I'm Yaroslav Mar — native Russian and Spanish speaker with near-native English (C2) and working Hebrew. I help teams and individuals publish, persuade, and make sense of what's happening across EN / ES / RU / HE — with precision and no filler.
This website lists my independent services only. Nothing here is legal advice, and I do not provide legal representation or filing services.
I build lightweight internal "hubs" that make multilingual work repeatable: intake → terminology → QA → reporting → export.
Typical modules: glossary workflow, translation QA checks, corpus/KWIC lookup, reusable text blocks, PDF/DOCX export, simple REST APIs, and AI-powered Telegram bots.
Python · Django · PostgreSQL · Docker · APIs · tests
Python · Django · FastAPI/Flask · REST/JSON · PostgreSQL · Docker · CI/CD · Nginx/Gunicorn · Git/GitHub · Bash · OOP · automated tests
Backend development training: Yandex Practicum (Python Developer)
For documents where mistakes are expensive.
Includes: terminology alignment, QA pass, formatting preserved.
For when you need it to sound like a real native wrote it.
Includes: rewrite + tone targeting + 1 revision.
Weekly intelligence-style brief in EN/ES/RU.
Includes: themes, notable posts, shifts vs last week, "what's next," sources.
Sourced brief using open sources.
Includes: timeline, key facts, contradictions/red flags, annotated sources.
A small internal hub (1–3 modules) for a defined workflow.
Includes: scope doc, working build, deployment notes, handover.
Pricing depends on scope; fixed-fee is possible once deliverables are defined.
"The work was done with high quality, and I needed the translation as fast as possible. Yaroslav understood the urgency, took on the documents on a Sunday, and delivered on time."
"I needed a notarized translation of school documents from Argentina. Yaroslav responded quickly, offered a fair price, completed the translation very fast, and met the deadline. Strongly recommend!"
"The work was completed ahead of the deadline and with great quality. Yaroslav even fixed a couple of issues beyond the original scope — thank you for that!"
"Not the first time I've ordered from Yaroslav, and as always — top quality. Everything is excellent, done well and on time. Highly recommend."
"Yaroslav is an excellent specialist. The work (a technical document translation) was done thoroughly and in the shortest time possible. I strongly recommend him!"
"Intelligent, well-educated, punctual, always reachable, and the best rates on the market. Highly recommend!"
Write to me with: language pair, document type, deadline, and goal
I reply with a few questions + a quote (or package recommendation)
Work happens (glossary/QA when relevant)
Delivery + revision (if included)
For project enquiries, collaborations, or speaking invitations:
— or write directly —
Subject suggestion: "EN–RU translation | 12 pages | by Friday"