Jobs at Djinni

Join a Company That Invests in You

Seeking Alpha is the world’s leading community of engaged investors. We’re the go-to destination for investors looking for actionable stock market opinions, real-time market analysis, and unique financial insights. At the same time, we’re also dedicated to creating a workplace where our team thrives. We’re passionate about fostering a flexible, balanced environment with remote work options and an array of perks that make a real difference.

Here, your growth matters. We prioritize your development through ongoing learning and career advancement opportunities, helping you reach new milestones. Join Seeking Alpha to be part of a company that values your unique journey, supports your success, and champions both your personal well-being and professional goals.

What We're Looking For

Role Overview: You will take ownership of the search infrastructure for Ask Seeking Alpha — a financial intelligence platform powered by LLMs. Your main goal is to ensure our AI agents can find the exact financial data they need (articles, transcripts, news) in milliseconds. You will work on the Retrieval layer of our RAG architecture, combining traditional text search with modern vector search techniques.

Tech Stack: Elasticsearch (v8+), Python (FastAPI, Asyncio), OpenAI Embeddings, LangChain, LangSmith.

The Senior Search Engineer will be engaged with the company as a contractor (Private Entrepreneur).

What You'll Do

• Search Engine Development: Design and implement Hybrid Search strategies. You will figure out how to best combine "keyword matching" (finding specific tickers like 'AAPL') with "semantic search" (finding concepts like 'revenue growth').
• Relevance Tuning: You are responsible for the quality of search results. You will build systems to measure and improve how well the search engine answers user queries (using tools like LangSmith).
• Vector Search & RAG: Manage the integration of OpenAI embeddings into Elasticsearch. You will solve challenges related to indexing long documents (e.g., earnings transcripts) so the AI retrieves only the most relevant parts.
• Performance Optimization: Optimize Elasticsearch queries and index settings to ensure low latency, even for complex queries with many filters.
• Python Backend: Develop and maintain the Python services that build queries and process results. We use FastAPI and Asyncio heavily.

Requirements

• Elasticsearch Expert: 5+ years of experience working with Search Engines in production. You understand how indices, analyzers, and mappings work "under the hood."
• Search Theory: You understand the difference between Lexical Search (keywords) and Vector Search (meaning), and know when to use which.
• Python Proficiency: Strong experience with Python 3.10+. You are comfortable writing asynchronous code (async/await) and building APIs.
• Data Engineering: Experience designing data schemas for search (how to structure JSON documents for efficient retrieval).

Nice to Have

• Experience building RAG (Retrieval-Augmented Generation) pipelines.
• Familiarity with LangChain or similar LLM frameworks.
• Experience with Evaluation tools (like LangSmith) to test search quality automatically.
• Background in Finance (understanding tickers, earnings calls, etc.).

Join a Company That Invests in You

Seeking Alpha is the world’s leading community of engaged investors. We’re the go-to destination for investors looking for actionable stock market opinions, real-time market analysis, and unique financial insights. At the same time, we’re also dedicated to creating a workplace where our team thrives. We’re passionate about fostering a flexible, balanced environment with remote work options and an array of perks that make a real difference.

Here, your growth matters. We prioritize your development through ongoing learning and career advancement opportunities, helping you reach new milestones. Join Seeking Alpha to be part of a company that values your unique journey, supports your success, and champions both your personal well-being and professional goals.

What We're Looking For

Role Overview: We are developing Ask Seeking Alpha — a high-load financial analysis system based on Large Language Models. The architecture is built on complex multi-agent orchestration using LangGraph, FastAPI, and Elasticsearch.

We are looking for a Senior Backend Engineer specialized in Generative AI to design agent workflows, optimize interactions with models (OpenAI, AWS Bedrock), and ensure the reliability of non-deterministic systems in production.

The Senior Python AI Engineer will be engaged with the company as a contractor (Private Entrepreneur).

Tech Stack: Python (Asyncio), FastAPI, LangChain, LangGraph, Pydantic, Elasticsearch, AWS Bedrock / OpenAI API, LangSmith.

What You'll Do

• Agent Architecture: Design and implement complex agent orchestration logic using LangGraph. You will define state management, conditional routing, and error handling within the agent graph.
• Tool Engineering: Build and optimize the tool layer (function calling) that allows LLMs to interact with internal financial APIs and databases accurately.
• Performance Optimization:

-Reduce end-to-end latency through asynchronous processing and streaming (SSE).

-Implement semantic caching strategies to minimize API costs and response time.

-Optimize token usage without sacrificing answer quality.

• Observability & Evaluation: Implement automated evaluation pipelines using LangSmith. You will be responsible for setting up regression testing for prompts and agents to measure quality (correctness, faithfulness) before deployment.
• Advanced RAG: Refine retrieval strategies. Work on hybrid search implementation (Keyword + Vector), re-ranking, and query expansion to feed the most relevant context to the model.

Requirements

• Python Expert: Strong proficiency in modern Python. Deep understanding of asynchronous programming (asyncio) patterns is mandatory, as our entire I/O pipeline (Network, DB, LLM) is non-blocking. Experience with FastAPI and Pydantic (v2).
• Agentic Frameworks: Production experience with LangChain. Hands-on experience or deep conceptual understanding of LangGraph (or similar state-machine-based agent frameworks).

Deep LLM Expertise (What we mean by "Deep"):

• Non-determinism Management: Strategies for handling LLM hallucinations and ensuring reliable outputs (e.g., self-correction loops, specific prompting techniques like CoT/ReAct).
• Structured Outputs: Experience forcing LLMs to adhere to strict schemas (Pydantic/JSON mode) for reliable downstream processing.
• Context Optimization: Advanced strategies for managing limited context windows (summarization chains, sliding windows, selective context injection) beyond simple truncation.
• Inference Economics: Understanding the trade-offs between model size, latency, and cost (e.g., when to route to GPT-4 vs. a smaller/faster model).

