Senior .Net Software Engineer

🏢 Summary: Senior Java Fullstack Developer role focused on developing and maintaining both backend and frontend solutions for core automotive industry products. The position involves working across the full software development lifecycle using modern Java and Angular technologies in an Agile environment. The role also includes collaboration, mentoring junior developers, and contributing to high-quality, secure software delivery. 🗂️ Requirements: Minimum 4 years commercial experience with Java and Angular, Experience with Agile methodologies, Professional experience with frontend technologies, Good command of English, Strong analytical skills, Strong problem-solving abilities, Strong communication skills 📃 Skills: Java, Spring, SpringBoot, JPA, Hibernate, Angular, TypeScript, REST, SOAP, Kafka, Redis, Docker, Maven, Jenkins, SVN, Git, SQL, CI, Scrum, IntelliJ 🏢 Description: OEC creates automotive technology , helping repair shops, auto part distributors, and manufacturers run their businesses more effectively and profitably through e-commerce and data innovation. We increase efficiency across the automotive aftermarket, OEM, collision, mechanical, and supply chain spaces by connecting repair shops, dealers, parts distributors About You We are looking for a Senior Java Fullstack Developer that will take the responsibility for the development of both: front-end and back-end of the project. You will join a team working on our various core products for Automotive industry. Tech stack Backend: Java 21 and higher, Spring Framework, Spring Boot, JPA, Hibernate Frontend: Angular 17, Typescript Others: REST and SOAP Services, Apache Kafka, Redis, Docker, Intellij IDEA, Maven, Jenkins, SVN, GIT, Scrum, CI, SQL and database knowledge Responsibilities Participating in the project work during all the stages of the software development lifecycle Contributing ideas during meetings and when working in groups Working closely with senior members to deliver on time, within budget and according to the company quality and security procedures Assisting junior team members to help them to develop Developing and maintaining software solutions using company defined development tools Working with team members to resolve problems Using English on the daily basis. Our main office language is Polish though Strong drive to use AI Tools (GitHub Copilot, Claude Code) Requirements Minimum of 4 years commercial experience in Java/Angular technologies Experience with working in Agile projects Good command of English language Strong analytical and communication skills Professional experience in front-end technologies Demonstrates problem solving abilities

🏢 Summary: Frontend/Fullstack Developer role focused on building and maintaining core automotive industry products using Angular and Java. The position covers full software development lifecycle with responsibility for both frontend and backend components in an Agile environment. The role involves collaboration with cross-functional teams and use of modern development and AI-assisted tools. 🗂️ Requirements: Minimum 4 years commercial experience with Angular, Professional experience with Java backend development, Experience working in Agile projects, Strong English proficiency, Ability to work across frontend and backend, Problem-solving skills, Strong analytical skills, Strong communication skills 📃 Skills: Angular, TypeScript, Java, Spring, SpringBoot, JPA, Hibernate, REST, SOAP, Kafka, Redis, Docker, Maven, Jenkins, SVN, Git, SQL, CI, Scrum, IntelliJ 🏢 Description: OEC creates automotive technology , helping repair shops, auto part distributors, and manufacturers run their businesses more effectively and profitably through e-commerce and data innovation. We increase efficiency across the automotive aftermarket, OEM, collision, mechanical, and supply chain spaces by connecting repair shops, dealers, parts distributors About You We are looking for a Frontend/ Fullstack Developer that will take the responsibility for the development of both: front-end and back-end of the project. You will join a team working on our various core products for Automotive industry. Tech stack Frontend: Angular 17, Typescript Backend: Java 21 and higher, Spring Framework, Spring Boot, JPA, Hibernate Others: REST and SOAP Services, Apache Kafka, Redis, Docker, Intellij IDEA, Maven, Jenkins, SVN, GIT, Scrum, CI, SQL and database knowledge Responsibilities Participating in the project work during all the stages of the software development lifecycle Contributing ideas during meetings and when working in groups Working closely with senior members to deliver on time, within budget and according to the company quality and security procedures Assisting junior team members to help them to develop Developing and maintaining software solutions using company defined development tools Working with team members to resolve problems Using English on the daily basis. Our main office language is Polish though Strong drive to use AI Tools (GitHub Copilot, Claude Code) Requirements Minimum of 4 years commercial experience in Angular Experience with working in Agile projects Good command of English language Strong analytical and communication skills Professional experience in backend technologies (preferably Java) Demonstrates problem solving abilities

