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As a Software Engineer, you will join a collaborative cross-functional team to design, develop, and maintain web applications using . NET Core and React. You will be mentored by senior developers and will gain hands-on experience in building scalable, secure, and high-performance systems while following modern engineering standards.<br><br>Key Responsibilities<br><br>Assist in developing new features for web and microservice-based applications Write clean, maintainable, and testable code under supervision Support integration with RESTful APIs and databases Collaborate with other developers, QA, and Dev Ops teams throughout the software lifecycle Participate in code reviews and learn from feedback to improve code quality Apply basic principles of software design and development best practices Work with frontend (React, Type Script) and backend (. NET Core, C#) technologies<br><br>Required Skills & Qualifications<br><br>Bachelor’s degree in Computer Science, Software Engineering, or a related field2 years of professional experience in software development Knowledge of C#, . NET Core, and ASP. NET Core Web APIBasic understanding of React, Type Script, and Java Script (ES6+) Familiarity with HTML5, CSS3, and responsive design Understanding of relational databases and SQL fundamentals Knowledge of object-oriented programming principles Eagerness to learn and grow in a collaborative environment Good problem-solving and analytical skills<br><br>Preferred Experience<br><br>Familiarity with Entity Framework Core or LINQBasic understanding of Git and version control workflows Awareness of Agile methodologies and software lifecycle concepts Exposure to Docker or CI/CD pipelines is a plus Interest in security and performance optimization concepts<br><br>Powered by Jazz HR<br><br>1otx8VO3pq

As a Senior Software Engineer, you will play a key role in designing, developing, and maintaining modern web applications and scalable microservices. You will work across both frontend (React, Type Script) and backend (. NET Core) technologies, contributing to performance, security, and maintainability. You will also mentor junior developers and promote engineering excellence within the team.<br><br>Key Responsibilities<br><br> Design, build, and maintain scalable, secure, and high-performance microservices, web applications, and APIs Develop new features and enhancements in both frontend (React) and backend (. NET Core) components Write clean, maintainable, and testable code following modern development best practices (SOLID, DRY, Clean Architecture) Apply software design patterns to create modular and extensible systems Integrate with RESTful and g RPC APIs, and develop new endpoints where needed Work with SQL Server, Postgre SQL, and Mongo DB databases Implement caching, queuing, and event-driven patterns using Redis and Rabbit MQ Ensure secure coding practices in authentication, authorization, and data protection Collaborate with QA engineers and Dev Ops throughout the software delivery lifecycle Participate in code reviews, pair programming, and design discussions Mentor junior developers and contribute to continuous improvement initiatives<br><br>Required Skills & Qualifications<br><br> Bachelor’s degree in Computer Science, Software Engineering, or a related field 3+ years of hands-on experience in software development using . NET Core and modern web technologies Strong experience in C# / . NET Core / ASP. NET Core Web API Solid knowledge of React, Type Script, Node.js, and modern Java Script (ES6+) Experience with HTML5, CSS3, and responsive web design Proficiency with SQL, ORM, Entity Framework Core, and LINQ Understanding of microservice architecture, RESTful API design, and Open API/Swagger documentation Experience with authentication and authorization mechanisms (OAuth2, Open ID Connect, JWT) Strong debugging and problem-solving skills across multiple system layers<br><br>Preferred Experience<br><br> Knowledge of software design patterns (Repository, Factory, Dependency Injection, CQRS, etc.) Experience integrating and consuming g RPC for inter-service communication Familiarity with Redis caching and Rabbit MQ messaging systems Hands-on experience with Git, Docker, and CI/CD pipelines (Git Hub Actions or Azure Dev Ops) Exposure to Hashi Corp Vault or similar secure secret management tools Experience in Agile software delivery environments Knowledge of unit and integration testing (x Unit, NUnit, Jest, etc.)<br><br>Powered by Jazz HR<br><br>COLKih SX45

