Middle .NET Developer, Tickets Selling System

🏢 Summary: Senior .NET backend role focused on modernizing and expanding a large-scale international ticket sales platform built on microservices and AWS. The position involves developing scalable APIs and backend services, collaborating with cross-functional teams, and working with modern .NET technologies, distributed systems, and cloud infrastructure. 🗂️ Requirements: 7+ years backend development experience, 7+ years commercial .NET development, C# experience, Experience with .NET, Knowledge of Clean Code, Understanding of OOP, Knowledge of WebAPI, Experience with microservices architecture, Experience with unit testing, Experience with mocking frameworks, Experience with dependency injection, Knowledge of Entity Framework or NHibernate, Experience with DBMS systems, Understanding of SOLID principles, Understanding of Agile methodology, Spoken English 📃 Skills: .NET, C#, REST, MSSQL, Postgres, DynamoDB, AWS, WebAPI, nUnit, Moq, Autofac, EntityFramework, NHibernate, Microservices, OOP, SOLID, Agile, JWT, OAuth2, OpenId 🏢 Description: Client The company is one of the regional leaders in the industry and is currently launching their new product, an international platform for ticket sales. The company's annual income exceeds 100 million euros. Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is very complex, it must comply with a large number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). The client is committed to ensuring that the system will be as modern as possible. It is based on microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. Specialists are working on the back-end in one of the teams. Position overview Modernization and development of the IT system of an independent online retailer of railroad tickets. Technology stack - .NET (always working with newest versions) - microservices - REST API - MSSQL - migrating to Postgres, DynamoDB Responsibilities - Refactoring and expanding tickets selling system - Develop, enhance, and maintain high-quality, scalable code - Work collaboratively with cross-functional teams to support the implementation of new features and achieve their objectives Requirements - 7+ years of backend development experience - 7+ years of experience in commercial software development on the .NET platform - Understanding of and experience working with C# - Development experience with .NET - Strong skills in Clean Code and OOP - Knowledge of WebAPI - Understanding of microservices architecture - Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) - Experience with dependency injection (preferred Autofac) - Knowledge of Entity Framework or NHibernate - Experience working with any DBMS system - Understanding of SOLID principles - Understanding of Agile development methodology - Good spoken English Nice to have - Knowledge of basic Authentication: types of Authentication, JWT, OAuth 2.0, OpenId Connect What We Offer - Up to 26 business days vacation per year - 10 illness/special days off per year - Health and life insurance - MyBenefit platform with Multisport option - Internal psychological support service - English language classes from the first working day - Access to external learning platforms: O’Reilly, LinkedIn Learning, Udemy, and internal training - Flexible workplace: office, home, or hybrid work - Tech Skills Mentoring Program - Opportunities to develop as a public speaker, mentor, or technical interviewer - Fully paid idle time when not involved in a project - Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior .NET Backend Developer role focused on modernizing and expanding a complex international ticket sales platform built on microservices architecture and hosted on AWS. The position involves developing and maintaining scalable backend services, refactoring existing systems, and collaborating with cross-functional teams. The project uses the latest .NET technologies and supports integration with multiple external systems including GDS APIs. 🗂️ Requirements: 7+ years of backend development experience, 7+ years of commercial development experience on .NET platform, Strong proficiency in C# and .NET, Experience with RESTful WebAPI, Experience working with microservices architecture, Experience with unit testing frameworks (e.g., nUnit), Experience with mocking frameworks (e.g., Moq), Experience with dependency injection (e.g., Autofac), Experience with Entity Framework or NHibernate, Experience with DBMS systems, Understanding of Clean Code and OOP principles, Understanding of SOLID principles, Understanding of Agile methodology, Good spoken English 📃 Skills: .NET, C#, REST, WebAPI, Microservices, MSSQL, PostgreSQL, DynamoDB, AWS, nUnit, Moq, Autofac, EntityFramework, NHibernate, OOP, SOLID, Agile, JWT, OAuth2, OpenID 🏢 Description: Client The company is one of the regional leaders in the industry and is currently launching their new product, an international platform for ticket sales. The company's annual income exceeds 100 million euros. Join a great company, not merely an individual project Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is very complex, it must comply with a large number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). Our client is committed to ensuring that the system will be as modern as possible. It is based on microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. DataArt's specialists are working on the back-end in one of the teams. Position overview DataArt is currently helping to modernize and develop the IT system of an independent online retailer of railroad tickets. Technology stack .NET (always working with newest versions) microservices REST API MSSQL migrating to Postgres, DynamoDB Responsibilities Refactoring and expanding tickets selling system