Senior Java Engineer

🏢 Summary: Full-time Senior Software Engineer role focused on backend development and system integrations for a large-scale job platform. The position involves API integrations, client and partner migrations, and backend services supporting UI applications, with overlap until 19:00–20:00 CET. The role emphasizes independent work on platform transitions and distributed systems. 🗂️ Requirements: Strong Java backend development experience, Experience building and integrating APIs, Experience with Kafka or other messaging/event streaming systems, Experience with MySQL or other relational databases, Experience with NoSQL databases (e.g., DynamoDB), Experience with system integrations or platform migrations, Ability to develop backend services supporting UI applications, Ability to work independently and proactively 📃 Skills: Java, Kafka, MySQL, DynamoDB, SQL, NoSQL, APIs, AWS 🏢 Description: Svitla Systems Inc. is looking for a Senior Software Engineer for a full-time position (40 hours per week) in Europe. Our client is one of the world’s largest and fastest-growing job sites. Overlap till 19:00 - 20:00 CET. Requirements Strong Java backend development experience. Experience building and integrating APIs. Experience with Kafka or other messaging/event streaming systems. Experience with MySQL or other relational databases. Experience working with NoSQL databases (e.g., DynamoDB). Experience working on system integrations or platform migrations. Ability to work on backend services that support UI applications. Work independently, take proactive steps, not just execute on steps. Nice to have Experience with AWS (especially DynamoDB or cloud-native services). Some AI tools experience - Optional, not required. Responsibilities Client and partner migrations, codebase transitions, and integrating systems through API calls. Perform client-side migrations, including: Updating API calls (old → new system), working across multiple client codebases, supporting pipeline / ramp issues. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Java Engineer role in a hybrid model (3 days/week in Kraków) focused on designing and delivering microservices-based solutions in a large-scale retail environment. The position involves leading technical strategy, implementing high-quality Java 21 and Spring Boot solutions in Azure cloud, and collaborating across teams in an Agile setup with on-call rotation. 🗂️ Requirements: 6+ years of experience in JVM ecosystem, Strong knowledge of Java and Spring Boot, Experience with microservices architecture, Experience with Azure and Kubernetes (AKS), Experience with PostgreSQL, Experience with CI/CD pipelines, Knowledge of Terraform, Experience with event-driven architecture, Fluent English, Availability to work hybrid (3 days/week in Kraków office), Willingness to participate in on-call rotation 📃 Skills: Java, Spring, Azure, AKS, Kubernetes, Terraform, Microservices, DDD, EventSourcing, PostgreSQL, GitHub, GitHubActions, ArgoCD, Splunk, Spock, JIRA, Zendesk, Miro 🏢 Description: Svitla Systems Inc. is looking for a Senior Java Engineer for a full-time position (40 hours per week) in Poland (Kraków and its immediate surroundings). Our client is one of the world's largest food retailers, operating thousands of stores across the United Kingdom, Ireland, and Europe. The hybrid mode of work includes 3 days/week at the Krakow office (this is essential as the role involves working with other team members). On-Call duties (rotating shifts). Tech Stack: Languages: Java 21; Frameworks: Spring Boot; Cloud: Azure (AKS/Kubernetes), Terraform; Architecture: Microservices, DDD, Event Sourcing; DB: PostgreSQL; CI/CD: GitHub Actions + ArgoCD; Monitoring & alerting: Splunk; Testing: Spock; VCS: GitHub; Others include Zendesk, JIRA, and Miro. Requirements: 6+ years of experience as a Software Engineer within the JVM ecosystem. Strong understanding of language & framework, and a good working knowledge of the abstraction layer underneath The ability to showcase exemplary behaviour in your work – your design, delivery, code, processes all sets examples for your team. Fluent communication skills in English. Responsibilities: Work in an Agile environment. Take a business problem and develop a technical strategy within the team, along with a high-level design, and lead the implementation. Work under minimal directions or guidance and collaborate with SDEs across teams working on the same or similar business problems. Influence your team’s technical and business strategy by suggesting novel approaches. Proactively mentor the rest of the team and help with hiring. Communicate your ideas and get feedback from different stakeholders. Drive convergence to achieve the proper outcomes. Ensure that design or architectural deficiencies are addressed, and routinely simplify the integration of your peer teams' software with your team’s software. Consistently lead the delivery of valuable features. Continually propose and drive process improvements. Help elaborate on requirements where necessary. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in the workspace, either remote or in our welcoming office. Comprehensive medical insurance after one month. MultiSport card with access to 2500 sports facilities all over Poland Bonuses for recommendations of new employees. Bonuses for article writing, public talks, and other activities. 15 vacation days, 10 national holidays, 10 sick leaves, and family days off. Personalized learning program tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Welcome and anniversary presents, gifts for children, and more. Regular corporate events and meetups. Awesome team, friendly and supportive community!

