Jobs in the United States

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Sales Engineer
Advanced Systems Group
Fort Wayne, IN
Advanced Systems Group is seeking a driven and tech-savvy Low Voltage Technology Sales professional to join our growing team. In this dynamic Sales/Engineer role, you will design and sell…
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Senior Plant Mechanic
Banner Health Corporate
United States
Schedule: Full-time day shift working 40 hours at Banner Estrella Medical Center
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Senior Midstream Project Engineer
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KBR is seeking an experienced Senior Midstream Project Engineer to lead full‑lifecycle delivery of midstream assets supporting unconventional oil development and enhanced oil recovery (EOR)…
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Network Administrator
Robert Half
Los Angeles, CA
- $70,000 to $75,000 USD / year
…performance. The ideal candidate brings hands-on experience with Cisco infrastructure, firewall platforms, Microsoft technologies, and system administration across mixed…
Added 1 min ago
KL
AI/ML Engineer
Kaizen Labs
New York, NY
- $240,000 to $280,000 USD / year
Candidates must live in or be able to commute to New York City
Added 1 min ago
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Electrical Engineer III
AECOM
Charlotte, NC
- $115,000 to $125,000 USD / year
AECOM is looking for a locally based Electrical Engineer to support our operations in North Carolina and South Carolina, this role is essential for maintaining strong client relationships…
Added 1 min ago
Administrator III, IT Infrastructure
Invenergy LLC
Chicago, IL
We are seeking an experienced and collaborative IT Systems Administrator III position to help foster the design, management, and optimization of our end-user computing environment. In this…
Added 1 min ago
Technology Engineer, IT Infrastructure
Invenergy LLC
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We are seeking an Infrastructure Engineer to help design, implement, support, and continuously improve our enterprise Microsoft technology environment. This role focuses on Microsoft Entra…
Added 2 mins ago
Cloud Systems Engineer
PUMA North America, Inc.
United States
The Engineer, Infrastructure – North America supports the day-to-day operation, stability, and continuous improvement of PUMA North America’s cloud and on-premises infrastructure platforms.…
Added 4 mins ago
Cloud Platform & Cybersecurity Engineer
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This position requires an engineer who is comfortable working across both cloud infrastructure and cybersecurity functions, ensuring systems are scalable, reliable, secure, and compliant…
Added 4 mins ago
Global Red Team AI Engineer, AVP
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The selected colleague will work at an MUFG office or client sites four days per week and work remotely one day
Added 4 mins ago
Global Red Team AI Engineer, AVP
MUFG Bank, Ltd.
Brea, CA · Jersey City, NJ
The selected colleague will work at an MUFG office or client sites four days per week and work remotely one day
Added 4 mins ago
Infrastructure Engineer
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This position serves as a Tier III escalation resource and participates in enterprise technology projects, infrastructure modernization efforts, cybersecurity initiatives, business…
Added 5 mins ago
Solutions Engineer, Federal
Cisco
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You will join a dynamic, customer-obsessed Systems Engineering team dedicated to driving architectural innovation, enterprise transformation, and strategic growth across high-impact…
Added 5 mins ago
Senior Network Engineer
Peraton
UNAVAILABLE · Tinker Air Force Base, OK · Fort Meade, MD · Chambersburg, PA · Lackland AFB, TX · Hill AFB, UT · Columbus, OH · MAFB-Gunter Annex, AL · Arlington, VA
This Senior Network Engineer (SNE) position will support DISA's enterprise network environement and will be responsible for leading the engineering, deployment, and troubleshooting of…
Added 9 mins ago
Senior Golang Engineer, Data Processing
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Santa Clara, CA
AI is moving beyond the cloud and into the physical world. At Litmus, you’ll build the infrastructure that enables real-time data to power AI and machine learning systems in production…
Added 9 mins ago
ITS Engineer Architect / ITS Data Governance
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Farmington, CT
…capabilities. · Long-term strategic responsibility for the company's IT systems. · Promotion of shared infrastructure and applications to reduce costs and improve information flows. Ensure…
Added 9 mins ago
Senior Staff Incident Response Engineer
SoFi
Seattle, WA
As a Senior Staff Incident Response Engineer on the Cyber Defense team, you will serve as the principal technical authority and subject matter expert for incident response within SoFi’s…
Added 10 mins ago
EG
Automated Test Engineer
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Hartford, CT
- $40 to $50 USD / hour
Our client seeks an Automated Test Engineer to support Hivemind by monitoring and maintaining large volumes of automated tests, troubleshooting failures, and driving bug resolution across…
Added 11 mins ago
PC
Administrative Program Manager 2
Pierce County
Pierce County, WA
- $98,369.2 to $125,992.03 USD / year
…partner in advancing the mission of the Office of the County Engineer by leading its financial management, budgeting, compliance, reporting, performance measurement, data analytics, and…
Added 11 mins ago
IT Support Engineer (Hybrid - Columbia MD)
Tenable, Inc.
Headquarters, MD
We are looking for a security-conscious IT Support Engineer with 3+ years of experience providing high-touch technical support for global, high-growth organizations. Expert in managing…
Added 12 mins ago
Senior Software Engineer
Scope3 PBC
Remote, United States
As a Senior Software Engineer, you'll be a hands-on contributor to the APIs, protocols, and agent interfaces that power our agentic advertising platform. You'll help build systems where AI…
Added 13 mins ago
Manager - Civil Structures
Kairos Power
Alameda, CA
…facility structures, including reactor buildings and associated infrastructure. This role manages team performance, workload, and staffing needs while establishing Civil/Structural…
Added 13 mins ago
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Principal Engineer - Validation (ASIC)
Microchip - USA
Basking Ridge, NJ
- $75,000 to $232,000 USD / year
An opening exists in the functional validation group for a Principal Engineer with strong interest in PCI Express (PCIe), Non-Volatile Memory Express (NVMe), embedded low level programming…
Added 14 mins ago
EPICOR Operations Analyst
Lincoln Electric
CO · MI · IA · OH
…requests, tracking requests within Corporate IT’s designated…

