Jobs at Djinni

We are looking for an experienced Senior Flutter Developer to join the development of a new mobile-first SaaS product in the utility services industry.

The project involves building a new application from scratch that will integrate with an existing platform through established backend services and APIs.

The application will help service providers and contractors manage their daily operations, including registration, reporting, and service payments.

This is a hands-on role for a senior engineer who can work independently, make technical decisions, and deliver high-quality solutions in a fast-paced environment.

Key Responsibilities

• Develop a new mobile-first application using Flutter.
• Take ownership of mobile application development from initial setup to delivery.
• Integrate the application with existing backend services and REST APIs.
• Build scalable, maintainable, and high-quality code.
• Collaborate with product, design, and backend teams.
• Identify and resolve technical challenges independently.
• Contribute to technical decisions and application architecture.
• Ensure application performance, stability, and usability.

Requirements

• 5+ years of commercial software development experience, including strong hands-on Flutter experience.
• Solid knowledge of Dart and Flutter framework.
• Experience building and delivering production-ready mobile applications.
• Strong understanding of mobile application architecture and state management.
• Experience with REST API integrations.
• Good understanding of authentication, data handling, and mobile security practices.
• Experience with Git and modern development workflows.
• Ability to work independently with minimal supervision.
• Strong problem-solving and communication skills.

Nice to Have

• Experience with backend development and API implementation.
• Familiarity with cloud services and CI/CD pipelines.
• Experience developing SaaS products.
• Knowledge of mobile payment integrations.

Game Design Documentation | Action RPG | Soulslike | Unreal Engine 5

Cactus Punch is looking for a motivated Junior Game Designer to join our development team and contribute to an ambitious Dark Fantasy Action RPG inspired by the Soulslike genre.

This is an opportunity for someone who wants to grow in game design, learn from an experienced team, and help turn gameplay ideas into clear, structured, and actionable game design documentation.

Your primary responsibility will be creating, organizing, and maintaining Game Design Documents (GDDs) in English. This role requires strong writing and analytical skills, attention to detail, and a willingness to work through routine tasks while maintaining a high standard of quality.

We are looking for someone with a solid foundation, a genuine interest in game design, and the motivation to keep learning.

What You'll Do

• Game Design Documentation: Write, structure, and maintain game design documents describing gameplay mechanics, systems, features, rules, and player interactions.
• Balancing: Tune the game's difficulty curve to deliver a "tough but fair" experience that keeps players in a state of flow.
• Continuous Learning: Develop your game design skills, learn the team's workflows, and gradually take on more complex design tasks.
• Information Structuring: Turn ideas, discussions, and existing materials into clear, logical, and easy-to-understand documentation.
• Design Specifications: Describe gameplay logic, requirements, conditions, rules, and edge cases in sufficient detail for the development team to understand and implement.
• Documentation Maintenance: Keep documents organized, consistent, and up to date as the project evolves.
• Research & Analysis: Research game mechanics, genre conventions, and reference titles to support design decisions.
• Team Collaboration: Work closely with Game Designers, Programmers, Artists, and QA to clarify requirements and ensure documentation reflects the intended gameplay experience.
• Iteration: Incorporate feedback, improve documentation, and refine details based on team discussions and project needs.

What We Expect

• Experience: At least 1 year of experience in game design, either in a commercial role or through personal projects that you can demonstrate and discuss.
• Portfolio: Examples of your work, such as game design documents, mechanic descriptions, personal game projects, prototypes, or other relevant materials.
• English: B2 level or higher, with strong written English. All game design documentation is created in English.
• Analytical Thinking: Ability to break down complex ideas into smaller, understandable components and identify missing information or unclear logic.
• Learning Mindset: Genuine interest in game design, openness to feedback, and motivation to learn new tools, workflows, and approaches.
• Attention to Detail: Ability to work carefully with rules, requirements, descriptions, and documentation details.
• Reliability: Ability to manage tasks independently, follow agreements, meet deadlines, and maintain consistent documentation quality.
• Routine Work: Willingness to handle repetitive documentation and refinement tasks. We value consistency, precision, and patience just as much as creativity.
• Knowing genre: Familiarity with Soulslikes.

Nice to Have

• Experience working with Unreal Engine 4/5.
• Hard skills in other game development directions.
• Experience creating prototypes or participating in game jams and indie game projects.
• A genuine interest in challenging third-person combat, dark fantasy worlds, and gameplay systems.
• Experience working with tools such as Jira, Obsidian, or Slack.
• Basic understanding of game development workflows and collaboration between Design, Programming, Art, and QA.
• Sketching or drawing skills.

