On The Spot Development

On The Spot Development is a Warsaw-based offshore development firm founded in 2016 with a second office in London. The company has 200 employees and specializes in building dedicated R&D teams in Poland for startups and scale-ups, backed by founders who've built startups themselves. Instead of the traditional outsourcing model—where clients often receive junior developers at murky rates with constantly shuffled teams—On The Spot pitches long-term partnerships with transparent pricing, dedicated engineers who stay assigned to a single client, and the option to buy out your team from day one. The company claims 90% of customers come from referrals and says 8 out of 10 partnerships last over three years.

Services and capabilities

On The Spot offers three core services. The Offshore Development Center is the main offering: On The Spot recruits, hires, and manages a dedicated R&D team in Poland on your behalf, covering recruitment, HR, office space at their Warsaw location (Prosta 51), payroll, accounting, legal support, and benefits administration. The Custom Software Development service brings in engineering resources on an ad-hoc basis to accelerate existing projects. The CTO as a Service offering provides a fractional CTO (led by Anton Vasiljev, the company's Chief Technology Officer) to guide early-stage startups through product strategy, architecture decisions, team building, and fundraising conversations—typically from idea through PoC, MVP, and scaling phases.

For Tryb, a link-in-bio SaaS platform, On The Spot deployed a fractional CTO and one full-stack developer; the team delivered a feature-rich MVP in five months using Vue.js, Node.js, Google Cloud, Firebase, Stripe, and Algolia. For Orca Security, a cloud security company, On The Spot scaled a 55-person R&D team in Poland while improving development efficiency by 40%. ShardX, a blockchain security startup, got fractional CTO support plus a dedicated team that built an MPC library before the company was acquired. For AITHENA, a pharmaceutical startup, fractional CTO support and MVP development launched the product.

Notable work

Orca Security stands out: On The Spot built and scaled a 55-engineer center from scratch, delivering measurable efficiency gains (40% improvement cited by the customer). The partnership began in 2019 and remains active. Tryb launched from concept to revenue-generating MVP in five months with a two-person offshore team. The customer, Daniel Levine (CEO), noted the partnership lasted five years and called it "trusted and reliable." ShardX moved from a two-person dedicated team (2018–2021) to acquisition by a major crypto exchange. An eCommerce client scaled through On The Spot from a small team to 25+ engineers at peak, powering growth into a global platform. Across the portfolio, 30 R&D teams have been built; customers have generated 4 acquisitions, 1 merger, and 3 unicorns.

How they work

On The Spot structures engagements around a dedicated, long-term model. Clients get a fixed team assigned full-time, with transparent cost visibility: salaries are itemized, and fees are separate and clearly disclosed. The company handles all back-office work—office space, HR, payroll, benefits, equipment, legal and accounting support—so clients don't manage contractors abroad. Teams are located at the company's Warsaw office. For fractional CTO engagements, availability scales with client need; for offshore centers, team size is billed based on headcount and seniority. Contract terms include buyout rights from day one, reflecting On The Spot's confidence in retention through relationship strength rather than lock-in. The company cites 80% customer retention over three years and 90% of new business from referrals.

Team and credentials

On The Spot was founded in 2016 by Yegor Tsirkun (CEO), Anton Zhuravsky (co-founder and technical advisor), and Lior Shiff (co-founder and chairman). Anton Vasiljev serves as Chief Technology Officer and leads the fractional CTO offering. Leadership also includes Liza Makarevich (Chief Success Manager), Yana Tsiareshchanka (Recruitment Lead), Natallia Budai (HR Lead), and Katya Shkor (PR & Communications Lead). The company employs 200 people across Warsaw and London. On The Spot does not list ISO 27001, SOC 2, or other formal certifications in available materials, nor Clutch or G2 ratings. The company runs TechSpot, a community of tech talks on systems design and software architecture, and hosts a podcast called 137 alongside a Team Lead Club for peer learning among engineering managers.