<h2 class="h5">Job description</h2> <div class="t-break" data-jb-field="description"> <p>Decima International is a professional services company, providing project management and controls services to clients in the United States and the Middle East. Our mission is to become the premier professional services provider across all industry sectors we are engaged in. To accomplish this, Decima International’s founders established a simple yet powerful formula:</p><br><p>Approach each client engagement as a&amp;nbsp;<strong>partnership</strong>, create an environment that attracts the&amp;nbsp;<strong>most talented professionals</strong>&amp;nbsp;and allows them to flourish, and regulate&amp;nbsp;<strong>growth</strong>&amp;nbsp;to maintain&amp;nbsp;<strong>excellence</strong>&amp;nbsp;in our service standards.</p><br><br>Position Summary<p>Decima International is seeking an experienced <strong>Freelance Backend Developer</strong> to build and/or complete the backend functionality of the company website. The freelancer will work with the existing website design/frontend and internal stakeholders to deliver a reliable, secure, maintainable, and scalable backend.</p><br><p>The developer should be comfortable working independently, translating business requirements into technical solutions, integrating frontend components and third-party services, and taking ownership through deployment and handover.</p><br>Key Responsibilities<ul><li>Design and develop the website’s backend architecture.</li><li>Develop and maintain APIs required by the frontend.</li><li>Implement database structures and backend business logic.</li><li>Integrate contact forms, CMS functionality, email notifications, third-party APIs, or other website services as required.</li><li>Connect backend services with the existing frontend.</li><li>Ensure appropriate authentication, authorization, data validation, and website security.</li><li>Optimize backend performance, reliability, and scalability.</li><li>Configure development, staging, and production environments as needed.</li><li>Support cloud/server deployment.</li><li>Implement source control and an appropriate deployment/CI/CD process.</li><li>Troubleshoot backend and integration issues.</li><li>Test APIs and backend functionality before launch.</li><li>Produce clear technical documentation.</li><li>Complete code and credential handover to Decima International at project closure.</li><li>Provide post-launch support during an agreed warranty/support period.</li></ul>Required Qualifications<ul><li>Strong professional backend/software development experience.</li><li>Demonstrated experience developing <strong>REST APIs / Web APIs</strong>.</li><li>Experience developing production web applications.</li><li>Strong understanding of databases and backend architecture.</li><li>Experience integrating frontend applications with backend services.</li><li>Familiarity with cloud deployment, preferably AWS, Azure, or equivalent.</li><li>Working knowledge of Git, Docker, deployment processes, and basic CI/CD.</li><li>Understanding of secure coding practices, performance optimization, and maintainability.</li><li>Ability to work independently against milestones and deadlines.</li><li>Strong English communication and technical documentation skills.</li></ul><p><strong>Preferred:</strong> ASP.NET Core/C# or Python/Django/Flask experience; prior corporate website projects; CMS integration; experience taking a website from development through production deployment.</p><br>Freelancer Deliverables<p>A successful engagement should result in a fully functioning backend, completed frontend/backend integration, deployed production environment, tested APIs and forms, source-code handover, technical documentation, access/credential handover, and a defined post-launch support period.</p><br><p>&amp;nbsp;</p><br><p>Decima International is an Equal Opportunity Employer that is committed to the safety and well-being of all. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law.</p><br><br> </div>

<p>About the Role We are looking for a Senior Software Developer who uses AI tools as a core part of the development process to build high-quality, production-ready software quickly and efficiently. The ideal candidate combines strong software engineering fundamentals with hands-on experience in AI-assisted development, RAG, GraphRAG, graph databases, and LLM integrations. Key Responsibilities Design and develop scalable web applications, APIs, and AI-powered solutions. Use tools such as Cursor, Windsurf, GitHub Copilot, ChatGPT, and Claude in daily development. Build and optimize RAG, GraphRAG, knowledge graph, and semantic search solutions. Integrate LLMs with enterprise systems and data sources. Review, test, and improve AI-generated code. Contribute to automated testing, CI/CD, and deployment processes. Collaborate with cross-functional teams and support AI-assisted engineering best practices.</p><p><strong>Desired Candidate Profile</strong></p><p>Requirements 5+ years of professional software development experience. Strong proficiency in C#, Python, TypeScript/JavaScript, Java, or Go. Experience building and deploying production web applications and APIs. Hands-on experience with graph databases such as Neo4j, Amazon Neptune, GraphDB, or Memgraph. Strong experience with RAG solutions and LLM integrations. Solid knowledge of REST APIs, SQL and NoSQL databases, Git, Docker, and cloud platforms. Strong problem-solving, system design, and communication skills. Preferred Experience GraphRAG and knowledge graphs Vector databases such as Qdrant, Pinecone, Weaviate, Milvus, or pgvector LangChain, LangGraph, CrewAI, AutoGen, or Semantic Kernel Next.js, React, FastAPI, ASP.NET Core, or Node.js PostgreSQL, Redis, Kubernetes, and Terraform Azure OpenAI, AWS Bedrock, Google Vertex AI, or Azure AI Foundry</p>