Jobs

About us

DroneOps is a company creating innovative UAV-related products, focused on UAV autonomy and navigation, founded in 2023. We are a team of innovators and inventors who take on the duty to help the armed forces of Ukraine defend our country and democracy by providing reliable advanced systems that simplify their work, improve personnel safety, and enable more cost-effective and precise UAV mission execution.

Overview

We are looking for a Middle / Senior Computer Vision / Deep Learning Engineer to extend our onboard navigation capabilities with modern perception and learning-based methods.

This is a hands-on R&D role: you work from research and prototypes to production on edge hardware, collaborate with software, and flight teams, and help shape how new CV/DL features are built and shipped. The role suits someone who can follow state-of-the-art work, implement what fits our constraints, and care about real-world performance—not only offline benchmarks.

Responsibilities

Relocalization & navigation

• Design and develop satellite, map, and semantic navigation capabilities that improve the overall quality of our navigation
• Build and maintain pipelines for map and reference-data preparation before missions
• Extend the existing visual-inertial navigation stack with relocalization and map-based aiding features
• Develop training pipelines for these tasks (data preparation, training, evaluation, and iteration)
• Create utilities that make map preloading and mission setup convenient for operators and integrators
•  

Research & implementation

• Track relevant research and industry approaches; prototype and adopt methods where they clearly improve the product
• Reimplement or adapt algorithms when off-the-shelf solutions do not fit our data, hardware, or latency requirements
• Define evaluation metrics and acceptance criteria for new features before field and deployment rollouts
•  

Edge deployment & production

• Optimize models and inference for target onboard hardware
• Integrate new features into the production codebase with stable APIs, logging, and failure handling
• Take part in architecture decisions, code review, and team practices that keep production quality high as the stack grows
•  

Required skills & experience

• 3+ years of practical experience in computer vision and deep learning
• Strong Python; ability to write clear, maintainable code for experiments and production paths
• Experience with training and deploying deep learning models (PyTorch)
• Familiarity with model optimization for edge or embedded devices (pruning, quantization, ONNX/TensorRT-class tooling, or equivalent)
• Comfort working with geospatial or map-related data and preprocessing pipelines
• Practical production mindset: reproducible experiments, versioning, and validation on real data
• English B2+ for documentation and technical discussion; Ukrainian for day-to-day team communication
•  

Nice to have

• Experience with deep learning keypoint detection and matching approaches
• Comfortable with geometric computer vision (camera models, epipolar geometry, robust estimation)
• Multi-sensor fusion / SLAM / EKF background
• UAV, robotics, or aerospace field experience
• Experience with satellite or aerial imagery, semantic segmentation, or visual place recognition
•  

What we offer

• Competitive salary
• Reservation from mobilization
• Impact on improving our country's defense capabilities
• 21 days of vacation + public holidays, sick leaves

Overview

We are looking for a Middle Computer Vision / Visual Navigation Engineer to improve and extend our GPS-independent navigation stack.

This is a hands-on R&D role: you work with real flight data, bring algorithms from experimentation to production, and collaborate closely with software and flight teams. Day to day you balance navigation and CV development, post-flight analysis, sensor calibration, and integration work. The role suits someone who is comfortable with classical geometry-based CV, modern feature pipelines, and turning prototypes into stable behavior on constrained hardware.

Responsibilities

Navigation & computer vision

• Improve existing visual-inertial navigation on real UAV platforms - both copters and planes
• Develop and refine algorithms for estimating position and orientation from camera and onboard sensor data
• Research and implement additional computer vision that extend the current system (e.g. use of satellite data, map or scene-based cues)
• Handle difficult real-world conditions: vibration, blur, changing scenery, sensor noise, and platform-specific setup differences

Flight analysis & tooling

• Analyze flight recordings to find issues, propose fixes, and verify improvements
• Extend automated post-flight analysis to reduce repetitive manual work
• Define clear quality metrics and use them to judge whether changes are ready for the deployment

Calibration

• Improve calibration procedures for cameras, IMU, and related sensors on new platforms
• Make calibration more repeatable and less dependent on one-off manual steps

Cross-team delivery

• Work closely with software and flight teams on testing, integration, and rollout
• Bring new methods into the production system with attention to performance and reliability
• Document limitations, risks, and operational guidance for the rest of the team

Required skills & experience

• 2+ years of practical experience in computer vision
• Solid fundamentals in image processing and geometric computer vision (camera models, epipolar geometry, robust estimation)
• Good Python for prototyping, analysis, and integration
• Practical production mindset
• English B2+ for documentation and technical discussion; Ukrainian for day-to-day team communication

Nice to have

• Experience with multi-sensor fusion / SLAM / EKF
• Sensor calibration experience on robotic or aerial platforms
• Map-based or semantic localization experience
• Deep learning applied to perception / matching
• UAV / robotics / aerospace experience

What we offer

• Competitive salary
• Reservation from mobilization
• Impact on improving our country's defense capabilities
• 21 days of vacation + public holidays, sick leaves

Our Mission and Vision

At Solidgate, our mission is clear: to empower outstanding entrepreneurs to build exceptional internet companies. We exist to fuel the builders — the ones shaping the digital economy — with the financial infrastructure they deserve. To achieve that, we're on a bold path: to become the #1 payments orchestration platform in the world.

