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Ditto

Senior Software Engineer, Networking

Ditto

. Design, implement, and own core components of Ditto’s networking and transport stack .

Posted 9/15/2026full-timeRemote • California • United StatesSenior💰 $223,000 - $259,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and implementing networking and transport protocols, with a strong focus on performance optimization and debugging in complex systems. Proficient in Rust or C++, with a solid understanding of modular APIs and real-time application synchronization.

Highest-signal resume keywords
Rust ProgrammingC++ ProgrammingNetworking ProtocolsDebugging Complex SystemsModular API Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Systems Software DevelopmentTransport ProtocolsConcurrency PrimitivesProfiling TechniquesTCP/UDP/QUIC SemanticsFlow ControlLatency OptimizationTransport AbstractionsPerformance Bottleneck IdentificationProtocol State Machines
Soft Skills
Clear CommunicationCollaboration in Distributed TeamsPassion for Learning
Tools & Technologies
BLELANWi-Fi AwareAWDLApple Core BluetoothAndroid WiFi Aware APIsLinux NetworkingAsync I/O
Industry Keywords
Overlay NetworkingRoutingVirtual ConnectionsChannel LifecyclePeer-to-Peer SynchronizationReal-Time ApplicationsNetworked Services

Tech Stack

Tools & technologies
AndroidLinuxRustC++

About the role

Key responsibilities & impact
  • Design, implement, and own core components of Ditto’s networking and transport stack
  • Work across overlay networking, routing, virtual connections, channel lifecycle, and physical transports/protocols including BLE, LAN, Wi-Fi Aware, and AWDL
  • Re-architect the networking stack toward a modular, scalable, high-performance design
  • Establish clear interfaces and ownership boundaries between transport layers and mesh abstractions
  • Debug and improve connectivity issues involving data transfer reliability, MTU negotiation, pairing instability, throughput ceilings, and cross-platform synchronization
  • Build and optimize transport mechanisms for flow control, backpressure, congestion handling, retries, connection lifecycle management, and failure recovery
  • Identify and eliminate performance bottlenecks in latency, memory footprint, CPU utilization, and tail behavior
  • Design protocol state machines, wire formats, and transport abstractions for unreliable networks and constrained environments
  • Establish observability through logging, metrics, and diagnostics for production debugging and root-cause analysis
  • Contribute to Ditto’s mission of enabling resilient, real-time applications through peer-to-peer synchronization at the edge
  • Collaborate in a distributed, asynchronous team environment

Requirements

What you’ll need
  • 5+ years of professional experience building systems software, with at least 3 years focused on networking, transport protocols, or routing
  • Strong proficiency in Rust or C++
  • Knowledge of ownership and borrowing semantics, async runtimes, concurrency primitives, and profiling/optimization techniques
  • Understanding of TCP, UDP, and QUIC semantics and tradeoffs, including connection establishment, congestion and flow control, retransmission behavior, MTU/fragmentation, latency, throughput, and reliability
  • Exposure to or experience working with networked services and protocols
  • Ability to debug complex behavior in networked and concurrent systems, including race conditions, deadlocks, resource leaks, and latency spikes
  • Experience designing modular APIs and abstractions that scale across multiple implementations and evolve safely over time
  • Clear written and verbal communication skills in a distributed, asynchronous team environment
  • Passion for learning new networking technologies, APIs, and approaches
  • Nice to have: experience with mesh networking protocols, routing algorithms, or gossip protocols
  • Nice to have: understanding of mobile platform constraints, background execution models, battery optimization, and OS suspension/resume cycles
  • Nice to have: experience with Apple Core Bluetooth or Android WiFi Aware APIs
  • Nice to have: experience with Linux networking, sockets, async I/O, or low-level systems programming
  • Nice to have: willingness to travel once per quarter for in-person team gatherings
  • Required work authorization question concerns working in the United States

Benefits

Comp & perks
  • Competitive salaries
  • Meaningful equity
  • US health, dental, vision, life, and disability insurance
  • 401(k)
  • Flexible spending accounts
  • Flexible time off
  • Remote work
  • Atlanta office available as an optional place to work or meet teammates
  • Willingness to travel once per quarter for in-person team gatherings is listed as a nice-to-have