What We Offer

• Remote-First Work — work from anywhere and collaborate with an international development team.
• Full-Time Employment — become a dedicated member of the team and contribute to the project's ongoing development.
• Compensation — $400–600 per month, depending on experience and skills.
• Professional Growth — develop your game design expertise, take ownership of more complex tasks, and grow into a broader Game Designer role.
• Mentorship and Feedback — learn from the team, improve your documentation skills, and develop a stronger understanding of game development.
• An Ambitious Project — contribute to an original Dark Fantasy Action RPG with a strong focus on challenging combat, atmospheric worldbuilding, and immersive gameplay.
• Real Production Experience — see how game design documentation supports the development process and helps bring gameplay ideas to life.

About the Project

We are developing an ambitious Dark Fantasy Action RPG inspired by the best elements of the Soulslike genre, combining challenging third-person combat, atmospheric worldbuilding, memorable encounters, and a dark fantasy setting.

At Cactus Punch, game design documentation is an important part of our development process. We need someone who enjoys making ideas clear, organizing complex information, and helping the team build a shared understanding of how the game should work.

This position is a great opportunity for someone who wants to build a career in game design, gain hands-on experience in game development, and grow together with the project.

If you're passionate about games, enjoy structuring information, and are ready to learn, we'd love to hear from you.

Our Customer:

A technology product company focused on developing modern web applications and delivering high-quality software solutions to users worldwide.

Your Tasks:

• Develop and maintain automated UI and API tests for new and existing features
• Improve the reliability, coverage and maintainability of the automated test suite
• Evolve the testing infrastructure that supports stable and predictable releases
• Run automated regression tests and investigate test failures
• Collaborate with Development and QA teams to resolve identified issues
• Partner with developers and QA engineers to understand new features, identify risks and define effective test scenarios
• Integrate automated tests into CI/CD pipelines
• Run backend load tests with k6 to identify performance bottlenecks
• Apply AI tools to support test development, debugging and maintenance

Required Experience and Skills:

• 3+ years of experience in QA Automation, including hands-on development and maintenance of automated tests
• Strong programming skills in JavaScript or TypeScript
• Hands-on experience with Playwright
• Strong test design skills across UI and API testing
• Proven ability to investigate automated test failures and identify their root cause
• Hands-on experience integrating automated tests into CI/CD pipelines using GitHub Actions or CircleCI
• Hands-on experience using AI tools for coding, debugging and test development
• Strong communication skills and the ability to collaborate with global stakeholders
• English – Upper-Intermediate and higher

Would Be a Plus:

• Hands-on experience with k6 for load testing
• Working knowledge of AWS infrastructure

Gamzix is a high-growth international licensed iGaming provider, creating high-performing games and scalable, cutting-edge solutions for the global market.

Our team of 150+ specialists operates globally, with Warsaw as our main hub office. We are driven by continuous improvement and a people-first culture where we communicate openly, win together, and truly enjoy the game we’re building.

We operate under an MGA B2B Critical Supply License and certifications from iTechLabs and GLI, ensuring our products meet high standards of quality, compliance, and performance across markets.

About the role

We are looking for a Chief Financial & Legal Officer to lead our Finance, Accounting and Legal functions and take ownership of the financial and legal strategy supporting the company’s growth and international expansion.

At the core of this role is strong CFO-level financial leadership combined with solid Legal expertise. The role covers financial planning and performance, corporate and commercial legal matters, international structures, compliance and risk management, with a strong focus on building scalable processes for the company’s next stage of growth.

What you’ll own

• Lead and develop the Finance, Accounting and Legal functions, ensuring clear ownership, strong collaboration and effective processes across all areas
• Develop financial models and provide data-driven analysis to support strategic planning, investments and business growth
• Drive the consolidation, automation and improvement of financial processes, including ERP implementation and migration
• Oversee key corporate and commercial legal matters, including contracts, corporate governance, licensing and regulatory requirements
• Identify, assess and manage financial, legal, tax and operational risks
• Support strategic initiatives, investments, partnerships and new business opportunities from both financial and legal perspectives

What we’re looking for

• Proven experience as a CFO, Finance Director or similar finance leader, with direct responsibility for or significant involvement in Legal
• Strong expertise in corporate finance, FP&A, budgeting, forecasting, cash-flow management and management reporting
• Solid hands-on experience with corporate and commercial legal matters, contracts, international corporate structures and compliance
• Strong understanding of tax, audit, financial controls, compliance and risk management
• Experience with ERP implementation/migration, financial transformation and process automation
• Strong commercial mindset and the ability to assess business opportunities and risks beyond purely financial metrics.
• Ability to translate complex financial and legal matters into clear, practical business decisions
• Strong leadership, stakeholder management and negotiation skills

