Backend Developer at Z21tech · Ahmedabad · 3 - 5 years · ₹10L - ₹15L / yr · Profitable · Posted 21 Jul 2022
Responsibilities:
- The candidate will get an opportunity to work on AI/ML technologies using NodeJS for web applications.
- Deliver high-quality code in a fast-paced customer-facing product.
- Specify, design, and implement the functionality and behaviors of the web infrastructure.
- Be involved in the full life-cycle of development from concept through integration, test, and high web traffic deployments.
- Interface with the firmware team as well as clients and end-users of the products.
- API development using REST JSON/XML, and security standards like OAuth.
Requirements:
- BTech or MTech in Computer Engineering, Computer Science, or other similar majors.
- Experience building products with full-stack technologies, and an excellent understanding of computer science fundamentals, data structures, and algorithms.
- Must have experience in version control systems like GIT.
- Strong in NodeJS, MySQL, MongoDB, Kafka, Elasticsearch.

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Software Engineer
Company Summary :
As the recognized global standard for project-based businesses, Deltek delivers software and information solutions to help organizations achieve their purpose. Our market leadership stems from the work of our diverse employees who are united by a passion for learning, growing and making a difference. At Deltek, we take immense pride in creating a balanced, values-driven environment, where every employee feels included and empowered to do their best work. Our employees put our core values into action daily, creating a one-of-a-kind culture that has been recognized globally. Thanks to our incredible team, Deltek has been named one of America's Best Midsize Employers by Forbes, a Best Place to Work by Glassdoor, a Top Workplace by The Washington Post and a Best Place to Work in Asia by World HRD Congress. www.deltek.com
Business Summary :
The Deltek Engineering and Technology team builds best-in-class solutions to delight customers and meet their business needs. We are laser-focused on software design, development, innovation and quality. Our team of experts has the talent, skills and values to deliver products and services that are easy to use, reliable, sustainable and competitive. If you're looking for a safe environment where ideas are welcome, growth is supported and questions are encouraged – consider joining us as we explore the limitless opportunities of the software industry.
Position Responsibilities:
- Collaborate with the development team to maintain, enhance, and scale the product for enterprise use.
- Design and develop scalable, high-performance solutions using cloud technologies and containerization.
- Contribute to all phases of the development lifecycle, following SOLID principles and best practices.
- Write well-designed, testable, and efficient code with a strong emphasis on Test-Driven Development (TDD), ensuring comprehensive unit, integration, and performance testing.
- Ensure software designs comply with specifications and security best practices.
- Contribute ideas to improve application maintainability and performance under the guidance of senior engineers.
AI-Specific Responsibilities:
- Integrate AI-powered tools and frameworks to enhance code quality and development efficiency.
- Utilize AI-driven analytics to identify performance bottlenecks and optimize system performance.
- Implement AI-based security measures to proactively detect and mitigate potential threats.
- Leverage AI for automated testing and continuous integration/continuous deployment (CI/CD) processes.
- Support the adoption and effective use of AI agents for automating repetitive development, deployment, and testing processes within the engineering team.
Qualifications :
- 2-3 years of software engineering experience, including at least 1 year of hands-on AI/ML experience.
- Proficient in Node.js and TypeScript/React development, with experience in React 18+, Hooks (useState, useEffect, useContext), and WebSocket clients.
- Strong full-stack development experience with modern web technologies.
- Experience with ASP.NET Core (C#) is good to have.
- Experience developing REST APIs.
- Proficiency in front-end technologies (JavaScript, HTML, CSS, Bootstrap, and UI frameworks).
- Strong knowledge of cloud platforms (AWS preferred), including scalability and enterprise cloud.
- Experience with security best practices in web and API development.
- Experience with Test-Driven Development (TDD).
- Strong database experience, focused on query optimization
- Strong analytical skills, problem-solving abilities, and curiosity to explore new technologies.
- Ability to communicate effectively, including explaining technical concepts to non-technical stakeholders.
- High commitment to continuous learning, innovation, and improvement.
AI-Specific Qualifications:
- Practical experience with prompt engineering and LLM response optimization
- Knowledge of AI-driven development tools and platforms such as Claude Code, GitHub Copilot in Agentic Mode.
- Knowledge of AI-based security protocols and threat detection systems.
- Experience integrating GenAI or Agentic AI agents into full-stack workflows (e.g., using AI for code reviews, automated bug fixes, or system monitoring).
- Demonstrated proficiency with AI-assisted development tools and prompt engineering for code generation, testing, or documentation.