Nice to Have

• Experience with Elasticsearch (DSL queries, analyzers).
• Knowledge of vector databases and embedding models.
• Background in FinTech or familiarity with financial data structures.

What We're Looking For

Seeking Alpha is looking for a Senior Data Engineer responsible for designing, building, and maintaining the infrastructure necessary for analyzing large data sets. This individual should be an expert in data management, ETL (extract, transform, load) processes, and data warehousing and should have experience working with various big data technologies, such as Hadoop, Spark, and NoSQL databases. In addition to technical skills, a Senior Data Engineer should have strong communication and collaboration abilities, as they will be working closely with other members of the data and analytics team, as well as other stakeholders, to identify and prioritize data engineering projects and to ensure that the data infrastructure is aligned with the overall business goals and objectives.

The Senior Data Engineer will be engaged with the company as a contractor (Private Entrepreneur).

What You'll Do

• Work closely with data scientists/analytics and other stakeholders to identify and prioritize data engineering projects and to ensure that the data infrastructure is aligned with business goals and objectives
• Design, build and maintain optimal data pipeline architecture for extraction, transformation, and loading of data from a wide variety of data sources, including external APIs, data streams, and data stores. 
• Continuously monitor and optimize the performance and reliability of the data infrastructure, and identify and implement solutions to improve scalability, efficiency, and security
• Stay up-to-date with the latest trends and developments in the field of data engineering, and leverage this knowledge to identify opportunities for improvement and innovation within the organization
• Solve challenging problems in a fast-paced and evolving environment while maintaining uncompromising quality.
• Implement data privacy and security requirements to ensure solutions comply with security standards and frameworks.
• Enhance the team's dev-ops capabilities.

Requirements

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field
• 2+ years of proven experience developing large-scale software using an object-oriented or functional language.
• 5+ years of professional experience in data engineering, focusing on building and maintaining data pipelines and data warehouses
• Strong experience with Spark, Scala, and Python, including the ability to write high-performance, maintainable code
• Experience with AWS services, including EC2, S3, Athena, Kinesis/Firehose Lambda and EMR
• Familiarity with data warehousing concepts and technologies, such as columnar storage, data lakes, and SQL
• Experience with data pipeline orchestration and scheduling using tools such as Airflow
• Strong problem-solving skills and the ability to work independently as well as part of a team
• High-level English - a must. 
• A team player with excellent collaboration skills.

Nice to Have:

• Expertise with Vertica or Redshift, including experience with query optimization and performance tuning
• Experience with machine learning and/or data science projects
• Knowledge of data governance and security best practices, including data privacy regulations such as GDPR and CCPA.
• Knowledge of Spark internals (tuning, query optimization)

Join a Company That Invests in You

Seeking Alpha is the world’s leading community of engaged investors. We’re the go-to destination for investors looking for actionable stock market opinions, real-time market analysis, and unique financial insights. At the same time, we’re also dedicated to creating a workplace where our team thrives. We’re passionate about fostering a flexible, balanced environment with remote work options and an array of perks that make a real difference.

Here, your growth matters. We prioritize your development through ongoing learning and career advancement opportunities, helping you reach new milestones. Join Seeking Alpha to be part of a company that values your unique journey, supports your success, and champions both your personal well-being and professional goals.

About the Role

We’re seeking a  Business Analyst/Product Manager to ensure flawless delivery of features to our customers. You’ll work hands-on with development teams to execute the product roadmap defined by our CPO, maintain high quality standards, track team performance metrics, and ensure releases happen on schedule without delays.

This is an execution-focused role. You’ll translate business requirements into technical specifications, manage the delivery process, minimize bugs and incidents, and ensure our customers receive high-quality features on time.

Role Type: Business Analyst (Execution & Delivery focused)

Time Allocation:

Feature Delivery (50% of your time) 

• Manage product backlog for development teams, ensuring 2+ sprints are always groomed 
• Write detailed user stories with clear acceptance criteria and edge cases 
• Conduct bi-weekly sprint planning and weekly backlog refinement sessions 
• Ensure 95%+ of releases ship on scheduled dates - no delays, no excuses 

• Remove blockers proactively to keep teams on track 

   

Technical Documentation (20%) 

• Prepare Business Requirements Documents (BRD) outlining business objectives and scope 
• Write comprehensive Product Requirements Documents (PRD) including:  
• Functional specifications and user flows 
• API specs, data models, integration requirements 
• Technical constraints and performance considerations 
• Acceptance criteria and test scenarios 

• Maintain clear documentation in Confluence for engineering and stakeholders 

   

Quality & Incident Management (15%) 

• Drive bug reduction initiatives - target <3% bug escape rate 
• Manage P0/P1 incidents: triage within 30 minutes, resolve within 4 hours 
• Document post-mortems with root cause analysis and preventive actions 
• Track quality metrics: bug rates, regression issues, technical debt 

• Collaborate with QA on test coverage and automation priorities 

   

Metrics & Reporting (15%) 

• Track team performance: velocity, cycle time, lead time, commitment accuracy 
• Build dashboards in Jira showing real-time delivery health 
• Present quarterly metrics to CPO showing delivery trends and quality improvements 
• Coordinate with stakeholders: Customer Success (weekly), Sales (bi-weekly), Support (weekly) 

Report To: Chief Product Officer (CPO)
Location: Remote (Europe/US time zones preferred for team overlap)

