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Senior Cs Core Engineer Jobs (NOW HIRING)

Char Network

Protocol Core Engineer

Miami, FL · On-site

$99K - $137K/yr

Core Protocol Engineer Position ... Senior Engineer • Location: Miami, FL strongly preferred • Project: Char Network About Char ...

Keylent Inc

Sr 5G Core Engineer

Dallas, TX · On-site

$121K - $160K/yr

Sr 5G Core Engineer Client is transforming the future of connectivity. Client is building the country's first virtualized, standalone 5G wireless network from scratch. The foundation of a connected ...

New

Char Network

Protocol Core Engineer

Miami, FL · On-site

$99K - $137K/yr

Core Protocol Engineer Position ... Senior Engineer Location: Miami, FL strongly preferred Project: Char Network About Char Network ...

Mysten Labs

Senior Core Engineer, Walrus

$164K - $226K/yr

... core of the Walrus network. Our goals are to continually make Walrus more useful to builders while maintaining very high standards for safety, reliability, and efficiency. We're seeking an engineer ...

Diverse Lynx

IMS Core Engineer

Denver, CO · On-site

Role - IMS Core Engineer Location - Denver, CO(Day 1 Onsite) The Senior Core Ops Engineer will maintain the resiliency and operational aspects. Will analyze service and system issues, determine root ...

KE Staffing

Hybrid: Senior .NET Core Engineer

Atlanta, GA · On-site

$117K - $155K/yr

Role Summary We are seeking a highly skilled Senior .NET Engineer with strong experience in .NET Core, React, and AWS to design, develop, and maintain scalable, high-performance applications. The ...

General Motors

Senior HIL Core Engineer

Milford, MI · On-site

$184K - $230K/yr

As aHardware-in-the-Loop (HIL) Engineerwithin General Motors'AV Core Infrastructure team, you will ... You will collaborate with systems engineers, embedded software developers, integration labs, and ...

General Motors

Senior HIL Core Engineer

Milford, MI · On-site

$184K - $230K/yr

As a Hardware-in-the-Loop (HIL) Engineer within General Motors' AV Core Infrastructure team, you will design, build, and maintain advanced HIL systems that accelerate validation of embedded ...

Astemo Ltd

Sr. Engineer - Core Engineering

Farmington Hills, MI · On-site

$102K - $141K/yr

... Senior Engineer - Materials & Structural to join the Suspension Core Engineering Team. This role is focused on shock absorber components and technologies and is ideal for a senior-level engineer with ...

Astemo

Sr. Engineer - Core Engineering

Farmington Hills, MI · On-site

$102K - $141K/yr

... Senior Engineer - Materials & Structural to join the Suspension Core Engineering Team. This role is focused on shock absorber components and technologies and is ideal for a seniorlevel engineer with ...

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Senior Cs Core Engineer information

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$59.5K

$126.6K

$183.5K

How much do senior cs core engineer jobs pay per year?

As of Jun 5, 2026, the average yearly pay for senior cs core engineer in the United States is $126,557.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,500.00 and $143,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior CS Core Engineer, and why are they important?

To thrive as a Senior CS Core Engineer, you need in-depth knowledge of telecom core network architecture, protocols (such as SS7, SIP, Diameter), and a degree in telecommunications or a related field. Familiarity with core network equipment (like Ericsson, Nokia, or Huawei), network management systems, and relevant certifications (e.g., CCNP, vendor-specific) is typically required. Strong troubleshooting, analytical thinking, and effective communication are crucial soft skills for addressing complex network issues and collaborating with cross-functional teams. These skills ensure reliable network operations, quick resolution of critical incidents, and efficient integration of new technologies within the core telecom infrastructure.

How does a Senior CS Core Engineer typically collaborate with other teams within a telecom organization?

As a Senior CS Core Engineer, you will regularly collaborate with cross-functional teams such as network operations, planning, and optimization units to ensure seamless integration and performance of core network elements. Your expertise is vital during network upgrades, troubleshooting sessions, and in implementing new voice or signaling services. Effective communication and documentation are essential, as you may also provide technical guidance to junior engineers and liaise with vendors or third-party service providers to resolve complex issues. This collaborative environment helps maintain high network reliability and supports continuous service improvements.

