Jobs Python

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

Project: Portfolio management systems for a US financial institution. 

What you will be doing:  

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

What we are looking for:  

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

What we offer: 

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

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

Project: Development of a Market Risk platform for a global financial institution, supporting risk analytics, market data processing, and large-scale financial applications. 

What you will be doing:

As part of the team, you will be participating in a client project focused on Market Risk Technology solutions. You will help develop new software features, as well as support and maintain existing ones. You will write scalable and fault-tolerant code, debug applications, and build solutions for market data processing and risk analytics. You will collaborate closely with the client, product managers, and engineering teams to understand the system’s functional and non-functional requirements. You will contribute to code quality through unit testing, integration testing, code review, and system design to build robust software that aligns with the client’s business needs. 

What we are looking for:  

• 5+ years of commercial Python development experience.
• Strong knowledge of object-oriented programming, algorithms, and data structures.
• Experience designing scalable backend applications, frameworks, or data platforms.
• Experience building backend systems and working with REST APIs.
• Experience working with SQL, large datasets, and data processing pipelines. 
• Experience with automated testing and CI/CD practices.
• Experience using distributed computing technologies is a strong plus. 
• Strong problem-solving skills and ability to collaborate effectively in a team environment.
• Upper-Intermediate level of English or above. 
• Bachelor’s degree or higher.

What will be a plus:

• Extensive experience with C++ or Java/Scala.
• Experience in financial services or Market Risk systems.
• Knowledge of Historical VaR, Expected Shortfall, or FRTB.

What we offer:

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

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.

We run a B2B data platform for the entertainment industry — it tracks talent, who represents them, the deals they're doing, and the data surrounding all of it. The product is established and has been around for almost 10 years with paying customers; we're not a pre-launch startup.
 

We're rebuilding the platform from Symfony/Angular to Django and React, and we're hiring a senior developer to lead the rebuild — owning the architecture, setting technical direction, and assigning and reviewing work for our current developer. After the rebuild ships, you'll stay on as the long-term owner of the system. 

This is a permanent role, not a contract that ends with the migration.

We want more than a ticket-taker. You should understand the business logic behind what you're building, push back when a requirement doesn't match how users actually work, and drive architecture decisions.

Must have

• 6+ years of professional Python/Django experience
• Strong experience building REST APIs with Django REST Framework
• Has built and shipped systems from scratch, and owned a codebase long-term
• Experience with data-heavy applications (large datasets, complex querying, migrations)
• Comfortable leading: planning work, delegating tasks, and reviewing another developer's code
• Strong written and spoken English — you'll work directly with non-technical stakeholders
• 4+ hours of daily overlap with US Eastern time
• Advanced English speaking

Nice to have

• Hands-on React experience (our frontend stack)
• Experience rebuilding or migrating legacy systems (Symfony familiarity a bonus)
• Django Admin customization
• Third-party API integrations

We’re looking for a Senior Backend (Python) Engineer to join our team. 

Work Location: Poland (Krakow), Slovakia (Kosice) or Czechia (Prague). 

Hybrid: 2+ days per week in the office, the rest remote.

The Mission

We are building a complex, real-time ecosystem for micromobility and logistics systems sim—where split-second logistics meet seamless user experiences. We need a Senior Backend (Python) Engineer powerhouse to lead the development of our Customer Mobile Web App and our high-utility Internal Admin Panels.

You’ll be the bridge between the sleek, high-performance interface our users see and the robust, scalable Python services that power the logic.

Key Responsibilities

• Mobile-First Frontend: Architect and scale our React-based mobile web application, ensuring 60fps performance and offline-first capabilities.
• Operational Control Centers: Build dense, data-heavy Admin Panels that allow our operations team to monitor real-time logistics, manage users, and handle complex dispatching.
• Scalable Backend: Design and maintain performant APIs using Python (FastAPI/Django) to handle high-concurrency event streams.

• End-to-End Ownership: From database schema design to CSS transitions, you’ll own the entire feature lifecycle.

   

Who You Are

• The Architect: You don't just "write code"; you design systems. You understand how a change in a Python microservice ripples out to the React frontend.
• UX Enthusiast: You understand that an Admin Panel requires different UX "muscle" (efficiency and density) than a mobile app (simplicity and speed).
• Problem Solver: You’ve dealt with the "hard stuff"—real-time GPS tracking, race conditions in booking logic, or complex state management.
• Pragmatist: You balance the need for clean, tested code with the reality of shipping features in a fast-paced environment.

