Senior Elixir/Phoenix Engineer

Appscrip; Bengaluru; On-site; INR 1,500,000 - 3,000,000; Full time

Benefits offered by this job

Competitive salary

Job summary

Appscrip is seeking a backend engineer to fortify our Elixir-based real-time engine, enhancing reliability and building features across chat, live-stream, calling infra, sockets, and campaign orchestration workflows.

You will design and maintain Elixir/Phoenix services, optimize MQTT-based pipelines, work with PostgreSQL/CitusDB and MongoDB, and scale systems with Kubernetes while collaborating with AI, front-end, and DevOps teams to ship features quickly.

Qualifications

• 3-8 years of backend development, with at least 2+ years in Elixir/Phoenix.
• Strong understanding of OTP, GenServers, PubSub, Channels, distributed systems.
• Experience with real-time messaging protocols - MQTT.
• Hands-on experience with PostgreSQL / CitusDB and MongoDB.
• Solid exposure to Docker & Kubernetes for large-scale deployments.
• Experience with event-driven architectures, microservices, or high-concurrency systems.
• Comfortable working in a fast-paced startup-style environment.

Responsibilities

• Build & maintain Elixir/Phoenix services that power chat, calling, streaming, and campaign execution.
• Optimize real-time communication pipelines using MQTT (preferred) or similar protocols.
• Work with distributed databases - CitusDB (PostgreSQL extension) and MongoDB including schema design, query optimization, and performance tuning.
• Improve system scalability through clustering, message queues, supervision trees, and concurrent processing patterns in Elixir/OTP.
• Manage Kubernetes deployments - CI/CD pipelines, scaling strategies, monitoring & observability.
• Collaborate with AI, front-end, and DevOps teams to ship features rapidly.
• Debug production issues, implement fail-safe mechanisms, and ensure uptime of mission-critical systems.
• Write clean, well-tested code and participate in code reviews & architectural discussions.

Skills

Elixir/Phoenix

OTP

GenServers

PubSub

Channels

Distributed systems

Real-time messaging

Startup environment

MQTT

Event-driven architectures

High concurrency

Tools

Docker

Kubernetes

PostgreSQL

CitusDB

MongoDB

Job description

Role Overview :

You will be a key contributor responsible for enhancing our Elixir-based real-time engine, improving system reliability, and building new features across chat, live-stream, calling infra, sockets, and campaign orchestration workflows.

Key Responsibilities :

• Build & maintain Elixir/Phoenix services that power chat, calling, streaming, and campaign execution.
• Optimize real-time communication pipelines using MQTT (preferred) or similar protocols.
• Work with distributed databases - CitusDB (PostgreSQL extension) and MongoDB including schema design, query optimization, and performance tuning.
• Improve system scalability through clustering, message queues, supervision trees, and concurrent processing patterns in Elixir/OTP.
• Manage Kubernetes deployments - CI/CD pipelines, scaling strategies, monitoring & observability.
• Collaborate with AI, front-end, and DevOps teams to ship features rapidly.
• Debug production issues, implement fail-safe mechanisms, and ensure uptime of mission-critical systems.
• Write clean, well-tested code and participate in code reviews & architectural discussions.

Required Skills & Experience :

• 3-8 years of backend development, with at least 2+ years in Elixir/Phoenix.
• Strong understanding of OTP, GenServers, PubSub, Channels, distributed systems.
• Experience with real-time messaging protocols - ideally MQTT.
• Hands-on experience with PostgreSQL / CitusDB and MongoDB.
• Solid exposure to Docker & Kubernetes for large-scale deployments.
• Experience with event-driven architectures, microservices, or high-concurrency systems.
• Comfortable working in a fast-paced startup-style environment.

Nice to Have :

• Experience with WebRTC, SIP, or telephony/calling infrastructure.
• Experience managing high throughput messaging systems at scale.
• Familiarity with observability stacks (Prometheus, Grafana, OpenTelemetry).
• Contributions to open-source Elixir libraries.

What We Offer :

• Opportunity to work on one of the most advanced AI orchestration platforms.
• Ownership of core real-time systems powering thousands of concurrent users.
• A collaborative environment with engineering-first culture.
• Competitive salary