Jobs at Djinni

We are looking for a Senior Python/Django Architect to join a long-term project for a Norwegian client in the financial sector.

👥 Team: 10 people — Backend, Frontend, Full-Stack, BA, UX & DevOps

📍 Location: Poland / CET

⏰ Engagement: Full-time, starting in September

✈️ Occasional travel to Norway  may be possible

💼 Project

A specialized cloud-based practice management and workflow platform for accounting firms and financial professionals. The solution centralizes task management, client communication and compliance processes such as AML/KYC.

👤 What we're looking for

A strongly technical Architect who can not only design solutions, but also challenge existing approaches, advise the client, set technical direction and solve complex problems.

🎯 Key requirements:

• Strong expertise in Python & Django (4.2)

• Django REST Framework, Django Filters, Celery

• Django ORM & data modelling

• Strong PostgreSQL & Redis experience

• Proven experience with performance & scalability

• Experience scaling existing Django systems without a "big-bang rewrite"

• Technical & architecture assessments

• Database optimisation

• Experience designing architecture for complex systems

• Good understanding of microservices

• AWS / AWS Fargate

• CI/CD — CircleCI is a plus

• Git / GitHub

• Strong communication with technical & non-technical stakeholders

• Ability to explain architectural decisions, trade-offs and risks

• Client-facing / technical advisory experience

• English C1

🛠 Tech stack:

Python · Django 4.2 · DRF · Django Filters · Celery · PostgreSQL · Redis · AWS Fargate · Angular 21 · TypeScript · RxJS · CircleCI · GitHub

📌 Responsibilities:

• Define and evolve the overall system architecture

• Translate business needs into technical direction

• Drive architectural decisions and technical priorities

• Identify risks and scalability challenges

• Guide engineering teams and provide technical mentorship

• Solve complex technical problems

• Contribute to technical roadmaps

• Work closely with the client and other stakeholders

• Ensure scalability, consistency and quality across the system

We are a media buying agency with 6+ years of experience:
💰 $2M+ monthly spending
📱 Running Web & In-App traffic for Android/iOS
🧠 Planning to launch Google / Meta / TikTok buying
🤖 Our own mobile apps (Android/iOS) with ad monetization
👩‍💻 In-house production: scripts, art, motion, landing pages
📌 Planning to automate routine creative processes (testing, uploading, pausing)
📊 Proprietary antifraud systems and auto-bidders
📎 Direct collaboration with founders with 15+ years of experience

Requirements:

🔸 Senior+ UA specialist in In-App
🔸 Strong knowledge of Mintegral, AppLovin, Unity, IronSource, Liftoff, etc.
🔸 Proven experience scaling campaigns from scratch
🔸 Proficiency with Appsflyer / Adjust / AppMetrica
🔸 Experience with ad, hybrid, and subscription monetization
🔸 Ability to adapt strategies for each source, GEO, and audience

Responsibilities:

▪️ Define the strategic direction of UA and identify new growth opportunities
▪️ Quickly explore new traffic sources, evaluate potential, and integrate them into workflows
▪️ Search for and scale new sources (TapJoy, Adjoe, MiAds, Kwai, etc.)
▪️ Optimize media buying and improve efficiency of current channels
▪️ Test hypotheses, identify growth points, and optimize creative performance
▪️ Lead and mentor a team of traffic managers
▪️ Manage and optimize budgets starting from $1M+ monthly

Nice to have:
🔸 Experience with alternative sources (TapJoy, Adjoe, MiAds, Kwai, etc.)
🔸 Experience with Web/Social/Google traffic
🔸 Experience managing and scaling a UA team

We offer:

▪️ Proprietary applications in the crypto and utility categories (Android/iOS) with advertising monetization
▪️ Working with large budgets — $600–700K+/month
▪️ We will add to your stack: skills in effective CPI purchasing with large budgets, thanks to real-time managed bidding via API and auto-optimization
▪️ Our own anti-fraud solutions and auto-bidders — all through analysts
▪️ No time wasted on routine tasks — a separate team takes care of launching and running advertising campaigns
▪️ Creative in-house team — scriptwriters, artists, and motion designers do everything quickly and on task
▪️ Work under the guidance of an expert with over 10 years of experience. 
▪️ Remote format of interaction. 
▪️ Schedule: 10:00 a.m. to 7:00 p.m. Cyprus time.
▪️ 20 working days of vacation and paid sick leave.
▪️ Salary from $5000 (depends on seniority level)
▪️ We work according to the Cyprus holiday calendar.
▪️ Probationary period is 3months. 
▪️ The team consists of strong specialists. We value initiative, responsibility, teamwork, and the desire for growth.

We are looking for a Motion Designer who will be responsible for creating and refining video creatives for advertising campaigns.

