Senior Java Engineer

🏢 Summary: Senior Full-Stack Engineer (Backend-Leaning) role focused on building and scaling secure B2B SaaS platforms within an Azure cloud environment. The position involves developing Java/Spring Boot backend services, Angular frontend applications, and integrating event-driven and search capabilities. You will work closely with architecture leadership to deliver scalable, high-quality features in a mature enterprise ecosystem. 🗂️ Requirements: 6+ years experience in building B2B SaaS or enterprise systems, Strong expertise in Java and Spring Boot, Experience building secure REST APIs, Solid experience with Angular, Hands-on experience with Azure cloud services, Experience with Docker and CI/CD pipelines, Experience with PostgreSQL and Elasticsearch, Experience with Apache Kafka, Ability to design scalable and resilient backend architectures 📃 Skills: Java, OpenJDK, SpringBoot, REST, Angular, Azure, Docker, CICD, PostgreSQL, Elasticsearch, Kafka, SonarQube, DockerCompose 🏢 Description: N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. We are seeking a highly skilled and motivated Senior Full-Stack Engineer (Backend-Leaning) with 6+ years of professional experience to join our growing core engineering team. In this role, you will be instrumental in designing, scaling, and maintaining our enterprise-grade financial SaaS platform. While you will work across the full stack, your core strength and primary focus will be on building robust, high-performance backend systems using Java and modern enterprise frameworks. Requirements & Qualifications: Experience: 6+ years of proven professional experience building robust B2B SaaS platforms or large-scale enterprise systems. Experience in the financial technology (FinTech) sector or building financial-grade systems is a strong plus. Core Backend Stack (Must-Have): Strong expertise in Java, Spring Boot, Axon Framework, PostgreSQL, Elasticsearch, and Apache Kafka. Testing Requirement (Must-Have): Proficiency in Groovy. Backend test coverage via Groovy is a mandatory part of the development process. Frontend Stack (Must-Have): Solid experience with Angular and TypeScript for building modern web applications. Infrastructure & DevOps (Must-Have): Hands-on experience with Docker Compose and Gradle. Nice-to-Haves: Working experience with Keycloak, SonarQube, OpenAPI/Swagger, SendGrid, and Playwright is a plus. Key Responsibilities: Design, develop, and maintain secure, scalable, and resilient backend services using Java (OpenJDK), Spring Boot and Axon Framework. Architect and optimize relational databases (PostgreSQL) and structured search solutions using Elasticsearch. Develop responsive and clean user interfaces using Angular and TypeScript, ensuring seamless integration with backend REST APIs. Implement event-driven patterns and messaging queues using Apache Kafka to ensure high-throughput communication. Write and maintain comprehensive backend test coverage using Groovy. This is a strict, mandatory part of our development lifecycle. Manage identity and access management solutions by leveraging Keycloak for financial-grade security and authentication. Maintain high code quality through rigorous testing, code reviews, and analysis via SonarQube. Containerize applications using Docker and Docker Compose, and manage CI/CD deployment pipelines within the Azure Cloud ecosystem. Collaborate closely with cross-functional teams to define OpenAPI/Swagger specifications and integrate third-party services like SendGrid.

