Senior Systems Engineer - Messaging & Collaboration
Elliot Partnership
Senior Systems Engineer - Messaging & Collaboration
New York, NY (Hybrid, 3 days in office)
Highly competitive compensation package
Join an elite technology and research group at the forefront of global finance, where world-class engineering and quantitative research converge. This firm treats infrastructure as code and systems engineering as a competitive advantage. We are seeking a highly skilled technical leader to take ownership of the firm's critical messaging ecosystem—a complex environment where reliability is paramount, and innovation is constant.
The Role
We are seeking a deeply experienced Senior Messaging & Collaboration Engineer to serve as the firm's Subject Matter Expert (SME) on all mail-related technologies. This is not a standard administration role; it is an engineering position that requires you to bridge the gap between legacy stability and modern agility. You will own the architecture of a hybrid messaging stack that spans both Windows and Linux environments, and you will partner directly with software developers to modernize how the firm consumes and processes communication, from API migrations to Generative AI prototyping.
Responsibilities
- Design, implement, and maintain a complex, high-availability messaging infrastructure involving Microsoft Exchange (On-Premises & Online) and Linux-based mail services (Postfix).
- Lead high-impact projects to modernize the messaging environment, specifically guiding the migration of applications from legacy EWS to Microsoft Graph API.
- Oversee the evolution of the desktop experience, managing the transition from COM-based integrations to modern Outlook JS add-ins and prototyping new AI-driven workflows.
- Act as the primary owner for mail security and hygiene, managing sophisticated anti-spam and threat protection gateways (Proofpoint) to protect the firm's proprietary data.
- Serve as a technical advisor to internal development teams, utilizing PowerShell or Python to build automation and troubleshoot complex mail routing logic.
What you'll bring:
- 7+ years of experience managing complex, enterprise-scale messaging capability.
- Demonstrable proficiency in managing both Microsoft Exchange (Hybrid/Online) and Linux-based mail systems (Postfix).
- Deep familiarity with mail-related APIs (EWS, Graph API, MAPI) and experience helping software engineers integrate with messaging platforms.
- Proven expertise in mail security protocols and gateways (specifically Proofpoint or similar enterprise-grade tools).
- A track record of troubleshooting advanced Outlook client-side issues and dissecting complex mail-flow problems in a high-pressure environment.
Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior Systems Engineer - Messaging & Collaboration in New York, NY vacancy
$200k - $250k
The Senior Systems Engineer will play a crucial role in managing and optimizing our Microsoft 365... ...written and verbal, with the ability to collaborate effectively with stakeholders.... ...federation. Administer email security and messaging infrastructure, ensuring compliance with...Senior- ...VAST Data is looking to hire a Senior Sales Engineer – Global Systems Integrators (GSI) to join our growing... ...separate systems for storage, databases, messaging, virtualization, and AI pipelines.... ...across the GSI ecosystem. Collaborate closely with Product Management...Senior
VAST Data
New York, NYmore than 2 months ago - ...Messaging Systems Engineer Information Services Department Debevoise & Plimpton LLP is a premier law firm with market-leading practices... ...best of our firm to our lawyers and clients through true collaboration. The firm is seeking a Messaging Systems Engineer to...SuggestedWork at office
Debevoise & Plimpton
New York, NY5 days ago - ...medication in stock. We are a highly collaborative team of builders and operators who... ...us!About the RoleWe’re looking for a Senior Design Systems Engineer II to shape and scale the visual and... ...number and consent to receive text messages may receive SMS or MMS updates from...Senior
$250k
...looking for a core C/C++ engineer to help build and scale our... ...latency, high-throughput systems role focused on the heart... ...and minimal bureaucracy, collaborating closely with other senior engineers to design,... ...structures, and build scalable messaging and event-driven systems...Senior- Systems Engineer, Servers/Cloud/DataLocation: Must be able to work onsite Tue, Wed, & Thursday out of one of these office locations: New... ...performance computing (HPC) solutions across distributed systems, collaborate with development and operations teams, and automate tasks...SeniorWork at office