We believe the future of payments is shaped by people who think big, take ownership, and bring curiosity and drive to everything they do. That's exactly the kind of teammates we want on board.

Solidgate is part of Endeavor — a global community of the world's most impactful entrepreneurs. We're proud to be the first payment orchestrator from Europe to join — and to share our expertise within a network of outstanding global companies.

About the Team and Role

You'll join the Core team — the team responsible for the services that sit at the heart of Solidgate's payment processing. Core services define what a payment is, integrate with numerous internal services for correct routing, run antifraud checks, and process payments through providers, covering card payments as well as Apple Pay and Google Pay. This is the critical path for every payment on the platform, so the team's work directly defines the reliability and speed of the whole system.

The team is actively growing new functionality, supporting existing services, working down technical debt, and maintaining an SLO of 99.99%+ across all of its services. The stack is built around high-load, low-latency requirements: a microservices architecture with Kotlin as the primary language, Protobuf RPC over Buf/Connect, PostgreSQL as the main database, and Kafka for asynchronous processing, with fully automated production deployments and an advanced monitoring and observability setup. Infrastructure is continuously improved by a dedicated platform team, with IaC ensuring transparent, reproducible, and scalable management.

Your team — Product Manager, Tech Lead (Backend), three Backend Software Engineers (Senior), one Frontend Software Engineer (Middle), AQA Engineer, and System Analyst.

What you'll own

Your focus will be on:

• taking part in product decisions across the full development lifecycle
• designing and developing backend functionality for our products
• collaborating with other teams to build reliable solutions for payment processing
• improving the performance, scalability, quality, and reliability of our systems

You'll grow from feature-level tasks toward owning a dedicated service or domain, taking part in the team's design and technical decisions.

You're a great fit if you have

• 3+ years of experience with Java and/or 1+ year with Kotlin
• Confident hands-on experience with SQL databases (PostgreSQL/MySQL)
• Experience designing reliable, scalable systems
• Experience with distributed systems
• Experience with cloud environments (AWS/GCP)
• Technical/computer science-related degree
• 2+ years of active hands-on use of AI tools

Nice to have

• Fintech experience and experience with high-load, complex systems
• Observability/Alerting tools (Prometheus, Grafana)
• Infrastructure as Code (Terraform)
• Message brokers (Kafka/SQS/RabbitMQ)

Why Solidgate?

High-impact role. You'll work at the very core of our payment processing — the critical path for every transaction, including Apple Pay, Google Pay, and card payments.

Great product. We've built a fintech powerhouse that scales fast. Solidgate isn't just an orchestration player — it's the financial infrastructure for modern Internet businesses. From subscriptions to chargeback management, fraud prevention, and indirect tax — we've got it covered. We hold financial licenses in key regions and are a direct Visa & Mastercard partner and sub-reseller (top 5 globally).

Massive growth opportunity. Solidgate is scaling rapidly — this role will be a career-defining move.

Top-tier tech team. Work alongside our driving force — a proven, results-driven engineering team that delivers.

Modern engineering culture. TBDs, code reviews, solid testing practices, metrics, alerts, and fully automated CI/CD.

💌 The Extras: 30+ days off, unlimited sick leave, free office meals, health coverage, and Apple gear to keep you productive. Courses, conferences, sports and wellness benefits — all designed for ideas, focus, and fun.

Tomorrow's fintech needs your mindset. Come build it with us.

🫂 Know top talent? We're always on the lookout. Refer someone for our role, and if they get hired, there's a bonus waiting for you — simple as that.

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 
Head of Marketing (Whitechain)!

Requirements

— 6+ years total marketing, with at least 3 years marketing infrastructure projects (L1, L2, rollups, middleware, oracles, bridges, dev tooling), not just consumer apps or tokens.
— Built and led a marketing team from a small base.
— Proven track record of growth that converts into durable on-chain outcomes (sustained TVL, active users). Thinks in funnels (awareness, builder and user acquisition, activation, retention) and owns the outcome metric end to end, not just top-of-funnel reach
— Strategic and hands-on. Sets the strategy and, in the early build phase before the team is staffed, executes directly: positioning, content, launches.
— Demonstrated full-funnel growth with real numbers: CAC by channel, activation, retention, on-chain attribution.
— Demonstrated organic and earned growth, not only paid acquisition.
— Budget discipline. Every line of spend tied to a forecast and a metric, able to break down a past budget by line and show the KPI behind each spend.
— Product marketing. Can translate a technical value proposition into audience-specific narratives for builders, protocol founders, and retail users.
— Competitive positioning. Experience positioning a challenger against established players using market and on-chain data.
— Experience taking a project to public visibility
— Hands-on GTM and launch experience, run end to end.

