Jobs

We are looking for a Senior .NET Engineer to join our team and work on a SaaS platform for the hospitality industry. The product helps restaurants manage reservations, customer relationships, and online bookings while ensuring high availability and performance.
Requirements

• 7+ years of commercial experience with .NET / C#
• Strong experience with ASP.NET Core and Entity Framework Core
• Hands-on experience with Microsoft Azure (App Services, Functions, Azure SQL, Cosmos DB, Service Bus, Application Insights, Key Vault)
• Strong knowledge of SQL Server, query optimization, and database performance tuning
• Experience with REST APIs and distributed systems
• Experience with Git and CI/CD pipelines
• Strong troubleshooting and production support skills
• Experience working with cloud-based applications in production
• Experience using AI development tools (GitHub Copilot, Cursor, Claude Code or similar)
• Upper-Intermediate English or higher

Would be an asset

• Experience with Kubernetes (AKS)
• Experience with payment integrations
• Experience with high-load SaaS products
• Experience modernizing legacy .NET applications

Responsibilities

• Develop and maintain backend services and APIs
• Monitor, troubleshoot, and resolve production issues
• Optimize application and database performance
• Deploy and maintain cloud infrastructure on Azure
• Upgrade frameworks, libraries, and Azure services
• Integrate third-party services and payment providers
• Collaborate with international teams and participate in code reviews
• Share knowledge and contribute to technical documentation

We are looking for a Senior Full Stack Engineer to join an innovative product team building a modern cloud-native SaaS platform. You'll work on a highly scalable application using the latest technologies across both frontend and backend, contributing to product architecture, feature development, and platform scalability.

This role is ideal for an engineer who enjoys working across the full stack, solving complex technical challenges, and building high-quality applications in a collaborative environment.

Tech Stack:

• Backend: TypeScript, Node.js, GraphQL
• Frontend: React 19, TanStack Query & Router, Tailwind CSS
• Cloud: AWS Lambda, AppSync, DynamoDB, Cognito, S3
• Infrastructure: AWS CDK, GitHub Actions
• Testing: Vitest, Playwright

Responsibilities:

• Design, develop, and maintain modern full-stack applications using TypeScript.
• Build scalable backend services with Node.js and GraphQL.
• Develop responsive and intuitive user interfaces with React.
• Design and implement serverless solutions on AWS.
• Create reusable, maintainable, and well-tested code.
• Participate in system architecture and technical decision-making.
• Build and maintain CI/CD pipelines and cloud infrastructure.
• Write automated unit, integration, and end-to-end tests.
• Perform code reviews and contribute to engineering best practices.
• Collaborate closely with Product Managers, Designers, and Engineers to deliver high-quality features.

Requirements:

• 5+ years of commercial software development experience.
• Strong expertise in TypeScript.
• Solid experience with Node.js.
• Strong knowledge of React and modern frontend development.
• Experience building GraphQL APIs.
• Hands-on experience with AWS serverless architecture (Lambda, AppSync, DynamoDB, Cognito, S3).
• Experience with Infrastructure as Code, preferably AWS CDK.
• Experience with GitHub Actions and CI/CD workflows.
• Strong understanding of software architecture, design patterns, and clean code principles.
• Experience writing automated tests.
• Upper-Intermediate English or higher

Nice to Have

• Experience with TanStack Query and TanStack Router.
• Experience with Tailwind CSS.
• Knowledge of React Hook Form and Zod.
• Experience with Storybook.
• Experience working with cloud-native SaaS products.
• Familiarity with scalable event-driven architectures.

English requirement: Upper-Intermediate or higher

Developer Requirements

• 5+ years of commercial Full-Stack development experience
• Strong expertise in React, Next.js, TypeScript, Node.js (or similar modern stack)
• Experience building scalable web applications and APIs
• Strong knowledge of PostgreSQL/MySQL and modern databases
• Experience with cloud platforms, Docker, and CI/CD
• Ability to work independently and integrate into an existing engineering team
• Upper-Intermediate English or higher

Most Important
We’re specifically looking for AI-native engineers.
Developers should use AI as a core part of their daily workflow - for coding, debugging, architecture, research, testing, documentation, and accelerating delivery while maintaining high quality.
This is a must-have, not a nice-to-have.


 

Project description

We are looking for a strong Java-focused SDET who is comfortable working close to the application code. Not only a test writer, but someone who can design and extend automation infrastructure. Able to understand how another application consumes the SDK / DevKit and convert those flows into stable integration tests.