Develop, enhance, and maintain high-quality, scalable code Work collaboratively with cross-functional teams to support the implementation of new features and achieve their objectives Requirements 7+ years of backend development experience 7+ years of experience in commercial software development on the .NET platform Understanding of and experience working with C# Development experience with .NET Strong skills in Clean Code and OOP Knowledge of WebAPI Understanding of microservices architecture Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) Experience with dependency injection (preferred Autofac) Knowledge of Entity Framework or NHibernate Experience working with any DBMS system Understanding of SOLID principles Understanding of Agile development methodology Good spoken English Nice to have Knowledge of basic Authentication: types of Authentication, JWT, OAuth 2.0, OpenId Connect What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Backend .NET Developer role focused on modernizing and expanding a large-scale international ticket sales platform built on microservices and deployed on AWS. The position involves developing and refactoring a complex, regulation-compliant system that integrates with external clients via REST APIs. You will work on scalable backend services within a distributed architecture supporting web and mobile applications. 🗂️ Requirements: 7+ years backend development experience, 7+ years commercial .NET development, Strong C# knowledge, Experience with .NET WebAPI, Experience with microservices architecture, Experience with unit testing frameworks, Experience with dependency injection, Experience with ORM frameworks, Experience with relational or NoSQL databases, Knowledge of Clean Code, OOP, SOLID, Experience in Agile environment 📃 Skills: .NET, C#, WebAPI, REST, Microservices, MSSQL, PostgreSQL, DynamoDB, AWS, nUnit, Moq, Autofac, EntityFramework, NHibernate, OOP, SOLID, JWT, OAuth2, OpenIdConnect, Agile 🏢 Description: Client The company is one of the regional leaders in the industry and is currently launching their new product, an international platform for ticket sales. The company's annual income exceeds 100 million euros. Project overview The client uses various tools to reach their customers, such as a mobile app, a responsive web application, or communicating with them directly through the call center. The system is very complex, it must comply with a large number of regulations. We provide APIs for different clients including the biggest Global Distribution Systems (GDSes). Our client is committed to ensuring that the system will be as modern as possible. It is based on microservice architecture with the use of continuous integration, where a few hundred components operate independently of each other and can be used as they become available. This increases the modularity of the system and optimizes the use of the services. All components run on AWS. Team Several independent teams are working on the project. The goals of each team are limited to the part of the system they're working on. DataArt's specialists are working on the back-end in one of the teams. Position overview DataArt is currently helping to modernize and develop the IT system of an independent online retailer of railroad tickets. Technology stack .NET (always working with newest versions) microservices REST API MSSQL migrating to Postgres, DynamoDB Responsibilities Refactoring and expanding tickets selling system Develop, enhance, and maintain high-quality, scalable code Work collaboratively with cross-functional teams to support the implementation of new features and achieve their objectives Requirements 7+ years of backend development experience 7+ years of experience in commercial software development on the .NET platform Understanding of and experience working with C# Development experience with .NET Strong skills in Clean Code and OOP Knowledge of WebAPI Understanding of microservices architecture Experience with unit testing (like nUnit) and mocking frameworks (preferred Moq) Experience with dependency injection (preferred Autofac) Knowledge of Entity Framework or NHibernate Experience working with any DBMS system Understanding of SOLID principles Understanding of Agile development methodology Good spoken English Nice to have Knowledge of basic Authentication: types of Authentication, JWT, OAuth 2.0, OpenId Connect What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior iOS Engineer role focused on modernizing and expanding a large-scale international ticket sales platform built on microservices and AWS. The position centers on developing and optimizing a mobile app through data-driven experimentation, A/B testing, and feature flag management. You will collaborate with cross-functional teams to deliver scalable, high-quality iOS solutions using modern Apple technologies. 🗂️ Requirements: 6+ years of iOS development experience with Swift, Hands-on experience with experimentation and R&D initiatives, Experience with Statsig or similar experimentation platforms, Strong knowledge of Clean Code and OOP principles, Proficiency in SwiftUI and UIKit, Experience with unit testing and working without dedicated QA engineers, Understanding of SOLID principles, Familiarity with Agile methodology, Good spoken English 📃 Skills: Swift, SwiftUI, UIKit, GCD, CoreData, SPM, TestFlight, Figma, Statsig, CUPED, Bayesian, AWS, Microservices, UnitTesting, UITesting, ABTesting, OOP, SOLID, Agile 🏢 Description: Client Our client is a regional leader in the transportation industry, with annual revenue exceeding €100 million, currently launching a new international ticket sales platform. Project overview The client engages users through a mobile app, responsive web application, and call center. The system is complex and