Responsibilities

— Build and scale the marketing team, defining structure, priorities, and operating processes.
— Hire, develop, and manage talent across ecosystem marketing, growth, content, community, design, brand, PR, and partner marketing.
— Define and execute Whitechain's marketing strategy across builders, protocols, and users.
— Own planning and budget allocation
— Spend-to-outcome monitoring and reallocate based on what works.
— Define Whitechain's positioning as an exchange-backed chain.
— Develop messaging and narrative frameworks for key audiences, translating the technical value proposition into clear narratives for builders, protocol founders, and users.
— Own brand identity and the design function, keeping a consistent visual and verbal system across channels.
— Work with ecosystem partners to maximize protocol visibility, data coverage, and discoverability across the broader Web3 landscape.
— Own competitive intelligence: track competing chains and ecosystems on TVL, activity, and narrative, and position Whitechain against them.
— Lead go-to-market strategy for protocol launches, ecosystem initiatives, and major product releases.
— Drive co-marketing programs with ecosystem partners.
— Turn Whitechain distribution into a growth asset for builders.
— Equip BD with launch and pipeline collateral: pitch decks, one-pagers, and ecosystem case studies that help convert the priority protocol target list.
— Partner with DevRel to grow builder awareness and developer acquisition.
— Design and execute campaigns that drive wallet activation, on-chain engagement
— Build Whitechain's presence across industry media, social channels, and ecosystem communities.
— Lead KOL, ambassador, and community programs.
— Develop content that strengthens Whitechain's credibility among builders, protocols, and users.
— Own the Whitechain marketing site and launch landing pages as conversion surfaces.
— Build measurement frameworks tied to ecosystem outcomes, with clear metric definitions so results are not gameable.
— Track acquisition, activation, engagement, retention, and marketing ROI.
— Optimize investment based on measurable business impact.

Good to have

— Experience at an exchange-backed chain or marketing the CEX-to-on-chain bridge.
— DeFi-native fluency (TVL, launch mechanics, seasons).
— Established KOL networks and ambassador program experience.
— Regional marketing across multiple geographies.
— Developer marketing and grant-program marketing experience.
— Experience working alongside a partner's in-house marketing team.
— Strong personal writing and content craft.

Work conditions

Immerse yourself in Crypto & Web3:

— Shape the Future — Work on high-impact blockchain products at the forefront of Web3.
— Innovate & Create — Your ideas drive real-world solutions and technological breakthroughs.
— Global Reach — Build scalable solutions for businesses and users worldwide.
— Web3-Powered Culture — A team of visionaries who believe in decentralization and innovation.

Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— Additional days off for national holidays.

WhiteBIT offers all candidates an equal opportunity to join the team. All hiring decisions are made without regard to race, national origin, gender identity or sexual orientation, age, religion, disability, medical condition, marital status, familial status, veteran status, or any other legally protected characteristic of an individual.

Ready to disrupt the industry with us? Apply now and let’s build the decentralized future together!

We are looking for an experienced CFO  to lead finance and operations activities in our company, distributed legally and geographically. We operate in USA, UK, EU and Ukraine. Most of our clients are based in the United States, so you must have a very good command of English. We consider only candidates having 5+ years experience in similar positions.

Responsibilities include:

• Lead accounting across the US, UK, Ukraine, and other international entities.
• Ensure compliance with local and international accounting standards.
• Own global tax planning and compliance.
• Design and maintain the international corporate and tax structure.
• Lead budgeting, forecasting, and financial planning.
• Own management reporting and financial analysis.
• Provide financial insights to support strategic decisions.
• Manage treasury, cash flow, and liquidity.
• Optimize working capital.
• Analyze resource allocation across the business.
• Monitor project profitability and margin performance.
• Drive cost control initiatives.
• Establish and track financial and operational KPIs.
• Oversee legal operations and corporate compliance.
• Manage contracts and corporate governance processes.
• Lead the finance, accounting, and legal teams.
• Manage relationships with external auditors, tax advisors, and legal partners.
• Build scalable financial and operational processes.
• Drive process automation and operational efficiency.
• Partner with the CEO on company strategy and business growth.