🏢 Summary: Senior Backend Engineer role focused on building and scaling a cloud-based SaaS platform using modern .NET services and REST APIs. The position involves designing distributed systems, improving reliability and observability, and working with cloud and container environments. You will contribute to technical decisions and engineering best practices within a collaborative team. 🗂️ Requirements: 5+ years backend development experience, Experience with SaaS and web applications, Strong knowledge of C#, Strong knowledge of modern .NET/.NET Core, Solid computer science fundamentals, Experience with distributed systems design, Experience with cloud platforms, Experience with containers and orchestration, Understanding of concurrency and performance, Knowledge of authentication and authorization mechanisms 📃 Skills: C#, .NET, .NETCore, REST, Azure, AWS, GCP, Kubernetes, Kafka, RabbitMQ, SQS, Docker, SQL, HTML, CSS, JavaScript 🏢 Description: We’re hiring a Senior Backend Engineer to help build and scale a cloud-based SaaS platform. You’ll work on modern .NET services and APIs, improve reliability and observability, and contribute to technical decisions as part of a collaborative engineering team. Responsibilities: Build and maintain backend services and REST APIs in C# / .NET (.NET Core). Design scalable solutions for distributed systems (async workflows, messaging, integrations). Work with cloud services (Azure/AWS/GCP) and container environments (e.g. Kubernetes). Strengthen system reliability with logging, metrics, tracing, and monitoring. Support secure access patterns: authentication/authorization, API gateway concepts. Contribute through code reviews, good engineering practices, and automation. Requirements: 5+ years of backend development experience, including SaaS and web applications. Strong knowledge of C# and modern .NET + solid CS fundamentals. Familiarity with containers/orchestration and cloud-native approaches. Experience with some of: Kafka/RabbitMQ/SQS, workflow orchestration, job scheduling, search. Good understanding of concurrency and performance. Strong communication skills; Agile/Scrum is a plus. Bonus: basic front-end knowledge (HTML/CSS/JS).

🏢 Summary: Senior Software Engineer role focused on developing and maintaining a complex enterprise .NET platform, combining backend development, production troubleshooting, and performance optimization. The position involves working on identity-related systems and improving architecture, reliability, and code quality within a large-scale environment. The engineer will contribute to technical decisions and future platform evolution. 🗂️ Requirements: 5+ years commercial experience with C# and .NET, Strong knowledge of ASP.NET Core, Experience with asynchronous programming, Experience with dependency injection, Hands-on experience with Entity Framework Core, Strong understanding of SQL Server, Experience with query optimization, Experience with OAuth2, Experience with OpenID Connect, Experience with JWT, Experience supporting and troubleshooting production systems, Fluent English 📃 Skills: C#, .NET, ASP.NET, EntityFramework, SQLServer, OAuth2, OpenIDConnect, JWT, IdentityServer, Duende, ActiveDirectory, AzureAD, MicrosoftGraph, Quartz.NET, SignalR, Playwright, AzureDevOps, CI/CD 🏢 Description: We are looking for an experienced Senior Software Engineer to develop and maintain a complex enterprise .NET platform used by global organizations. This role combines backend development , production troubleshooting , performance optimization , and work on identity-related systems . 