Jobs Java

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 
Over the past few years Coro has received $175M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role: 

This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while staying directly involved in coding, architecture, and delivery. You will work on core backend systems behind Coro’s cybersecurity platform, building and scaling high-load services that process large volumes of security and telemetry data in real time.

These systems are responsible for collecting, processing, and analyzing data from multiple sources, including endpoints, cloud environments, and product integrations. They support critical product capabilities such as threat detection, security analytics, anomaly identification, and automated response workflows, making this a mission-critical leadership role at the core of Coro’s product.

If you are looking for a role where you can combine leadership with technical ownership, shape team culture, and build highly scalable backend services for a fast-growing global cybersecurity platform, this is the role for you

Key Responsibilities: 

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team's various services and features

• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it.

   

Required Competence and Skills:

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Why Us?

- We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

- We provide full accounting and legal support in all countries we operate.

- We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

- We offer a highly competitive package with yearly performance and compensation reviews.

🚀 Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

📍About the Product:
Over the past few years Coro has received $275M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role:
This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while staying directly involved in coding, architecture, and delivery. You will work on core backend systems behind Coro’s cybersecurity platform, building and scaling high-load services that process large volumes of security and telemetry data in real time.

These systems are responsible for collecting, processing, and analyzing data from multiple sources, including endpoints, cloud environments, and product integrations. They support critical product capabilities such as threat detection, security analytics, anomaly identification, and automated response workflows, making this a mission-critical leadership role at the core of Coro’s product.
 

If you are looking for a role where you can combine leadership with technical ownership, shape team culture, and build highly scalable backend services for a fast-growing global cybersecurity platform, this is the role for you

📍Key Responsibilities:

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team’s various services and features
• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it

📍Required Competence and Skills:

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

Ajax Systems is an international technological company and Europe’s largest security system manufacturer. In addition, the company offers solutions for video surveillance, smart homes, fire detection, and flood prevention. The product portfolio includes 280 wireless and wired devices for security and automation. Today, Ajax protects over 4.5 million users in 187 countries worldwide. 

We are looking for a smart, experienced, and technically proficient Senior Java Developer to join our team in Kyiv office.

Required Experience:

- Java: 5+ years of professional backend development in enterprise environment
- Kotlin: Knowledge and practical work experience
- Java Concurrency: Strong understanding and practical application experience

Architecture & Design
- Understanding of SOA, microservice, and event-driven architecture
- Cloud development principles with practical AWS experience
- Ability to scale and ensure high availability of loaded systems

Technologies & Tools

Required:

- Kafka, MongoDB, NATS
- Enterprise-grade stack (messaging brokers, in-memory storages, NoSQL, key-value databases)
- Docker and Kubernetes (containerized applications)
- Git, Gradle, Jenkins
 

Nice to Have:
- Redis, Netty, Akka, gRPC, Project Reactor
 

We offer:
- The opportunity to share and implement your own ideas that could impact products and production
- Work with a motivated team and an environment with a zero-bullshit culture
- Competitive salary
- Medical insurance
- Corporate English classes

Location: Warsaw!
Start: as soon as possible
Duration: long-term
Languages: Polish is mandatory !! English: B2

Project domain: telecommunication

Hybrid: 1-2x week in Warsaw | 5+ years Java exp | English B2+
 

• Backend Core: Expert-level Java 21+ (Virtual Threads, Records) and Spring Boot 3.x production proficiency.
• Reactive & Security: Spring WebFlux/WebClient for non-blocking I/O; Spring Security with OAuth2/JWT validation.
• Event-Driven Architecture: Designing high-scale ecosystems with eventual consistency, idempotency, and process orchestration.
• Migration Leadership: Leading domain-specific transitions from Java to Node.js/TypeScript (Key Differentiator).
• API Design: Contract-first development with OpenAPI 3.x and automated client generation.
• Database & State: Spring Data MongoDB (document modeling) and distributed state handling with Redis/Caffeine.
• Observability: Micrometer, Prometheus, and OpenTelemetry for distributed tracing and post-mortem analysis.
• Resilience: Advanced Resilience4j implementation (retries, backoffs, rate limiting, and graceful degradation).
• Testing & Tooling: Spock/Groovy (BDD), WireMock, and Maven multi-module management.

