Jobs Backend

Who We Are

DevOut Labs is a white-label development team delivering websites for US-based marketing agencies. More info: devoutlabs.com
 

Position Overview

We’re looking for a WordPress Developer to join our remote team.

You’ll be responsible for developing and maintaining WordPress websites, working closely with designers and other developers to deliver high-quality builds.
 

Responsibilities

• Develop and maintain WordPress websites
• Work with ACF to structure CMS fields and flexible content
• Ensure responsive layouts across devices
• Optimize website performance and loading speed
• Debug issues and implement fixes when needed
 

Requirements

• 3+ years of experience with WordPress development
• B2 English level
• Experience with ACF and custom theme development
• Good knowledge of HTML, CSS, JavaScript, and PHP
• Ability to work independently in a remote environment
 

Nice to Have

• Experience with page builders (Elementor or similar)
• Basic understanding of SEO best practices
 

What You Will Get

• Exposure to interesting and technically challenging projects
• Minimal bureaucracy and fast decision-making
• Transparent and fast communication with the team
• Opportunity to grow into React development and AI-related projects
• Salary reviews and career growth based on strong performance and achievements
 

Recruitment Process

1. Initial Interview — up to 20 minutes
2. Test Task
3. Final Interview
4. Offer

Stack: Golang, AWS, MySQL, Docker, Microservices.

We are seeking an experienced Golang Developer to join our team of talented developers for a stable yet dynamic project.

As the Golang Developer, you will play an integral role in developing, maintaining, and refactoring the existing codebase of a multi-service product with complex logic. You will work closely with our experienced Backend team and use the latest stack.

About the project:

A stable enterprise product for creating marketing presentations, preparing accompanying materials, and developing sales cycle business assistants for global pharmaceutical companies such as AstraZeneca, Novartis, Pfizer, Veeva etc., and financial institutions like ING and Van Lanschot. Completely our code base, we have been developing it since 2015.

Our services are distributed across multiple Availability Zones, adhering to a service-oriented architecture. Since 2018, we have prioritized GraphQL, although we maintain comprehensive support for RESTful APIs. Our core API services are built on a diverse stack of programming languages, each chosen to optimize task performance. This stack includes a rapidly evolving Golang Core API, legacy Core API services in PHP (leveraging frameworks like Laravel and Yii2) for established business logic and data layer interactions, Node.js (utilizing both JavaScript and TypeScript), Python APIs, and .NET Core C# components.

We utilize a hybrid cloud infrastructure, harnessing the strengths of both AWS and GCP to meet our operational needs, and focus on Serverless. Our work also involves extensive integration with API partners, including Veeva, Salesforce, and a variety of others, to ensure a seamless and robust service ecosystem.

As a product with high-security requirements, we undergo regular penetration testing from auditors and client companies to ensure compliance with industry standards such as OWASP, SOC, and ISO.

Essentials:

- Advanced knowledge of Golang, with experience in web frameworks such as Gin or Echo.

- Proficiency in developing automated tests using frameworks like Go Testing, Ginkgo, etc.

- Expertise in performance monitoring, optimization techniques, and troubleshooting.

- Strong knowledge of SQL and an understanding of transactions.

- Understanding of OOP, design patterns, cryptography, algorithms, and data structures.

- Versatility and comprehension of how all aspects of a web project work together (frontend, backend, and the network layer).

- Basic System Design skills.

- English reading and writing: Upper Intermediate.

- English speaking: Lower Intermediate.

Nice-to-haves:

- Development experience with Node.js, PHP.

- Knowledge of serverless architectures, especially AWS.

- Experience in building APIs using REST and GraphQL.

- Understanding of EDA, Microservices, Hexagonal Architecture.

- Proficiency in Docker.

- Experience with CI/CD Pipelines.

- Familiarity with agile methodologies (Scrum, Kanban).

- Degree in Computer Science.

- English speaking: Upper Intermediate.

