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Salhe S.

Addis Ababa, Ethiopia

$15/hr
5.0
5 jobs

I'm Backend Developer specializing in Java Spring Boot,Golang and Node.js additional Automation and AI Integration with Microservices architecture. I design and build scalable, secure backend services and APIs for fintech, banking,, research, and enterprise platforms using Java,Golang , Node.js, SQL, and AWS. I bring 4+ Years of hands-on experience delivering production-grade backend systems, high-performance microservices, event-driven architectures, and high-availability REST APIs. My work spans market intelligence platforms, core banking and payment integrations, multi-telco USSD applications , AI-powered backend pipelines and n8n specialist. ๐Ÿ”‘ Core Focus: Backend Development โ€ข Java Developer โ€ข Spring Boot Microservices โ€ข Golang Backend โ€ข Node.js Backend โ€ข REST API Development โ€ข AWS Backend โ€ข Fintech Systems ๐Ÿ’ผ Backend & Microservices Expertise โ€ข Java Developer (Spring Boot, REST APIs, Microservices) โ€ข Distributed systems and event-driven architecture โ€ข Backend system design for fintech, banking, and enterprise platforms โ€ข Secure authentication and authorization (OAuth2, JWT, Keycloak) โ€ข Complex API integrations (banking, telecom, payment systems) โ€ข Frontend: React, Nextjs and Svelte, Tailwind CSS, Vite... โš™๏ธ Cloud, DevOps & Reliability โ€ข AWS (ECS/Fargate, SQS, S3, EC2, ECR) โ€ข Docker and Kubernetes โ€ข CI/CD pipelines (GitHub Actions, Jenkins, Bitbucket Pipelines) โ€ข Monitoring and reliability engineering (Prometheus, Grafana, SLO/SLI) ๐Ÿค– AI & Data Processing (Backend-Focused) โ€ข AI-powered compliance and data-processing pipelines โ€ข Vector search using PostgreSQL (pgvector) โ€ข Prompt-based rule engines and OpenAI-compatible API integrations ๐Ÿ—„ Databases & Messaging โ€ข SQL: MySQL, PostgreSQL, SQL Server โ€ข NoSQL: MongoDB โ€ข Messaging: Kafka, ActiveMq, AWS SQS โ€ข Automation: n8n -Also Have Frontend Experience in React ,Nextjs and Svelte 5 I actively work as a Backend Developer on Java Spring Boot microservices ,Golang and Node.js APIs, and partner with clients who value clean architecture, scalable systems, clear communication, and fast, reliable delivery.

  • Spring Boot
  • Apache Camel
  • Golang
  • Microservice
  • ExpressJS
  • PostgreSQL
  • GraphQL
  • Flutter
  • AWS Cloud9
  • Tailwind CSS
  • DevOps
  • React
  • MongoDB
  • NGINX
  • AWS Lambda
Zehao J.

