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Senior Hardware Engineer, Core Technology
Anduril Industries
Costa Mesa, CA
We're looking for a Senior Hardware Engineer for Special Projects to serve as Core Tech's go-to technical problem solver. You will be deployed across the portfolio wherever the…
Added just now
Senior Network Automation & Platform Engineer
Kaiser Permanente
Greensboro, NC
This senior level employee is primarily responsible for providing expert technical advice on IT infrastructure for assigned systems, setting the technical direction for infrastructure…
Added 2 mins ago
Senior / Lead Site Reliability Engineer
Zelis
Morristown, NJ · St. Petersburg, FL · Atlanta, GA · Boston, MA · Creve Coeur, MO
Zelis is seeking a highly skilled and experienced Senior / Lead Site Reliability Engineer (SRE) to join our Site Reliability Engineering team.
Added 2 mins ago
Senior Software Engineer
Zelis
Morristown, NJ · St. Petersburg, FL · Atlanta, GA · Boston, MA · Creve Coeur, MO
Senior Software Engineer – Expert Claim Review
Added 2 mins ago
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Founding Senior Engineer
True Talent Solutions Partners
New York, NY
- $175,000 to $225,000 USD / year
Join an early-stage AI company building an intelligent growth platform for consumer brands. As a founding-level engineer, you will ship product hands-on, shape the technical foundation, and…
Added 3 mins ago
Senior CX Platform Engineer
GitLab
Remote, United States
As a Senior CX Platform Engineer, you'll help GitLab's Customer Experience (CX) teams hand real work to artificial intelligence (AI). You'll use Claude Code and GitLab Duo Agent Platform as…
Added 3 mins ago
Lead Operations & Mission Systems Engineer
The Mitre Corporation
Honolulu, HI
MITRE is seeking a mission engineer with strong expertise in military doctrine, operations, and systems to provide operational insight, guidance and direction for Pacific Air Forces fight…
Added 4 mins ago
RF/IR Seeker Engineer
System Studies and Simulation, Inc.
Redstone Arsenal, AL, AL
S3, Inc. has an immediate need a Senior RF/IR Seeker Engineer to support our STORM Technical program at Redstone Arsenal, AL.
Added 7 mins ago
Senior Software Engineer (Ruby/Rails), MVR
Checkr
San Francisco, CA
As a Senior Software Engineer on the MVR team, reporting to the Engineering Manager, you will build and evolve the systems that power Checkr's motor vehicle record screenings, helping…
Added 12 mins ago
Staff Plastics Engineer
Beckman Coulter, Inc.
Chaska, MN
You'll thrive in a culture of belonging where you and your unique viewpoint matter. And by harnessing Danaher's system of continuous improvement, you help turn ideas into impact, innovating…
Added 13 mins ago
Senior Reliability Engineer
Freeport McMoRan
Climax, CO
Identify system constraints and proactively pursues elimination of them through the continuous improvement cycle.
Added 17 mins ago
Staff Engineer
Pager Health
Remote, United States
Pager Health is seeking a Staff Engineer who excels in understanding business goals through insightful questioning. This role involves designing sophisticated healthcare applications,…
Added 23 mins ago
IT Assurance Specialist SME
Chenega Corporation
Arlington, VA
…Office’s (ETO) Information Technology Support and Information System Integration Specialist…
Added 23 mins ago
GE
Metallic Test Lab & SPTC Focal
General Electric Company
Remote, United States
- $116,000 to $154,000 USD / year
Our Supplier Quality Engineer (SQE) for S-SPEC-35 (aeDMS S400) Certified Materials Test Laboratories (CMTL), will apply their demonstrated knowledge of metallic materials testing to lead…
Added 23 mins ago
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Software engineer, generative AI
WRITER
San Francisco, CA · Seattle, WA · New York City, NY
- $146,000 to $240,000 USD / year
…enterprises to safely adopt superintelligence. As a software engineer, generative ai at WRITER, you'll be at the forefront of expanding human capacity by building the secure, scalable…
Added 23 mins ago
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Lead product manager
WRITER
San Francisco, CA · Seattle, WA · New York City, NY
- $204,000 to $283,000 USD / year
…moment when generative AI is redefining how work gets done. As senior staff product manager, you'll report directly to Wil Pong, VP of Product, and operate as a force-multiplier across the…
Added 23 mins ago
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Software engineer, connectors & MCP
WRITER
San Francisco, CA · Seattle, WA · New York City, NY
- $146,000 to $240,000 USD / year
We're looking for an exceptional software engineer to join our rapidly evolving team at WRITER. In this pivotal role, you'll be at the forefront of expanding human capacity by building the…
Added 24 mins ago
Senior CyberArk PAM Engineer
The Northern Trust Company
Tempe, AZ
In this senior technical role, you’ll be responsible for the stability, security, and performance of the CyberArk platform, acting as a senior escalation point for complex issues and…
Added 26 mins ago
Staff Systems Safety Engineer
Twenty-Six Defense
Fort Worth, TX
Twenty-Six Defense, headquartered in Fort Worth, Texas, is a leading provider of high-performance products, system solutions, and aftermarket support services focusing on the defense,…
Added 28 mins ago
Senior Principal Space Systems Engineer
General Dynamics Mission Systems, Inc
Scottsdale, AZ
…analysis; developing signal processing architecture and overall system architecture; preparing specifications; developing requirements; and supporting integration and…
Added 29 mins ago
Staff Endpoint Engineer
SmithRx
Plano, TX
SmithRx is seeking a visionary and highly strategic Staff Endpoint Engineer to serve as the overarching technical authority and architect for our enterprise endpoint infrastructure, vendor…
Added 31 mins ago
Senior Presales Engineer - New England
Motorola Solutions, Inc.
MA · Woodcliff Lake, NJ
Provide solutions description and system configuration diagrams
Added 31 mins ago
ST
Senior System Integration and Test Engineer
Silvus Technologies, Inc.
Irvine, CA
- $130,000 to $180,000 USD / year
Silvus is seeking a Senior System Integration and Test Engineer who will report to the Senior Engineering Director on the Irvine Engineering team. The successful individual in this role…
Added 31 mins ago
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Senior Laser Test & Characterization Engineer
Neurophos
Austin, TX
- $160,000 to $185,000 USD / year
Neurophos is hiring an electro-optics engineer to build and run the test and characterization of the lasers and optical amplifiers behind our photonic AI processors.
Added 32 mins ago
FE
Senior Supplier Industrialization Engineer, Battery Materials
Form Energy, Inc
Somerville, MA · Weirton, WV
- $128,662 to $168,844 USD / year
…during extended periods of stress. By strengthening the electric system and reimagining what’s possible, we’re giving clean energy a whole new…

