CrawlJobs Logo

Senior Software Engineer – Core

Israel, Tel Aviv · Job Posted February 17, 2026
Apply Position
Job Link Share

Job Description

We’re looking for a skilled and passionate Software Engineer to join our team and help build high-performance, cloud-native applications in the Secure Service Edge (SSE) space. You’ll work on complex distributed systems, solving real-world problems around scalability, performance, and secure access for enterprise customers.

Job Responsibility

  • Design and build scalable, cloud-native applications
  • Write clean, maintainable, and testable code
  • Solve challenges in performance, reliability, and fault tolerance
  • Collaborate with cross-functional teams across product, DevOps, and QA

Requirements

  • 5+ years of hands-on software development experience
  • Proficiency in Go, C#, or Java
  • Experience with relational databases (e.g., PostgreSQL)
  • Strong knowledge of microservices, Docker, and Kubernetes
  • Experience building and deploying cloud-native applications
  • Problem-solving mindset with a focus on clean, scalable design
  • Strong problem-solving and analytical skills
  • Excellent communication and collaboration abilities
  • Ability to work in a fast-paced, Agile development environment
  • Passion for continuous learning and staying updated with industry trends

Nice to have

  • Cloud Architectures
  • Cross Domain Knowledge
  • Design Thinking
  • Development Fundamentals
  • DevOps
  • Distributed Computing
  • Microservices Fluency
  • Full Stack Development
  • Release Management
  • Security-First Mindset
  • User Experience (UX)

What we offer

  • Health & Wellbeing benefits
  • Personal & Professional Development programs
  • Unconditional Inclusion environment

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Senior Software Engineer – Core

8 matching positions

Senior Software Engineer and Software Engineer II

OneDrive and SharePoint are rapidly growing services at the center of Microsoft'...
Location
Location
United States , Redmond
Salary
Salary:
100600.00 - 199000.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Master's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Experience in related to cloud scale distributed design and patterns
  • The ability to deliver informed designs and plans ahead of production and execution
  • Knowledge of others' expertise and the ability to involve multiple players (within and outside the organization) in the creation or development of novel products, processes, or research streams
Job Responsibility
Job Responsibility
  • Design and deliver systems that enable partners and ISVs to migrate from other cloud providers, improve core systems performance and efficiencies, and ensure zero customer impact throughout the change management cycle
  • Deliver systems to meet our business continuity planning goals, provide telemetry for optimizing the service and drive our response time for detecting and resolving service issues down
  • Create, implement, optimize, debug, refactor, and reuses code to establish and improve performance and maintainability, effectiveness, and return on investment (ROI)
  • Contribue to the identification of dependencies, and the development of design documents for a product area with little oversight
  • Helps to identify other teams and technologies that will be leveraged, how they will interact, and when one's system may provide support to others
  • Contributes to determining back-end dependencies associated with product, application, service, or platform functionality for product features
  • Understands downstream effects of solutions and work provided
  • Helps to identify areas of dependency and overlap with other teams or team members and drives coordination
  • Remain current in skills by investing time and effort into staying abreast of current developments that will improve the availability, reliability, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale
  • Reviews work items to deepen knowledge of product features in partnership with appropriate stakeholders (e.g., project managers) and executes project plans, release plans, and work items
  • Fulltime
Read More
Arrow Right

Senior Software Engineer, Core Experiences

The Wikimedia Foundation is looking for a Senior Software Engineer to join the A...
Location
Location
United States
Salary
Salary:
113082.00 - 175725.00 USD / Year
wikimediafoundation.org Logo
Wikimedia Foundation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's and 5+ years related professional experience with significant experience building production web applications and services
  • Strong professional experience with JavaScript/TypeScript, Javascript frameworks such as Vue.js or React, and at least one backend language such as PHP, Python, Java, Go, or similar
  • Experience building responsive or mobile-first web experiences, with attention to performance, accessibility, and usability
  • Experience in designing and integrating with server-side APIs
  • Experience working in a self-driven, lean environment
  • Commitment to the Foundation's Mission and Values.
Job Responsibility
Job Responsibility
  • Delivery and enablement - Consistently leads the team in the delivery of medium complexity initiatives (with support) from technical discovery through delivery
  • Frontend Implementation - Improving the mobile Wikipedia product experiences that serve a global, multilingual audience across web and app surfaces
  • Backend Implementation - Takes ownership of creating RESTful APIs, from schema and contract design through to monitoring and iteration
  • Quality, testing and observability - Consistently builds and improves systems & software that is easy to test, observe and debug
  • Cross-functional collaboration - Partners with product managers, designers, analysts, and native app engineers to shape pragmatic solutions
  • Prioritisation - Proactively identifies high-impact technical opportunities and risks across a quarter
  • Mentorship - Actively supports the growth and success of others
  • Culture and standards - Raises team standards in code review, technical design, testing, documentation, accessibility, observability, and decision-making
  • Operational Awareness - Plans work with awareness of downstream or upstream effects.
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Core Java & Apache Spark