Nice to have

• Experience in iGaming, FinTech, Payments or another regulated international industry
• Experience supporting international expansion and establishing operations in new jurisdictions
• Experience with M&A, investments, corporate restructuring or complex cross-border projects

What we offer

• A C-level role with direct impact on business strategy and the company’s further growth
• Direct partnership with the CEO and leadership team
• A highly international environment and exposure to multiple markets and jurisdictions
• A fast-growing business where decisions can be implemented quickly and have a visible impact
• A culture built around Talk Openly, Win Together, Reach the Highest, Driven by Results and Enjoy the Game
• Flexible cooperation format and the opportunity to work remotely

CFLO at Gamzix is not about maintaining what already exists, it’s about driving change, challenging the status quo, shaping strategy, and building what comes next.

Responsibilities

• Develop and implement a cohesive technology strategy that aligns with the company's business goals, focusing on accelerating growth and enhancing competitive advantage. Ensure our trading infrastructure supports high-volume, low-latency trading with maximum uptime;
• Lead the technology team by fostering an innovative, collaborative, and high-performance culture. Mentor and develop the team to ensure they are proficient in the latest technologies and methodologies;
• Drive technological innovation to improve trading platforms, back-office systems, and client-facing applications. Ensure our technology stack is scalable, reliable, and can support rapid growth and international expansion;
• Oversee the development and implementation of robust cybersecurity measures to protect client data and company assets. Ensure compliance with international financial regulations and standards;
• Negotiate and manage relationships with software vendors, technology partners, and service providers to ensure they meet the company's standards for quality and service;
• Regularly review and optimize the performance of the IT infrastructure and systems to ensure they meet the demands of the business, including high transaction volumes and fast execution speeds;
• Ensure that technology initiatives drive improved user experience and customer satisfaction. Be proactive in identifying and implementing technology solutions that meet the evolving needs of traders;
• Stay abreast of new trends and technologies in the financial and tech industries. Evaluate and propose the adoption of new technologies that can benefit the company.

Requirements

• At least 10 years of experience in a technology role 
• At least 5 years on leadership position as CTO, Director of Engineering etc
• Proven track record of developing and executing technology strategies that have contributed to measurable business growth;
• Engineering background with extensive experience in software development, IT infrastructure, data engineering, cybersecurity, and IT operations;
• Strong leadership and team development skills, with the ability to inspire and motivate a high-performing technology team;
• Excellent communication and interpersonal skills, with the ability to engage effectively with stakeholders at all levels;
• Comprehension of core compliance standards, governance, and regulatory requirements.
• A degree in Computer Science, Engineering, or a related field. 
• Fluent in East Slavic languages;

Will be a plus 

• Experience in financial services or trading industry, ideally with a strong background in developing and optimising trading platforms like MT4 and MT5;
• AI fluency and awareness of current AI methodologies and best practices within tech operations;
• An MBA or equivalent experience in business management is highly desirable;
• Willingness to work from Cyprus office.

Responsibilities

• Partner with the CEO to translate company strategy into clear priorities, measurable goals and performance standards across functions
• Own the annual planning and goal-setting cycle in collaboration with Finance and functional leaders
• Own the end-to-end quarterly performance cycle, ensuring disciplined execution, data integrity, and consistency across teams
• Lead performance and calibration discussions with senior management and C-level stakeholders to ensure objective, comparable evaluation
• Assess the quality and effectiveness of KPIs used across the business; challenge and refine metrics that do not reflect real outcomes
• Partner with HR and Finance to ensure performance outcomes are used consistently in promotion, underperformance (PIP/exit), and reward decisions
• Support organisational design and workforce planning as the company grows
• Coordinate key cross-functional initiatives and track execution against agreed priorities
• Prepare analytical materials and recommendations for the CEO and the executive committee, and follow through on decisions
• Build and lead a team covering performance, planning and execution
• Continuously improve how the company plans, executes and measures performance to support growth and organisational maturity

Requirements

• 7+ years of professional experience in strategy, business operations, analytics, consulting, or performance-related leadership roles
• Minimum 3 years of experience in a senior leadership or management position
• Proven experience designing and operating performance frameworks or planning processes in fast-growing, metrics-driven organisations
• Experience working closely with a CEO or executive team and leading structured discussions with senior stakeholders
• Strong understanding of how performance metrics connect to business results, efficiency, and growth
• Highly analytical mindset with the ability to identify root causes, inconsistencies, and performance risks through data
• Ability to manage complex, time-bound initiatives with high standards for execution discipline and data quality
• Strong communication and stakeholder management skills, including the ability to challenge assumptions and influence senior leaders constructively
• High level of ownership, integrity, and discretion when working with sensitive information
• Fluency in English and Ukrainian
• Willingness to work from the Cyprus office

Will be a plus

• Experience in fintech, brokerage, payments, or other regulated, metrics-driven industries
• Background in top-tier consulting (McKinsey, BCG, Bain) or strategy roles in hyper-growth technology companies
• Experience linking performance metrics to compensation, incentives, or investment decisions
• Hands-on experience with BI, analytics platforms, or performance management tools

About us
EcoNatura is a DTC company for natural health and personal care products, selling around 90,000 units a year. Our main markets are Germany, Austria and Switzerland, and we’re also growing in the US. We advertise on Meta, TikTok and especially Pinterest.

