Senior Clipper/XBase Developer

🏢 Summary: Senior Backend Developer (remote, 12-month contract) focused on building scalable data processing systems and robust data pipelines. The role involves designing system architecture, coding for scale, and collaborating across teams while experimenting with new technologies and MVPs. 🗂️ Requirements: BSc in Software Engineering, Computer Science or related field, 5+ years of experience with Python, Hands-on experience with data pipelines, Experience designing scalable system architectures, Experience in backend software development 📃 Skills: Python, AWS, CI/CD, DevOps, SQL, ElasticSearch, OpenSearch, Neptune, Neo4j 🏢 Description: Start: ASAP Work model: Remote Length of contract: 12 months + extensions We’re looking for a Senior Backend Developer with a data pipeline emphasis with a strong understanding of and hands-on experience with broad software development, i.e., system architecture, coding for scale, and communicating possibilities for what can be built and maintained, as well as a love for experimenting and building MVPs. Core Responsibilities: Design and implement software architectures for scalable data processing systems. Develop and maintain data pipelines for efficient data ingestion and processing. Collaborate with cross-functional teams to define and streamline software development processes. Participate in code reviews and maintain high software quality standards. Experiment with new technologies and frameworks to enhance system performance. Key Requirements: BSc in Software Engineering, Computer Science, or other relevant field 5+ years of experience with Python Experience with data pipelines Nice to Have: Experience with one or more AWS services AWS DevOps CI/CD Pipelines Relational databases ElasticSearch/OpenSearch Graph databases (e.g., Neptune or Neo4j)

🏢 Summary: Senior Developer role focused on designing and implementing business-logic layer solutions for insurance systems in a microservices architecture integrated with a monolith. The position involves developing and maintaining policy and billing modules, ensuring high performance, scalability, and code quality in an agile environment. Hybrid work model with strong emphasis on backend architecture and system optimization. 🗂️ Requirements: Very good knowledge of insurance platform (policy or billing modules), Minimum 4 years experience with dedicated platform language, Minimum 5 years experience in Java/JEE, Experience with backend frameworks, Knowledge of relational databases (Oracle), Very good knowledge of SQL (min. 5 years), Experience with Git and Maven, Knowledge of OOP, functional and multithreaded programming, Experience with Docker, Kubernetes, Helm, Knowledge of event-driven architecture and REST, Experience with Kafka and Elasticsearch, Ability to scale applications, Experience in performance analysis and query optimization, Experience with Linux systems, Knowledge of application servers, Experience with CI/CD tools, Knowledge of DDD, TDD, BDD, Experience with microservices architecture 📃 Skills: Java, JEE, Spring, Hibernate, Oracle, SQL, Git, Maven, Docker, Kubernetes, Helm, Kafka, Elasticsearch, Linux, REST, DDD, TDD, BDD 🏢 Description: Senior Developer przy rozwoju systemów w modelu biznesowo-logicznej warstwy aplikacji. Tryb pracy: Hybrydowy (1 dzień w tygodniu z biura, 4 dni zdalnie) Zakres obowiązków: Projektowanie i implementacja rozwiązań w zespole pracującym w metodykach zwinnych Rozwój oraz utrzymanie systemów wspierających ubezpieczenia majątkowe (obsługa polis i rozliczeń) Współtworzenie zmian w istniejących systemach oraz rozwój nowych funkcjonalności Rozwijanie architektury mikrousługowej współpracującej z systemem monolitycznym Współudział w opracowywaniu koncepcji rozwiązań dla inicjatyw biznesowych Projektowanie i wdrażanie architektury nowych rozwiązań Zapewnienie wysokiej jakości oprogramowania oraz zgodności ze standardami Wsparcie stabilizacji i utrzymania wdrożonych rozwiązań Utrzymywanie oraz aktualizacja dokumentacji technicznej Wymagania obowiązkowe: Bardzo dobra znajomość platformy do obsługi systemów ubezpieczeniowych (moduły polis lub rozliczeń) Doświadczenie w pracy z dedykowanym językiem platformy (min. 4 lata) Min. 5 lat doświadczenia w programowaniu w Java / JEE Znajomość frameworków backendowych (np. Spring, Hibernate) Znajomość relacyjnych baz danych (w szczególności Oracle) Bardzo dobra znajomość SQL (min. 5 lat) Znajomość narzędzi do zarządzania kodem i budowania aplikacji (np. git, maven) Znajomość programowania obiektowego, funkcyjnego oraz wielowątkowego Doświadczenie w pracy z konteneryzacją i orkiestracją (Docker, Kubernetes, helm) Znajomość architektury opartej o zdarzenia oraz komunikacji REST Znajomość narzędzi do przetwarzania i wyszukiwania danych (np. Kafka, ElasticSearch) Umiejętność skalowania aplikacji Doświadczenie w analizie wydajności oraz optymalizacji zapytań i przechowywania danych Doświadczenie w pracy z systemami Linux Znajomość serwerów aplikacyjnych Doświadczenie z narzędziami CI/CD Znajomość koncepcji projektowych (DDD, TDD, BDD) oraz architektury mikrousługowej Mile widziane: Doświadczenie w wykorzystaniu narzędzi wspieranych sztuczną inteligencją w pracy programisty Wiedza z zakresu bezpieczeństwa IT Doświadczenie w samodzielnym projektowaniu domeny biznesowej Certyfikaty związane z wykorzystywaną platformą Znajomość TypeScript Doświadczenie w pracy z chmurą publiczną (Azure, GCP, AWS)