Closed listing

Fairmarkit

Senior Full-Stack Engineer (Backend Leaning)

United States

This opening has closed.

The original listing is kept below for reference.

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Job details

Posting language: English
Posted: Nov 2, 2026

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Original job description

Archived listing. The details below describe a past opening.

Fairmarkit is the #1 autonomous sourcing platform revolutionizing the way all organizations buy & sell. Fairmarkit equips procurement teams with automation, AI, and GenAI so they can source more competitively at scale. Our solutions for tail spend and strategic sourcing help innovative procurement teams reduce cycle times, drive out costs, meet ESG/Diversity targets, and provide a better stakeholder experience to internal partners and suppliers. Fairmarkit has been recognized with awards by organizations such as Gartner and IDC, and is backed by strategic investors like Notable Capital, Insight Partners, 1984.VC, and Newfund.

The Role

We're hiring a senior engineer to help build the products our customers run their sourcing on -- events, supplier bids, awards, and the integrations that connect Fairmarkit to the ERPs and procurement suites they already use. The work is full-stack and leans back end. Most of your time goes into domain models, APIs, event-driven services and data that has to be right. Front-end engineers and dedicated designers work on the UI with you, so you need to be comfortable shipping a screen to production, but not necessarily an expert.

You won't be pinned to one feature. As priorities change you'll go where the work matters most, which might be sourcing workflows one quarter and an ERP integration the next. If you like learning a new domain quickly and leaving it better than you found it, you'll do well here.

We're not just "using AI". We build our own internal tooling, agentic systems and custom harnesses that improve how we collaborate, how we ship, and what we deliver to customers. If anything, AI raises the bar. The corners we used to cut to ship on time are work we can now hand to AI in parallel. We care about engineering excellence in the traditional sense: discipline, rigor, well-designed systems, and code we're glad to maintain a year from now. AI writes more of the syntax than it used to. Your judgment shows up everywhere else, from framing the problem and designing the system to reviewing what gets built, testing it and running it in production.

What You'll Do

Design and build features end to end, from the domain model and API to the screen, with product managers, designers, front-end engineers, and QA
Own the hard parts of the back end -- data models, service boundaries, event flows, and the integrations that move purchase data between Fairmarkit and our customers' systems
Build with AI coding agents every day, and hold what they produce to the same standard as code you wrote by hand
Review code carefully. Catch design problems before they ship, keep types honest, and design out whole classes of bugs instead of relying on tests to catch them
Move across product areas as the roadmap shifts, ramp up fast, and write down what you learn for the next person
Raise the bar around you. Mentor engineers who are new to an area, and help shape how we build software with AI

What You'll Bring

A track record of shipping production software across the stack, with real depth on the back end
Strong fundamentals in system design, clear interfaces, type safety and well-chosen tests
Professional experience in at least one statically typed language such as Java, C#, Go, Kotlin, Scala or Rust, alongside TypeScript and Python
Daily, hands-on use of AI coding tools, and the discipline to review, correct and own what they produce
Comfort walking into an unfamiliar domain, asking good questions and finding the real constraint quickly
The habit of explaining your decisions in writing (design docs, clear pull request descriptions, decision records) so teammates can follow and build on them without a meeting. We're building a culture of asynchronous, written communication, and we want people who'll help lead it

Bonus Points

Experience with procurement, ERP or B2B commerce systems (Coupa, SAP Ariba, Oracle, NetSuite)
Event-driven systems and data pipelines (Kafka, change data capture, Postgres at scale)
Experience at a startup or growth-stage company where you owned outcomes, not just tickets
Work that shows how you build: open source, a side project, or a write-up of how AI changed the way you work

Headquartered in Boston, and backed by a $35.6M Series C co-led by OMERS, Highland, Notable Capital, Insight Partners, and ServiceNow. We are looking for exceptional candidates who want to help grow our company into a global enterprise and make their mark on the B2B tech industry. Come soar to new heights with us!

Fairmarkit is an equal opportunity employer, and selects individuals best matched for the job based upon job-related qualifications regardless of race, religion, color, creed, sex, sexual orientation, age, ancestry, national origin, gender identity, genetic information, disability, pregnancy, veteran or military status or any other status or characteristic protected by law.

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