We are a fast-growing tech company with a portfolio of SaaS products serving diverse industries. Innovation, performance, and design precision are core to our values. As we scale, we are looking for talented Senior Fullstack Developers to join our team and take a key role in crafting highly performant, maintainable, and user-focused web applications.

Key Responsibilities
 

• Contribute to both backend (NestJS) and frontend (NextJS) systems by designing and building scalable, secure, and maintainable features, while leading architecture decisions across services, APIs, and cross-stack boundaries. 

• Champion clean code, modular design, and testability through active contribution, reusable components, and mentoring. 

• Drive system-level decisions around performance, observability, and scalability, and ensure alignment between product goals and technical implementation. 

• Own and enforce code quality via reviews, maintain CI/CD reliability, and collaborate closely with DevOps to ensure release stability and consistent environments. 

• Monitor and optimize system performance, define logging and alerting standards, and lead incident response and continuous improvement efforts. 

• Work closely with product, QA, and designers to unblock delivery, while mentoring engineers and fostering technical alignment across squads.

Requirements

About HSO

HSO are a leading Microsoft Dynamics Gold partner who were founded in 1987 specialising in sectors such as Retail, Rental, Manufacturing, Professional Services and Local Government. With a head count of over 280 employees in the UK, winning multiple awards such as 2020 Microsoft Partner of the Year, Best Tech company 2021 and Top 3 Large Companies to work for 2021 our reputation in the Dynamics Market is higher than ever. Prioritizing customer satisfaction, our expertise and pragmatic approach to each customer’s business needs enable us to provide a 100% reference-able solution, supported by award winning 24-hour support. Our recruitment moto has always been – ‘We don’t want good people to just join us, we want them to stay with us’. Ensuring our employees are challenged, supported and engaged in our wider family is key to our continued success – we have a designated Learning and Development Team who are continuously offering the best training on the market, combined with an Engagement Team who are creative in ways we can have social activities virtually. From online chess tournaments to coffee mornings, to Netflix and book clubs, virtual singing classes, online yoga – the list is endless!

Requirements

Do you want the challenge — and the reward — of building your own book of business?

At Keycafe, we’re looking for an Account Executive who thrives on creating new opportunities, closing deals, and owning an entire territory or industry segment. This isn’t account management or order processing — it’s a chance to be entrepreneurial inside a growing SaaS/IoT company and essentially build a business of your own.

What You’ll Do

• Own a market — you will be focused on the UAE / Middle East market, and you’ll be responsible for growing our top segments as if it were your own business.
• Run high-impact demos that clearly show prospects how our SmartBox product solves their operational challenges.
• Drive the full sales cycle: prospecting, outreach, demos, negotiation, and close.
• Experiment and adapt — try new outreach methods, refine your pitch, and find creative ways to break through.
• Collaborate across teams to ensure smooth handoffs and long-term customer success.

Why Join Keycafe

Are you a creative marketer who loves experimenting across channels to find what truly drives growth?

Keycafe is looking for a Marketing Coordinator to own our German-language marketing efforts and accelerate our brand presence across Germany. In this role, you’ll execute multi-channel campaigns, craft persuasive content in professional business German, and uncover new opportunities that expand our reach within key industries.

If you enjoy working across the full funnel, thrive in a fast-moving SaaS/IoT environment, and want to play a meaningful role in driving measurable results, this is your chance to make a global impact.

Are you a creative marketer who loves experimenting across channels to find what truly drives growth?

Keycafe is looking for a Marketing Coordinator to own our French-language marketing efforts and accelerate our brand presence across France. In this role, you’ll execute multi-channel campaigns, craft persuasive content in professional business French, and uncover new opportunities that expand our reach within key industries.

If you enjoy working across the full funnel, thrive in a fast-moving SaaS/IoT environment, and want to play a meaningful role in driving measurable results, this is your chance to make a global impact.

Do you thrive on meeting people, creating new opportunities, and building momentum on the ground?

At Keycafe, we’re looking for a Field Sales Representative who loves in-person outreach, hands-on demonstrations, and high-activity field sales. You’ll be the face of Keycafe in cities across the U.S., introducing businesses to our SmartBox technology and generating qualified leads for our Account Executive team.

This is a fast-moving, entrepreneurial role perfect for someone who excels in door-to-door engagement, communicates with confidence, and gets energized by showcasing innovative technology directly to customers.

What You’ll Do

• Conduct door-to-door outreach, cold calling, and in-person demos to build interest in Keycafe solutions.
• Generate qualified B2B leads across verticals such as automotive, hospitality, property management, retail, and public sector.
• Deliver live product demonstrations showcasing SmartBox features and operational benefits.
• Qualify leads and schedule follow-up demos or calls for Account Executives.
• Maintain accurate activity logs and funnel details within the CRM.
• Collaborate with AEs and marketing to refine messaging and strengthen territory coverage.
• Attend trade shows, conferences, and business events as a Keycafe brand ambassador.
• Continuously research and identify new local business opportunities.

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.

We are looking for a SIRA-Certified Engineer who can roll up their sleeves and get hands-on with ELV system design. This role suits someone who enjoys building smart, compliant, and neat system layouts—not just supervising work from afar.

What You’ll Do

• Prepare detailed ELV drawings (CCTV, Access Control, Structured Cabling, Fire Alarm, etc.)
• Ensure designs comply fully with SIRA standards and requirements
• Manage submissions, amendments, and approvals within the SIRA portal
• Work directly with project and site teams to support implementation and inspections
• Coordinate with suppliers and internal stakeholders to ensure project readiness
• Maintain clean documentation and compliance records

Requirements

We are looking for a Senior DevSecOps who will help make our cloud infrastructure safe, stable, and automated. You will work together with the development, platform, and security teams to add security at every step of product creation.

This is a great chance to grow in security automation, improve processes, and bring modern DevSecOps practices into the company.

Requirements

Must-Have Skill

🔗 Senior EVM & Web3 Engineer - Enterprise Distributed Ledger

Location: Remote - US - Open to Europe if happy to overlap with EST

Compensation: Competitive

We are hiring on behalf of our client who is a fast-growing software company dedicated to supporting and servicing an open source, proof-of-stake platform that is EVM-compatible. This network is specifically built to meet the needs of enterprise and Web3 applications, prioritizing speed, security, and stability. They are seeking a seasoned Smart Contract Engineer to join their team, focusing on developing both the core Java services and the Web3 APIs (JS/TS) that process transactions across their network.

You will be a high-impact, hands-on programmer, spending approximately 80% of your time designing, coding, and testing. Your primary focus will be enhancing EVM compatibility and improving the developer experience (DevEx) for users migrating from other EVM chains. This includes both low-level transaction processing in Java and high-level API development for public consumption.

Key Responsibilities: