Jobs at Djinni

Adaptiq, on behalf of AppsFlyer, is looking for a Data Engineer

About AppsFlyer (Kyiv):

AppsFlyer provides a SaaS marketing analytics platform that measures and optimizes marketing activities across mobile, web, CTV, PC, and console applications. AppsFlyer is known for its massive backend production. At any given moment, thousands of servers are consuming 150+ billion mobile app events, crunching our users’ data, serving requests, and communicating on a massive scale.

To maintain the universe we call AppsFlyer, we practice modern production operations with a complete self-serve CI/CD platform, a highly integrated observability stack for our micro-services, backends, and infrastructure, a culture of ownership and eagerness for quality.

The Analytics group is responsible for showing our clients the stories their data is telling. Through complex aggregation, mission-tailored analytical databases, and carefully crafted APIs we are able to provide slice-and-dice analysis in our beautiful dashboards and through the use of external integrations.

About the Role:

As a Data Engineer in AppsFlyer’s Analytics group, you will be responsible for the full lifecycle of event data — from ingestion and processing to storage, modeling, and delivery through APIs.

You will build and maintain data pipelines with Apache Airflow and Spark, evaluate and optimize analytical databases, and integrate new components within a hybrid microservices architecture. You will work closely with product managers and cross-functional engineering teams, handle production issues, and take part in the company’s migration toward Google Cloud and BigQuery.

This role provides a high level of ownership over feature design, direct impact on a platform processing billions of events every day, and opportunities to contribute to open-source initiatives or share expertise at industry events.
 

Key Responsibilities:

• Develop and support data processing pipelines using Apache Airflow, Scala Spark, or PySpark.
• Select, design, and optimize analytical databases for high-volume, low-latency queries.
• Build backend services and APIs for data ingestion, aggregation, and customer-facing data consumption.
• Monitor system reliability and performance, investigate issues, and resolve production incidents.
• Partner with product managers and engineering teams to plan, design, and deliver complex features.
• Support migration initiatives to Google Cloud Platform, BigQuery, and modern data technologies.
• Participate in on-call rotations, PagerDuty alerts, and incident response processes.
• Document architecture, data flows, and technical decisions while maintaining high code quality and test coverage.
   

Required Competence and Skills:

• 3+ years of software development experience with a strong focus on data engineering.
• Hands-on experience with Apache Spark, using either Scala or PySpark.
• Practical experience with Apache Airflow.
• Background in building and maintaining distributed data systems with high throughput and low latency.
• Strong SQL knowledge and experience with data modeling for analytical use cases.
• Experience with JVM-based languages such as Scala, Java, or Clojure, or Python for backend development.
• Experience with cloud platforms, preferably GCP, and data warehouses such as BigQuery.
• Proven ownership of production systems, including on-call responsibilities and incident management.
• Strong English communication skills for working in a distributed environment.
• B.Sc. in Computer Science or equivalent practical experience.
   

Nice to Have:

• Production experience with large-scale databases and ETL tools.
• Hands-on experience with backend services written in Go or Clojure.
• Experience building production-grade BigQuery ETL processes and data pipelines.
• Contributions to open-source projects or experience speaking at meetups, conferences, or industry events.
• An AI-oriented mindset, including familiarity with tools such as GitHub Copilot and modern AI-assisted workflows.
  
  Benefits Package:
• Health insurance.
• Paid unlimited vacation days, national holidays, and additional recharge days.
• Meal reimbursement.
• Sport reimbursement.
• Breakfast in the office.
• Mental health program.
• Team buildings, happy hours, and other team activities.
• Paid sick leave.
• Snacks, fruits, and ice-cold beer in the office.
• Brand-new Mac laptop, two monitors, and a starter package for every new team member.

The future belongs to gamedev. AlphaNova - game development company is looking for an AI Artist for full-time collaboration. Do you love games and creative technologies as much as we do? We are sure that it is you who will be able to strengthen our team. Together we will make the best product.

