Senior Full Stack Engineer (Frontend-Centric) - AI Marketing & Data Platform

Location: Remote - US or Canada

Compensation: $180,000 – $270,000

We are a high-growth, $1.2B-valued company that pioneered the Composable Customer Data Platform (CDP), empowering every business user to take action on their data. We are building the next generation of marketing products, including an AI Decisioning platform that allows marketers to set goals for AI agents to personalize customer interactions. We are seeking a Senior Full Stack Engineer (70-80% Frontend) to develop the intuitive, interactive interface that makes advanced AI and deep analytics accessible to non-technical users.

You will be instrumental in the end-to-end design and implementation of highly interactive user interfaces for a new era of marketing and growth products. This is a frontend-centric role that requires strong architectural ownership, proficiency in modern web stacks, and a solid understanding of backend API design to integrate complex machine learning models into intuitive user experiences.

On a typical day, you will:

Founding Software Engineer - AI Evaluation & Data Infrastructure

Location: San Francisco

compensation: $150K - $240K

We are building the most complex infrastructure that powers frontier data creation for agentic and hard reasoning workflows, helping push the frontier of LLMs and AI Agents. We work with all 5 of the leading AI labs and are experiencing sharp hockey stick growth. We are seeking a Founding Software Engineer with end-to-end ownership to build the systems that power data and evaluation for the next generation of AI.

This is a dynamic, high-impact role that offers immense breadth of ownership over projects that push the frontier of AI evaluation. You will move fluidly across the entire stack, from research prototyping to distributed cloud infrastructure and user-facing analytics. You must be comfortable with constant context switching and relentless shipping in a talent-dense environment.

What You’ll Do:

Founding Full Stack Software Engineer (Backend/AI Focus)

Location: Los Angeles, CA, US (On-site)

Employment Type: Full-time

Salary Range: $160K - $225K

We are a rapidly growing, Y-Combinator-backed (YC X25) startup operating at the intersection of AI and Cybersecurity. We are building fully autonomous, in-house AI agent systems designed to solve critical, large-scale problems in modern web application security. Join a small, high-impact founding team to define and build the core technology from the ground up.

We are seeking a skilled and passionate Founding Full Stack Software Engineer with a strong focus on backend development and AI systems. You will be responsible for designing, developing, and maintaining highly scalable, high-performance web applications and our cutting-edge AI Agent platform.

Founding Engineer - AI Data Cleaning & Financial Infrastructure

Location: On site - New York

Compensation: $150,000 – $250,000

We are a high-growth, YC-backed company building the clean data layer for everyone, starting with financial firms. Our platform solves complex data cleaning challenges, delivering accurate, refined data via a simple API that integrates effortlessly into existing ELT pipelines, combining the best of AI and expert human review. We are seeking a Founding Engineer to design, build, and scale our core AI-powered data systems.

This is an unparalleled opportunity to join an early team and drive both the product strategy and the technical direction of the company. You will have immense impact and ownership, working across the entire stack to create a reliable and accurate data platform. You must be a strong engineer excited to work at the intersection of production software and frontier AI/LLM technologies.

What You’ll Do:

Founding Engineer - Full-Stack AI Compliance Platform

Location: On site - New York

Compensation: $200K - $250K

We are a rapidly growing AI and Security company that has already disrupted industry incumbents since launching in 2025. We are building the AI-native compliance platform that automates security and compliance (SOC 2, ISO, HIPAA, GDPR) using AI agents, turning months-long processes into days. We are looking for a Founding Engineer—a true builder ready to own features end-to-end and define the technical DNA of our product.

This is not a narrow role; we seek a full-stack builder who can execute across the entire product lifecycle. You will have deep ownership over critical, high-leverage projects, collaborating directly with the founders to move the business forward. Your code quality and product sense will set the standard for the entire engineering organization.