This position is for you if you want to develop your skills in advertising video production, performance-driven creatives, and see the impact of your work on campaign results.

Who are we?

We are a team with over 8 years of experience in traffic purchasing and monetization. In recent years, we have been actively developing our own mobile applications (Android/iOS). Video is an important part of our advertising funnel, so we are strengthening our motion design team and looking for a specialist who understands the logic of advertising creatives, not just the technical side of editing.

What we expect from you:

• 4+ years of experience as a motion designer/video editor
• Experience working with advertising creatives
• Experience using AI tools to speed up editing
• Understanding of editing principles, composition, and video rhythm
• Ability to work with short video formats (TikTok/Reels/Ads)
• Proficiency in editing software (Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve, etc.)
• Ability to implement the scriptwriter's ideas and adapt them to the platform format
• Independence, responsibility, and adherence to deadlines
• Willingness to work in a dynamic environment and make quick edits

Your tasks:

• Editing creative videos for advertising sources
• Trimming, adding animation, special effects, text, and sounds
• Implementing scripts and ideas in the form of finished videos
• Automating editing workflows using templates, presets, scripts, and AI tools
• Adapting videos to different formats and platform requirements
• Making quick edits and refinements based on test results
• Working in conjunction with the team (scriptwriters, 2 artists, sound designers)

We offer:

• Interesting projects with large-scale opportunities
• All the necessary tools for work
• Opportunities for professional and career growth within the project
• Fixed rate - from 2000 USD (depending on your expertise)
• We work according to the Cyprus holiday calendar
• Probationary period - 3 months
• Full-time format 10 a.m. to 7 p.m. (Cyprus time)
• Fully remote work format.
• Paid vacation (20 working days) and sick leave

We are a team with over 8 years of experience in traffic acquisition and monetization. Our primary focus is on achieving maximum effectiveness in performance marketing. In recent years, we have been actively developing our own mobile apps and monetizing them through large-scale traffic acquisition.

We are looking for a Senior Growth Marketing Analyst who will be responsible for analyzing and developing key growth areas.

Main focus of the role:  

• help the business identify growth opportunities in traffic acquisition (in-app, social, web) and the development of ad-monetized apps, 
• develop and improve traffic acquisition automation algorithms,
• and drive product metrics for our own apps.

The role requires a high degree of independence in managing key analytical areas, direct interaction with company owners and the analytics team, as well as preparing reports and recommendations that influence strategic business decisions.

What we expect from you:

• At least 7 years of experience in data analytics.
• Experience in mobile app analytics and ad mediation for monetized apps: understanding of how mediation platforms, ad networks, waterfall/bidding logic, eCPM, fill rate, ARPDAU, impressions, ad revenue, and the impact of ad monetization on product metrics work.
• 4+ years of experience in digital marketing, performance marketing, paid acquisition, or growth marketing.
• Deep expertise in key acquisition and product metrics and their practical application: LTV, ROAS, ROI, CPA, CPC, CPM, CPI, CTR, CR, retention, ARPU, and others.
• Experience conducting cohort analysis, ad hoc analysis, experiment evaluation, and hypothesis testing.
• Ability to identify non-obvious insights in data and translate them into concrete business recommendations.
• Experience working with MMPs, attribution, and tracking tools such as Adjust, Voluum, Amplitude, Mixpanel, Firebase, or similar platforms.
• Experience with SQL for ad hoc analysis, data extraction, and modeling.
• Knowledge of Python or R for analytics, automation, and modeling.
• Understanding of the principles of marketing attribution, tracking, conversion measurement, and data quality.
• Skills in building reports and dashboards in BI tools (e. g., Looker) and working with them.
• Experience with BigQuery and other modern data stack tools such as GitLab, Docker, Google Cloud (Container Registry, Workflows, Cloud Run).
• Experience working with large volumes of data and the ability to independently develop analytical logic.
• Strong analytical skills and systematic thinking.
• Attention to detail, a high level of self-organization, and accountability for results.
• Ability to clearly communicate technical findings to non-technical teams.
• A bachelor’s degree in mathematics, applied mathematics, statistics, data science, information technology, or related fields.
• Location: Eurozone or Asia. 