A Senior Java Backend Developer is required to work on a large-scale video streaming platform with DRM, OTT services, and distributed architecture.

The role is focused on backend development, system design, and building reliable, high-load services.

What the role involves

Backend services are designed and developed as the core of the platform, handling users, content, security, and communication between multiple systems

The work directly impacts how video content is securely delivered to users across web, mobile, and TV devices.

Main responsibilities

Design and development of backend services using Java (primary language)

Development and support of REST APIs and microservices

Implementation of authentication, authorization, and access control logic

Work with high-load systems and distributed architecture

Design and optimization of database structures and data replication

Integration with DRM systems and content protection services

Implementation of content lifecycle logic (VOD, live streams, catch-up, user rights)

Ensuring scalability, fault tolerance, and performance

Implementation of monitoring, logging, and system health checks

Collaboration with frontend and infrastructure teams

Tech stack (focus)

Java (Spring / Spring Boot preferred)

REST APIs, microservices

SQL / NoSQL databases

Distributed systems and data replication

Linux-based environments

Nice to have (big advantage)

Experience with video streaming platforms (OTT, IPTV)

Knowledge of DRM technologies (Widevine, PlayReady, FairPlay)

Understanding of HLS / MPEG-DASH streaming

Experience with CDN / media delivery systems

Kotlin experience (optional)

What makes the role interesting

Work on a complex, real-world high-load system

Solving scaling and performance challenges

Building systems combining backend, security, and media streaming

Opportunity to contribute to architecture-level decisions

Candidate profile

Strong experience in Java backend development

Good understanding of system design and microservices

Experience with high-load or distributed systems

Ability to work with complex technical domains

Focus on clean, maintainable, and scalable code

Additional requirements:

English proficiency at B1 level or higher (written and spoken)

Candidate must be located outside of Russia, Belarus, Georgia, Turkey

Client from USA

Job Description

We are seeking a Technical Lead to drive the design and development of the new OneAPI backend platform, a scalable API infrastructure running on cloud-native architecture (AWS & GCP). The Technical Lead will guide a small team of engineers, provide hands-on coding expertise, and ensure delivery excellence with a DevOps-first mindset.

• 10+ years of backend engineering experience with strong expertise in Java & Spring Boot.
• Proven experience building platform-level APIs and distributed systems.
• Deep knowledge of cloud platforms (AWS and/or GCP) and cloud-native architectures.
• Strong Kubernetes (K8s) experience for container orchestration.
• DevOps mindset: CI/CD pipelines, monitoring, observability, automation.
• Experience leading small, versatile teams and collaborating across disciplines.
• Experience working in a team responsible for products quality
• Strong problem-solving and communication skills.

Job Responsibilities

• Lead architecture and technical design for the OneAPI backend platform.
• Drive best practices in coding, testing, CI/CD, and DevOps culture.
• Collaborate with stakeholders to define API standards, integration patterns, and platform roadmap.
• Provide technical mentorship and guidance to the engineering team.
• Ensure solutions are secure, scalable, and optimized for performance.
• Ensure quality of develope software
• Participate hands-on in development, especially in critical/complex components.

Department/Project Description

Our client is a global leader in cloud security, enabling organizations to securely transform their networks and applications for a mobile and cloud-first world. Through its Zero Trust Exchange™ platform, it provides fast, secure, and seamless access to applications, regardless of device, location, or network. Trusted by thousands of enterprises, their products help reduce risk, lower IT costs, and deliver a better user experience by replacing traditional on-premises security with a modern cloud-delivered approach.

• One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
  Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
  Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
  Work supposes close cooperation with Customer team located in Houston and following Agile principles.
  Our team is senior, supportive and friendly.