💼 Responsibilities: Design, develop, and maintain backend services built with C# and .NET Investigate and resolve complex production issues and customer-reported problems Optimize application performance, database queries, and system reliability Collaborate with Product, Support, and Engineering teams on technical solutions Improve architecture, code quality, and engineering standards Participate in technical discussions and contribute to future platform development ✅ Requirements: 5+ years of commercial experience with C# and .NET Strong knowledge of ASP.NET Core and modern .NET applications Experience with asynchronous programming and dependency injection Hands-on experience with Entity Framework Core Good understanding of SQL Server, query optimization, and database performance Experience with OAuth2, OpenID Connect, JWT Experience supporting and troubleshooting production systems Fluent English communication skills 🌟Nice to have: Experience with IdentityServer / Duende IdentityServer Understanding of Active Directory, Azure AD or Microsoft Graph Hands-on experience with Quartz.NET or similar scheduling frameworks Familiarity with SignalR, Playwright, Azure DevOps and CI/CD pipelines 🎁 We offer: Work on a mature enterprise product used globally Influence technical decisions and platform evolution Private healthcare Life insurance Multisport Opportunity to work with modern .NET technologies and large-scale systems

🏢 Summary: Senior Full-Stack Engineer role focused on designing and developing full-stack cloud solutions for a high-traffic online marketplace. The position involves building and maintaining scalable web applications, leveraging AI-driven development practices, and working with event-driven microservices architectures. The role includes CI/CD management, cloud migrations, and performance optimization within a distributed agile team. 🗂️ Requirements: Canadian timezone work hours (EDT), 4+ years experience with C# or .NET for web development, 4+ years experience with React for web development, Experience with Azure and Azure to AWS migration, Expert proficiency in GenAI-driven development and GitHub Copilot/Codex integration, Deep understanding of AI agents and autonomous task orchestration, Mastery of prompt engineering techniques (CoT, Few-Shot, prompt optimization), Experience with Kafka and SQL, Strong knowledge of event-driven and microservices architecture, Experience with Application Insights, Experience with unit, component, and integration testing, Experience with Azure DevOps and JIRA, Experience working with agile methodologies (ScrumBan/Kanban, Gitflow) 📃 Skills: C#, .NET, React, Azure, AWS, GenAI, GitHub, Copilot, Codex, Kafka, SQL, ApplicationInsights, Microservices, CI/CD, AzureDevOps, JIRA, Gitflow, ScrumBan, Kanban 🏢 Description: We are looking for a Senior Full-Stack Engineer to join our team, Our customer is the European online car market with over 30 million monthly users, with a market presence in 18 countries. As a Senior Fullstack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Design and develop full-stack cloud solutions from technical analysis to integration testing. Support existing systems Mentor junior engineers on design patterns, code reviews, testing practices, and scalable architecture. Establish documentation standards across teams. Conduct root cause analysis and collaborate with production support to resolve issues. Evaluate third-party software with business and engineering teams. Maintain CI/CD pipelines for applications. Requirements: Canadian timezone work hours (EDT) 4+ years of experience with C# or .NET  for web application development 4+ years of experience with React for web application development Experience with Azure, including migration from Azure to AWS Expert proficiency in GenAI-driven development, GitHub Copilot/Codex integration, rapid prototyping, automated refactoring, and AI-accelerated debugging Deep understanding of AI agents, autonomous task orchestration, reasoning engines, tool-use integration, and multi-step workflow automation Mastery of iterative prompting. Chain-of-Thought (CoT), Few-Shot prompting, output validation, and prompt optimization for production-grade code Familiarity with Kafka, SQL, and performance optimization Strong understanding of event-driven and microservices architecture Experience, Application Insights, and responsive front-end design using React Background in high-traffic websites, performance tuning, and security Ability to communicate technical solutions effectively Expertise in unit, component, and integration testing Experience with Azure DevOps, and JIRA in distributed teams Solid grasp of agile methodologies, including ScrumBan/Kanban and Gitflow Nice to Have : Previous DevOps Experience is a great advantage Experience with Java and Scala Experience with observability tools like Datadog Proficiency with  Java/Spring Boot for building APIs and web applications - nice to have Experience with AWS Previous experience with GitHub This job opportunity for Canadian time zone.

