Senior Full Stack (Python/Angular/React) Engineer

🏢 Summary: Full-time Senior/Staff Full-Stack Engineer role focused on building and leading the architecture of an AI-enabled operational monitoring platform in the cold-chain logistics domain. The position involves hands-on development with Python and Angular on AWS, designing scalable, event-driven, and serverless systems. The engineer will define technical standards, implement cloud-native solutions, and integrate IoT, analytics, and AI-driven capabilities. 🗂️ Requirements: Bachelor’s degree in Computer Science, Computer Engineering, or similar, 8+ years of full-stack software engineering experience, Strong proficiency in Python for backend and serverless development, Solid proficiency in Angular (v14+) and TypeScript, Experience with AWS Amplify for hosting and authentication, Experience designing and consuming GraphQL and REST APIs, Deep knowledge of AWS services (Lambda, API Gateway, DynamoDB, S3, Step Functions, CloudWatch, Secrets Manager), Experience with relational and NoSQL databases, Experience building event-driven systems with messaging/streaming services, Familiarity with caching systems, Knowledge of OAuth 2.0 and JWT-based authentication, Experience building backend and frontend test suites, Experience with Infrastructure as Code and containerization, Experience designing and implementing CI/CD pipelines, Working knowledge of HIPAA or HITRUST compliance 📃 Skills: Python, Angular, TypeScript, RxJS, AWS, Lambda, FastAPI, Amplify, AppSync, GraphQL, REST, API Gateway, DynamoDB, S3, StepFunctions, CloudWatch, SecretsManager, PostgreSQL, SQS, SNS, EventBridge, Kafka, Redis, ElastiCache, OAuth2, JWT, Cognito, pytest, Jasmine, Karma, Cypress, Playwright, Terraform, CloudFormation, CDK, Docker, GitHubActions, CodePipeline 🏢 Description: Svitla Systems Inc. is looking for a Senior/Staff Full-Stack Engineer(Python/Angular) for a full-time position (40 hours per week) in Europe . Our client is a global developer of technology platforms that develop temperature control products. You'll serve as the anchor engineer for a new AI-enabled operational monitoring and decision-support platform in the cold-chain shipping space. It is a senior, hands-on leadership role for a builder who can help shape the initial architecture, define engineering standards, and lead the technical implementation of a platform that integrates IoT telemetry, shipment workflow data, operational analytics, and future AI-driven capabilities. It's not a maintenance role, nor is it a narrowly defined feature factory position. This individual must be comfortable operating in an early-stage environment where requirements are evolving, business priorities are closely tied to real-world operational outcomes, and the engineering team must help translate business and logistics workflows into scalable software systems. The right candidate will be equally comfortable discussing architecture with technical stakeholders, refining platform direction with business leadership, building backend APIs, and guiding the structure of internal operational dashboards and exception-management tools. This role requires working hours with overlap till 7:00 PM-8:00 PM CET Requirements : Bachelor's degree in Computer Science, Computer Engineering, or similar 8+ years of software engineering experience with meaningful depth in both backend and frontend development. You should be strong in at least one side and comfortable contributing to the other. Strong proficiency in Python for backend and serverless development (Lambda, FastAPI, or similar). Experience with front end technologies (Angular and/or React) Commercial experience with high-load systems and scaling systems Hands-on experience with AWS Amplify for hosting, authentication, and connecting frontend applications to cloud services. Strong experience designing, building, and consuming both GraphQL APIs (AWS AppSync preferred) and RESTful APIs. Understanding of query optimization, subscriptions, versioning, and documentation (OpenAPI/Swagger). Deep knowledge of AWS services, including Lambda, API Gateway, DynamoDB, S3,Step Functions, CloudWatch, and Secrets Manager. Experience with relational and NoSQL databases (e.g., PostgreSQL, DynamoDB). Experience building event-driven systems using message queues and streaming services (SQS, SNS, EventBridge, Kafka). Familiarity with caching layers like Redis or ElastiCache. Solid understanding of security across the stack, including OAuth 2.0, JWT, API rat limiting, input validation, XSS prevention, CSRF protection, and secure token storage on the client side. Experience building test suites on both sides of the stack. Backend testing with pytest or similar, frontend testing with Jasmine, Karma, Cypress, Playwright, or similar. Experience with frontend performance profiling, Core Web Vitals optimization, and bundle analysis is a plus. Experience collaborating with stakeholders to build data pipelines, or integrate AI-driven features into production systems. Working knowledge of HIPAA or HITRUST compliance requirements for healthcare applications, including audit logging, PHI handling, data encryption, and secure session management. Comfortable with Infrastructure as Code (Terraform, CloudFormation, or CDK) and containerization (Docker). Experience with CI/CD pipeline design and implementation (GitHub Actions, AWS CodePipeline, Amplify CI/CD, or similar). Strong analytical and problem-solving skills with a focus on delivering polished user experiences backed by reliable