Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Web Development Expert (Cross-Platform Focus) — Subject Matter Expert

$250 per day
Full-time

Vosyn

Etobicoke, ON
  • Remote job

Job Title: Full-Stack Web Development Expert (Cross-Platform Focus)

Level: Senior SME

Department: Software Development

Status: Contract (10-15 hours/week)

Work location: Fully Remote

Compensation:  Hourly ($250)

Company Overview: At Vosyn, we embrace the exciting, game-changing world of Artificial Intelligence, driving innovation and pioneering impactful projects across various industries. Our incubator, AI Venture Lab, nestled in the heart of Office146.com, is a crucible of entrepreneurial spirit, supported by intelligent processes and industry-leading best practices. We believe in fostering a culture of flexibility, continuous improvement, and solution-focused strategies. Here, every idea is welcomed, nurtured, and has the potential to scale to new heights. Currently, we're at the forefront of a significant IPO endeavor, a truly unicorn in the making. We invite you to be part of our journey and leave your imprint on the future of AI. At Vosyn, you will have the opportunity to engage with a fast-growing global organization with diversity of thought, experience, and cultures.

About the Role: We are seeking an experienced Full-Stack Web Development Expert to serve as a trusted advisor and mentor for our tech leads and team leads. In this role, you will provide strategic technical guidance across the entire web development stack, sharing your deep expertise in modern web technologies, architectures, and full-stack development best practices. Your guidance will ensure our projects are performant, scalable, maintainable, and aligned with industry standards, particularly in the realm of cross-platform application development.

Key Responsibilities:

  • Guide the team in evaluating and adopting optimal tech stacks for full-stack web development, considering both current and emerging technologies, with a focus on cross-platform compatibility
  • Provide expert-level mentorship on all aspects of cross-platform web application development, from front-end frameworks and state management to back-end architecture and API design
  • Lead architectural decisions and design patterns to optimize scalability, performance, maintainability, and security across the entire application stack
  • Advise on database selection and management strategies, including both SQL and NoSQL solutions
  • Share best practices for API design and development, including RESTful principles, versioning, and documentation
  • Offer guidance on implementing media streaming solutions using DASH and HLS
  • Provide expertise in implementing robust authentication and authorization mechanisms
  • Share insights on front-end performance optimization techniques and testing methodologies

Required Qualifications:

  • 7+ years of proven experience in full-stack web application development, with emphasis on cross-platform applications
  • Strong proficiency in modern JavaScript frameworks like Next.js and React; familiarity with Electron
  • In-depth understanding of client-server architecture, containerization using Docker, backend REST API development
  • Expertise in Django and Python
  • Experience with both relational (PostgreSQL, MySQL) and non-relational (MongoDB, Cassandra) databases
  • Hands-on expertise in implementing media streaming solutions using DASH and HLS
  • Proven experience in implementing secure coding practices and authentication/authorization mechanisms
  • Strong understanding of various testing methodologies and tools
  • Demonstrated success in providing technical leadership and mentoring
  • Excellent communication and problem-solving skills

Preferred Qualifications:

  • Experience with WebSocket-based real-time systems
  • Expertise in front-end performance optimization techniques
  • Experience with cloud deployment and scaling strategies
  • Knowledge of modern state management solutions
  • Experience in mentoring development teams

Additional Perks:

  • Be part of the invigorating journey of a pre-seed AI startup in stealth mode
  • Engage directly with senior management and strategic advisory board members
  • Gain valuable experience in the bleeding-edge AI space
  • Remote-first culture with flexible working arrangements

DEI and Workplace Safety: At Vosyn Inc., we are committed to fostering a diverse, equitable, and inclusive workplace where every employee feels valued and supported. We believe that diversity of thought, background, and experience enriches our company culture and enhances innovation. We are an equal-opportunity employer and encourage candidates from all walks of life to apply. As part of our commitment to creating a safe and healthy work environment, we prioritize workplace safety, adhering to all relevant regulations and promoting a culture of responsibility. We believe that a safe and inclusive workplace is essential for the well-being and success of our team members.