🏢 Summary: Lead FullStack Engineer role focused on building and scaling high-traffic, public-facing web platforms for a major European online marketplace. The position involves full SDLC ownership, AI-assisted development, and delivering highly available, performance-optimized solutions using modern cloud and frontend technologies. Work includes backend and frontend development, cloud infrastructure, CI/CD, and integration of AI frameworks into the development workflow. 🗂️ Requirements: 5+ years of experience building reliable, scalable software systems, Strong knowledge of software architecture and design patterns, Proficiency in C# and TypeScript, Strong experience with SQL and NoSQL databases, Strong frontend development experience (HTML, CSS, JavaScript), Experience with React, Next.js, Vue.js or Angular, Experience with AI tools (ChatGPT, Codex) in development workflows, Experience with AI frameworks (Vercel AI SDK, LangChain), Experience with AWS, Terraform, Docker, Experience building and consuming APIs in service-based architectures, Experience with CI/CD pipelines, Experience with logging and monitoring tools (Datadog, NewRelic), Strong unit testing skills (backend and frontend), Experience with Git, Upper-intermediate English, Availability to work in required time zone (ET or 13:00–21:00 EET) 📃 Skills: C#, TypeScript, SQL, NoSQL, GraphQL, Redis, HTML, CSS, JavaScript, React, Next.js, Vue.js, Angular, ChatGPT, Codex, LangChain, Vercel, AWS, Terraform, Docker, Git, CI/CD, Datadog, NewRelic 🏢 Description: Аbout us: N-iX i s a software development service company that helps businesses across the globe develop successful software products. Founded in 2002 in Lviv, N-iX has come a long way and increased its presence in eight countries Poland, Ukraine, Sweden, Bulgaria, Malta, the UK, the US, and Colombia. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies. About the client: Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Developing fast, high-traffic public-facing websites Explore new technologies and help the team to use them Work using AI tools and apply them to the SDLC Following software development best practices while delivering the work Following testing principles while testing your own code to ensure production readiness Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) Requirements: 5+ years developing reliable, highly available, and scalable software systems Strong understanding of software architecture and design patterns Firm grasp of clean code principles and coding standards Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development Experience integrating AI tooling into your development environment for streamlined usage Experience with AI Frameworks like Vercel AI SDK, LangChain, etc. Strong proficiency with the following technologies: C#+Typescript Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis) Strong proficiency with frontend development (HTML, CSS, JavaScript) Strong proficiency with component-based frameworks and SSR (Next.js/React or Vue.js) or Angular with the desire to learn React/ Vue.js. Hands-on experience developing and maintaining 3rd party content management systems Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker Experience with APIs and developing in a service-based application environment Experience building optimized UIs for performance Proficiency with version control systems such as Git Experience working within a formal CI/CD pipeline Experience with logging, monitoring, and alerting services like Datadog, Newrelic Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend At least Upper-intermediate English level This role requires mandatory timezone coverage: work must align with the Toronto (ET) timezone for LATAM hours and 13:00–21:00 EET for EU hours approximately. 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

🏢 Summary: Senior Scala + Java Engineer role focused on designing and building scalable, event-driven backend systems for a large European online marketplace. The position involves working with functional programming principles, distributed systems, and cloud infrastructure to enhance performance and reliability. You will contribute to architectural decisions and improve CI/CD, observability, and system resilience. 🗂️ Requirements: 4+ years of backend development experience in Scala and Java, Strong commercial experience with Scala, Experience with Spring Boot, Experience with AWS or other cloud platforms, Experience with event-driven architectures, Hands-on experience with Typelevel ecosystem, Knowledge of Cats Effect, Strong understanding of functional programming, Experience building distributed systems, Strong knowledge of concurrency and asynchronous programming, Upper-intermediate English level 📃 Skills: Scala, Java, Spring, AWS, Kafka, Cats, Typelevel, CI/CD, Concurrency, DistributedSystems, FunctionalProgramming 🏢 Description: About us: N-iX is a software development service company that helps businesses across the globe develop successful software products. Founded in 2002 in Lviv, N-iX has come a long way and increased its presence in eight countries Poland, Ukraine, Sweden, Bulgaria, Malta, the UK, the US, and Colombia. Today, we are a strong community of 2,000+ professionals and a reliable partner for global industry leaders and Fortune 500 companies. About the client: Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Scala + Java Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities Design and implement scalable backend services in Scala and Java Model complex business domains using strong type systems Build and maintain event-driven and distributed systems Contribute to architectural decisions around concurrency, streaming, and data consistency Write clean, testable, and maintainable code Improve CI/CD pipelines, observability, and system reliability Collaborate closely with product and platform teams Required Experience 4+ years of backend development experience in Scala and Java (main focus on Scala) Java Spring Boot experience Experience with Clouds, AWS preferably Familiarity with event-driven architectures (Kafka ) Hands-on experience with the Typelevel ecosystem Deep understanding of: Effect systems (Cats Effect); Functional programming principles; Type classes, higher-kinded types; Pure vs impure boundaries Experience building distributed systems Strong understanding of concurrency and asynchronous programming At least upper-intermediate English level Nice to Have Experience with Scala 3 Experience with PHP Knowledge of tagless-final patterns Experience in fintech or high-integrity domains Experience contributing to open source 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

🏢 Summary: The offer is for a Software Engineer to develop and maintain high-performance, cloud-native storage infrastructure and backend systems in Azure. The role covers full software development lifecycle responsibilities, including designing microservices, building APIs, and optimizing scalable distributed systems. The position involves working with C# and .NET technologies in a fast-paced environment, contributing to architectural decisions and mentoring other engineers. 🗂️ Requirements: 4+ years of software engineering experience in large-scale distributed systems, 4+ years of experience building resilient and highly available web services, Experience with architectural standards and technical design decisions, Experience in full-stack development, Degree in Computer Science (B.S., M.S., or PhD) or equivalent experience, Availability for shifted working hours with at least 4 hours overlap with PST time zone 📃 Skills: C#, .NET, ASP.NET, Azure, AKS, AzureAppServices, AzureBlobStorage, SQL, NoSQL, REST, gRPC, Microservices 🏢 Description: N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. Our Client is looking for a self-motivated Software Engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Our team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance, and durability, which enables customer derive intelligence and analytics through AI & BI. As a Software Engineer , you will own all aspects of the software development lifecycle, including design, development, testing, deployment, and maintenance of product features in the Client's software products. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices. Responsibility: Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL Databases to build scalable, secure, and reliable cloud-native solutions Build and maintain microservices-based architectures using C#, ASP.NET , and others Design and implement RESTful or gRPC APIs, ensure seamless integration with other systems and products Optimize architecture and solution for scalability and availability, with cost and maintenance in mind Identify and address performance bottlenecks and scalability challenges proactively Align across teams for designs, communicate, and resolve roadblocks Guide and mentor other engineers through design and code reviews Shifted working hours with at least 6 hours of daily overlap with the PST time zone (Pacific Standard Time) Requirements: 4+ years of software engineering experience in large-scale distributed systems 4+ years of experience building resilient and highly available web services Experience in understanding architectural standards and decisions Experience in full-stack development B.S., M.S., or PhD in Computer Science or equivalent experience

🏢 Summary: Technical Lead Full Stack Engineer (Java + React) role focused on leading the design and development of scalable, secure full-stack applications in the shipping domain. The position combines hands-on coding with architectural leadership, mentoring engineers, and driving engineering excellence using XP, TDD/BDD, and DevOps practices. The role covers end-to-end ownership from architecture and development to cloud deployment in a microservices environment. 🗂️ Requirements: BS in Computer Science or equivalent, 5+ years full-stack development experience, 5+ years experience with Java and Spring, 2+ years experience with React, Experience in technical leadership, Experience with Functional Programming and Java Streams, 2+ years experience with TDD/BDD, 2+ years experience with microservices architecture, Experience with Jenkins, Experience with cloud or hybrid cloud solutions, Experience with container-based environments, Knowledge of microservices design patterns, AI experience, English proficiency 📃 Skills: Java, Spring, SpringBoot, SpringCloud, React, JavaScript, ReactiveJS, Kotlin, JUnit, Jasmine, Mockito, Protractor, Selenium, Jenkins, Kubernetes, CloudFoundry, Microservices, TDD, BDD, DevOps, AI, Streams 🏢 Description: N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. We are looking for an experienced Technical Lead Full Stack Engineer (Java+React) to join and guide the development team. Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market. Responsibilities: Guide, mentor, and foster the growth of full-stack engineers within the team, championing engineering excellence and XP practices. Lead the architectural design and technical direction of innovative full-stack applications, ensuring scalability, security, and alignment with business goals. Establish and champion high standards of code quality, testing (TDD/BDD), CI/CD pipelines, and robust DevOps practices. Act as a key technical point of contact, collaborating closely with product owners and stakeholders to translate complex requirements into actionable technical strategies. Direct full-stack development of innovative applications, remaining actively involved in writing code and remote pairing. Own the entire development cycle, including design, architecture, development, testing, and DevOps deployment. Foster a highly collaborative Extreme Programming (XP) environment featuring remote pairing and rapid feedback loops. Requirements: BS degree in Computer Science or an equivalent combination of education and experience. Experience in technical leadership is a must. 5-6+ years of full-stack development experience. 5-6+ years of experience in the following technologies: Java, Spring . Proven experience with Functional Programming and Java Streams . 2+ years of experience in front-end development with React . Experience with developing a reactive UI ( Reactive JS ). 2+ years of experience in TDD/BDD development in the following frameworks: JUnit, Jasmine, Mockito, Protractor/Selenium . 2+ years of experience in microservices-based architecture and tools ( Spring Boot/Cloud ). AI experience Experience in DevOps development and Jenkins (must) . Experience in development in Kotlin – an advantage. Experience in designing, developing, and deploying cloud/hybrid-based solutions . Experience in developing and deploying in Container-based environments (Kubernetes, Cloud Foundry). Deep familiarity with the following design concepts: microservices, service discovery, circuit breakers . Strong leadership abilities with the capacity to appropriately prioritize, plan, and delegate complex work in a rapidly changing environment. Versatility and capability to switch easily between different tasks and technologies. Experience in assessing a broad range of information solutions and products. Strong critical thinker with an exceptional problem-solving aptitude. Excellent English skills - both verbal and written.

🏢 Summary: Senior .NET Fullstack Engineer role focused on building scalable backend services and modern dashboards for client and internal products. The position involves designing REST APIs, applying Clean Architecture and DDD, and optimizing database performance. The engineer will contribute to system design and performance improvements within a cloud-based environment. 🗂️ Requirements: 7+ years of experience with .NET, Strong knowledge of C#, 3+ years of experience with React, TypeScript, or Angular, Experience with ASP.NET and Web API, Experience with MSSQL and Entity Framework, Experience with unit testing using xUnit, Experience with Docker and Git, Experience with Azure and Azure DevOps, Experience optimizing SQL queries and stored procedures, Knowledge of Clean Architecture and Domain-Driven Design 📃 Skills: C#, .NET, ASP.NET, React, TypeScript, Angular, MSSQL, EntityFramework, xUnit, Git, Docker, Azure, AzureDevOps, WebAPI, SQL, DDD 🏢 Description: #5349 N-iX is a global software development company, empowering businesses worldwide with next-generation tech solutions. Since 2002, we have grown into a team of 2,400+ experts with offices in Kraków, Warsaw, and Wroclaw, and an active Polish community. We deliver high-impact projects for Fortune 500 clients and industry leaders, offering flexible work formats (remote, office, or hybrid) and lots of growth opportunities. Join us to create technology that drives real change for businesses and people across the world. N-iX is looking for a Senior .NET Fullstack Engineer to join the team working on the customer's product. You will join a functional team focused on building advanced tools, dashboards, and UIs for both external clients and internal users. The team's recent achievements include developing a new Client Dashboard and an Analyst Dashboard that enables the Operations team to efficiently track tasks and monitor their SLAs. Responsibilities: Design and develop scalable backend services using .NET. Apply Clean Architecture and DDD (Domain-Driven Design) principles. Build REST APIs and model domain logic. Optimize SQL/EF Core data access, SQL queries, and stored procedures. Ensure high code quality through testing and reviews. Identify and address performance bottlenecks in APIs and database queries. Contribute to system design and performance improvements. Requirements: 7+ years of experience with .NET and strong knowledge of C# fundamentals. 3+ years of experience with React, TypeScript, or Angular. Must-Have Tech Stack: C#, .NET 8/10, ASP.NET , MSSQL, Web API, Entity Framework, xUnit. Tools & Infrastructure: Git, Docker, Azure, Azure DevOps, API GW, Datadog. Ability to work with a high level of autonomy and take full ownership of tasks. Strong self-management skills in an environment with no micro-management. C1 English level (both written and spoken). Nice-to-Have Skills: Familiarity with event-driven architectures or messaging systems (e.g., Azure ServiceBus).