We are hiring an elite Senior Software Engineer to build and scale our core data...
Location
Location
India , Chennai, Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Core Java & JVM: Expert-level proficiency in Java, including the Collections Framework, Lambdas, and the Java Concurrency API. Demonstrable experience tuning the JVM and troubleshooting memory/GC issues
  • Apache Spark: Proven, hands-on experience developing, deploying, and tuning complex Spark applications for large-scale data transformation and analysis
  • Spring Ecosystem: Extensive, practical experience with the Spring Framework, particularly Spring Boot, Spring Data, and Spring Batch in a production environment
  • Data Structures & Algorithms: Deep understanding of fundamental data structures and algorithms, with a focus on their application in distributed computing and performance-critical systems
  • Containerization & Cloud-Native: Hands-on experience with Docker for building images and Kubernetes/OpenShift for deploying and managing distributed applications
  • Database Engineering: Strong command of SQL and relational database design, including transaction management and indexing. Experience with at least one production NoSQL database (MongoDB, Graph DB, etc.)
  • Architectural Design: Practical application of OOP, SOLID, and DDD principles to build maintainable and scalable systems. You write tests first (TDD) and believe in robust, automated testing
Job Responsibility
Job Responsibility
  • Architect & Build: Design and construct high-throughput, low-latency data processing pipelines using Apache Spark and the Spring ecosystem
  • Performance Engineering: Dive deep into JVM internals, garbage collection tuning, and Spark job optimization to maximize performance and resource efficiency
  • Distributed Systems Design: Implement scalable, resilient, and transactional architectures leveraging container orchestration (Kubernetes/OpenShift) and distributed data stores
  • Code & Design Excellence: Champion and enforce best practices in software engineering, including SOLID principles, advanced design patterns, Domain-Driven Design (DDD), and Test-Driven Development (TDD)
  • Database Mastery: Engineer and optimize data models for both relational and NoSQL databases, ensuring data integrity, performance, and scalability
  • CI/CD Automation: Own and enhance CI/CD pipelines for automated build, test, and deployment of Java applications and Spark jobs in a containerized environment
  • Technical Leadership: Lead design and code reviews, mentor junior engineers, and drive the adoption of new technologies and architectural patterns across the team
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Core Java

Our Client seeks an experienced software engineer to help them modernize their e...
Location
Location
United States , New York
Salary
Salary:
180000.00 - 220000.00 USD / Year
solomonpage.com Logo
Solomon Page
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum 7 years of comprehensive IT experience
  • 5+ years of Java development expertise utilizing J2EE and Spring framework
  • 5+ years of Oracle PL/SQL development experience
  • Advanced proficiency with Oracle RDBMS, including management of large-scale, complex datasets
  • Proficiency in C++ programming language is a plus
  • Self-motivated and able to handle tasks with minimal supervision
  • Superb analytical and problem-solving skills
  • Excellent collaboration and communication (Verbal and written) skills
  • Outstanding organizational and time management skills
Job Responsibility
Job Responsibility
  • Collaborate with product managers to develop comprehensive business specifications
  • Create detailed technical specifications in partnership with architects and software engineering teams
  • Design, develop, and maintain high-quality software applications and systems
  • Write clean, efficient, and maintainable code following best practices and industry standards
  • Lead task delegation and coordinate development team activities
  • Conduct code reviews and ensure compliance with testing standards, company protocols, and technical specifications
  • Evaluate existing systems for improvement opportunities and standards compliance
  • Research and recommend new technologies to enhance system performance and reliability
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Core Databases