Qingdao, China

$25/hr
5.0
7 jobs

โœ… 6+ Years of Java Development Experience โšก Full-Cycle Backend Development & Architecture โšก AI-Powered Development for Faster Delivery & Better Code Quality ๐Ÿ‘€ Click Invite or Hire for Scalable Java Backend Solutions Looking for a Java Developer who can build scalable backend systems, SaaS platforms, enterprise applications, and cloud-native solutions designed for long-term growth? For 6+ years, I have hands-on experience taking multiple backend systems from zero to production โ€” covering API design, database modeling, AI/LLM integration, payment systems, and server deployment end-to-end. My primary stack is Java and Spring Boot, with a strong focus on building systems that are clean, maintainable, and ready to scale. What I can do for you: ๐๐š๐œ๐ค๐ž๐ง๐ ๐€๐๐ˆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ | Java ยท Spring Boot ยท Spring MVC ยท Spring Security ยท JWT ยท Design and build RESTful APIs from scratch ยท Implement authentication & authorization (JWT, Spring Security, role-based access control) ยท Structure business logic that is clean, testable, and maintainable ๐€๐ˆ & ๐‹๐‹๐Œ ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง | Claude API ยท OpenAI ยท Prompt Engineering ยท Integrate Claude or OpenAI into real product workflows โ€” not just demos ยท Build multi-turn dialogue flows and connect model outputs to backend logic ยท AI-powered automation pipelines and event-driven AI workflows ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž ๐ƒ๐ž๐ฌ๐ข๐ ๐ง & ๐Œ๐š๐ง๐š๐ ๐ž๐ฆ๐ž๐ง๐ญ | PostgreSQL ยท MySQL ยท Redis ยท Spring Data JPA ยท Qdrant ยท Design schemas and data models from scratch ยท Write complex queries and handle migrations ยท Performance optimization and caching with Redis ยท Vector database setup and operations โ€” storing embeddings, similarity search, and retrieval pipelines (Qdrant) ๐๐š๐ฒ๐ฆ๐ž๐ง๐ญ & ๐’๐ฎ๐›๐ฌ๐œ๐ซ๐ข๐ฉ๐ญ๐ข๐จ๐ง ๐’๐ฒ๐ฌ๐ญ๐ž๐ฆ๐ฌ | Stripe Connect ยท Webhook ยท Integrate Stripe โ€” subscription tiers, billing cycles, webhook event handling ยท Build payout logic and third-party payment flows ๐’๐ž๐ซ๐ฏ๐ž๐ซ ๐ƒ๐ž๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐ž๐ง๐ญ & ๐ƒ๐ž๐ฏ๐Ž๐ฉ๐ฌ | DigitalOcean ยท Docker ยท Nginx ยท CI/CD ยท Linux ยท Set up and manage production environments ยท Docker containerization, Nginx reverse proxy, SSL, CI/CD pipelines ๐“๐ก๐ข๐ซ๐-๐ฉ๐š๐ซ๐ญ๐ฒ & ๐–๐ž๐›๐ก๐จ๐จ๐ค ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง | FCM ยท APNs ยท OAuth ยท REST ยท Connect backend to external services via REST APIs or webhooks ยท Push notifications (FCM / APNs), OAuth, event-driven automation ๐…๐ซ๐จ๐ง๐ญ๐ž๐ง๐ ๐‚๐จ๐ฅ๐ฅ๐š๐›๐จ๐ซ๐š๐ญ๐ข๐จ๐ง | Vue3 ยท Nuxt.js ยท TypeScript ยท Tailwind CSS ยท Work alongside frontend teams or handle supporting frontend work independently ยท Define API contracts, handle CORS, integrate backend services end-to-end I communicate clearly, deliver on schedule, and am comfortable working independently from requirements through to deployment. Feel free to reach out with your project.

  • Spring Boot
  • Java
  • Spring Framework
  • Spring Data
  • Auth0
  • Rust
  • MyBatis
  • Database
  • PostgreSQL
  • MySQL
  • Thymeleaf
  • JavaScript
  • React
  • Nuxt.js
  • Vue.js
Narottam S.