What You'll Do:

About the Job

Join Excelya, where Audacity, Care, and Energy define who we are and how we work. We believe in creating bold solutions and fostering an inclusive environment where collaboration and individual growth go hand in hand.

This role is an exciting opportunity to contribute to a dynamic, ambitious team in Medical Writing department. You will play a critical part in driving innovation and making an impact in the Medical affairs space, while enjoying a stimulating professional environment that encourages personal and intellectual growth.

Main Responsibilities

About the Job

Join Excelya, where Audacity, Care, and Energy define who we are and how we work. We believe in creating bold solutions and fostering an inclusive environment where collaboration and individual growth go hand in hand.

This role is an exciting opportunity to contribute to a dynamic, ambitious team in Medical Writing department. You will play a critical part in driving innovation and making an impact in the Medical affairs space, while enjoying a stimulating professional environment that encourages personal and intellectual growth.

Main Responsibilities

The Senior Electronic Document Specialist (SeDS) takes a leadership role in coordinating and conducting quality control checks on prepared documents. With experienced and well-defined input, the SeDS ensures the accuracy, completeness, and submission readiness of documents, including cross-references, bookmarks, and navigations.

HSO is a Business Transformation Partner with deep industry expertise and global reach. We leverage the full power of the Microsoft Cloud to help organisations modernise operations, adopt data-driven intelligent automation, deliver real-time insights, and accelerate digital impact. By utilising Dynamics 365, Power Platform, Azure, Microsoft 365, AI/Copilot and Data & AI capabilities, HSO empowers organisations to innovate faster, improve how their people work, and enhance citizen and customer experiences.

Founded in 1987, HSO has more than 2,500 professionals across Europe, North America, and Asia. We are one of the world’s top Microsoft business applications and cloud transformation partners, and a proud member of Microsoft’s elite Inner Circle, representing the top 1% of partners worldwide.

We specialise in sectors such as Public Sector, Retail, Manufacturing, Professional Services, and Financial Services. As an award-winning partner, HSO has been recognised as the global winner of the Microsoft Partner of the Year Award for D365 Finance, and a Finalist for D365 Sales & Marketing. We have also been ranked among the Best Companies to Work For, reflecting our culture of care, innovation, and growth.

At HSO, we are large enough to deliver enterprise-scale transformation, yet small enough to care. Our culture encourages entrepreneurship, collaboration, and personal development — where your voice is heard, and your impact is felt.

DSI, a trusted and authorized partner of AT&T, is seeking an experienced Contact Center Trainer to lead and deliver high-impact training initiatives for our AT&T customer service and escalation teams. This individual will play a key role in shaping agent performance, driving customer satisfaction, and supporting ongoing operational excellence within our contact center environment.

The ideal candidate brings a strong background in training within a wireless telecom contact center, along with expertise in managing escalated customer interactions, resolving issues through research and collaboration, and coaching others to perform at a high level. This role requires someone who can effectively demonstrate best practices and ensure frontline teams are prepared to handle a wide range of customer needs with professionalism and empathy.

If you’re passionate about training, thrive in fast-paced environments, and have experience in the wireless telecom industry—this is the opportunity for you.

• This is an in-office position that will report to our Richardson, Texas
• Full-time, Monday – Friday 9am – 5pm

About DSI

Mercier Consultancy MD is pleased to offer exciting entry-level job opportunities for Dutch speakers, complete with a paid relocation package to Sofia, Bulgaria! This role is designed for motivated individuals who are eager to start their professional journey in a dynamic and supportive work environment. As a member of our team, you will receive comprehensive training and the chance to engage in diverse projects while experiencing the rich cultural landscape of Sofia.

Key Responsibilities

• Support various projects and departmental activities to gain hands-on experience.
• Communicate effectively in Dutch with clients and team members to ensure smooth workflow.
• Participate in training sessions designed to enhance your skills and professional knowledge.
• Collaborate with colleagues to achieve team goals and objectives.
• Provide feedback to help improve processes and increase efficiency.

Requirements