Will be plus Led transformation of standalone product into scalable SaaS platform.

Why Join Us?

Work on a product with immediate, real-world impact.

A "no-red-tape" environment where your architectural decisions stick.

Layer Technology

Frontend - React Native Expo, Styled Components, Mobx/Redux, WebSockets. Experience with Firebase, Expo SDK, Expo Modules.

Backend-  Python (FastAPI / Django / Flask)

Database - PostgreSQL, Redis (for real-time caching)

Infrastructure - AWS/GCP, Docker, Kubernetes

Real-time-  WebSockets / Socket.io (for "Uber-style" live tracking)

Requirements & Skills - 

• Proven experience in Python and backend development using FastAPI, Django, or Flask.
• Strong understanding of geospatial data structures (GeoJSON, latitude/longitude).
• Understand principles of cloud native development
• Usage of docker for development environment
• Familiar with Kubernetes (application lifecycle and environment)
• Familiar with Helm charts (their maintenance and usage)
• Familiar with ArgoCD, Grafana, Github
• Nice to have - familiarity with helmfile

Required Skills

• 5+ years of experience with Python, primarily in backend development
• Python: Advanced
• FastAPI / Django / Flask

Language Skills

English: Upper intermediate (B2)

We offer

• Challenging and rewarding tasks with autonomy in a distributed international team
• Motivated colleagues who foster a collaborative environment
• Competitive salary based on your experience and expertise
• 20 vacation days + state holidays + your birthday off (for full-time employees)
• Sick leave coverage (5 days for full-time employees)
• Opportunities for regular business trips abroad

Domain: Banking & Finance
Experience: 5+ years
Project Duration: August, 2026 – November, 2026(to be extended)
Format: Hybrid
Location: Kraków, Poland

About the Project

We are looking for a Python Developer with AI expertise to join a team of engineers building strategic AI and machine learning solutions that are transforming the Credit and Lending industry.

Working in a dynamic, innovative, and well-established environment, the selected specialist will collaborate closely with business stakeholders to deliver impactful, production-grade AI solutions.

This role is a great fit for an engineer who enjoys leading technical initiatives and applying modern AI technologies to solve complex business challenges.

Responsibilities

• Design, develop, and maintain clean, scalable, and well-tested software solutions
• Lead the architecture and implementation of AI/ML systems, ensuring reliability, scalability, and alignment with long-term platform goals
• Take ownership of major AI initiatives from solution design through deployment and operationalization
• Support and mentor other engineers, promoting engineering excellence, collaboration, and continuous learning
• Help define and promote engineering standards, AI governance practices, and responsible AI principles across the organization
• Contribute to the technical roadmap by researching, evaluating, and prototyping emerging technologies, including advanced RAG approaches, LLM optimization techniques, and agent-based systems
• Collaborate with cross-functional stakeholders to translate business needs into effective technical solutions and clearly communicate complex concepts
• Build advanced AI-powered applications using Retrieval-Augmented Generation (RAG), vector databases, and large-scale financial datasets

Requirements

• 5+ years of strong commercial experience with Python
• At least 6–12 months of hands-on experience within the broader AI/ML ecosystem
• Practical experience with relational databases such as PostgreSQL, vector databases, key-value stores such as Redis, and Pub/Sub messaging systems
• Deep understanding of microservices architecture, API design, observability, and concurrent/distributed systems
• Ability to make and drive architectural decisions in complex technical environments
• Strong knowledge of modern LLM architectures and hands-on experience adapting and fine-tuning models for domain-specific use cases
• Practical expertise in Retrieval-Augmented Generation (RAG), prompt engineering, and related generative AI techniques

Nice to Have

• Exposure to Java, particularly for integration and middleware-related tasks

Tech Stack

• Python
• AI / Machine Learning
• PostgreSQL
• Redis
• Microservices
• APIs
• LLMs
• RAG

Location

• Hybrid from Kraków, Poland
• Important: the client requires office visits in Kraków 8 days per month

socket.agency is an AI software agency. We design and ship AI-powered products using FastAPI/Django services, Postgres, React.js/Next.js, event-driven systems, LLM integrations, and automation. Small team, high ownership, real engineering culture.

What you'll do:

— Design and build backend services end-to-end (API design, database schema, background processing, third-party integrations) and own them from first commit to production.