Gurgaon, India

$40/hr
4.3
61 jobs

I am a Senior Solution Architect and hands-on Full-Stack Engineer with 13+ years of experience helping startups and enterprises transform business requirements into scalable, secure, cloud-native, and AI-enabled applications. My core expertise is Java, Spring Boot, Microservices, AWS, and enterprise architecture, complemented by modern technologies including React, Next.js, Angular, Node.js, NestJS, FastAPI, and Python. I can support the complete software lifecycle: Requirements โ†’ Solutioning โ†’ Architecture โ†’ Technology Selection โ†’ Development โ†’ Cloud โ†’ Production Solution Architecture & Solutioning: I translate business and technical requirements into practical, scalable solutions, covering: Solution and System Architecture: - Technology Stack Selection - API and Integration Design - Database Architecture - Cloud Architecture - Scalability and Performance Planning - Security and Reliability - Application Modernization - Technical Feasibility and Roadmap I select the technology stack based on the business problem, scalability, performance, security, budget, timeline, and long-term product roadmap. Java & Enterprise Development: - Java 8โ€“21 - Spring Boot: Spring AOP, Spring Cloud, Spring Security, Spring Data JPA, Spring Batch - Micronaut - REST and gRPC - Microservices - Event-Driven Architecture - Apache Kafka - RabbitMQ - AWS SQS - Reactive Programming Modern Full-Stack Development: - MERN โ€” MongoDB, Express.js, React, Node.js - MEAN โ€” MongoDB, Express.js, Angular, Node.js - React.js / Next.js - Angular / Vue.js - Node.js / NestJS / Express.js - Python / FastAPI / Django - TypeScript / JavaScript - PostgreSQL / MySQL / MongoDB / Redis / DynamoDB Application Modernization: I help organizations modernize legacy applications and improve scalability, maintainability, security, and developer productivity. Typical modernization initiatives include: - Legacy Java โ†’ Spring Boot - Legacy UI โ†’ React / Angular / Next.js - Monolith โ†’ Modular Monolith / Microservices - On-Premise โ†’ AWS - Traditional Applications โ†’ Cloud-Native Architecture - Legacy APIs โ†’ REST / gRPC - Manual Deployment โ†’ CI/CD - Existing Applications โ†’ AI-enabled Applications AWS & Cloud-Native: Strong hands-on experience with AWS services including: EC2, ECS, EKS, Fargate, Lambda, API Gateway, S3, RDS, DynamoDB, SQS, SNS, EventBridge, CloudWatch, IAM, VPC Infrastructure and DevOps: Docker, Kubernetes, Terraform, CloudFormation, AWS CDK, Jenkins, GitHub Actions, GitLab CI/CD AI-Enabled Applications I help integrate AI into real-world business applications using: - Amazon Bedrock - LangChain - LangGraph - LangSmith - RAG - MCP - Agentic AI - CrewAI - Vector Databases - pgvector - ChromaDB - n8n Use cases include AI Assistants, Enterprise Search, RAG, Document Intelligence, AI Agents, Workflow Automation, and Decision Support. I use AI to accelerate development and automate workflows while keeping critical business decisions under appropriate human control. Security, Observability & Testing: Security: OAuth 2.0, JWT, SSO, RBAC, LDAP, OWASP Observability: Datadog, Prometheus, Micrometer, Grafana, Elasticsearch, OpenSearch, Kibana, New Relic Testing: Playwright, Selenium, Cypress, Appium, REST Assured, Postman, Testcontainers, WireMock, JMeter, k6 Domain Experience Fintech, Finance, Healthcare, Insurance, Manufacturing, Telecom, E-commerce, Recruitment, SaaS, and Enterprise Applications. Whether you need a Solution Architect, Java/Spring Boot Architect, Full-Stack Engineer, AWS Architect, Technical Lead, or AI Application Architect, I can help take your project from requirements to production.

  • Architectural Design
  • Java
  • Spring Framework
  • Spring Boot
  • Micronaut
  • Node.js
  • NestJS Development
  • Microservice
  • Cypress
  • Selenium WebDriver
  • Appium
  • Cucumber
  • Test Automation Framework
  • Apache Kafka
  • AI Development
  • AI Agent Development
  • AI Model Integration
  • DevOps Engineering
  • AWS Development
Yash P.