We offer:
A highly skilled team, challenging projects, remote work with flexible hours, professional equipment, company-sponsored certifications, training, and opportunities for continuous learning and development.
Our benefits package includes 18 days of paid vacation, 5 paid sick days, and additional days off for important life events.

This position requires speaking English and Ukrainian languages fluently2

We are looking for a Marketing Data Analyst(part-time) who will build Dripify's marketing attribution and reporting. You will be the architect of how we understand marketing performance commercially: which channels drive revenue, which content converts to paid customers, and where our acquisition spend is actually working.Once the foundation is solid, the scope grows - this engagement starts fractional and is designed to evolve into a full-time role.

Requirements:

• 3+ years as a marketing or data analyst;
• Familiarity with the modern data stack:warehouse (BigQuery/Snowflake/Redshift), ELT (Fivetran / Airbyte), transformation layer (dbt);
• Proven ability to build a marketing attribution model from the ground up - you've connected multi-touch data to actual revenue outcomes before;
• Experience building a BI/visualization layer from raw data (Looker Studio, Tableau, or similar);
• Solid grasp of B2B SaaS funnel mechanics: trial-to-paid conversion, CAC, LTV, MRR attribution;
• You understand what the numbers mean commercially, not just technically.

Nice to have:

• Experience connecting content performance to revenue - article or page-level attribution, mapping organic content consumption to downstream paid conversions;
• Experience with affiliate tracking platforms (Impact, PartnerStack, etc.);
• Еxperience with GA4.

Responsibilities:

• Audit the current GA4 and BigQuery setup: identify tracking gaps, attribution gaps, and data quality issues;
• Design and document the event taxonomy, tracking plan, and naming conventions aligned to real business questions;
• Implement a cross-channel attribution model that connects marketing touchpoints (organic, paid, affiliate, content, email) to trial starts and paid conversions;
• Implement and document the full data model;
• Design and build dashboards that give a clear, consistent view of marketing performance;
• Build channel-level performance views for organic, PPC, affiliates, content, and email, each showing contribution to pipeline and paid revenue, not just traffic;
• Build a content performance dashboard with article-level data including visits, trial starts, and MRR contribution;
• Build a top-of-funnel to revenue waterfall: traffic → trial → paid conversion by source;
• Deliver regular reporting: weekly channel snapshots and monthly marketing performance reviews;
• Conduct campaign and experiment analysis to measure the impact of launches, tests, and budget changes;
• Generate proactive insights: flag anomalies, identify growth opportunities, and support quarterly OKR tracking.

Hiring process:

✅ Interview with Talent Acquisition Specialist — ✅ Final Interview with CMO & Engineering Manager — ✅ Reference Check — ✅ Offer 🎉

Revenue Grid is a product-based B2B SaaS company with Ukrainian roots and a global footprint. We build an AI-driven Revenue Intelligence Platform used by thousands of sales teams across the US and Europe to automate sales workflows and prevent revenue leaks.

As we continue to scale out our platform, we’re looking for a Senior Full-Stack Developer who can confidently own frontend tasks while deeply understanding backend architecture and product logic.

This role is ideal for a senior engineer who wants to influence the product, work across the full stack, and collaborate closely with Product and Engineering teams.

Why this role might be a great fit

• You’ll work on a mature, growing B2B SaaS product with real users and real impact
• You’ll own features end-to-end — from idea and design to implementation and release
• Strong focus on backend development, with meaningful frontend involvement
• Opportunity to influence architecture and technical decisions
• Low bureaucracy, high ownership, and a culture of trust and accountability
• A team that values clarity, proactivity, and engineering excellence

Your Responsibilities

• Own frontend development (~30% of the workload), while contributing to backend development (~70%) to ensure well-designed, scalable, and product-oriented features
• Work on integrations with external services and APIs
• Collaborate closely with Product, Design, and Architecture teams
• Continuously improve performance, stability, and code quality across the system
• Own features throughout the full product lifecycle — from concept to release and support

Requirements

• Advanced Gen AI tools adoption
• Strong experience with TypeScript
• Solid knowledge of React and state management solutions (e.g. Redux) and RxJS
• Experience working with HTML5, CSS3
• Experience with modern frontend tooling and build systems: Vite / Webpack / esbuild; npm / yarn / pnpm; linting, formatting, and code quality tools
• Strong backend expertise with modern versions of .NET
• Proficiency in C#, ASP.NET, WebAPI
• Experience applying IoC / DI principles
• Hands-on experience with Entity Framework
• Strong SQL skills (MS SQL)
• Experience in designing and consuming RESTful services
• Experience deploying and running applications on Kubernetes
• Understanding of containerization (Docker)
• Experience with Microsoft Azure
• Ability to work across frontend and backend, owning features end-to-end
• Product-oriented mindset and strong problem-solving skills
• English at intermediate+ level for daily communication

