Senior Backend Developer (Crypto / Blockchain)

Borderless; Bengaluru; On-site; INR 1,500,000 - 2,000,000; Full time

Benefits offered by this job

Global impact in investing

Supportive team environment

Dynamic startup culture

Innovative growth opportunities

Job summary

Borderless is seeking a Senior Backend Engineer to architect and scale critical backend systems. This role involves designing high-performance APIs, improving system resilience, and leading technical decisions in a dynamic fintech environment.

The ideal candidate will possess strong backend engineering experience, especially in high-transaction systems, and familiarity with cloud infrastructures like AWS and GCP. Join us to help revolutionize global investing in Asia, the Middle East, and India!

Qualifications

• 6–8 years of backend engineering experience with 2+ years leading critical systems.
• Deep understanding of distributed systems and system design.
• Experience in building high-transaction, low-latency systems.

Responsibilities

• Design and own scalable backend architecture.
• Build high-performance APIs handling real-money transactions.
• Lead system design discussions and technical decisions.

Skills

Backend engineering

System design

Database optimization

AWS

Google Cloud

Crypto/blockchain infrastructure

Tools

Node.js

Python

PostgreSQL

MongoDB

Docker

Kafka

RabbitMQ

Job description

Borderless empowers individuals in India, the Middle East, and South‑East Asia to globalize their wealth effortlessly. Our all‑in‑one platform lets you save and make payments globally while investing in the U.S., ensuring your money moves without limits. With Borderless, you can easily open and manage U.S. investment accounts. Our big data‑driven insights help you track your portfolio, make smarter decisions, and uncover new opportunities—without drowning in complex research.

Beyond investing, Borderless offers a 4‑in‑1 financial solution:

• Multi‑Currency Account – Save and hold funds in multiple currencies worldwide.
• Investment Platform – Invest exclusively in U.S. markets.
• Hedge Funds – Access exclusive U.S. investment opportunities.
• Borderless Payments – Transfer money seamlessly across borders.

Backed by industry veterans, Borderless delivers a seamless, secure, and powerful financial experience for HNIs and retail investors alike. Our blockchain‑powered Easy Remit rails make cross‑border transfers faster, more transparent, and significantly more cost‑efficient.

Role Overview

We’re looking for a Senior Backend Engineer who can architect, build, and scale critical backend systems. You’ll work on high‑throughput financial workflows, third‑party integrations, and transaction‑heavy systems – potentially including crypto/blockchain rails as we expand. This is not a “ticket‑closing” role. This is a systems‑thinking, architecture‑owning role.

What You’ll Do

• Design and own scalable backend architecture
• Build high-performance APIs handling real‑money transactions
• Lead system design discussions and technical decisions
• Architect reliable integrations with financial institutions, brokers, payment partners, and crypto/blockchain providers
• Improve system resilience, observability, and fault tolerance
• Optimize databases and reduce latency across services
• Establish engineering best practices and mentor junior engineers
• Handle production incidents and drive long‑term fixes

Tech Stack

• Backend – Node.js with Python for select services.
• Frameworks – Express.js and FastAPI for scalable APIs.
• Databases – PostgreSQL, MongoDB, Redis for caching and performance.
• Message Queues – Kafka and RabbitMQ for asynchronous and event‑driven workflows.
• Infrastructure – AWS (EC2, RDS, S3, Lambda, IAM, VPC) and GCP; Docker and CI/CD pipelines.
• API Standards – REST, Webhooks, async callbacks.
• Security – OAuth2, JWT, encryption at rest and in transit.

Requirements

What We’re Looking For

• 6–8 years of strong backend engineering experience with 2+ years leading architecture or owning critical systems
• Deep understanding of distributed systems and system design
• Experience building high‑transaction, low‑latency systems
• Strong experience with database optimization and scaling
• Production experience with AWS and Google Cloud infrastructure
• Experience in crypto / blockchain / digital assets infrastructure is highly preferred

Domain Knowledge (Highly Preferred)

• Crypto / blockchain infrastructure
• Wallet architecture (custodial or non‑custodial)
• On‑chain vs off‑chain transaction workflows
• Stablecoins, token transfers, gas mechanics
• Banking rails (ACH, SWIFT, RTGS, SEPA)
• Understanding of compliance‑sensitive systems (KYC/AML flows)

Leadership & Ownership

• Strong technical decision‑making skills
• Ability to balance speed vs. system safety
• Comfortable operating in high‑accountability environments
• Clear communicator with product and business stakeholders

Benefits

• A Global Impact: You’ll help people across Asia, the Middle East, and India unlock global investing opportunities.
• A Supportive Team: Work with smart, passionate colleagues who are as committed to your growth as you are to theirs.
• Exciting Growth: Be part of an innovative platform that’s changing how people invest globally – every day brings new opportunities!
• A Fun Environment: Work hard, play hard, and enjoy the dynamic culture of a startup that’s pushing the boundaries in fintech!