What are Senior CS Core Engineers?

Senior CS Core Engineers are experienced professionals responsible for designing, implementing, and maintaining the core network systems that handle circuit-switched (CS) telecommunications services, such as voice calls and SMS. They work with technologies like MSC, HLR, and STP to ensure the reliability, security, and high performance of mobile and fixed-line networks. Their role often includes troubleshooting complex issues, optimizing network configurations, and leading projects to upgrade or expand core network capabilities.

What is the difference between Senior Cs Core Engineer vs Network Engineer?

AspectSenior Cs Core EngineerNetwork Engineer
CredentialsBachelor's in CS or related, certifications like CCNA, CCNPBachelor's in CS, EE, or related, certifications like CCNA, CCNP
Work EnvironmentTelecommunications, data centers, network infrastructureCorporate offices, data centers, service providers
Industry UsageTelecom, internet service providers, large tech firmsTelecom, enterprise networks, ISPs
Primary FocusDesign, deployment, and maintenance of core network infrastructureDesign, implementation, and troubleshooting of network systems

While both roles involve network infrastructure, Senior Cs Core Engineers focus on core network components like switches and routers within telecom and data centers, whereas Network Engineers handle broader network setup, configuration, and troubleshooting across various environments.

What cities are hiring for Senior Cs Core Engineer jobs? Cities with the most Senior Cs Core Engineer job openings:
What are the most commonly searched types of Cs Core Engineer jobs? The most popular types of Cs Core Engineer jobs are:
What states have the most Senior Cs Core Engineer jobs? States with the most job openings for Senior Cs Core Engineer jobs include:
Senior Cs Core Engineer jobs near you

Protocol Core Engineer

Char Network

Miami, FL • On-site

$99K - $137K/yr

Full-time

Posted 18 days ago

Job description

Core Protocol Engineer
Position: Senior Engineer • Location: Miami, FL strongly preferred • Project: Char Network
About Char Network
Char Network is a proof-of-stake application coordination protocol built on Bitcoin. By anchoring data into Bitcoin through cryptographic proofs and economic guarantees, Char powers the next generation of Bitcoin layer twos.
We're a small, sharp, and adventurous team led by Bitcoin developer Jeremy Rubin, pushing the limits of what Bitcoin can be. Our work blends deep protocol expertise with a hacker's creativity to unlock new capabilities for Bitcoin at scale.
We keep things collaborative, fast-moving, and fun-where every contribution counts and every voice matters. Joining Char Network means working at the frontier of Bitcoin R&D and infrastructure, where the code you write and the algorithms you create will shape the future of the ecosystem.
About the Role
You'll be building the systems that make Char Network run: consensus node implementation, Bitcoin transaction construction, proof generation and verification, and the testing infrastructure that keeps it all reliable. This is a hands-on engineering role where you're writing the core software that anchors a proof-of-stake protocol into Bitcoin.
You'll work closely with our research team to translate new consensus and cryptography designs into hardened, production-grade code. You should be comfortable moving fast on early prototypes and then going deep on optimization and correctness.
What You'll Do
  • Design and implement domain-specific consensus mechanisms: ballot advancement, leader election, and fork-free attestation coordination
  • Engineer Bitcoin integration: stake bond design (taproot outputs, timelock slashing), cryptographic verification (BLS signatures, hash trees), and proof validation pipelines
  • Build P2P networking and RPC/CLI interfaces for CHAR protocol operations: ballot propagation, leader advertisements, state inspection, and operator commands
  • Design storage and indexing systems for protocol state: bond tracking, ballot history, and attestation persistence with reorg resilience
  • Develop comprehensive testing infrastructure: multi-node simulation, edge case coverage, fuzzing, and DoS scenario validation; conduct rigorous code reviews across the entire stack
What We're Looking For
Must-Haves
  • Strong systems programming skills in C++ with a focus on correctness, performance, and memory safety
  • Experience with low-level programming: memory management, concurrency primitives, performance profiling
  • Comfort working across the stack including cryptographic primitives, networking, storage, and build systems
  • Strong problem-solving instincts and the ability to debug complex, multi-layered systems
  • Collaborative mindset; you give and receive code review feedback constructively

