B2B

Architect/CTO

remote

UPSTARS is a product IT company where both people and brands take off 🚀 Our main focus is tech solutions and B2B services for international clients. We launch award-winning iGaming projects that shine bright in industry rankings ✨

And yes — supporting a transparent, legal Ukrainian market is a must. That’s why we became the third company in Ukraine to receive a B2B license for providing iGaming services.

In 2025, we’re scaling fast — both projects and our dream team. So now we’re looking for a Middle Office Manager to join our Workplace Experience crew and help make magic happen.

✅ Main tasks

define and drive the technical strategy of the GameDev domain in collaboration with the CTO and domain lead;
coordinate the work of Frontend, Backend, QA, DevOps team leads and other engineering functions;
design the architecture of game servers, game logic modules, RNG systems, statistics, and logging;
define standards and approaches for building high-load gaming systems that perform reliably during peak traffic;
play a key role in optimizing infrastructure and communication protocols, improving throughput and latency resilience;
implement development, testing, CI / CD, monitoring, incident management, and operational stability processes;
ensure overall code quality, SLI / SLO compliance, performance analysis, and reliability audits;
develop team leads through mentoring and coaching, build competence groups, and align engineering practices;
shape engineering culture: design reviews, standards, documentation, and transparent processes;
organize B2B technical support (API, integrations, incidents, emergency changes, on-call rotations);
collaborate with product, design, analytics, SRE, and other teams to achieve business goals;
evaluate technical decisions from a business perspective: cost-efficiency, risks, SLA, financial impact;
participate in hiring, onboarding, and performance reviews of engineers;
build resilient and secure systems considering access control, isolation, change management, and internal threats.

💪 Mandatory requirements

7+ years of experience in building complex products (GameDev / Backend / High-load / Frontend rendering);
strong understanding of game server architecture: game logic, RNG, game types (slots, crash, live), logs, and statistics;
experience in optimizing high-load systems: peak traffic, caching, load balancing, communication protocols;
understanding of security: threats, attack vectors, internal risks, access control, event auditing;
strong frontend expertise: PixiJS, WebGL approaches, rendering, optimization for low-end mobile devices;
hands-on experience with monitoring, alerting, and logging tools: Sentry, Grafana, Prometheus, Loki, custom events and device metrics;
experience in supporting B2B integrations: API, SLA, on-call, incident handling procedures;
knowledge of caching strategies and provider selection for different player geographies;
technical leadership experience: managing team leads or senior engineers;
systems thinking, pragmatism, ability to make decisions under pressure, fintech-level responsibility;
experience with automation;

understanding of SLI / SLO, observability principles, fault tolerance, and chaos resilience.

🤞 Nice to have

Experience in IT.
Hands-on experience opening or closing offices.
Event support background.
Familiarity with Jira, Slack, Confluence, HiBob.

🌟 Our Values & Perks

Team spirit – we work, celebrate, and make an impact together.
Positivity – we enjoy what we do and love feedback, great vibes, and cool challenges.
Opportunities – clear career paths, performance reviews, mentoring, and personal growth programs.
Courage – we take on star-level challenges and ambitious goals.
Openness – we talk straight, value feedback, and encourage proactivity.
Innovation – we build tech solutions from scratch and automate routine stuff to focus on growth.
Freedom over bureaucracy – less red tape, more action.

🍪 Must-have

Work where you feel safe and comfortable — in our offices or remotely.
Official employment in Ukraine or Poland — we’ll help with all the paperwork.
20 paid vacation days, national holidays, and sick leaves — we believe in work-life balance.
Medical insurance at top clinics and psychologist coverage via Pleso.
Benefit Café – spend your monthly allowance on hobbies, sports, or anything you love.
Fun events, workshops, team buildings, and corporate parties.
Learning budget, corporate English, workshops, and online library access.