The role
We’re looking for a highly motivated video editor who creates performance ads that sell. About 90% of our videos are AI-generated. You’ll combine AI footage, medical animations (how a product works in the body, anatomy scenes, before/after visuals), voiceovers and captions into short, high-converting ads in 9:16 and 4:5.

What you’ll do

• Turn our scripts into finished ads, including hooks, pacing, captions, sound design and CTA
• Create AI scenes and medical animations in Higgsfield (Kling, Veo, Seedance, Nano Banana etc.)
• Produce voiceovers with ElevenLabs
• Build several hook variations per concept for testing
• Improve based on our ad performance data (what wins, what doesn’t)

What we offer

• Long-term, fully remote role with flexible, async working hours
• Clear scripts with remarks, plus a lot of creative freedom in the visual style
• Full access to our tools: Higgsfield, ElevenLabs, Claude, plus any other software you need
• No German needed: our ads are mostly in German, but Claude handles translation and we communicate in English
• A steady flow of products and concepts, so you’ll always have work
• Paid trial task, no unpaid tests
• Lean team, short communication paths, fast decisions
• Higher pay when your ads perform well

About the process

1. Short intro call
2. Paid trial: one ad based on our script
3. Start

Our partner is an international FinTech company developing and scaling payment solutions across global markets. With a team of over 70 people, the company has already secured a significant share of one of the most challenging payment markets and is expanding into major new geographies.

We’re looking for a hands-on leader who has already built a supply function in FinTech: sourced and onboarded a provider network, hired a team, and established clear processes.

What you’ll do

• Build the Supply function, defining its strategy, team structure, procedures, and KPIs.
• Source, evaluate, and onboard PSPs, payment channels, currency exchange services, and other payment solution providers. Lead negotiations and renegotiate commercial terms.
• Build a team from scratch, including researchers and hunters responsible for sourcing and onboarding partners, and account managers responsible for managing those relationships. Own recruitment, training, and working methods.
• Develop a network of agents and local partners across key markets, including new geographies.
• Monitor provider availability, stability, and service quality while maintaining a pool of alternative providers.
• Test hypotheses and adapt the supply model to market volatility and expansion into new geographies.
• Work closely with Finance, Operations, and the commercial team.

What you’ll bring

• At least 2 years of experience in FinTech, such as PSPs, payment processing, P2P platforms, currency exchange services, crypto exchanges, banking, or acquiring.
• An understanding of pay-ins and payouts, fees, exchange rates, AML, and risk.
• Direct experience in Supply: sourcing payment solutions and building, onboarding, and developing a network of providers and partners. Experience selling to merchants alone does not meet this requirement.
• Experience building your own team and processes from scratch.
• Strong negotiation skills, independence, and the ability to take ownership quickly.
• English proficiency at B2 level or above.

Nice to have

• Experience in iGaming.
• Knowledge of India and other Asian markets, including the specifics of working with local partners.

What we offer

• The opportunity to shape a function and build your own team, with a direct impact on the business and strategic decisions.
• A company with an established market position and an increased budget for the Supply function.
• Performance-linked compensation: a base salary and bonus structure to be discussed during the interview.
• Remote work and flexible hours.
• Onboarding support from the founders and the team.

If you’ve already built a supply function in FinTech and want to do it again in a growing company, we’d love to hear from you!

We're looking for a rigorous, technical RL Data QA Engineer to review the reinforcement-learning tasks built on our platform before they reach frontier AI labs.

Every task on our platform is a small software environment: instructions, a containerized environment, a reference solution, and tests that turn an AI agent's work into a reward. Before a task reaches you, it has been run many times against frontier coding agents and audited automatically. You are the expert human judgment that decides whether it is good enough to train and evaluate the next generation of AI. Is it correct, fair, challenging and impossible to game?