— Work across microservices and event-driven flows: async workers, webhooks, retries/idempotency, message queues.

— Integrate LLMs (OpenAI / Anthropic APIs) and build AI-powered features and automation.

— Ship with Docker + CI/CD; keep reliability, testing, and clean service boundaries first-class.

— Work directly with the founder on technical direction — your decisions carry weight.

Our stack:

Python (async/asyncio), FastAPI, Django/DRF, PostgreSQL, SQLAlchemy, Celery/RabbitMQ, Redis, Docker, CI/CD.

You'll fit if you:

— Have 5+ years of production Python and have owned backends solo.

— Think in terms of reliability, idempotency, and maintainable architecture, not just making it work.

— Are comfortable with ambiguity and moving fast without breaking production.

Senior Python Developer для AI-агентів, LLM systems та agentic workflows.

🚀 Про Workeron.ai

Workeron.ai — AI startup, який створює AI агентів та digital employees для автоматизації реальних бізнес-процесів.

Ми не робимо черговий wrapper над ChatGPT.

Наша ціль — створювати AI-системи, які можуть виконувати реальні задачі всередині компаній та забирати рутину з команд.

Ми працюємо в режимі швидкої перевірки гіпотез:

24 ideas → 6 strong products → 1 scalable winner

Ми цінуємо:

• швидкість
• execution
• ownership

• product thinking

   

⚙️ Engineering Approach

Усі продукти розробляються у shared monorepo на базі:

• uv workspaces

• Turborepo

   

Наш підхід:

• modular monolith
• reusable components
• strict module boundaries
• можливість швидко перейти до microservices після PMF

Наша задача — рухатись швидко без технічного хаосу.

🌍 Формат роботи

• Fully remote
• International AI-focused environment

• Пряма співпраця з founders та Product Owners

   

💰 Compensation

• $4,000–6,000/month

   

💡 Про роль

Шукаємо сильного Senior Python Developer з реальним hands-on досвідом роботи з AI/LLM продуктами та agentic systems.

Ви будете працювати над AI агентами, multi-agent workflows, orchestration systems та швидкою розробкою MVP → production systems.

Ця роль підійде людині, якій подобається:

• швидко будувати продукти
• працювати з неоднозначними задачами
• поєднувати backend engineering та applied AI

• мати прямий вплив на продукт

   

🛠 Що потрібно буде робити

• Розробляти AI агентів та multi-agent workflows
• Будувати agent graphs з використанням LangGraph
• Створювати MVP та production-ready AI systems
• Інтегрувати LLM APIs, external tools та vector databases
• Проєктувати backend architecture на FastAPI + PostgreSQL
• Працювати з async workflows та orchestration systems
• Покращувати reliability та scalability AI systems

• Швидко перетворювати product ideas у working systems

   

✅ Requirements

• Strong Senior-level Python/backend experience
• Відмінне знання FastAPI та PostgreSQL
• Досвід створення AI/LLM продуктів
• Hands-on experience з LangGraph та agentic systems
• Розуміння modular architecture
• Вміння рухатись швидко без overengineering
• Високий рівень ownership

• English — Upper-Intermediate або вище

   

➕ Nice to Have

• React / Next.js
• Temporal
• Qdrant або pgvector
• LiteLLM, Traceloop, Ragas
• Product thinking

• Startup experience

   

🧰 Stack

Python · FastAPI · PostgreSQL · LangGraph · LLM APIs · Qdrant · pgvector · Docker · Turborepo · uv · Temporal

💎 Ми пропонуємо

• Fully remote
• Мінімум бюрократії
• Швидкий процес прийняття рішень
• Сильну AI-focused engineering environment
• Прямий вплив на продукт та архітектуру

• Можливість будувати AI systems від MVP до scale

   

📩 Як податись

Надсилайте:

• Актуальне CV англійською
• Ваш AI / LLM / LangGraph experience
• Telegram link

About us

TeamCraft Roofing (TCR) is a commercial roofing contractor in the US - 300+ employees, projects in 30+ states, Fortune 500 clients. We are building the company's data and AI platform: AI agents in production over live business data, a document-processing service, a storm-response tool for the sales team, plus a data lakehouse and an in-house CRM currently being built.

About the role
You would join the platform team as its dedicated backend engineer, working directly with the core engineering team. The core of the role is the layer connecting our business systems, the data lakehouse, and the AI agents. It's a backend-first role - frontend is a small share of the work, but you shouldn't be blocked by it.