must comply with numerous regulations. The system is built on a microservice architecture with continuous integration. Hundreds of components run independently on AWS, increasing modularity and optimizing service usage. Team Multiple independent teams contribute to different parts of the system. DataArt specialists are embedded across these teams. The mobile team is focused on shaping the future of the client’s mobile app—enhancing performance and evolving its functionality. Position overview DataArt is supporting the modernization and development of the IT system for an independent online railway ticket retailer. We hire for the company, not just the project, ensuring ongoing opportunities or paid idle time between assignments. In this role, you will enhance digital products through data-driven experimentation and analytics. Responsibilities include running large-scale A/B and multivariate tests using tools like Statsig, applying advanced statistical methods such as CUPED and Bayesian Autotune, automating traffic allocation to optimize feature performance, managing feature flagging with gradual rollouts, kill switches, and targeting, and linking feature flags directly to product metrics. Technology stack iOS: Swift UI: SwiftUI, UIKit Concurrency: GCD, Swift Concurrency Persistence: CoreData Tooling: SPM, TestFlight, Figma Testing: Unit Testing, UI Testing, A/B Testing Responsibilities Refactor and expand the ticket-selling system Develop, enhance, and maintain high-quality, scalable code Collaborate with cross-functional teams to implement new features and support experimentation initiatives Requirements 6+ years of iOS development experience using Swift Experience in experimentation and R&D Hands-on experience with Statsig or similar platforms Strong Clean Code and OOP skills Knowledge of SwiftUI and UIKit Experience with unit testing and working without dedicated QA engineers Understanding of SOLID principles Familiarity with Agile development methodology Good spoken English

🏢 Summary: Backend Developer (.NET) role focused on building and migrating a large-scale travel booking platform from monolithic to microservices architecture. The position involves developing scalable backend services, integrating multiple external APIs, and ensuring reliable data synchronization and high-performance booking processes. Work includes close collaboration within Agile teams and contribution to CI/CD practices. 🗂️ Requirements: 3+ years experience with .NET including .NET Core and .NET Framework 4.8 (Web API), Strong knowledge of microservices architecture, Experience with Clean Architecture and MediatR, Solid experience with SQL Server, Solid experience with MongoDB, Experience with Azure Service Bus or NServiceBus, Experience with CI/CD pipelines (preferably Azure DevOps), Ability to work independently and solve complex technical problems, English level Intermediate+ or higher 📃 Skills: .NET, C#, WebAPI, NETCore, SQLServer, MongoDB, Microservices, CleanArchitecture, MediatR, AzureServiceBus, NServiceBus, AzureDevOps, CICD, GitHub, Jira, Confluence 🏢 Description: Andersen is hiring a Backend Developer (.NET) for a project developing a travel platform, ensuring API integrations, data synchronization, and reliable, scalable booking processes. The customer is a technology-driven company in the travel sector, providing a comprehensive booking and procurement platform for industry professionals. Its solutions support large transaction volumes, integrate with a wide network of partners, and offer tools that streamline operations and enhance productivity. Focused on innovation and scalability, the customer continues to expand its ecosystem, strengthen partnerships, and improve data accuracy to deliver a modern digital infrastructure for the travel value chain. The project is focused on developing a travel platform that integrates multiple external APIs into a unified system. It ensures reliable data synchronization and seamless booking processes to support scalable and high-performance partner connectivity. The position assumes 12 to 21 CET work schedule. Responsibilities: Developing and maintaining backend services in .NET 4.8 (Web API) and .NET Core as part of a large-scale migration from monolithic to microservice architecture. Collaborating with cross-functional teams to design and implement scalable, maintainable, and performant services using Clean Architecture and MediatR. Integrating with SQL Server and MongoDB as data backends. Working with Azure Service Bus (NServiceBus) and other Azure services such as Azure Functions and ADF (nice to have). Participating in Agile ceremonies (standups, sprint planning, retrospectives) within 2-week sprint cycles. Contributing to CI/CD practices using Azure DevOps (builds and pipelines). Collaborating via Jira, Confluence, GitHub, and Microsoft Teams. Must-haves: Experience with .NET for 3+ years, including strong experience with .NET Core and .NET Framework 4.8 (Web API). Deep understanding of microservice architecture, Clean Architecture patterns, and MediatR. Solid experience with SQL Server and MongoDB. Experience with Azure Service Bus / NServiceBus. Familiarity with CI/CD tools and pipelines (preferably Azure DevOps). Strong problem-solving skills and the ability to work independently. Level of English – from Intermediate+ and above. Nice-to-haves: Experience in frontend development. Experience with Azure Functions, Azure Data Factory (ADF), or other Azure ecosystem tools. Previous experience in the travel industry, particularly with backend services for hotel booking/search. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies); Certification compensation (AWS, PMP, etc). Referral program. English courses. Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy Join us!

