Nephilim

Nephilim is a Poland-based software house founded by experienced developers who work across multiple domains and technology stacks. Based in Poznań, the firm positions itself as a technological partner handling the full arc of product development—from design through deployment. The company claims to work in teams built on experience, openness, commitment, focus, and respect, and emphasizes that software development extends beyond writing code to include product design, feature prioritization, and risk management.

Services and capabilities

Nephilim's service portfolio spans three main areas: mobile apps, web applications, and desktop software.

For mobile development, they work with native platforms. iOS projects use Swift; Android projects use Kotlin and Java. The firm has shipped production apps on both leading platforms.

Web development is their largest stated capability. They build single-page applications (SPAs), REST APIs, and content management systems. The technology list includes React, Angular, TypeScript, JavaScript, .NET, Java, Ruby on Rails, and PHP. They have hands-on experience with AWS and Microsoft Azure for cloud infrastructure.

Desktop applications round out the portfolio—Windows and macOS targeted work.

Notable work

One client testimonial mentions that Nephilim developed two native mobile apps over the course of a year. The client described delivery quality as consistent and on-time, and noted the team brought unsolicited solutions to complex problems. Another reference describes work on a platform that onboarded over 300 customers and 5,000 workers. That team participated in weekly syncs with the client, demonstrated proactive problem-solving, and maintained what the reference called a "can do" mindset. No quantified outcomes (performance gains, cost reductions, etc.) are disclosed.

How they work

Nephilim operates from a single office location in Poznań. The website mentions they work "in the office," implying co-located teams, which they cite as enabling faster skill-sharing and problem-solving. The company structures engagement around weekly client meetings to address blockers. No pricing, minimum engagement length, or formal engagement models are published on their site. Clients are invited to contact them directly.

Team and credentials

Team size is not disclosed. The company describes itself as founded by "long-time developers" but does not name founders or provide headcount. A careers section lists job levels (Junior, Regular, Senior, Expert) and their skill requirements, suggesting an internal grading system but no public org chart or team composition details. No certifications, partner status, or awards are mentioned. No Clutch, G2, or similar third-party ratings appear in the source material.