Must-Have Qualifications

• Experience 3-5+ years as Business Analyst  or Product Manager in B2B SaaS, cloud software, or CRM solutions
• Proven track record of on-time delivery: Be ready to share specific metrics (e.g., “Achieved 95% on-time release rate over 12 months”)
• BRD/PRD writing experience: At least 2 years writing technical specifications for engineering teams
• Agile/Scrum mastery: 3+ years managing backlogs, writing user stories, leading sprint ceremonies
• Quality focus: Experience reducing bug rates and managing incident response

• Technical proficiency: Understanding of APIs, cloud platforms, CRM integrations, data models

   

Skills

• Execution Excellence: Ability to drive features to completion on schedule, removing blockers proactively
• Technical Documentation: Strong writing skills for BRD/PRD with clarity and detail
• Analytical: Can track and present team performance metrics (velocity, cycle time, bug rates)
• Quality Mindset: Obsessed with reducing bugs, improving processes, preventing incidents
• Communication: Fluent English (C1/C2), able to explain requirements to technical and non-technical audiences
• Prioritization: Can make quick trade-off decisions to keep releases on track

• Incident Management: Experience triaging and coordinating response to production issues

   

Tools Proficiency

• Jira/Linear: Advanced backlog management, sprint planning, reporting
• Confluence: Documentation, BRD/PRD templates, knowledge management
• Analytics: Mixpanel, Amplitude, Google Analytics for feature tracking

• Design: Figma collaboration for UI/UX specifications

   

   

Mindset

• Delivery-focused: Obsessed with hitting release dates and shipping quality features
• Detail-oriented: Catches edge cases, writes comprehensive acceptance criteria
• Proactive problem-solver: Removes blockers before they impact timelines
• Quality-driven: Won’t ship until it’s right, balances speed with quality
• Team player: Supports engineering, collaborates with cross-functional teams
• Customer-centric: Understands impact of delays and bugs on customer experience

🌟 Nice-to-Have (Bonus Qualifications)

Experience

• 3-5+ years product ownership experience (for Senior-level consideration)
• Previous experience in CRM industry (Salesforce, HubSpot, Pipedrive ecosystem)
• Background as Business Analyst, Solutions Engineer, or QA Lead (strong documentation skills)
• Experience with DevOps practices (CI/CD, release automation, monitoring)
• Incident management training (ITIL, SRE practices)

• Experience managing API products or developer-facing features

   

Skills & Knowledge

• SQL proficiency: Can write queries to analyze feature usage and performance
• Scripting/automation: Python, JavaScript for data analysis or tooling
• Advanced Jira: Custom workflows, automation rules, dashboard creation
• API documentation: Swagger/OpenAPI specification writing

• Performance testing: Understanding of load testing and scalability considerations

   

Why Join Proxima CRM?

Execution Impact: Your work directly affects customers. Every feature you deliver improves their workflow and business outcomes.

Quality Culture: We value doing it right over doing it fast (but we do both). You’ll have support to maintain high standards.

Modern Processes: We use best practices in Agile, documentation, and incident management. You’ll work with experienced teams.

Growth: Early product ownership hires have opportunities to take on more scope, mentor others, and grow into leadership roles.

Flexibility: True remote-first. Work from anywhere with flexible hours and async-first culture.

Proxima CRM is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

We are looking for an experienced Full Stack  to design and build scalable cloud-native applications while leading engineering teams and driving technical decisions.

Requirements

• 7+ years of software engineering experience.
• Candidates should currently reside in Europe or be willing and able to relocate to Europe.
• Strong expertise in Python (FastAPI).
• Solid experience with ReactJS and TypeScript.
• Hands-on experience with AWS, Docker, and Kubernetes.
• Strong understanding of microservices, distributed systems, REST/GraphQL APIs, and CI/CD.
• Experience with SQL/NoSQL databases and asynchronous processing (Celery or similar).
• Experience mentoring engineers and leading technical initiatives.
• Good verbal and writing English language communication skills.

Nice to Have

• AI/LLM integration experience.
• Kafka, SNS/SQS, Redis, RabbitMQ.
• Terraform or CloudFormation.
• Domain-Driven Design (DDD) and Clean Architecture.

We're building simulation-ready 3D environments for robotics training. We have a large library of lidar-captured residential interiors, and we're converting them into environments that robot policies can actually navigate — watertight geometry, real collision meshes, semantic labels, USD export.
 

You'd be the first hire on this. First project is five scenes, end to end, by hand. What we learn from those becomes the pipeline.

Must have:
• Blender or Maya at production level — retopo, mesh repair, UV
• Python scripting. Every tool in this stack is driven through it
• Hands-on with at least one physics simulator: Isaac Sim, MuJoCo, Unity/Unreal physics, or PyBullet
• You understand the difference between a visual mesh and a collision mesh, and can explain convex decomposition without looking it up

Nice to have: USD/OpenUSD, Isaac Sim or Omniverse specifically, experience cleaning up scanned data (photogrammetry, point clouds, 3D scan)

Not required: ML or robotics theory. You're building environments, not training policies.

What a finished scene looks like:
• Visual mesh — watertight, ceilings closed, holes patched, real-world scale, Z-up, floor at origin
• Collision mesh — separate from visual, convex-decomposed
• Semantic labels — floor, wall, ceiling, door, window, stair, furniture
• USD primary, glTF secondary
• Loads in Isaac Sim and MuJoCo, and a simple agent can walk room to room without falling through anything

Screening: a paid test task. We send you one raw scan; you produce a watertight collision mesh that loads in MuJoCo and holds a falling capsule on the floor instead of letting it pass through. Half a day of work, paid at your rate. 