🏢 Summary: Full-time Senior Full Stack Software Engineer role focused on building and scaling backend systems for a large job marketplace platform. The position centers on developing and maintaining services that ingest and process job data from external sources while supporting automation and AI-driven initiatives. The role combines backend-heavy development with light frontend maintenance in a distributed EMEA-based setup. 🗂️ Requirements: Strong experience in Java backend development, Proficiency with Spring Boot for scalable services and microservices, Experience designing and developing REST APIs, Familiarity with gRPC communication, Experience with messaging systems such as Kafka or RabbitMQ, Advanced knowledge of MySQL, Experience with MongoDB, Experience building scalable backend systems, Ability to contribute to system design, Basic knowledge of React, Basic knowledge of JavaScript or TypeScript 📃 Skills: Java, Spring, SpringBoot, REST, gRPC, Kafka, RabbitMQ, MySQL, MongoDB, React, JavaScript, TypeScript, GraphQL, AI, Automation, Caching 🏢 Description: Svitla Systems Inc. is looking for a Senior Full Stack Software Engineer for a full-time position (40 hours per week) in Europe. Our client is one of the world’s largest and fastest-growing job sites. Project Overview: Marketplace Engineering, specifically within the Employer Jobs Platform (EJYPT), leads the Aggregation Teams responsible for collecting and ingesting indexed job data from various external sources, including XML feeds, scraped job sites, and the job sync API used by third-party partners. The core mission of this group is to increase both the number and coverage of jobs available on the site by continuously improving how jobs are discovered, ingested, and maintained across these external sources. Timezone Coverage: EMEA hours, as long as you can attend meetings up to 11 am CDT. Requirements: Strong experience in Java backend development. Knowledge of Spring Boot for building scalable backend services and microservices. Understanding of REST API design and development; familiarity with gRPC communication. Understanding of messaging systems such as Apache Kafka or RabbitMQ . Advanced knowledge of databases with MySQL (primary) and MongoDB . Experience building backend systems at scale and contributing to system design. 1+ years of experience working with React and JavaScript/TypeScript for maintaining existing frontend components. Nice to have: Exposure to GraphQL (light usage). Experience with AI or automation workflows . Familiarity with caching technologies such as Valky or similar caching solutions. Responsibilities: Maintain existing backend systems. Build new features. Support automation initiatives (AI-driven extraction/config). Potentially develop tooling for AI prompts/models. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Full Stack Engineer role focused on building and maintaining scalable backend services with .NET and Java/Kotlin, and contributing to frontend development with Angular. The position involves designing secure APIs, driving UI architecture, and working within Agile teams to deliver commercial software products. Approximately 20–30% of the role is dedicated to frontend development. 🗂️ Requirements: 5+ years of commercial software development experience, Strong experience with .NET (C#) backend development, Strong experience with Java or Kotlin backend development, Hands-on experience with Kotlin in backend environments, Knowledge of Angular and TypeScript, Experience designing and working with RESTful APIs and SOAP APIs, Understanding of backend architecture, performance, security, scalability, Knowledge of Azure Cloud and application deployment, Familiarity with Azure DevOps and CI/CD processes, Experience with modern web development practices, Experience working in Agile/Scrum environments, Bachelor’s degree in Computer Science or equivalent experience, Strong English communication skills 📃 Skills: .NET, C#, Java, Kotlin, Angular, TypeScript, REST, SOAP, Azure, AzureDevOps, CI/CD 🏢 Description: Svitla Systems Inc. is looking for a Senior Full Stack Engineer with .NET, Java, and Angular for a full-time position (40 hours per week) in Europe. Our client is a leading global provider that gathers information and reports to enhance the environmental and social impacts on the business. A Senior Engineer must have strong backend expertise in .NET and Java/Kotlin, as well as frontend experience in Angular. Requirements: 5+ years of commercial experience in software development. Strong experience with .NET (C#) and Java/Kotlin backend development. Hands-on experience with Kotlin in backend environments. Knowledge of