Your tasks:

• Analyze and improve the effectiveness of advertising traffic acquisition from in-app, social, and web sources: evaluate sources, channels, campaigns, audiences, and combinations based on key acquisition metrics, identifying areas for scaling and optimization. 
• Conduct cohort and segment analysis, as well as ad hoc traffic buying analysis. 
• Systematically identify growth opportunities, formulate, prioritize, and test data-driven growth hypotheses: from optimizing traffic buying, creatives, and advertising platforms to improving monetization, user retention, and user ROI.
• Analyze and improve the effectiveness of traffic buying automation algorithms: evaluate the quality of solutions, identify the causes of performance drops, formulate requirements for improvements, and adapt the logic to new sources, advertising platforms, and business goals.
• Conduct predictive and proactive analytics to help identify risks, performance drops, and new growth opportunities in advance.
• Build and maintain analytical and functional dashboards.
• Verify the accuracy of key reports, data, tracking, and analytical systems; work with data from advertising platforms, BI, CRM, MMP, attribution tools, and internal databases.
• Coordinate analytical tasks within your area of responsibility: collaborate with the analytics team, monitor the quality of analytics, and help translate analysis results into business recommendations.
• Analyze and improve product metrics for our own apps, identifying areas for growth in retention, monetization, user behavior, and overall product performance.

We offer:

• Remote work format. We work quickly, efficiently, and focus on results.
• Schedule: 10:00 a.m. to 7:00 p.m. Cyprus time.
• 20 days of vacation and paid sick leave.
• Probationary period - 6 months.
• Salary by agreement, depends on level and expertise.
• We work according to the Cyprus holiday calendar.
• Our team consists of strong specialists. We value initiative, responsibility, teamwork, and the desire for growth.

Company Description

Ubisoft is a global leader in gaming with teams across the world creating original and memorable gaming experiences, from Assassin’s Creed, Rainbow Six, to Just Dance and more. We believe diverse perspectives help both players and teams thrive. If you’re passionate about innovation and pushing entertainment boundaries, join our journey and help us create the unknown! 

Job Description

As a 3D Graphics programmer you will work on rendering tech that drives Ubisoft's graphics engines.

Responsibilities:

• Design, implement, upgrade and maintain run-time rendering and graphics pipeline code for our games;
• Own, upgrade and maintain our rendering tools, pipeline and related code in our proprietary game engine;
• Write clear, maintainable, portable, C++ code;
• Profile game performance to assess and find rendering bottlenecks and improve overall performance;
• Work together with other international Ubisoft studios;
• Collaborate with GPU and console vendors.

Requirements:

• Strong knowledge of at least one graphics API (DiretX11-12/Vulkan/OpenGL4+, etc);
• Knowledge of modern rendering techniques;
• Advanced level of C++ and OOP\OOD;
• Experience with multithreading and memory management;
• Strong knowledge of 3D math;
• Understanding of GPU architecture and CPU/GPU communication;
• Intermediate level of English.

Desirable(optional):

• Pet projects;
• Experience with various game engines;
• Shipped game project.

What we offer:

We Are an Inclusive and Veteran-Friendly — company Ubisoft Ukraine strives to create an inclusive work environment where veterans can easily integrate and grow their careers. Our veteran program helps better understand business operations, hiring processes, and effective collaboration with civilian colleagues offering a supportive and inclusive environment to thrive in their post-military careers. We believe that veterans' experience is a valuable asset that strengthens our team,

Generous Time Off — 20 annual vacation days, additional leave for volunteering, parental leave, and special occasions. Sabbaticals and long-term leave options are also available.

Temporarily Flexible Work Model — during this challenging time, you have the flexibility to choose where you work — remotely or from our Kyiv and Odesa offices. Our offices remain available for those who need a collaborative space or a stable work environment, ensuring uninterrupted workflow while prioritizing safety.

Professional Growth — Access Ubisoft’s learning platform, training programs, English & French classes, and a structured career development plan. Participate in leadership programs tailored to Ubisoft’s business environment.

Comfortable Workplace & Tech Support — A modern office featuring sports facilities, a Fun Hub, and a shelter. We foster a welcoming and inclusive environment, ensuring accessibility for individuals of all abilities. Work with the latest hardware, benefit from dedicated IT support, and receive a home office setup for remote work.

Health & Wellness — Premium health insurance, psychological support, gym memberships, mindfulness sessions, and wellness activities. Free bicycles for commuting.

Community & Fun — Additional time off for social initiatives, office celebrations, game release events, and after-work activities. Recreational areas with board games, video games, and a Ubi-library.

Gaming Perks — Enjoy a collection of Ubisoft games across all platforms.

Creatio is an AI CRM and workflow platform where people and AI agents work together - with no limits on users, agents, or scale. We help midsize and large organizations run customer workflows in the AI era. With a global team and a large ecosystem of partners, Creatio serves thousands of customers in over 100 countries and automates tens of millions of workflows daily. Genuine care for our clients and partners is at the heart of our DNA.

We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports.

In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture.

Who We’re Looking For

We are looking for an AI Software Engineer to design, build, evaluate, and operate AI-powered capabilities within the Creatio platform.

You will join the AI teams building the agent platform that enables AI agents to safely perform real work in the product: call tools and APIs, read and write data, maintain context, follow permissions, and escalate to humans when needed.