infrastructure. Excellent communication skills and experience working in Agile environments. Responsibilities: Design, develop, and maintain fullstack applications, all deployed on AWS. Build and optimize serverless backend services using AWS Lambda, API Gateway, DynamoDB, S3, and Step Functions. Develop responsive, accessible frontend interfaces using Angular, with AWS Amplify for hosting, authentication (Cognito), and API integration. Design and integrate both GraphQL (AppSync) and RESTful APIs, handling everythin from backend implementation to frontend consumption, ensuring efficient data fetching, error handling, and state management. Architect data models, database schemas, and service-to-service communication patterns for complex business domains. Build and maintain event-driven architectures using SQS, SNS, EventBridge, o similar messaging services to support reliable, decoupled system communication. Implement caching strategies on both the backend (Redis, ElastiCache) and frontend (query caching, local state) to improve performance across the stack. Design and implement secure authentication and authorization flows using OAuth 2.0, JWT, and AWS Cognito, covering both server-side validation and client-side token management. Own features end-to-end, from database schema and API design through to the Angular components and user interactions that bring them to life. Collaborate closely with product managers, backend engineers, frontend engineers, and data science/ML teams to define system architecture, UI/UX requirements, and technical approach. Develop scalable, multi-tier cloud architectures with a focus on high availability and disaster recovery. Implement and maintain CI/CD pipelines for both frontend and backend deployments using tools like GitHub Actions, AWS CodePipeline, Amplify CI/CD, or similar. Build and maintain comprehensive test suites across the stack, including backend unit and integration tests (pytest) and frontend testing (Jasmine, Karma, Cypress, or Playwright). Establish and maintain structured logging, monitoring dashboards, error tracking, and alerting to support production reliability and fast incident response across both backend services and frontend applications. Participate in on-call rotations and lead incident response when production issues arise, including root cause analysis and follow-up improvements. Conduct code reviews and mentor junior engineers, fostering a culture of continuous learning and quality. Design and integrate AI-driven solutions within cloud infrastructure, working closely with stakeholders, build data pipelines, and create intuitive interfaces for AI-powered features. Implement cost optimization strategies and FinOps practices to manage cloud spending effectively. Stay current with emerging AWS services, Angular ecosystem updates, frontend tooling, and industry trends to continuously improve the technology stack. Document development processes, system architecture, component libraries, and key decisions for knowledge sharing. 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

🏢 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 Stack Architect role focused on building and optimizing data-intensive applications using React and .NET, with strong emphasis on AWS-based infrastructure and scalable architecture. The position involves designing, developing, and maintaining full-stack solutions, optimizing MySQL and Elasticsearch data layers, and managing containerized deployments with ECS and Kubernetes. The role requires hands-on architectural improvements, performance tuning, and end-to-end ownership from development to production deployment. 🗂️ Requirements: Bachelor’s degree in Computer Science or related field or equivalent experience, Minimum 5 years of experience in front-end and application development, Strong proficiency in JavaScript and React, Proficiency in .NET and Microsoft development tools, Strong experience with MySQL 8 including optimization and schema design, Hands-on experience with Elasticsearch, Deep understanding of AWS infrastructure and core services, Experience with ECS and Kubernetes for container orchestration, Experience with Docker, Expertise in responsive web design and cross-browser compatibility, Experience building data-intensive and scalable applications, Experience working in Agile environments 📃 Skills: JavaScript, React, .NET, MySQL, Elasticsearch, AWS, ECS, Kubernetes, Docker, VisualStudio, VSCode, HTML, CSS, Agile 🏢 Description: Svitla Systems Inc. is looking for a Full Stack Architect with React and .NET for a full-time position (40 hours per week) in Europe. Our client specializes in delivering digital forensic and incident response solutions tailored for businesses, public safety organizations, and service providers engaged in the investigation of cybercrimes. Requirements: Education: Associate/Bachelor's/Master's degree in Computer Science or a related field, or equivalent professional experience. Experience: Minimum of 5 years in front-end development, UI design, and application development. Tech Stack: Fluency in JavaScript and React . Proficiency in the Microsoft/.NET stack and development lifecycle tooling (Visual Studio / VS Code). Strong experience with MySQL 8 (optimization, schema design, and complex queries). Hands-on experience with Elasticsearch for full-text search and analytics. Infrastructure & DevOps: Deep understanding of AWS infrastructure and core services. Experience deploying and managing applications using ECS (Elastic Container Service) and K8S (Kubernetes) . Familiarity