Requirements

• 6+ months of experience as an AI Artist / Generative Artist or strong portfolio / pet projects
• Experience working with AI tools (Midjourney, DALL·E, Stable Diffusion, etc.)
• Understanding of visual composition, color theory, and design basics
• Experience creating content for social media (cartoons, illustrations, visual posts)
• Ability to write effective prompts and iterate on results
• Basic understanding of graphic editors (Photoshop, Figma, etc.)

• Creativity and attention to detail

   

Responsibilities

• Create and generate cartoon-style visuals for social media
• Develop engaging and creative visual concepts
• Generate illustrations using AI tools based on briefs
• Adapt and refine generated content for different platforms
• Maintain consistent visual style and brand identity
• Collaborate with marketing and SMM teams
• Optimize and experiment with prompts to improve output quality

We offer:

• Competitive rate
• Work with international products
• Work format - remote
• Salary, tied to the dollar exchange rate
• Career growth that you can influence by showing the right results, as we are constantly expanding

RedCore is an international business group that creates technological solutions for digital markets. 

Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

Powering Growth from the Core — this is the key mission laid under RedCore’s strong foundation. This is how we consistently stay ahead: by evolving and creating scalable solutions, while remaining committed to open and transparent communication with our partners.

We are looking for an Senior Internal Communications Manager to join our team.

Requirements:

- 4+ years of proven experience in Internal Communications / Corporate Communications;
- Ability to write and edit articles, announcements, and corporate materials;
- Experience in launching or managing internal communication processes;
- Strong written and verbal communication skills;
- English — Upper-Intermediate or higher;
- Ability to prepare reports and analyze communication results;
- Adherence to confidentiality principles.

Soft Skills:

- Ability to work independently and take ownership;
- Strong organizational and time management skills;
- Attention to detail;
- Proactive and solution-oriented mindset;
- Excellent communication skills;
- Ability to work with different stakeholders and teams.

Responsibilities:

- Develop and manage internal communications channels;
- Write and edit internal articles, announcements, and corporate materials;
- Launch and maintain internal communication formats;
- Generate and support internal initiatives;
- Work with presentations, forms, and visual content;
- Communicate with different departments to collect information;
- Prepare reports on internal communication activities.

Our benefits to you:
- Modern corporate equipment based on macOS or Windows and additional equipment are provided
- Paid vacations, sick leave, personal events days, days off
- Referral program — enjoy cooperation with your colleagues and get the bonus
- Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
- Rewards program for mentoring and coaching colleagues
- Free internal English courses
- In-house Travel Service
- Multiple internal activities
- Other benefits could be added based on your location

We’re looking for a QA Engineer to join our team on a part-time basis (4 hours per day). 

You’ll be our only QA specialist, so we’re looking for someone who enjoys independence, takes ownership, and feels confident building and leading the testing process across mobile and web products. You’ll work closely with the team in an Agile/Scrum environment, helping us deliver high-quality features in short, iterative cycles.
Because we work closely with a US-based company, our schedule is slightly shifted. For this role, that means working around 4–8 PM Kyiv time.

Main Responsibilities

• Test native mobile applications (iOS/Android) and web applications (desktop/mobile)
• Validate customer-facing flows and admin panel functionality
• Execute functional, regression, exploratory, and UI testing
• Create, maintain, and execute test cases
• Identify, document, and track bugs through the full lifecycle
• Communicate risks and provide clear, structured feedback on product quality
• Collaborate with the team during sprints (Agile/Scrum)

Main Requirements

• Solid understanding of testing theory (types of testing, bug lifecycle)
• Experience testing web applications: customer website + admin panel
• Experience testing native mobile apps (iOS and Android)
• Understanding of Agile/Scrum principles
• Strong attention to detail and communication skills

Nice to Have

• Experience with API testing tools such as Postman
• Practical experience with test automation
• Experience using AI tools to improve testing efficiency and support QA activities

About the Role

We are looking for a Strong Junior / Middle Marketing Creative Producer to lead and deliver creative marketing efforts across our web and mobile entertainment products. You will develop and execute advertising concepts, working closely with UA, Product, Analytics to deliver effective marketing assets.