Benefits:

In addition to a great base salary, we offer:

1) Funding for conferences, co-working spaces, software licenses, and other work-related expenses

2) MacBook if you require one

3) Mobile devices if you are involved with mobile development projects

4) Flexible working hours and fully remote working without micromanagement

5) Modern technology stack

6) Time for open source development

7) Bonus at the end of the year

8) Paid study leave

9) Paid English language courses

10) 36 company-paid days off per annum

11) Access to educational streaming services like Pluralsight

12) Input on the development of the company

Our core values:

We are open-minded, humble, respectful, self-driven, and honest, which allows us to create an atmosphere of synergy. Our team is a great fit for those who value self-organization and are passionate about personal growth. If this resonates with you, we’d love to have you join the team.

Delasport — Implementing Technological Solutions Here and Now.
Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are looking for the top talents to join our team in R&D centre in Kyiv.
 

TECHNOLOGY STACK

Microservice architecture, Java 21, Java 25, Spring Boot 3.5+, JPA, JDBC, PostgreSQL, Kafka, Google Cloud Platform, Kubernetes, Docker, Testcontainers, Gradle
 

RESPONSIBILITIES

• Development of new business initiatives, an extension of existing ones
• Taking an active part in improvements and optimizations to the systems
• Resolve technical problems, critical thinking on the development approach
• Be part of a cross-functional team with end-to-end responsibility for the result
   

REQUIREMENTS

• 3+ years of commercial development experience using Java-related technologies
• 1+ years of working experience with API development
• Hands-on experience with microservice architecture
• Ambition to write high-quality code covered with integration tests
• Solid debugging and troubleshooting skills
• Proactive and result-oriented mindset
• Strong problem-solving skills
• Good level of English
   

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

N-iX is looking for a Senior Java Engineer (with Go/Python) to join a collaborative product team of around 8 engineers working on a complex, high-impact software platform. 

You’ll contribute across the stack, building scalable backend services and intuitive frontend experiences, while actively using AI-powered development tools to improve productivity and code quality. The team follows Agile best practices, values clean architecture, ownership, and continuous improvement. As an engineer, you’ll help to develop the platform that serves as an enterprise next-generation endpoint protection (EPP) + endpoint detection & response (EDR) solution that runs on Windows (as well as macOS, Linux, servers, etc.). It comes as a single, unified agent designed to prevent, detect, respond, and remediate cyber threats, including malware, ransomware, fileless attacks, and advanced persistent threats — all in real time.

Responsibilities:

• Design, develop, and maintain backend services
• Collaborate closely with backend, frontend, and QA engineers in an Agile/Scrum environment
• Write clean, testable, and well-documented code
• Integrate and work with APIs, data stores, and third-party services
• Use AI-assisted development tools (e.g., code assistants, testing tools, analysis tools) to improve delivery speed and quality
• Support production systems and participate in troubleshooting when needed

Requirements: 

• 5+ years of extensive software engineering experience
• Proficiency in Java
• Proven expertise in developing large-scale distributed systems and microservices architecture, with a focus on performance, scalability, and reliability
• Experience with cloud platforms (AWS and/or GCP) and Kubernetes (must)
• Experience with Kafka or similar solutions 
• Experience with Python or Go is nice to have. 
• Excellent problem-solving skills
• Strong communication skills and ability to articulate technical concepts and influence engineering direction across teams, departments, and stakeholders
• Upper-intermediate level English 

We are looking for a Python AI Developer to build and scale AI-powered solutions for real-world use cases. This is a hands-on role focused on developing agentic systems, RAG pipelines, and production-grade LLM integrations.

Part-time during the first month

Requirements

• 4+ years of development experience with Python
• Experience building real AI applications 
• Experience with LLM APIs (Claude, OpenAI, etc.)
• Understanding of RAG and AI workflows
• Experience with APIs and integrations
• Basics of prompt engineering
• Good communication skills
• Comfortable working in a fast-paced environment

Nice to have

• Experience with LLM frameworks (LangChain, LlamaIndex, etc.)
• Experience working with clients or enterprise systems

Responsibilities

• Build AI features using LLMs (Claude, etc.)
• Work with RAG pipelines
• Create AI agents / workflows
• Integrate AI into products via APIs
• Collaborate with team and clients

We are currently looking for experienced PHP developer to join our client's project.

Requirements:

• Strong experience with PHP and Symfony
• Mid to senior level expertise
• Solid sense of ownership and responsibility

• Experience with Node.js is a plus (not mandatory)

   

Project Details:

• Start date: ASAP
• Duration: Initial 3-month contract with a strong possibility of extension
• Location: Remote within Europe
  • Working from the Lithuanian office is no longer required

  • Occasional visits to the office would be considered a plus

     

Project details:

• Start: ASAP
• Duration: 3 months guaranteed + likely extension
• Location: Remote (Europe-based)
• Occasional visits to Lithuania are a plus, but not required

About us

Syndicode is a value-driven software development partner with a globally distributed team of engineers, designers, architects and IT managers. We are united by the mission to provide our clients with software products and services that perform, look, and work as designed. 

We believe that our people and culture make Syndicode’s success continuous. Our team is unified by shared principles like: Accountability, Involvement, Excellence, Visibility, Integrity, Innovation, Win-Win, Flexibility. Syndicoders are professionals who pursue self-improvement through continual learning, are eager to introduce improvements to work processes, and are able to analyze a variety of sources to make sound and timely decisions.

If it sounds like you, apply to our jobs and become a new Syndicoder!

 
About the project

Our team is building an internal tool for a major construction company to help their teams design and evaluate complex layouts while accounting for real-world constraints. The product combines robust engineering logic with an interactive 3D view in the browser, making it easier for users to explore design options and estimate key building parameters, including costs. In this role, you’ll work on the mathematical core of the system—refining existing models and developing new algorithms that make the application faster, smarter, and more accurate.

 

What you’ll be doing
 

• Experience: At least 3 years of professional experience in mathematical modeling, algorithm development, or optimization-focused software engineering.
• Mathematical Expertise: Strong foundation in areas such as numerical analysis, linear algebra, calculus, statistics, probability, optimization, and related mathematical disciplines.
• Python: Minimum of 2 years of experience, with expertise in object-oriented programming, data structures, algorithms, and performance optimization.
• Computational geometry for coordinating transformations, polygon operations, or spatial reasoning.
• Analytical Thinking: Strong problem-solving skills with the ability to break down complex challenges into actionable components.
• Attention to Detail: High level of accuracy and precision in developing and validating mathematical models and code.
• Communication: Ability to clearly explain complex mathematical and technical concepts to both technical and non-technical audiences.

• Education: Bachelor’s, Master’s, or Ph.D. in Mathematics, Computer Science, Engineering, or a related quantitative field.
  
  Nice to have
   

  • FastAPI (or similar frameworks): Experience building RESTful APIs and exposing mathematical models and algorithms as scalable web services.
  • AWS: Familiarity with cloud infrastructure services for deployment, scalability, and management of computational resources in production environments.
     
     

  What you'll be doing
   

• Mathematical Model Development: Design, develop, and implement mathematical models and algorithms to solve complex problems in engineering, data analysis, optimization, and related domains.
• Python Software Development: Translate mathematical models and algorithms into high-performance, reliable, and efficient Python code. Ensure clean architecture, solid coding practices, and optimal performance.
• Collaboration: Work closely with cross-functional teams—including developers and domain experts—to understand requirements, troubleshoot issues, and deliver integrated solutions.
• Testing and Validation: Perform rigorous testing and validation of mathematical models and their Python implementations to ensure accuracy, reliability, and efficiency.
• Documentation: Create clear, thorough documentation for models, algorithms, and code implementations.
   

What you’ll get at Syndicode
 

• Fully remote job
• Continuous feedback within teams and departments
• Top-notch team 
• Ability to participate in decision-making and bring new ideas
• Self-management: opportunity to manage your time and plan your activities
• Dynamic fast-growing environment: we react and adapt quickly to the world’s and market changes.

N-iX is looking for Senior Rust Engineer to join the fast-growing team one our projects. 

Our client is a leading European company delivering high-performance platforms for meteorological and geospatial data. Our products handle complex datasets with distributed, scalable systems while ensuring reliability, reproducibility, and adherence to industry standards. 

As a Software Developer for the D2E Platform team, you will focus on building high-performance backend systems and orchestrating distributed data workflows. You will work with meteorological formats (GRIB, NETCDF, GEOTIFF, Zarr), geospatial transformations, and scalable infrastructure, contributing directly to the foundation of our data ecosystem.