----------------------------------------------------------------------

Ми створюємо 3D-середовища, готові до симуляцій, для навчання робототехніки. У нас є велика бібліотека житлових інтер'єрів, відзнятих за допомогою LiDAR, і ми перетворюємо їх на середовища, в яких алгоритми роботів (robot policies) зможуть реально орієнтуватися — замкнута геометрія (watertight geometry), справжні колізійні меші (collision meshes), семантичні мітки (semantic labels), експорт у формат USD.

Ви будете першим найнятим спеціалістом на цьому напрямку. Перший проєкт — п'ять сцен, від початку до кінця (end-to-end), повністю вручну. Те, чого ми навчимося під час їх створення, стане основою нашого пайплайну.

Обов'язкові вимоги:

• Blender або Maya на рівні продакшену — ретопологія (retopo), виправлення мешів, розгортка (UV).
• Написання скриптів на Python. Кожен інструмент у цьому стеку керується через нього.
• Практичний досвід роботи щонайменше з одним фізичним симулятором: Isaac Sim, MuJoCo, Unity/Unreal physics або PyBullet.
• Ви розумієте різницю між візуальним (visual) та колізійним (collision) мешем і можете пояснити, що таке опукла декомпозиція (convex decomposition), не гуглячи цього.

Буде плюсом: Досвід роботи з USD/OpenUSD, конкретно з Isaac Sim або Omniverse, досвід очищення відсканованих даних (фотограмметрія, хмари точок / point clouds, Matterport).

Не вимагається: Знання ML або теорії робототехніки. Ви створюєте середовища, а не тренуєте політики.

Як виглядає готова сцена:

• Візуальний меш — замкнута геометрія (watertight), закриті стелі, залатані дірки, реальний масштаб (real-world scale), вісь Z вгору (Z-up), підлога на рівні початку координат (origin).
• Колізійний меш — окремий від візуального, розділений за допомогою опуклої декомпозиції (convex-decomposed).
• Семантичні мітки — підлога, стіна, стеля, двері, вікно, сходи, меблі.
• Формати — основний USD, додатковий glTF.
• Сцена успішно завантажується в Isaac Sim та MuJoCo, а простий агент може переходити з кімнати в кімнату, не провалюючись крізь поверхні.

Відбір: Оплачуване тестове завдання. Ми надсилаємо вам один необроблений скан (raw scan); ви маєте зробити замкнутий колізійний меш, який завантажується в MuJoCo і утримує падаючу капсулу на підлозі, не даючи їй провалитися наскрізь. Це робота на пів дня, яка оплачується за вашим рейтом (hourly rate).

Hey there,

We're on the lookout for a Project Manager to join our design studio as we're growing and expanding. We need someone who's responsible, analytical, and knows how to connect with people. Plus, you'll be part of a friendly and creative team – so it's not your typical 9-to-5 gig.

Here's what we're looking for:

- Strong English skills, at an Advanced (C1) level.

- Good at talking to people and leading them.

- You've got some serious analytical chops.

- Quick decision-making

- Organization and attention to detail are your middle names.

And here's what you'll be up to:

- Chatting with clients, managing their expectations, and keeping them happy.

- Planning and overseeing projects from start to finish.

- Making sure designers stay on track, meet deadlines, and manage their time wisely.

- Creating a clear line of communication among everyone involved.

- Resolving any hiccups that come up within the team or with clients.

- Showing off your brilliant solutions, demo versions, and prototypes to clients.

- Dealing with paperwork and reports.

Here's the lowdown on the job:

- You'll be working with clients from all around the world.

- It's a full-time remote gig (so you can work in your PJs if you want).

- We roll from 10 AM to 6 PM, five days a week.

- And don't worry, we've got training and development opportunities lined up.

Sound good? Drop us a line if you're up for it!

United Tech is a global IT product company shaping the future of real-time social connection. With millions of users across North America, Europe, LATAM, and MENA, we build next-gen mobile and web apps for live-streaming and social networking. Our platforms enable connection at scale fast, interactive, and deeply engaging. The market is projected to exceed $206B by 2030, and we are already leading the evolution. Founded in Ukraine, scaling worldwide.

About the role: We are looking for a Manual QA Engineer to ensure high product quality across our web application, internal CRM, email campaigns, and push notifications.

This is a high-impact role in a product that is actively scaling, where QA is involved not only in testing, but also in product decision-making. You will work closely with product managers and developers, influence feature quality, and contribute to improving testing processes.

In this role, you will

• Analyze requirements and create test cases for new features.
• Test the internal CRM system.
• Test email campaigns and push notifications.
• Perform manual testing of the web application, including functional, regression, UI/UX, and smoke testing.
• Verify APIs using Postman/Swagger (basic positive and negative scenarios).
• Work with DevTools, including log analysis, network requests, and console errors.
• Assess testing risks and participate in task planning.
• Create clear and well-structured bug reports with reproduction steps, prioritization, and context.
• Contribute to improving testing processes and documentation.

It’s all about you

• 2+ years of experience in manual QA (web), including experience testing CRM systems and email campaigns.
• Understanding of SDLC/STLC, types of testing, and test design techniques.
• Experience with Postman or similar tools for API testing.
• Experience writing test cases and bug reports in any TMS/Jira.
• Experience working with databases such as MongoDB / BigQuery / DataGrip.
• Basic knowledge of Git (pull, checkout, code review), CI/CD tools (GitLab).
• Experience working with logs in Lens/Grafana, debugging tools (Charles, Fiddler).

Would be a plus

• Experience with Automation skills.
• Experience automating small routine tasks, such as generating data, writing database queries, and creating mock data.

What we offer

Care and support: 

• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• Up to 10 additional days off for public holidays
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine
   

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule 
• Modern equipment or depreciation of your own tools
   

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events
   

Hiring process

• Intro call
• Technical Interview
• Final Interview
• Reference check
• Offer

Role overview: 

The Operations Specialist serves as a strategic partner to executive leadership by managing high-priority projects and coordinating cross-functional initiatives. This role is ideal for a highly organized, proactive professional who thrives in a fast-paced environment, anticipates needs before they arise, and excels at keeping multiple priorities moving forward. 
 