🏢 Summary: Senior .NET Backend developer role for a business-critical project focused on building, maintaining and optimizing backend solutions and system integrations. The consultant will design and implement REST services, ensure secure authentication/authorization, and maintain high code quality across development and operations. The position involves performance optimization, monitoring improvements, and close collaboration with architects and development teams. 🗂️ Requirements: Strong experience with .NET and C#, Experience developing REST APIs and integrations, Experience with OAuth2, OpenID Connect or JWT, Experience with authentication and authorization mechanisms, Experience handling JSON, XML and CSV formats, Focus on Clean Code and maintainable solutions, Experience with test automation and quality assurance, Experience with logging, monitoring and production troubleshooting, Experience with performance analysis and optimization 📃 Skills: .NET, C#, REST, OAuth2, OpenID, JWT, JSON, XML, CSV, CI/CD, Azure, Logging, Monitoring, Testing, Performance 🏢 Description: Senior .NET Backend Udvikler Opgaven På vegne af en af vores kunder søger vi en erfaren Senior .NET Backend Udvikler til et forretningskritisk udviklingsforløb. Konsulenten bliver en del af et udviklingsteam med ansvar for udvikling, vedligeholdelse og optimering af backend-løsninger samt integrationer til interne og eksterne systemer. Der søges en profil, der kan arbejde selvstændigt, bidrage til arkitektur- og designbeslutninger samt sikre høj kvalitet i leverancerne gennem hele udviklings- og driftsprocessen. Ansvarsområder Udvikling af backend-løsninger i .NET/C# Design og implementering af REST-baserede services og integrationer Arbejde med autentifikation, autorisation og token-baserede sikkerhedsløsninger Håndtering af forskellige filformater og dataudveksling mellem systemer Fokus på kodekvalitet, maintainability og best practices Implementering og forbedring af logging, monitorering og alarmering Test, fejlsøgning og performanceoptimering Bidrage til stabil drift og løbende forbedringer af eksisterende løsninger Samarbejde tæt med forretning, arkitekter og øvrige udviklingsteams Krav til kompetencer Skal-have Solid erfaring med .NET og C# Erfaring med udvikling af REST API’er og integrationer Erfaring med OAuth2, OpenID Connect, JWT eller tilsvarende teknologier Erfaring med autentifikation og autorisation Erfaring med håndtering af filformater som JSON, XML og CSV Fokus på kodekvalitet, Clean Code og maintainable løsninger Erfaring med testautomatisering og kvalitetssikring Erfaring med logging, monitorering og fejlsøgning i produktionsmiljøer Erfaring med performanceanalyse og optimering Flydende dansk i skrift og tale Fordelagtigt Erfaring med Azure-platformen Erfaring med CI/CD pipelines Erfaring fra finans-, pensions- eller forsikringsområdet Erfaring med observability-værktøjer og Application Monitoring Personlige kvalifikationer Selvstændig og proaktiv Struktureret og kvalitetsbevidst Stærke samarbejdsevner God til at kommunikere med både tekniske og forretningsmæssige interessenter Tager ansvar for opgaver fra analyse til implementering og drift Praktisk information Opstart: Hurtigst muligt Varighed: 3 måneder med mulighed for forlængelse Lokation: København Tilstedeværelse: Onsite minimum 5 dage om ugen

🏢 Summary: Senior Backend Engineer role focused on designing and scaling a high-throughput, event-driven platform. The position centers on building and optimizing large-scale event processing services and APIs in distributed systems. It involves solving complex scalability and reliability challenges in a massive-scale environment. 