Requirements

• 1+ years in creative production, ideally in a UA-focused environment
• Experience with web and mobile app marketing, including subscription-based products
• Expertise in marketing creatives across video, static, UGC, and playable formats
• Creative and analytical mindset — ability to read performance data and act on it
• Understanding of AI-driven creative tools and pipelines (ComfyUI, Freepik and similar)
• Ability to evaluate and guide AI-generated creatives, not just produce them manually
• Organized, able to manage multiple priorities and deadlines
• Upper-Intermediate English

Key Responsibilities

• Set quality standards for AI-generated creatives and filter output
• Use AI tools and workflows to generate concepts and iterate on assets quickly
• Work with automation tools to surface insights and make creative decisions
• Collaborate with UA, product marketing and analytics teams
• Track creative performance and optimize based on data

• Leverage data-driven insights to optimize creatives and identify winning concepts

   

We offer:

• A passionate, skilled team with zero bureaucracy — just results.
• Competitive salary that lets you focus on your work and personal growth.
• Professional development: access to courses, workshops, and a corporate library.
• 20 days of paid vacation, health insurance, and regular sports activities.
• A collaborative culture: team buildings and fun events inside and outside the office.

Required languages

About the Role

We are looking for an Account Manager to work closely with partners and agents. This role is not just about responding to messages — the main goal is to onboard new partners, develop long-term relationships, increase partner performance, and help grow their turnover.

Responsibilities

• Handle incoming partner inquiries and onboard new partners
• Manage partners throughout the entire cooperation lifecycle
• Develop and grow partner accounts to improve performance and results
• Analyze partner performance and identify growth opportunities
• Consult, support, and educate partners on company products and processes
• Proactively resolve partner issues and non-standard situations
• Maintain reports and monitor key performance metrics
• Collaborate with internal teams to improve partner results and overall performance

Requirements

• Experience in Account Management, Partner Management, Customer Success, or a similar role
• Strong communication, negotiation, and relationship-building skills
• Ability to analyze data and work with Google Sheets (formulas, reporting, analytics)
• English proficiency (written and spoken); Arabic is a strong advantage but not mandatory
• Additional languages are a plus
• Strong problem-solving skills and a proactive approach
• Ability to prioritize tasks and work effectively in a fast-paced, multitasking environment
• Self-motivated, results-driven, and capable of managing partner relationships independently
• Experience in Gambling, Betting, or iGaming is a plus
   

Nice to Have

• Experience in the Gambling, Betting, or iGaming industry
• Experience working with affiliates, agents, or partner networks

What We Offer

• Remote work format 
• Full-time schedule (Monday–Friday)
• Competitive fixed salary + KPI-based bonuses
• Training, onboarding, and ongoing support
• Opportunity to grow within a fast-paced and dynamic environment

Languages: English-Russian(required), Arabic (preferred but not mandatory)

Zutobi is a global edtech product company creating engaging digital learning experiences. We’re a team of ~75 people across product, growth, marketing, and operations, building multiple apps used by 250,000+ monthly users worldwide. We operate as a bottom-up company, where initiative, ownership, and experimentation are core to how we work.

Currently, we are seeking a data-focused and result-oriented User Acquisition Specialist to join our amazing global team! In this role, you will be responsible for planning, implementing, and optimizing paid advertising campaigns in Google UAC, Search, Display and Apple Search Ads, for promoting Zutobi products.

About you:

• At least 2 years of experience with planning, launching and managing paid advertising campaigns in Google UAC, TikTok, or Facebook, Instagram, Snapchat, and Apple Search Ads.
• Deep understanding of advertising metrics such as CTR, CPC, CPM, CPA, CPL, LTV, ROAS, etc., and the ability to apply them in work.
• Experience with US and European markets
• Proficiency in setting up and utilizing marketing analytics tools such as Google Analytics, AppsFlyer, RevenueCat, etc.
• Strong analytical skills and data-driven approach: the ability to analyze data and metrics, and the capacity to adapt advertising strategies and optimize budgets for maximizing profitability.
• Experience with web-to-web acquisition funnels (Google, Meta) — understanding of funnels, metrics, and landing pages/quizzes.
• Upper-Intermediate (or higher) English level.