Jaipur, India

$20/hr
4.2
1 jobs

โญ ๐—ง๐—ฒ๐—ฐ๐—ต๐—ป๐—ถ๐—ฐ๐—ฎ๐—น ๐—ฆ๐—ธ๐—ถ๐—น๐—น๐˜€ โœ“ Programming Languages: Java, Kotlin โœ“ Databases/Storage: PostgreSQL, MySQL, MongoDB, Redis โœ“ Software Patterns: Microservice, Monolithic โœ“ Services: Java Spring Boot, Spring Security, Spring Data JPA, Spring web flux, Websockets, MVC, Keycloak, AWS Cognito โœ“ Inter-Service Communication: Http (Synchronous), Kafka, RabbitMQ (Asynchronous) โœ“ Testing Tools: JUnit, Mockito, Spring Test Framework, Selenium, Cucumber โœ“ Logging and Monitoring: AWS cloud watch, SLF4J โœ“ Others: Github, Gitlab, Bitbucket (Version Control), Docker (Containerization), AWS S3 Bucket (Storage Service), Jenkins, Kubernetes (CI/CD), AWS, Azure (Cloud Services), Spring Tool Suite, Intellij Idea, Visual Studio Code (IDE Tools). ๐Ÿ“ˆ ๐— ๐—ฎ๐—ท๐—ผ๐—ฟ ๐—ฃ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜๐˜€: 1. Auggit: โœ“ Description: End-to-end automated accounting cloud solution features include eDMS where Accountants/Managers/Auditors can work together seamlessly from anywhere, integrating with different accounting and ERP solutions for example. tally, SAP, etc. OCR integration with invoices that enables direct entry to Accounting software with minimum human intervention. โœ“ Responsibilities: โ€ข Managing and leading the Team to ensure sure timely delivery of solutions and sprints โ€ข Developed technical requirements in the Java, and Spring Boot custom applications. Perform unit and end-to-end tests. โ€ข To have an automated way to create and manage the document versions through Tally, SAP and many other accounting tools. โ€ข Development of Groovy/Java scripts for Automation โ€ข Took care of CI/CD implementation and was always on top of Indra costing. โœ“ Team Size: 10 โœ“ Technology: Java, Spring Boot, Spring Rest APIs, Spring Security, JMS, RabbitMQ, JUnit, Jira, Selenium, Jenkins, AWS, AWS Incognito, Tally, SAP, Docker, React JS, HTML, CSS, Git, GitHub Actions 2. Apica: โœ“ Description: Apicaโ€™s active monitoring platform is used by global organizations to solve the most complex digital performance issues in todayโ€™s multi-cloud, hybrid and on-premises environments. Apica delivers its scalable monitoring and detailed insights across any location, device, app, or authentication. Our SaaS platform reduces friction and time to resolution for cloud migrations and applications. โœ“ Responsibilities: โ€ข Responsible for Organizing Scrum meetings and backlog management โ€ข Responsible for feature development, design discussion, maintenance and bug fixes in the applications. โ€ข Working on the New platform services layer and authorization/authentication solution. โ€ข Develop high-quality, clean, and maintainable code. โ€ข Develop and maintain unit tests to ensure code reliability. โ€ข Provide mentorship to junior developers and foster their growth. โ€ข Dockerizing services to test applications after containerization. โ€ข Worked on confluence - Assigned user personal space and assisted in Archiving pages and spaces. โœ“ Team Size: 5 โœ“ Technology: Java, Spring Boot, Spring Security, PostgreSQL, OPA, OPAL, Docker, JMS, RabbitMQ, AWS for CI/CD, Keycloak, SonarCloud, VueJS, GitHub Actions, Confluence, Event-Driven Programming using Spring Webflux, Spring Actuator

  • Java
  • Kotlin
  • Spring Boot
  • MySQL
  • PostgreSQL
  • MongoDB
  • Redis
  • Microservice
  • Spring Security
  • Kubernetes
  • Docker
  • GitHub
  • Amazon Web Services
  • Microsoft Azure
  • Google Cloud Platform
Vu H.