• Responsibilities:

  • Collaborate closely with geophysicists, data scientists, and software engineers to translate scientific domain requirements into robust on-prem or Cloud software
  solutions.
  • Design, develop, and maintain high-performance applications for geophysical and geological data analysis, interpretation and visualization (e.g., seismic, horizon,
  fault, velocity model, etc.)
  • Present architectural designs and technical proposals to the architecture review board.
  • Ability to break down development tasks and lay out clear implementation roadmaps.
  • Implement and optimize computation algorithms
  • Design and develop both thin and thick client applications that interact with cloud-based microservices.
  • Ensure high code quality through unit testing, code reviews, security hardening and continuous integration with other domain tools
  • Provide technical support and lead user troubleshooting sessions to resolve issues and ensure smooth operation of DSG application.
  • Mentor junior developers and actively contribute to architectural and implementation decisions.
  • Embrace Agile/Scrum methodologies, delivering and demonstrating working solutions at the end of each sprint
  • Stay current with emerging technologies and trends in geophysical computing and software development.

• Mandatory Skills Description:

  6+ years of hands-on Java development experience
  Strong Java Core knowledge
  Experience with desktop development frameworks: Swing, SWT, or Eclipse RCP
  Proven experience designing and building complex systems end-to-end, not just maintaining or extending existing ones
  Practical understanding of multithreaded programming: ability to implement concurrency in code directly, not only through third-party libraries
  Solid knowledge of design patterns and software architecture principles
  Ability to clearly articulate past projects, personal responsibilities, and concrete individual contributions
  Experience working in non-microservices, non-cloud-native development environments (desktop, embedded, or domain-specific platforms)
  Stable career trajectory, no fragmented job history with short tenures

• Nice-to-Have Skills Description:

  C++ development skills
  Practical experience with the Eclipse RCP framework
  OSGi knowledge
  Oil & Gas domain experience

• Languages:
  • English: B2 Upper Intermediate

We are looking for a strong Java Tech / Team Lead who combines hands-on development with technical leadership for a team of 4–5 engineers. This is a true 70% hands-on / 30% leadership role.

The company is building a modern platform that processes real-time market data and helps users make trading decisions based on deep analytics and market insights.

Key Responsibilities:

• Develop backend architecture and APIs
• Work with payments, subscriptions, and external integrations
• Ensure platform stability and continuous improvements
• Participate in system migrations and platform evolution
• Mentor and support a small engineering team
• Collaborate closely with the CTO and Product team

Requirements:

• 8+ years of backend development experience (Java + Spring)
• 2+ years in a Tech Lead / Team Lead role
• Strong experience with PostgreSQL and REST APIs
• Experience with CI/CD and Docker
• Strong understanding of complex distributed systems and integrations
• English level B2+

Nice to have:

• Experience with Stripe / payments / subscription systems
• Knowledge of OAuth2 / Keycloak
• Experience with legacy systems or migration projects
• Interest in fintech or trading domains

What we offer:

• Direct impact on a product used by thousands of traders worldwide
• Small, strong engineering team
• Fully remote work environment
• Modern fintech product with real-time data challenges
• Opportunity to shape both legacy and next-generation architecture

Project description

One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
Work supposes close cooperation with Customer team located in Houston and following Agile principles.
Our team is senior, supportive and friendly.

Responsibilities

Collaborate closely with geophysicists, data scientists, and software engineers to translate scientific domain requirements into robust on-prem or Cloud software

solutions.

Design, develop, and maintain high-performance applications for geophysical and geological data analysis, interpretation and visualization (e.g., seismic, horizon,

fault, velocity model, etc.)

Present architectural designs and technical proposals to the architecture review board.

Ability to break down development tasks and lay out clear implementation roadmaps.

Implement and optimize computation algorithms

Design and develop both thin and thick client applications that interact with cloud-based microservices.

Ensure high code quality through unit testing, code reviews, security hardening and continuous integration with other domain tools

Provide technical support and lead user troubleshooting sessions to resolve issues and ensure smooth operation of DSG application.

Mentor junior developers and actively contribute to architectural and implementation decisions.

Embrace Agile/Scrum methodologies, delivering and demonstrating working solutions at the end of each sprint

Stay current with emerging technologies and trends in geophysical computing and software development.

