UX Engineer, LLM Experimentation Platform Jobs

Director of AI Engineering

We are entering a hyper-growth phase of AI innovation and are hiring a Director ...

Location

Canada; United States

Salary:

300000.00 - 450000.00 USD / Year

Apollo.io

Expiration Date

Until further notice

Requirements

10–15+ years in software engineering, with significant leadership experience owning AI/ML or applied LLM systems at scale
Proven history shipping LLM-powered features, agentic workflows, or AI assistants used by real customers in production
Deep understanding of LLM orchestration frameworks (LangChain, LlamaIndex), RAG pipelines, vector search, embeddings, and prompt engineering
Expert in backend & distributed systems (Python strongly preferred) and cloud infrastructure (AWS/GCP)
Strong experience with telemetry, observability, and cost-aware real-time inference optimizations
Demonstrated ability to lead senior engineers, define technical roadmaps, and deliver outcomes aligned to business metrics
Experience building or scaling teams working on experimentation, optimization, personalization, or ML-powered growth systems
Exceptional ability to simplify complex problems, set clear standards, and drive alignment across Product, Data, Design, and Engineering
Strong product sense, ability to weigh novelty vs. impact, focus on user value, and prioritize speed with guardrails
Fluent in integrating AI tools into engineering workflows for code generation, debugging, delivery velocity, and operational efficiency

Job Responsibility

Define the multi-year technical vision for Apollo’s AI stack, spanning agents, orchestration, inference, retrieval, and platformization
Prioritize high-impact AI investments by partnering with Product, Design, Research, and Data leaders to align engineering outcomes with business goals
Establish technical standards, evaluation criteria, and success metrics for every AI-powered feature shipped
Lead the architecture and deployment of long-horizon autonomous agents, multi-agent workflows, and API-driven orchestration frameworks
Build reusable, scalable agentic components that power GTM workflows like research, enrichment, sequencing, lead scoring, routing, and personalization
Own the evolution of Apollo’s internal LLM platform for high-scale, low-latency, cost-optimized inference
Oversee model-driven experiences for natural-language interfaces, RAG pipelines, semantic search, personalized recommendations, and email intelligence
Partner with Product & Design to build intuitive conversational UX that hides underlying complexity while elevating user productivity
Implement rigorous evaluation frameworks, including offline benchmarking, human-in-the-loop review, and online A/B experimentation
Ensure robust observability, monitoring, and safety guardrails for all AI systems in production

What we offer

Equity
Company bonus or sales commissions/bonuses
401(k) plan
At least 10 paid holidays per year
Flex PTO
Parental leave
Employee assistance program and wellbeing benefits
Global travel coverage
Life/AD&D/STD/LTD insurance
FSA/HSA

Fulltime

Principal AI Engineer

We are looking for a Principal AI Engineer to lead the design and deployment of ...

Location

United States

Salary:

200000.00 - 300000.00 USD / Year

Apollo.io

Expiration Date

Until further notice

Requirements

10+ years of software engineering experience
at least 3 years in applied LLM or agentic AI systems (2023–present)
proven success in deploying LLM-powered products used by real users at scale
deep backend & systems engineering expertise with Python, distributed systems, and scalable APIs
familiarity with LangChain, LlamaIndex, or similar orchestration frameworks
experience with RAG pipelines, vector DBs, embedding models, and semantic search tuning
experience managing performance across cloud providers (e.g., AWS Bedrock, OpenAI, Anthropic, etc.)
demonstrated experience building multi-step agents, planning workflows, chaining reasoning steps, and integrating APIs with agent memory/state
comfort with advanced prompting strategies, few-shot and chain-of-thought reasoning, and embedding retrieval setups
strong understanding of AI system evaluation, human ratings, A/B experimentation, and feedback loop pipelines

Job Responsibility

Architect and lead the development of multi-agent systems capable of long-horizon planning, reasoning, and API orchestration
build reusable agentic components that integrate deeply into sales and marketing processes
own and evolve our in-house platform for scalable, low-latency, and cost-efficient LLM and agent deployments
lead design of interfaces powered by natural language understanding and retrieval-augmented generation (RAG)
build embedding-based, intent-aware search and personalization systems tuned to business user needs
drive innovation in personalized outreach generation using context-aware generation pipelines
tune inference pipelines, caching layers, and model selection logic for high-scale, cost-aware performance
define and drive robust offline and online testing methodologies (A/B, sandboxing, human evals) across agents and LLM flows
architect human-in-the-loop systems and telemetry to improve accuracy, UX, and explainability over time

What we offer

equity
company bonus or sales commissions/bonuses
401(k) plan
at least 10 paid holidays per year
flex PTO
parental leave
employee assistance program
wellbeing benefits
global travel coverage
life/AD&D/STD/LTD insurance

Fulltime

Principal Product Designer, Trust

Trust Design shapes the systems that make Cash App safe, transparent, and access...