Hanoi, Vietnam

$10/hr
5.0
10 jobs

Senior Fullstack Software Engineer | Java, Node.js, React | CMS & IoT Expert ๐Ÿš€ About Me I am a Senior Fullstack Software Engineer with 4+ years of experience in developing high-performance web applications, CMS platforms, and IoT solutions. My expertise spans across Java Spring Boot, Node.js, React, Magnolia CMS, and cloud-based architectures. I have led teams, optimized complex systems, and built scalable solutions for enterprise-level clients. ๐Ÿ”น Backend: Java Spring Boot, Node.js, NestJS, Microservices, GRPC ๐Ÿ”น Frontend: React.js, React Native, Headless CMS ๐Ÿ”น CMS: Magnolia CMS, Liferay, WordPress ๐Ÿ”น Databases: MySQL, MongoDB, SQL Server ๐Ÿ”น DevOps & Cloud: Docker, Kubernetes, GitLab CI/CD, AWS ๐Ÿ”น IoT & AI: Zigbee, MQTT, OpenCV, AI-based detection systems ๐Ÿ’ผ Notable Projects โœ… MMPโ€™s CMS Website: Built a Java Spring Boot-based CMS optimized for high traffic and large datasets. โœ… Dentsuโ€™s Headless CMS: Developed a scalable API-driven CMS using Magnolia CMS and React. โœ… Yoolife & YooIOC Applications: Smart city applications for residential and operational management. โœ… IoT Platform for Smart Devices: Developed a gateway integrating Zigbee, Z-Wave, and BLE devices with AI-powered event detection. ๐Ÿ” Why Work With Me? โœ” Proven expertise in enterprise CMS solutions & IoT systems โœ” Strong problem-solving skills in system architecture & optimization โœ” Experience leading development teams & mentoring junior engineers โœ” Passionate about building scalable, high-performance applications Letโ€™s connect and bring your ideas to life! ๐Ÿš€

  • Ecommerce
  • Ecommerce Website
  • AWS IoT Core
  • Spring Boot
  • NestJS Development
  • Java
  • Embedded Linux
  • React
  • React Native
Hamza K.