Comfortable debugging complex Java behavior, reading production code, and discussing implementation details with developers.

Strong enough technically to help choose and implement the right Swing UI automation approach.

Responsibilities

Design, implement, and maintain Java-based integration tests for a geoscience data management application.

Simulate real product usage through the application's SDK / DevKit layer.

Analyze SDK-level calls from consuming applications and convert them into automated integration test scenarios.

Create and maintain unit tests using JUnit and related Java testing tools.

Validate data retrieval, consistency, error handling, and compatibility across database-backed workflows.

Contribute to the design of a Swing UI automation approach for Windows and Linux.

Investigate test failures, debug Java code, analyze logs, and provide clear root-cause findings.

Integrate automated tests into CI/CD pipelines and improve overall test stability and maintainability.

Skills

Must have

Strong hands-on experience with Java.

Solid understanding of object-oriented programming, clean code principles, and maintainable test architecture.

Experience with JUnit, AssertJ, Mockito, or similar Java testing tools.

Solid experience designing unit/integration/E2E tests for complex Java applications.

Experience with JNI

Ability to test through SDKs, DevKits, APIs, or internal service layers.

Good SQL knowledge and experience with relational databases.

Strong debugging skills in Java applications.

Experience with Maven or Gradle.

Experience with Git and CI/CD pipelines (preferably, Gitlab CI).

Proficiency with AI tools

Ability to analyze API calls, data flows, logs, and application behavior to convert real usage scenarios into automated tests.

Nice to have

Java Swing UI automation.

Experience with Java Access Bridge, AssertJ Swing, or similar tools.

Basic exposure in C++

Cross-platform testing on Windows and Linux.

JVM instrumentation, reflection, Java agents, or injecting test/control logic into a running Java application.

Experience building custom test automation frameworks.

Experience testing SDKs, libraries, plugins, or developer-facing APIs.

Isolated database test environments.

Experience with geoscience, seismic, well data, or enterprise data management systems.

Languages

English: B2 Upper Intermediate

Join Sigma Software as a Senior Test Engineer and help shape the quality of a cutting-edge social shopping platform that blends e-commerce with social networking. This role offers the opportunity to work on a high-impact product used by millions of fashion lovers worldwide.
 

You will be part of our Mobile & Web Solutions department, collaborating with talented professionals and applying the Quality Assistance model to ensure exceptional user experiences.

We at Sigma Software value innovation, teamwork, and professional growth. By joining us, you will gain access to diverse projects, supportive colleagues, and a culture that rewards initiative and expertise.
 

Customer

Global marketplace for fashion, combining e-commerce with social networking features. It enables users to sell customized or rare clothes and accessories, promoting sustainable consumption by recycling unwanted items for money.
 

Project

The project is a social shopping platform where users create profile pages to post pictures and descriptions of items for sale, enhanced with hashtags for easier discovery. Focused on clothes retail, it aims to deliver an evocative buying and selling experience. Key tasks include payment system integration and accessibility feature implementation.

 

Requirements

• 4,5+ years of QA experience with end-to-end ownership of testing processes
• Strong exploratory testing skills beyond scripted test cases
• Experience testing mobile apps (iOS and Android), including release processes
• Ability to work autonomously across multiple cross-functional teams
• Familiarity with agile workflows, feature flags, and staged rollouts
• Strong requirements analysis skills, able to clarify edge/corner scenarios
• Comfortable with context switching and supporting multiple teams in parallel
• SQL — ability to write moderately complex queries
• API Testing — hands-on experience with REST APIs using tools like Postman
• Solid understanding of HTML, CSS, cookies, caching, browser behavior
• Experience deploying builds via Android Studio, Xcode, or similar tools
• Git — practical experience with branches, commits, code reviews, pull/merge requests
• Upper-Intermediate+ English proficiency
   

Responsibilities

• Work as part of the product development team, collaborating closely with customer-side developers
• Follow and support the Quality Assistance process
• Plan and estimate testing activities
• Create and maintain test documentation
• Design and execute manual, snapshot, and UI tests for new features
• Perform Functional, Regression, and Compatibility testing across Web and Mobile platforms
• Conduct release validation, smoke testing, and post-deployment quality checks
• Provide clear and regular status and progress reports
• Collaborate with product owners, business analysts, and development teams to ensure product quality
• Identify, document, and communicate risks and issues constructively

With over 70 products and 3 billion installs worldwide, AIBY is at the forefront of mobile and web app development with a focus on AI technology. Innovation and team spirit are the backbones of our company, and thanks to them, we’re proud of titles like ChatOn, iScanner, ARTA, Forma, OnSkin, Plantum, and many others. At AIBY, you can enjoy the work you do while helping millions of people.

