CSHARK

CSHARK is a Poland-based software development and consulting firm founded in 2014. The company works with enterprises, unicorns, and startups across financial services, manufacturing, and other regulated industries. They deliver custom application development, cloud migration, R&D services, and data integration work—typically on a dedicated team or outsourcing basis.

The firm's portfolio includes recognizable names: Fenergo (regulatory technology for banks), Telenor (telecom), ASA International (microfinance platform across 13 markets), RegenHu (bioprinting), and Nudge (a fintech startup they built an MVP platform for from scratch). A Financial Times and Forbes Diamonds listing suggests they've earned some market visibility.

Services and capabilities

CSHARK structures its work across four service lines. Application Services covers the full lifecycle: custom development, legacy modernization, architecture and DevOps, QA, data integrations, MVP/PoC delivery, and maintenance. The company explicitly targets .NET custom application development and positions itself as an outsourcing extension rather than a pure staffing play.

Cloud & Infrastructure handles transformation, cloud strategy and design, infrastructure build-out, and resilient architecture—bridging on-premises or legacy systems to AWS or other cloud platforms. Integration & Data focuses on data migration, security, privacy, and cross-system connectivity.

The Innovation (R&D) unit does product ideation, usability research, accessibility work, and information architecture. This appears to be where CSHARK supports early-stage validation—they ran a product discovery workshop and built the backlog for KanriSoft before the firm's board decided to invest.

They are AWS Partners and Microsoft Partners, hold ISO 27001 certification, and appear on Clutch with reviews available (though specific review counts are not in the source).

Notable work

Fenergo's CTO praised CSHARK's understanding of fintech and regulatory complexity, noting the team could "provide reliable software solutions in a highly competitive timeframe" for Tier 1 and Tier 2 global banks.

RegenHu, a bioprinting hardware company, reported that CSHARK boosted development velocity significantly: code coverage reached 80% in a few months, and the feature implementation rate more than doubled after the CSHARK team arrived.

Nudge, a fintech startup, had CSHARK build their entire MVP platform and connection service from scratch with minimal technical guidance. The founder noted transparency throughout and praised the team's proactive approach to problem-solving.

VecCtor's CEO said in 25 years of business, he'd never worked with a firm "with this level of professionalism," highlighting their willingness to push back on ineffective approaches rather than simply executing requests.

Other engagements span a fintech cloud migration, a warehouse management system for manufacturing, and tech-for-good work (Polish Smog Alarm with university interns).

How they work

The company frames its model around dedicated outsourcing teams—an extension of your in-house department rather than pure time-and-materials hiring. On the innovation side, they lead product discovery workshops, build backlogs, estimate scope, and conduct design sprints. For ongoing development, they emphasize agile delivery with validated small steps, particularly for legacy modernization. They work with established enterprises managing complex or outdated systems, scale-ups navigating growth infrastructure challenges, and startups under resource constraints.

No explicit pricing or minimum engagement length is mentioned in the source. Client testimonials suggest multi-month engagements (RegenHu's code coverage work took months; Fenergo describes ongoing partnership).

Team and credentials

Adam Skubiszewski is listed as Head of Software Development. Team size is not disclosed. CSHARK holds ISO 27001 certification, is an AWS Partner and Microsoft Partner, and appears in Financial Times and Forbes Diamonds rankings for top B2B companies. They also list Awwwards recognition. The firm has Clutch reviews (specific ratings and count not in source).

The company does not explicitly state English proficiency, though all client work documented is in English and client testimonials suggest fluent communication.