Clementon, New Jersey

$60/hr
5.0
3 jobs

Full Stack Java Development | Python Backend | ETL Pipelines | SQL Optimization | Hadoop | Spark | Snowflake | dbt | Enterprise Systems Iโ€™m a ๐—จ๐—ฆโ€‘๐—ฏ๐—ฎ๐˜€๐—ฒ๐—ฑ ๐—ฆ๐—ฒ๐—ป๐—ถ๐—ผ๐—ฟ ๐—๐—ฎ๐˜ƒ๐—ฎ ๐—•๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ ๐—ฎ๐—ป๐—ฑ ๐——๐—ฎ๐˜๐—ฎ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ /๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜€๐˜ with ๐Ÿต+ ๐˜†๐—ฒ๐—ฎ๐—ฟ๐˜€ ๐—ผ๐—ณ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ building and scaling enterprise systems for Fortune 500 companies, including ๐—๐—ฃ๐— ๐—ผ๐—ฟ๐—ด๐—ฎ๐—ป ๐—–๐—ต๐—ฎ๐˜€๐—ฒ, ๐—™๐—ผ๐—ฟ๐—ฑ ๐— ๐—ผ๐˜๐—ผ๐—ฟ ๐—–๐—ผ๐—บ๐—ฝ๐—ฎ๐—ป๐˜†, ๐—ฎ๐—ป๐—ฑ ๐—๐—ฒ๐˜๐—•๐—น๐˜‚๐—ฒ. My work focuses on backend engineering, distributed data pipelines, and modernizing systems that need to perform reliably under real production load. Iโ€™ve spent my career designing backend architectures that stay fast, stable, and costโ€‘efficient as they grow. Whether itโ€™s a Java microservice that needs to scale, a Python backend that needs to be productionโ€‘ready, or a data pipeline that has to process millions of records without breaking, this is the work I do every day. ๐—›๐—ผ๐˜„ ๐—œ ๐—›๐—ฒ๐—น๐—ฝ ๐—ง๐—ฒ๐—ฎ๐—บ๐˜€: ๐—๐—ฎ๐˜ƒ๐—ฎ ๐—˜๐—ป๐˜๐—ฒ๐—ฟ๐—ฝ๐—ฟ๐—ถ๐˜€๐—ฒ ๐—”๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฅ๐—˜๐—ฆ๐—ง ๐—”๐—ฃ๐—œ๐˜€: If your backend is slow, fragile, or stuck inside a monolith, I fix that. I work with Spring Boot, Spring MVC, Spring Security, JWT authentication, GraphQL, and microservices. I modernize legacy Java codebases, break apart monoliths, and build APIs that stay reliable when traffic spikes. ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป ๐—•๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ ๐—ฎ๐—ป๐—ฑ ๐—™๐—ฎ๐˜€๐˜๐—”๐—ฃ๐—œ ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€: I build Python services using FastAPI, SQLAlchemy, asyncio, and Pydantic. Iโ€™ve delivered async microservices, automation workflows, and data processing jobs used in production at Ford and JetBlue. ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—”๐—ฟ๐—ฐ๐—ต๐—ถ๐˜๐—ฒ๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—œ๐—ป๐—ณ๐—ฟ๐—ฎ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ: I design and deploy production environments on GCP, AWS, and Azure. Iโ€™ve built systems using Cloud Run, Pub/Sub, Dataflow, BigQuery, GKE, Lambda, S3, Redshift, Glue, and EKS. I use Terraform for infrastructure as code and set up CI/CD pipelines for clean deployments. ๐——๐—ฎ๐˜๐—ฎ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—˜๐—ง๐—Ÿ ๐—ฃ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ๐˜€: If your pipelines are brittle, slow, or producing outdated data, I rebuild them. I work with Apache Beam, Spark, Airflow, Kafka, dbt, Snowflake, and BigQuery. At Ford, I replaced a sixโ€‘hour Hadoop batch job with a Dataflow streaming pipeline that finished in under ten minutes. ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ ๐——๐—ฒ๐˜€๐—ถ๐—ด๐—ป ๐—ฎ๐—ป๐—ฑ ๐—ฃ๐—ฒ๐—ฟ๐—ณ๐—ผ๐—ฟ๐—บ๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—ข๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: I tune SQL queries, redesign schemas, and optimize databases at scale. Iโ€™ve worked with PostgreSQL, SQL Server, MongoDB, MySQL, Redshift, Snowflake, and BigQuery. ๐—Ÿ๐—ฒ๐—ด๐—ฎ๐—ฐ๐˜† ๐—ฆ๐˜†๐˜€๐˜๐—ฒ๐—บ ๐— ๐—ผ๐—ฑ๐—ฒ๐—ฟ๐—ป๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: I migrate old systems without disrupting what already works. Iโ€™ve moved slow stored procedures into Spark and Hive, improving execution time across distributed file systems. ๐—”๐—ฃ๐—œ ๐—œ๐—ป๐˜๐—ฒ๐—ด๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€: I build reliable integrations with thirdโ€‘party APIs, handling authentication, pagination, rate limits, retries, and logging. Iโ€™ve worked with payment gateways, SaaS platforms, IoT systems, and enterprise data sources. ๐—ง๐—ฒ๐—ฐ๐—ต๐—ป๐—ถ๐—ฐ๐—ฎ๐—น ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ: ๐—•๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜: Java (8, 11, 17), Python, Spring Boot, Spring Security, Microservices, REST APIs, GraphQL, Swagger/OpenAPI ๐——๐—ฎ๐˜๐—ฎ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด: Spark, Hadoop, Beam, Hive, Airflow, Spring Batch, Data Ingestion Pipelines ๐—–๐—น๐—ผ๐˜‚๐—ฑ: GCP (Cloud Run, BigQuery, GKE), AWS (Lambda, S3, Redshift, EKS), Azure ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€: PostgreSQL, SQL Server, MongoDB, MySQL, Redis, Snowflake ๐——๐—ฒ๐˜ƒ๐—ข๐—ฝ๐˜€: Terraform, Kubernetes, Docker, CI/CD (GitHub Actions, Jenkins, Tekton) ๐— ๐—ผ๐—ป๐—ถ๐˜๐—ผ๐—ฟ๐—ถ๐—ป๐—ด: Grafana, Splunk, Cloud Monitoring The Right Fit: I work best with teams that need a senior engineer who can take ownership of complex backend or data engineering problems. If youโ€™re building on GCP, AWS, or Azure and need someone who has worked in those environments at scale, I can help. I communicate clearly, deliver on time, and bring the same standards I used at Ford and JPMorgan. ๐—œ๐—ณ ๐˜†๐—ผ๐˜‚โ€™๐—ฟ๐—ฒ ๐—ฟ๐—ฒ๐—ฎ๐—ฑ๐˜† ๐˜๐—ผ ๐—ถ๐—บ๐—ฝ๐—ฟ๐—ผ๐˜ƒ๐—ฒ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฏ๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ ๐—ฝ๐—ฒ๐—ฟ๐—ณ๐—ผ๐—ฟ๐—บ๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—ผ๐—ฟ ๐—ฏ๐˜‚๐—ถ๐—น๐—ฑ ๐—ฎ ๐˜€๐—ฐ๐—ฎ๐—น๐—ฎ๐—ฏ๐—น๐—ฒ ๐—ฑ๐—ฎ๐˜๐—ฎ ๐—ฝ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ, ๐˜€๐—ฒ๐—ป๐—ฑ ๐—บ๐—ฒ ๐—ฎ ๐—บ๐—ฒ๐˜€๐˜€๐—ฎ๐—ด๐—ฒ ๐—ผ๐—ฟ ๐—ฐ๐—น๐—ถ๐—ฐ๐—ธ โ€œ๐—œ๐—ป๐˜ƒ๐—ถ๐˜๐—ฒ ๐˜๐—ผ ๐—๐—ผ๐—ฏโ€ ๐˜๐—ผ ๐—ด๐—ฒ๐˜ ๐˜€๐˜๐—ฎ๐—ฟ๐˜๐—ฒ๐—ฑ. Spring Boot, Java Backend, SaaS Development, REST API, Microservices, AWS, Scalable Applications, SaaS Architecture, Platform Engineering, Distributed Systems, Event-Driven Architecture, Cloud-Native Development, Enterprise APIs, Multi-Tenant SaaS, AI Integrations, Kubernetes, Docker, Kafka, DevOps, System Design, Scalable Infrastructure, High Availability Systems, Fintech, Healthcare Platforms, Senior Data Engineer, Backend Engineer, Data Platform Engineer, Data Pipeline Development, ETL Development, ELT, Data Architecture, Data Engineering, Data Warehousing, Analytics Engineering, Big Data, Data Integration, Data Modeling, Database Design, Database Management, PostgreSQL, MySQL, MongoDB, Redis, SQL, Python