About your responsibilities:

• Collaborating with our creative team to develop paid advertising strategies for user acquisition, product growth and increasing profitability.
• Planning, developing, executing, and optimizing advertising campaigns Google UAC and Apple Search Ads , or sometimes Facebook, Instagram, Snapchat, and Tiktok to achieve business goals.
• Managing the effectiveness of advertising campaigns, tracking key metrics, and delivering regular progress reports to demonstrate achievements and return on ad spend (ROAS).
• Strategically planning, overseeing, and optimizing the advertising budget to maximize the impact and effectiveness of campaigns.
• Utilizing analytical tools to gather insights, identify opportunities for improvement and guide data-driven decision-making in advertising strategies.
• Reporting on DEMO and team meeting 

💙 What we offer

• Culture: Empowering, ’Bottom Up’ culture valuing initiative, collaboration, and continuous learning, aligned with values of Safety, Simplicity, Modernity, Encouragement, Helpfulness, and Accountability.
• Impact & Growth: Work with an industry-leading product (250,000+ monthly users, 10M+ downloads).
• Innovation: Freedom to innovate and utilize expertise in a company that encourages ideas and initiative.
• Work Flexibility: Remote work with flexible 40-hour/week schedule, accommodating team meetings and collaboration.
• Vacation: 20 business days (4 weeks) annual leave.
• Sick Leave: 20 business days (4 weeks) annual sick leave.
• Holidays: Ukrainian public holidays are default days off.
• Learning & Development: Reimbursement for development courses/training, fostering a continuous professional development culture where employees seek opportunities and managers coach teams.

Zutobi is a global edtech product company creating engaging digital learning experiences. We’re a team of ~75 people across product, growth, marketing, and operations, building multiple apps used by 250,000+ monthly users worldwide. We operate as a bottom-up company, where initiative, ownership, and experimentation are core to how we work.

Currently, we are seeking a data-focused and result-oriented User Acquisition Specialist to join our amazing global team! In this role, you will be responsible for planning, implementing, and optimizing paid advertising campaigns in TikTok, and sometimes supporting team with Facebook, Instagram, Snapchat and Google UAC for promoting Zutobi ptoducts.

About you:

• At least 2 years of experience with planning, launching and managing paid advertising campaigns in TikTok, or Facebook, Instagram, Snapchat, and Google UAC.
• Deep understanding of advertising metrics such as CTR, CPC, CPM, CPA, CPL, LTV, ROAS, etc., and the ability to apply them in work.
• Experience with US and European markets
• Experience with web-to-web acquisition funnels (Google, Meta) — understanding of funnels, metrics, and landing pages/quizzes.
• Proficiency in setting up and utilizing marketing analytics tools such as Google Analytics, AppsFlyer, RevenueCat, etc.
• Strong analytical skills and data-driven approach: the ability to analyze data and metrics, and the capacity to adapt advertising strategies and optimize budgets for maximizing profitability.
• Upper-Intermediate (or higher) English level.

About your responsibilities:

• Collaborating with our creative team to develop paid advertising strategies for user acquisition, product growth and increasing profitability.
• Planning, developing, executing, and optimizing advertising campaigns TikTok , or sometimes Facebook, Instagram, Snapchat, and Google UAC to achieve business goals.
• Managing the effectiveness of advertising campaigns, tracking key metrics, and delivering regular progress reports to demonstrate achievements and return on ad spend (ROAS).
• Strategically planning, overseeing, and optimizing the advertising budget to maximize the impact and effectiveness of campaigns.
• Utilizing analytical tools to gather insights, identify opportunities for improvement and guide data-driven decision-making in advertising strategies.
• Reporting on DEMO and team meeting 