Location

United States , Bay Area

Salary:

251600.00 - 377400.00 USD / Year

Block

Expiration Date

Until further notice

Requirements

12+ years of experience in product or UX design
A portfolio demonstrating impact in trust, identity, access, or safety-related products
Experience designing for AI-driven or automated systems - where context, prediction, and user control intersect
Mastery in interaction, visual, and systems design, with proven ability to ship high-impact work
Fluency in LLM and agentic workflows, and curiosity about how AI reshapes product design
Exceptional storytelling and cross-functional communication skills
A growth mindset - curious, experimental, and adaptable to emerging tools and paradigms

Job Responsibility

Design for confidence and clarity, balancing customer safety, access, and autonomy in every experience
Create AI-native experiences, designing for and with LLMs, automation, and context-aware systems—translating their capabilities into intuitive and ethical products
Think systemically across complex domains like risk, identity, and security, bringing coherence to multi-surface ecosystems
Deliver high-craft design, caring deeply about detail - from motion and hierarchy to how systems scale seamlessly across platforms
Act as a mentor and multiplier, helping others grow through critique, modeling high craft, and instilling design principles that scale
Partner collaboratively with product, ML, data, and engineering to ship real outcomes - not just artifacts

What we offer

Remote work
medical insurance
flexible time off
retirement savings plans
modern family planning

Fulltime

Senior Design Technologist

At Capgemini Invent, we believe difference drives change. As inventive transform...

Location

United States , San Francisco

Salary:

100000.00 - 150000.00 USD / Year

frog

Expiration Date

Until further notice

Requirements

Professional experience designing and developing user interfaces, UX concepts, web sites and applications on a variety of platforms, frameworks, and methodologies
Ability to collaborate with a multi-disciplinary team of designers and strategists
A background in data management and manipulation to support data specific needs and concepts
Ability to communicate with clients directly and complete program and workstream tasks autonomously in some cases
Exceptional written and verbal communications skills along with experience in preparing and delivering documentation, proposals, presentations, and structured working sessions to all levels in a client organization
Bachelor’s Degree in the sciences, engineering, or creative discipline or equivalent experience
Proficiency in: Modern web front-end application development
Working within Cloud platforms (e.g., AWS, GCP, Azure, etc.)
Source control (e.g., GitHub, GitLab) and toolchain integrations
Third-party API integrations

Job Responsibility

Design Technologists at frog blend futurist vision and practical thinking, serving as hands-on organizers of technical insights, experiments, proofs, and models
Bridge the gap between creative design services, technology strategy, and software engineering
Drive technology platform research, experimentation, concept exploration, prototyping, and ideation within the creative process of designing user experiences
Leverage and manage data to support technical needs ranging from AI applications to impact assessments
Gather, ingest, and utilize data from diverse modalities to advance project goals
Identify and analyze current and emerging UX technology patterns and trends
Conduct in-depth investigations and experiments with new platforms and frameworks
Spot new opportunities for business value and UX innovation through technology enablers
Work closely with the creative team to translate design assets into user experience simulations, interactive prototypes, technical proofs-of-concept, and UI/presentation layers
Embrace a maker and tinkerer mindset—technically adept, passionate about design, and eager to tackle challenges hands-on

What we offer

Flexible work
Healthcare including dental, vision, mental health, and well-being programs
Financial well-being programs such as 401(k) and Employee Share Ownership Plan
Paid time off and paid holidays
Paid parental leave
Family building benefits like adoption assistance, surrogacy, and cryopreservation
Social well-being benefits like subsidized back-up child/elder care and tutoring
Mentoring, coaching and learning programs
Employee Resource Groups
Disaster Relief

Fulltime

New

Senior financial analyst- accounts receivable

Our client, a leading organization in the Insurance sector, is seeking an experi...

Location

Canada , Markham

Salary:

Not provided

Randstad

Expiration Date

January 12, 2026

Requirements

A recognized Accounting designation is highly preferred (CGA, CMA, or CPA)
Proven, hands-on experience with accounting operations and reconciliations, particularly within a large data environment
Exceptional attention to detail and the ability to efficiently work with large amounts of data
Proficient problem-solving skills are essential, specifically the ability to rigorously investigate and resolve financial variances and reconciliation issues
Direct experience working with AR subledger systems and the Oracle Fusion financial platform

Job Responsibility

Execute full-cycle Accounts Receivable (AR) finance operations daily
Perform daily tracking of all AR activities and execute necessary month-end GL bookings specifically related to AR
Conduct monthly AR transactions reconciliation and reconcile AR positions at each period end
Prepare and process necessary journal bookings as part of the financial close process
Collaborate directly with Billing Operations teams to perform complex investigations and variance analysis
Assess the appropriateness of accounting operations for accounts receivables to ensure compliance and accuracy
Drive continuous improvement by identifying, documenting, and implementing process improvements for AR finance operations

What we offer

1-Year Contract: Secure, full-time contract role offering continuity and experience with a top-tier client
Impactful Role: Direct opportunity to implement process improvements and enhance the quality of core accounting operations
Executive Exposure: Work closely with operational teams and contribute to the accuracy of the General Ledger (GL)

Fulltime

New

Credit and Collections Specialist

Randstad is searching for a Credit and Collections Specialist for one of our thr...