🏢 Summary: Backend Developer (.NET) role focused on building and migrating a travel platform from monolith to microservices, ensuring reliable API integrations and scalable booking processes. The position involves developing high-performance backend services, integrating multiple external systems, and supporting data synchronization across a distributed architecture. Work includes close collaboration within Agile teams and contribution to CI/CD and cloud-based infrastructure. 🗂️ Requirements: 3+ years experience with .NET, Strong experience with .NET Core, Strong experience with .NET Framework 4.8 (Web API), Experience with microservice architecture, Knowledge of Clean Architecture patterns, Experience with MediatR, Experience with SQL Server, Experience with MongoDB, Experience with Azure Service Bus or NServiceBus, Experience with CI/CD pipelines, Familiarity with Azure DevOps, English level Intermediate+ or higher 📃 Skills: .NET, .NETCore, .NETFramework, WebAPI, Microservices, CleanArchitecture, MediatR, SQLServer, MongoDB, AzureServiceBus, NServiceBus, AzureDevOps, CI/CD, Azure 🏢 Description: Andersen is hiring a Backend Developer (.NET) for a project developing a travel platform, ensuring API integrations, data synchronization, and reliable, scalable booking processes. The customer is a technology-driven company in the travel sector, providing a comprehensive booking and procurement platform for industry professionals. Its solutions support large transaction volumes, integrate with a wide network of partners, and offer tools that streamline operations and enhance productivity. Focused on innovation and scalability, the customer continues to expand its ecosystem, strengthen partnerships, and improve data accuracy to deliver a modern digital infrastructure for the travel value chain. The project is focused on developing a travel platform that integrates multiple external APIs into a unified system. It ensures reliable data synchronization and seamless booking processes to support scalable and high-performance partner connectivity. The position assumes 12 to 21 CET work schedule. Responsibilities: Developing and maintaining backend services in .NET 4.8 (Web API) and .NET Core as part of a large-scale migration from monolithic to microservice architecture. Collaborating with cross-functional teams to design and implement scalable, maintainable, and performant services using Clean Architecture and MediatR. Integrating with SQL Server and MongoDB as data backends. Working with Azure Service Bus (NServiceBus) and other Azure services such as Azure Functions and ADF (nice to have). Participating in Agile ceremonies (standups, sprint planning, retrospectives) within 2-week sprint cycles. Contributing to CI/CD practices using Azure DevOps (builds and pipelines). Collaborating via Jira, Confluence, GitHub, and Microsoft Teams. Must-haves: Experience with .NET for 3+ years, including strong experience with .NET Core and .NET Framework 4.8 (Web API). Deep understanding of microservice architecture, Clean Architecture patterns, and MediatR. Solid experience with SQL Server and MongoDB. Experience with Azure Service Bus / NServiceBus. Familiarity with CI/CD tools and pipelines (preferably Azure DevOps). Strong problem-solving skills and the ability to work independently. Level of English – from Intermediate+ and above. Nice-to-haves: Experience in frontend development. Experience with Azure Functions, Azure Data Factory (ADF), or other Azure ecosystem tools. Previous experience in the travel industry, particularly with backend services for hotel booking/search. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies); Certification compensation (AWS, PMP, etc). Referral program. English courses. Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy Join us!

