Jobs in the United States

25+ jobs

Save this search

Added 1 min ago
Senior Data & Analytics Solution Sales Executive - Healthcare West
ServiceNow
Remote, United States
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 1 min ago
Senior Data & Analytics Solution Sales Executive - Energy
ServiceNow
Remote, United States
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 3 mins ago
S-
2027 Mechanical Engineer Intern- Gilbert AZ
SP - Orbital Space Systems
United States
- $18.5 to $41.5 USD / hour
Northrop Grumman is seeking a Mechanical Engineer Intern. This position will be located at our Space sector in Gilbert, AZ.
Added 8 mins ago
RU
Senior Technical Lead - Java / Distributed Systems
Randstad USA
Washington, DC
- $55 to $60 USD / hour
Technical Leadership: 3+ years serving as a hands-on Senior Technical Lead, Lead Engineer, or Principal Engineer leading delivery while remaining actively engaged in the codebase.
Added 8 mins ago
RU
Senior Network Security Engineer
Randstad USA
Washington, DC
- $60 to $70 USD / hour
Randstad is seeking an experienced Senior Network Security Engineer to serve as a technical leader in designing, implementing, and optimizing perimeter and infrastructure security controls…
Added 12 mins ago
Senior Data Engineer (Clearance Required) - Remote US
ICF
Reston, VA
The Work: We are seeking a Senior Data Engineer to support federal government programs by designing, building, and maintaining scalable, secure, and compliant data solutions. This role…
Added 17 mins ago
Senior Specialist, Electrical Engineer- Motor Control and Servo Design
L3Harris Technologies
Salt Lake City, UT
Job Title: Senior Specialist, Electrical Engineer- Motor Control and Servo Design
Added 19 mins ago
Senior AWS Database Migration Architect / Engineer
NTT DATA Americas, Inc.
Charlotte
We are currently seeking a Senior AWS Database Migration Architect / Engineer to join our team in Charlotte, North Carolina (US-NC), United States (US).
Added 30 mins ago
Senior Data Engineer (Clearance Required) - Remote US
ICF Incorporated, LLC
Reston, VA
The Work: We are seeking a Senior Data Engineer to support federal government programs by designing, building, and maintaining scalable, secure, and compliant data solutions. This role…
Added 38 mins ago
Senior Core Infrastructure Engineer
Oracle
Santa Clara, CA · Seattle, WA
…tolerance, and high availability. We are looking for a hands-on engineer with strong systems programming skills, end-to-end ownership, and an AI-first mindset to drive engineering…
Added 40 mins ago
Senior Software Engineer
Sonic Healthcare USA, Inc
Dallas, TX
The Senior Software Engineer designs, develops, and supports enterprise software applications that enable laboratory and business operations. This role works closely with architects,…
Added 44 mins ago
Senior Integration Developer
Trulieve
Tallahassee, FL
This position will provide technical development expertise supporting Trulieve integration environment and development responsibilities. Includes working on SAP Integration Suite, Cloud…
Added 49 mins ago
NG
2027 Spring Co-op Software Engineer Intern – McClellan CA
Northrop Grumman
McClellan Park
- $21.5 to $48 USD / hour
Collaborate with senior software engineers in the NIC division to design, develop, and integrate software components for navigation and mission‑planning systems.
Added 49 mins ago
Principal/ Sr Principal Mission Assurance Engineer - 18208
Northrop Grumman
Huntsville
Northrop Grumman Defense Systems is seeking a Principal/Sr. Principal Mission Assurance Engineer to support the SLCM-N Program Quality & Mission Assurance Team in Huntsville, AL. This role…
Added 49 mins ago
NG
2027 Mechanical Engineer Intern- Gilbert AZ
Northrop Grumman
Gilbert
- $18.5 to $41.5 USD / hour
Northrop Grumman is seeking a Mechanical Engineer Intern. This position will be located at our Space sector in Gilbert, AZ.
Added 49 mins ago
Sr. Principal System Engineer - USAF IFC Manager
Northrop Grumman
San Diego
Northrop Grumman Aeronautics Systems has an opening for a Senior Principal Systems Engineer to join our team of qualified, diverse individuals within our Systems Engineering organization,…
Added 49 mins ago
Senior Principal Systems Engineer *
Northrop Grumman
Fairfax · Morrisville
Northrop Grumman’s Space Systems Sector is seeking a Systems Engineer – Level 4 to join our team in our Fairfax, VA or Morrisville, NC locations.
Added 49 mins ago
Sr Principal Engineer Systems
Northrop Grumman
Redondo Beach
Basic Qualifications for a Senior Principal Systems Engineer:
Added 49 mins ago
Missile Integration Technical Lead - 20695
Northrop Grumman
Roy · Corinne
Northrop Grumman Defense Systems is seeking a Missile Integration Technical Lead - Senior Staff Systems Test Engineer to join the Sentinel program in enhancing the US Space Force’s ICBM…
Added 50 mins ago
Flight Software Engineer - Level 3/4 (AHT)
Northrop Grumman
Redondo Beach
Northrop Grumman’s Space Sector is seeking a Flight Software Engineer - Level 3/4 to join our Western Region Software Engineering team. This position is located onsite in Redondo Beach, CA.
Added 50 mins ago
Principal/Senior Principal Systems Engineer *
Northrop Grumman
Fairfax · Linthicum Heights
Northrop Grumman Space Systems (NGSP) is seeking an experienced Principal/Senior Principal Systems Engineer supporting our Advanced Tactical Missions Business Unit (BU) to support a program…
Added 50 mins ago
Optical Subsystem I&T Engineer - Level 1
Northrop Grumman
Chandler
This position supports the Seeker Integrated Product Team (IPT) and will assist in the integration and testing of EO hardware, working alongside senior engineers and multidisciplinary teams…
Added 53 mins ago
U
Sr System Engineer - AV Labs
Uber
Sunnyvale, CA
- $190,000 to $211,000 USD / year
As a Senior System Engineer, you will be at the forefront of Physical AI, defining high-performance standards and driving rigorous performance evaluations for the autonomous industry. You…
Added 54 mins ago
Software Development Engineering - Advisor I
Fiserv Solutions LLC
Sunnyvale, CA
What does a successful Senior Cloud Automation Engineer do at Fiserv?
Added 59 mins ago
Fellow Systems Engineer
Boston Scientific
Santa Clarita
As a Fellow Systems Engineer within Boston Scientific's Neuromodulation R&D team, you will serve as a senior technical lead, driving systems engineering strategy, architecture and design…