Location

Canada , Mississauga

Salary:

Not provided

Randstad

Expiration Date

January 15, 2026

Requirements

At least three years’ experience with high volume Collections
Experience communicating with clients regarding delinquent accounts
Experience preparing and sending collection e-mails
Experience obtaining information for clients
Experience negotiating payment plans
Experience researching, analyzing and resolving problems
Experience performing account reconciliations
Experience assisting appropriate billing issues
Experience reaching out to clients (call centre environment)
Strong understanding of accounting

Job Responsibility

Set payment collection goals and targets, and measure achievements
Monitor and collect past due by contacting clients via telephone or email
Ensure that the correct amounts are collected in a timely manner, resolve account discrepancies to secure client payments
Review accounts, client payments, credit history, and develop new or improved repayment terms
Ensure payment is applied correctly by performing account/payment reconciliations
Maintain and update accurately aging reports to minimize discrepancies, increasing collections and identifying uncollectible amounts
Handle internal and external customers inquiries and resolve account disputes or billing discrepancies to facilitate payment in timely manner
Maintain and update customer database ensuring accuracy and reliability of automated system for billing and receivable
Perform Credit Check for onboarding new clients as per company policy
Verify details and perform all due diligence before opening new accounts

What we offer

Easily accessible by transit
Competitive hourly rate
Inclusive Team Culture
Unlimited Free Access to Udemy online training

Fulltime

New

Parts and Components Specialist

Parts & Components Specialist – Estevan, SK. Are you an experienced Heavy Equipm...

Location

Canada , Estevan

Salary:

Not provided

Randstad

Expiration Date

January 15, 2026

Requirements

Journeyperson Heavy Equipment Technician (HET) certification preferred
3rd or 4th year apprentices may be considered
Previous experience repairing or troubleshooting Caterpillar general line components (asset)
Engine, hydraulic, or transmission rebuild experience (asset)
Familiarity with Caterpillar SIS/ET systems an advantage
Strong mechanical aptitude and a safety-first mindset
Excellent documentation, organizational, and communication skills
Valid Class 5 driver’s license with a clean abstract

Job Responsibility

Perform disassembly and assembly of Caterpillar components including transmissions, drives, brakes, pumps, and valves
Conduct detailed part and component inspections according to OEM reusability guidelines
Utilize Caterpillar SIS and ET daily for diagnostics, technical reference, and documentation
Complete all service documentation accurately and on time (inspection sheets, service reports, add sheets)
Collaborate with Service Supervisors, Lead Hands, and other internal teams to meet production and quality targets
Maintain a clean, safe, and organized work area while adhering to all safety procedures and standards

What we offer

Competitive starting wage with bonus opportunities
Paid breaks, vacation, sick, and flex time
Comprehensive health, dental, and vision benefits
RRSP matching and Employee Share Purchase Plans
Tool and boot allowances + company-provided specialty tools
Relocation assistance or sign-on incentives may be available
CAT Dealer training and career advancement opportunities
Safety-first, team-oriented environment

Fulltime

New

Senior executive - broadcast

Location

India , Mumbai

Salary:

Not provided

Randstad

Expiration Date

January 08, 2026

Requirements

Bachelor’s degree
Minimum 5-7 years of experience in administration or office management
Strong organizational, multitasking, and time-management skills
Excellent written and verbal communication skills
Proficiency in MS Office (Word, Excel, PowerPoint) and office management software
Ability to work independently and as part of a team
Leadership and supervisory experience preferred
Strong problem-solving skills and attention to detail

Job Responsibility

Plan, organize, and oversee daily administrative operations and office activities
Manage office facilities, supplies, equipment, and vendor relationships
Prepare and review reports, presentations, and correspondence
Supervise and mentor administrative and support staff
Liaise with internal departments and external stakeholders to facilitate communication and collaboration
Handle confidential information with discretion and maintain records management systems
Assist in budget planning and monitor administrative expenditure
Support the execution of special projects and events as assigned by senior leadership

UX Engineer, LLM Experimentation Platform

Arize

Location:
United States

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 20, 2025

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