🏢 Summary: Senior Software Engineer, QA role focused on ensuring quality, reliability, and scalability of blockchain-based trading products through advanced test automation and robust QA processes. The position involves building and maintaining automation frameworks, validating web and mobile platforms, and integrating testing into CI/CD pipelines. It requires close collaboration with engineering and product teams in a fast-paced, regulated FinTech environment. 🗂️ Requirements: Bachelor’s or Master’s degree in Computer Science or related field, 6–8 years of manual and automated testing experience, Strong proficiency in Java and/or Python, Experience designing and maintaining test automation frameworks, Experience testing web and mobile applications (iOS, Android), Hands-on API and backend testing experience, Experience with performance and load testing, Knowledge of security testing fundamentals (OWASP), Experience integrating automated tests into CI/CD pipelines, Experience with SQL and NoSQL databases, Experience with message queues and asynchronous systems, Proficiency with Git and source control workflows, Experience in Agile/Scrum environments, Experience in FinTech or regulated environments, Knowledge of blockchain and Web3 concepts 📃 Skills: Java, Python, Selenium, Playwright, Cypress, Appium, XCUITest, Espresso, REST, Postman, pytest, JMeter, k6, Gatling, Locust, OWASP, Jenkins, GitHub, GitLab, CircleCI, Docker, Kubernetes, MySQL, PostgreSQL, Redis, MongoDB, Kafka, RabbitMQ, Git, JIRA, TestRail, Zephyr, Xray, Blockchain, Web3 🏢 Description: #5192 N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact. Company Overview Our client is a leading, fully regulated US-based digital asset trading platform. They provide secure, low-latency access to cryptocurrency markets, acting as a bridge between traditional finance and the Web3 ecosystem. About This Role The Senior Software Engineer, QA is part of the Engineering team and reports to our Manager, Engineering - Blockchain. As Senior Software Engineer, QA, you will be responsible for ensuring the quality, reliability, and scalability of our blockchain products through robust testing strategies, automation, and continuous improvement of our QA processes. As Senior Software Engineer, QA you will partner with software engineers and product managers, to deliver high-quality, secure, and performant products while improving the efficiency and effectiveness of our release lifecycle. EU (work late hours till 20:00) Key Responsibilities Executing and managing test cases and results, reporting on test and defect metrics. Focus on testing (automation and manual) of  mobile applications as long as web and BE. Estimating, prioritizing, planning and coordinating testing activities. Identifying, recording, documenting thoroughly and track bugs. Performing thorough regression testing when bugs are resolved. Designing, developing and executing automation scripts using internal automation framework and system. Developing and applying testing processes for new and existing products to meet client needs. Acting as a strong advocate for quality in the product development and engineering process including test tooling improvements and automation. Working with engineers to determine where the bottlenecks are in the existing release process. Staying up-to-date with new testing tools and test strategies. Required Qualifications Bachelor’s or Master’s degree in Computer Science or related field. ~8 years of hands-on manual and automated testing, or ~6 with an advanced degree. Experience working in Agile / Scrum environments with rapid iteration cycles and CI/CD-driven release processes. Proficiency in Typescript (preferable) or experience in Typescript and proficiency in Java or Python Experience with Maestro and Appium for mobile automation Hands-on experience designing, building, and maintaining test automation frameworks from the ground up — not just executing pre-built scripts. Proven experience testing across mobile (iOS / Android) and web platforms. Hands-on with UI automation tools such as Selenium, Playwright, Cypress, Appium, XCUITest, or Espresso. Strong API / backend testing experience — REST Assured, Postman, pytest + requests, or equivalent; including contract testing, mocking, and test data management. Experience with performance and load testing tools (JMeter, k6, Gatling, or Locust) — including defining KPIs, running tests, and analyzing results. Familiarity with security testing fundamentals (OWASP Top 