Skills

Must have

6+ years of hands-on Java development experience

Strong Java Core knowledge

Experience with desktop development frameworks: Swing, SWT, or Eclipse RCP

Proven experience designing and building complex systems end-to-end, not just maintaining or extending existing ones

Practical understanding of multithreaded programming: ability to implement concurrency in code directly, not only through third-party libraries

Solid knowledge of design patterns and software architecture principles

Ability to clearly articulate past projects, personal responsibilities, and concrete individual contributions

Experience working in non-microservices, non-cloud-native development environments (desktop, embedded, or domain-specific platforms)

Stable career trajectory, no fragmented job history with short tenures

Nice to have

C++ development skills

Practical experience with the Eclipse RCP framework

OSGi knowledge

Oil & Gas domain experience

Languages

English: B2 Upper Intermediate

 Who we’re looking for
We’re looking for a Senior Java Backend Developer to design, implement, and integrate highly scalable RESTful APIs and cloud-based distributed systems.
The goal is to ensure maintainable code, robust automated testing, and operational stability within a modern AWS ecosystem.

Ideal candidate:
• 7+ years of proven, practical experience with Spring Boot
• Strong proficiency in Java 17+/21, including modern language features
• Expertise in RESTful API design, implementation, and integration
• Strict adherence to clean code principles, automated testing, and SOLID, KISS, YAGNI
• Hands-on experience with cloud-based/distributed systems, specifically AWS (Lambda with Java runtime, API Gateway, CloudWatch)
• Strong CI/CD practices with a focus on monitoring and operational stability
• Very mature and fluent English for Pan-Baltic level communication
• Nice to have: Previous experience in banking, finance, or regulated environments; Quarkus experience

 Cooperation details (white-label)
• Start: ASAP, Full-time
• Format: Hybrid/Remote with occasional not being afraid office visits, paid business trip if to another country. Once per month on average.
• Budget: Open for your rates (in EUR)

 Senior Data Engineer

 Client - Enterprise Banking Client in the Baltics

One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
Work supposes close cooperation with Customer team located in Houston and following Agile principles.
Our team is senior, supportive and friendly.

Responsibilities

Collaborate closely with geophysicists, data scientists, and software engineers to translate scientific domain requirements into robust on-prem or Cloud software

solutions.

Design, develop, and maintain high-performance applications for geophysical and geological data analysis, interpretation and visualization (e.g., seismic, horizon,

fault, velocity model, etc.)

Present architectural designs and technical proposals to the architecture review board.

Ability to break down development tasks and lay out clear implementation roadmaps.

Implement and optimize computation algorithms

Design and develop both thin and thick client applications that interact with cloud-based microservices.

Ensure high code quality through unit testing, code reviews, security hardening and continuous integration with other domain tools

Provide technical support and lead user troubleshooting sessions to resolve issues and ensure smooth operation of DSG application.

Mentor junior developers and actively contribute to architectural and implementation decisions.

Embrace Agile/Scrum methodologies, delivering and demonstrating working solutions at the end of each sprint

Stay current with emerging technologies and trends in geophysical computing and software development.

Skills

Must have

6+ years of hands-on Java development experience

Strong Java Core knowledge

Experience with desktop development frameworks: Swing, SWT, or Eclipse RCP

Proven experience designing and building complex systems end-to-end, not just maintaining or extending existing ones

Practical understanding of multithreaded programming: ability to implement concurrency in code directly, not only through third-party libraries

Solid knowledge of design patterns and software architecture principles

Ability to clearly articulate past projects, personal responsibilities, and concrete individual contributions

Experience working in non-microservices, non-cloud-native development environments (desktop, embedded, or domain-specific platforms)

Stable career trajectory, no fragmented job history with short tenures

Nice to have

C++ development skills

Practical experience with the Eclipse RCP framework

OSGi knowledge

Oil & Gas domain experience

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

We are looking for a passionate and dedicated Strong Middle Java Developer to join our team in Lviv!

About the job:

It is a part of EveryMatrix platform that is responsible for collecting, storing, processing and utilizing hundreds of millions of transactions from the whole platform every single day. We develop Business Intelligent solutions, reports, 3rd party integrations, data streaming and other products for both external and internal use. The team consists of 35 people and is located in Lviv. We are looking for motivated, proactive developers willing to learn modern technologies, working in a challenging and fast-paced environment. You will be working in small cross-functional Agile teams responsible for the end-to-end development and component support using the You Build It, You Run It’ principle.