The team also owns the core infrastructure for testing, monitoring, logging, observability, and cost/performance control, ensuring AI agents are reliable, scalable, secure, and production-ready.

This role combines strong software engineering expertise with hands-on AI engineering experience. You will work on enterprise-grade AI solutions, including assistants, copilots, knowledge systems, semantic search, RAG-based capabilities, and agentic workflows.

Responsibilities:

• Design and implement AI-powered product features within the Creatio platform.
• Build assistants, copilots, agentic workflows, knowledge systems, RAG, and semantic search capabilities.
• Integrate LLM providers, tools, enterprise data sources, and MCP-based solutions.
• Develop and maintain backend services using C# and .NET.
• Build evaluation frameworks, quality gates, and observability practices for AI solutions.
• Monitor and improve the quality, latency, cost, reliability, and security of AI capabilities.
• Apply AI coding assistants and engineering agents as part of the daily development workflow.

Requirements:

• Strong experience with C# and .NET.
• Hands-on experience with LLMs, prompt engineering, function calling, and structured outputs.
• Understanding of agent architectures, MCP, RAG, embeddings, vector search, and semantic search.
• Experience with AI evaluation, observability, security, and Responsible AI practices.
• Solid understanding of API design, distributed systems, and software architecture.
• Experience with SQL databases, testing, CI/CD, and cloud-native development.
• DevOps fundamentals, including Docker containerization and basic Kubernetes knowledge.
• Strong knowledge of engineering best practices and production-grade software development.

What to expect from us:

• Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential.
• Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally.
• Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one.
• Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve.
• Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type.

N-iX is looking for a highly skilled Senior System Analyst to join the project aimed at modernizing and developing the client solutions. 

Our client is one of the largest banks in Ukraine, with its headquarters in the EU. They specialize in bank services for businesses and individuals in Ukraine and Europe.

Responsibilities:

• Gather, analyze, and document business requirements for different software systems 
• Write technical documentation (functional and non-functional requirements) and determine development priorities 
• Define, elaborate, and document architectural solutions, design data storage structures, and determine integration points with external/internal systems 
• Perform post-deployment control of new IT system versions 
• Develop specifications, user stories, and business process documentation
• Identify incidents in information systems 
• Train, consult, and support employees involved in preparing development requirements 

• Support project delivery by monitoring progress and assisting in issue resolution

   

Requirements:

• Proven experience as a System/Business Analyst or similar role
• Experience in formalizing software requirements and setting tasks for developers 
• Proficiency with relational (SQL queries, DB structures, transactions, indexes) and non-relational databases 
• Knowledge of non-functional requirement types 
• Knowledge of web technologies, understanding of the strengths and weaknesses of integration protocols (HTTP, SOAP, REST). Experience with SOAP/REST web services and JSON/XML formats 
• Experience with tools such as Jira, GIt, Confluence, or similar
• Proficiency in BPMN and UML modeling languages (Deployment-, Component-, Use Case-, Sequence diagrams) 
• Knowledge of application authentication and authorization methods 
• Understanding of software component interaction patterns 
• Analytical mindset with problem-solving abilities

• Bachelor’s degree in Business, IT, or related field

   

Nice to Have:

• Practical experience in banking or financial services for enterprise clients

• Experience in banking, financials or insurance domain

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Head of Marketing — US Market

Company: Crystalia Glass
Contract: B2B
Format: Remote
Market: US
Working hours: 8:30 AM–5:00 PM New York time, with at least 6 hours of daily overlap
Media budget: $200K+/month

Crystalia Glass is a US manufacturer and installer of premium architectural glass systems for residential and commercial interiors, including glass partitions, sliding glass walls, and steel- and aluminum-framed systems.

We are looking for a Head of Marketing to own and develop our US marketing function across brand, growth, performance, analytics, and team leadership.

Core Requirements

• 7+ years of marketing experience, including 3+ years leading a full marketing function with ownership of strategy, budget, team, and results.
• Direct experience owning marketing for the US market, with responsibility for customer acquisition, demand generation, and brand growth.
• Experience marketing the same product or brand to both B2B and B2C audiences simultaneously — with distinct positioning, customer journeys, acquisition strategies, and funnels for each audience.
• Experience in a relevant or closely related industry — ideally construction, building materials, architecture and interior products, custom furniture, home improvement, premium home products, or another comparable high-consideration category.
• Experience managing significant paid media budgets — ideally $1.5M+ annually — with the ability to discuss actual spend, channel allocation, and resulting business performance.
• Strong full-funnel analytics experience, including attribution, CAC, ROMI, conversion rates, channel economics, and analysis through to closed revenue.
• Strong experience with CRM systems, including pipeline structure, workflows, lead qualification, reporting, and funnel analysis. We currently use HubSpot, but experience with other advanced CRM platforms is absolutely fine.
• Experience leading distributed marketing teams of 8+ people, including specialists, contractors, and agencies.
• Proven marketing and growth results supported by specific numbers and business outcomes.
• English C1+, with strong written English for US-facing communication, messaging, and creative review.