10, XSS, CSRF, SQL injection, authentication / authorization flows). Experience integrating automated tests into CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI, or CircleCI). Familiarity with containerization (Docker) and orchestration (Kubernetes) for spinning up test environments. Hands-on with databases — both SQL (MySQL, PostgreSQL) and NoSQL (Redis, MongoDB) — for test data validation. Experience with message queues / streaming systems (Kafka, RabbitMQ) and validating asynchronous data flows. Proficiency with Git and modern source control workflows. Experience with test management and bug tracking tools (JIRA, TestRail, Zephyr, Xray, or equivalent) and clear bug reporting practices. Strong collaboration and communication skills, with proven ability to partner closely with developers, product managers, and DevOps engineers in a fast-paced cross-functional environment. Self-driven, problem-solving mindset — enjoys breaking things and finding the "why," not just the "what." Experience working in FinTech, banking, trading, or other highly regulated environments — with awareness of security and compliance best practices. Hands-on experience or strong demonstrable interest in blockchain, crypto, or Web3 products (this role reports into the Blockchain Engineering Manager). Familiarity with concepts such as wallets, transactions, gas, confirmations, smart contracts, testnets, and on-chain data validation tools (e.g., Etherscan, block explorers) is a strong plus.

🏢 Summary: Senior Backend Engineer role focused on building and improving a cloud-based security platform that enables large-scale forensic investigations and incident response across millions of endpoints. The position emphasizes backend development and infrastructure enhancements to increase system reliability and team velocity. You will implement backend features, integrations, and contribute to architectural decisions within a distributed environment. 🗂️ Requirements: 7+ years of backend development experience, Proficiency in Python, Experience with CI/CD systems, Experience with AWS or GCP, Experience with Terraform, Experience with relational databases, Strong understanding of backend architecture, Strong understanding of distributed systems, Upper Intermediate English level 📃 Skills: Python, AWS, GCP, Terraform, CI/CD, SQL, Java, Go, Kafka, Kubernetes, Docker 🏢 Description: N-iX is looking for a Senior Backend Engineer to join our team. Together with the client’s team, you’ll be building a next-generation cloud-based security platform as a backend engineer with strong infrastructure expertise. The team is working on products that enable security teams to orchestrate forensic investigations, run custom scripts at scale, and respond rapidly to cyber threats across millions of endpoints. The platform powers automated forensic evidence collection, customizable forensic profiles, and streamlined incident response workflows - all within a unified console alongside EDR data. This role focuses on improving infrastructure and backend systems to help the team ship faster and more reliably. Responsibilities : Drive developer experience initiatives that improve team velocity Implement backend features and integrations across multiple services Collaborate with the team on architectural decisions and code reviews Work independently while aligning with team priorities Requirements : 7+ years of backend development experience Proficiency in Python Experience with CI/CD systems, clouds (AWS/GCP) Experience with Terraform Experience with relational databases Experience with Java or Go is nice to have. Strong understanding of backend architecture and distributed systems Strong communication skills and ability to work in hybrid/remote teams Self-directed with the ability to drive initiatives independently At least Upper Intermediate English level Nice to have: Kafka and event-driven architectures E2E and integration testing strategies Kubernetes and container orchestration