Angular and TypeScript. Understanding of designing and working with RESTful APIs and SOAP APIs. Solid understanding of backend architecture, including performance, security, and scalability. Knowledge of Azure Cloud, including deployment and scaling of applications. Familiarity with Azure DevOps and CI/CD processes. Strong understanding of modern web development practices. Experience working in Agile/Scrum environments. Strong communication skills in English. Bachelor’s degree in Computer Science or equivalent experience. Responsibilities: Work within an Agile team to design, estimate, develop, test, and deliver commercial software products. Develop and maintain backend services using .NET and Java/Kotlin. Design and implement secure, scalable RESTful APIs and services. Contribute to frontend development using Angular and TypeScript (~20–30%). Drive UI architecture and develop reusable UI components. Ensure best practices and design guidelines for UI and backend development. Write clean, maintainable, and efficient code for both client-side and server-side applications. Develop unit and integration tests; collaborate with QA to resolve issues. Collaborate with Product Owners and stakeholders to refine requirements and user stories. Contribute to project estimation, planning, timelines, and status updates. Provide technical guidance and mentorship where needed. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Java Developer role for a long-term media industry project, focused on backend development, microservices architecture, cloud technologies, and DevOps practices. The position offers flexible remote or hybrid work in Poland and involves development, code reviews, technical consulting, and documentation within a Scrum team. 🗂️ Requirements: 4+ years of Java 8–25 development experience, Knowledge of design patterns, multithreading, and immutability, Experience with Spring Boot, Spring MVC, WebFlux, MyBatis, and TestContainers, Experience with SQL and NoSQL databases, Knowledge of microservices, REST, Kubernetes, Docker, SOA, and SSO, Experience with JUnit, Mockito, Spock, JMeter, and K6, Experience with Git, Jenkins, GitLab CI, and GitLab Pipelines, Understanding of OWASP and web application security principles, Experience working in Scrum teams, Knowledge of Unix/Linux systems, Experience with Python and Bash scripting, Understanding of AWS services including IAM, EC2, S3, Lambda, API Gateway, CloudWatch, and MSK, Experience creating technical and user documentation, Knowledge of DevOps practices and automation tools, Advanced English communication skills 📃 Skills: Java, Spring, SpringBoot, SpringMVC, WebFlux, MyBatis, TestContainers, Oracle, PostgreSQL, MongoDB, Redis, Kafka, ORM, Microservices, REST, Kubernetes, Docker, SOA, SSO, Okta, CAS, IAM, JUnit, Mockito, Spock, JMeter, K6, Git, Bitbucket, GitLab, Jenkins, CI/CD, OWASP, Scrum, Confluence, Jira, Linux, Unix, Python, Bash, AWS, EC2, S3, Lambda, APIGateway, CloudWatch, MSK, HTML, CSS, JavaScript, Angular, React, Vue.js 🏢 Description: Svitla Systems Inc. is looking for a Senior Java Developer for a full-time position (40 hours per week) in Poland. Our client is a French-based international group of media companies. It is a long-term project. There are optional night-time deployment sessions every other Wednesday at 10:00 PM. Our working hours are 8 hours and 30 minutes from Monday to Thursday, and 6 hours on Fridays, with the option to work 8 hours from Monday to Friday. You can choose to work remotely or from the office. While remote work is welcome, attendance at the Warsaw office is encouraged 1 to 3 times a week. REQUIREMENTS Minimum of 4 years of development experience using Java 8–25. Strong knowledge of design patterns, multithreading and immutability. Knowledge of such frameworks as Spring (Spring Boot, Spring MVC, WebFlux), MyBatis, TestContainers. Experience with SQL and NoSQL (Oracle, PostgreSQL, MongoDB, Redis), Confluence, Kafka, and the ability to work with ORM (Object-Relational Mapping). Understanding of software architecture, including microservices, RESTful architecture, Kubernetes, Docker, SOA (Service-Oriented Architecture), and SSO (Okta, CAS, IAM). Experience with testing tools: Unit testing (JUnit, Mockito), integration and acceptance testing (Spock), support for performance testing (JMeter, K6). Familiarity with version control and CI/CD tools: Git (Bitbucket, GitLab), Jenkins, GitLab CI, and GitLab Pipelines. High degree of independence, accountability for results and attention to the quality of implementation. Understanding of the basic principles of web application security (e.g. OWASP). Ability to collaborate within a Scrum