What You'll Do

• Review RL tasks end to end: Examine instructions, environments, reference solutions and tests, and decide whether each task meets our quality bar.
• Break the verifier: Look for the ways an agent could pass without really solving the task, such as weak tests, leaked solutions or loopholes in the environment.
• Read agent trajectories: Analyze how frontier coding agents attempted each task, and tell a genuine solve from a lucky or illegitimate one.
• Judge difficulty with data: Interpret pass rates across models and trials, and decide when a result is solid and when it needs more evidence.
• Separate task faults from platform faults: Make sure contributors are judged on their work, never on infrastructure issues.
• Write feedback that gets tasks fixed: Give contributors precise, actionable comments, so a task improves in one iteration instead of three.
• Raise the bar over time: Turn recurring defects into rubric rules, automated checks and better task templates, working with our engineers and researchers.

What We're Looking For

• Strong engineering skills: Comfortable with Python, Bash, Linux and Docker. You can build, run, break and fix a task environment yourself.
• An adversarial mindset: You enjoy finding the hole: exploits, test gaps, edge cases, reward hacks.
• Clear, precise writing: Your feedback is specific, actionable and respectful.
• Statistical common sense: You understand pass rates, small samples and variance well enough to make sound calls.
• Ownership and autonomy: You take responsibility for quality, including the issues nobody else noticed, and you work without constant supervision.
• Ambition and drive: A highly motivated, resourceful and results-oriented person who wants to grow quickly and make a tangible impact on frontier AI.

We value demonstrated achievements, intellectual curiosity and the ability to execute over years of experience or impressive job titles.

Nice to Have

• Experience with RL environments, LLM evaluations, benchmarks or reward modeling.
• Deep technical knowledge in at least one domain: For example QA, software engineering, networking, security, data or ML engineering.
• Experience authoring tasks or benchmarks for AI agents.
• Fluency with AI coding agents (Claude Code, Codex, Cursor or similar) as review tools.
• Experience writing review guidelines or calibrating a team of reviewers.

Why Join ARIMLABS?

• Shape frontier AI directly: The tasks you approve train and evaluate the next generation of AI coding agents.
• Exceptional growth opportunities: Join a fast-scaling AI research company at an early stage, with a path to leading the QA function as it grows.
• High autonomy: Freedom to make expert calls and propose better ways of working, without unnecessary bureaucracy.
• Work with exceptional people: Collaborate with highly skilled researchers, engineers and domain experts working on challenging problems at the frontier of artificial intelligence.
• Exposure to frontier AI: See every day how the most capable AI agents succeed, fail and cheat.
• Entrepreneurial environment: Work in a company that values initiative, speed, ownership and ambitious thinking.
• Career flexibility: Grow toward QA leadership, research, or task design as the organization expands.
   

Compensation & Working Conditions

• Engagement: B2B contract.
• Time off: 24 days of paid time off annually.

We are a fast-growing, ambitious iGaming startup operating in Tier-1 markets. We are launching a new product and looking for a strong Lead Data Analyst  who will design and build our data infrastructure from scratch, set up end-to-end reporting, and drive product growth through actionable insights.

If you know how to architect a modern data stack for a new product, build intuitive BI dashboards, and turn raw data into strategic business decisions - this role is for you.

🔹 Key Responsibilities:

• Architect and design the data pipeline model, data warehouse structure, and tracking framework for our new product in close collaboration with the Data Engineer.
• Create actionable, clear BI dashboards (reporting, cohort analysis, funnel visualization, LTV/CAC modeling) for key stakeholders.
• Define, track, and analyze core iGaming metrics (retention, monetization, user journeys) to uncover growth opportunities.
• Establish single-source-of-truth standards, ensuring data accuracy, consistency, and accessibility across the company.

• Work closely with C-level leadership to translate analytical findings into clear business strategies and product improvements.

   

🔹 Requirements:

• Hands-on experience designing and setting up data architecture/infrastructure from scratch for a new product or platform.
• Strong experience building scalable BI dashboards and reports that non-technical teams can easily use.
• Deep understanding of product and business metrics in iGaming/Gaming (LTV, CAC, Churn, Retention, Player Value, NGR/GGR).
• Advanced SQL, conceptual understanding of DWH, ETL/ELT workflows, and modern BI tools (Looker, Tableau, Power BI, etc.).
• 4+ years in Data/Product Analytics with experience or readiness to lead the analytics function.

• English - B1 or higher. Proficiency in Ukrainian is a strong asset.

   

🔹 What We Offer:

• Complete freedom to build the entire analytics function and data stack from scratch for a high-potential product.
• 100% remote work with a flexible schedule.
• A high-performance, results-oriented culture with direct access to founders and zero bureaucracy.

About the Project

When a new Diablo season or Path of Exile league drops, millions of players open Maxroll before they start to play.