  • Data Engineering
  • Java
  • Google Cloud Platform
  • Spring Boot
  • Apache Hadoop
  • ETL Pipeline
  • Data Migration
  • Apache Airflow
  • Big Data
  • Data Warehousing & ETL Software
  • Data Integration
  • Python
  • REST API
  • Amazon Web Services
  • API Integration
  • Snowflake
  • dbt
  • Data Analysis
  • SQL

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What does a CryEngine developer do?

A cryengine developer builds interactive gameplay systems and extends the CRYENGINE Sandbox editor using C++ code and visual scripting tools. This role bridges the gap between raw engine capabilities and playable game mechanics by writing native plugins and configuring logic nodes. You translate design requirements into functional code that runs within the CRYENGINE environment, ensuring that assets behave correctly during real-time iteration. Your work directly shapes how players interact with the game world through custom entities and event-driven sequences.

  • Implement gameplay logic and level events by constructing Flow Graphs, which are visual scripts saved as XML files that control in-game triggers and responses without requiring constant recompilation of C++ code.
  • Develop and register native C++ entities and components within the Sandbox editor, exposing public variables and properties that allow designers to configure reusable gameplay objects and systems through the user interface.
  • Create custom Sandbox editor extensions and tools by building Qt-based C++ plugins that add new windows, menus, or workflows to the editor, streamlining the content creation process for artists and level designers.
  • Construct complex gameplay behaviors using Schematyc, a node-based visual scripting system, to define entity interactions and state machines that integrate seamlessly with the underlying C++ engine architecture.
  • Configure source control integration within the Sandbox editor settings to manage asset versions and collaborate with team members using Perforce or Git, ensuring that code and binary changes remain synchronized across the project.

How to hire a CryEngine developer on Upwork

Step 1: Post a job

Define your gameplay systems and editor extension needs clearly to attract qualified candidates. Use the Job Post Generator powered by Umaโ„ข, Upwork's Mindful AI to draft a precise description in seconds. Describe your project requirements in a few sentences, and Uma constructs a tailored post for this role. You can write a new post, update a saved draft, or reuse an existing post to save time.

