Senior Web Application Developer - Python / Java / Golang

Description :

We are looking for an experienced Senior Web Application Developer with strong expertise in Python and solid working knowledge of Java or Go. You will play a key role in designing and developing scalable, data-driven, and AI-enabled applications for our AdTech and SaaS platforms. This role is hands-on, focusing on system design, backend engineering, and modern data / AI workflows, while also mentoring junior :

• Design, develop, and maintain Python-based backend services, APIs, and data pipelines.
• Contribute to system architecture and low-level design (LLD) for assigned modules.
• Build and optimize ETL workflows (Airflow, dbt, or custom pipelines) for data ingestion and transformation.
• Work with search systems, including vector search engines (Elasticsearch, OpenSearch, Pinecone, Weaviate, Milvus, FAISS).
• Implement caching strategies (Redis, Memcached) to improve performance.
• Integrate with pub / sub messaging systems (Kafka, RabbitMQ) for distributed and event-driven processing.
• Collaborate with product managers, architects, and QA engineers to deliver robust solutions.
• Mentor junior developers through code reviews, pair programming, and knowledge sharing.
• Explore and contribute to the adoption of LLMs, AI agents, and agentic workflows for intelligent automation.
• Follow best practices for CI / CD, testing, and containerization :
• Strong expertise in Python for backend systems, data pipelines, or AI integration.
• Hands-on experience with Java or Go for microservices.
• Proficiency in REST API design and microservices architecture.
• Experience with ETL flows and data pipeline development (Airflow, dbt, Luigi, etc.).
• Practical exposure to search systems (Elasticsearch, Solr, OpenSearch) and vector search engines (Pinecone, Milvus, Weaviate, FAISS).
• Solid experience with RDBMS (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis, Cassandra).
• Understanding of caching systems (Redis, Memcached).
• Experience with pub / sub systems (Kafka, RabbitMQ).
• Strong grasp of low-level design, distributed systems basics, concurrency, and performance optimization.
• Familiarity with LLMs, AI agents, and modern AI development frameworks (LangChain, LlamaIndex, Haystack).
• Version control and DevOps exposure (Git, CI / CD, Docker, :
• Prior exposure to the AdTech domain (campaign management, attribution, real-time bidding).
• Experience with multi-tenant SaaS platforms.
• Knowledge of Python-based AI / ML workflows or model deployment.
• Familiarity with frontend frameworks Cloud development experience on AWS, GCP, or Azure.
• Understanding of observability frameworks (Prometheus, Grafana, ELK, OpenTelemetry).

(ref : hirist.tech)