Scope3 PBC

Senior Software Engineer

Remote, United States

The salary range for this role is $160k-$210k USD, $160k-$215k CAD.

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Job details

Pay: The salary range for this role is $160k-$210k USD, $160k-$215k CAD.
Posting language: English
Posted: Nov 12, 2026

Original job description

About Apostra

Apostra is defining a new future for advertising, for both humans and their agents.

Our founders helped build the technology that shaped advertising as we know it today. Now, we’re reimagining it from the ground up for a world of people and agents, with human intent at its heart.

We’re creating a place where advertisers, media owners and their agents can discover and act on every kind of media, opening up opportunities that have historically been fragmented and hard to access.

About the Role Our technical team is creating the infrastructure that enables AI agents to discover, negotiate, and transact media inventory autonomously.

As a Senior Software Engineer, you'll be a hands-on contributor to the APIs, protocols, and agent interfaces that power our agentic advertising platform. You'll help build systems where AI agents are first-class participants, with their own authentication, capabilities, and communication standards.

You'll work at the intersection of advertising technology, distributed systems, and emerging AI agent frameworks, tackling complex technical challenges and helping shape how our marketplace evolves.

This is a full-stack (80/20 backend-leaning), hands-on product engineering role. You'll design and build production systems, explore new agent communication patterns, and take meaningful ownership of technical problems from concept through implementation. We're looking for someone who combines strong engineering fundamentals with curiosity, resourcefulness, and an eagerness to work with emerging AI technologies.

This Isn't a Typical Engineering Role

AI isn't an add-on to how we engineer; it's central to how we build. We embrace AI-first development workflows and expect engineers to actively leverage AI coding agents and tools throughout their work. We're looking for people who are genuinely excited about this shift, experiment with emerging capabilities, and continuously rethink what's possible when AI becomes an integral part of the engineering process.
We're operating in a space without a fixed playbook. We value engineers who are comfortable navigating ambiguity, figuring things out, and creating structure where none exists.
Our approach favors rapid experimentation over upfront perfection. We test, learn, iterate, and formalize what works.
We move quickly, tackle difficult problems, and expect engineers to take ownership of their work. You'll have significant autonomy and the opportunity to make a meaningful impact.
We're a small, collaborative team where initiative matters. We value people who know how to make progress independently, communicate proactively, and seek out the context or support they need to succeed.

Responsibilities

Design and build scalable APIs for both human and AI agent clients.
Develop agent interfaces, MCP servers, and A2A communication layers.
Build and operate high-throughput systems for real-time advertising transactions.
Explore, evaluate, and integrate emerging agent frameworks and protocols.
Contribute to architectural decisions around authentication, protocols, and transaction flows.
Take ownership of complex technical challenges, anticipating edge cases in autonomous agent behavior.
Continuously improve engineering workflows, including the practical application of AI tools to accelerate development and problem-solving.
Collaborate with teammates to share knowledge, work through technical challenges, and raise the overall quality of our engineering output.

