Web Development Expert (Cross-Platform Focus) — Subject Matter Expert
$250 per dayVosyn
- 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:
- Initial Screening: Review of application and preliminary assessment
- Video Interview: In-depth discussion of technical expertise and role expectations
- Technical Panel Interview: Deep dive into technical experience and approach to architecture/design challenges
- Final Selection: Assessment of overall fit and alignment
- 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 (
$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...SuggestedRemote jobHourly payFull timeContract workFlexible hours$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...SuggestedRemote jobHourly payFull timeContract workFlexible hours$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...SuggestedRemote jobHourly payFull timeContract workFlexible hours$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...SuggestedRemote jobHourly payFull timeContract workInternshipFlexible hours$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...SuggestedRemote jobHourly payFull timeContract workFlexible hours- ...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 contractFull timeContract workSeasonal workWork at office
$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$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 timeLocal areaRemote workFlexible hours- ...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 timeInternship
$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 timeLocal area$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 contractFull timeTemporary workInternshipShift workAfternoon shift- ...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 contractFull timeContract workInternshipWork at officeMonday to fridayFlexible hoursAfternoon shift3 days per week
$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 jobHourly payFull timeContract workInternshipFlexible hours- ...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 employmentFull time
$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 timeInternship$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...InternshipShift work- ...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 jobHourly payLong term contractFull timeInternshipImmediate startWorldwide
$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 payLong term contractFull timePart timeInternshipImmediate startRemote workWorldwideFlexible hours$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 paySummer workWeekend workAfternoon shiftWeekday work$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 contractFull timeSummer workInternshipWork at officeFlexible hoursWeekend work$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- ...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...InternshipWork at office
- ...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 timeInternshipWorldwide
$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 contractFull timeFor contractorsWork at officeLocal areaFlexible hours2 days per week$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 timeFor contractorsFlexible hours$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 timeInternship$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 employmentFull timeContract workWork at officeRemote workMonday to fridayFlexible hours$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 employmentFull timeRelocation package- ...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 contractFull timeInternship
- ...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 officeRemote work
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!