Responsibilities:

• Develop high-performance async backend code in Rust (Tokio), managing concurrency and binary data structures.
• Optimize distributed Python workflows with Dask and orchestrate pipelines using Prefect.
• Build and maintain RESTful APIs for high-concurrency, non-blocking access to meteorological and geospatial data.
• Standardize Zarr outputs, ensuring metadata, CRS, and affine transforms are correct for downstream systems.
• Integrate multiple data sources, including radar, nowcasting, ECMWF, and GCP grids.
• Deploy and manage distributed systems on Kubernetes (K8s) and ECS, optimizing container performance and resource allocation.
• Design and extend the Dask “formula” framework for various use cases, collaborating on front-end management interfaces (Node.js).
• Implement event-driven API updates using Prefect + NATS for new data arrivals.
• Ensure high code quality through testing, code reviews, and observability practices.
• Experience with AWS.
• English level at least Upper-Intermediate. 

Requirements:

• Strong Rust expertise - at least 3 years of experience: async programming (Tokio), concurrency, binary data structures.
• Advanced Python experience with distributed processing (Dask, Xarray, Numpy).
• Proven experience building scalable, distributed systems and RESTful APIs.
• Familiarity with meteorological and geospatial data formats (GRIB, NETCDF, GEOTIFF, Zarr).
• Understanding of geospatial projections, CRS, and affine transformations.
• Strong mathematical and analytical thinking for array and matrix manipulations.
• Experience with containerized infrastructure (K8s, ECS) and CI/CD workflows.
• English level at least Upper-Intermediate. 
• Degree in Computer Science, Software Engineering, Mathematics, or related field.

Nice-to-have:

• Experience with Golang or Node.js backend development.
• Familiarity with Prefect workflow orchestration.
• Prior experience with meteorological or geospatial datasets at scale.
• Knowledge of container performance optimization, monitoring, and observability.

Technology Stack:

• Backend: Rust (Tokio), Golang, Node.js
• Python & Data: Python (Dask, Xarray, Numpy, Prefect)
• Infrastructure: Kubernetes (K8s), ECS, CI/CD pipelines
• APIs & Integration: REST APIs, event-driven architectures (Prefect + NATS)
• Data Formats: GRIB, NETCDF, GEOTIFF, Zarr

Frontend/Management Interfaces (collaboration): Node.js

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

Ось вакансія в тому ж стилі:

Chalice LTD is expanding its team and is looking for Senior Rust Developer to join a long-term project in the railway software domain.

The project is a specification-driven initiative focused on modern railway signalling systems, built around the latest ETCS and EULYNX standards. You'll be working on safety-critical infrastructure used across European railway networks — a unique opportunity to contribute to cutting-edge transport technology for 2+ years.

The Client is a railway software company specialising in the design and development of railway systems. Their core products include:

• Gateway — a simple, reliable control adapter for interlocking modernisation using the open EULYNX SCI-CC protocol.
• RaSTA — a C-language library implementing DIN EN 50159 for embedded environments.
• Testing & Simulation Software — state-of-the-art tools supporting EULYNX compliance testing and network-wide simulations.

Responsibilities

• Design and develop safety-critical software components in Rust for railway signalling systems.
• Implement and maintain features aligned with ETCS and EULYNX specifications.
• Collaborate closely with a small, focused team (2 engineers at launch) to deliver high-quality, specification-compliant solutions.
• Participate in architecture and design decisions for embedded and networked railway systems.
• Contribute to testing, validation, and documentation processes in line with industry standards.

Must-haves

• 5+ years of hands-on experience with Rust in production environments.
• Strong understanding of systems-level and embedded programming.
• Ability to work closely with formal technical specifications.
• Solid communication skills and ability to collaborate in a distributed team.

Nice-to-haves

• Experience in railway signalling systems (ETCS, EULYNX, interlocking systems).
• Familiarity with EN 50126 / EN 50128 safety process standards.
• Background in safety-critical or embedded software development.
• Knowledge of the EULYNX SCI-CC protocol or RaSTA/DIN EN 50159.

🟢 At Dev.Pro, we work on projects that impact millions of people around the world — but we know it’s the people behind the tech who make it all happen. We truly value what makes each person unique and are building a workplace that’s inclusive, friendly, and supportive.