Nice to have

• Hands-on experience with Office 365 / Microsoft Graph API
• Experience working with Microsoft Exchange, including Exchange Web Services (EWS)
• Experience developing Chrome Extensions
• Familiarity with WebRTC APIs / protocols
• Background in CRM, ERP, or B2B SaaS products
• Experience working with complex, long-living enterprise systems
• Understanding of scalability, performance optimization, and system design

What you get

• Remote-first work model — from anywhere in Europe
• Contract via Ukrainian FOP or standard B2B
• A global product with tens of thousands of active users
• Skilled teammates who value your input and expertise
• Unlimited vacation policy — we trust responsible adults
• Stability, transparency, and long-term collaboration

If you’re looking for a senior full-stack role with real product impact, we’d love to hear from you. Join us in building the future of AI-driven revenue intelligence.

The Role

We’re looking for a Marketing Leader to lead growth for a global EdTech mobile product with a proven, scaled acquisition engine. This is a hands-on leadership role for someone who enjoys momentum, ownership, and the challenge of pushing a strong system further.

You’ll step into an organization running at a 7-digit monthly marketing spend, with a clear ambition to triple that level in 2026. Your focus will be on scaling performance marketing, raising the bar on creative and experimentation, and continuously improving efficiency as we grow.

As Head of Marketing, you’ll own the marketing function end to end — performance marketing, experimentation, creative production, and team development. You’ll work closely with the GM and leadership team to translate business goals into clear, measurable growth plans, while keeping execution fast, collaborative, and a little bit fun.

What will you be responsible for

• Define and own the overall marketing strategy for one of our subscription-based EdTech mobile apps, turning business goals into a clear, executable acquisition plan.
• Own and optimize product-wide CPA at scale, with Meta Ads as the primary growth driver and a strong focus on efficiency and volume.
• Scale acquisition through continuous experimentation, testing new UA channels and approaches beyond the core setup.
• Own marketing performance tracking end-to-end — from channel-level KPIs to CPA monitoring and optimization.
• Lead, mentor, and grow the UA and Creative Production teams, supported with the right resources, tooling, and clear priorities.
• Drive team performance through regular feedback, structured evaluations, and individual development plans.
• Evaluate, test, and implement new MarTech tools and integrations to improve speed, insight, and scalability.

Your expertise

• Strong marketing leadership background with 5+ years of experience in B2C performance marketing (Mobile/Web, Tier-1). We’re looking for someone who has previously excelled as a Head of Performance, UA Lead/Meta Lead, or Creative Marketing Lead.
• Proven track record of managing 7-figure monthly spends with a focus on positive ROI and net profit growth.
• Deep-dive expertise in Meta Ads, along with a strong understanding of Google UAC, TikTok, and other UA sources.
• Hands-on experience solving complex scaling problems and navigating platform-specific volatility.
• Expertise to build and optimize a creative production process/factory, with a strong focus on automation and efficient integrations.
• Experience leading teams in fast-paced startup environments, including hiring, performance management, and building IDPs.

Competencies & Mindset

• Systematic and data-driven approach to every decision you make.
• T-shaped mindset with a deep understanding of how effective marketing impacts overall business goals.
• Strong discovery & hacker mindset with a passion for constant experimentation and testing new hypotheses and approaches.
• Ability to thrive in a “fast-paced” environment where agility and speed of execution are key.

Hiring Process

• Stage 1: Interview with HR (1h).
• Stage 2: Technical assignment.
• Stage 3: Interview with General Manager.
• Stage 4: Interview with C-level team.

What we offer for your success

• Monthly bonus system based on key metrics.
• Very warm and friendly working environment and flexible working schedule.
• 20 days off + paid national holidays, and 12 sick days paid by the company per year.
• Medical insurance, and health protection programs (with COVID-19 and dental coverage).
• Continuous professional development and growth opportunities.

We are not just a company, we are Clario! We put the customer at the heart of all that we do, we achieve our best together, take responsibility, and challenge our limits to create a difference!

To apply for this position, please send your CV (in English only) with a detailed description of your career, experience, skills, and projects. We guarantee the privacy of any information received.