Web is where we’re building what comes next. In 2025, web grew 10x year-over-year — and by mid-2026, we’re already close to repeating that entire year’s numbers. Now we’re looking for a Head of Web Growth to join one of our Business Units and take the web even further: from a strong growth engine to the dominant revenue driver across its app portfolio.

You’ll report to the CEO of the BU and lead a team of growth managers, who are already delivering solid results. Your job is to help them aim higher and build the systems that make strong performance repeatable.

What you will do:

• Own web revenue performance across the unit and set the direction for how the team moves these numbers
• Audit current web growth processes and build the strategy from there
• Lead the shift to web-to-web as the primary growth format — scaling what works and fixing what doesn’t
• Lead, mentor, and develop a team — raise the hard skills bar, drive accountability, and create the kind of environment where ambitious targets feel energizing rather than exhausting
• Work closely with heads of product, marketing, analytics, and engineering to move initiatives from strategy to execution

What you should have:

• 5+ years of experience in growth or product marketing within subscription-based environments, with a strong focus on web and web-to-web
• 3+ years of leadership experience managing growth teams and driving cross-functional collaboration across product, marketing, analytics, and engineering
• Proven track record of taking subscription products through different stages: you’ve launched from scratch, scaled what was already working, and diagnosed why something that should be growing isn’t
• Deep understanding of unit economics and web growth metrics: CAC, LTV, ROAS, retention, churn, funnel conversion — and how they connect to each other
• Understanding of how LTV prediction models are built and what drives them
• Experience with payment infrastructure: you know how subscription billing works end-to-end
• Hypothesis-driven approach to growth: you build experiments, read results honestly, and iterate fast
• Sharp analytical thinking — you work comfortably with numbers, notice what others miss, and can translate data into decisions
• Solid people management instincts — you know how to develop talent
• Strong written and spoken English

What we offer:

• Results-oriented colleagues committed to scaling impactful products. Your team will help you achieve the most ambitious goals
• Remote-friendly work environment with high autonomy and minimal bureaucracy
• Competitive fixed salary+ generous performance-based bonus
• Medical insurance (depending on the location)

• Paid vacations, sick days, and other benefits

   

Location

AIBY is a team of strong international top talents. This role allows for either hybrid (combining in-office and remote work), fully remote or in-office work.

About the Project

We're building a new iGaming brand focused on the LATAM market with strong financial backing, experienced industry leadership, and ambitious growth plans.

This is a unique opportunity to join at an early stage and take ownership of one of the company's key business directions. We're looking for a business-minded leader who can combine strategic thinking with hands-on execution and build a high-performing operation from the ground up.

Responsibilities

• Define and execute the business strategy for the LATAM region.
• Take full ownership of business growth, operational performance, and market expansion.
• Build, lead, and scale cross-functional teams across multiple business areas.
• Drive commercial performance and achieve ambitious revenue targets.
• Oversee Affiliate, CRM, Product, Marketing, Operations, VIP, Payments, and Customer Support in collaboration with department heads.
• Analyze key business metrics including FTD, Deposits, GGR, NGR, Retention, ROI, CPA, LTV, and profitability.
• Develop partnerships with key affiliates, service providers, and strategic partners across LATAM.
• Identify new growth opportunities and optimize business performance through data-driven decision-making.
• Collaborate closely with founders and executive leadership on long-term strategy and company development.
• Build scalable processes and maintain high operational standards as the business grows.

Requirements

• 5+ years of experience in the iGaming industry.
• Proven experience in senior leadership positions such as COO, General Manager, Country Manager, Head of Operations, Head of Growth, or similar.
• Strong understanding of the LATAM online casino market.
• Experience launching or scaling casino operations in LATAM.
• Deep knowledge of Affiliate Marketing, CRM, Product, VIP, Retention, and commercial operations.
• Strong analytical mindset with experience managing business performance through KPIs.
• Experience building and leading international teams.
• Excellent communication and leadership skills.
• Fluent English.
• Spanish or Portuguese would be a strong advantage.

Nice to Have

• Experience launching new casino brands from scratch.
• Existing network of partners within the LATAM iGaming market.
• Experience managing multi-million marketing budgets.
• Strong understanding of licensing, compliance, and payment solutions for LATAM.