Recruitment Process:

  1. Initial Screening: Review of application and preliminary assessment
  2. Video Interview: In-depth discussion of technical expertise and role expectations
  3. Technical Panel Interview: Deep dive into technical experience and approach to architecture/design challenges
  4. Final Selection: Assessment of overall fit and alignment
  5. Offer and Onboarding: Equity compensation details and onboarding process.

Join a dynamic global organization that champions diversity in thought, experience, and culture. Our team is composed of top experts from around the world. We invite you to leverage your expertise, mentor future leaders, and thrive with us in this exciting journey.


  Apply Now:
Please apply via our career site: Vosyn Careers (

Vacancy posted 8 days ago
Similar jobs that could be interesting for youBased on the Web Development Expert (Cross-Platform Focus) — Subject Matter Expert in Etobicoke, ON vacancy
  • $250 per day

     ...Job Title: Business Development Subject Matter Expert  Level: Senior Strategic Department: Business Development Status: Contract (10-15 hours/week) Work Location: Fully Remote Compensation: Hourly ($250) Company Overview: At Vosyn, we embrace the exciting... 
    Suggested
    Remote job
    Hourly pay
    Full time
    Contract work
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  • $250 per day

     ...Job Title: Finance — Subject Matter Expert Level: Senior Advisory Department: Finance Status: Contract (10-15 hours/week) Work Location...  ...culture of flexibility, continuous improvement, and solution-focused strategies. Here, every idea is welcomed, nurtured, and has... 
    Suggested
    Remote job
    Hourly pay
    Full time
    Contract work
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  • $250 per day

     ...Job Title: Marketing & Communication Subject Matter Expert  Level: Senior Advisory Department: Marketing & Communications Status: Contract...  ...culture of flexibility, continuous improvement, and solution-focused strategies. Here, every idea is welcomed, nurtured, and has... 
    Suggested
    Remote job
    Hourly pay
    Full time
    Contract work
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  • $250 per day

     ...Job Title: HR Recruiter — Subject Matter Expert Level: Senior Team: People & Culture Status: Contract (10-15 hours/week) Work location...  ...culture of flexibility, continuous improvement, and solution-focused strategies. Here, every idea is welcomed, nurtured, and has... 
    Suggested
    Remote job
    Hourly pay
    Full time
    Contract work
    Internship
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  • $250 per day

     ...Job Title: ML Engineer (Speech-to-Speech) — Subject Matter Expert Level: Senior SME Department: Software Development Status: Contract (10-15 hours/week) Work location: Fully Remote Compensation: Hourly ($250) Company Overview: At Vosyn, we... 
    Suggested
    Remote job
    Hourly pay
    Full time
    Contract work
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  •  ...Summary The primary focus of this position is to drive sales and...  ...and implementing account development strategies within assigned regions...  ...with corporate growth objectives—subject to approval by the VP of Sales...  ...: Work effectively with cross-functional teams, including Pricing... 
    Long term contract
    Full time
    Contract work
    Seasonal work
    Work at office

    XTL Transport, Logistics, Distribution

    Etobicoke, ON
    1 day ago
  • $55k - $65k per year

     ...Prophix At Prophix, we’re building the platform that helps finance teams stop managing...  ...smarter and move faster. As a Business Development Representative at Prophix, you will be at...  ...earned a seat at the table on a decision that matters. Why Join Prophix? Prophix is... 
    Internship

    Prophix

    Etobicoke, ON
    13 days ago
  • $70k - $80k per year

     ...Best Workplaces™ in Retail & Hospitality 2025 Learning and Development Specialist - Hybrid Remote Reports to: Learning and Development...  ...Administer and evolve the LMS and other learning systems and platforms. Own content governance including version control, naming... 
    Full time
    Local area
    Remote work
    Flexible hours

    Cobs Bread

    Etobicoke, ON
    11 hours ago
  •  ...One™, our Financial Performance Platform. We bring planning, reporting,...  ...automation together so people can focus on higher-value work instead of...  ...people lead the decisions that matter.  We're headquartered in the...  ...partnership with Amazon Web Services (AWS). Turning our AWS... 
    Full time
    Internship