Maxroll.gg, part of IGN, is the go-to companion for RPG players, with over 25 million visits a month. We cover Diablo IV, Path of Exile 1 and 2, Lost Ark, Last Epoch, World of Warcraft and more, with expert guides, build planners and deep game databases. Launch days bring massive traffic spikes, and every player expects fresh, accurate data instantly. Keeping that fast is the job.

If you’ve ever spent an evening min-maxing a build, you already know our users.

Everything runs on one TypeScript stack:

• a Remix frontend over headless WordPress
• a planner service for player builds
• background jobs for game data, search, analytics and revenue
• a new game data platform with a keyed API and a published React SDK

We validate at the boundary and derive everything else. Zod checks all data coming into the system, and types flow from the database table through to the React component. Strict lint rules block any and as. Anything important is covered by a lint rule or a build check, so a rename breaks the build, not production.

The Work

You will be:

- APIs: building and maintaining REST and GraphQL APIs in TypeScript (Fastify, Hono) for user profiles, subscriptions and game data. This includes authentication, rate limits and typed contracts.

- Databases: designing schemas and writing queries for PostgreSQL and MySQL (Prisma, Drizzle). The data includes versioned game data and player-made builds, and the migrations run on tables that are in live use.

- Analytics: running our ClickHouse pipelines: per-request logs rolled up over time with materialized views, article and revenue metrics, and the queries behind our dashboards.

- Caching: owning the cache layers end to end: Redis-compatible stores, query caching, a tag-invalidated cache, HTTP cache headers, and CDN purges when content changes.

- Background jobs: building and running scheduled jobs and queue consumers (NATS). They sync game data, leaderboards and in-game events, index content in Meilisearch, generate sitemaps, and process Stripe webhooks, payouts and data-deletion requests.

- Integrations: working with third-party APIs such as Stripe, Discord, Blizzard, IGDB, Steam and YouTube, handling retries, backoff and their rate limits.

- Media pipelines: processing game images into map tiles, sprite sheets and responsive image sizes.

- Performance: keeping responses lean for our Remix and Next.js pages, because payload size and time to first byte affect PageSpeed and SEO. You'll also change React code when a feature reaches into the frontend.

- AI agents: working with AI coding agents (Claude Code, Cursor) every day. That means directing them, reviewing their output, and maintaining the guardrails that make their changes safe to merge (tests, lint rules, build checks, agent instructions).

- Shipping: deploying through Docker, GitHub Actions and Kubernetes.
 

Technical Stack / Requirements

- 5+ years of backend experience with TypeScript on Node.js (Bun is a plus)

- A strong command of TypeScript's type system: generics, inference, discriminated unions and narrowing, plus schema validation with Zod or similar

- Strong SQL on PostgreSQL and/or MySQL: schema design, indexing, reading query plans, migrations on live data, transactions and locking

- Experience running an analytical database at production volume (ClickHouse preferred; BigQuery, Druid or similar also counts)

- Experience designing caching: Redis or a compatible store, invalidation strategies, HTTP caching headers, CDN behavior

- Experience designing and consuming REST and GraphQL APIs, including authentication and rate limiting

- Experience with background jobs and message queues, including what should happen when a job runs twice or not at all

- Experience on a production, high-volume, user-facing application

- Experience leading a product from inception to production

- Daily, hands-on use of AI coding tools (Claude Code, Cursor or similar) in a real codebase, and a clear sense of when their output needs checking

- Comfortable reading and changing React code when a change crosses into the frontend

- Passion for gaming
 

Nice to have

- shadcn/ui and Tailwind CSS

- Our current stack: Remix, Next.js, Fastify, Hono, Prisma, Drizzle, Zod, Apollo GraphQL, Meilisearch, NATS, Ory, Stripe, Nx, Bun

- Strict lint setups: typescript-eslint strictTypeChecked, custom lint rules, architecture boundaries

- Docker, Kubernetes, GitOps (ArgoCD), GitHub Actions, External Secrets

- Payments and subscriptions (Stripe checkout, webhooks, promotion codes)

- Writing agent instructions, skills or custom tooling for AI coding agents

- Experience building a game tool, such as a database, interactive map, calculator or planner
 

What we offer

- Stable, long-term work on a product used by millions of people.

- Direct communication.

- A highly technical environment with a small team that values each individual's work and contributions.

We are looking for a smart person, who can join our clients team on outstaffing basis. The startup is from Israel and US, they are working in logistics domain.

This is a startup environment where your impact really matters.

The team is growing so the VP of engineering is looking for one more dev to join the team. He is looking for someone with good communication skills, team player, very confident with AI tools like Claude.