We Offer

• Opportunity to become one of the key decision-makers in a fast-growing international company.
• High level of autonomy with real influence on business strategy.
• Remote-first environment with flexible working hours.
• Competitive fixed salary with an attractive performance-based bonus.
• Long-term career growth within an expanding international business.
• The opportunity to build and scale a business almost as your own.

Workload: Full-time
Start: ASAP
Duration: Long-term (3+ years)
Location: open
English: B2+

Key Requirements & Technical Stack
Core Task: Integration with a 30-year-old legacy healthcare system and rewriting legacy screens into modern UI.
Database & Legacy: Deep hands-on experience with Oracle ADF and PL/SQL.
Modern Backend: Java / Spring (thin service layer architecture).
Frontend: React (rewriting screens from scratch).
Role Focus: Technical leadership/execution on legacy decoupling, data integration, and UI modernizing.

(candidates only with white-label CVs explicitly showing experience with Oracle ADF/PL/SQL and React!)

About the Client

Our client is transforming the world of alternative investments, making them accessible to a broader range of investors. Traditionally, private funds and other alternative assets have been available only to institutional players due to their complexity and regulatory barriers. They change that by providing a cutting-edge platform that simplifies access, management, and distribution of these investment opportunities.

About the Role

As a Senior Scala Engineer, you’ll be part of the team building the core backend systems that power the client’s investment platform. Your mission will be to design and develop high-performance, scalable, and reliable distributed services that enable seamless data flow and financial transactions at scale.

You’ll contribute to the architecture of microservices and real-time data pipelines, applying functional programming principles and leveraging technologies like Akka, Play Framework, and streaming frameworks such as Spark or Flink. Working closely with cross-functional teams, you’ll help shape technical direction and ensure the platform continues to deliver secure, robust, and efficient solutions for the global investment community.

Role Responsibilities:

• Develop and maintain robust backend systems using Scala, ensuring high performance, scalability, and reliability.
• Participate in designing distributed systems and microservices architectures. Contribute to decisions on frameworks, libraries, and best practices.
• Write clean, testable, and maintainable code. Promote functional programming principles and ensure code quality through code reviews and unit/integration tests.
• Identify bottlenecks and optimize application performance, scalability, and fault tolerance.

Role Requirements:

• 4+ years working with Scala
• Hands-on experience with SQL and NoSQL databases (e.g., PostgreSQL, Cassandra, MongoDB)
• Experience with functional programming paradigms
• Experience with Akka, Play Framework, or ZIO ecosystem
• Strong communication skills with English B2+ for direct cooperation with the client
• Project starter mindset with ability to work independently and take ownership in a changing environment.
• Strong curiosity to the fintech domain.

Nice to have:

• Experience in fintech, banking, or payment systems
• Knowledge of data streaming and real-time analytics
• Exposure to Big Data frameworks (Spark, Flink)

Interview Process

1. Intro Call with Recruiter (45 min)
2. Technical Interview (up to 60 min)
3. Client Interview (up to 60 min)

Looking forward to having a mutually interesting conversation with you!

Simulmedia is looking for an experienced and dynamic Data Engineer with a curious and creative mindset to join our Data Services team. The ideal candidate will have a strong background in Python, SQL and large-scale data pipelines. This is an opportunity to join a team of amazing engineers, data scientists, product managers and designers who are obsessed with building the most advanced TV and streaming advertising platform in the market. As a Data Engineer you will design, build and operate the data platform that powers the company: pipelines that ingest and transform very large datasets from external data partners, data models that the whole company queries, and services that make that data available to internal products. You will work on a team that empowers the other teams to use our huge amount of data efficiently. Using a large variety of technologies and tools, you will solve complicated technical problems and build solutions to make our pipelines robust and fault tolerant and our data easily accessible throughout the company.

Location: Ukraine is mandatory. Our offices are located in Kyiv and Lviv. Teams are located in Kyiv and Lviv and primarily work remotely with occasional offline meetings.