    Prophix

    Etobicoke, ON
    11 hours ago
  • $80k per year

     ...an experienced healthcare sector Business Development Manager to help drive the next phase of...  ...As we grow into a multi-clinic healthcare platform across Ontario, you'll play a key role in...  ...Foundation Health is a modern healthcare company focused on making high-quality care more... 
    Full time
    Local area

    Foundation Health Canada

    Etobicoke, ON
    8 days ago
  • $78k - $88k per year

     ...drive policy change. Job Title: Senior Development Officer, Major Gifts Department :...  ...a result-oriented, front-line fundraiser focused on major donors in the $10K+ range. The position...  ..., evaluate, and learn. Customer-focus: Anticipate, understand, and respond to the... 
    Long term contract
    Full time
    Temporary work
    Internship
    Shift work
    Afternoon shift

    Daily Bread Food Bank

    Etobicoke, ON
    1 day ago
  •  ...educates the public, and helps drive policy change.  Job Title: Development Officer, Corporate and Community Partnerships  Department :...  ...Proven ability to close gifts in the $1,000+ range. Customer-focus: Anticipate, understand, and respond to the needs of internal and... 
    Long term contract
    Full time
    Contract work
    Internship
    Work at office
    Monday to friday
    Flexible hours
    Afternoon shift
    3 days per week

    Daily Bread Food Bank

    Etobicoke, ON
    1 day ago
  • $250 per day

     ...Job Title: Partnership Development — Master-Level Internship Level...  ...continuous improvement, and solution-focused strategies. Here, every idea...  ...into a market-leading platform through sophisticated fundraising...  ...Our team is composed of top experts from around the world. We... 
    Remote job
    Hourly pay
    Full time
    Contract work
    Internship
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  •  ...Today, we are one of Canada’s largest industrial and residential developers, having completed more than 35 million square feet of new development across BC, Alberta, southern Ontario, and Las Vegas, Nevada. With multiple industrial projects currently under construction and 9... 
    Permanent employment
    Full time

    beedie

    Etobicoke, ON
    21 days ago
  • $74k - $93.5k per year

     ...One™, our Financial Performance Platform. We bring planning, reporting,...  ...together so people can focus on higher-value work instead of...  ...people lead the decisions that matter. We're headquartered in the...  ...collaboratively with Customer Support subject matter experts to write how-to... 
    Full time
    Internship

    Prophix

    Etobicoke, ON
    11 hours ago
  • $100k - $150k per year

    We are looking for an entrepreneurial, high-performing Business Development Manager for our client's cloud-native physical security...  ...on-premise security architectures over to modern, unified cloud platforms. - Navigate complex, high-value enterprise sales cycles ranging... 
    Internship
    Shift work

    Randstad

    Etobicoke, ON
    more than 2 months ago
  •  ...Job Title: Business Development & Sales Outreach — Master-Level Internship Level: Master...  ...flexibility, continuous improvement, and solution-focused strategies. Here, every idea is welcomed,...  ...positioning. Collaborate with cross-functional teams to implement strategic initiatives... 
    Remote job
    Hourly pay
    Long term contract
    Full time
    Internship
    Immediate start
    Worldwide

    Vosyn

    Etobicoke, ON
    8 days ago
  • $32 per hour

     ...Job Title: Strategy & Business Development Intern - – Startup Programs...  ...Inc., not NovaForge, and are subject to Vosyn's equity plan and required...  .... Collaborate with cross-functional teams to implement...  ...you don't check every box—what matters most is your passion for learning... 
    Hourly pay
    Long term contract
    Full time
    Part time
    Internship
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    Vosyn

    Etobicoke, ON
    8 days ago
  • $18 - $23 per hour

    CSP is one of the largest and fastest growing private youth sports operators in the GTA. We provide fun, engaging experiences, creating lasting memories for the youth and families in our communities! We're looking for energetic, enthusiastic, and kid-friendly soccer coaches...
    Hourly pay
    Summer work
    Weekend work
    Afternoon shift
    Weekday work

    Community Sports Partners

    Etobicoke, ON
    a month ago
  • $55k - $58k per year

     ...food rescue organization and the expert in perishable food recovery....  ...United Nations’ Sustainable Development Goals (SDGs), making every day...  ...Second Harvest’s brand. With a focus on writing, this role will support...  ...and compelling across all platforms.  We are looking for a polished... 
    Long term contract
    Full time
    Summer work
    Internship
    Work at office
    Flexible hours
    Weekend work