Requirements:
- Strong Python development skills
- SQL Postgres experience
- AI Claude development , with AI Agents

- AWS experience is a big plus
- English level Upper-intermediate (B2)
- at least 2 years of hands-on prior experience as Software engineer

We offer 15 days off - 5 days of sick leaves a year, constant growth in a team, fully remote work.

AP US Tax Compliance and Advisory is a US tax firm based in Israel serving Israeli investors with US real estate and US citizens living abroad. Owner-run, growing, and building its own technology.

THE PROJECT

We are building our own client platform for the 2027 US filing season. The backend (FastAPI, Postgres, an integration with our tax software's REST API) is owned by our lead engineer; you own everything the user sees: a client portal for taxpayers and their representatives, a staff console for coordinators, preparers, reviewers and signers, and later a dashboard for partnership sponsors. The product is forms and documents: engagement letters and consents as click-through, a conditional questionnaire generated from a versioned JSON schema, document upload and extraction confirmation, attestation, payment, e-signature, status and delivery. Two languages, English and Hebrew, with right-to-left layout done properly.

RESPONSIBILITIES

- Front-end architecture: Next.js (App Router), TypeScript, a component library (Radix/shadcn or similar), i18n with RTL, state management, API client generated from the OpenAPI spec.

- Schema-driven form engine: render questionnaires from JSON schema with conditional visibility, repeating groups (properties, partners, K-1s), validation messages in both languages, evidence attachments, autosave and resume.

- Auth: passwordless magic link and OTP for clients, MFA for staff, step-up verification before sensitive screens; session handling that never stores identifiers client-side.

- Documents: pre-signed upload with progress and type/size checks, previews, extraction confirmation UI (side-by-side document and proposed values, correct and confirm).

- Payments and signatures: Stripe Checkout or Elements, e-signature vendor handoff and status, wet-signature upload path.

- Staff console: job board with filters, engagement detail, gates (ruling, review, release with typed authorization), masked identifiers with logged unmask, audit view.

- Quality: accessibility (WCAG AA), responsive phone-first client screens, Playwright end-to-end tests, CSP and front-end security review.

- Collaboration: the lead engineer on API contracts; an AI assistant that writes specifications and reviews every pull request; weekly 30-minute call with the owner.

REQUIREMENTS

- 4+ years React in production, 2+ years Next.js and TypeScript.

- Shipped at least one forms-heavy product (onboarding, KYC, insurance, lending, tax, healthcare intake) and at least one bilingual or RTL product (Hebrew or Arabic).

- Auth and payment flows implemented end to end.

- Comfortable reading and writing Python for API endpoints and tests.

- Clear written English; four hours of daily overlap with UTC+2; availability December 2026 through June 2027, 30-40 hours per week.

NICE TO HAVE: FastAPI; Playwright; design skills; fintech or document-processing UX; Hebrew.

ENGAGEMENT TERMS

- Independent contractor (B2B) via Deel, Payoneer or Upwork; NDA, IP assignment and the firm's confidentiality agreement signed before repository access.

- Phase 1: December 1, 2026 to April 30, 2027, 30-40 h/week; USD 3,000-5,000 per month (or USD 25-40/h).

- Phase 2: May 2027 onward, retained maintenance 5-15 h/week, priced separately.

- Access: development and staging only; synthetic data; no production access.

- Remote; Ukraine, Poland, Georgia, Armenia, Serbia, Kazakhstan and similar time zones preferred. Not available to contractors located in Russia.

PROCESS

1. Written application: CV or profile, links to two shipped products you built the front end of, and a short answer to: how would you render a 60-question conditional questionnaire from a JSON schema in two languages, one of them right-to-left, so that a non-technical person can change the questions without a deploy?

2. 30-minute call with the owner.

3. Paid trial task: 10-15 hours over one week, USD 500 paid regardless of outcome: a schema-driven form slice with RTL and validation against a provided API stub.

4. References, contract, onboarding. Target start: December 1, 2026.

Applications without the links and the answer are not reviewed.

AP US Tax Compliance and Advisory is a US tax firm based in Israel serving Israeli investors with US real estate and US citizens living abroad. Owner-run, growing, and building its own technology.

THE PROJECT

We prepare US tax returns in Wolters Kluwer CCH Axcess and have automated most of the preparation through CCH's REST API: import, calculation, printing, review memos, e-file qualification and release all run from code today. What runs in scripts must become a product before the 2027 filing season: a client platform where clients (or their AI assistants) complete a structured intake, the system extracts data from documents, prepares the return through CCH, routes it to a human reviewer and signer, collects an e-signature and payment, releases the e-file and delivers the result. The design document, data model, state machine, API and security model are written. You will be the first engineer and you will own the backend.

