design, development, and improvement of mission-critical systems.

We are seeking an Infrastructure Backend Developer to join a backend-only engineering team that owns some of the companys highest-scale and most business-critical services - the backbone of our product. The team is responsible for video ingestion of HLS streams, a video editing service that runs on CPU and GPU workloads in Kubernetes, and 20+ additional backend services. Our infrastructure runs 24/7 with elastic scaling that can grow to very high capacity during peak usage.
In this role, you will own outcomes end-to-end, mentor teammates, and drive both technical design and code reviews. You should be a methodical problem-solver capable of decomposing complex initiatives and prioritizing effectively. Above all, we value high-ownership, low-ego collaborators who bring positive energy to the team.
What youll do:
Design, build, and operate backend services and APIs at scale, with emphasis on reliability, performance, cost awareness, and operability in production.
Own projects end to end: clarify requirements with stakeholders, propose approaches, implement incrementally, and follow through on rollout, monitoring, and iteration.
Collaborate with Product, Operations, Account, DevOps, and engineering teams to deliver cohesive solutions for streaming ingestion, processing pipelines, and backend infrastructure.
Optimize systems for throughput, latency, resource utilization, and stability under spiky and peak traffic patterns.
Investigate and resolve production issues with a calm, systematic approach; improve observability and runbooks so incidents become easier to prevent and recover from.
Mentor engineers through pairing, design discussion, and feedback; setting standards and raising the bar.
Participate actively in agile planning, architectural conversations, and code reviews; contribute to technical review and sound engineering judgment across the team.
Stay current on relevant technologies (cloud, Kubernetes, streaming, data stores, performance engineering) and pragmatically adopt tools - including AI-assisted development where they improve velocity without compromising quality or stability.

a global leader in advanced human-guided autonomous drone systems, is looking for a Backend Software Developer to join our R&D team and take part in building the core software that powers our real-time autonomous and mission-critical systems used by defense and security forces worldwide.

As part of our core development team, you will design, develop, and maintain high-performance backend software written in C++, supporting real-time data processing, control flows, and system integration. You will work closely with cross-disciplinary teams and take ownership of backend services throughout their full lifecycle - from design and development to deployment in production environments.

This is a unique opportunity to work on complex, real-world systems at the intersection of robotics, autonomy, and high-performance software engineering.

Responsibilities

Design, develop, and maintain high-performance backend software in C++
Implement robust, scalable, and efficient system components for real-time operation
Collaborate with diverse teams across all disciplines to bring innovative ideas to life
Integrate and test various internal and external APIs
Participate in architecture design, technical decision-making, and system integration
Optimize performance, reliability, and resource usage for mission-critical environments
Conduct code reviews and ensure high code quality and adherence to best practices
Debug, profile, and maintain complex production systems

We are a global investment platform connecting accredited investors and institutions with vetted, early-stage startups and venture funds. Behind that platform sits a tech organization building the systems that power how thousands of investors discover, evaluate, and act on private-market opportunities. We're now expanding our Technology team with engineers who can build the next generation of AI-driven products at the core of our platform.
 
Why Join Us? This is a chance to build at the intersection of fintech and applied AI, not as a side experiment, but as the direction of the product. You'll design and ship production-grade backend and FullStack systems that sit at the heart of a real, global investment platform, while being hands-on building AI agents that teams across the company actually depend on: architecting scalable microservices in Node.js, putting LLMs and agentic tooling to work, and owning features end to end from design through deployment.
Because real users and real capital flow through our platform, your work ships and matters from day one. You'll get real ownership over the features you build, hands-on exposure to how we adopt agentic AI, and a front-row seat to the startup and innovation ecosystem we live inside every day. If you want to master cutting-edge AI tooling while solving hard distributed systems problems alongside a small, sharp team - this is the place to do it.
This role requires 3 days a week in-office with the technology team primarily based out of Tel Aviv. Since we are headquartered in Jerusalem, candidates based in and around Jerusalem are welcome to apply, provided they're comfortable with Tel Aviv as the team's main hub.
Responsibilities:
 
* Design, build, and ship production backend and FullStack features for our investment platform using Node.js and microservices
* Build and deploy AI agents and LLM-powered tools used in production across the company, from prototype to rollout
* Architect and maintain scalable microservices, integrating SQL and NoSQL data stores as needed
* Design agentic workflows and orchestration pipelines, using low-code tools (e.g. n8n, Make) alongside custom services where appropriate
* Own features end to end: design, estimation, implementation, testing, deployment, and monitoring
* Partner with product, data, and engineering teams to turn business and investor needs into technical solutions
* Evaluate emerging LLM frameworks and AI tooling to keep our stack current and production-ready
* Write clean, well-tested code and participate in code reviews to uphold team quality standards
* Troubleshoot issues across the stack, balancing delivery speed with the reliability a capital platform demands
* Help shape architecture, tooling, and best practices as the team scales its use of agentic AI

Interview Process:
* Recruiter phone call
* Take home assignment
* In-person interview with Manager
* In-person interview with Department Head
* In-person interview with HR
* References

We are looking for Senior Engineers who treat AI as a core part of their workflow - people who experiment, iterate, and know how to get real value out of AI tools. Flexibility, curiosity, and a problem-solving mindset are must-haves. In this role you will have the opportunity to take ownership of the development of groundbreaking, AI-driven products and work on interesting projects inside a smart, fun, and dynamic engineering team.