Success in this position requires exceptional project management skills, strong business judgment, outstanding communication abilities, and the ability to build relationships across all levels of the organization. The individual must be comfortable handling confidential information, managing competing priorities, and driving accountability to ensure organizational goals are achieved. 

Important Note: Candidates must demonstrate prior knowledge of CUCollaborate’s platform, tools, and services, and are expected to research and familiarize themselves with the organization before applying. 

Responsibilities: 

-Project Management 

• Lead and coordinate strategic projects from initiation through completion. 
• Develop project plans, timelines, milestones, and deliverables. 
• Monitor project progress and proactively identify risks, dependencies, and roadblocks. 
• Coordinate cross-functional teams to ensure projects remain on schedule. 
• Track action items and hold stakeholders accountable for deliverables. 
• Prepare executive updates, dashboards, and project status reports. 
• Recommend process improvements that increase organizational efficiency. 
• Manage confidential projects and sensitive information with discretion. 
• Support organizational planning, goal tracking, and operational initiatives. 
• Assist with implementation of new processes, systems, and organizational changes. 

-Administrative & Operational Support 

• Maintain organized documentation, files, and project records. 
• Coordinate contracts, invoices, vendor communications, and administrative workflows as needed. 
• Research information and prepare analyses to support executive decision-making. 
• Identify opportunities to improve administrative and operational processes. 

Requirements: 

• Bachelor's degree in Business Administration, Project Management, Communications, or related field (or equivalent experience). 
• 3+ years of project management experience. 
• Demonstrated experience managing multiple complex projects simultaneously. 
• Exceptional organizational and time management skills. 
• Outstanding written and verbal communication skills. 
• Strong proficiency with Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) and Microsoft Teams. 
• Ability to handle confidential information with the highest level of professionalism. 

• Excellent judgment, discretion, and problem-solving abilities. 

   

Key Competencies:

• Exceptional organizational skills 
• Project planning and execution 
• Strategic thinking 
• Initiative and ownership 
• Relationship building 
• Communication and diplomacy 
• Attention to detail 
• Adaptability 
• Critical thinking 
• Sound judgment 
• Confidentiality 
• Accountability 
• Ability to prioritize under pressure 

We offer: 

• Competitive salary 
• Remote / hybrid work 
• Medical insurance and mental health coverage 
• Paid vacation, sick leave, and public holidays 
• English lessons at company's expense 
• Training & development budget 
• Teambuildings and a motivated team 

Smartist seeks a talented and motivated Middle iOS developer to join our team and help build and maintain our mobile app. As a Middle iOS developer at Smartist, you will work closely with our senior engineers and product team to develop and deliver high-quality code.

In this role, you will:

• Develop and maintain iOS apps using Swift and the iOS SDK

• Collaborate with marketing, design, and ship new features

• Help maintain code quality, organization, and automation

• Participate in code and design reviews

To be successful in this role, you will need the following:

• At least 2 years of experience developing iOS apps using Swift and the iOS SDK

• Working with UIKit, Core Graphics, Autolayout, GCD

• Experience with Git and version control systems

• Experience with agile development methodologies

• Experience with Alamofire or URLSession

• Hands-on experience with Core Data or Realm

• Strong problem-solving and communication skills

Will be a plus:

• Experience with SpriteKit or SceneKit

• Experience with Core Animation

• Experience with Analytics

• Familiarity with: AWS S3, CloudKit

We are a fast-paced and dynamic company, so we are looking for someone adaptable and eager to learn. If you are a team player with a passion for mobile development, we want to hear from you! Please include a resume and any relevant work samples when applying for this position.

Level: Senior (individual contributor)· 

Focus: Full-stack hardware + flight stack integration (ArduPilot / Betaflight) 

Location: On-site (lab / hangar)

About the role

We're looking for an experienced hardware engineer to own end-to-end flight-control hardware integration across a diverse fleet of drones — from FPV quads to larger autonomous multirotor, fixed-wing, and VTOL platforms. You'll be the person who takes a new airframe from a pile of components to a tuned, flight-ready system: selecting and wiring the flight controller, flashing and configuring ArduPilot or Betaflight, integrating ESCs, sensors, radios, power, and payloads, and tuning it until it flies cleanly.

This is a hands-on, on-site role based in our lab/hangar, spanning the full range from quick R&D prototypes to repeatable production builds. You'll be the hardware integration expert for the team, working independently and setting the standard for how builds are configured, documented, and validated. Success looks like new platforms reaching reliable, flight-ready status quickly — and builds that stay consistent and reproducible from one unit to the next.

What you'll do

• Own end-to-end hardware integration of flight-control systems across multiple platform types (multirotor, fixed-wing, VTOL, FPV).
• Select, flash, configure, and tune ArduPilot (Copter / Plane / Rover) and Betaflight; build and maintain custom firmware targets and board definitions where needed.
• Integrate and validate flight controllers, ESCs, and motors — including protocol setup (DShot / bidirectional DShot, PWM / OneShot), motor–prop matching, and thrust testing.
• Bring up and calibrate full sensor suites: IMUs, barometers, compasses/magnetometers, GPS/RTK, rangefinders, optical flow, and airspeed sensors.
• Integrate RC and telemetry links (ExpressLRS, TBS Crossfire, CRSF / SBUS, MAVLink, SiK radios) and FPV/video systems (analog and digital VTX, OSD, cameras, antennas).
• Spec, assemble, and wire power systems — distribution, regulation, current/voltage sensing, and battery selection — with clean, reliable harnesses.
• Integrate smart peripherals over CAN / DroneCAN and companion computers (Raspberry Pi / Jetson) over MAVLink.
• Diagnose vibration, noise, and EMI issues and implement fixes (soft-mounting, gyro/notch filtering, grounding, shielding).
• Run bench, ground, and flight tests; analyze logs (Mission Planner / MAVExplorer, Betaflight Blackbox) and iterate on PID and filter tuning.
• Root-cause failures and design for reliability — diagnose in-flight and bench anomalies, build in redundancy where it matters, and harden platforms to hold up in real-world field conditions.
• Take platforms from quick R&D prototypes through to repeatable, well-documented production builds — locking in configurations and processes that stay consistent across units.
• Document build configurations, wiring, and setup procedures, and support/upskill the team so they can operate and iterate independently.