🗂️ Requirements: Senior-level experience in backend development, Strong Python expertise, Experience scaling message queue systems, Experience with distributed systems and microservices architecture, Proven track record building high-throughput backend services, Experience designing scalable and fault-tolerant systems, Ability to implement and optimize APIs 📃 Skills: Python, Azure, ServiceBus, StorageQueues, EventHubs, Microservices, DistributedSystems, APIs, EventDriven, EventSourcing, Streaming, Observability, Monitoring 🏢 Description: Location: Remote Type: Full-time Level: Senior Duration: 4 months Start: ASAP We are looking for an experienced Senior Backend Engineer to join a team responsible for building and scaling a high-throughput, event-driven platform operating at massive scale. Your primary focus will be the event processing backbone — designing, developing, and optimizing services that handle large volumes of messages reliably and efficiently. You will work closely with architects and other senior engineers to implement APIs that expose data and support advanced triage and processing workflows. This role is ideal for someone who enjoys solving hard scalability problems , working with distributed systems, and building resilient backend services that operate under real-world load. Responsibilities Design and build backend services responsible for large-scale event processing Optimize and scale message-based systems to handle high throughput and reliability requirements Implement APIs defined by system architects to expose data and collect processing results Collaborate with cross-functional teams to improve platform performance and resilience Contribute to architectural decisions around scalability, fault tolerance, and observability Core Skills Strong experience with Python as a primary backend language Deep expertise in scaling message queue systems (e.g. Azure Service Bus, Storage Queues, Event Hubs or similar) Solid understanding of microservices architecture and distributed systems Proven experience building high-throughput, resilient backend services Strong problem-solving skills and ability to work with complex systems Highly Desirable Experience with event-driven or event sourcing architectures Background in data processing frameworks or streaming systems Experience building platforms related to observability, monitoring, or large-scale event management Familiarity with designing systems for fault tolerance and graceful degradation What we offer Work on technically challenging systems operating at very large scale High level of autonomy and real influence on system architecture Collaboration with experienced engineers in a mature engineering environment Competitive compensation and flexible working model Project with strong technical ownership

🏢 Summary: 6-month contract role for a Senior Java Developer with 6–8 years of experience, focused on designing, developing, and maintaining scalable enterprise-level APIs and application systems. The position involves full SDLC participation, technical leadership, and collaboration in an Agile environment to deliver high-performance solutions. 🗂️ Requirements: 6-8 years experience in Java development, Strong knowledge of Core Java 1.8, Experience with J2EE, Experience with Spring framework, Experience with Hibernate, Experience with MySQL, Experience designing and developing RESTful APIs, Strong knowledge of SQL and relational databases, Experience with Maven or Gradle, Experience writing unit tests using JUnit and Mockito, Experience working in Agile environment, Ability to lead development cycle and conduct code reviews 📃 Skills: Java, J2EE, Spring, Hibernate, MySQL, PostgreSQL, SQL, REST, Maven, Gradle, JUnit, Mockito, Agile 🏢 Description: Designation: Senior Java Developer Years of Experience: 6 to 8  years Contract Duration: 6 Months Work Mode / Shift Timing: Normal Shift (9:00 AM – 6:00 PM) Senior Java Developer Skillset: Proven experience of at least 6-8 years in Java-based programming. Strong knowledge of Core Java (1.8), J2EE, Spring, Hibernate, and MySQL. Familiarity with RESTful API design and development. Solid understanding of relational databases (e.g., PostgreSQL, MySQL) and SQL. Familiarity with build tools such as Maven and Gradle. Excellent analytical and problem-solving skills. Strong experience in writing unit tests using JUnit and Mockito Responsibilities: Responsible for understanding the software requirements and developing it into a working source code accordingly. The overall objective of this role is to contribute to applications systems analysis and programming activities. Successful candidates will be strong developers who take ownership of his/her applications, demonstrate critical thinking in design, communicate clearly, and have a consistent track record of delivering and supporting scalable, high performance enterprise-level API. The implementation around enterprise systems require strong critical thinking skills, creative engineering balanced with high quality and customer focus.a The ideal candidate is one that is not only passionate about software development and software architecture but also focus on business needs and customer experience. The day-to-day work is interesting, challenging and