We invite a Full-Stack Software Engineer with strong PHP and JavaScript skills, as well as hands-on WordPress experience, to join our Process & Automation department at Dev.Pro. In this role, you’ll work across a diverse portfolio of projects, from building front-facing websites to developing complex internal automation tools and integrations. You’ll collaborate with cross-functional teams to deliver high-impact solutions that improve both user experience and our internal operations.

🟩 What’s in it for you:

• Build solutions from scratch and see the real impact of your work through direct feedback from end users
• Thrive in a role that blends creative development with technical problem-solving in a fast-paced, collaborative environment
• Work across multiple projects, gaining expertise in a diverse tech stack (WordPress, PHP, JavaScript, REST APIs, MySQL)

✅ Is that you?

• 2+ years of full-stack web development experience
• Strong PHP (8.x) skills with solid OOP fundamentals
• Ability to design efficient solutions for complex data processing
• Experience developing custom WordPress themes and plugins
• Hands-on experience with WordPress Actions and Filters
• Experience with REST APIs, including WordPress REST API and third-party integrations
• Understanding of HTTP methods and secure service communication
• Proficiency in MySQL, including custom queries and data management in WordPress/custom tables
• Understanding of table relationships and data storage basic principles
• Working knowledge of JavaScript (DOM manipulation, events, AJAX/Fetch requests)
• Strong HTML, CSS, and SASS skills, and understanding of semantic structure for SEO
• Experience with Flexbox, CSS Grid, and responsive design
• Understanding of web and WordPress security best practices
• Experience with Git for version control
• Strong communication and collaboration skills
• Ability to manage multiple priorities and switch between tasks quickly
• Comfort working in a fast-paced, changing environment
• Intermediate+ English level

Desirable:

• Experience with Docker
• Experience with GCP services

🧩Key responsibilities and your contribution

In this role, you’ll work across multiple projects, building new solutions from scratch while also providing ongoing support and operational maintenance for existing services.

• Develop and maintain WordPress websites, landing pages, and internal platforms
• Design and implement integrations with third-party APIs and internal services
• Support and enhance existing systems, ensuring stability, performance, and reliability
• Help automate key internal business processes and workflows
• Develop new features for internal tools and contribute to rebuilding core platforms
• Collaborate with cross-functional teams to translate business needs into scalable technical solutions
• Participate in daily stand-ups to align on progress, priorities, and blockers
• Take part in planning, grooming, estimation, and design review sessions
• Contribute to bug analysis and retrospectives to identify improvements and lessons learned

🎾 What’s working at Dev.Pro like?

✔️ 30 paid days off each year — use them for vacation, holidays, or personal time
✔️ 5 paid sick days, up to 60 days of medical leave, and 6 paid days off for major family events like weddings, funerals, or the birth of a child
✔️ Fully covered health insurance, plus a wellness bonus for things like gym memberships and sports gear
✔️ Grow your career with English classes, online courses, conferences, and the chance to explore new roles
✔️ Support for pregnancy, maternity leave, and military service
✔️ Fun virtual events and team-building activities to stay connected
✔️ Full support for your tech, workspace setup, and accounting needs — we’ll make sure you’re equipped to do your best work

Our next steps:

✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Interview — ✅ Offer

We’re looking for a QA who owns backend quality: payments, subscriptions, and critical flows.
Not a checklist tester. You should understand where things break and catch issues early, ideally before they happen.
 

What you’ll be doing

• Test mobile apps (iOS) and web2app funnels
• Validate checkout flows and payments (end-to-end)
• Test backend APIs (payments, subscriptions, auth)
• Verify core functionality (UI, buttons, user flows)
• Work with webhooks and async processes
• Cover edge cases (failed payments, duplicates, delays, sync issues)
• Analyze logs and debug backend-related issues
• Write test cases and bug reports
• Perform regression testing before releases
• Write automated tests where needed

Requirements

• 4+ years QA experience 
• Mobile (iOS) and/or web testing experience
• Strong experience with payments, checkout flows, subscriptions
• Backend / API testing (Postman, Swagger)
• Experience with:
  • webhooks / async flows
  • logs analysis & debugging
  • payment edge cases
• Understanding of:
  • client-server architecture
  • interaction between frontend, backend, and payments
• Ability to test end-to-end flows (user → payment → access)
• Automation experience (JS / Python / Java)
• Experience with Stripe or similar systems
• Basic SQL, CI/CD, event-driven systems