with Docker and container orchestration. Design & Standards: Expertise in responsive design for both mobile and desktop views. In-depth knowledge of cross-browser compatibility and modern web standards. Soft Skills & Methodology: Experience in Agile development methodologies. Ability to work independently and within cross-functional teams to produce high-quality deliverables. Proven track record of building data-intensive applications with a focus on performance and scalability. Responsibilities: Full-Stack Development: Develop and maintain complex full-stack applications, ensuring seamless integration between React front-ends and .NET back-ends. System Analysis: Analyze the current application stack, identifying bottlenecks in data-intensive workflows and recommending architectural improvements. Infrastructure Management: Implement and manage scalable solutions on AWS , leveraging ECS/K8S for container orchestration and ensuring high availability. Data Strategy: Architect and optimize data storage solutions using MySQL 8 and Elasticsearch to handle large-scale datasets efficiently. Introspection & Monitoring: Help implement tools to provide system introspection, logging, and performance monitoring across the distributed stack. Collaboration: Work closely with cross-functional teams to bring software solutions from initial concept to production deployment. Code Quality: Write clean, efficient, and well-documented code, adhering to industry best practices and internal coding standards. Innovation: Stay up-to-date with emerging technologies (particularly in the AWS and CNCF ecosystems) to suggest process enhancements and technical upgrades. Execution: Meet required schedules and release cycle timelines in a fast-paced environment. Adaptability: Rapidly learn and integrate new business models, concepts, and technologies into the existing ecosystem.

🏢 Summary: Full-time Senior Back End Engineer role with an AI/LLM focus, responsible for building scalable backend systems and leading the integration of AI capabilities into products and engineering workflows. The position combines hands-on backend development with designing MCP servers, RAG pipelines, and AI-driven automation. It requires driving advanced adoption of LLMs and AI tooling across the development lifecycle. 🗂️ Requirements: 5+ years backend or full-stack software engineering experience, Proficiency in at least one backend language: Python, Go, Node.js, TypeScript, or Java, Experience designing and building production REST or GraphQL APIs, Experience with distributed systems, Strong knowledge of relational databases such as PostgreSQL or MySQL, Experience with caching, queues, and event-driven architectures, Experience with AWS, GCP, or Azure, Experience with CI/CD, containerization, and infrastructure as code, Hands-on experience building or integrating MCP servers, Experience implementing RAG pipelines with embeddings and retrieval logic, Experience integrating LLM APIs in production environments, Experience building AI agents or agentic workflows, Experience with prompt engineering and LLM evaluation, Experience fine-tuning or customizing models, Experience automating testing, code review, or deployment using AI 📃 Skills: Python, Go, Node.js, TypeScript, Java, REST, GraphQL, PostgreSQL, MySQL, AWS, GCP, Azure, CI/CD, Docker, Kubernetes, MCP, RAG, LLM, OpenAI, Anthropic, LangChain, LangGraph, AutoGen, Pinecone, Weaviate, pgvector, Chroma 🏢 Description: Svitla Systems Inc. is looking for a Senior Back End Engineer with AI/LLM for a full-time position (40 hours per week) in Europe. Our client generates opportunities for innovation and enhances time and cost efficiencies for MVNOs, mobile operators, and businesses providing connectivity within the telecom ecosystem. You will not only deliver production-grade backend and full-stack systems, but also help lead the organization's adoption of progressive AI tooling and engineering practices. It is a hands-on engineering role with an AI-forward mandate: we want someone who pushes the team beyond passive AI use to build, integrate, and operationalize AI capabilities across our codebase, workflows, and products. Requirements 5+ years of experience in software engineering in backend or full-stack roles. Strong knowledge of at least one modern backend language (Python, Go, Node.js/TypeScript, Java, or similar). Experience designing and building production REST/GraphQL APIs and distributed systems. Extensive knowledge of databases (PostgreSQL, MySQL, or similar) and familiarity with caching, queues, and event-driven architectures. Knowledge of cloud environment (AWS, GCP, or Azure) and modern DevOps practices (CI/CD, containerization, infrastructure as code). Have experience not just using AI (as in using Claude, Cursor, and Codex), but also building an MCP server, understanding of the RAG and LLM, and LPM that can help automate the testing, etc. Strong written and verbal communication; able to mentor and influence peers. Hands-on experience with AI/LLM engineering, including at least several of the following: Building or integrating with MCP servers; Implementing RAG pipelines (embeddings, vector databases, retrieval logic); Working with LLM APIs (OpenAI, Anthropic, Google) in production; Building AI agents or agentic workflows (LangChain, LangGraph, AutoGen, or similar); Prompt engineering and LLM evaluation; Fine-tuning or model customization; Active, sophisticated use of AI coding assistants (Claude Code, Cursor, Codex, GitHub Copilot) - able to articulate