development team. Familiarity with Confluence and Jira. Knowledge of Unix/Linux systems. Knowledge of scripting languages in a Linux environment (Python, Bash). Understanding of AWS cloud services and technologies, including IAM, EC2, S3, Lambda, API Gateway, CloudWatch, and MSK. Expertise in creating technical and user documentation Knowledge of DevOps practices and automation tools. Analytical and problem-solving skills with the ability to analyze requirements and design solutions. High level of English for communication. NICE TO HAVE Knowledge of front-end tools and technologies HTML, CSS, JavaScript (frameworks such as Angular, React or Vue.js). RESPONSIBILITIES Deliver development work. Provide technical consultations (advising other individuals and departments). Perform code reviews and foster team development. Create documentation in Confluence, managing tasks using Jira. WE OFFER US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in the workspace, either remote or in our welcoming office. Comprehensive medical insurance after one month. MultiSport card with access to 2500 sports facilities all over Poland Bonuses for recommendations of new employees. Bonuses for article writing, public talks, and other activities. 15 vacation days, 10 national holidays, 10 sick leaves, and family days off. Personalized learning program tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Welcome and anniversary presents, gifts for children, and more. Regular corporate events and meetups. Awesome team, friendly and supportive community!

🏢 Summary: Full-time Middle/Senior Java Engineer role focused on designing and maintaining Java-based microservices for a large-scale retail environment. The position involves building cloud-based solutions using Spring Boot, Kubernetes, and Azure, with strong emphasis on CI/CD and database management. The engineer will work in an Agile team to deliver scalable, high-performance systems. 🗂️ Requirements: 4–5 years of professional experience with Java, Strong knowledge of Spring Boot and Spring WebFlux, Experience with microservice architectures, Experience with SQL databases, preferably PostgreSQL, Hands-on experience with Kubernetes and Helm, Experience implementing CI/CD pipelines, Knowledge of Azure platform, Experience with Agile methodologies (Scrum or Kanban), Experience with GitHub Actions or Azure DevOps 📃 Skills: Java, SpringBoot, WebFlux, Microservices, SQL, PostgreSQL, Kubernetes, Helm, CICD, GitHubActions, AzureDevOps, Azure, Scrum, Kanban, JIRA, Zendesk 🏢 Description: Svitla Systems Inc. is looking for a Middle/Senior Java Engineer for a full-time position (40 hours per week) in Poland. Our client is a British company that operates a chain of retail supermarkets. It is one of the largest grocery store chains in the world and the leading store in the United Kingdom, Ireland, Thailand, and Malaysia. The hybrid work model includes 3 days/week at the Krakow office (this is essential, as the role involves working with other team members). Requirements 4–5 years of professional experience delivering Java-based software solutions. Strong knowledge of Spring Boot and familiarity with frameworks like Spring WebFlux. Proven experience working with microservice architectures. Solid understanding of SQL databases, preferably PostgreSQL. Hands-on experience with Kubernetes and Helm for container orchestration and deployment. Experience implementing CI/CD pipelines using GitHub Actions, Azure DevOps, or similar tools. Knowledge of the Azure platform. Experience with Agile methodologies (Scrum or Kanban). Experience using collaboration and tracking tools like Zendesk and JIRA. Ability to write clean, maintainable, and well-documented code. Good verbal and written English communication skills. Nice to have Familiarity with ArgoCD and OpenText. Knowledge of AWS or Google Cloud platforms. Familiarity with monitoring and alerting tools such as Splunk, xMatters, or NewRelic (training will be provided). Responsibilities Design, develop, and maintain Java-based software solutions using modern frameworks such as Spring Boot and Spring WebFlux. Build and deploy microservice architectures to meet scalability and performance requirements. Develop, maintain, and optimize SQL-based databases (PostgreSQL). Deploy, manage, and monitor workloads in Kubernetes environments, utilizing Helm for package management. Implement CI/CD pipelines using GitHub Actions, Azure DevOps, and ArgoCD. Integrate with and leverage cloud platforms such as Azure, AWS, or Google Cloud Platform. Write clean, readable, and maintainable code following best practices and coding standards. Collaborate with cross-functional teams in an Agile environment (Scrum/Kanban). Utilize monitoring and alerting tools such as Splunk, xMatters, or NewRelic to ensure system reliability (training provided if needed). Participate in code reviews, sprint planning, and retrospectives. Work with tools such as Zendesk and JIRA for tracking and support purposes. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in the workspace, either remote or in our welcoming office. Comprehensive medical insurance after one month. MultiSport card with access to 2500 sports facilities all over Poland Bonuses for recommendations of new employees. Bonuses for article writing, public talks, and other activities. 15 vacation days, 10 national holidays, 10 sick leaves, and family days off. Personalized learning program tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Welcome and anniversary presents, gifts for children, and more. Regular corporate events and meetups. Awesome team, friendly and supportive community!

🏢 Summary: Full-time Senior Backend Developer role building a modern, large-scale enterprise platform for a global manufacturing customer. The position focuses on Node.js/TypeScript backend services, REST APIs, enterprise integrations, database design, and secure, scalable application delivery, with planned work through December 2026 and a possible extension to February 2027. 🗂️ Requirements: 7+ years of software development experience, 5+ years of Node.js backend development experience, TypeScript and JavaScript proficiency, RESTful API design and development knowledge, Enterprise-scale web application development experience, Software architecture and design patterns knowledge, Relational database experience, Secure coding and application security knowledge, Agile development experience, Advanced English, Availability for business trips to Basel, Switzerland 📃 Skills: Node.js, TypeScript, JavaScript, REST, PostgreSQL, SQL, Agile 🏢 Description: Senior Backend Developer (Node.js) Join the implementation of a large-scale enterprise web application for a global manufacturing customer. The project focuses on developing and implementing a modern enterprise platform that will replace an existing business application used across multiple countries. The backend solution will use modern technologies and integrate with various enterprise systems to support business-critical processes. The project's planned end date is December 18, 2026, with a possible extension to February 1, 2027. Requirements • 7+ years of experience in software development. • 5+ years of experience developing backend applications using Node.js. • Strong knowledge of TypeScript and JavaScript. • Understanding of designing and developing RESTful APIs. • Experience with enterprise-scale web application development. • In-depth understanding of software architecture principles and design patterns. • Knowledge of relational databases, including PostgreSQL, SQL Server, or similar. • Understanding of secure coding practices and application security principles. • Experience working in Agile software development environments. • Strong analytical and problem-solving skills. • Advanced English. • Availability for business trips to Basel, Switzerland, during key project phases: kick-off, end of Concept Phase, and Go-Live readiness review. Responsibilities • Develop scalable backend services using Node.js and TypeScript. • Implement RESTful APIs and backend business logic for enterprise web applications. • Collaborate with architects to define technical solutions and application architecture. • Participate in technical design sessions and solution discussions. • Integrate backend services with internal and third-party enterprise systems. • Design and optimize database structures, queries, and data models. • Ensure application performance, scalability, reliability, and security. • Write clean, maintainable, and well-tested code following engineering best practices. • Participate in code reviews. • Collaborate closely with Front End Developers, QA Engineers, Business Analysts, and DevOps Engineers. • Participate in Agile ceremonies, including sprint planning, daily stand-ups, reviews, and retrospectives. Benefits • Competitive compensation based on skills and experience. • Regular performance appraisals to support growth. • Flexible workspace: remote or office-based. • Bonuses for article writing, public talks, and other activities. • Generous time off, including vacation, national holidays, sick leave, and family days. • Personalized learning programs tailored to interests and skill development. • Free tech webinars and meetups. • Regular corporate online activities. • Friendly, supportive team community.