What You'll Own

Brand & Market Position

• Define and strengthen Crystalia's positioning in the US premium market
• Build consistent messaging and brand standards across channels and customer touchpoints
• Develop a visual production pipeline for completed projects — photography, video, and portfolio content
• Build PR and media presence in architecture, interior design, construction, and relevant lifestyle publications
• Develop partnerships with architects, interior designers, contractors, and other trade professionals

Growth & Performance

• Own marketing-sourced growth across both B2B and B2C
• Manage and allocate a $200K+ monthly media budget
• Lead strategy across paid search, paid social, SEO, content, CRM, and other acquisition channels
• Make channel and budget decisions based on closed revenue and unit economics, not lead volume alone
• Improve qualified demand, conversion, CAC, ROMI, and overall marketing efficiency

Analytics & Funnel

• Build visibility from first touch through closed revenue
• Develop attribution and channel-level unit economics
• Track and use CAC, ROMI, conversion rates, close rates, average deal value, and sales-cycle length
• Analyze lost opportunities, objections, CRM data, and customer conversations to improve positioning and campaigns
• Build concise executive reporting focused on metrics that drive decisions

Sales Partnership

You will work with Sales leadership as a peer partner, not as the manager of the Sales organization.

Together, Marketing and Sales will:

• Define and review lead qualification criteria
• Analyze lead quality, conversion, and revenue by source
• Review funnel performance and lost-deal reasons
• Improve the handoff and customer journey between Marketing and Sales

Marketing owns funnel analysis through closed revenue; Sales leadership owns sales targets, processes, and people.

Team & Operations

You will lead a distributed marketing team across B2B and B2C marketing, SEO, PPC, Paid Social, SMM, Community, Design, and CRM.

You will:

• Assess and develop the existing team structure
• Strengthen brand and analytics capabilities
• Hire and manage specialists, contractors, and agencies
• Establish clear ownership, processes, quality standards, and accountability
• Build systems that can scale with the business

Digital & E-commerce

Our new website is currently in development and will introduce e-commerce elements, including customer accounts and online purchasing for selected products.

E-commerce is not our primary business model, but experience with digital customer journeys, online conversion, and e-commerce mechanics will be valuable.

Strong Advantages

• Premium or luxury product experience
• Architecture, construction, building materials, interiors, custom furniture, or home improvement background
• Experience with architect, designer, contractor, or other specifier channels
• Experience building a brand function from the ground up
• PR and media relations in architecture, design, construction, or lifestyle
• Showroom, trade show, or physical retail marketing
• New product launches in established markets
• Practical use of AI in marketing workflows for analysis, research, content production, and automation

What Success Looks Like

Build Crystalia into a stronger and more recognizable premium brand in the US architectural glass market, while creating a marketing system that produces predictable and profitable revenue growth.

Success means stronger qualified demand across B2B and B2C, clear attribution from first touch to revenue, smarter budget allocation, strong alignment with Sales, and a marketing organization that can scale with the business.

Our Client is a leading VC-backed defense technology company founded to bridge the decades-old gap between modern technology and critical national security requirements.

Today, we are building the necessary infrastructure to bring together sensors, autonomy, and operators with our technologies deployed in active operations around the world.

About this position

We are seeking a Senior Software Engineer to join our Legion Platform team. You will design, build, and deploy high-performance, scalable server systems and integration tools that connect hardware and software systems across environments and levels of command. As part of the Legion team, your expertise will be critical to solving complex system challenges and developing a robust platform that is deployed for real-world military missions. This role requires continuous innovation and is a good fit for an engineer who thrives under pressure and demands that their work have an immediate, tangible impact on national security.

Responsibilities

• Design, develop, and implement high-performance, scalable backend systems that form the foundation of the Legion platform.
• Create and maintain integration tools that ensure reliable connectivity between hardware and software systems at all levels of management and in different environments.
• Apply expertise in the development of distributed systems, data pipelines, and real-time information processing solutions.
• Solve complex system architecture problems to continuously improve and increase the reliability of the platform used for military missions.
• Actively work with relational databases (in particular, PostgreSQL), object storage (e.g., S3, MinIO), and geospatial tools.
• Ensure high engineering standards when developing HTTP APIs (REST, gRPC, or GraphQL) and implement reliable authentication and authorization models.
• Work closely with end customers to gather requirements, develop, and deliver software that has immediate and tangible impact.