💙 What we offer

• Culture: Empowering, ’Bottom Up’ culture valuing initiative, collaboration, and continuous learning, aligned with values of Safety, Simplicity, Modernity, Encouragement, Helpfulness, and Accountability.
• Impact & Growth: Work with an industry-leading product (250,000+ monthly users, 10M+ downloads).
• Innovation: Freedom to innovate and utilize expertise in a company that encourages ideas and initiative.
• Work Flexibility: Remote work with flexible 40-hour/week schedule, accommodating team meetings and collaboration.
• Vacation: 20 business days (4 weeks) annual leave.
• Sick Leave: 20 business days (4 weeks) annual sick leave.
• Holidays: Ukrainian public holidays are default days off.
• Learning & Development: Reimbursement for development courses/training, fostering a continuous professional development culture where employees seek opportunities and managers coach teams.

We are seeking a highly capable Full Stack Engineer with deep experience in Python and React, who thrives on harness engineering—building the automation, testing scaffolding, execution environments, and orchestration layers that allow experimental prototypes to evolve into stable, production-ready MVPs.

This role is ideal for engineers who can fluidly move between backend services, frontend product development, integration tooling, and developer platforms. You’ll help transform early-stage prototypes into systems that are testable, observable, repeatable, and reliable at small-to-medium scale.

At this position, your work directly contributes to rapid experimentation: turning concepts built by the founder into scalable, deployable software.

Key Responsibilities

• Build and maintain full stack applications using Python on the backend and React on the frontend. 
• Design and implement APIs, services, and orchestration layers to support product workflows and internal tooling. 
• Develop harnesses for testing, simulation, validation, execution, and monitoring of complex workflows and agent-based systems. 
• Create reusable frameworks for:
• workflow execution
• automated test runs
• sandboxed environments
• synthetic data generation
• scenario replay
• regression validation
• Build developer-facing tools to improve engineering velocity, reliability, and repeatability. 
• Integrate external APIs, services, and third-party tools into internal platforms.
• Implement logging, tracing, observability, and error handling across systems.
• Collaborate with product, design, and platform stakeholders to turn experimental ideas into scalable technical solutions.
• Help define engineering standards for reliability, maintainability, and deployment readiness.

Required Qualifications

• Hands-on experience building production systems with Python. 
• Hands-on experience building modern frontend applications with React. 
• Experience designing and consuming REST APIs and/or async service architectures.
• Demonstrated experience in harness engineering: building tools for testing, validation, simulation, automation, or execution environments.
• Comfortable working across both application code and engineering infrastructure/tooling.
• Strong understanding of software design, debugging, and performance optimization.
• Experience with relational databases such as PostgreSQL, MySQL, or similar.
• Familiarity with CI/CD pipelines, Git-based workflows, and deployment practices.
• Ability to work independently, move quickly, and make sound engineering tradeoffs.

Preferred Qualifications

• Experience with workflow orchestration, agent-based systems, or automation pipelines.
• Experience with Docker, cloud infrastructure, and containerized environments.
• Familiarity with background job systems, queues, and event-driven architectures.
• Experience building internal platforms, QA tooling, evaluation frameworks, or developer productivity tools.
• Exposure to LLM/AI workflow orchestration, RPA, or test automation systems.
• Experience with observability tools, telemetry, and production monitoring.

What Success Looks Like

• You can ship polished frontend and backend features end-to-end. 
• You can build robust harnesses that make systems easier to test, measure, debug, and scale.
• You improve both product delivery and engineering leverage.
• You help the team move faster by making complex workflows repeatable and reliable.

Ideal Candidate Profile

You are more than a feature engineer; you think in systems and ask:
- How do we test this?
- How do we simulate this?
- How do we validate edge cases?
- How do we make this reproducible?
- How do we instrument this so it can be trusted in production?

You enjoy building the glue, scaffolding, and runtime support that transform experimental ideas into dependable products.  