Responsibilities:

• Design and build batch data pipelines that ingest, validate and transform multi-billion-row datasets from external data providers and internal systems
• Model complex real-world data: dimensional models, reference data, and temporal data whose attributes change over time (e.g. slowly changing dimensions), and evolve those models safely as upstream sources change their schemas and semantics
• Develop and operate workloads on our lakehouse platform (Databricks / Spark / Delta) and our data warehouse (Redshift), including migrating existing pipelines from the warehouse to the lakehouse
• Orchestrate pipelines with Airflow: scheduling, dependencies, retries, backfills and alerting
• Prove correctness, not just completion: design parity checks and reconciliation queries when replacing an existing pipeline, run large historical backfills, and investigate data discrepancies down to the row level
• Build and maintain Python services and REST APIs that serve data to internal products
• Optimize for performance and cost: query tuning, table design, workload management and right-sizing compute
• Own what you ship: monitor production pipelines, participate in incident triage and root-cause analysis, and harden systems so the same failure does not happen twice
• Collaborate cross-functionally with product managers, data scientists and stakeholders across the company to deliver on product roadmap
• Work within an Agile team that releases cutting-edge new features regularly
• Take a high degree of ownership and freedom to experiment with new technologies to improve our software

Qualifications:

• Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience
• 7+ years of work experience as a data engineer
• Proficiency in Python and using it as the primary development language in recent years
• Expert-level SQL: comfortable writing, reading and tuning complex analytical queries against very large tables, and debugging why two result sets disagree
• Hands-on experience with a distributed data processing platform (Spark/Databricks strongly preferred; EMR, Snowflake or BigQuery also relevant) and with a columnar data warehouse (Redshift, Snowflake, BigQuery, ClickHouse, etc)
• Ability to design complex data models: normalized, dimensional and temporal (slowly changing dimensions, effective-dated records, point-in-time correctness)
• Experience with workflow orchestration tools (Airflow or similar): building DAGs, managing dependencies and running backfills
• Experience integrating third-party data feeds: handling schema drift, late or missing deliveries, vendor data-quality defects and versioned reference data
• Experience building REST services in Python (FastAPI, Flask, etc)
• Experience developing, maintaining, and debugging problems in large server-side code bases
• Working knowledge of AWS (S3, IAM, ECS or similar compute) and Docker
• Good knowledge of engineering best practices and testing (unit test, integration test, code review, CI/CD)
• The desire to take a high level of ownership of the things you work on
• Ability to learn new things quickly, maintain a high bar for quality, and be pragmatic
• Must be able to communicate with U.S based teams
• Experience with Delta Lake / medallion lakehouse architectures is a plus
• Experience migrating legacy pipelines between platforms with strict parity requirements is a plus
• Experience with advertising, media or measurement industry data is a plus
• Ability to communicate effectively with the U.S.-based teams and work 11:00 AM — 8:00 PM EEST (11:00 - 20:00).

Our Tech Stack:

• Almost everything we run is on AWS (S3, ECS, EMR, RDS and more)
• Python is our primary language; SQL is everywhere
• Databricks (Spark, Delta Lake) is our lakehouse platform; Redshift and Postgres are our warehouses and operational databases
• Airflow orchestrates our pipelines
• Docker for packaging; GitHub Actions and Jenkins for CI/CD
• Grafana, Sentry and OpenSearch for observability
• Datasets measured in billions of rows

Interview Process:

1. Pre-screening (30 mins)
2. Technical Interview (1h)
3. System Design (1.5h)
4. Product Interview (30 mins)
5. Offer.

We are developing an international payroll product that helps companies calculate and pay employee salaries across multiple jurisdictions accurately, on time, and in compliance with local regulations.

The product is demonstrating strong growth, and we are looking for a commercial leader who will build the sales function, establish a partner channel, and take full ownership of the business unit's revenue performance.

Key Responsibilities

New Business Acquisition

• Develop and execute the outbound sales strategy, including ICP definition, outreach sequences, negotiations, and deal closure.
• Manage the sales pipeline in CRM and prepare weekly forecasts.
• Ensure a structured handoff of signed clients to the Customer Success team.

Partner Channel Development

• Identify, negotiate, and onboard strategic partners, including HR consultancies, accounting firms, EOR/PEO providers, and HCM/ERP integrators.
• Define commercial terms, negotiate SLAs, and launch joint go-to-market initiatives.

Revenue Expansion Within Existing Accounts

• Identify and execute upsell and cross-sell opportunities together with Customer Success.
• Own and improve the project's Net Revenue Retention (NRR).

Customer Onboarding Support

• Provide commercial support during client implementation and remove onboarding blockers.
• Ensure Time-to-Live does not exceed 45 days from contract signature.

P&L Ownership

• Manage the business unit's financial model, including revenue, margins, and unit economics.
• Conduct monthly P&L reviews, quarterly forecasting, and annual budgeting.