Requirements

• 5+ years of hands-on backend engineering experience in fast-paced, production environments using either Go, Python, Rust, C/C++, TypeScript, or similar languages.
• Strong background in APIs, distributed systems, data pipelines, or real-time processing.
• Deep experience with relational databases (e.g., PostgreSQL), object stores (e.g., S3, MinIO), and geospatial tools.
• Strong grasp of HTTP APIs (REST, gRPC or GraphQL) and authentication/authorization models.

Will be a plus

• Experience working with Ukrainian Ministry of Defence, and/or NATO members.
• Exposure to Ukrainian military C2 platforms, including Delta, Kretchet, Oreanda, etc.
• Experience supporting Golang-based applications in production.
• Experience building plugins or integrations for common military command-and-control (C2) platforms (e.g. TAK, Maven, Lattice).

Company offer

• Meaningful stock options
• Full health, dental, and vision coverage
• Relocation assistance
• Unlimited PTO (two-week minimum) and all paid Ukrainian public holidays
• Paid parental leave for both parents

Location Kyiv

Job Description

Required Hard Skills (The "Must-Haves")

· Expert C/C++: 3+ years of experience in strictly kernel-mode software development.

· WinDbg Mastery: Ability to perform "post-mortem" debugging without symbols for third-party conflicts, and live kernel debugging using VMWare/Hyper-V/KDNET. You must be comfortable analyzing stack traces, register states, and trap frames.

· Windows Internal Knowledge: Deep understanding of:

• IRQLs (Interrupt Request Levels) and DPC/Dispatcher mechanics.
• Memory Management (Paged vs. Non-Paged pool, MDLs).
• Synchronization primitives (Spinlocks, Mutexes, Pushlocks).

· File System Filters: Proven experience with the Filter Manager Model (FltMgr) and Minifilter drivers (FltRegisterFilter, Pre/Post operation callbacks).

· EDR/Security Driver Experience: Familiarity with:

• ObCallbacks (ObRegisterCallbacks).
• Process/Thread/Image Load Notify routines (PsSetCreateProcessNotifyRoutineEx, etc.).
• Avoiding deadlocks when injecting logic into high-frequency system paths.

Preferred Skills (The "Nice-to-Haves")

· Reverse Engineering: Proficiency with IDA Pro or Ghidra to analyze potential conflicts with third-party drivers (e.g., Antivirus conflicts causing the crash).

· x64 Assembly: Ability to read disassembly to pinpoint the exact instruction causing the fault when source lines are ambiguous.

· WHQL/WHCP: Experience with the Windows Hardware Compatibility Program signing process (in case the fix requires re-certification) and Microsoft Virus Initiative program

Job Responsibilities

Write kernel and Driver software that can reach the internals of the operating system.

· Implement novel collection and protection techniques.

· Write robust driver infrastructure.

· Optimize for extreme performance constraints.

· Research uncharted territories of the Windows kernel, drivers, APIs, and internal mechanisms.

· Crash Dump Analysis: Perform deep-dive analysis of kernel memory dumps (Minidumps and Complete Memory Dumps) to identify the root cause of the crash (e.g., race conditions, stack overflows, invalid memory access, IRQL violations).

· Reproduction & Isolation: Design stress tests and verification procedures to reliably reproduce the BSOD in a controlled environment using tools like Driver Verifier and specific load-testing scripts.

· Code Review & Remediation: Audit the existing C/C++ driver code (specifically Minifilter callbacks and process notification routines) for thread safety, proper lock usage (Spinlocks/ERESOURCE), and memory handling.

· Patch Implementation: Implement robust fixes for the identified issues, ensuring zero regression in driver performance or security efficacy.

· Validation: Verify fixes using Microsoft Driver Verifier and HLK (Hardware Lab Kit) basics to ensure stability under high stress.

Department/Project Description

Our clients is an endpoint security company looking for an expert-level Windows Kernel Driver Specialist to assist engineering team in developing next generation Endpoint Detection and Response (EDR) agent. We are looking for an experienced individual to join a team that is responsible for developing our cutting-edge collection, prevention and protection technologies using both documented and undocumented proprietary kernel mode techniques.
The team develops the core kernel technologies for a wide variety of products, from EDR to next-gen AV, including work that encompasses many aspects of kernel development, from infrastructure through filter drivers to function hooking, to name a few.

Join Whitechain — Build the Future of Web3!

At Whitechain, we’re on a mission to revolutionize blockchain, smart contracts, and cryptography. As part of the WhiteBIT ecosystem, we’re building cutting-edge Web3 solutions, from our own EVM blockchain to non-custodial wallets, DeFi platforms, and GameFi experiences.We’re looking for ambitious innovators to help us bridge the gap between retail and corporate blockchain adoption. If you’re passionate about decentralization, Web3, and shaping the future of digital economies, this is your chance to make an impact!

