Back End Developer - Node /Java

Role: Backend - Node / Java.

Experience: 5+ Years

Location: BNG

JD:

The Mission: Engineering the Agentic Finance Engine

We are architecting the real-time, cognitive infrastructure that allows financial data to

self-reconcile across distributed environments through agentic systems.

The industry is reaching a tipping point: shifting from static records to autonomous, agentic

systems. We are building the specialized middleware—combining high-performance system

languages and low-latency event buses—to make this transition possible.

We aren't looking for feature-builders; we are looking for the architects who want to build the

agentic backbone of this new ecosystem. The foundation is being laid now. If you prefer solving

deep consistency and concurrency problems of autonomous systems, this is the environment

you've been looking for.

Core Responsibilities

● System Architecture: Design and implement high-performance, distributed backend

services using Node.js and Java, ensuring low latency and high availability across the

stack.

● Data Strategy & Management: Architect and maintain a polyglot data environment,

strategically utilizing PostgreSQL for relational integrity and MongoDB for flexible,

high-volume document storage.

● Event-Driven Workflows: Build and optimize asynchronous communication layers

using message brokers like NATS or Kafka to manage complex, real-time data flows

between services.

● Infrastructure & Deployment: Manage and scale containerized environments using

Docker and Kubernetes, leveraging Terraform for Infrastructure-as-Code (IaC) to

ensure reproducible cloud environments.

● API & Integration Design: Develop robust, secure RESTful and GraphQL APIs, while

integrating third-party services for billing, authentication, and specialized data

processing.

● Security & Compliance: Implement rigorous security protocols, including encryption at

rest/transit and advanced Role-Based Access Control (RBAC), prioritizing data privacy

and system auditability.

● Performance Tuning: Conduct deep-dive bottleneck analysis and query optimization to

ensure the backend scales efficiently under heavy concurrent loads.

Technical Qualifications

● Senior-Level Expertise: 5+ years of professional experience in backend development,

with mastery of Node.js (TypeScript) and Java (Spring Boot).

● Database Mastery: Advanced proficiency in SQL (PostgreSQL) and NoSQL

(MongoDB), including schema design, indexing strategies, and performance

optimization for both.

● Distributed Systems Knowledge: Strong understanding of event-driven architectures,

microservices patterns, and message-oriented middleware (NATS, RabbitMQ, or Kafka).

● Cloud Native Background: Proven experience deploying and managing production

workloads on major cloud providers (DigitalOcean, AWS, or GCP) using Docker and

orchestration tools.

● DevOps Proficiency: Hands-on experience with CI/CD pipelines and automated

infrastructure management via Terraform.

● Code Integrity: A disciplined approach to testing (Unit, Integration, E2E) and a

commitment to writing clean, maintainable, and well-documented code.

● Problem Solving: Demonstrated ability to troubleshoot complex concurrency issues,

race conditions, and distributed data consistency challenges