- ...Job Description Job Description SENIOR SYSTEMS ENGINEER HYBRID - NEW YORK CITY PERMANENT RESIDENTS ONLY PERMANENT ONLY The... ...performance monitoring while supporting incident resolution and collaborating with infrastructure teams on backup, disaster recovery,...SeniorPermanent employmentWork at office
Stone Search
New York, NY7 days ago $165k - $200k
...technology and building something that truly matters. Collaborative Team: We thrive on curiosity, shared goals, and solving complex... ...feedback and needs. ABOUT THE JOB Radar is hiring a Senior Systems Engineer with end-to-end ownership of system-level inventory...SeniorFlexible hoursRADAR
New York, NY16 days ago$10 per hour
...join us. The Opportunity: Flexport IT is looking for a Senior Systems Engineer (Identity & Access) . In this role, you will design,... ...advanced password management. SaaS Operations: Manage core collaboration tools including Google Workspace, Microsoft O365, Slack,...SeniorRemote workFlexible hoursFlexport
New York, NY14 days ago$153k - $204k
...25. Learn more at .What You'll Do:The Systems Engineering team owns the host software stack that... ...further down the stack.About the role:As a Senior Software Engineer on the Systems... ...— as the fleet and test surface grow.Collaborate with firmware, kernel, imaging, and HPC...SeniorPermanent employmentFull timeTemporary workCasual workLive inWork at officeFlexible hours$115k - $135k
...position is a hands-on cloud and platform engineering role with a strong focus on AI-enabled... ...within Microsoft Azure.The CCSI Systems Senior Engineer is a full-time role located in... ...environments such as SOC2, ISO27001, and HIPAA.Collaborate with cloud architecture, security, and...SeniorFull timeWork at officeRemote workRelocation packageMonday to Friday$130k - $150k
Senior Windows & Citrix Engineer - Global Fintech Leader Are you ready to take your Citrix expertise to the... ...Windows Engineering Team, you’ll collaborate with talented professionals across the... ...direct influence on enterprise-wide systems, while continuing to grow your...SeniorWorldwide- ...Office 365 Messaging/Collaboration Engineer Location: New York, NY/Clinton, NJ Duration: Fulltime... ...• 2+ years of developing information system design, governance, process, procedure... ...to collaborate effectively with other senior architects, support personnel and SN...Full timeWork at office
JConnect Infotech
New York, NY2 days ago $150k - $250k
...Senior Systems Engineer Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a... ...cloud-to-cloud migrations of HPC and distributed workloads Collaborate with research/engineering teams to optimize compute,...SeniorCasual workWork at officeTower Research Capital LLC
New York, NY4 days ago$167.5k - $255.25k
...reference architectures, and engineering guardrails to ensure... ...cause analysis, acting as the senior escalation point for cross-domain... ...and technical mentorship to systems analysts, engineers, and partner... ...operational telemetry. Collaborates cross-functionally with...SeniorFull timeWork experience placementLocal areaShift workHSS
New York, NY5 days ago$130k - $225k
Senior Systems Engineer - Windows/SQL Services Location New York Business Area Engineering and CTO Ref # 10052871 Description... ...with the ability to take ownership of complex issues and collaborate across engineering disciplines.We’d Love to SeeExperience...SeniorTemporary workFor contractorsWork experience placementWorldwide$182k - $242k
...Do: CoreWeave is seeking a highly skilled and motivated Senior Systems Engineer, Legal Systems to build and scale our contract lifecycle management... ...thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to...SeniorPermanent employmentFull timeContract workTemporary workCasual workWork at officeFlexible hoursCoreWeave
New York, NY7 days ago$150k - $175k
...Headquartered in the United States, TP-Link Systems Inc. is a global leader in reliable... ...-Link’s growth across the U.S. As a Senior Systems Engineer, you’ll serve as the trusted... ...tradeshows, seminars, and partner events. Collaborate with Product and Engineering to...SeniorWork at officeLocal areaWorldwideTP-Link Systems Inc.