Cielo Projects

Senior Protocol Engineer

New York, NY, United States

$140,000 to $180,000 USD / year

Apply About employer

Applications open in a new tab.

Job details

Pay: $140,000 to $180,000 USD / year
Posting language: English
Posted: Nov 4, 2026

Original job description

Company Description We're partnering with Quant, a global leader in digital transformation and technology solutions, seeking a Senior Protocol Engineer to join their team.

About Quant:

Almost all the money in the economy is commercial bank money, and almost none of it moves on chain. Quant is a leading provider of programmable money infrastructure, and our technology changes that: it lets banks issue, move and settle tokenized deposits around the clock, automatically and securely, while staying connected to the systems they already run on. It is already deployed in regulated environments with central and commercial banks in the UK and around the world, including work on the digital pound and the digital euro. The Clearing House, whose networks clear and settle more than $2 trillion a day, has now selected Quant to power its On-Chain Money Initiative: a new interoperable payments network that will let financial institutions of all sizes clear and settle tokenized deposits, with connectivity to the RTP® and CHIPS® networks. Our technology provides the network's interoperability, orchestration and transaction-management layer, enabling payments that settle immediately and transactions that trigger automatically once agreed conditions are met. Through our Tokenized Deposits-as-a-Service solution, banks of any size can join without building new infrastructure themselves. The network is expected to become available to participating institutions in the first half of 2027, with use cases across corporate treasury, liquidity management, cross-border payments and digital asset settlement. We are building the New York team that will run it.

Job Description

Senior Protocol Engineer Role summary Owns significant workstreams within the smart-contract release train (TD Coin, Settlement Orchestrator, Fiat Relay, Fusion Root, Orchestrator Factory) and contributes to maintaining the Fusion-specific upstream diff against Optimism, guiding Protocol Engineers through implementation.

Key responsibilities

Design and build components within the smart-contract release train.
Contribute to maintaining and testing the Fusion-specific upstream diff against Optimism.
Guide Protocol Engineers through implementation and review their work.
Carry the on-call escalation rotation and join incident bridges for protocol-behavior issues.
Support external audit preparation and remediation for assigned components.

Qualifications

Required experience & qualifications

5+ years in blockchain/DLT, smart-contract engineering or backend distributed systems.
Strong Solidity/EVM (or equivalent) and integration skills.
Experience with rollup/upstream-diff maintenance (Optimism stack or comparable) an advantage.
Comfort carrying production on-call responsibility.

Success measures

On-spec, on-time delivery within the release train.
Post-release defect and rework rate.
On-call response within target.

Apply About employer

Report this job