Senior Backend Engineer – Infrastructure, AI/FinTech

Bolder Apps

Senior Backend Engineer architecting secure systems for AI-powered FinTech clients in a hybrid role. Define infrastructure strategy on AWS and ensure high-performance and compliance for sensitive financial data.

Posted 7/9/2026full-timeUzbekistan • 🇺🇿 UzbekistanSeniorWebsite

Tech Stack

Tools & technologies

AWSERPPostgres

About the role

Key responsibilities & impact

Define and own the high-level infrastructure strategy on AWS — uptime, scalability, and performance are your metrics
Architect secure, resilient backend workflows capable of supporting enterprise-level client deployments on a platform handling sensitive financial data
Implement and enforce security frameworks across all system layers — encryption, network isolation, access controls, compliance boundaries
Design and lock down secure data flows between MCP servers and third-party ERP integrations
Own the Postgres infrastructure — schema design, query optimization, scaling strategy, and backup integrity
Integrate directly into the client engineering team with full support from Bolder's design, DevOps, and QA network

Requirements

What you’ll need

Senior backend track record. You've architected distributed, enterprise-grade backend systems in production — not prototypes, not internal tools. You can point to something that ran at scale, stayed up, and handled real data without incident.
Deep AWS expertise. You provision, scale, and secure infrastructure in AWS hands-on. VPCs, IAM, ECS or EKS, RDS, Secrets Manager, CloudWatch — you've used them in anger, not just in tutorials. You know what the AWS Well-Architected Framework says and where to deviate from it.
PostgreSQL at scale. Expert-level fluency with Postgres — schema design, indexing strategy, query optimization, migrations, connection pooling, replication. You don't write queries you haven't profiled.
Security specialist. Secure communication protocols, data encryption at rest and in transit, network isolation, multi-server environment management. In a FinTech context, you treat security as architecture, not an afterthought bolted on before launch.
MCP and integration security. You understand how Model Context Protocol servers communicate and where the attack surface lives. You've thought about securing LLM-to-system boundaries, not just API-to-API ones.
AI and data integration fluency. Exposure to LLM orchestration pipelines, automated code generation systems, or ERP data sync tooling. You don't need to have built a custom LLM harness, but you need to understand what's happening inside one well enough to secure it.
Proactive communicator. You flag infrastructure risks before they become incidents. You document decisions. You don't go quiet between check-ins and resurface with surprises.

Benefits

Comp & perks

Fully remote
Target start date of early August 2026 — defined scope, no ambiguity on timing
Direct access to engineering leadership with no PM layers between you and the decisions
Tooling budget for infrastructure, security tooling, and monitoring
A peer network of senior engineers and agentic builders across Bolder's client portfolio

ATS Keywords

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Hard Skills & Tools

AWSPostgreSQLSchema DesignQuery OptimizationData EncryptionNetwork IsolationVPCIAMECSEKS

Soft Skills

Proactive CommunicationDocumentation