🏢 Summary: Senior Backend Engineer role focused on building and improving a cloud-based security platform for large-scale forensic investigations and incident response. The position emphasizes backend development and infrastructure enhancements to enable scalable, reliable systems across millions of endpoints. You will collaborate on architecture and deliver backend features and integrations across distributed services. 🗂️ Requirements: 7+ years backend development experience, Proficiency in Python, Go, Java or similar language, Experience with CI/CD systems, Experience with AWS or GCP, Experience with Terraform, Experience with relational databases, Strong understanding of backend architecture, Strong understanding of distributed systems, Upper Intermediate English level 📃 Skills: Python, Go, Java, CI/CD, AWS, GCP, Terraform, SQL, Databases, DistributedSystems, Backend, Cloud 🏢 Description: N-iX is looking for a Senior Backend Engineer to join our team. Together with the client’s team, you’ll be building a next-generation cloud-based security platform as a backend engineer with strong infrastructure expertise. The team is working on products that enable security teams to orchestrate forensic investigations, run custom scripts at scale, and respond rapidly to cyber threats across millions of endpoints. The platform powers automated forensic evidence collection, customizable forensic profiles, and streamlined incident response workflows - all within a unified console alongside EDR data. This role focuses on improving infrastructure and backend systems to help the team ship faster and more reliably. Responsibilities : Drive developer experience initiatives that improve team velocity Implement backend features and integrations across multiple services Collaborate with the team on architectural decisions and code reviews Work independently while aligning with team priorities Requirements : 7+ years of backend development experience Proficiency in Python (preferably) , Go, Java, or any similar language Experience with CI/CD systems, clouds (AWS/GCP) Experience with Terraform Experience with relational databases Strong understanding of backend architecture and distributed systems Strong communication skills and ability to work in hybrid/remote teams Self-directed with the ability to drive initiatives independently At least Upper Intermediate English level Nice to have: Kafka and event-driven architectures E2E and integration testing strategies Kubernetes and container orchestration

🏢 Summary: Senior Software Engineer role focused on designing and developing a robust Kotlin-based framework for configuring and managing AI agents. The position involves building a scalable, high-performance platform using reactive and distributed system principles. The engineer will ensure code quality, optimize performance, and maintain technical documentation. 🗂️ Requirements: 5+ years experience with Kotlin or Java, Strong experience with Spring Framework, Experience with reactive programming (Project Reactor), Knowledge of REST, GraphQL, gRPC, Experience with distributed systems, Experience with tracing, metrics, monitoring practices, Experience building frameworks or platforms, Proficiency with Maven or similar build tools, Experience with NoSQL databases 📃 Skills: Kotlin, Java, Spring, Reactor, REST, GraphQL, gRPC, DistributedSystems, Maven, NoSQL, Tracing, Monitoring, Metrics 🏢 Description: N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software,IoT, and more to global industry leaders and Fortune 500 companies. Join us to create technology that drives real change for businesses and people across the world. We are looking for talented Senior Software Engineer to join our AI project in Europe. Responsibilities: Design and develop a robust and extensible Kotlin framework and platform for configuring and managing AI agents Write clean, maintainable, and efficient code that complies with our coding standards Ensure the performance, quality, and responsiveness of the framework/platform Identify and correct bottlenecks and errors Help to maintain code quality, organization, and automatization. Create and maintain technical documentation for the framework/platform Requirements: At least 5 years of proficiency in Kotlin or Java Deep experience with the Spring Framework Reactive tools experience (Project Reactor) Knowledge of different communication protocols such as REST, GraphQL, gRPC Experience with distributed systems Familiarity with tracing, metrics and monitoring best practices Experience of creating frameworks and platform for other developers Proficiency in Maven or similar tools Familiarity with NoSQL databases Very good spoken and written knowledge of English language (C1) Nice to have: Familiarity with GenAI, AI agents, machine learning, and natural language processing concepts is a plus Experience with MCP, A2A, RAG is a big plus Experience with event-driven architecture Experience with Docker and Kubernetes Python experience is nice to have BSc or MSc in Computer Science, Engineering or relevant field