Nice-to-Haves
  • Experience building Bitcoin applications or familiarity with Bitcoin Core codebase
  • Practical experience with cryptographic implementations (hash functions, signature schemes, zero-knowledge proofs, BLS signatures)
  • Familiarity with distributed consensus: ballot voting, leader election, fork-free protocols, Byzantine fault tolerance
  • Experience designing and implementing P2P protocols for custom messages and state propagation
  • Contributions to open-source projects in the Bitcoin or broader crypto ecosystem
  • Understanding of timelock-based economic mechanisms and slashing conditions
Reading Materials
  • Position: Senior Researcher / Scientist • Location: Miami, FL strongly preferred • Project: Char Network
    About Char Network
    Char Network is a proof-of-stake application coordination protocol built on Bitcoin. By anchoring data into Bitcoin through cryptographic proofs and economic guarantees, Char powers the next generation of Bitcoin layer twos and applications.
    We're a small, sharp, and adventurous team led by Bitcoin developer Jeremy Rubin, pushing the limits of what Bitcoin can be. Our work blends deep protocol expertise with a hacker's creativity to unlock new capabilities for Bitcoin at scale.
    We keep things collaborative, fast-moving, and fun-where every contribution counts and every voice matters. Joining Char means working at the frontier of Bitcoin R&D and infrastructure.
    About the Role
    This role sits at the intersection of research and engineering. You'll invent, formalize, and validate the core protocols that make Char Network work-from Byzantine fault tolerant consensus to staking incentive mechanisms to cryptographic proof systems.
    Your focus is on the cryptographic foundations that make Char's protocol secure and efficient: designing and analyzing commitment schemes, aggregation protocols, proof systems, and fork-free coordination mechanisms. You'll work closely with the core protocol team to turn research into hardened, shipping software by building simulations, prototypes, and security specifications that guide implementation.
    This is not a pure theory role, you'll write code.
    What You'll Do
    • Design and analyze cryptographic schemes: BLS proof-of-stake commitments, signature aggregation protocols, hash-based accumulator designs, and zero-knowledge proof systems for Bitcoin anchoring
    • Formalize consensus protocols for protocol security: fork-free properties, Byzantine fault tolerance guarantees, and commitment finality, with rigorous threat modeling and adversarial analysis
    • Develop and validate cryptographic implementations: work with the protocol team to guide BLS Purify integration, verify protocol specifications against implementation, and conduct security reviews
    • Build simulations and prototypes in Rust or C++ to validate cryptographic protocol designs under adversarial conditions: analyze safety/liveness properties and attack resilience
    • Conduct formal cryptographic security analysis: threat modeling, game-theoretic attack analysis, and stress-testing through simulation and fuzzing to identify vulnerabilities before shipping
    What We're Looking For
    Must-Haves
    • Deep expertise in applied cryptography: signature schemes, commitment schemes, zero-knowledge proofs, or cryptographic protocol design
    • Expert-level understanding of distributed systems theory: BFT consensus, fork-free protocols, Byzantine fault tolerance, and formal safety/liveness analysis
    • Strong programming skills in Rust or C++ (or equivalent systems languages)
    • Experience designing, analyzing, or breaking adversarial cryptographic protocols or consensus systems
    • Ability to move between theory and practice: formal reasoning, mathematical modeling, and implementation
    • Exceptional communication skills-you can explain complex cryptographic ideas clearly to both researchers and engineers

    Nice-to-Haves
    • PhD or equivalent research experience in cryptography, distributed systems, or a related field
    • Prior contributions to Bitcoin, Ethereum, or other consensus-critical software
    • Experience with formal verification, model checking, or advanced testing frameworks
    • Published papers, technical reports, or BIPs in cryptography or distributed systems
    • Understanding of Bitcoin primitives: taproot, timelocks, covenant designs, transaction scripting
    • Experience with game-theoretic analysis or mechanism design (helpful for understanding protocol incentives)
    • Strong open-source collaboration background
    Reading Materials
    Char Network
    • MIT Bitcoin Expo Presentation (April 2026)
    • Ember Consensus Paper
    • Purify in purify-cpp

    BitVM
    • BitVM Whitepaper + BitVM2 Whitepaper
    • BitVM High-Level Explainer

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