🧩  About the company
We turn marketing into a powerful tool that helps businesses win in their market. We built a new type of platform: a marketplace for future customers. On our site, businesses buy leads the same way they buy products in an online store. They can see key details about each lead before they pay, which gives them clear information, control over what they buy, and more predictable results. We are the top lead marketplace in the USA, and we are growing fast.

 

🧩  Role overview
We are looking for a Strategic Supply Partnerships Manager to own and grow our network of lead providers, which is the main supply engine of our business. In this role, you will take care of current providers and keep finding and onboarding new ones so we always have a steady flow of high‑quality leads. You will focus on making lead quality, volume, and consistency better across all providers, and your results will be judged by how provider performance helps grow revenue, lowers our risk of relying on just a few partners, and creates a more reliable supply to support our marketplace growth.

 

🧩  What You’ll Be Doing:

• Own the full provider lifecycle - from sourcing and onboarding to performance management and accountability
• Monitor provider performance across lead quality, volume, conversion rates, and refunds
• Identify and act on quality issues and delivery drops before they impact revenue
• Push providers to improve output and marketplace fit, not just maintain current performance
• Build and maintain a strong pipeline of new providers to ensure continuous supply growth
• Reduce dependency on individual providers by expanding and diversifying the network
• Collaborate with internal teams to align provider output with client demand and business needs

🧩  What Makes You a Strong Fit:

• 2+ years of experience managing vendors, affiliates, partners, or external performance-based relationships
• Proven ability to hold partners accountable to quality and delivery standards
• Experience sourcing, evaluating, negotiating, and onboarding external partners
• Strong data-driven mindset - comfortable making decisions based on performance metrics
• High level of organization - able to manage 50+ relationships without losing control
• Strong written and verbal English - used daily for communication with providers
• Comfortable working in a fast-paced, performance-driven environment with clear ownership

🧩  Bonus if you have:

• Experience in real estate, lead generation, or marketplace businesses
• Familiarity with performance-based payouts or revenue share models
• Background in affiliate management or supply-side operations
• Experience building or scaling vendor/provider operations

🧩  Why You’ll Love It Here:

• You’ll work at the core of a product-led, AI-powered startup where data drives every decision
• Your work will ship fast and impact thousands of users
• High autonomy, low bureaucracy: we trust you to own your domain
• Remote-first culture with flexible hours and async-friendly communication
• Salary (fixed base) ABOVE the market average
• A smart, passionate team that moves fast, supports each other, and builds cool stuff
• 15 paid vacation days plus 5 paid sick days annually
• Paid access to courses, books, and growth resources
• Real decision-making power and ownership of your results

PwC is a global network of more than 370,000 professionals in 149 countries that turns challenges into opportunities. We create innovative solutions in audit, consulting, tax and technology, combining knowledge from all over the world.

PwC SDC Lviv, opened in 2018, is part of this global space. It is a place where technology is combined with team spirit, and ambitious ideas find their embodiment in real projects for Central and Eastern Europe.

What do we guarantee?

• Work format: Remote or in a comfortable office in Lviv - you choose.
• Development: Personal development plan, mentoring, English and Polish language courses.
• Stability: Official employment from day one, annual review of salary and career prospects.
• Corporate culture: Events that unite the team and a space where everyone can be themselves.

Job Description:
Join our PwC team to colaborate on various projects for some of the most recognized companies worldwide. As a Power Platform Developer, you will support the development and configure pre-built Power Platform solutions (Power Apps, Power Automate) according to guidelines.

Key Responsibilities:

• Design and develop business applications and workflows using Microsoft Power Platform (Power Apps, Power Automate);
• Collaborate with business stakeholders to gather requirements and translate them into technical solutions;
• Integrate Power Platform solutions with Microsoft services such as SharePoint, Dataverse, and Office 365;
• Troubleshoot, support, and continuously improve existing applications and workflows;
• Ensure efficient and scalable solutions while working independently to solve problems.