• Work closely with the software, mechanical, and flight-test teams to integrate cleanly and resolve hardware–software issues together.

   

What we're looking for

• Hands-on experience integrating and configuring ArduPilot and/or Betaflight on real hardware.
• Strong working knowledge of drone subsystems: flight controllers, ESCs, motors, sensors, RC links, power, and FPV.
• Comfortable with soldering, wiring, and general benchtop debugging (multimeter, bench power supply).
• Solid grasp of the relevant protocols: DShot, CRSF / SBUS, MAVLink, I2C / SPI / UART, and ideally CAN / DroneCAN.
• Experience tuning multirotor and/or fixed-wing platforms and reading flight logs to track down problems.
• Able to work independently and own a hardware domain from first component to flight-ready system.
• Comfortable switching between fast prototype iteration and the repeatability that production builds demand.
• Typically 4+ years in drone/UAV hardware, robotics, or embedded systems.

• Degree in electrical, aerospace, mechatronics, or robotics engineering — or equivalent hands-on experience.

   

Nice to have

• Writing custom ArduPilot board definitions (hwdef) or Betaflight targets, and compiling firmware from source.
• Familiarity with PCB design (KiCad / Altium) is a welcome bonus — but we treat full board design as a separate specialty, so it's not expected for this role.
• RTK GPS and precision navigation, lidar, or computer-vision payload integration.
• Breadth across airframe types — VTOL, large industrial, or agricultural platforms.
• Familiarity with the drone and aviation regulations that apply in the role's region.
• Comfortable with 3D printing and rapid prototyping for custom mounts, frames, and fixtures.

Tools & technologies you'll work with

• Firmware / stacks: ArduPilot, Betaflight
• Flight controllers: Pixhawk / Cube, Holybro, Matek, SpeedyBee, Kakute (STM32 F4 / F7 / H7)
• Ground stations: Mission Planner, QGroundControl, Betaflight Configurator
• Protocols: MAVLink, DShot, CRSF, SBUS, DroneCAN / CAN, I2C / SPI / UART
• RC / telemetry: ExpressLRS, TBS Crossfire, SiK radios
• ESC firmware: common ESC firmware and configuration tools
• Bench: Soldering station, multimeter, bench power supply

What we offer

• Competitive salary, set to experience
• A fully equipped lab and a budget for the gear, tools, and parts you need
• Health coverage, paid time off, and the standard benefits
• Room to grow your skills and shape how the team builds

Full compensation details are shared early in the process.

About us

We design and build drones across a range of platforms and applications, and we care about getting the hardware right. You'd be joining a hands-on team that puts real aircraft in the air and values engineers who can own their work from the bench to the flight line.

How to apply

To apply, send your resume along with anything that shows your work — builds you've integrated, logs or tuning you're proud of, repos, or flight videos. We'd love to see what you've put in the air.

VitaUp is building a category-leading supplements brand across Amazon US & EU.

We compete in one of the most complex and competitive categories on Amazon — health & wellness — alongside brands like NOW, Pure Encapsulations, and Nature Made. We already have proven products, strong unit economics, and an established operational foundation. Our next stage is aggressive scaling.

We are looking for a Head of Amazon Growth — a commercially-minded operator, strategist, and leader who understands how to scale Amazon businesses in highly competitive supplement categories.

This role is closer to running a business unit than managing a marketplace account.

You will own Amazon growth end-to-end: category strategy, product launches, profitability, team leadership, operational scalability, and performance execution across US & EU marketplaces.

We are not looking for a coordinator or task manager. We are looking for someone who thinks like an owner, moves fast, understands the numbers behind growth, and knows how to build scalable systems and high-performing teams.

What You Will Own

You will be fully accountable for Amazon business performance:

• revenue growth
• profitability
• launch performance
• operational scalability
• market expansion

• category positioning

   

You will define how products compete, scale, and win within the health & supplements category.

Your responsibilities will include:

• Building and executing Amazon growth strategy across US & EU marketplaces
• Leading end-to-end product launches from market opportunity analysis to post-launch scaling
• Driving performance through data, experimentation, and operational excellence
• Owning P&L decisions and balancing aggressive growth with profitability
• Identifying new growth levers, category opportunities, and expansion potential
• Building scalable processes and operational infrastructure for long-term growth
• Managing forecasting, inventory planning, and supply coordination around growth cycles
• Leading and scaling a cross-functional Amazon team across PPC, design, content, analytics, influencer and affiliate functions
• Creating accountability systems, workflows, and performance standards across the team
• Working directly with founders on strategic growth decisions and long-term scaling initiatives

What We Are Looking For

Proven Amazon Scaling Experience

- You have 5+ years of hands-on Amazon experience with a strong track record of scaling brands or product portfolios.

- You have personally driven products from launch to significant monthly revenue and can clearly explain:

• what you scaled
• how you scaled it
• which levers created growth

• what challenges you solved

   

We are looking for operators, not coordinators.