What You'll get to do:

• Extend and optimize the Rules Engine.
• Collaborate with cross-functional teams to deliver innovative solutions.
• Participate in code reviews and contribute to team knowledge sharing.
• Troubleshoot, debug, and resolve software defects and issues.
• Assist in designing and implementing new features.
• Develop unit and integration tests to ensure software quality.
• Document code, processes, and technical specifications.
• Stay up-to-date with Java best practices and emerging technologies.
• Support deployment and maintenance of applications in development and production environments.
• Participate in Agile ceremonies and contribute to sprint planning and retrospectives.

What You need to know:

• Java Core: Deep understanding of collections, performance tuning, type systems, garbage collection, and exception handling.
• Multithreading & Concurrency: Expertise in managing asynchronous computations and ensuring thread safety.
• HTTP & RESTful Services: Strong experience in developing and consuming RESTful services.
• RDBMS & SQL: Proficiency in writing complex SQL queries and a solid understanding of RDBMS theory.
• Spring Boot: Practical experience with the Spring ecosystem, including a strong theoretical foundation.
• Apache Kafka: Proven experience with Kafka, including both practical application and theoretical knowledge. Unit/Integration Testing: Demonstrated ability to write testable code with adequate coverage.

Nice to Have:

• Experience with Docker & Kubernetes. 
• Experience with the Google Cloud platform. 
• Knowledge of Online Casino/Sports Systems.

Here's what we offer:

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment, with up to 50 days of work from home per year.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference! 
 

We are looking for a Java developer with experience in building high-performing, scalable APIs and web applications.
You will be a part of a talented software development team that works on internal and external Company’s applications. You will work on new APIs as well as on supporting existing applications, refactoring, and creating new solutions, building scalable distributed systems, and integrating AI-powered capabilities into existing platforms.

Responsibilities
● Contribute in all phases of the development lifecycle including the communication with the clients and partners
● Helping Project manager to figure out the requirements and translate them to the actual tasks for the team
● Write well designed, testable and efficient code
● Ensure designs are in compliance with specifications
● Prepare and produce releases of software components
● Support continuous improvements by investigating new technologies and alternatives and presenting them for architectural review AI / Intelligent Systems Responsibilities
● Integrate AI/LLM-based capabilities into backend systems (e.g., APIs, data pipelines, internal tools)
● Design reliable orchestration flows for AI components (prompt pipelines, tool usage, fallback logic)
● Implement observability for AI systems (latency, cost, error rates, unsafe outputs)
● Ensure proper governance: validation, policy enforcement, and safe handling of AIgenerated outputs
● Work with structured and unstructured data sources to support AI-driven features
● Collaborate on designing systems where AI is a component of a larger architecture, not a standalone solution

Requirements!!!
● BS/MS degree in CS, Engineering or similar subject
● Good English
● 5+ years of proven hands-on software development experience
● Excellent knowledge of Java 17+
● Experience in Spring and Spring boot frameworks
● Experience with test-driven development
● Experience in developing web applications and REST APIs
● Good knowledge of *nix based OS
● Experience with K8s and building scalable multipod APIs
● Experience with next stack: JPA, Hibernate, AMQP(RabbitMQ/Kafka), SQL and noSQL databases, Feign, REST template, web sockets, OAuth2.0, JWT, Lombok, ElasticSearch AI / Data Experience (Preferred)
● Experience integrating external AI services (e.g., OpenAI, Anthropic, or similar) via APIs
● Understanding of prompt design and limitations of LLM-based systems
● Experience building or integrating RAG pipelines (vector search, embeddings, retrieval systems)
● Familiarity with data pipelines and preprocessing for AI-driven features
● Understanding of failure modes in AI systems and how to design around them
● Experience implementing guardrails, validation, and fallback mechanisms
Nice to Have
● Experience designing AI systems in regulated environments (compliance, auditability, traceability)
● Understanding of system-level AI architecture (separation of orchestration, business logic, and model layer)
● Experience with monitoring and cost control for AI workloads

We’re looking for a Senior Java Engineer with Python&Golang skills to join our team. 

About Us:

Our client  is defining the future of cybersecurity through our XDR platform that automatically prevents, detects, and responds to threats in real time. Singularity XDR ingests data and leverages our patented AI models to deliver autonomous protection. With the Client, organizations gain full transparency into everything happening across the network at machine speed – to defeat every attack at every stage of the threat lifecycle.

