Dev Kumar Maan

Software Engineer

Delhi, Delhi, India10 mos experience

Key Highlights

Expert in building scalable distributed systems.
Led migration of legacy systems to modern microservices.
Achieved <2s latency for real-time telemetry across 300K devices.

Stackforce AI infers this person is a Backend Engineer specializing in Fintech with expertise in scalable distributed systems.

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Skills

Core Skills

JavaMicroservicesGolang

Other Skills

Spring BootREST APIsReactive Spring BootUser Access ManagementAutomationX.509 certificatesgRPCOpenTelemetryPrometheusGrafanaDockerKubernetesEngineeringSoftware DevelopmentSoftware Industry

About

Backend engineer focused on building scalable distributed systems. At Pine Labs, I’ve worked on high-scale merchant platforms and device infrastructure, including: • Systems handling 300K+ POS devices with real-time telemetry (<2s latency) • Distributed onboarding platform replacing Salesforce, improving reliability and reducing manual effort by 40% • Secure device authentication using Golang and X.509 certificates I work across Java, Spring Boot, and Golang to design microservices, event-driven systems, and observability pipelines. Interested in solving problems around system design, scalability, and reliability at scale.

Experience

10 mos

Total Experience

10 mos

Average Tenure

10 mos

Current Experience

Pine labs

2 roles

Software Engineer

Aug 2025 – Present · 10 mos · On-site

Architected and deployed high-performance REST APIs, ensuring secure and efficient communication between
services, improving operational efficiency and merchant onboarding.
Led efforts in building an internal microservices-based merchant onboarding platform to replace Salesforce,
using Reactive Spring Boot tailored for Pine Labs’ workflows.
Migrated and integrated the legacy UAM (User Access Management) from Salesforce to the internal onboarding
system, ensuring seamless user authentication and role-based access control in production.
Developed and implemented the PayByLink feature, enabling customers to complete transactions via online
payment gateways when not carrying physical cards at merchant outlets.
Integrated existing Salesforce modules specific to Pine Labs’ merchant operations (including BPCL and Petroleum
workflows) into the new internal onboarding platform, ensuring feature parity and system continuity.
Designed a modular, event-driven architecture to reduce third-party dependency and improve maintainability.
Reduced manual onboarding effort by approximately 40% through automation and microservice modularization.

JavaSpring BootMicroservicesREST APIsReactive Spring BootUser Access Management+1

Software Engineer Intern

Jan 2025 – Aug 2025 · 7 mos · On-site

Engineered an authentication provisioning system for POS devices using Golang and X.509 certificates, en
abling secure device authentication and encrypted communication across distributed networks.
Developed a Golang-based Terminal Metrics Collector App with gRPC streaming services, transmitting
telemetry data to OpenTelemetry and integrating with Prometheus and Grafana for real-time observability.
Optimized data serialization and streaming efficiency using Protocol Buffers, reducing gRPC payload size by
20% and enhancing data throughput for high-frequency telemetry events.
Designed and implemented a merchant store terminal system by building a Spring Boot-based backend, ex
posing RESTful APIs for seamless frontend integration during merchant onboarding.
Built and optimized a production-grade telemetry pipeline for over 300K+ POS devices, achieving <2s latency
and near-zero data loss for 24×7 device monitoring.
Collaborated with DevOps teams to containerize and deploy microservices using Docker and Kubernetes, en
suring high availability with 99.9% uptime.
Partnered with QA and Product teams to rapidly iterate on feature enhancements, perform regression testing,
and ensure reliable production rollouts.