The future of Web3 starts with you — join us as a DevOps Engineer!

Requirements

— 3+ years in DevOps / SRE / infrastructure roles
— 1 year experience with blockchain/ crypto infrastructure background (Ethereum, OP Stack or similar)
— Strong Kubernetes: deployment, debugging, network policies, Helm
— Terraform (modules, state management, multiple providers)
— CI/CD with GitHub Actions or equivalent; GitOps principles
— AWS (IAM, VPC, EC2, S3, KMS)
— Confident Linux administration and Bash scripting
— Monitoring and alerting with Prometheus / Grafana
— Git and PR-based workflow

Responsibilities

— Operate and evolve Kubernetes clusters (testnet and upcoming mainnet) via ArgoCD and Helm
— Deploy, upgrade and troubleshoot OP Stack components: op-node, op-reth, batcher, proposer, conductor
— Maintain infrastructure as code: Terraform (AWS, Cloudflare) and Ansible for node configuration
— Own and improve CI/CD pipelines (GitHub Actions): image builds, registry publishing, automated IaC tag bumps
— Maintain monitoring and alerting (Prometheus, Grafana); respond to alerts for sequencer lag, batcher stuck, L1 sync, disk
— Participate in the on-call rotation after onboarding
— Follow and keep runbooks up to date; document on-chain and operational procedures
— Configure and protect public RPC endpoints (rate limiting, Cloudflare WAF)

Good to have

— Direct OP Stack experience (op-node, op-reth, batcher, proposer, conductor)
— ArgoCD and GitOps in production
— Ansible
— Cloudflare (WAF, rate limiting, CDN)
— Key management: AWS KMS or HashiCorp Vault
— Incident response experience and postmortem writing

About the Role:

We are looking for an experienced Senior Data Engineer to join our team and help build scalable, secure, and high-performance data platforms. In this role, you will work closely with Data Architects, Engineers, Analysts, DevOps specialists, and Data Scientists to design, develop, and optimize modern cloud-based data ecosystems.

This is a full-time remote position for a senior-level professional who can commit 40 hours per week and take ownership of complex data engineering initiatives.

🔹 Responsibilities:

As a Senior Data Engineer, you will:

* Collaborate with Data Architects on designing and implementing data solutions across Azure, AWS, or IBM Cloud environments

* Build, maintain, and optimize modern data ecosystems and data pipelines

* Develop and support data ingestion, transformation, and processing solutions

* Work closely with cross-functional teams, including Data Engineers, Analysts, DevOps Engineers, and Data Scientists

* Implement security best practices to ensure the reliability and protection of cloud infrastructure and data processes

* Apply modern engineering principles and methodologies to support business growth and innovation

* Identify opportunities to improve data quality, reliability, scalability, efficiency, and overall platform performance

* Optimize data solutions to balance performance, maintainability, and cost-effectiveness

* Design and execute unit, system, and integration testing strategies

* Contribute to continuous improvement initiatives and engineering best practices

🔹 Requirements:

* Strong commercial experience as a Data Engineer

* Advanced proficiency in Python for data processing, transformation, and analysis

* Strong expertise in SQL, including query optimization and database performance tuning

* Hands-on experience with Azure and/or AWS data platforms and services

* Experience designing and maintaining scalable cloud-based data solutions

* Solid understanding of data engineering best practices, data modeling, and ETL/ELT processes

* Experience with software development lifecycle methodologies and Agile environments

Nice to Have:

* Experience with IBM Cloud data services

* Knowledge of data governance and cloud security practices

* Experience working in enterprise-scale data environments

🌍 What We Offer:

-Paid vacation and sick leave

-We provide the equipment you need to work comfortably (if required)

-We cover 50% of courses if you want to grow professionally

-Regular salary reviews based on your performance

-Competitive salary, depending on your experience

-Always on-time payments — no delays

-A normal, supportive team without unnecessary bureaucracy

The company "D4 Group" is a thriving outsourced firm and is currently seeking a full-time UX Designer.

The company's primary focus is to deliver design and development services, with core activities encompassing UX/UI Design, SaaS solutions, and Mobile app development.

Requirements:

- Exceptional UX design skills!

- 2+ years of experience in UX/UI design (Web/Mobile/Products/Dashboards).

- Proficiency in Figma, Sketch, Adobe (PS/AI/XD) tools.

- Impressive Dribbble & Behance portfolio.

- Familiarity with Jira, G Suite, and Confluence.

- Understanding of current UX/UI design trends and best practices.

- Experience working with Enterprise clients.