  • Specify whether the work involves C++ Sandbox plugins, Flow Graph logic, or Schematyc entity creation so applicants know which technical path to highlight.
  • List required deliverables such as native component registration, visual scripting graphs, or Qt-based editor UI extensions to set clear expectations.
  • Mention your source control setup, such as Perforce or Git integration within the Sandbox editor, to ensure candidates understand your team workflow.

Step 2: Evaluate candidates

Look for portfolios that demonstrate shipped gameplay mechanics or custom editor tools built within CRYENGINE. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you assess technical fit quickly.

  • Review code samples or videos showing Flow Graph implementations that handle complex level events and game logic without performance drops.
  • Check for evidence of Schematyc building blocks that allow designers to configure reusable gameplay objects without touching code.
  • Verify experience with Sandbox C++ plugin structures by asking for examples of custom editor windows or tools they have authored.

Step 3: Interview your top choices

Discuss specific technical challenges related to engine architecture and designer collaboration during your interviews. Schedule and conduct these conversations within Upwork Messages, which generates an immediate transcript and summary after each session.

  • Ask how they expose native entities to the editor and manage public variables for designer access in Schematyc.
  • Explore their approach to debugging visual scripts and optimizing C++ code for real-time iteration in the Sandbox editor.
  • Discuss their experience configuring VCS settings in the Sandbox to prevent asset conflicts during team collaboration.

Step 4: Agree on scope and begin work

Define milestones for specific deliverables like exported .xml graphs or compiled plugin binaries before starting. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.

  • Set clear acceptance criteria for Flow Graph exports and Schematyc entity behaviors to ensure gameplay logic functions as intended.
  • Agree on a schedule for submitting C++ plugin code and integrating it with the main branch via your chosen version control system.
  • Establish regular check-ins to review editor tool functionality and verify that new components register correctly in the engine.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring a CryEngine developer cost?

$500-$1,500 per project is a typical range for focused CryEngine developer work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

Flow Graph logic implementation

$500-$1,200/project

Entry-level to mid-level
  • XML files defining level events and game triggers
  • Connected visual scripts within the Sandbox editor
  • Notes on graph structure and trigger conditions

Schematyc entity creation

$1,200-$2,500/project

Mid-level
  • Node-based gameplay objects with exposed properties
  • Configurable parameters for non-programmer team members
  • Tested interactions between new entities and existing systems

Native component registration

$2,500-$4,500/project

Mid-level to senior-level
  • Registered engine components visible in the editor
  • Data fields accessible for designer configuration
  • Compiled binaries ready for engine integration

Sandbox editor plugin development

$4,500-$7,000/project

Senior-level
  • Custom editor windows and tool panels
  • C++ source extending Sandbox editor functionality
  • Steps for compiling and loading the plugin

Full gameplay system architecture

$7,000-$12,000/project

Expert-level
  • Architecture document for complex gameplay mechanics
  • Integrated C++ and visual scripting systems
  • Source control settings for team collaboration

Frequently asked questions

Is hiring a CryEngine developer worth it?

For most businesses, yes: hiring a CryEngine developer is worthwhile. These specialists build complex gameplay systems using C++ and visual scripting tools like Flow Graph and Schematyc. They extend the Sandbox editor with custom plugins to support designer workflows.

How do I evaluate CryEngine developer candidates?

Review their experience with CRYENGINE Sandbox Editor and specific deliverables like Flow Graphs or Schematyc entities. Ask candidates to explain how they registered native components so designers could configure properties in the editor.

What tools does a CryEngine developer use?

A CryEngine developer uses the CRYENGINE Sandbox Editor, Flow Graph for level logic, and Schematyc for node-based visual scripting. They also write C++ code for Sandbox plugins and configure source control integration within the editor.

Can a CryEngine developer customize the editor interface?

Yes, they build C++ Sandbox plugins to add new tools or windows to the editor interface. This work often involves Qt-based UI development to create custom extensions for your team.