🏢 Summary: Full-time Senior QA Engineer role focused primarily on manual testing of a React Native mobile application integrated with hardware devices. The position involves validating mobile features, hardware data processing, and CI/CD pipelines while collaborating with development and hardware teams. Limited automation tasks may be required, mainly maintaining existing E2E tests. 🗂️ Requirements: 4+ years of manual testing experience, Strong experience in manual mobile application testing, Understanding of API-based systems and data flows, Basic knowledge of Bluetooth and MQTT from testing perspective, Experience testing on real devices, Ability to read and analyze CI/CD build logs, Experience with regression testing, Ability to maintain E2E tests, Professional English proficiency 📃 Skills: ManualTesting, MobileTesting, ReactNative, iOS, Android, API, Bluetooth, MQTT, CI/CD, Bitrise, Detox, TypeScript, JavaScript, macOS 🏢 Description: Svitla Systems Inc. is looking for a Senior QA Engineer for a full-time position (40 hours per week) in Europe. Our client is a company that creates interactive games, quizzes, and adventures specifically designed for children. We're looking for a tester who's comfortable focusing on mostly manual testing for now, with limited automated testing possible (there is no environment to support it yet). Requirements: 4+ years of experience in manual testing (AQA experience is a plus). Experience in small to medium companies preferred, not in startups. Strong understanding of manual mobile application testing. Understanding of API-based systems and data flows (polling, backend interactions). Basic understanding of Bluetooth and MQTT from a testing perspective. Experience working with real devices. Expertise in reading and understanding CI/CD build logs. Excellent written and spoken English. Excellent communication skills and initiative to report product/feature/software issues immediately. Ability to self-structure your work in an ambiguous environment. Sharp attention to detail and solid communication skills. Curiosity and comfort digging into unfamiliar parts of the product. Nice to have: Basic knowledge of TypeScript/JavaScript. Basic understanding of APIs or testing automation concepts. Experience triggering builds and running tests locally on macOS. Previous experience testing products with hardware integration. Responsibilities: Perform manual testing of a React Native mobile application (iOS / Android). Validate user-facing insights generated from hardware data and displayed in the app after processing. Use a real hardware device (Bluetooth box) to generate test data for QA purposes. Execute regression testing and verify new features before release. Analyze CI/CD pipeline failures in Bitrise and review build/test logs. Collaborate closely with developers and a separate hardware-focused team. Maintain and adjust existing E2E tests (Detox) when minor issues are identified. Work independently, organize your own testing focus, and adapt as requirements evolve. Verify fixes and keep track of riskier areas. Mostly manually test the company’s music box features and functions. Spot, reproduce, and clearly describe bugs. Occasionally prepare automated testing scenarios (rarely). We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, other activities Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Full Stack Engineer role building and scaling a high-throughput cloud platform for call tracking, marketing attribution, real-time analysis, and AI-driven workflows. The position involves hands-on development across backend and frontend systems, contributing to architecture, integrations, and production stability in a fast-moving startup environment. The engineer will work closely with founders to deliver scalable, reliable features with strong ownership and minimal oversight. 🗂️ Requirements: Senior-level full stack engineering experience in production environments, Strong backend development experience with Node.js, Strong frontend development experience with React or similar frameworks, Experience designing and maintaining complex web applications and APIs, Experience with relational databases and production data models, Knowledge of PostgreSQL or similar relational databases, Understanding of REST APIs and distributed system design, Experience integrating third-party APIs and external systems, Ability to debug and troubleshoot production systems, Experience balancing scalability, performance, and maintainability 📃 Skills: Node.js, React, JavaScript, PostgreSQL, SQL, REST, APIs, Redis, Python, HTML, CSS, Git, Cloud, AI 🏢 Description: Svitla Systems Inc. is looking for a Senior Full Stack Engineer for a full-time position (40 hours per week) in Europe. Our client is building an advanced cloud platform for call tracking, marketing attribution, real-time call analysis, and intelligent workflow