🏢 Summary: Backend Developer (.NET) role focused on modernizing a legacy financial platform into a scalable, cloud-oriented microservices and event-driven architecture. The position involves building data-heavy backend services, handling data migration and quality, and integrating with modern storage and messaging solutions. Work includes full lifecycle development within an Agile environment using Azure-based tooling. 🗂️ Requirements: 4+ years commercial .NET/C# backend development experience, Strong expertise in C# and .NET Framework/.NET Core/.NET 8, Hands-on experience with microservices architecture, Experience with containerization, Practical experience with Azure Cosmos DB or other NoSQL databases, Strong understanding of CQRS, event sourcing, and event-driven architecture, Experience with Azure Event Hub, Kafka, or similar messaging systems, Experience with SQL Server and legacy stored procedures, Advanced SQL Server knowledge and performance tuning, Experience in data-heavy projects (data cleaning, migrations, data quality, data pipelines), Experience with Azure DevOps (boards, repos, pipelines), Proficiency with Git, Experience with CI/CD pipelines, Experience with unit testing, Upper-Intermediate English or higher 📃 Skills: C#, .NET, .NETCore, .NET8, Microservices, Azure, CosmosDB, NoSQL, SQLServer, CQRS, EventSourcing, Kafka, EventHub, Containerization, AzureDevOps, Git, CICD, UnitTesting 🏢 Description: Andersen is hiring a Backend Developer (.NET) in the EU for a project modernizing digital platforms and building scalable microservices-based solutions. The customer is an international financial services company focused on digital banking, payment solutions, and credit products across multiple European markets. The company operates in a technology-driven environment, developing scalable digital platforms, automated services, and modern payment infrastructure while actively investing in fintech innovation, cloud solutions, and data-driven technologies. The project is focused on modernizing an existing platform by transitioning from legacy architectures to a microservices and event-driven ecosystem. It includes developing new functionality in .NET and improving scalability, maintainability, and system flexibility. Responsibilities: Participating in the development of .NET-based microservices within a modern cloud-oriented architecture. Working on data-heavy backend features related to customer data management, data quality, and data synchronization. Contributing to data cleaning and migration activities, including work with SQL Server and legacy stored procedures. Designing and implementing services using event-driven architecture and event sourcing principles. Integrating backend services with NoSQL storage and search/indexing components. Supporting improvements to data anonymization and regulatory data handling processes. Collaborating with data analytics, QA, DevOps/Ops, and other engineering team members. Investigating and resolving service requests, defects, and production-related issues within the team’s scope. Participating in Agile/Scrum ceremonies, including sprint planning, daily standups, refinements, and reviews. Working with Azure DevOps boards, repositories, and pipelines as part of the delivery process. Must-haves: Commercial .NET / C# backend development experience for 4+ years. Strong expertise in C# and .NET Framework / .NET Core / .NET 8. Hands-on experience building microservice architectures. Experience with containerization. Practical experience with Azure Cosmos DB and/or other NoSQL storage. Solid understanding of event sourcing, CQRS and event-driven architecture. Experience with Azure Event Hub / Kafka or similar. Experience with SQL Server and legacy stored procedures for legacy layer work. Advanced SQL Server knowledge, including performance tuning. Experience on data-heavy projects, including data cleaning, migrations, data quality work, and building data pipelines. Comfortable with Azure DevOps as a toolset (boards, repos, pipelines). Proficiency in Git. Experience with CI/CD pipelines. Experience with unit testing. Level of English – from Upper-Intermediate and above. Nice to Have: Experience in FinTech / banking / regulated environments (payments, cards, lending, core banking). Practical knowledge of GDPR data requirements and experience working in regulated environments. Experience with Azure Data Factory. Familiarity with Databricks. Familiarity with Azure AI Search. Experience with Elastic Search suite (Elasticsearch, Kibana, Logstash or similar). Experience with IBM IIB / Enterprise Service Bus or similar integration tools. Experience with Enterprise Scheduler tools (Automic or similar). DevOps awareness: understanding of CI/CD, IaC to comfortably work in a pipeline-driven environment. Background in data quality / MDM / master data management projects. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. Private health insurance and compensation for sports activities. Join us! Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl

🏢 Summary: The offer is for a DevOps Engineer to build and operate scalable, secure AWS infrastructure for a cloud-native AI Talent Intelligence Platform. The role focuses on production-grade infrastructure, CI/CD automation, observability, security, cost optimization, and ML/AI workload support. It involves full ownership of AWS environments across development and production with strong emphasis on reliability and compliance. 🗂️ Requirements: 5+ years of production infrastructure experience, 3+ years of hands-on AWS experience, Strong experience with AWS services: RDS Postgres, VPC, IAM, ECS or EKS, ALB/NLB, Route53, S3, CloudFront, CloudWatch, Secrets Manager, Advanced Terraform usage: modules, remote state, drift detection, multi-environment setups, Experience building and maintaining CI/CD pipelines (GitHub Actions or equivalent), Proficiency with Linux and containerization, Experience implementing observability: metrics, logs, traces, alerting, On-call and incident management experience, PostgreSQL operations knowledge: backups, migrations, performance tuning, Security best practices: IAM policies, secret management, encryption, AWS cost monitoring and optimization, English proficiency Intermediate+ or higher 📃 Skills: AWS, RDS, PostgreSQL, EC2, ECS, EKS, VPC, IAM, Route53, S3, CloudFront, CloudWatch, SecretsManager, ACM, SES, Terraform, GitHubActions, Linux, Docker, Grafana, Datadog, CI/CD, ALB, NLB, TLS 🏢 Description: Andersen is hiring a DevOps Engineer in the EU for a project building cloud-native AI platforms and ensuring scalable, secure, and reliable infrastructure. The customer is an international company focused on delivering innovative digital solutions and technology-driven services. The organization supports businesses in improving operational efficiency, streamlining processes, and accelerating digital transformation initiatives. By leveraging modern technologies and industry best practices, the company develops scalable and secure solutions tailored to evolving business needs. The customer operates in a dynamic environment, emphasizing innovation, collaboration, and the continuous enhancement of products and services to create long-term value for its clients. The project is focused on developing a cloud-native Talent Intelligence Platform powered by AI and machine learning technologies. It includes building scalable AWS-based infrastructure, supporting intelligent search and ranking capabilities, and ensuring secure, reliable, and observable platform operations. Responsibilities: Owning AWS infrastructure across dev and prod — RDS (Postgres), EC2/ECS/EKS workloads, VPC, IAM, Route53, S3, CloudFront, Secrets Manager, ACM, SES, CloudWatch. Keeping dev and prod in lockstep — same Terraform modules, same patterns, real environment parity. Running CI/CD — GitHub Actions pipelines across several service repos (backend, frontend, AI/ML, gateway, billing). Trunk-based, feature-flagged, main always deployable. Codifying infrastructure — Terraform for everything that touches AWS. No click-ops. Managing observability — metrics, logs, traces, alerting. CloudWatch + Grafana/Datadog (your call, with budget). SLOs that matter. Participating in incident response — on the rotation. Writing runbooks. Leading blameless postmortems. Managing cost control — monthly bill review, right-sizing, Savings Plans / RIs, S3 lifecycle, RDS tuning. Catching anomalies before finance does. Ensuring security & compliance — IAM least-privilege, secrets rotation, vulnerability scanning, GDPR-aligned data handling with EU-resident third-party providers, backup/DR testing. Supporting ML/AI infrastructure — model serving latency budgets, embedding storage, GPU/CPU tradeoffs, A/B infrastructure for ranking experiments. Managing database operations — RDS upgrades, parameter tuning, backward-compatible migrations, read replicas, PITR. Must-have: Experience running production infrastructure for 5+ years. Experience working with AWS for 3+ years. Hands-on with: RDS Postgres, VPC networking, IAM, ECS or EKS, ALB/NLB, Route53, S3, CloudFront, CloudWatch, Secrets Manager. Terraform in anger — modules, remote state, drift detection, multi-environment. CI/CD — GitHub Actions or equivalent. Linux + containers — Docker, image hygiene, sensible base images, multi-stage builds. Observability — metrics, logs, traces, and alerting. Incident command — on-call experience, leading incidents, writing postmortems. PostgreSQL operations — backups, migrations, query performance basics, RDS quirks. Security fundamentals — IAM policy writing, secret management, TLS, encrypted-at-rest by default. Cost awareness — monitoring and optimizing AWS infrastructure costs. Level of English – from Intermediate+ and above. Nice to haves: Experience with Keycloak in production environments. Experience with Vespa, Elasticsearch, OpenSearch, or other search infrastructure. Experience with AWS Bedrock or other managed AI tooling. Experience with ML serving using SageMaker, Bedrock, or self-hosted GPU inference. Experience with GDPR compliance and EU data residency requirements. Experience with Helm, Kustomize, and ArgoCD. FinOps mindset — tagging strategy, showback, and anomaly detection. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. The opportunity to change the project and/or develop expertise in an interesting business domain. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. Private health insurance and compensation for sports activities. Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl Join us! https://people.andersenlab.com/