🏢 Summary: Senior Software Engineer role focused on building and scaling cloud-native e-commerce solutions for the automotive repair industry. The position involves designing backend systems, developing microservices and APIs, and shaping system architecture in a modern AWS-based environment. You will contribute to high-load distributed systems while applying best engineering practices in a fully remote setup. 🗂️ Requirements: 5+ years of backend development experience, Strong proficiency in Java or Kotlin, Experience building and optimizing microservices, Experience developing APIs (REST, SOAP, gRPC), Experience with AWS cloud services, Experience with Kubernetes and Docker, Knowledge of TDD and CI/CD practices, Experience with high-load distributed systems, Experience with relational and NoSQL databases 📃 Skills: Java, Kotlin, Ktor, Spring, Gradle, gRPC, REST, SOAP, MariaDB, Redis, dbMate, Kubernetes, Docker, ArgoCD, Grafana, Prometheus, OpenTelemetry, ELK, GitHub, AWS, ECR, EKS, RDS, S3 🏢 Description: Team We are seeking a highly skilled and experienced Senior Software Engineer to join our dynamic team working on PartsTech solution. You will develop e-commerce solutions revolutionizing the automotive repair industry with cutting-edge, scalable software solutions. We’re on a mission to simplify and modernize how repair shops source and manage parts. About You You will play a key role in shaping our backend systems and technical direction, working with a modern tech stack in a collaborative, fast-paced environment. You will play a key role in developing cloud-native applications, mentoring engineers, and contributing to the development of scalable system architectures. The ideal candidate will have strong background in backend programming languages ( Java/Kotlin ), building and optimizing microservices, developing APIs (REST, SOAP, gRPC) , implementing best practices like TDD and CI/CD and utilizing Amazon Web Services (AWS) . We value strong problem-solving skills, experience with high-load distributed systems, and a proactive approach to software development. Tech stack Programming & frameworks: Kotlin, Ktor/Spring Boot, Gradle, gRPC Databases: MariaDB, dbMate, Redis Containers & orchestration: Kubernetes (K8s), Docker, ArgoCD Monitoring: Grafana, Prometheus, OpenTelemetry, ELK Stack Version Control: GitHub Actions Cloud Platforms: AWS (ECR, EKS, RDS, S3) If you have 5+ years of experience, enjoy solving complex problems, and want to contribute to innovative projects, we would love to connect! We offer the opportunity to work fully remotely.

🏢 Summary: The offer is for a Senior C# Engineer responsible for designing, developing, and optimizing distributed, high-volume, service-oriented applications using modern .NET technologies. The role involves end-to-end project ownership, working with cloud platforms, databases, messaging systems, and DevOps tools to deliver scalable and reliable solutions. The position requires strong expertise in enterprise-level development and building business-critical systems. 🗂️ Requirements: 5+ years of enterprise-level C#/.NET development experience, Experience with distributed and high-volume applications, Strong knowledge of object-oriented design, Experience with multi-threading, Experience with service-oriented architecture, Experience with cloud platforms (AWS or Azure), Experience with relational databases, Experience with distributed caching systems, Experience with messaging systems, Experience with DevOps tools, Experience working in Agile environments, Experience with test-driven development 📃 Skills: C#, .NET, AWS, Azure, SQL, Postgres, Snowflake, Redis, Kafka, Solace, Git, Jenkins, JIRA, Octopus, OOP, Multithreading, SOA, TDD 🏢 Description: Senior C# Engineer Join our tech team and play a key role in building and maintaining business-critical systems! We’re looking for a Senior C# Engineer with experience in distributed, high-volume applications and modern .NET technologies. What you’ll do: Design, develop, and optimize multi-threaded, service-oriented applications Own projects end-to-end, from development to deployment Collaborate with global teams to deliver robust, scalable solutions Support and improve core systems while introducing strategic enhancements What we’re looking for: 5+ years in enterprise-level C#/.NET development Strong skills in object-oriented design, multi-threading, and service-oriented architecture Experience with cloud platforms (AWS/Azure), databases (SQL/Postgres/Snowflake), and distributed caching (Redis) Familiarity with messaging systems (Kafka/Solace) Knowledge of DevOps tools (Git, Jenkins, JIRA, Octopus Deploy) Agile mindset and passion for quality, test-driven development, and problem-solving