automation in the pay-per-call and lead generation space. The company is in a hypergrowth phase and is actively scaling both its product platform and engineering capability. The platform combines high-throughput infrastructure, deterministic backend systems, real-time integrations, and AI-driven functionality to support transcription, summarization, extraction, scoring, and increasingly sophisticated agent-enabled workflows. You'll operate with a high degree of independence and make meaningful contributions across both backend and frontend systems. It is a hands-on senior engineering role for someone comfortable working directly with founders, shipping quickly, solving difficult production problems, and contributing to architectural and implementation decisions in a fast-moving startup environment. This role is best suited to an engineer with strong technical depth, sound judgment, product awareness, and the ability to move quickly without creating unnecessary technical debt. The right candidate will not need a heavy process, extensive oversight, or narrow task-by-task direction. This person should be able to step into an evolving system, understand the broader technical and business context, and deliver high-quality work in a practical, efficient way. The engineer will work closely with the founders and the rest of the engineering team, contributing directly to core product and platform development. The client has made it clear that they value engineers based on their performance in a real working environment, not on artificial interview exercises or theoretical problem-solving detached from production realities. Requirements: Strong experience as a Senior Full Stack Engineer, with clear ownership of both backend and frontend production systems. Solid experience in backend engineering with Node.js in real-world production environments. Expertise in frontend engineering with React or similar modern JavaScript frontend frameworks. Understanding of design, build, and maintain complex web applications and APIs that support meaningful business workflows. Strong experience working with relational databases, application data models, and production data access patterns. Knowledge of PostgreSQL or similar relational database technologies in production systems. In-depth understanding of REST APIs, asynchronous workflows, distributed integration patterns, and service-based application design. Experience integrating with third-party APIs and external systems in production environments. Ability to work effectively in evolving codebases and make good engineering decisions without requiring excessive structure or hand-holding. Expertise in debugging and troubleshooting across application logic, integrations, and production issues. Ability to balance delivery speed with long-term maintainability in a startup or high-growth environment. Nice to have: Experience working in startup or hypergrowth environments where engineers are expected to take ownership and move quickly. Familiarity with Redis, caching strategies, job processing, or event-driven application behavior. Exposure to Python and collaboration with AI or data-oriented systems. Experience building or supporting systems with high throughput, near-real-time workflows, or operationally sensitive business logic. Background in AdTech, MarTech, call tracking, attribution platforms, lead generation systems, or analytics-heavy products. Experience building internal operational tooling and admin workflows for technical or business users. Exposure to cloud-native environments and scalable distributed systems. Experience collaborating closely with technical founders, product leadership, or senior engineering stakeholders. Responsibilities: Design, build, and maintain production-grade application features across both backend and frontend systems, with strong attention to scalability, performance, reliability, and maintainability. Develop backend services and APIs using Node.js to support platform capabilities such as workflow orchestration, system integrations, feature logic, internal tooling, and real-time operational processing. Build and enhance frontend applications using React or similar modern frontend technologies to support dashboards, management interfaces, internal tools, and user-facing platform capabilities. Take ownership of significant technical areas and deliver solutions with minimal day-to-day oversight, while collaborating closely with founders and other senior engineers. Work on systems that support high-volume workflows, external integrations, and operationally important product capabilities where responsiveness and reliability matter. Implement and maintain integrations with external partner platforms, APIs, and data-driven systems, including CRM platforms, call-tracking systems, and other third-party services that are central to the product ecosystem. Contribute