Team Building and Leadership

• Hire and manage the commercial team as the business scales, including SDRs, Account Executives, and Partner Managers.

Requirements

Must-Have

• 5+ years of experience in B2B sales, growth, or commercial leadership roles within SaaS, FinTech, HCM, Payroll, or related industries.
• Proven track record of closing deals in international markets.
• Experience managing a P&L or owning a revenue function.
• Experience building and managing partner channels.
• English proficiency at B2 level or higher.

Nice-to-Have

• Familiarity with global payroll platforms such as Deel, Remote, Rippling, or Papaya Global.
• Understanding of EOR/PEO operating models.
• Experience launching and scaling new geographic markets.
• Experience managing commercial teams.

What We Offer

• Full ownership, authority, and budget to build and scale the business direction.
• Competitive compensation package consisting of a fixed salary and performance-based bonus tied to ARR growth.
• Direct collaboration with the CEO and CFO.
• International market exposure and a product with proven demand.
• Remote or hybrid work format.
• Career growth aligned with the expansion of the business.

Simulmedia is seeking an experienced Senior Backend Engineer to join our engineering team, working on the backend and data infrastructure powering our TV advertising platform - spanning National Linear and CTV. This role sits within a distributed system of up to ~30 microservices, and you'll be primarily responsible for building, scaling, and operating backend services - with secondary exposure to backend-for-frontend work in TypeScript/Node.

In this role you will work closely with product managers, designers, and data engineers to ensure seamless integration of analytics features into the platform. The ability to frequently iterate and deliver high-quality features that are owned end-to-end is crucial in this role.

We're looking for someone who takes ownership, communicates directly and honestly, and cares about the reliability and craft of the systems they build - not just shipping features but understanding how they behave in production.

Location: Ukraine is mandatory. Our offices are located in Kyiv and Lviv. Teams are located in Kyiv and Lviv and primarily work remotely with occasional offline meetings.

Key Responsibilities:

• Design, build, and maintain backend services in Ruby (Roda) operating within a large-scale distributed microservice architecture.
• Contribute to backend-focused TypeScript/Node.js work, including API design and tRPC procedures, in support of Next.js applications.
• Own service reliability: instrumentation, monitoring, and observability across services (tracing, metrics, structured logging).
• Collaborate closely with data engineers on data pipelines, ETL processes, and ensuring clean, well-modeled data flows between services.
• Investigate and resolve production incidents; contribute to and follow oncall/runbook practices.
• Design and evolve APIs with strong attention to authentication, authorization, and security best practices.
• Participate in code reviews, pair programming, and knowledge-sharing sessions to ensure high-quality, maintainable code.
• Write thorough unit and integration tests for backend services
• Work independently while communicating clearly across a distributed, cross-functional team

Qualifications:

• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• 5+ years of professional Ruby backend development experience; prior experience may be with Rails, Roda, Sinatra, or similar - deep Roda-specific knowledge is not required, as long as the underlying Ruby fundamentals are strong.
• Experience operating within a distributed systems / microservice architecture.
• Solid working knowledge of observability tooling - OpenTelemetry, Datadog, Grafana, Prometheus, or equivalent - including setting up tracing, metrics, and alerting, not just consuming dashboards.
• Experience with error tracking/monitoring tools such as Sentry, Honeybadger or equivalent.
• Hands-on experience in TypeScript and Node.js, with practical experience in Next.js for backend/API-layer work.
• Experience with tRPC or comparable typed API frameworks.
• Solid experience with AWS and its core services (e.g. EC2, S3, RDS, SQS/SNS, ECS/EKS), including infrastructure-as-code with AWS CDK, plus containerized applications (Docker).
• Experience designing and evolving APIs, including auth, security, and versioning concerns.
• Experience working in a large distributed system with dozens of independent services, potentially written in different languages; ability to quickly get up to speed in unfamiliar code and trace a request's path across multiple services end-to-end.
• Experience with CI/CD pipelines - we currently use Jenkins and are actively migrating to GitHub Actions, so comfort with either (and ideally migration experience) is valuable.
• Ability to use AI coding tools (e.g. Claude Code, Codex, Cursor, or similar) effectively to speed up development, debugging, and code comprehension.
• Strong communication skills; ability to work independently and take ownership of services end-to-end.
• Ability to communicate effectively with the U.S.-based teams and work 11:00 AM - 8:00 PM EEST (11:00 - 20:00).