workflows, limits, and best practices; Experience automating engineering processes (testing, code review, deployment) with AI. Nice to have Open-source contributions to AI/LLM tooling or the MCP ecosystem. Familiarity with vector databases (Pinecone, Weaviate, pgvector, Chroma). Background in telecommunications, networking, or SaaS infrastructure Familiarity with model evaluation frameworks and AI observability tools. Bachelor's or Master's in Computer Science or a related field. Responsibilities Design, build, and maintain scalable backend services and APIs supporting the platform. Contribute to full-stack feature development, collaborating with frontend, infrastructure, and product teams. Write clean, well-tested, production-ready code with strong attention to performance, reliability, and maintainability. Participate in architecture decisions, code reviews, and technical planning. Lead by example in advanced AI tool adoption — go beyond using Claude, Cursor, and Codex to shape how the team uses them actively. Design and build MCP servers to expose internal data sources, APIs, and tools to LLMs and AI agents. Architect and implement RAG systems for internal and product-facing use cases. Apply working knowledge of LLMs and LPMs to evaluate, fine-tune, and integrate models into engineering workflows. Build AI-driven automation for testing, code review, documentation, and operational workflows. Mentor engineers on effective AI tool usage, prompt engineering, and AI-augmented development practices. Evaluate emerging AI tools, frameworks, and platforms; recommend adoption strategies. 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 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 enhancing a SaaS marketplace platform hosted on AWS, using React and JavaScript technologies. The position involves developing complex back-end logic and contributing to a global engineering team. The role requires overlap with CET working hours and emphasizes high-quality, test-driven development. 🗂️ Requirements: 6+ years of full-stack development experience, 4+ years of experience with Node.js and/or Python, 4+ years of experience with React, Strong knowledge of JavaScript and TypeScript, Experience with ES6, Ability to write standards-compliant HTML and CSS, Experience with Test Driven Development, Familiarity with Git, Knowledge of Linux or Unix-based systems, Experience with RESTful web services 📃 Skills: React, JavaScript, TypeScript, Node.js, Python, HTML, CSS, TDD, Git, Linux, Unix, REST, AWS, ES6 🏢 Description: Svitla Systems Inc. is looking for a Senior Full Stack Engineer with React and JavaScript for a full-time position (40 hours per week) in Europe. Our client is a leading on-site work marketplace seeking creative and skilled developers to join the global engineering team. The mission is to design and develop technology that improves users' lives while providing an exceptionally high level of service. The cutting-edge technology SaaS solution hosted on AWS that enables today's and tomorrow’s Gig economy. Overlap till 7 pm CET. Requirements: 6+ years of experience in full-stack development. 4+ years of experience with Node.js and/or Python, React. Strong knowledge of JavaScript/TypeScript, ES6, and React. Understanding of writing clean, standards-compliant HTML and CSS. Strong focus and experience in Test Driven Development. Familiarity with the Git version control system. Knowledge of Linux or other Unix-based systems (Ubuntu/Debian is a plus). Understanding of web services-based solutions (REST specifically). Strong written and verbal communication skills. Ability to work well with others as part of a team and across teams. Ability to break down more significant initiatives into manageable pieces. Upper-intermediate level of English. Nice to have: Experience with Preprocessor (LESS/Sass). Experience working with offshore teams. Experience with React-native. Responsibilities: Participate in developing a feature connected with complex back-end logic for the client-worker part. Take part in team meetings, including daily stand-ups and backlog refinement sessions. Provide code refactoring when 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 Full Stack Developer role focused on building scalable frontend applications and BFF services using TypeScript, React, Node.js, and NestJS. The position involves API and LLM integrations, frontend architecture design, performance optimization, and collaboration with product and engineering teams. Hybrid work from Kraków is expected 2–3 days per week. 🗂️ Requirements: Strong experience with TypeScript, Several years of software engineering experience, Strong React and modern frontend development expertise, Experience with frontend unit and integration testing, API design and development experience with NestJS, Experience with Node.js, Understanding of server-side rendering and Server Components, Knowledge of CDN strategies and caching, Understanding of software architecture and system design, Experience with Docker, Experience with Git, Experience with CI/CD, Experience with Azure, Ability to work in uncertain environments and solve problems pragmatically 📃 Skills: TypeScript, React, NestJS, Node.js, Docker, Git, CI/CD, Azure, GraphQL, Zustand, ReactQuery, Python 🏢 Description: Role overview Svitla Systems Inc. is looking for a Senior Full Stack Developer for a full-time position (40 hours per week) in Kraków, Poland. Our client is a British wholesale distributor. You will be responsible for building user interfaces with TypeScript and