- Animation creation experience in After Effects.

We offer:

- Competitive salary that increases with qualification.

- Timely payments.

- remote work possibility.

- Support for professional development.

- Supportive management.

- Working schedule from Monday to Friday, either from 10:00 am to 7:00 pm or from 9:00 am to 6:00 pm. Lunch break.

If you are seeking a position where you can work on modern projects within a small but friendly team, where you can apply all your skills and continue to grow professionally, please send your resume promptly. We might be looking for you!

📍Hybrid in Kyiv, Full-time

Trust Sourcing is a fast-growing IT outstaffing company with great ambitions. We operate in a very competitive market so every day we are looking for opportunities to be better. To be faster. Having a lot of ideas we are very open to fresh ones.
 

We are looking for an IT Specialist with a strong focus on IT Asset Management and System Administration (Windows). The role combines hands-on technical support, lifecycle device management, and basic system administration. The specialist will be responsible for configuring and maintaining user devices, resolving software issues, and supporting internal users on demand.

This role requires B1+ English communication skills (written and verbal) and the ability to explain technical topics clearly at a basic level to non technical users.
 

Key Responsibilities

IT Asset Management:

— Maintain inventory of company IT assets (laptops, peripherals, accessories).

— Track asset lifecycle: procurement, setup, assignment, replacement, and decommissioning.

— Search for IT equipment availability across European markets using online tools and vendor platforms.

— Communicate with store managers and suppliers via email and messengers to confirm availability, pricing, and delivery timelines.

System Administration & Workstation Management:

— Install, reinstall, and configure Windows 11 on company devices.

— Perform initial system setup: drivers, system updates, security settings, and standard configurations.

— Install, configure, and update required software and tools.

— Ensure devices are ready for employee use according to internal standards.
 

IT Support & Troubleshooting:

— Provide on-demand IT support to internal users.

— Diagnose and resolve software-related issues (OS, applications, drivers, system settings).

— Apply structured troubleshooting steps and escalate issues when required.

— Clearly explain issues and solutions to users in a simple, understandable way.
 

Documentation & Communication:

— Document common issues, solutions, and configuration steps.

— Communicate clearly with non-technical users and internal stakeholders.

— Use Google Search efficiently to quickly find solutions, documentation,

drivers, and vendors.
 

Requirements

— Proven 0,5+ years of experience as an IT Support Specialist/ System Administrator/Hardware Specialist, or similar role.

— Understanding of Windows 11 principles and architecture.

— Hands-on experience with: OS installation and reinstallation, System configuration and optimization, Software installation and troubleshooting.

— Basic understanding of IT hardware (laptops, monitors, peripherals).

— Ability to independently research solutions using online resources.

— Intermediate B1+ English level or higher (verbal and written).

— Ability to explain technical topics on a basic, user-friendly level.

— Confident written communication via email and messengers.

— Strong problem-solving mindset.

— Ability to work independently and manage multiple support requests.

— Attention to detail in asset tracking and documentation.

— Responsible and service-oriented approach to internal support.
 

Nice to Have

— Experience with IT asset tracking tools or spreadsheets.

— Familiarity with remote support tools.

— Experience working with distributed or international teams.
 

What We Offer

— Stable workload with clear responsibilities.

— Exposure to real IT operations and asset management processes.

— Opportunity to grow toward advanced system administration roles.

— Fair compensation package +bonuses;

— Office in the Kyiv center;

— Accounting coverage, professional courses;

— Friendly team and many more.

Referral

We are always searching for new talents and welcome your recommendations.
Have someone on your mind? Send them to us. 
For a successful hire for this position, you will receive a 100 USD Gross bonus

We are looking for a Middle .NET Developer to join our team and work on an exciting FinTech project. You'll collaborate with experienced engineers to build scalable, secure, and high-performance backend solutions.

Responsibilities:

• Develop and maintain backend services using C# and .NET.
• Design and implement RESTful APIs.
• Participate in architecture discussions and code reviews.
• Collaborate with cross-functional teams to deliver high-quality software.
• Write clean, maintainable, and well-tested code.
   

Requirements:

• 3+ years of commercial experience with C#/.NET.
• Strong knowledge of .NET Core / .NET 6+ and ASP.NET Core.
• Experience with REST APIs.
• Solid understanding of SQL databases (MS SQL Server or PostgreSQL).
• Experience with Entity Framework Core.
• Knowledge of OOP, SOLID principles, and design patterns.

Nice to Have:

• Docker and Kubernetes.
• Azure or AWS.
• Experience with microservices.
• Previous experience in the FinTech domain.

We Offer:

• Remote work and flexible working hours.
• Legal support.
• Paid sick leaves.
• Paid vacations.
• Medical insurance. 
• Free English classes.