RESPONSIBILITIES

- Backend architecture and implementation: Python 3.12, FastAPI, SQLAlchemy/Alembic, Postgres, a job queue, workers, webhooks.

- The CCH Axcess API module as a server-side job runner: one in-flight job per return, global concurrency limits, exponential backoff on locks, idempotency keys, prompt handling, structured results, parked-job alerts.

- Security engineering: PII vault with field-level encryption (KMS), tokenized payload assembly, append-only audit log, RBAC with step-up MFA for sensitive actions, PII-free logging with a redaction layer, secrets manager, backups and restore tests.

- Integrations: Stripe (payments, webhooks), an e-signature vendor with identity verification, Google Drive, transactional email, WhatsApp Business API, Anthropic API for document extraction with human confirmation.

- Infrastructure as code on AWS (ECS Fargate or App Runner, RDS, S3, KMS, Secrets Manager, CloudWatch) or an agreed managed platform; CI with tests and security scans; staging and production environments; runbooks.

- You work against a mock CCH server built from our specification; production runs are performed by the firm. You will never hold production credentials or see client data.

- Collaboration: a full-stack engineer on the portal and staff console; an AI assistant that writes specifications and reviews every pull request before the owner sees it; a weekly 30-minute call with the owner.

- After the build: a retained maintenance agreement including on-call during the filing season.

REQUIREMENTS

- 5+ years building Python backends in production, 2+ years as the person responsible for a system's reliability.

- Deep Postgres: schema design, migrations, transactions, indexing, point-in-time recovery.

- Integrations with unreliable third-party APIs: retries, idempotency, partial failure, long-running jobs with polling.

- Security habits: least privilege, secrets management, no sensitive data in logs, dependency hygiene. You can explain how you would design a system where the people who build it never see the data it holds.

- Docker; one major cloud; infrastructure as code.

- Clear written English; you document decisions and write runbooks without being asked.

- At least four hours of daily overlap with Israel (UTC+2); availability December 2026 through June 2027 at 30-40 hours per week.

NICE TO HAVE

- Fintech, payments, accounting, insurance or health-data experience; SOC 2 or ISO 27001 exposure.

- LLM API experience (Anthropic/OpenAI SDKs, tool use, structured outputs) or MCP servers.

- Experience with XML-heavy enterprise APIs.

- Russian or Hebrew (the owner speaks both; not required).

ENGAGEMENT TERMS

- Independent contractor (B2B) via Deel, Payoneer or Upwork; NDA, IP assignment and the firm's confidentiality agreement signed before access to any repository.

- Phase 1: December 1, 2026 to April 30, 2027, 30-40 h/week; USD 3,500-6,000 per month (or USD 30-45/h) depending on seniority and hours.

- Phase 2: May 2027 onward, retained maintenance 10-20 h/week plus on-call in season, priced separately.

- Access: development and staging only; no production data, no production credentials; mock CCH server and synthetic data.

- Remote; Ukraine, Poland, Georgia, Armenia, Serbia, Kazakhstan and similar time zones preferred. Not available to contractors located in Russia.

PROCESS

1. Written application with three short answers: (a) one third-party API integration you built that had to survive locks, rate limits or inconsistent responses, and what you did about it; (b) how you keep secrets and personal data out of logs in a system you run; (c) your availability December 2026 to June 2027 and your overlap with UTC+2.

2. 30-minute call with the owner.

3. Paid trial task: 10-15 hours over one week, USD 500 paid regardless of outcome, on the mock server with synthetic data.

4. References, contract, onboarding. Target start: December 1, 2026.

Apply with a CV or LinkedIn profile, links to code or systems you are proud of, and the three answers. Applications without the answers are not reviewed.

General skills:

• Experience at hosting customer support / success etc. position from 1,5 years;
• Understanding how a PC and a server work and how their components interact;
• Knowledge of the basic principles of how networks work;
• Ability to work on several tasks in parallel (chats, tickets);
• Ability to listen, understand, and identify client needs;
• Ability to work with task-tracking systems (Jira, YouTrack);
• Intermediate or above level of English, Ukrainian (reading/writing), Russian (reading/writing);
   

Responsibilities:

• Clear communication with clients and evaluate their needs;
• Professional and diplomatic communication, conflict avoiding and resolution;
• Reporting;
• Involvement in sales cycles;
• Ownership and accountability;
   

We offer:

• Competitive salary level;
• Work in a friendly team;
• Free English language training;
• Schedule: 4/2, in 3 duties (08:00 -16:00, 12:00-20:00, 19:00-03:00);
   

About project:

BlueVPS is a young Team of enthusiasts with 8 years on the market. Now we're actively expanding and looking for purposeful employees.