We build with AI coding agents as a normal part of the workflow, and we hold the quality bar anyway: agent-assisted or not, code ships reviewed, typed, and tested.

Responsibilities
- Build and maintain connectors for ERP, CRM, HR, and field-operations data. Not all of these systems have clean APIs - part of the job is making ingestion reliable anyway.
- Design and ship REST APIs (FastAPI) serving AI agents and internal applications
- Implement RAG pipelines for document-based assistants
- Build the service layer of our in-house CRM
- Contribute to the lakehouse build (medallion architecture on Azure)
- Occasionally build or modify an internal UI (Next.js) when the work calls for it

Tech stack
Python (FastAPI), SQLAlchemy, PostgreSQL (complex SQL, JSONB), Redis, OpenAI and Anthropic APIs, Next.js/TypeScript on the frontend, Docker, Azure, GitHub Actions. Claude Code in daily development.

Requirements
- 5+ years of Python backend development
- Strong SQLAlchemy; solid Pandas/NumPy for data processing
- Hands-on RAG or LLM-backend experience that real users touched
- You work with AI coding agents (Claude Code or similar) day to day - and you review what they produce before it ships
- Basic frontend ability: enough JavaScript/TypeScript to make changes in a Next.js/Vite app
- PostgreSQL performance tuning
- Pytest and type hints as a default working style - we hold an 80% coverage bar
- English B2+ for daily calls with the US team

Nice to have
- Azure ecosystem experience
- dbt
- OCR / document processing
- Construction or logistics domain experience

We offer
- 100% remote, long-term engagement
- Direct contract with the US company - no outstaffing, no agency in between
- Small team, short decision paths, real ownership of what you build

- hours overlap with US Eastern time
 

Hiring process
Intro call with the tech team -> technical interview, including a short live session driving Claude Code on a small task -> in some cases, a short paid test task -> offer

Phenomenon Studio is a boutique product design and development agency founded in 2019. We work with teams who’ve outgrown what they’ve built — from venture-backed startups to established market leaders — and own the work end to end: strategy, design, development, and post-launch.

The team of 70+ senior specialists is based in Europe, with entities in the USA, Estonia, and Switzerland, serving SaaS, fintech, healthcare, and EdTech. Across 120+ launches, clients have raised $500M+. Phenomenon is HIPAA-compliant, Nielsen Norman Group UX certified, and a Webflow Experts partner, holding a 5.0 rating on Clutch — and most clients come back for a second project.

Our customer is a GRC (Governance, Risk & Compliance Assessment) platform designed to automate risk assessment, vendor management, and compliance with security standards. It streamlines complex GRC processes by centralizing data, enabling efficient reporting, and reducing manual workload.

The product is used by universities and public sector organizations in the US.

Team: Solution Architect, 2x Backend, 2x Frontend, QA, PM, PO, UI/UX Designer

Requirements:

• 5+ years of commercial backend development experience
• Strong knowledge of Python 3.12+ and async programming (asyncio, async/await patterns)
• Strong hands-on experience with FastAPI (dependency injection, Pydantic, middleware)
• AI-assisted development as a daily practice - everyday, hands-on use of AI coding tools (Claude Code, Cursor, GitHub Copilot, or equivalent)
• Experience building AI agents and using Agent Skills
• Solid experience with SQLAlchemy 2.0 (async), PostgreSQL (asyncpg), and Alembic migrations
• Experience building real-time features with Socket.IO (or equivalent WebSocket frameworks) - rooms, namespaces, auth, scaling across workers
• Experience with Redis and distributed task queues (Celery, or arq/dramatiq)
• Understanding of multi-tenant architectures and data isolation patterns
• Experience with JWT-based auth and role/permission-based access control (RBAC/ABAC)
• Discipline around clean layering - clear separation between routes, services, and repositories (no SQL in the service layer)
• Hands-on experience with AWS (ECS Fargate, RDS, ElastiCache, S3, Secrets Manager, IAM), Docker (multi-stage builds), and Bash
• Experience designing and operating microservices (service boundaries, inter-service communication via internal SDKs, observability)
• Experience with Infrastructure as Code using Terraform (AWS provider, module composition)
• Strong experience writing unit and integration tests (pytest, pytest-asyncio)
• Mentoring and code review experience
• Strong communication skills and experience collaborating with stakeholders
• Upper-Intermediate English level
   

Nice to have:

• Experience with aioboto3 or other async AWS interaction patterns
• Experience scaling WebSocket/Socket.IO deployments (sticky sessions, Redis adapter, horizontal scaling)
• Experience with performance profiling and query optimization at scale
• Experience with CI/CD pipelines (GitHub Actions, GitLab CI)
• Familiarity with uv(Astral) or other modern Python package managers
• Understanding of cybersecurity principles
• Knowledge of security standards (ISO 27000, SOC 2)
• Experience with GRC (Governance, Risk, Compliance) domain

Responsibilities:

• Develop and maintain backend microservices using Python, FastAPI, and async SQLAlchemy
• Use AI tooling daily to accelerate delivery - while owning the correctness, security, and maintainability of everything that ships, regardless of how it was generated
• Design efficient database schemas, write performant queries, and manage schema evolution via Alembic
• Build and maintain real-time features via Socket.IO - event flows, room/namespace design, and reliable delivery under load
• Implement asynchronous workflows using Redis and Celery where appropriate
• Contribute to the microservices architecture - propose improvements for scalability, reliability, and clear service boundaries; consume and evolve internal SDKs for inter-service communication
• Work within a multi-tenant environment - build features that respect tenant isolation and scale across tenants
• Provision and evolve cloud infrastructure on AWS via Terraform (ECS Fargate, RDS, ElastiCache, ALB, IAM), following IaC best practices
• Lead by example through code reviews, mentorship, and adherence to engineering standards (clean layering, tested code, meaningful abstractions)
• Collaborate with team members to align technical implementation with business goals
• Deploy and operate services using Docker and CI/CD pipelines
• Communicate effectively with stakeholders to clarify technical requirements and provide accurate estimations
• Take initiative to identify improvements, propose technical solutions, and contribute ideas that enhance product quality, performance, and security posture

What we offer:

• Remote work format and flexible schedule
• Autonomy in work, opportunity to build processes, and grow within the company
• Individual development plan and annual performance review
• Workshops and playgrounds for continuous learning
• Compensation for subject-matter training
• Corporate English classes
• Access to IT Loyalty Club
• Accounting support
• 18 working days of annual leave
• 7 working days of sick leave and 7 working days of unpaid leave
• All national public holidays off
   

Recruitment process: Recruitment interview — Technical interview — Final interview

 

Job description

About DualEntry

Founded in 2024, DualEntry is one of the world’s fastest-growing AI startups.

At DualEntry, the future of finance is being written today. ERP is one of the largest fintech markets in the world ($220,000,000,000+). Yet, tens of thousands of companies are still using on-premise systems, and the industry has not seen new entrants in more than 30 years.

Our AI-native ERP lets accounting teams achieve more in less time. $5M-ARR businesses to NYSE-listed companies trust DualEntry to automate away manual data entry work with AI. We’re finally making the one-person finance team a reality and putting the pain of legacy ERPs from the 1990’s in the past.

We operate with urgency and ownership. We move fast.

Why This Role Matters Now

Since starting 18 months ago, we’ve raised $100,000,0000+ from world-class investors such as Lightspeed Venture Partners, Khosla Ventures, Contrary Ventures and Google Ventures, as well as more than 20 angel investors who’ve built, scaled, and exited some of the most impactful companies of the last decade.

We got there by moving incredibly fast and hiring an exceptionally sharp, hard-working and deeply committed team from leading tech and accounting companies — Ramp, Meta, Microsoft, Lyft, PwC, Deloitte, J.P. Morgan, Bloomberg, Sage, Xero and Intuit. And some of us don't have a fancy logo on our resume and are here for a shot to prove ourselves.

We’re a small team, growing fast with huge momentum - join early.

This is an intense, hands-on role with full ownership. We expect you to push for excellence and raise the bar.