Bonus Points for:

• Python experience (data tooling, scripting, or services)
• Experience in AdTech or digital advertising/media analytics
• Prior experience in a service migration, decomposition, or platform-modernization effort

Interview Process:

1. Pre-screening (30 mins)
2. Technical Interview (1h)
3. System Design (1.5h)
4. Product Interview (30 mins)
5. Offer.

Simulmedia is seeking an experienced Senior Full Stack Engineer to join our engineering team and help build and improve our products. We build software for TV advertising — campaign management, delivery, and reporting used by advertisers and agencies.

In this role, you will work closely with product managers, designers, and data engineers to deliver features across the stack. The ability to frequently iterate and deliver high-quality work that is owned end-to-end is crucial in this role.

Location: Ukraine is mandatory. Our offices are located in Kyiv and Lviv. Teams are located in Kyiv and Lviv and primarily work remotely with occasional offline meetings.

Key Responsibilities

• Develop both frontend and backend services using React, Next.js, and TypeScript, ensuring seamless integration between components.
• Build robust, scalable APIs using tRPC to serve data to the frontend application.
• Create efficient pages using server-side rendering (SSR) or static site generation (SSG) via Next.js for performance-optimized analytics displays.
• Collaborate with designers to implement responsive and visually appealing user interfaces using Tailwind CSS, ensuring a smooth, intuitive experience for the platform’s users.
• Optimize the full stack to ensure quick load times, low-latency data fetching, and smooth user experiences, especially for data-heavy visualizations and analytics pages.
• Deploy and manage the platform using Vercel, taking advantage of its serverless functions for backend processes and ensuring efficient deployments and scaling.
• Own features end-to-end — from API and data layer through UI to production — with a strong focus on quality and maintainability.
• Participate in code reviews, pair programming, and knowledge-sharing sessions to ensure high-quality, maintainable code.
• Implement unit and end-to-end testing for both frontend and backend components to ensure reliability and reduce bugs in production.

Qualifications

• Education: Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• Experience: 5+ years of senior-level experience in full stack development, with a strong focus on web applications and data-driven platforms.
• Core Languages: Strong proficiency in TypeScript, including strong typing and interface design for scalable codebases.
• Frontend Expertise: Deep understanding of React and its ecosystem, including hooks, functional components, and React Server Components (RSC). Proficiency in Tailwind CSS for building responsive, accessible, and aesthetically pleasing UIs.
• Data Visualization: Experience in building data visualization tools and dashboards using React-based libraries (e.g., D3.js, Chart.js).
• Rendering: Experience with SSR and SSG using Next.js, optimizing for performance and SEO.
• Backend Expertise: Proficiency in backend development (e.g., Bun, Node.js) with tRPC as an API framework. Experience designing and developing APIs, handling authentication, authorization, and security best practices.
• Data Architecture: Proficiency in building scalable and reliable data-fetching layers, especially for real-time or large-scale analytics.
• System Design: Experience designing and evolving scalable web application architectures — APIs, data flow, and frontend/backend boundaries.
• Infrastructure: Experience with serverless architectures, understanding of edge computing, and CDN usage for enhancing performance and reliability. Solid experience with Vercel or other serverless platforms for deployment, CI/CD pipelines, and performance monitoring.
• Testing: Experience with unit and end-to-end testing frameworks such as Vitest, Cypress/Playwright, or similar.
• Version Control: Proficiency in Git, including experience with pull requests, code reviews, and branching strategies.
• Soft Skills: Ability to work independently and collaboratively in a team environment. Strong communication and interpersonal skills.
• Timezone: Ability to communicate effectively with the U.S.-based teams and work 11:00 AM — 8:00 PM EEST (11:00 - 20:00).

Bonus Points For

• Experience with Ruby
• Familiarity with CTV platforms or working experience in digital advertising or media analytics.
• Knowledge of SEO, accessibility, and performance optimization for web applications.

Interview Process

1. Pre-screening (30 mins)
2. Technical Interview (1h)
3. System Design (1.5h)
4. Product Interview (30 mins)
5. Offer.

Client Overview:
Our Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible.
The Client is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. 

