Backend Software Engineer

Alchemy

Backend Software Engineer focused on architecting and building high-throughput distributed systems at Alchemy. Working on both new systems and improving existing ones for a platform supporting millions of users globally.

Posted 7/27/2026full-timeBucharest • 🇷🇴 RomaniaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing, building, and maintaining scalable backend infrastructure and APIs, with a strong focus on performance optimization and reliability. Proficient in cloud-native environments and distributed systems, with a commitment to best practices in backend development.

Highest-signal resume keywords

Backend Infrastructure DesignJava ProgrammingAWS Cloud ServicesDistributed Systems ArchitecturePerformance Optimization

ATS Keywords

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Hard Skills

Backend DevelopmentAPI DesignScalability SolutionsAutomated TestingBenchmarkingJavaRustKubernetesCloud-Native EnvironmentsProduction Systems

Soft Skills

OwnershipCuriositySelf-StarterDetail-OrientedProblem-Solving

Tools & Technologies

Amazon EKSCloud InfrastructureDistributed SystemsHigh-Throughput SystemsLow-Latency APIs

Industry Keywords

Computer ScienceWeb3StartupsProduction ExperienceEmerging Technologies

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsJavaKubernetesRustWeb3

About the role

Key responsibilities & impact

Design, build, and maintain backend infrastructure, APIs, and services at scale.
Own the architecture and implementation of distributed systems behind high-volume, low-latency APIs.
Solve hard scalability, latency, and performance problems in live production systems.
Lead system design discussions and shape the direction of our backend architecture.
Set the best practices for backend development—throughput, reliability, and latency.
Validate performance through automated testing, benchmarking, and production-driven improvements.
Trace production issues across services and the full stack, and ship fixes that durably improve reliability.

Requirements

What you’ll need

5+ years of relevant industry experience.
BS/BA degree in Computer Science or equivalent practical experience.
Experience designing, building, scaling, and maintaining core backend components
Ability to solve complex design, scalability, latency, or performance problems in high-throughput, low-latency production systems.
Production experience with Java, Rust
Experience in cloud-native environments, particularly AWS.
Experience with managed Kubernetes platforms such as Amazon EKS is a plus.
Comfortable working across the stack, with a willingness to dive into infrastructure and platform challenges when the problem calls for it.
Experience building highly available and scalable distributed systems.
You're a self-starter who takes ownership, moves fast, and knows when to obsess over the details—and when it's time to ship.
Curiosity about emerging technologies and a desire to continuously learn and explore new ideas.
Web3 experience, a plus
Founded a company or built side projects, a plus
Experience in startups, a plus

Benefits

Comp & perks

Private Health Insurance
Gym Reimbursement
Commuter Benefits
Flexible Time Off
In-Office Group Meals
Learning & Development Stipend
Company Sponsored Conferences & Events
Books & Audiobook subscription with Bookster