fast-paced! Profile Required Work with business stakeholders, project managers, business analysts, and other IT teams to understand the business needs and their requirements. Work with a development team of software engineers and enterprise architects to ensure the solutions meet our business needs using Agile methodologies in a fast-paced environment. Will often require to take a lead role in the entire development cycle, conduct design and code reviews, and have a heavy input throughout the process, from requirements to production deployment. Create technical system specifications and ensure documentation remains current throughout all phases of the SDLC. Raise up opportunities, enhancements, and process improvements. Communicate timely status, including any potential risks/issues of the assignments to management. Research, design, define, develop, test, document and implement new service APIs or changes to existing services. Participate in test planning, development, and execution for integration and system testing. Learn new software tools and skills as needed. Keep up with technologies. Provide mentoring to other development staff on technical topics. Support and maintain applications utilizing required tools and technologies. Ensure applications are scalable and operate efficiently in the production environment. Must be self-motivated and take initiative

🏢 Summary: 6-month contract role for a Senior Java Developer to design, develop, and maintain scalable enterprise-level APIs and applications in a fast-paced Agile environment. The position involves full SDLC participation, technical leadership, and ensuring high-performance, production-ready systems. The role requires strong backend development expertise and hands-on experience with Java-based technologies. 🗂️ Requirements: 6-8 years experience in Java development, Strong knowledge of Core Java 1.8, Experience with J2EE, Experience with Spring framework, Experience with Hibernate, Experience with MySQL, Experience designing and developing RESTful APIs, Strong knowledge of SQL, Experience with PostgreSQL or other relational databases, Experience with Maven or Gradle, Experience writing unit tests using JUnit, Experience with Mockito, Experience in Agile environment, Ability to conduct code reviews, Experience with SDLC processes 📃 Skills: Java, J2EE, Spring, Hibernate, MySQL, PostgreSQL, SQL, REST, Maven, Gradle, JUnit, Mockito, Agile 🏢 Description: Designation: Senior Java Developer Years of Experience: 6 to 8  years Contract Duration: 6 Months Work Mode / Shift Timing: Normal Shift (9:00 AM – 6:00 PM) Senior Java Developer Skillset: Proven experience of at least 6-8 years in Java-based programming. Strong knowledge of Core Java (1.8), J2EE, Spring, Hibernate, and MySQL. Familiarity with RESTful API design and development. Solid understanding of relational databases (e.g., PostgreSQL, MySQL) and SQL. Familiarity with build tools such as Maven and Gradle. Excellent analytical and problem-solving skills. Strong experience in writing unit tests using JUnit and Mockito Responsibilities: Responsible for understanding the software requirements and developing it into a working source code accordingly. The overall objective of this role is to contribute to applications systems analysis and programming activities. Successful candidates will be strong developers who take ownership of his/her applications, demonstrate critical thinking in design, communicate clearly, and have a consistent track record of delivering and supporting scalable, high performance enterprise-level API. The implementation around enterprise systems require strong critical thinking skills, creative engineering balanced with high quality and customer focus.a The ideal candidate is one that is not only passionate about software development and software architecture but also focus on business needs and customer experience. The day-to-day work is interesting, challenging and fast-paced! Profile Required Work with business stakeholders, project managers, business analysts, and other IT teams to understand the business needs and their requirements. Work with a development team of software engineers and enterprise architects to ensure the solutions meet our business needs using Agile methodologies in a fast-paced environment. Will often require to take a lead role in the entire development cycle, conduct design and code reviews, and have a heavy input throughout the process, from requirements to production deployment. Create technical system specifications and ensure documentation remains current throughout all phases of the SDLC. Raise up opportunities, enhancements, and process improvements. Communicate timely status, including any potential risks/issues of the assignments to management. Research, design, define, develop, test, document and implement new service APIs or changes to existing services. Participate in test planning, development, and execution for integration and system testing. Learn new software tools and skills as needed. Keep up with technologies. Provide mentoring to other development staff on technical topics. Support and maintain applications utilizing required tools and technologies. Ensure applications are scalable and operate efficiently in the production environment. Must be self-motivated and take initiative