🏢 Summary: Senior Full-Stack Engineer role focused on designing and delivering scalable web applications using Python and modern frontend technologies within a global technology modernization program. The position involves architectural design, backend and frontend development, and building cloud-native solutions on AWS. The project is in an early stage, emphasizing system architecture, technology selection, and proof-of-concept development. 🗂️ Requirements: 5+ years of experience in modern web application development with React and Next.js, Experience in Python backend development with FastAPI or Django, Proven experience in architecting and scaling full-stack web applications, Hands-on experience with AWS services (Lambda, Step Functions, API Gateway, Fargate, Kinesis Data Streams), Experience with Infrastructure as Code using AWS CloudFormation, Experience with CI/CD pipelines and DevOps practices, Experience with GitHub Actions for automation, Experience in writing and maintaining unit and integration tests 📃 Skills: Python, React, Next.js, FastAPI, Django, AWS, Lambda, StepFunctions, APIGateway, Fargate, Kinesis, CloudFormation, GitHubActions, CI/CD, DevOps, REST, API, UnitTesting, IntegrationTesting 🏢 Description: Client Our client is one of the leading reinsurance service providers across the globe. Their technological platform is constantly evolving as they apply new and emerging technologies to their expanding business. Join a great company, not merely an individual project Project overview Clients’ technological platforms are constantly evolving as they adopt new and emerging technologies to support their expanding businesses. The team manages applications at the heart of clients’ core business strategies and supports a global user base. The nature of clients’ businesses demands high levels of agility, which in turn requires the team to be technically superior. The project is part of clients’ global technology modernization roadmaps. It aims to equip key business lines with the technology needed to address modern market challenges and seize new opportunities. The development focuses on core business applications using a modern AWS toolset with Python on the backend. As the project is in its early stages, a significant portion of the work involves architectural design, technology selection, and proof-of-concept (POC) activities. Position overview We are looking for a Senior Full-Stack Engineer with strong expertise in Python, React and Next.js on frontend who can design, architect, and deliver scalable systems. In this role, you will be responsible for designing and developing scalable, maintainable frontend architectures using React.js and Next.js, while also contributing to backend development leveraging modern Python-based technologies. This position offers the exciting opportunity to work on a cutting-edge project that is part of a broader technology modernization roadmap, utilizing advanced AWS tools and modern development practices. Responsibilities Design, build, and maintain high-quality backend systems using Python with frameworks such as FastAPI, Django, or similar. Make architectural decisions regarding component structure, API design, infrastructure and data flow. Develop, optimize, and maintain high-quality, scalable applications. Continuously improve and optimize performance and user experience. Collaborate closely with business domain leads, users, designers, Frontend and Backend engineers to ensure seamless integration of frontend components through APIs and smooth data flow. Optimize applications for performance, observability, and reliability. Perform testing before release. Write and maintain unit tests and integration tests to ensure code stability and reliability. Requirements 5+ years of experience in Modern Web Application development in particular React, Next.js Experience in Python-based backend development, especially with modern frameworks like FastAPI/Django. Proven experience in architecting and scaling full-stack web applications. Experience working with AWS (Lambda, Step Functions, API Gateway Fargate, Kinesis Data Streams) Extensive experience in writing and maintaining unit tests and integration tests. Experience with Infrastructure as Code frameworks like AWS CloudFormation. Experience with software automation platforms like GitHub Actions. Strong problem-solving skills and logical thinking, with the ability to quickly identify and resolve issues. Familiarity with CI/CD pipelines and DevOps practices. Nice to have Prior experience in working in Financial Services/Insurance industry. Prior experience working in an Agile/Scrum development environment.