📍 Location: Remote - this role is available across all countries with 4hr+ overlap for the US ET timezone (NYC HQ)

Where you'll create impact

• You’ll own end-to-end execution for backend systems and infrastructure
• You’ll build APIs, services, and real-time systems handling complex accounting logic
• You’ll collaborate with founders, product, and frontend engineering to turn complex workflows into secure, performant systems
• You’ll design, implement, and ship production-ready features at high speed
• You’ll manage data migrations, scaling challenges, external integrations, and end-to-end reliability
• You’ll drive measurable outcomes that accelerate DualEntry’s product velocity and stability

What sets you up for success

• Hardcore work ethic and high agency
• 8+ years of experience in backend engineering
• Proven track record in high-growth, high-ownership environments
• Strong skills in PostgreSQL, SQL, ORMs, migrations, and schema design
• Experience with AWS or comparable cloud infrastructure
• Strong API design and testing experience
• Understanding of CI/CD, deployment, and production readiness
• Bonus: expertise in Python and modern frameworks (FastAPI, Flask, or Django)
• Ability to manage complex systems with evolving requirements
• Fluent English (C1+) with clear communication

How You Operate

• Pragmatic: you like to move forward and make decisions based in reality (not theory). We don't debate if Cassandra has the most theoretical scalability -- we use Postgres until it breaks
• Hard working: 'You can work long, hard, or smart, but [here] you can't choose two out of three" - Jeff Bezos. We wrote this job post during the weekend
• Curious: you love to learn, are highly curious about new frameworks and solutions to engineering problems
• Fast-moving: you deploy daily, iterate quickly, and never wait for permission

Why you’ll thrive here

• Significant equity ownership in one of the top AI companies in the world
• You’re joining early and will grow with DualEntry
• Your feedback shapes the product directly
• High-speed culture
• High-trust environment with high expectations
• Ambitious mission - ERP is one of the largest B2B software markets in the world ($220bn per year), this is a once in a lifetime opportunity to build the next generation ERP in an industry that has not seen new entrants in 30+ years

Benefits & Perks

• Base Salary: $150,000 - $250,000 USD
• Equity: $50,000 - $80,000 USD
• Contract type: B2B
• Remote-first team - the fastest team you will have ever worked with
• Time Off: 15 PTO days + 12 public holidays
• Visa sponsorship option for relocation to NYC within 2+ years
• Early-stage role with high autonomy and real long-term upside
• Enjoy a learning & development budget for courses, certifications, and language learning to keep growing your skills.
• Work where you feel most productive at co-working spaces or from your home office with support for setup, internet, and phone.
• Plus, wellness perks and more to make your workday even better!

We hire the best, expect the best, and give you the masterclass of your career - an archaic and huge industry like ERP only goes through a restructure like this once in a lifetime. It’s hard, it’s intense, and it’s the most rewarding work you’ll ever do.

If you’re hungry, driven, and ready to build something massive, climb aboard!

At DualEntry, we believe great products come from diverse teams. We’re an equal opportunity employer, and we’re committed to a culture where everyone feels included, supported, and able to do their best work.

We’re looking for a Senior Backend Engineer to join a long-term remote role with one of our US-based clients in the hospitality / hotel tech space.

This is not a pure maintenance role. The team is actively evolving the architecture, improving the product, and building scalable solutions for a growing platform.

The ideal candidate is someone who is strong in Python, comfortable working with TypeScript, and able to make solid technical decisions independently.

Main requirements

• 5+ years of professional experience with Python — Django or FastAPI.
• Strong experience with TypeScript.
• Experience working with Google Cloud Platform — GCP.
• Advanced English level — C1.

• Experience with hotel / hospitality management systems is a strong plus.

   

Technical background we’re looking for

Strong understanding of Object-Oriented Programming, including encapsulation, inheritance, polymorphism, abstraction, SOLID principles, design patterns, dependency injection, and inversion of control.

Experience with software architecture concepts, including MVC / MVVM, RESTful API design, microservices vs monolithic architecture, separation of concerns, modular code organization, and Domain-Driven Design basics.

Good knowledge of data structures and algorithms, including arrays, hash tables, trees, graphs, sorting and searching algorithms, Big O notation, and efficient problem-solving.

Strong focus on code quality and best practices, including Clean Code, DRY, KISS, refactoring, code reviews, documentation, and maintainable development practices.

Experience with performance and optimization, including application performance, database query optimization, caching strategies, profiling and debugging tools, and memory management.

Understanding of security best practices, including OWASP Top 10, authentication and authorization, data validation and sanitization, SQL injection, XSS and CSRF prevention, secure data storage, encryption, and API security.

Solid experience with Git and development workflows, including branching, merging, rebasing, conflict resolution, Gitflow or trunk-based development, pull requests, code reviews, and semantic versioning.

Soft skills

• Ability to work independently and make technical decisions.
• Strong analytical and problem-solving skills.
• Self-motivated and proactive mindset.
• High attention to detail and code quality.
• Good time management and prioritization.
• Continuous learning mindset.

• Strong communication skills in English.