Fivetran is building data pipelines to power the modern data stack for thousands...
Location
Location
Serbia , Novi Sad
Salary
Salary:
Not provided
fivetran.com Logo
Fivetran
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Execution-oriented with an understanding of targeting 'innovation budget' for greatest impact
  • Ability to design and code systems that are effective, intuitive, easy-to-operate, and elegantly simple
  • Experience with relevant tooling and techniques: cloud services, network protocols, serialization, relational databases, etc.
  • Knowledge of complex structures, object orientation, exceptions, memory management techniques
Job Responsibility
Job Responsibility
  • Learn deeply about Fivetran to focus development on practical and relevant system improvements
  • Contribute to the development and planning of our roadmap
  • Collaborate with a small core team and a broader set of stakeholders
  • Work across the project lifecycle: requirements, design, prototype, implementation, review, release, monitoring
  • Review and approve pull requests
  • Care and feel ownership of our product, and leverage your skills towards improving it
What we offer
What we offer
  • 100% employer-paid medical insurance*
  • Generous paid time-off policy (PTO), plus paid sick time, inclusive parental leave policy, holidays, and volunteer days off
  • RSU stock grants*
  • Professional development and training opportunities
  • Company virtual happy hours, free food, and fun team-building activities
  • Monthly cell phone stipend
  • Access to an innovative mental health support platform
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Core OS / Windows

Would you like to be a part of the team that makes the critical software fabric ...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR equivalent experience
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check
  • Experience with multi-threaded software development
  • Experience with software debugging
  • Understanding of virtual machines for Windows and Linux, and container based computer environments
  • Understanding of VM/Host architecture on Windows Server
  • Effective communication and collaboration skills
  • Proficiency in systems software concepts and experience developing APIs and services in a systems-level environment
Job Responsibility
Job Responsibility
  • Influence architecture requirements and portability of software across varied platforms and implement functionality using the latest software development life cycle techniques and tools
  • Ship quality code whether it is in kernel or in user mode and ensure it has diagnosability and observability built into it for production level usage
  • Support and contribute to an inclusive and collaborative team culture
  • Collaborate with internal and external partners to identify requirements, trends and opportunities
  • Participate and influence a culture with a focus on making customers successful and improving developer productivity
  • Embody our Culture and Values
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Core AI

The Experimentation Platform (ExP) team powers Microsoft’s end-to-end experiment...
Location
Location
China , Beijing
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of experience in software engineering OR equivalent experience
  • Strong coding skills in one or more languages: C#, Java, Scala, Python, or C++
  • Proven ability to design and deliver components of large distributed systems or data platforms
  • Solid understanding of data structures, algorithms, distributed system fundamentals, and debugging complex systems
  • Fast learner with strong communication skills and the ability to work effectively across teams
Job Responsibility
Job Responsibility
  • Design and build components of the experimentation platform, including large-scale data pipelines, metrics/analysis authoring, distributed workflows, and critical experiment lifecycle services
  • Develop high-performance and reliable systems using C#, .NET, Spark pipelines, Azure services, and modern data/compute frameworks
  • Integrate AI-driven agents and automation to improve debugging, monitoring, validation, and self-service capabilities for experiment owners
  • Optimize efficiency, cost, resource utilization, and pipeline throughput across a global fleet
  • Improve platform fundamentals including observability, reliability, test automation and recovery workflows
  • Collaborate with PMs, data scientists, platform engineers, and partner teams (across global Microsoft engineering centers) to design scalable solutions
  • Participate in code reviews, incident response, performance tuning, and architectural discussions
  • Engineer features with a strong focus on quality, transparency, resiliency, and operational excellence
  • Fulltime
Read More
Arrow Right

Senior Software Engineer, Core Services

Lime is looking for an experienced Backend Software Engineer to join the team an...
Location
Location
Canada
Salary
Salary:
136000.00 - 170000.00 CAD / Year
li.me Logo
Lime
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of industry professional software development experience and a track record of building impactful products or systems
  • Skilled at writing logical and maintainable code, and providing clear feedback in code reviews
  • Customer obsessed
  • Data driven
  • Owner’s mindset
  • Outcomes oriented
  • Strong influencer
  • Strong collaborator
  • Technical proficiency to understand and contribute to the design and implementation of projects and ideas
  • Excellent communication and effective prioritization skills in working with competing priorities
Job Responsibility
Job Responsibility
  • Identify, define, and solve strategically essential technical problems, including architecting and building highly scalable foundational platforms and revamping existing core application experiences
  • Scrutinize and reason clearly about the technology and architecture we make
  • Building scalable, efficient, and stable software to power our electric vehicles and related features
  • Participate in cross-functional collaboration with PMs, Engineers, Design, Data Scientists, Research, and Operations teams
  • Advise Lime’s leadership team on key technology adoption and process improvements
  • Contribute to shaping the overall engineering culture at the company
What we offer
What we offer
  • Offers Equity
  • Offers Commission
  • Fulltime
Read More
Arrow Right