🏢 Summary: Backend Developer (.NET) role focused on modernizing a financial services platform by transitioning from legacy systems to a scalable, cloud-oriented microservices and event-driven architecture. The position involves developing data-heavy backend services, improving data quality and migrations, and integrating with NoSQL and event streaming technologies. You will work within an Agile team using Azure DevOps and CI/CD pipelines to deliver secure, high-performance solutions in a regulated environment. 🗂️ Requirements: 4+ years of commercial .NET / C# backend development experience, Strong expertise in C# and .NET Framework / .NET Core / .NET 8, Hands-on experience building microservice architectures, Experience with containerization, Experience with Azure Cosmos DB or other NoSQL databases, Solid understanding of event sourcing, CQRS and event-driven architecture, Experience with Azure Event Hub, Kafka or similar messaging systems, Experience with SQL Server and legacy stored procedures, Advanced SQL Server knowledge including performance tuning, Experience in data-heavy projects (data cleaning, migrations, data quality, data pipelines), Experience with Azure DevOps (boards, repos, pipelines), Proficiency in Git, Experience with CI/CD pipelines, Experience with unit testing, Upper-Intermediate level of English or higher 📃 Skills: C#, .NET, .NETCore, .NET8, SQL, SQLServer, CosmosDB, NoSQL, Kafka, AzureEventHub, Microservices, CQRS, EventSourcing, Docker, AzureDevOps, Git, CI/CD, UnitTesting 🏢 Description: Andersen is hiring a Backend Developer (.NET) in the EU for a project modernizing digital platforms and building scalable microservices-based solutions. The customer is an international financial services company focused on digital banking, payment solutions, and credit products across multiple European markets. The company operates in a technology-driven environment, developing scalable digital platforms, automated services, and modern payment infrastructure while actively investing in fintech innovation, cloud solutions, and data-driven technologies. The project is focused on modernizing an existing platform by transitioning from legacy architectures to a microservices and event-driven ecosystem. It includes developing new functionality in .NET and improving scalability, maintainability, and system flexibility. Responsibilities: Participating in the development of .NET-based microservices within a modern cloud-oriented architecture. Working on data-heavy backend features related to customer data management, data quality, and data synchronization. Contributing to data cleaning and migration activities, including work with SQL Server and legacy stored procedures. Designing and implementing services using event-driven architecture and event sourcing principles. Integrating backend services with NoSQL storage and search/indexing components. Supporting improvements to data anonymization and regulatory data handling processes. Collaborating with data analytics, QA, DevOps/Ops, and other engineering team members. Investigating and resolving service requests, defects, and production-related issues within the team’s scope. Participating in Agile/Scrum ceremonies, including sprint planning, daily standups, refinements, and reviews. Working with Azure DevOps boards, repositories, and pipelines as part of the delivery process. Must-haves: Commercial .NET / C# backend development experience for 4+ years. Strong expertise in C# and .NET Framework / .NET Core / .NET 8. Hands-on experience building microservice architectures. Experience with containerization. Practical experience with Azure Cosmos DB and/or other NoSQL storage. Solid understanding of event sourcing, CQRS and event-driven architecture. Experience with Azure Event Hub / Kafka or similar. Experience with SQL Server and legacy stored procedures for legacy layer work. Advanced SQL Server knowledge, including performance tuning. Experience on data-heavy projects, including data cleaning, migrations, data quality work, and building data pipelines. Comfortable with Azure DevOps as a toolset (boards, repos, pipelines). Proficiency in Git. Experience with CI/CD pipelines. Experience with unit testing. Level of English – from Upper-Intermediate and above. Nice to Have: Experience in FinTech / banking / regulated environments (payments, cards, lending, core banking). Practical knowledge of GDPR data requirements and experience working in regulated environments. Experience with Azure Data Factory. Familiarity with Databricks. Familiarity with Azure AI Search. Experience with Elastic Search suite (Elasticsearch, Kibana, Logstash or similar). Experience with IBM IIB / Enterprise Service Bus or similar integration tools. Experience with Enterprise Scheduler tools (Automic or similar). DevOps awareness: understanding of CI/CD, IaC to comfortably work in a pipeline-driven environment. Background in data quality / MDM / master data management projects. Reasons why this job would be interesting to you: Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc. The opportunity to change the project and/or develop expertise in an interesting business domain. Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). Certification compensation (AWS, PMP, etc). Referral program. Private health insurance and compensation for sports activities. Join us! Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy/pl https://andersenlab.com/privacy-policy