Supplements / Health Category Expertise

You deeply understand:

• dietary supplements
• wellness products
• customer psychology in health categories
• competitive dynamics

• compliance-sensitive product positioning

   

Experience in supplements, nutraceuticals, wellness, sports nutrition, or adjacent regulated categories is highly preferred.

Strong Commercial & Analytical Thinking

You think like a business owner. You understand:

• profitability
• contribution margin
• TACOS / ACOS
• LTV
• inventory economics
• ranking mechanics
• conversion optimization
• launch velocity

• category strategy

   

You make decisions based on data, not assumptions.

Leadership & Team Management

• You have experience leading and developing cross-functional teams in fast-scaling environments.

• Ideally, you have managed teams of 10+ people across multiple business functions while remaining hands-on and operationally involved.

   

Ownership Mentality

• You are highly autonomous and proactive.
• You do not wait for instructions.
  You identify problems early, make decisions quickly, and create structure where needed.
• You are comfortable operating in high-growth environments where priorities evolve fast.

Compliance & Marketplace Understanding

You understand Amazon policies and the complexity of operating in regulated health categories.

Knowledge of:

• FDA/FTC compliance
• Amazon content policies
• supplement claims

• account health & compliance risks
  is a strong plus.

   

Tools & Platforms 

You are comfortable working with:

• Seller Central
• Brand Analytics
• Helium10
• DataDive
• Sellerboard
• Amazon PPC ecosystems

• analytics and forecasting tools

   

What We Offer

• A key leadership role with direct influence on company growth and expansion strategy
• Full ownership over Amazon US & EU performance
• The opportunity to build and scale a high-growth supplement brand in a highly competitive category
• Direct collaboration with founders and visibility into strategic business decisions
• Freedom to build systems, processes, and scalable growth infrastructure
• Strong existing operational foundation and proven products already performing on the market
• Remote-first work environment with flexibility and high autonomy
• Competitive USD-based compensation with performance-driven upside

If you think like an owner, operate with data, and know how to scale Amazon brands in competitive health categories — we would love to speak with you.

Please send your CV along with examples of brands, listings, or Amazon businesses you have helped scale.

We are looking for a Game Designer / 2D Artist on behalf of our client — an Israeli game development company creating hyper-casual mobile and casino-style games.

The company develops and tests multiple game concepts with a strong focus on speed, visual quality, player engagement, retention, and scalability. The technical side of development is already covered, and the team is now looking for a creative specialist who can take ownership of game visuals, animation, and overall visual polish.

Current projects include a Flappy Bird–style mobile game and a multiplayer Bingo game, with additional concepts planned for development and testing.

The ideal candidate is someone who can work quickly, turn rough concepts and AI-generated assets into polished game visuals, and maintain a consistent visual style across multiple projects.

Responsibilities

- Create high-quality 2D game assets, characters, environments, icons, UI elements, and visual effects

- Create animations for characters, gameplay elements, interfaces, and transitions

- Turn concepts, sketches, references, and AI-generated assets into polished production-ready visuals

- Define and maintain a consistent visual style across different games

- Collaborate directly with the founder and developer on new game concepts

- Rapidly produce visual assets for prototypes, testing, and game releases

- Improve the overall visual quality, game feel, and player experience

- Prepare and optimize assets for mobile game development

- Adapt visuals based on player feedback, analytics, and testing results

Requirements

- Experience creating visuals for hyper-casual, casual mobile, casino, Bingo, or slot games

- Strong 2D art and animation skills

- Portfolio demonstrating relevant game artwork and animation

- Experience creating UI and visual elements for mobile games

- Ability to work quickly and manage several creative tasks at the same time

- Strong understanding of composition, color, visual hierarchy, and game feel

- Ability to transform unfinished or AI-generated assets into consistent, professional visuals

- Comfortable working independently and taking ownership of the creative process

- Proactive and able to suggest visual improvements

- English sufficient for regular communication with the client

Nice to Have

- Experience with Spine

- Experience with Adobe After Effects, Adobe Animate, or similar animation tools

- Experience working with Unity

- Experience using Photoshop, Illustrator, Figma, or similar design tools

- Experience at a mobile gaming, casino, or slot game company

- Experience working on published games available on the App Store or Google Play

- Familiarity with AI-assisted design tools and workflows

- Experience with rapid game prototyping

Antenna / RF Front-End Engineer (Contract)

About the Role

You'll design the antenna and RF front-end at the heart of a counter-UAV radar sensor — radiating elements, arrays, and feed networks — taking them from concept through EM simulation to measured validation. This is a contract engagement, so you'll need to work independently and contribute quickly. We care most about breadth across antenna design methods on a master's-level foundation; senior experience is a strong plus. You'll have access to high-end measurement facilities — including anechoic-chamber time in Kyiv (paid travel) — to characterize and iterate on real hardware, not just simulate. This is a key role to ensure our first launch cements our reputation in the industry  - make your mark with Valkyrie!