🏢 Summary: 6-month contract role for a Senior Java Developer responsible for designing, developing, and maintaining scalable enterprise-level APIs and applications. The position involves full SDLC participation, including system analysis, design, coding, testing, and deployment in an Agile environment. The developer will lead technical activities, ensure high-performance solutions, and support production systems. 🗂️ Requirements: 6–8 years of Java development experience, Strong knowledge of Core Java 1.8, Experience with J2EE, Experience with Spring framework, Experience with Hibernate, Proficiency in RESTful API design and development, Strong knowledge of SQL, Experience with relational databases, Experience with Maven or Gradle, Experience with JUnit and Mockito, Experience in Agile methodologies, Ability to design and develop scalable enterprise applications 📃 Skills: Java, J2EE, Spring, Hibernate, MySQL, PostgreSQL, SQL, REST, Maven, Gradle, JUnit, Mockito, Agile 🏢 Description: Designation: Senior Java Developer Years of Experience: 6 to 8  years Contract Duration: 6 Months Work Mode / Shift Timing: Normal Shift (9:00 AM – 6:00 PM) Senior Java Developer Skillset: Proven experience of at least 6-8 years in Java-based programming. Strong knowledge of Core Java (1.8), J2EE, Spring, Hibernate, and MySQL. Familiarity with RESTful API design and development. Solid understanding of relational databases (e.g., PostgreSQL, MySQL) and SQL. Familiarity with build tools such as Maven and Gradle. Excellent analytical and problem-solving skills. Strong experience in writing unit tests using JUnit and Mockito Responsibilities: Responsible for understanding the software requirements and developing it into a working source code accordingly. The overall objective of this role is to contribute to applications systems analysis and programming activities. Successful candidates will be strong developers who take ownership of his/her applications, demonstrate critical thinking in design, communicate clearly, and have a consistent track record of delivering and supporting scalable, high performance enterprise-level API. The implementation around enterprise systems require strong critical thinking skills, creative engineering balanced with high quality and customer focus.a The ideal candidate is one that is not only passionate about software development and software architecture but also focus on business needs and customer experience. The day-to-day work is interesting, challenging and fast-paced! Profile Required Work with business stakeholders, project managers, business analysts, and other IT teams to understand the business needs and their requirements. Work with a development team of software engineers and enterprise architects to ensure the solutions meet our business needs using Agile methodologies in a fast-paced environment. Will often require to take a lead role in the entire development cycle, conduct design and code reviews, and have a heavy input throughout the process, from requirements to production deployment. Create technical system specifications and ensure documentation remains current throughout all phases of the SDLC. Raise up opportunities, enhancements, and process improvements. Communicate timely status, including any potential risks/issues of the assignments to management. Research, design, define, develop, test, document and implement new service APIs or changes to existing services. Participate in test planning, development, and execution for integration and system testing. Learn new software tools and skills as needed. Keep up with technologies. Provide mentoring to other development staff on technical topics. Support and maintain applications utilizing required tools and technologies. Ensure applications are scalable and operate efficiently in the production environment. Must be self-motivated and take initiative