What do we expect:

• 5+ years of Software Engineering experience

• 4+ years of experience with React Native + Typescript, a strong understanding of application lifecycle and library components

• Strong Software Design knowledge: FP, Design patterns, state management tools

• Strong experience with RTK Query & Redux

• Experience with Firebase & push-notifications

• Validated experience building web applications for mobile devices and mobile app development for Apple App Store or Google Play Store using RN

• Familiarity with native build tools, like XCode, Gradle, Android Studio, IntelliJ

• Proficient understanding of Git

• Knowledge of Agile (preferably SCRUM) development practices

• At least Intermediate level of English

Would be great:

• Experience with native iOS and Android components

Responsibilities:

• Process improvements proposing and taking ownership of full-cycle of features delivering

• Active participation in technical discussions

• Architect, design, and team cooperation to deliver features and services into production

• Writing and implementing efficient, extendable, and high-quality code in balance with rapid feature delivery

• Cross code reviews, technical documentation creation, and supporting

Job Description

Overall

4+ years in cybersecurity, security testing, or software engineering with a strong security focus
Structured, methodical approach to testing - able to plan and document, not just test ad-hoc
Good written English - reporting is a significant part of the role

Must have

Hands-on experience in vulnerability assessment and penetration testing (web, API, network, or infrastructure)
Secure code review experience
Solid coding skills (Python preferred) for automation, tooling and test scripts
Experience writing automated tests and building them into repeatable suites
Strong understanding of vulnerability classes (OWASP Top 10, CWE) and CVE/CVSS triage
Familiarity with standard security tooling (e.g. Burp Suite, Nmap, SAST/DAST scanners)

Nice to have

Experience applying AI/LLMs to security work - highly desirable
Vulnerability management processes and tooling
Cloud security (AWS/Azure/GCP) or OT/embedded/product security background
CI/CD security integration
Certifications: OSCP, CEH, CISSP, or similar

Job Responsibilities

Perform vulnerability assessments and penetration testing against applications, services and infrastructure
Conduct secure code and configuration reviews
Triage and validate findings; assess severity, eliminate false positives, support remediation
Write and maintain automated security tests and tooling
Design test plans, execute testing campaigns, document and report results
Evaluate AI-assisted approaches to security testing and help integrate what works into the workflow

Department/Project Description

An enterprise technology group is building a dedicated security validation team focused on vulnerability assessment and security testing across the group's products and systems. The team runs structured testing campaigns: penetration testing, vulnerability discovery and triage, secure code review, and building automated test suites to make the process repeatable at scale.

The team also gets early access to specialized AI models and evaluates how they can accelerate security testing - an area we're actively investing in, though the core of the work remains hands-on security engineering. Scope covers internal systems as well as business-unit products across the group, agreed campaign by campaign. The team starts small and scales into a permanent capability.

Skill Category

QA - Automation

Keyskills - Must Have

• Security
• Application Security
• Penetration Testing and Reporting

Applause is a profitable, well-capitalized operator of consumer subscription apps across privacy, security, health, productivity, and accessibility. The model is simple: acquire high-retention, category-leading apps and scale them. The portfolio includes PicSafe, Nomorobo, Meditation Moments, Strongbox, and Voice Dream.

The apps already have top 1% retention, strong brands, and high organic traffic, so paid growth compounds on proven products instead of propping up weak ones. There is real budget behind growth that works.

The company has raised $100M+ across debt and equity and runs remote-first with ~40 people worldwide (roughly 40% US, 50% Europe, 10% elsewhere). It is now building its growth function from the ground up.

This is execution role in paid user acquisition. The primary mandate is to plan, launch, and optimize paid campaigns that drive installs and new subscription revenue across the portfolio — starting with one to two apps and expanding as you prove results.
 

Responsibilities

• Build and ship features across multiple iOS applications.
• Develop with Swift, SwiftUI and UIKit.
• Design scalable technical solutions for complex product challenges.
• Improve architecture, performance, accessibility and reliability.
• Build shared infrastructure including analytics, feature flags, subscriptions and release tooling.
• Collaborate closely with Product, Design and Engineering.

Requirements

• Strong production experience building iOS applications.
• Excellent Swift, SwiftUI and UIKit knowledge.
• Ability to maintain existing Objective-C code.
• Expertise in at least one advanced Apple framework or domain (HealthKit, accessibility, audio, speech, background processing, sync, offline architecture, etc.).
• Experience with multiple Apple frameworks.
• Understanding of accessibility, offline synchronization and analytics infrastructure.
• Experience with subscription platforms such as RevenueCat or Superwall.
• Strong system design and problem-solving skills.

Nice to Have

• CI/CD and release automation.
• Internal frameworks or SDK development.
• Audio or speech technologies.
• Open-source contributions or successful side projects.
• Experience in consumer subscription products or mobile gaming.

What Offered

• Fully remote (daily team meeting at 4:00 PM CEST (3:00 PM BST / 10:00 AM ET)
• Full-time role (part-time from 3 days/week considered for exceptional candidates).
• High ownership and technical autonomy.
• Work across multiple successful consumer apps.
• Flexible PTO (approximately 2 weeks) and paid sick leave.
• Direct influence on engineering standards across the entire product portfolio

About the Role

We are looking for a highly experienced Senior Mobile & Embedded Software Engineer to lead the end-to-end development of a companion mobile application for a Bluetooth-enabled skincare device.