Qualifications

5+ years of professional software product engineering experience, ideally building distributed backend systems or complex production applications. Exceptional candidates with 4+ years of experience are encouraged to apply.
AI-native engineering mindset: Demonstrated experience incorporating AI coding agents and tools into your development workflow. You actively experiment with AI-assisted development and are excited about the evolving role of AI in software engineering.
Strong engineering fundamentals, with the ability to think through complex technical problems and translate them into practical, scalable solutions.
Experience designing and building APIs and backend services (REST, event-driven systems, authentication, versioning).
Experience working with distributed systems, high-throughput applications, or systems involving autonomous or semi-autonomous decision-making.
A self-starter mentality and the ability to take ownership of projects and drive them forward with minimal direction.
Comfortable navigating ambiguity, learning unfamiliar technologies, and adapting quickly as priorities and requirements evolve.
Strong communication skills and the confidence to advocate for what you need, ask questions, and collaborate effectively with teammates.
A low-ego approach to engineering: open to feedback, willing to challenge your own assumptions, and more interested in finding the right solution than being right.

Backgrounds in early-stage startups, founding engineering teams, or forward-deployed engineering can be particularly valuable, especially where you've had to operate independently, take ownership across multiple areas, and work directly with customers or external partners.

Our Engineering Environment & Tech Stack AI-First Development: AI is central to how we build software at Apostra. Our engineers actively leverage AI coding agents and development tools throughout the software development lifecycle, from exploring unfamiliar codebases and designing solutions to writing, testing, debugging, and iterating on production code. We're looking for engineers who are enthusiastic about pushing the boundaries of what's possible with AI-assisted development and continuously evolving how they work.

Core Technologies:

Backend & APIs: TypeScript/Node.js, REST and event-driven services
Frontend: React
Agent Interfaces: MCP servers and A2A protocol handlers
Data: PostgreSQL, BigQuery, Cloud Storage, Redis
Infrastructure: GCP, AWS

We're interested in engineers who understand systems, think critically about technical problems, and know how to leverage AI to build effectively. Deep familiarity with every technology in our stack is less important than strong engineering fundamentals, adaptability, and the ability to learn quickly.

Leveling & Growth We're hiring at the Senior Software Engineer level, with flexibility to consider candidates whose experience and technical capabilities warrant a broader scope of responsibility. At Apostra, we value demonstrated impact, ownership, and technical ability over titles alone. For an exceptional candidate, there may be an opportunity to grow into Staff-level responsibilities, taking on greater technical ownership and influence as the company and engineering organization evolve. We're most interested in what you can build, how you approach difficult problems, and how you contribute to the success of a small, highly collaborative engineering team.

Compensation

The salary range for this role is $160k-$210k USD, $160k-$215k CAD. These ranges span multiple location-based salary bands across the US and Canada. Candidates are aligned to a narrower range based on geographic market compensation data specific to where they live, and final offers reflect demonstrated skills, experience, and role expectations.

Benefits & Perks

Details vary by location (USA/Canada), but all employees receive:

Health & wellness: Comprehensive medical, dental, and vision coverage with significant employer contribution; short- and long-term disability coverage; health savings/flexible spending options
Retirement: Employer-matched retirement savings plan (401(k) or RRSP)
Time off: Generous paid time off, statutory holidays, and year-end office closure
Parental leave: 13 weeks fully paid (eligibility requirements apply)
Remote work: Company-provided home office equipment, setup stipend, and access to WeWork spaces
Equity: Stock options

Application Requirements

As part of our application process, candidates must provide a LinkedIn profile that includes a clear, identifiable photograph of themselves. Because we receive a high volume of applications for fully remote positions, we use publicly available professional profiles as one part of our candidate identity and experience verification process. Applications without a verifiable LinkedIn profile and identifiable profile photo will not be considered. Please ensure your LinkedIn profile URL is included and that your profile is accessible to our recruiting team before applying.
Although Apostra has a global team, this position is limited to candidates authorized to work in the United States or Canada. We are unable to provide employer-sponsored work authorization now or in the future.

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Jobs in the United States