What we expect

• You think in funnels and user flows, not just screens
• You understand that QA impacts revenue
• You focus on edge cases, not only happy path
• You can work independently, solo and dig into systems
• You take ownership of product quality

What we offer

• Work on a real product with direct impact on revenue
• Ownership of backend and payment systems
• Remote work and flexible schedule
• Fast product iterations without unnecessary bureaucracy
• Strong product team and engineering culture

iPay.ua — a nationwide online payment and transfer service in Ukraine that allows users to pay for goods and services at over 2,000 merchants using payment cards.
We are one of the leaders in the online payments industry. Every day, we process over 76,000 payments, with more than 27 million transactions completed in 2025. Learn more about us, our mission, values, and goals on our site.
Now we find a Senior PHP Developer.

Наразі ми шукаємо Senior PHP Developer (Backend-focused, React.js as a plus) до нашої команди.

Requirements

— Backend (core focus):
Strong experience with PHP 7/8 (Laravel or similar frameworks). Ability to work with legacy code and improve it safely.
— System thinking:
Experience with high-load or mission-critical systems (payments, fintech, or similar). Understanding of performance bottlenecks, consistency, and failure scenarios.
— Databases:
Strong MySQL skills: query optimization, indexes, working with large datasets (10M+ records).
— Architecture:
Solid understanding of OOP, SOLID, and practical design patterns (not textbook cosplay).
— API design:
Experience building and maintaining REST APIs.
— DevOps basics:
Git, CI/CD, basic Docker usage, understanding of production environments.
— Frontend (secondary):
Experience with React.js is required at a practical level (understanding architecture, ability to support or launch features), but this is not a frontend-heavy role.

Nice to Have

— Experience with payment systems or fintech
— Understanding of PCI DSS / security basics
— Experience with observability (logs, metrics, tracing)
— Experience working with legacy systems under load

Responsibilities

— Work hands-on on backend logic and critical payment flows
— Improve and stabilize existing system (performance, reliability, edge cases)
— Design and implement new features and APIs
— Participate in architectural decisions (practical, not theoretical)
— Support integrations with external partners (banks, PSPs, etc.)
— Help team with code reviews and knowledge sharing

Want to work at the cutting edge of modern technology and artificial intelligence? We have something just for you.

We are looking for a Node.js engineer who is not only confident in backend development but also has a genuine interest in AI integrations, LLM agents, and new automation technologies. This role involves participating in the creation and development of AI assistants, platforms, and interfaces that help businesses be more efficient.

What to expect:

• Regular technical challenges — a new case from a customer every week
• Flexible use of AI tools (OpenAI API, WhatsApp/Telegram API, OCR, N8N, scrapers)
• Hands-on experience with workflow automation platforms, particularly N8N, for creating complex business process automations
• Building end-to-end AI workflows that connect multiple services and APIs
• Opportunity to experiment with emerging AI technologies and automation tools as they become available

Our main requirements are:

• Experience in hands-on programming 3+ years
• Experience doing Node.js (Vanilla/Typescript)
• Experience with NestJS also and/or NextJS and/or Express
• Strong creating with SQL/NoSQL databases efficient design from scratch as well as performing optimizations
• Strong knowledge in Computer Science: data types, data structures, algorithms
• Being proficient working on modern tech stack: Docker, Kubernetes, CI/CD, IaC (e.g. Terraform), Ansible etc.
• Having a wide strong background working with AWS (smth beyond EC2 and S3)
• Understanding and applying software design principles
• Experience designing software systems (distributed, high availability, resilient)
• Comfortable working Agile and Design Thinking (however understanding that pure Agile is a myth)
• Being comfortable in several projects at once (taking apart hands-on aspect)
• Strong communication skills in English (B2 and better)
• Willingness and enthusiasm to learn workflow automation tools (especially N8N) and adapt to rapidly evolving AI technologies

Will be considered as a plus:

• Experience with modern SPA frameworks like React/Vue.js/Angular
• Experience with NestJS
• Experience writing technical documents, tracking technical debt, understanding refactoring etc.
• Experience working with AI libraries and/or 3rd parties like chatGPT, Claude, Gemini or Perplexity
• Previous exposure to workflow automation platforms (N8N, Zapier, Make.com, or similar)
• Experience with RAG implementations, vector databases, or knowledge management systems
• Familiarity with MCP (Model Context Protocol) or similar AI integration standards
• Understanding of prompt engineering and AI agent behavioral design
• Experience building conversational AI interfaces or chatbots

Hiring process:

• HR interview: we’ll talk about your professional background, the specifics of the position we are offering, and address any questions you might have.
• Tech interview: a deeper look into your technical expertise and problem-solving approach, ensuring your skill set aligns with our project’s needs.
• Interview with the C-Level: a conversation focused on the company’s vision, strategic goals, and how your role aligns with them.
• Feedback
• Job offer

What we offer at iForAI:

• Hardware Policy: Get the gear you need, from laptops to PCs.
• Referral Bonus: Invite talent and earn a generous reward.
• Professional Growth: We cover courses and books to fuel your expertise.
• Tasty Perks: Free lunches, snacks, tea, and coffee to stay energized.
• Birthday & Celebrations: Gifts on your day, plus parties and team-building.
• Life Events Support: Wedding bonuses, childcare support, and more.
• Volunteering Days: Extra days off to help your community.
• Work-Life Balance: 18 paid vacation days, 10 paid sick days, and national holidays off.

We are hiring a Senior Full Stack Developer for an Israeli deep tech company building a cloud-native platform for monitoring critical infrastructure at scale.

The product enables utilities, energy companies, and infrastructure operators to detect threats, anomalies, and operational events in real time across thousands of kilometers of pipelines, power lines, railways, and perimeter assets.

The platform processes continuous streams of acoustic sensor data from distributed fiber optic networks, applies machine learning classification, and delivers actionable alerts through a smart command and control interface. It integrates with SCADA systems, Digital Twins, and other enterprise environments.

The frontend is a critical part of the system, serving as the main interface for maps, dashboards, real-time alerts, and operational workflows used daily by field teams and enterprise clients.

The system is cloud-native, built with Next.js and NestJS in TypeScript, running on AWS with Kubernetes and Docker. The product is already live and used by enterprise customers across multiple industries.

In this role, you will work across the stack, with a strong focus on frontend development, owning features end to end from architecture through production.

Responsibilities

• Design and implement scalable, high-performance web applications end to end

• Build modern, responsive, and user-centric frontend applications using Next.js

• Architect and develop backend services and APIs with NestJS

• Own frontend-heavy features from concept to production

• Work closely with product, R&D, and domain experts to translate complex data into intuitive UI/UX

• Leverage modern AI tools to improve development speed and code quality

• Participate in technical discussions and contribute to key architectural decisions

• Optimize performance, reliability, and security across the stack

• Mentor developers and promote engineering best practices

Tech Stack

• Full stack: Next.js, NestJS (TypeScript)

• Frontend: Chakra UI or shadcn, modern component-driven architecture

• Testing: Cypress

• Infrastructure: Kubernetes, Docker, CI/CD

• Database: SQL or NoSQL

• Cloud: AWS (Lambda, ECS or EKS, S3, RDS)

Requirements

• 5+ years of experience as a Full Stack Developer

• Strong hands-on experience with frontend development, especially Next.js and React ecosystem

• Experience building complex, data-heavy user interfaces

• Experience with Chakra UI or shadcn

• Experience with Cypress or similar testing frameworks

• Solid understanding of system design, scalability, and cloud architecture

• Hands-on experience with AWS in production environments

• Experience with Docker and Kubernetes

• Fluent in English with strong communication skills

• Experience in startup or fast-paced environments

• Strong ownership mindset and problem-solving skills

AI and Modern Engineering Expectations

• Active use of AI-powered development tools such as Claude Code, Code Rabbit, or similar

• Ability to use AI to accelerate development, improve code quality, and enhance product capabilities

Nice to Have

• Experience with microservices architecture

• Experience with Python and Dash

• Background in performance optimization and distributed systems

This is a long-term opportunity to work on a technically advanced product with real-world impact, large-scale infrastructure, and a strong engineering culture within one of Israel’s leading deep tech companies.

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: $100,000 – $175,000 USD
• Equity: $75,000+ 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.