New York, NY27 days ago- CoreWeave, The Essential Cloud for AI, seeks a Senior Software Engineer for the Systems Engineering team to own and evolve the in-house test framework... ...and shape abstractions for broader testing. You will collaborate with firmware, kernel, imaging, and HPC teams, and contribute...Senior
- ...production support for business-critical systems and services Administer and maintain... ...runbooks Mentor peers and contribute to engineering-team knowledge sharing Requirements... ...solving skills Excellent communication and collaboration abilities Ability to work...Senior
- ...Employment Type: Full Time Join a leading organization as a Senior Systems Engineer and play a pivotal role in managing and enhancing... ...to leverage your expertise in a dynamic environment while collaborating with diverse technical teams, this could be your next career...SeniorFull time
- ...validation of assigned subsystems within our autonomous vehicle system architecture. Collaborate with cross-functional teams to develop and deploy... ...and track KPIs for your areas to support data-driven engineering and system performance. Build data collection and analysis...Senior
$140k - $180k
Position Overview An elite international law firm is seeking a Senior Systems Engineer to join its Infrastructure & Security team in the New York... ..., disaster recovery, and infrastructure integrations. Collaborate with infrastructure and security teams to maintain...SeniorWork at office$141.4k - $234.5k
...technology space, is seeking a talented and motivated Senior Pre-Sales Systems Engineer to join our dynamic team. As a Senior Pre-Sales Systems... ...tailoring Everpure solutions to meet their specific needs. Collaborating closely with the sales team, you will act as a...SeniorLocal areaRemote workFlexible hours$113.2k - $237.8k
Job Title: Senior CIWS Systems Engineer Job Category: Engineering Time Type: Part time Minimum Clearance Required to Start: Secret Employee Type... ...the field and ensure the CIWS system operates optimally. Collaborate with cross‑functional stakeholders including Government...SeniorContract workPart timeWork experience placementFlexible hours- # Senior Systems Engineer# Senior Systems EngineerSTEELGATE LLCPublishedJuly 7, 2026LocationFt. Gordon, GeorgiaJob TypeFull-time### Description... .... Supports establishing system specifications and collaborates with engineering teams to develop systems. Supports design...SeniorFull timeWorldwide
- ...customers in support of America's warfighters, is looking for a Senior Systems Engineer in North Charleston, SC . This is an onsite position... ...containerization and cloud security. Excellent communication and collaboration skills. Familiarity with Navy cloud and automation...SeniorRelocation
- ...to matter. Come build it with us! About the Role As the GTM Systems Engineer, you will own and build the systems and data foundation for... ...we expand our AI-native revenue operations infrastructure Collaborate with Sales, Partnerships, and Growth leadership to translate...SeniorWork at officeRemote workVisa sponsorshipFlexible hours
$112k
Job Overview Sr. IT Systems Engineer designs, implements, and supports the company’s core infrastructure... ...to complex technical projects, collaborating with cross‑functional teams to deliver... ...tickets and appropriate escalation to senior leadership when needed. Create and...SeniorCasual workWork at officeNight shiftAfternoon shift3 days per week$130k
As a Senior Systems Engineer, you will play a key role in our technical delivery team to drive the technology programs, including Cloud implementation... ...rapidly evolving technology landscape. What you will do: Collaborate with, and act as a tier 3 escalation point for Client...SeniorWork at officeRemote workWorldwideFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Systems Engineer - Messaging & Collaboration. Be the first to apply!
Related searches
- system support engineer New York, NY
- healthcare systems engineer New York, NY
- system engineer contract New York, NY
- broadcast systems engineer New York, NY
- senior linux systems engineer New York, NY
- systems engineer New York, NY
- computer system validation engineer New York, NY
- distributed systems engineer New York, NY
- space systems engineer New York, NY
- visual systems engineer New York, NY