This is a hands-on role for a senior contractor who can take ownership of the entire development lifecycle - from defining the architecture and technical specifications to building, integrating, testing, and delivering the final solution.

The successful candidate will work independently as the primary engineer on the project, collaborating directly with the client and taking full ownership of the product from concept through launch.

Following the initial product release, there is an opportunity to continue working with the company on a long-term part-time basis, providing ongoing support, maintenance, and feature enhancements for a few hours each week.

Responsibilities

• Design and develop a mobile application for a Bluetooth-enabled skincare device.
• Define the overall system architecture and application structure.
• Implement reliable Bluetooth Low Energy (BLE) communication between the mobile application and the device.
• Collaborate on firmware integration and hardware communication.
• Write detailed technical specifications and system documentation.
• Lead the development process from concept through production release.
• Troubleshoot hardware/software integration issues.
• Ensure high performance, reliability, and maintainability of the application.
• Deliver a production-ready solution within the project timeline.

Requirements

• 5+ years of experience in mobile application development (iOS, Android, or cross-platform).
• Strong expertise with Bluetooth Low Energy (BLE).
• Solid experience integrating mobile applications with embedded systems and firmware.
• Hands-on experience developing software for connected skincare devices or skincare technology products is required.
• Proven experience delivering products from concept to production.
• Ability to independently define architecture, make technical decisions, and own the full development lifecycle.
• Experience writing technical specifications and system requirements.
• Strong debugging and problem-solving skills.
• Excellent communication skills and ability to work independently.

Nice to Have

• Experience with connected medical, wellness, beauty-tech, or IoT devices.
• Experience with BLE device certification and testing.
• Familiarity with FDA-regulated or consumer healthcare products.

bill_line is an international fintech company with Ukrainian roots.

We have built and continue to develop a payment platform for businesses of all sizes operating online.

Our clients include e-commerce stores, marketplaces, banks, insurance companies, charitable organizations, and many other businesses processing online payments. One of our key advantages as a payment service provider is our ability to deliver custom solutions while following a client care approach throughout every stage of cooperation—from the initial integration request to implementation and transaction support.

We're not stopping here—we're continuing our journey to the moon, and we're looking for another talented professional to join our team.
 

Requirements:

• Bachelor's or Master's degree in Computer Science, Software Engineering, Information Systems, or a related field.
• At least 1 year of experience in ERP system development or support.
• Strong knowledge of BAS/BAF architecture and core principles.
• Experience with development and customization of modules and reports in BAS/BAF.
• Understanding of ERP system architecture, API integration principles, and Agile/DevOps methodologies.
• Experience in software development, testing, and maintenance.
• Hands-on experience with SQL/NoSQL databases.
• Strong SQL query writing skills.
   

Responsibilities:

• Customize and enhance documents, reports, and software modules.
• Provide technical support for onboarding new businesses into the accounting information environment.
• Develop SQL queries for data extraction and reporting.
• Prepare data for management and analytical reporting.
• Develop new functionality on the BAS/BAF platform.
• Integrate BAS/BAF with external services and APIs.
• Analyze, troubleshoot, and resolve system issues.
• Handle user requests and technical tasks.
• Maintain and improve customized configurations.
• Participate in designing and implementing new automation solutions.
   

What We Offer:

🌐Our HQ is in unshakable Kyiv, near the Zvirynetska metro station. We also have a cool EU office if you are relocated.
👨‍💻You will immediately have everything you need to work (the best equipment, subscriptions to the necessary services and everything that will make you effective).
⚡Hybrid work format.
With the hybrid format, Monday, Wednesday and Friday are in the office, and the rest of the days are your choice. Rest assured: in our workspace, even during blackouts, you will find stable WiFi, the same “electricity”, independent heating, a sports area, a shower and even a place to sleep!
🏖️We have 24 days of paid vacation. If you are a workaholic and did not use it, we will compensate you with money.
💊We pay sick leave in full.
🥗 corporate lunches to your own taste from GudFood.
👩‍🔬Mandatory health insurance.
🧘‍♀️Sessions with psychologists - we support mental health.
 

💡 How we have fun
A cool team is our main asset and a reason for pride. Your future colleagues love active recreation, competing for donations to the Armed Forces of Ukraine, sharing impressions of a movie or listening to their favorite music together. We often end the working week with a fun Friday mini-party with colleagues.

💡 People care
This is our principle in our internal corporate culture: we support each other, and the company helps the realization and professional growth of colleagues.
We care about the health of our colleagues and hold Health Days.

💡 Training and development
We regularly participate in top international fintech, e-commerce, crypto-conferences, meetings.
We pay for training (courses, trainings, seminars) for professional growth and development of the team.
We support learning English or other languages, especially for expansion into new markets!
 