We are a values-driven team where names are known, results are rewarded, and friendships are formed. Trust, accountability, relentlessness, ingenuity, and define the pillars of our collaborative and unified global culture. We're looking for people that will drive team success and collaboration across a team. If you’re enthusiastic about innovative approaches to problem-solving, we would love to speak with you about joining our team!

About the team & role:

Our team is responsible for the backend part for the main product line - securing tens of millions of devices across the globe of all kinds of OS (Windows, Linux, macOS), and processing billions of security events every day.

• We are building services (e.g. gateways, caching, threat data ingestion etc) that process traffic & serve for two-way interaction between client's Agents on the protected devices and our cloud-based Management console (a large-scale distributed system, with a client facing, data-heavy & complex web application)
• We also enable features in this console that allow tens of thousands of users on IT security teams of our clients to manage our security SW deployed on endpoints in client's environments (e.g. investigating threats & notifications from protected devices; creating blocklists, exclusions, policies etc.).

You'll be joining a team with a significant impact on how our customers' environments (incl. 4 or Fortune10 companies, hundreds of Global2000 or governments) are protected, how they interact with agents, gain visibility into their security posture, and understand the risks and act upon them. As a core team, we're heavily involved in every end-to-end effort, features development and are key contributors to the design and build of the right architecture of client's cybersecurity solution to match the scale & hyper-growth of our business.

What will you do?

• Design, develop and support backend system serving for endpoint security
• Help us with initiatives around moving our services to a new deployment model.
• Tuning and adjusting our services to work with new CPU architectures.
• Improving the observability for our services.

Responsibilities: 

• Cross-Team Collaboration: Work closely with product, validation, and front-end engineering teams to deliver and maintain high-quality features.
• Code Quality and Maintenance: Write clean, maintainable code. Stay up-to-date with the latest advancements in backend technologies and security best practices.
• Innovation and Creativity: Bring creativity to the table. Explore new solutions and technologies to improve our product continuously.

Requirements: 

• 7+ years of extensive software engineering experience, including proven expertise in developing large-scale distributed systems and microservices architecture, with a focus on performance, scalability and reliability
• Proficiency in Java and Python 
• Experience with Golang is a plus
• Experience with cloud platforms (AWS and/or GCP) and Kubernetes (must)
• Experience with Kafka or similar solutions is a plus
• Excellent problem-solving skills
• Strong communication skills and ability to articulate technical concepts and influence engineering direction across teams, departments and stakeholders

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Our client is a leading U.S. fashion retailer, offering apparel, footwear, beauty, and home goods. It operates 350+ stores and robust online platforms, combining in-store and digital experiences.

We’re looking for a backend-focused Software Engineer (70% Backend / 30% Frontend) to join a high-impact team.

In this role, you’ll help design, build, and maintain scalable systems that power seamless digital customer experiences. You’ll work closely with cross-functional teams to deliver reliable, high-quality solutions while continuously improving engineering practices.

Responsibilities

• Design, build, and maintain backend services (REST APIs, event-driven systems, databases, cloud infrastructure)
• Collaborate with engineers, product managers, and partner teams in an agile environment
• Write clean, maintainable, and well-tested code following best practices
• Contribute to system design and technical decision-making
• Support and enhance full-stack features when needed (primarily backend-focused)
• Participate in code reviews and help improve overall code quality
• Troubleshoot performance issues and optimize system reliability
• Contribute to monitoring, logging, and observability (metrics, dashboards, alerts)
• Ensure solutions meet security and quality standards

Skills Required

• Strong backend development experience (REST APIs, microservices, event-driven architecture)
• Solid understanding of software engineering fundamentals (OOP, design patterns, data modeling, algorithms)
• Experience with at least one backend language (e.g., Go, Java, .NET)
• Familiarity with cloud platforms (AWS or similar) and modern infrastructure
• Basic frontend experience (JavaScript, React/TypeScript)
• Experience with CI/CD, testing, and modern development workflows
• Familiarity with Docker/Kubernetes and monitoring tools is a plus
• Strong communication skills and ability to work in collaborative teams