What You'll Do

• Design and optimize antenna elements and arrays — single-element and phased-array — for mmWave operation
• Evaluate tradeoffs across frequency bands and packaging: select the band and topology that best balance range, resolution, aperture size, and environmental performance for a given sensing requirement
• Design corporate-fed and series-fed feed networks for phased-array and MIMO systems, controlling amplitude/phase distribution to hit beamforming, sidelobe, and radiation-pattern targets
• Prototype and compare integration approaches — substrate-integrated waveguide (SIW), launch-in-package, and alternatives — to find the best fit for compact integration
• Model and optimize performance — gain, beamwidth, sidelobe level, VSWR/S11, mutual coupling, scan range, grating-lobe behavior — against sensing requirements
• Design MIMO arrays for multi-channel sensing: element spacing, channel isolation, and virtual-aperture formation for angular resolution
• Validate designs on the bench (VNA, anechoic/OTA range), correlating measured results against simulation and documenting deviations
• Work directly with the DSP and radar-systems engineers we're hiring in parallel — antenna, signal processing, and architecture designed together, not in isolation. You'll have real influence over the system design, not just your own slice
• Design to the RF front-end architecture — channel count, transceiver interface, phase coherence — and feed antenna feasibility back as the system evolves
• Prepare finished antenna and feed-network designs for handoff: specify antenna-critical constraints and review layout through bring-up

Required Qualifications 

• Master's in Electrical Engineering, Microwave/RF Engineering, or a closely related field — or equivalent hands-on antenna design experience with the skills below. PhD a plus
• Prior work on radar or RF sensing systems, not communications-only antenna work
• Hands-on experience across multiple antenna design methodologies: SIW, launch-in-package, phased arrays, MIMO systems, series-fed and corporate-fed networks. Breadth here matters more to us than years
• Strong feed-network fundamentals: power dividers, phase shifters, impedance matching, loss/isolation and beam-squint tradeoffs
• MATLAB/Simulink for array-factor synthesis, pattern analysis, and beamforming/system-level modeling (e.g. Antenna and Phased Array System Toolboxes)
• A track record of carrying designs from concept through simulation, prototyping, and measurement validation — not simulation alone.
• Proficiency with EM simulation software (HFSS, CST Microwave Studio, or equivalent)

Preferred / Bonus

• Working knowledge of multilayer PCB constraints (stackup, manufacturability) — enough to hand off cleanly to a PCB engineer

Engagement Details

• Type: Contract / consulting
• Rate: [TBD]
• Duration: [TBD]
• Location: Remote/Hybrid
  • Hybrid: Temporary travel to Kyiv for on-site testing, heavily preferred (expenses paid) — primarily anechoic-chamber characterization of candidate designs, with possible field testing.
• Long-term: Strong performance could lead to an ongoing or permanent role.
• Start: ASAP

About the Role

We've already proven the concept of a counter-UAV radar sensor with a first-generation prototype. This role owns the redesign that carries those lessons into a production-grade sensor, architected from requirements up, with the systems planning to do it right. You'll also own the system architecture, from the waveform, detection strategy to the system-level requirements and budgets that define it. You'll drive the RF chain and transceiver architecture hand-in-hand with the antenna engineer, converging on what's actually feasible to build while setting the DSP chain direction. Your success is our success - make your mark with Valkyrie Dynamics.

What You’ll Do

• Own the radar waveform and detection strategy
  • Chirp/FMCW design
  • Range-Doppler processing detection budgets (SNR, integration, CFAR)
  • Angle estimation to detect small, low-RCS UAV targets at high closing velocity
• Define and maintain the system-level requirements and budgets
  • Detection range, range/Doppler/angular resolution, update rate, power, thermal, and size
  • Write verifiable requirements so that meeting them validates the sensor
• Evaluate approaches across the integration spectrum, cascaded transceiver ICs, an integrated system-on-module, or a discrete RF front-end
  • Collaborate with the antenna engineer on a viable solution for channel count, LO/clock distribution, and phase-coherence strategy across the array
• Own and control the interfaces between subsystems
  • Ensure end-to-end signal chain from antenna to detection output holds together as one coherent system including:
    • Timing and synchronization (frame/trigger)
    • Transceiver-to-compute data path (sample rates, formats, latency/throughput)
    • RF/antenna boundary
• Own and continuously evolve the system model — effectively a digital twin of the sensor. During the evolution:
  • Maintain ICDs
  • Meet and manage performance metrics
  • Grow model fidelity over time, introducing the non-idealities and non-linearities that matter as complexity increases (phase noise, PA compression, quantization, channel mismatch, mutual coupling), and trace observed behavior back to the origin.
• Collaborate with the DSP engineer on the waveform and detection design
  • You lead the strategy, they own the implementation and pressure-test it for compute load, memory, and timeline — until the architecture is both performant and buildable
• Converge the open architecture questions to decisions on a schedule
  • Committing with the evidence available, revisiting only when new data (a budget, a measurement) actually changes the answer

Required Qualifications

• Radar systems you’ve architected and shipped end-to-end — from waveform and detection through the RF chain
• Strong grounding in radar detection theory
  • FMCW/chirp waveforms, range-Doppler processing, CFAR and SNR/integration, and angle estimation
  • Target-tracking fluency to set the requirements (update rate, track accuracy)
• Hands-on MATLAB for system-level radar modeling (Radar Toolbox) — you’ve built and evolved system models, not just read their output
• Track record personally owning and closing the quantitative budgets 
  • Link and detection budgets above all — and holding the design to them
• RF chain architecture experience with multi-channel/MIMO transceivers and the coherence challenges of scaling channel count, from LO/clock distribution to phase alignment across the array
• Able to work independently on a contract basis
• Must pass company security procedures
• Must communicate effectively in English

Preferred / Bonus

• Counter-UAV or defense radar experience specifically — small, low-RCS, maneuvering targets in cluttered environments
• Hands-on experience with integrated radar transceiver SoCs including integration tradeoffs they bring
• MATLAB Simulink

Engagement Details

• Type: Contract-to-permanent position
  • Starts as a contract engagement with an explicit track to a permanent lead role for the right candidate
• Rate: [TBD]
• Duration: [TBD]
• Location: Remote/Hybrid
   
  • Hybrid: Must be able to temporary travel to Kyiv for on-site testing is heavily preferred (all expenses paid) — system bring-up and field validation against real targets, correlating measured performance against the model.

NOTE: We are currently in the process of getting authorized to provide reservation from mobilization