🏢 Summary: Software development role focused on building and maintaining .NET-based solutions, designing scalable architectures, and collaborating with stakeholders in an Agile environment. The position involves end-to-end development, REST API integration, SQL Server database design, code quality practices, and continuous improvement initiatives. 🗂️ Requirements: 3+ years of experience with .NET 4.8+, Experience with .NET Core, Knowledge of Microsoft SQL Server, Experience with relational database design, Advanced SQL skills, Understanding of OOP principles, Knowledge of clean architecture design patterns, Experience building and consuming REST APIs, Proficiency with Visual Studio, Proficiency with VS Code, Experience with GitLab, Understanding of DevOps practices, English proficiency at C1 level 📃 Skills: .NET, .NETCore, SQL, SQLServer, OOP, REST, VisualStudio, VSCode, GitLab, DevOps, eFront, WebSphereTX, Agile, Scrum 🏢 Description: Key Responsibilities End-to-End Development: Design logical data models and build robust software solutions aligned with a well-defined, multi-year product roadmap. Technical Design & Innovation: Proactively propose innovative architectural enhancements through controlled proof-of-concepts (spikes) and ensure all solutions adhere to modern software security standards. Collaboration & Delivery: Work hand-in-hand with business stakeholders to translate functional requirements into efficient technical specs. Participate in workload estimation, planning, and proactive status reporting. Code Quality & Mentorship: Maintain high engineering standards by conducting thorough peer code reviews, ensuring excellent test coverage, and managing application source code configuration. Team & Culture: Foster a friendly, supportive environment focused on continuous learning, knowledge-sharing, and team-wide upskilling. Requirements Technical Expertise: 3+ years of professional experience working with .NET 4.8+ and .NET Core . Strong knowledge of Microsoft SQL Server , relational database design (ER models), and advanced SQL. Solid grasp of Object-Oriented Programming ( OOP ) principles and clean architecture design patterns. Hands-on experience building and consuming REST APIs . Proficiency with development and version control tools ( Visual Studio, VS Code, GitLab ). Soft Skills & Methodology: A proactive, problem-solving mindset with a collaborative, team-player attitude. Foundational understanding of DevOps practices. Fluency in English (minimum C1) , with strong written and verbal communication skills. Nice to Have Direct development or configuration experience with the eFront FIA platform (highly advantageous). Familiarity with WebSphere TX . Prior experience working within an Agile/Scrum framework.

🏢 Summary: Hands-on Software Engineer role focused on building two greenfield products using .NET and React in an AI-first engineering environment. The position involves designing and developing backend services and web frontends, shaping architecture and engineering practices, and leveraging AI tools to accelerate development. You will work with cloud-native and microservices architectures in an Agile, startup-style product team. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong commercial experience with C#/.NET, Experience building RESTful APIs, Experience developing web applications or SaaS products, Knowledge of data structures, algorithms, and design patterns, Experience with cloud platforms (Azure, AWS or GCP), Understanding of distributed systems concepts, Experience with microservices or service-oriented architecture, Experience with containerized deployments, Ability to work in Agile environment 📃 Skills: C#, .NET, React, REST, Azure, AWS, GCP, Kubernetes, Docker, Claude, Microservices, CI/CD, Kafka, SQS, RabbitMQ, HTML, CSS, JavaScript 🏢 Description: We’re hiring a hands-on Software Engineers to help us build two brand-new products. This is a total greenfield setup: new architecture, new codebases, new delivery approach, built as separate systems in .NET + React, with a strong focus on AI-first engineering. Day to day, you’ll use tools like Claude Code and work with a framework that leverages AI agents to speed up delivery, improve quality, and automate repetitive development work. You’ll join early, which means real influence: shaping architecture and technical direction, helping define quality standards, testing approach, deployments, and how the team works. The setup is closer to a startup-style product team than a rigid corporate project, while still having dedicated Engineering Manager, Product Manager, and Tech Lead to support delivery. What you’ll do: Build backend services and RESTful APIs using C#/.NET (.NET Core / .NET) Develop and evolve web frontends in React (experience layer / UI consuming APIs) Contribute to solution design in a service-oriented / microservices architecture Use Claude Code in daily work: prompt-driven coding, refactoring, test generation, and building/iterating on coding agents Help establish and improve engineering practices: testing strategy, code standards, CI/CD, quality automation Implement and enhance observability (logging, metrics, tracing) and API monitoring Work with cloud-native services (Azure/AWS/GCP) and containerised deployments (e.g., Kubernetes) Collaborate in an Agile setup: refinement, estimation, code reviews, continuous improvement What we’re looking for: minimum 5 years of professional software development experience Strong commercial experience with C#/.NET and building REST APIs Proven delivery of web applications / SaaS products Solid engineering fundamentals (data structures, algorithms, design patterns) Experience with cloud architectures (Azure, AWS or GCP) and cloud-native services Understanding of distributed systems concepts (scalability, reliability, concurrency) Strong problem-solving skills, clear communication, and a collaborative mindset Genuine interest in combining classic software engineering with practical AI tooling (Claude / agents) Nice to have: Experience with API gateways, identity/authentication, messaging (Kafka/SQS/RabbitMQ) Workflow orchestration / job scheduling / search-related experience Container orchestration knowledge (Kubernetes/Nomad/Mesos) Strong front-end fundamentals beyond React (HTML/CSS/JS best practices) Experience leading technical initiatives or acting as a go-to engineer on key topics

🏢 Summary: Lead Software Engineer role focused on building and maintaining scalable backend systems, APIs, and microservices using C#/.NET and Azure cloud technologies. The position involves owning the full software development lifecycle, optimizing distributed systems for scalability and reliability, and mentoring engineers in a fast-paced environment. The role requires full PST working hour coverage and extensive experience with cloud-native architectures and workflow orchestration tools. 🗂️ Requirements: 8+ years of software engineering experience in high scale distributed systems, 8+ years of experience building resilient and highly available web services, Experience developing backend services and APIs in C#/.NET, Experience with Azure services, Experience with microservices architecture and distributed systems, Hands-on experience with workflow orchestration tools, Experience designing RESTful or gRPC APIs, Knowledge of data storage security, availability, and compliance best practices, Experience documenting architectural standards and decisions, Experience in full stack development, Availability to fully cover PST working hours Monday to Friday, B.S., M.S., or PhD in Computer Science or equivalent experience 📃 Skills: C#, ASP.NET, Azure, AKS, Blob, SQL, NoSQL, gRPC, REST, Temporal, Airflow, .NET, Kubernetes 🏢 Description: (#5373) Working hours: 14:00-22:00 CET As a Lead Software Engineer, you will own all aspects of the software development lifecycle including design, development, testing, deployment and maintenance of product features in the Client's software products. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices. Responsibilities: Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in azure and various compliance level data-centers Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL Databases to build scalable, secure, and reliable cloud-native solutions Build and maintain microservices-based architectures using C#, ASP.NET , and others Design and implement RESTful or gRPC APIs, ensure seamless integration with other systems and products Optimize architecture and solution for scalability and availability with cost and maintenance in mind Identify and address performance bottlenecks and scalability challenges proactively Align across teams for designs, communicate and resolve roadblocks Guide and mentor other engineers through design and code reviews Requirements: 8+ years of software engineering experience in high scale distributed systems 8+ years of experience building resilient and highly available web services Extensive experience developing backend services and APIs in C#/.NET Experience with Azure services including App Services, AKS, Blob Storage, SQL/NoSQL Databases Experience with microservices architecture and distributed systems Hands-on experience with the Temporal .NET SDK or other workflow orchestration/tools (e.g., Durable Functions, Step Functions, Apache Airflow) Strong understanding of designing and building scalable, secure, and reliable cloud-native applications Experience with designing and implementing RESTful or gRPC APIs Knowledge of data storage best practices, including security, availability, and compliance Experience documenting architectural standards and decisions Solid experience in full stack development Availability to fully cover PST working hours from Monday to Friday is a mandatory requirement for this role. B.S., M.S., or PhD in Computer Science or equivalent experience Preferred Qualifications Familiarity with integrating orchestration tools into enterprise software environments Experience with performance optimization, cost management, and designing for high availability Excellent communication and collaboration skills Prior experience mentoring engineers and conducting design/code reviews Background in supporting analytics and business intelligence integrations