React, developing and maintaining BFF services, integrating APIs and LLM services, designing scalable frontend architecture, optimizing application performance and user experience, implementing error handling and resilience patterns, and collaborating with product and engineering teams to deliver features from prototype to production. Office work is expected 2-3 days per week. Responsibilities Building user interfaces using TypeScript and React. Building and maintaining Backend for Frontend (BFF) services to orchestrate API calls and shape data for user interface needs. Integrating APIs, LLM services, and streaming endpoints to deliver product features. Designing and implementing scalable and maintainable frontend architecture. Ensuring performance, responsiveness, and optimal user experience across the application. Implementing error handling, loading states, and resilience patterns for distributed systems. Collaborating with product and engineering teams to bring concepts from prototype to production. Requirements Strong hands-on experience with TypeScript development. Several years of experience in software engineering, ideally with a strong focus on React and modern frontend development tools. Experience with frontend testing, including unit and integration testing. API design and development experience using NestJS and Node.js. Understanding of server-side rendering, Server Components, CDN strategies, and caching. Solid understanding of software architecture, clean code, and system design. Ability to work effectively in environments with a high degree of uncertainty and take a pragmatic, solution-oriented approach to problem-solving. Experience with Docker, Git, CI/CD, and Azure. Nice to Have Knowledge of GraphQL APIs. Experience with state management libraries (e.g. Zustand, React Query). Familiarity with Python, particularly in the context of working with backend services or AI-powered systems. Experience building data-intensive or real-time user interfaces. Familiarity with designing user experiences for AI-powered features or non-deterministic outputs. 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 Stack Engineer role focused on building end-to-end IoT solutions connecting edge devices, cloud services, and user-facing applications. The position involves backend development with Python, frontend work with React, and integration with AWS IoT services including Greengrass. You will contribute to cloud-based, distributed systems handling device communication and time-series data. 🗂️ Requirements: 3–5 years of professional software development experience, Practical experience with Python in backend or systems development, Experience building APIs with FastAPI or similar frameworks, Hands-on experience developing user interfaces with React, Experience with AWS IoT Core and MQTT messaging, Basic to intermediate experience with AWS IoT Greengrass and edge deployments, Experience with InfluxDB for time-series data, Awareness of UDS and J1939 communication protocols, Understanding of distributed systems and cloud-based architectures 📃 Skills: Python, FastAPI, React, AWS, AWSIoTCore, MQTT, Greengrass, InfluxDB, UDS, J1939, REST, Edge, Cloud 🏢 Description: We are looking for a Full Stack Engineer with a strong interest and hands-on experience in AWS IoT and cloud-based systems . You will contribute to building and maintaining end-to-end solutions that connect devices, cloud services, and user-facing applications. In this role, you’ll work closely with senior engineers, product managers, and other teams to design, implement, and improve IoT-driven features, while continuing to develop your skills in edge computing, backend development, and modern frontend technologies. Responsibilities Contribute to the design and implementation of end-to-end features across backend, frontend, and IoT components Develop backend services using Python and FastAPI Support and extend solutions based on AWS IoT Core and MQTT Work with AWS IoT Greengrass to deploy and manage components on edge devices, with guidance from senior team members Build and maintain frontend applications using React Store, query, and visualize time-series data using InfluxDB Collaborate on CI/CD pipelines and follow deployment and automation best practices Requirements 3–5 years of professional experience in software development Practical experience with Python in backend or systems development Hands-on experience building APIs with FastAPI or similar frameworks Experience developing user interfaces with React Familiarity with AWS IoT Core and MQTT-based messaging Basic to intermediate experience with AWS IoT Greengrass , including understanding edge deployment concepts Experience working with or learning InfluxDB for time-series data Awareness of device or vehicle communication protocols such as UDS and J1939 (hands-on experience is a plus) Understanding of distributed systems and cloud-based architectures Ability to work collaboratively in a team and take ownership of assigned tasks Good problem-solving skills and willingness to learn complex systems Nice to Have Familiarity with CI/CD pipelines and infrastructure-as-code concepts Basic knowledge of observability and system monitoring We Offer Opportunity to grow into AWS IoT and edge computing expertise Hands-on experience with real-world connected device systems Mentorship and collaboration with experienced engineers A modern tech stack covering cloud, edge, backend, and frontend Supportive environment focused on learning, quality, and continuous improvement