You will get backend API bugs fixed professionally
Project details
I will diagnose and fix backend application issues across Java Spring Boot, Go, Rust, Node.js, NestJS, and Python FastAPI. This service covers API errors, authentication problems, database bugs, configuration issues, integration failures, and performance concerns.
You will receive clean, maintainable source-code fixes, testing of the affected functionality, and a clear explanation of the root cause and solution. Each package is based on the number and complexity of issues. New feature development or complete application creation requires a separate project.
You will receive clean, maintainable source-code fixes, testing of the affected functionality, and a clear explanation of the root cause and solution. Each package is based on the number and complexity of issues. New feature development or complete application creation requires a separate project.
Programming Languages
Python, Java, GoCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$75
|
Standard
$225
|
Advanced
$550
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Pressnave
Senior Backend Engineer | Microservices | AI/ML
Dubai, United Arab Emirates - 6:34 am local time
My core strength is end-to-end system engineering—from backend API development and distributed systems design to AI integration, DevOps automation, and delivering complete product solutions. I bring a deep technical background in Java (Spring Boot), Python (FastAPI), TypeScript (NestJS), Go, C++, and modern cloud platforms (AWS, GCP, Azure). I design solutions using Clean Architecture, DDD, event-driven design, CQRS, and reactive systems, ensuring long-term scalability and maintainability.
I have strong hands-on experience in building intelligent applications with Generative AI, LLM integration, RAG pipelines, embeddings, vector databases, LangChain, LangGraph, and agentic workflows. I develop custom AI microservices for retrieval-augmented generation, document understanding, customer support automation, spam/KYC validation, code generation, and enterprise-grade conversational agents. I optimize LLM costs and latency using caching, batching, token-aware prompting, and vLLM/Ollama self-hosting when required.
On the backend side, I architect robust microservices with Spring Boot, NestJS, FastAPI, and Go, integrating PostgreSQL, MySQL, Redis, MongoDB, Kafka, RabbitMQ, Redis Streams, and Elasticsearch. I design systems that handle real-time communication (WebSockets), notifications, distributed scheduling, workflow automation, and high-volume data processing with optimized indexes, caching, and concurrency controls.
I am experienced in DevOps and MLOps, building CI/CD pipelines, containerizing systems with Docker, orchestrating deployments with Kubernetes (GKE, EKS, AKS), and setting up observability with Prometheus, Grafana, ELK, and distributed tracing. I use Terraform and Helm for infrastructure provisioning and MLflow and Kubeflow for model lifecycle management.
I help clients not only build software but also shape product strategy, architecture decisions, and technology roadmaps. My focus is on delivering measurable business value through performance optimization, secure architectures, rapid development, and quality engineering.
What I Can Build For You
✅ Scalable backend APIs & enterprise microservices
✅AI chatbots, RAG systems, NLP pipelines, and LLM integrations
✅Vector database pipelines (pgvector, Pinecone, Weaviate, Redis)
✅Real-time systems (chat, bidding, notifications, IoT streams)
✅Search engines & ranking systems using Elasticsearch
✅Workflow automation engines with message brokers
✅Full-stack applications using React/Next.js/Angular
✅Cloud-native deployments on AWS, GCP, Azure
✅End-to-end DevOps pipelines and Kubernetes deployments
Why Clients Prefer Working With Me
✅Strong communication + business understanding
✅Production-grade coding standards with clean documentation
✅Fast turnaround and milestone-based delivery
✅Ability to lead entire architecture from scratch
✅100% commitment to quality, timelines, and reliability
✅Transparent collaboration, proactive problem-solving
If you’re looking for a backend expert or AI system architect who can turn complex ideas into scalable, high-performance systems — I’m here to help you build it the right way.
Let’s build something impactful.
Steps for completing your project
After purchasing the project, send requirements so Pressnave can start the project.
Delivery time starts when Pressnave receives requirements from you.
Pressnave works on your project following the steps below.
Revisions may occur after the delivery date.
Review the issue and project setup
I will review the reported issue, source code, logs, framework, environment, and reproduction steps to understand the problem.
Reproduce and diagnose the bug
I will reproduce the issue where possible and identify the root cause in the application, API, database, configuration, or integration.