Core Requirements:

• At least 2+ years of hands-on experience with Microsoft Power Platform (Power Apps, Power Automate);
• Solid experience in designing and developing business applications and workflows;
• Understanding of integrations with other Microsoft services (e.g., SharePoint, Dataverse, Office 365);
• Collaborate with business stakeholders to gather requirements and translate them into technical solutions;
• Troubleshoot, support and improve existing Power Platform solutions;
• Strong problem-solving skills and ability to work independentl;
• English level: B2 or higher (mandatory).

Nice to have:

• Experience with Power BI, Python services;

• Familiarity with low-code/no-code best practices.

   

Policy statements:
https://www.pwc.com/ua/uk/about/privacy.html

We are looking for a Senior Data Engineer. This is not a standard ETL role. You will work on a high-load system processing 10,000+ executions per minute, building scalable pipelines where AI and LLM logic are embedded directly into production data flows.

The role combines data engineering, backend thinking, infrastructure ownership, and real production AI integration.

What you will do:

• Design and maintain scalable data pipelines in Python on Google Cloud Platform
• Build and optimize AI-driven scoring flows using LLMs for real-time identity enrichment
• Work with BigQuery, Apache Spark, and Apache Iceberg for heavy data processing
• Maintain high-load orchestration with custom Python nodes and complex workflows
• Own deployment and release processes (CI/CD)
• Optimize PostgreSQL performance under heavy load
• Investigate incidents and resolve root causes permanently

• Use AI engineering tools such as Claude in daily development

   

Requirements:

• 4+ years of experience in Data Engineering / Backend Engineering
• Strong Python skills
• Commercial experience with production LLM integration (OpenAI / Anthropic / Gemini)
• Strong knowledge of GCP (Cloud Functions, IAM, Networking)
• Experience with BigQuery, Spark, Iceberg
• Good understanding of Kubernetes
• Experience with workflow orchestration tools (n8n is a strong plus)
• Strong practical knowledge of PostgreSQL

• English level B2+

   

What is important for us:

• Ownership mindset
• Fast learning ability
• Strong problem-solving approach
• Active AI usage in engineering work
• Focus on practical results over unnecessary complexity

Numerical Technologies LTD is a provider of custom software solutions and services specializing in risk, limits, and regulatory capital. We are currently looking for a Senior Python Developer to join our team. 

Project: Portfolio management systems for a US financial institution. 

What you will be doing:  

As part of the team, you will be participating in a client project focused on portfolio management solutions. You will help develop new software features, as well as support and maintain existing ones. You will be writing scalable and fault-tolerant code, debugging programs, and integrating applications with third-party web services. You will be collaborating closely with the client and product manager to understand the system’s functional and non-functional requirements, and contribute to code quality through unit testing, integration testing, code review, and system design using Python to build robust software that aligns with the client’s business needs. 

What we are looking for:  

• A strong programming background with Python and OOP skills.
• Deep understanding of algorithms and data structures.
• Experience building backend systems and working with REST APIs.
• Proficiency with SQL databases.
• Experience with FastAPI and Linux environments.
• Strong problem-solving skills and ability to collaborate effectively in a team environment.
• Upper-Intermediate level of English or above. 
• Experience with React and AWS is a plus. 

What we offer: 

• Competitive compensation depending on experience and skills. 
• Regular assessments and salary reviews. 
• Paid personal days. 
• Mental health support program. 
• Language classes. 
• Flexible working schedule. 

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

Join Sii as an experienced Stibo STEP Solution Architect on a project for a multinational healthcare company that develops and markets medical devices, aiming to improve the lives of people with intimate health conditions.

In this role, you will become part of the MDM & Quality Solutions Department and take ownership of designing and delivering high-quality IT solutions within the STEP platform, working at the intersection of business and technology – translating complex requirements into scalable, secure, and efficient solutions while ensuring alignment with enterprise architecture standards.