    Second Harvest

    Etobicoke, ON
    18 days ago
  • $175k - $200k per year

     ...At Prophix, we’re building the platform that helps finance teams stop...  ...lead a high-performing CS team focused on helping Prophix customers...  ...accountability for team performance, development, and succession planning. ·...  ...· Develop and execute global, cross-product customer success... 
    Internship

    Prophix

    Etobicoke, ON
    6 days ago
  •  ...At Prophix, we’re building the platform that helps finance teams stop...  ...talented group of engineers, domain experts, and fellow architects, you...  ...as Claude Code to accelerate development end-to-end and critically...  ...implementation standards. Contribute to cross-functional agile teams to... 
    Internship
    Work at office

    Prophix

    Etobicoke, ON
    27 days ago
  •  ...At Prophix, we’re building the platform that helps finance teams stop...  ...excellence and genuine customer focus · Partner closely with Sales...  ...in any market · Drive cross-functional alignment with Product...  ...Lead hiring, onboarding, and development programs that grow the Solutions... 
    Full time
    Internship
    Worldwide

    Prophix

    Etobicoke, ON
    11 days ago
  • $140k - $170k per year

     ...planning and operations to people-focused support functions. Together,...  ..., risk mitigation, and cross-functional collaboration will...  ...Serve as a key advisor on tax matters, collaborating with North American...  ...Strategy Alignment. Champion the development and execution of innovative... 
    Long term contract
    Full time
    For contractors
    Work at office
    Local area
    Flexible hours
    2 days per week

    Sodexo Canada

    Etobicoke, ON
    11 hours ago
  • $200k - $220k per year

     ...trusted safety and monitoring platform – one that delivers peace of mind...  ...– ensuring that when it matters most, help is not just reachable...  ...commitments, sequencing, capacity, and cross-team dependencies across the...  ...and agentic workflows, with a focus on measurable value,... 
    Full time
    For contractors
    Flexible hours

    Roadpost

    Etobicoke, ON
    5 days ago
  • $110k - $120k per year

     ...Prophix At Prophix, we’re building the platform that helps finance teams stop managing...  ...internal teams and customers, bringing subject matter expertise and engaging delivery to...  ...trends and best practices in learning and development, with a focus on the evolving role of AI... 
    Full time
    Internship

    Prophix

    Etobicoke, ON
    28 days ago
  • $60k - $95k per year

     ...are investing in a modern data platform that will ingest, organize,...  ...Responsibilities · Database Architecture & Development - Select and implement RDBMS...  ...systems. - Implement APIs/web services to interface with...  ...- Gather requirements from cross-functional teams; convert... 
    Permanent employment
    Full time
    Contract work
    Work at office
    Remote work
    Monday to friday
    Flexible hours

    Dexotech Power

    Etobicoke, ON
    7 days ago
  • $100k - $115k per year

     ...with a strong emphasis on coaching and development ~ Flexibility and adaptability in a dynamic...  ...application forums. With his industry-focused portfolio, Andrew continues his career...  ...top-notch consultants, each acting as a subject matter expert in their chosen field. As a result... 
    Permanent employment
    Full time
    Relocation package

    Stoakley-Stewart Consultants

    Etobicoke, ON
    a month ago
  •  ...AI-powered tax assistant and preparation platform that transforms how accounting firms and...  ...stage, highly collaborative, and deeply focused on solving real, high-impact problems...  ...Role We're hiring a Tax Specialist - Subject Matter Expert (US Taxes) to shape Marble's product... 
    Long term contract
    Full time
    Internship

    Marble Technology

    Toronto, ON
    11 hours ago
  •  ...tech background — through cohort-based programs built on our own platform and curriculum, developed in partnership with Nebius AI. Our team...  ...instructional text and it needs to be unambiguous. ~ Comfort collaborating cross-functionally with instructional design, and explaining technical... 
    Work at office
    Remote work

    TripleTen

    Toronto, ON
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Web Development Expert (Cross-Platform Focus) — Subject Matter Expert. Be the first to apply!