This position is based out of our Jerusalem or Tel-Aviv offices and reports to the Dev Team Lead.

What you will be responsible for
Write clean, high-quality, high-performance, maintainable code.
Ensure that the projects you work on meet business objectives and coding standards.
Support the deployment and testing of new products and features.
Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications.
Design and implement APIs and integrations with third-party services to enhance system functionality.
Optimize application performance through code profiling, monitoring, and refactoring as necessary.
Implement automated testing frameworks to ensure code robustness and reliability.
Participate in code reviews and provide constructive feedback to peers to foster continuous improvement.
Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team.
Assist in the establishment and enforcement of development standards and coding conventions.

we are looking for an experienced Backend Developer that lives and breathes technology to join our team. In this role, you will be responsible for designing and implementing backend systems that connect and integrate with customer environments. You will work closely with customers, field engineers, and product teams and be an integral part of the thought and design process of our methodologies and practices which guide us in the critical path of customer onboarding, integration and data flow. The role requires creativity, research and problem-solving skills as well as deep technical knowledge and the ability to deep-dive into complex and difficult problems.
What you will do:

Design and implement backend systems that connect and integrate with customer environments

Identify, collect and model data from large-scale environments

Stay up-to-date with industry trends and advancements in backend development

Develop reliable production-grade code which will run side-by-side with customer applications in scale

Dive into a world of endless technologies and explore the latest and greatest cutting-edge software programming languages and frameworks

Collaborate with the product team to create a seamless integration and onboarding process for our customers, including designing the workflow and features that will make the experience as smooth and efficient as possible

Develop key components in the companys architecture, supporting complex use-cases for the present and future

Develop concurrently at immense scale, with billions of requests for hundreds of customers every day

Lead major changes, taking initiative and influencing the products technical and business growth

Work with your teammates to guide R&D through the evolution of the platform, advising and influencing at every scope

Take end-to-end responsibility for your code, through development, testing, rollout and scale-up

As a Senior Platform Engineer (Backend), you will play a key role in shaping the core infrastructure and architecture of our platform. You will be deeply involved in hands-on development, contribute to technical design, and help drive engineering excellence. In this role, you will collaborate with other engineers, share best practices, and take part in building scalable, high-quality backend systems.

Your responsibilities
Design, develop, and test cloud-native microservices and backend components with high standards of scalability, reliability, and security.
Own key areas of the platform's infrastructure and contribute to the architecture of enterprise-grade systems.
Collaborate with engineering and product teams to translate business needs into robust technical solutions.
Work across a modern tech stack including cloud services, Linux, Docker, Kubernetes, and CI/CD pipelines.
Drive best practices in code quality, system design, observability (logs, metrics, tracing), and testing.
Stay up to date with emerging technologies and help evaluate tools that support platform evolution.
Share knowledge through code reviews and technical discussions, fostering a culture of continuous improvement.

Youll work in an awesome environment alongside some of the most innovative people in the industry, using cutting-edge technologies and tools (video editing, Gen AI, data, etc.). At our company, you have the opportunity to directly influence the products and tools used by our clients, including sports giants such as the NBA, Bundesliga, LaLiga, ESPN - and thats just the beginning of what our company has to offer! Join us and be a part of the best team in tech as we Fuel the Fandom worldwide.
What youll do:
Carry out analysis, design, development, and delivery of our sports products.
Design, develop, and maintain backend services and APIs
Set high coding standards and ensure best practices are followed across the backend team.
Lead the design, architecture, and scaling up of the group solution
Be a tech mentor for developers in the group.

We are looking for ambitious talents to join our amazing dev team!
The team is responsible for the backend development of multiple SaaS web products (CRM, Commerce, Data Automation) in a highly innovative, technical, and empowering work environment.
Our products are in use by millions of users worldwide, delivering smart and intuitive web experiences that put the end-user in the center.
In this role you will design & develop a challenging high-end SaaS web products for some of the biggest operations in the world, in a great work atmosphere and with highly skilled teammates.
Responsibilities:
Design, build, and maintain efficient, reusable, and reliable code for the development of our API and backend services
Work closely with your team leader and engineering colleagues to implement the best possible solutions and products

We are looking for a Senior Backend Engineer to join our R&D team in developing the new rising product in the health landscape.

As a Senior Backend Engineer at Lumen, you will have an impact on how we architect, build, scale, and maintain our backend systems. You will provide technical guidance and mentorship to other engineers on the team, help establish and maintain best practices for development, and participate in the development of the companys technological roadmap. Youll solve complex engineering challenges and drive engineering excellence in a dynamic environment and rapidly increasing scale.

Our ideal candidate has a real passion for making a positive change in the world, for technology and customers, has great communication skills, and loves to constantly improve themselves, our working practices, and our code base.

This is a great opportunity to join the core team of a growing, successful startup and work with the most advanced technologies.



Responsibilities

Lead/Participate in system design and architecture discussions.
Implement and own infrastructure and features; be involved and impact the entire product lifecycle (concept, design, test, release, and production support).
Teach, mentor, grow, and provide advice to other domain experts and individual contributors.
Acquire an in-depth understanding of our technical challenges and strive to improve them.
Play a central role in technical, business, and organizational contributions.
Be a vocal advocate for technical excellence and help the team members make sound decisions.
Work with product managers, data scientists, and other team members to understand the desired requirements and provide your feedback to improve the outcome of the feature.