   

Nice to have

• AWS services such as S3 or CloudWatch.
• Oracle Hospitality or similar PMS integration experience.
• Previous experience in hospitality / hotel tech.

Work schedule

The schedule is aligned with Hawaii — HST and Pacific — PST time zones.

Work conditions

• Remote, full-time role.
• Diverse and challenging projects.
• Supportive and collaborative team.
• 12 vacation days per year.
• 5 sick days per year.
• English classes.
• Therapist and psychologist support for mental well-being.

Your Career

As a Backend Engineer within our On-Prem platform team, you play a pivotal role in building a new on-premise platform for running Cortex products - Cortex XSOAR, Cortex XDR, Cortex XSIAM and Cortex Cloud.

You will design and develop an infrastructure that supports billions of events per second, storing, processing and making them accessible and visible to the user while collaborating with the industry’s leading cyber products.

Building a highly available, reliable and secured on-premise platform that performs just as good as the cloud product is a significant challenge. Your crucial role goes beyond development, involving cross-organizational impact collaboration to ensure success.

The great majority of the Cortex engineering group is located in the Santa Clara and Tel Aviv offices allowing us to operate at a high pace.

In this role, you will need to be creative, innovative and demonstrate deep knowledge in Kubernetes, conducting research to find new technologies, with a can-do approach, an internal drive for excellence and improvement, and thrive on bringing value to thousands of customers.

Your Impact

As a Backend Engineer on the team, you will:

• Work on a new product, implement major parts from design to implementation!
• SAAS to on-premise challenge! Building / Enhancing an on-prem platform that will work seamlessly like the SAAS product.
  • Design, build, and optimize data models and queries for speed and scale, using data storage technologies like MySQL and BigQuery
• Who knew? You do! Research new technologies and see how they can be adapted to the product
• Utilize your big-picture perspective to spot existing and impending problems, then work with senior engineers and leadership across the department to analyze and solve them

• Proactively spot, articulate, and mitigate risks in ongoing and planned projects to ensure smooth execution and high output - This may include providing ad hoc mentorship, communicating with project stakeholders, or rolling up your sleeves and stepping in to help move things along

  Kubernetes architecture! Design and implement HA, performance tuning, and disaster recovery strategies for Kubernetes clusters.

  • Design, architect, develop, and maintain Kubernetes architecture product Implement custom Kubernetes operators to automate application lifecycle management and complex deployment scenarios.
  • Automate the deployment and configuration of Kubernetes clusters using infrastructure-as-code (IaC) tools (e.g., Terraform, Ansible) solutions for on-prem Kubernetes clusters and applications.
  • Like CEPH, implements and manages cloud-native persistent storage solutions with Kubernetes clusters.
  • Manage and optimize storage solutions within the Kubernetes environment, including persistent volumes and storage classes.
• Customer First! Provide technical guidance and support to customers deploying our applications in their chosen environments.

Qualifications

Your Experience

• BS/MS in Computer Science or Computer Engineering or related technical degree
• 5+ years of hands-on experience in software backend engineering, with a focus on cloud-native application development, at large organizations or innovative startups
• Strong programming skills in one of Python or Go, with experience in building distributed systems
• Excellent troubleshooting abilities. Isolate issues found during testing and verify bug fixes once they are resolved
• Experience with backend development (Rest APIs, Databases, Serverless computing) of distributed cloud applications
• Strong understanding and applied knowledge of Kubernetes architecture deployments (such as Ansible, Kubespray, Helm, CDK8s, k8s managed and unmanaged) and a variety of Kubernetes distributions such as Rancher Kubernetes Engine (RKE2)
• Experience with database technologies like ElasticSearch, MySQL, BigQuery, cloud technologies like S3, Pubsub, RabbitMQ and caching technologies like Redis.
• Experience with cloud-native storage solutions (e.g. Ceph, Rook) with a Proven ability to develop and manage custom Kubernetes controllers or operators.
• Good understanding of public cloud design considerations and limitations in areas of microservice architectures, security, global network infrastructure, distributed systems, and load balancing with proficiency in at least one cloud provider (AWS, GCP , Azure)
• Strong understanding of principles of DevSecOps, DevOps and Continuous Delivery
• Experience with the agile process and working with software development teams involved with making data-driven decisions for building out full stack products, deployed on the cloud at scale
• Enjoys working with many different teams in a fast-paced environment with strong collaboration and communication skills