Rust Engineer – Payment Infrastructure

iServeU Technology Pvt. ltd.; Khordha; On-site; INR 1,100,000 - 1,700,000; Full time

Job summary

iServeU Technology Pvt. ltd. in Bhubaneswar, India is hiring a Rust Engineer to join the PaymentHub and orchestration platform team.

You will work on core transaction processing, routing, and provider integrations to ensure reliable, scalable payments across channels. The role demands 3–6 years of backend Rust production experience, strong PostgreSQL/Redis skills, and proficiency with Linux, networking, and distributed systems.

Qualifications

• 3–6 years of backend engineering with professional Rust experience in production.
• Solid command of ownership and borrowing, lifetimes, traits and generics, error handling, memory management, and async/concurrent Rust.
• Experience building REST APIs or distributed services, and sound database fundamentals (PostgreSQL, Cassandra and Redis) preferred: transactions, isolation, indexing, query tuning).
• Good grasp of Linux and networking (TCP, HTTP/TLS, DNS, timeouts, connection pooling).
• Strong debugging and problem-solving skills, and the habit of reasoning about failure modes first.

Responsibilities

• Own core payment services: high-throughput, low-latency processing, authorization/capture, refunds and reversals in Rust.
• Routing and decision engine: configurable routing rules, success-rate based selection, retries across gateways.
• Provider connectors: adapters and abstraction layers that hide provider APIs, auth schemes, response formats and error codes.
• Transaction state machines: explicit, auditable lifecycle management that stays correct under timeouts and partial failures.
• Idempotency and consistency: duplicate-request handling and idempotent distributed operations.
• Async and event-driven pipelines: webhook delivery, reconciliation feeds and background workflows on queues/streams.
• Internal and merchant-facing APIs used by merchants, internal teams and payment providers.

Skills

Rust

Ownership

Async Rust

Performance

Debugging

Networking

Tools

Tokio

Axum

Actix-web

Docker

Kubernetes

GCP

AWS

OpenTelemetry

Prometheus

Grafana

Job description

iServeU Technology Pvt. ltd. | Full time

Rust Engineer – Payment Infrastructure

Bhubaneswar, India | Posted on 08/10/2026

iServeU is a modern banking infrastructure provider in APAC region, empowering financial enterprises with embedded fintech solutions for their customers. iServeU is one of the few certified partners with National Payment Corporation of India (NPCI), VISA for various products.

iServeU also provides a cloud-native, micro services-enabled, distributed platform with over 5000 possible product configurations with a lowcode/no code interface to banks, NBFCs, Fintech, and other regulated entities.

We process around 2500 transactions per second by leveraging distributed & auto scale technology like K8.

Our core platform combines of 1200+ micro services.

Our customer list includes Fintech start-ups, top tier private banks to PSU bank. We operate in five countries and help customers constantly change the way financial institutions operate and innovate.

Our solutions currently empowers over 20 banks and 250+ enterprises across India and abroad.

Our platform seamlessly manages the entire transaction lifecycle, including withdrawals, deposits, transfers, payments, and lending through various channels like digital, branch, agents.

Our team of 500+ employees, with over 80% in technology roles is spread across offices in Bhubaneswar, Bangalore and Delhi. We have raised $8 million in funding to support our growth and innovation.

We are building a high-performance PaymentHub and orchestration platform that connects merchants with multiple payment gateways, processors and acquirers. As a Rust Engineer, you will work on the core systems behind it: transaction processing and routing, gateway integrations, asynchronous workflows and production reliability. You own problems end-to-end instead of working on isolated modules.

What You WillOwn

Core payment services: high-throughput, low-latency transaction processing, authorization/capture, refunds and reversals in Rust.

Routing and decision engine: configurable routing rules, success-rate based selection, fallback and cascading retries across gateways and acquirers.

Provider connectors: adapters and abstraction layers that hide provider-specific APIs, auth schemes, response formats and error codes.

Transaction state machines: explicit, auditable lifecycle management that stays correct under timeouts, duplicate callbacks and partial failures.

Idempotency and consistency: duplicate-request handling and idempotent distributed operations that never double-charge or double-refund.

Async and event-driven pipelines: webhook delivery, reconciliation feeds and background workflows on queues/streams.

Internal and merchant-facing APIs used by merchants, internal teams and payment providers.

ProductionOwnership

• Own features across the full cycle: design, development, testing, deployment, monitoring and debugging in production.
• Run root-cause analysis for latency spikes, transaction failures and incidents, and ship permanent fixes instead of patching symptoms.
• Profile and optimize CPU, memory, I/O, network and database usage; remove bottlenecks before they become outages.
• Build observability into everything you ship: structured logs, metrics and traces tied to transaction IDs.

Requirements

What You Bring(Must-Have)

3–6 years of backend engineering with professional Rust experience in production.

Solid command of ownership and borrowing, lifetimes, traits and generics, error handling, memory management, and async/concurrent Rust.

Experience building REST APIs or distributed services, and sound database fundamentals ( PostgreSQL ,Cassandra and Redis preferred: transactions, isolation, indexing, query tuning).

Good grasp of Linux and networking (TCP, HTTP/TLS, DNS, timeouts, connection pooling).

Strong debugging and problem-solving skills, and the habit of reasoning about failure modes first.

Good to Have(Tech)

Tokio, Axum or Actix-web

Docker and Kubernetes; GCP or AWS

OpenTelemetry, Prometheus, Grafana, distributed tracing

Go or Python for tooling and integrations is an added advantage

Open-source contributions or performance write-ups

Good to Have (Payments)

Payment gateways, orchestration and acquirers

Webhooks and reconciliation

Idempotency and retry design

You Will Thrive If You

• Think deeply about the problemrather than only implementing the ticket.
• Are comfortable working closeto the infrastructure and the metal when needed.
• Care about correctness andreliability when money is moving.
• Enjoy chasing down a hardproduction bug to its root cause.
• Learn unfamiliar parts of a system quickly and take ownership.