Thank you for your interest in bill_line! We look forward to receiving your CV.

On behalf of our Client from France, Mobilunity is looking for an Android Engineer.

Our client is a table management software and CRM that enables restaurant owners to welcome their customers easily. The app is useful to manage booking requests and register new bookings. You can view all your bookings, day after day, wherever you are and optimize your restaurant’s occupation rate. Our client offers a commission-free booking solution that guarantees freedom above all. New technologies thus become the restaurateurs best allies for saving time and gaining customers while ensuring a direct relationship with them.

Requirements:

• 8+ years of experience building and shipping native Android applications using Kotlin
• Strong Kotlin expertise
• Experience with Jetpack Compose and solid knowledge of XML-based UI development
• Strong knowledge of Kotlin Coroutines and Flow
• Experience with dependency injection using Dagger 2
• Experience with multi-module architecture
• Strong understanding of MVVM and/or MVI architecture patterns
• Experience working with REST APIs
• Ability to work effectively with legacy codebases
• Experience with Gradle, including multi-flavor project configuration
• Strong product mindset with the ability to challenge existing implementations and collaborate with Product Managers
• Active daily use of AI development tools (Claude Code, Cursor, GitHub Copilot)
• Upper-intermediate to advanced English proficiency

Nice to have:

• Experience building and maintaining white-label mobile applications
• Experience with real-time communication using Socket.IO and/or WebSockets
• Familiarity with OAuth2, OIDC, and Keycloak
• Experience with feature flagging solutions (e.g. Unleash or similar)
• Experience integrating analytics platforms (e.g. Firebase, Amplitude)
• Experience with DataStore (Preferences/Proto), Room, and WorkManager for background synchronization
• Experience with Gradle dependency locking
• Experience with CI/CD pipelines
• Knowledge of the VIPER architecture pattern
• Familiarity with the Android release process, including Google Play Store and Firebase App Distribution

• Experience working on restaurant technology or other high-frequency, staff-facing consumer platforms

  English : B2-C1

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.

Join PwC's Advanced Technology Solutions team as an AI Architect with GCP (m/f) and work on cutting-edge AI, Generative AI, and cloud transformation projects for leading international clients. 

This role is suitable for experienced engineers and architects who want to design, build, and scale AI-powered solutions leveraging modern cloud technologies. You will define solution architectures, guide technical delivery, and collaborate with both business stakeholders and engineering teams to turn complex business challenges into secure, scalable, and production-ready AI solutions. 

We are looking for candidates who are strong in Google Cloud Platform (GCP), confident working with Generative AI technologies, and capable of translating business requirements into robust solution architectures while engaging directly with clients across Western Europe and the USA. 

At PwC, AI proficiency is a core capability for modern developers, helping deliver faster, higher-quality, and more innovative solutions. We use AI across software development, data engineering, cloud, automation, and analytics, with tools such as GitHub Copilot, Cursor, Claude Code, and our own ChatPwC. Through collaborations with leaders like Microsoft and OpenAI, we bring state-of-the-art AI into everyday work.

Key Responsibilities:

• Design and architect AI-powered solutions on Google Cloud Platform (GCP). 
• Define scalable architectures leveraging Vertex AI, Gemini, BigQuery, Cloud Run, GKE, API integrations, and other GCP services. 
• Design solutions using Generative AI, LLMs, RAG architectures, AI Agents, and Machine Learning technologies. 
• Design integrations between AI services, cloud platforms, enterprise systems, and data ecosystems. 
• Validate architectural decisions through proofs of concept (POCs), experimentation, and hands-on technical work where needed. 
• Drive the delivery of secure, scalable, and production-ready AI applications. 
• Collaborate with business stakeholders to understand requirements and translate them into scalable technical solutions. 
• Guide engineering teams through architecture decisions, technical design, and implementation best practices. 
• Actively leverage AI-powered development tools such as GitHub Copilot, Cursor, Claude Code, and ChatPwC to enhance productivity, improve solution quality, and accelerate delivery. 

What You Bring:

• 5+ years of experience in AI Engineering, Machine Learning, Solution Architecture, Cloud Engineering, or Software Engineering. 
• Strong experience with Google Cloud Platform (GCP). 
• Strong Python programming skills. 
• Experience with Generative AI, LLMs, RAG architectures, AI Agents, or Machine Learning solutions. 
• Understanding of cloud-native architectures, APIs, microservices, and distributed systems. 
• Experience working with data platforms, databases, and data pipelines. 
• Understanding of security, governance, and cloud architecture best practices. 
• Strong analytical and problem-solving skills. 
• Experience working directly with clients, stakeholders, and technical teams. 
• English B2+.

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