Your tasks:

• Designing and implementing end-to-end solutions within the Stibo STEP platform based on business requirements
• Collaborating with Domain Architects to defining and executing architectural strategy and design principles
• Evaluating new requirements and proposing scalable, secure, and efficient technical solutions
• Leading technical decision-making by balancing business needs, risks, and system constraints
• Reviewing and approving solution designs, documentation, and validation processes
• Acting as the main technical point of contact for 2nd and 3rd level STEP support issues
• Driving improvements in system performance and process efficiency across STEP applications
• Designing and supporting integrations between STEP and internal/external systems
• Leading deployment, monitoring, and operational processes for STEP solutions
• Communicating with stakeholders and vendors, ensuring alignment and continuous improvement

Requirements:

• Demonstrating proven experience in working as a Solution Architect or in a similar senior technical role
• Working hands-on with the Stibo STEP (MDM/PIM) platform in complex environments
• Understanding Master Data Management and data governance principles
• Applying knowledge of system integration, APIs, and enterprise application architecture
• Translating business requirements into scalable and effective technical solutions
• Working within Agile (Scrum) environments and cross-functional teams
• Demonstrating strong analytical and problem-solving skills
• Communicating effectively with stakeholders and managing expectations
• Creating and maintaining high-quality technical documentation and solution designs
• Using English fluently in both spoken and written communication
• Tax residency in Ukraine is required

Team Summary

You will join a high-impact, independent strategic division that acts as the primary bridge between our deep-tech engineering teams and our global clients. We are a lean group of professionals who value autonomy, ownership, and professional efficiency over hierarchy. 

The team is responsible for managing the company’s most valuable assets, with a strong focus on long-term stability and sustainable growth. Acting as a true one-stop shop, we handle the business side of operations, allowing engineers to stay focused on building technology.

Job Summary

The Account Business Partner is the key strategic partner for client accounts, responsible for the commercial and administrative ownership of the portfolio. Your mission is to transform standard service delivery into a deeply integrated partnership by acting as the client’s trusted advisor and using your technical expertise to support pre-sales activities, identify upsell opportunities, and drive account growth.

You own relationship health, ensure end-to-end value delivery, and serve as a protective shield for technical teams. Success in this role is defined by strong client retention, seamless operations, and the natural expansion of our footprint within each account.

Responsibilities and Duties

• Manage 2–3 key accounts, ensuring a deep understanding of each client’s business goals and pain points
• Lead drafting of Statements of Work (SOW), contract negotiations, and financial forecasting/billing oversight
• Serve as the first point of contact for high-level issues, mobilizing internal resources to provide rapid solutions
• Identify opportunities to add value to the client’s business and facilitate the expansion of service offerings
• Coordinate closely with Delivery Directors and PMs to align business commitments with technical execution
• Own the pre-sales process to support upsell activities with new business units

Qualifications and Skills

• 5+ years of experience in project management, account management, or client-facing roles within IT or the tech sector
• Solid foundational knowledge of IT products, services, and software development lifecycles
• Ability to translate complex technical solutions into clear business value for non-technical stakeholders
• Deep understanding of market trends, competitive landscapes, and evolving client needs within the tech sector
• Experience with project management and documentation ecosystems, specifically Jira and Confluence
• Ability to analyze and interpret account data to drive strategic decision-making
• Familiarity with IT contract terms, legal frameworks, and various pricing models
• Fluent English with the ability to lead high-stakes negotiations and present to C-level stakeholders
• Proactive problem-solving mindset, anticipating issues and resolving them before they escalate
• Strategic empathy, balancing client business pressures with engineering team constraints
• Resilience under pressure, staying effective during high-stakes negotiations or complex challenges

 We offer multiple benefits that include

• The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member
• Competitive salary packages with performance-based annual reviews
• Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company
• Employment via Contract of Employment (UoP) in complete alignment with Polish Labour Law
• Guaranteed paid vacation, public holidays, and medical leaves as per statutory regulations
• Continuous growth and development opportunities through internal knowledge hubs, corporate courses, and free English classes
• Comprehensive private medical insurance to supplement your standard NFZ coverage.