🏢 Summary: Senior Software Developer role focused on developing and maintaining a high-performance electronic trading platform, with responsibility for backend Core Java components and Level 3 production support. The position involves implementing new features, writing automated tests, and collaborating closely with trading teams to enhance platform design and performance. 🗂️ Requirements: 10+ years of Core Java development experience, Experience with trading platforms or real-time systems, Experience writing automated functional and performance tests using Cucumber, Ability to provide Level 3 production support on rotational schedule, Degree in Computer Science or Java certification 📃 Skills: Java, Spring, Cucumber, Solace, Oracle, REST, ION, ADO 🏢 Description: About the Role: We are looking for a Senior Software Developer to join a growing team focused on enhancing and maintaining a high -performance electronic trading platform. You will work on backend components, implement new features, and provide Level 3 production support on a rotational basis. The role offers direct collaboration with trading teams and opportunities to influence platform design and improvements. Responsibilities: Analyze, design, develop, and document Core Java server-side components Write automated functional and performance tests using Cucumber Provide L3 production support in a rotational schedule (mostly aligned with London business hours) Collaborate with a global team and trading stakeholders Must Have: 10+ years of experience with Core Java development Experience working on trading platforms or similar real-time systems Java certification preferred or a degree in Computer Science Strong communication skills and ability to work with business stakeholders Experience writing automated functional and performance tests with Cucumber Nice to Have: Knowledge of ION MarketView Java API Understanding of Fixed Income trading (Dealer-to-Client eTrading of Bonds) Experience with Spring Boot Familiarity with ADO pipelines for build and deployment Experience with REST APIs Technology Stack: Backend: Core Java, Spring Boot Messaging: Solace Database: Oracle

🏢 Summary: Senior Frontend Developer role focused on building, maintaining, and optimizing scalable web applications using modern frontend technologies. The position involves designing web architecture, integrating APIs, and supporting CI/CD processes to deliver high-performance user experiences. The role requires strong experience in React-based ecosystems and modern DevOps practices. 🗂️ Requirements: Minimum 5 years of experience in modern frontend technologies, Strong experience with ReactJS and NextJS, Proficiency in HTML, CSS, TypeScript, and JavaScript, Experience designing scalable web architecture, Solid knowledge of REST APIs, Experience with NodeJS and package managers, Experience with CI/CD pipelines and GitHub workflows, Proficient in Git version control, Experience creating technical documentation (e.g., Confluence), English proficiency at B2 level or higher 📃 Skills: ReactJS, NextJS, HTML, CSS, TypeScript, JavaScript, REST, NodeJS, CI/CD, GitHub, Git, Confluence, Azure, GraphQL, HeadlessCMS 🏢 Description: We are seeking a highly skilled and motivated Senior Frontend Developer to join our team. The ideal candidate will have a strong background in front-end coding, troubleshooting, and optimizing web applications. You will play a key role in developing and maintaining high-quality, scalable, and performant web solutions using modern technologies. This position requires a proactive individual with excellent problem-solving skills and a passion for delivering exceptional user experiences. Must-Have Qualifications to be successful for the role: Technical Skills: Develop and maintain web applications using ReactJS / NextJS . Implement responsive designs using HTML, CSS, Typescript, and JavaScript . Create and maintain technical documentation using tools like Confluence. Design and implement scalable web architecture and artifacts. Solid knowledge of REST APIs . Experience with NodeJS and package managers. Utilize DevOps skills, including CI/CD pipelines , GitHub workflows , and actions . Manage version control using GIT effectively. Soft Skills: Strong problem-solving and troubleshooting abilities. Excellent communication and collaboration skills to work effectively in a team environment. Attention to detail and a proactive approach to identifying and resolving issues. Ability to adapt to new technologies and learn quickly. Experience: Minimum 5 years of experience in modern Frontend technologies. English proficiency should be at least B2 level. Nice-to-Have Qualifications: Experience with Azure or other cloud platforms. Experience with GraphQL. Experience with Headless CMS (Content Management System) . Optimize web performance, focusing on Core Web Vitals. Other Details: Work model: 2 days per week in the office and 3 days at home. We offer a flexible work schedule that includes 12 additional Compensation Days besides regular holidays. Note that specific work hours may vary between winter and summer schedules, and the candidate will be required to submit their CV in English.