to architectural discussions and technical decisions related to application structure, data flow, performance optimization, maintainability, and production stability. Investigate and resolve production bottlenecks, system issues, and integration challenges in a practical, efficient manner. Collaborate with AI and data engineering team members where needed to connect backend and frontend product capabilities with intelligent workflows such as transcription, data extraction, scoring, or analytics-driven features. Help establish sound engineering patterns and raise the quality bar as the team scales, including code quality, implementation discipline, and pragmatic technical decision-making. Participate in a fast-moving engineering culture where new features, experiments, and improvements are shipped continuously. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Full-Stack Engineer role focused on designing and building scalable, high-performance data-driven applications using C# and modern web technologies. The position involves end-to-end development in an Agile environment, including architecture, coding, testing, and optimization of web and API solutions. The role requires strong experience with secure coding practices, CI/CD, and AI tools within the SDLC. 🗂️ Requirements: BSc in Computer Science, STEM, or equivalent experience, 7+ years of experience building scalable, high-performance data-driven applications, Experience designing service-based or tiered web and mobile applications, Strong experience with C#, Experience with WCF or Web API, Experience with SQL Server, Experience using AI tools within the SDLC, Experience working in a CI/CD environment, Knowledge of secure coding practices aligned with OWASP, Experience working in Scrum or Kanban environments 📃 Skills: C#, WCF, WebAPI, SQLServer, AI, OWASP, Scrum, Kanban, CI/CD, REST 🏢 Description: Svitla Systems Inc. is looking for a Senior Full-Stack Engineer (C#/React) for a full-time position (40 hours per week) in Europe. Our client is a leading global provider that gathers information and reports to enhance the environmental and social impacts on the business. Responsibilities: Participate in the Agile software development (Scrum/Kanban) from concept design, to full-stack code and testing. Write concise code, clear, well-tested, well-documented and with quality that adhere to industry best practices. Optimize code for quality, performance, scalability, efficiencies and security; through testing, code scanning, refactoring and monitoring. Collaborate with product owners to define/refine requirements, break down into development tasks, estimate effort, and plan milestones & deliverables. Develop and maintain UI applications (web, mobile, etc.) and/or web APIs (RESTful & messaging-based). Identify opportunities for innovation, improvement of software architecture and cloud infrastructure; and/or offer new ideas. Advocate for simplicity, reliability, manageability, scalability, extensibility, reusability and performance. Be a proactive team member who contributes, collaborates and demonstrates positive behaviour. Provide development expertise to team members through education and review. Always open to new ideas and encourages innovative practices amongst peers. Makes sure to constantly address technical debt - escalating when it becomes a risk to quality or timely delivery of our software. Carries out root cause analysis on defects to ensure fixes are happening in the right way. Requirements: BSC in Computer Science, STEM (Science, Technology, Engineering, and Math), or equivalent work experience. 7+ years of experience designing and building scalable, high-performance data-driven software applications. Experience designing service-based and/or tiered web and mobile applications. Excellent experience with C#. Web Services (WCF/Web API), SQL Server. Experience with JavaScript, React, TypeScript, jQuery, HTML, CSS, and SASS is desired. Experience with cloud deployment models (Azure), pipelines, and CI/CD is desired. Experience utilizing AI tools within projects and to support aspects of the SDLC is essential. Understanding and adhering to secure coding practices that meet OWASP standards. Experience working in a continuous integration and deployment environment. Experience practicing Scrum/Kanban and the ability to adapt to Scrum values. Strong analytical and problem-solving skills. Works effectively and independently in a dynamic team environment. Proven time management, organizational, and follow-up skills to meet deadlines. Quality-oriented with a passion for customer satisfaction. Excellent interpersonal and communication skills. Demonstrated initiative to learn and experiment with new technologies and processes. Strong work ethic and professionalism. Nice to have: Experience with C++ What we offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community