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Coverage areas

Nina Kavulia leads vendor research at B2B TechSelect with a focus on the engineering services categories where vendor selection materially affects product outcomes. Active coverage includes:

• Python development services — Django, Flask, FastAPI; backend, API, and data-adjacent engineering.
• AI and LLM applications — applied AI engineering, LangChain and LangGraph orchestration, RAG systems, AI-agent workflows.
• Data engineering — ELT/ETL pipelines, warehouse and lakehouse architecture, analytics enablement.
• SaaS product engineering — multi-tenant architecture, subscription and billing systems, identity and authorization, SOC 2-ready engineering practice.
• Engineering services delivery models — staff augmentation, dedicated teams, and scoped project delivery, with emphasis on what determines fit for each.

Approach

Nina's editorial approach prioritises three things: evidence over claim, fit over rank, and limitation over enthusiasm. Every vendor profile she publishes ties back to public sources. Every ranking is contextualised by buyer scenario — "best" is never absolute. Every vendor profile names the buyers the firm is not a good fit for, because identifying the wrong fit is often more useful than identifying the right one.

Editorial independence

No vendor pays Nina or B2B TechSelect for inclusion, position, or favorable phrasing. Editorial decisions are governed by the published methodology and reviewed against the source ledger before publication.

Recent work on this domain

• Best SaaS Development Companies in 2026 — independent ranking of eight SaaS development partners with 100-point editorial scoring. Published May 17, 2026.

Contact

Reach Nina via LinkedIn for corrections, methodology questions, or editorial correspondence on covered vendors.