🏢 Summary: Senior Backend/Fullstack Developer role focused on maintaining and improving a large-scale enterprise application for municipal waste collection and environmental services. The position involves solving complex backend issues, optimizing performance, developing REST APIs, and modernizing legacy systems using C# and .NET technologies. The developer will work independently within an Agile environment and contribute to architecture, testing, and continuous improvement initiatives. 🗂️ Requirements: 8+ years of professional software development experience, Strong experience with C# and .NET, Experience with enterprise backend development, Experience debugging complex production systems, Experience with legacy and monolithic applications, Strong SQL skills, Experience with PostgreSQL or relational databases, Experience with Entity Framework or similar ORM, Experience designing and consuming REST APIs, Experience with Git, GitHub and CI/CD pipelines, Experience writing Unit Tests and Integration Tests, Understanding of Agile Scrum methodologies, Ability to work independently, English communication skills 📃 Skills: C#, .NET, ASP.NET, PostgreSQL, SQL, EntityFramework, REST, Git, GitHub, CI/CD, Scrum, UnitTesting, IntegrationTesting 🏢 Description: Summary: The role of Senior Backend/Fullstack Developer is crucial for the evolution, an enterprise application that aids municipalities in managing waste collection and environmental services. This role focuses on solving complex technical problems and improving existing software rather than just creating new applications. Responsibilities: Develop and maintain a large-scale enterprise application built with C# and .NET. Troubleshoot and resolve complex production issues across the platform. Analyse existing solutions and improve maintainability through refactoring. Improve application performance and optimise database queries. Develop backend services and REST APIs. Work with PostgreSQL using both raw SQL and Entity Framework. Contribute to architecture discussions and technical decision-making. Write clean, maintainable and well-tested code. Implement Unit Tests and Integration Tests. Participate actively in Scrum ceremonies, refinement sessions and technical discussions. Contribute to continuous improvement initiatives across the development lifecycle. Help identify opportunities to leverage AI-assisted software development tools to improve engineering efficiency. Key Requirements: 8+ years of professional software development experience. Strong experience with C# and .NET (both .NET Framework and modern .NET). Solid understanding of enterprise backend development. Extensive experience debugging complex production systems. Experience working with legacy and monolithic applications. Strong SQL skills, including writing, analysing and optimising raw SQL queries. Experience with PostgreSQL or other relational databases. Experience using Entity Framework or similar ORM technologies. Experience designing and consuming REST APIs. Experience with Git, GitHub and CI/CD pipelines. Experience writing Unit Tests and Integration Tests. Good understanding of Agile methodologies (Scrum). Ability to work independently and proactively. Excellent English communication skills. Nice to Have: Experience with waste management systems. Experience in public sector software. Knowledge of utilities or environmental platforms. Understanding of SOLID principles. Experience in software architecture. Skills in performance optimisation. Familiarity with security best practices. Knowledge of domain-driven design. Experience with GitHub Copilot and AI-assisted software development. Understanding of process optimisation. Experience in technical mentoring. Other Details: Technical Environment: Includes C#, .NET, ASP.NET, PostgreSQL, REST APIs, Git/GitHub, CI/CD. Initial Onboarding: In the first three months, the developer will learn the RenoWeb platform, work independently on bug fixes, and deliver small tasks, with expectations of becoming largely autonomous by the end of the onboarding period.