Requirements:

• 5+ years as a Product Owner in a software development environment
• Strong requirements elicitation, analysis, and documentation across business, functional, and non-functional needs
• Hands-on experience writing clear user stories with acceptance criteria and managing/prioritizing a product backlog
• Experience working in Agile / Scrum / Kanban teams
• Proficiency with Jira (required) and Confluence (or comparable Agile and documentation tooling)
• Familiarity with SaaS business models and cloud-based architectures, with a working understanding of AWS/Azure
• Understanding of REST APIs, integrations, and data flows
• Process mapping and modeling skills (BPMN, flow diagrams)
• Strong stakeholder management, facilitation, and workshop leadership
• Solid understanding of the software development lifecycle (SDLC)
• Strong analytical and problem-solving skills
• Ability to work in a distributed, multi-timezone team (EU, UK)

• Excellent English communication skills, comfortable with both technical and non-technical audiences

   

Nice to Have:

• Experience with AI-assisted development and analysis tools (Copilot, Claude, Cursor)
• Background in enterprise / B2B SaaS, multi-tenant platforms, or large-scale portals
• Experience supporting a platform consolidation, migration, or feature-parity initiative
• Certification such as CBAP, PMI-PBA, or Agile/Scrum (CSM, SAFe) / Product Owner (CSPO)
• Experience with SQL or data querying tools

• Exposure to compliance or regulatory-driven environments (data privacy, security standards)

   

Responsibilities:

• Own, refine, and prioritize the product backlog for the portal feature-parity workstream
• Translate product vision and business objectives into clear, actionable user stories with acceptance criteria in Jira
• Elicit, analyze, and document business, functional, and non-functional requirements
• Facilitate requirements workshops, stakeholder interviews, and discovery sessions
• Lead and support sprint planning, backlog grooming, and release planning
• Ensure requirements traceability from business objective through to delivery
• Collaborate with engineering, UX, DevOps, and QA to clarify requirements and resolve ambiguities
• Document workflows, process diagrams, system interactions, and data flows
• Define KPIs and success metrics for new features and releases
• Support UAT planning and validation to confirm delivered functionality meets business intent
• Identify risks, dependencies, and impacts of proposed changes
• Engage with Client product and engineering counterparts in EU/UK on scope, integration points, and delivery milestones

• Participate in Agile ceremonies (stand-ups, planning, retros, demos)

   

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

Description
 

We’re looking for an experienced Product Owner/Business Analyst to help our client build a graph-native intelligence and workflow platform in the FinTech domain. The platform is an intelligence layer that ingests documents and communications, structures data, and powers compliance workflows, approvals, and controlled AI recommendations.

You’ll act as the primary link between the client, business stakeholders and delivery team. You’ll translate complex business workflows and regulatory requirements into a clear, prioritized product backlog, own scope decisions, and make sure the platform matches the main principles defined during the Discovery phase.

Requirements
 

• 5+ years of experience as a Product Owner or Business Analyst on B2B SaaS or enterprise platform products. 
• Hands-on experience working with intelligent/AI-powered platforms defining scope, writing requirements, and collaborating with AI/ML teams. 
• Some experience in FinTech or another regulated financial services domain. 
• Experience working directly with senior business stakeholders to negotiate scope and priorities. Strong stakeholder management and communication skills.
• Experience in Agile/Scrum delivery (sprint planning, backlog refinement, story writing, acceptance criteria). 
• Fluent English. 
• Structured thinker who can map end-to-end workflows and identify edge cases (e.g. trusts, entities, multiple jurisdictions).

Responsibilities
 

• Own and prioritize the product backlog end-to-end: acceptance criteria, edge cases, definition of ready, all in place before engineering starts.
• Translate discovery findings, user interviews, and stakeholder input into clear epics, user stories, and acceptance criteria.
• Define and continuously refine MVP scope, balancing business value, regulatory requirements, and technical feasibility.
• Act as the primary point of contact between the client, business stakeholders and the delivery team.
• Collaborate with architecture and engineering on integration scope (KYC/ID providers, e-signature,CRM, etc.) without owning technical implementation decisions.
• Define success metrics and KPIs (e.g. onboarding cycle time, advisor capacity, compliance review time) and track value realization post-release.
• Support sprint planning, backlog refinement, release planning, and stakeholder demos/reviews.
• Maintain product documentation: scope, requirements traceability, decision log, and roadmap.

Nice to have
 

• Familiarity with financial services regulatory frameworks (e.g. MiFID II, GDPR, or local equivalents) and data residency/sovereignty requirements. 
• Conceptual understanding of relationship/graph-based data modeling for complex entity structures.
• Familiarity with digital ID/KYC providers, e-signature platforms, or PMS/OMS and custodian integrations. 
• Comfortable partnering with business analysts, architects, and UX designers across client and internal teams to convert ambiguous requirements into clear specifications.