Role Description
Software Engineer is a full-time role based in Hyderabad with Onsite work arrangement. This role involves designing, developing, and maintaining back-end services and APIs, ensuring high performance, scalability, and security across platforms. The engineer will participate in architecture discussions, code reviews, and technical decision-making, collaborating closely with product owners, QA, and cross-functional teams. Daily responsibilities include writing clean, maintainable code, troubleshooting complex issues, improving system performance, and contributing to best practices, documentation, and engineering standards. The role also includes mentoring less experienced engineers and supporting continuous improvement in development processes and tooling.
Key Requirements/Skills
4-7 years of overall experience in software development with strong expertise in building scalable web & mobile applications.
- Strong technical decision-making ability, including architecture design, technology selection and implementation of best practices.
- Front-end expertise: Strong experience in React, JavaScript, TypeScript, NextJS and building responsive and user-friendly UI/UX.
- Back-end development: Hands-on experience with Node.js, Express JS, Nest JS, RESTful APIs, API design, and server-side architecture.
- Databases : Good Hands on Exprience in both SQL(PostgreSQL Preferred) & No SQL Databases
- Gen AI Expertise: Experience in building RAG & LLM Systems, implementing AI/ML models and integrating AI-based solutions to solve business problems. Expereince with Langchain, langgraph and Vector DBs, Voice AI(STT, TTS) Models and experience in using Open AI Tools (Calude, Cursor, etc.)
- Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
- Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
- Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
- Strong communication skills to effectively interact with technical and non-technical stakeholders.
- Experience working in high-compliance environments such as healthcare systems is a plus.
- Certifications in AWS & Other skills and technologies will be an added advantage.
Educational Qualification
- B.Tech / M.Tech in CSE/IT/AI&ML only from a recognized university/college.
About the Job -
We have always been in the spotlight for being adeptin “the next big technologies”. What we can offer you is a space to explore varied technologies and quench your techie soul. We are looking for Developer skilled in technologieslike Node.js and AWS who also holds experience with user-interface design.
Responsibilities: ● The full stack developer will be responsible for design and development of scalable and flexible web applications and creating API to connect to databases and applications from back-end to client-side code, using optimal and efficient technologies, frameworks, and patterns.
● Take responsibility for design, implementation and maintain existing development ecosystem, including bugs – fixing, design and develop new custom components to meet project requirements.
● Working with other developers and software engineers to develop front-end and back-end architecture that's well-structured and flexible, along with the APIs to support it.
● Install and configure server environments for React deployments maintain and update project dependencies as well as fix any conflicts.
● Responsible for regular communication with developer team involved in the development process and testing of new features in the application
● Analyzing requirements and designing new functionality for new projects with cutting edge technology with research on optimization and new features for the existing product by ensuring a required level of performance.
● Candidate must be abreast with latest technologies and trends, relevant standards should be able to work effectively in a multidisciplinary, multinational team environment focused on innovation with comfortable working on a range of problems.
Desired Competencies(Technical/Behavioral Competency) – Must Have-
● Nodejs, MongoDB, Socket.IO and Redis.
● Proficient in Node.js and MongoDB and working knowledge of JavaScript, JQuery, HTML, CSS, frameworks (Angular.js, React.js)
● Experience with Unix/Linux or Windows and/or Mac environments, distributed systems
● Excellent practical knowledge of OOP concepts and SOLID principles ● Microservices and agile development
● Hands-on experience with cloud (AWS) development/hosting.
● Experience with Web services development (SOAP, REST)
● Strong in Object Oriented Programming, MVC, Design patterns and SOLID principles.
Skills Required:
- Node.js
- MongoDB
- Angular
- API optimization
- Micro Services
- Multi threading
- Socket.io
Key Requirements / Skills
- 6+ years of overall experience in software development with strong expertise in building scalable web applications.
- 2+ years of experience as a Technical Lead, managing development teams and driving project delivery.
- Strong technical decision-making ability, including architecture design, technology selection, and implementation of best practices.
- Front-end expertise: Strong experience in React, JavaScript, TypeScript, and building responsive and user-friendly UI/UX.
- Back-end development: Hands-on experience with Node.js, RESTful APIs, API design, and server-side architecture.
- Gen AI Expertise: Experience in building RAG & LLM Systems, implementing AI/ML models or integrating AI-based solutions to solve business problems.
- Cloud & DevOps exposure: Experience with AWS/Azure, understanding of CI/CD pipelines, and cloud-based deployments.
- Code quality & best practices: Experience in code reviews, Git version control, and ensuring maintainable and secure code.
- Team leadership: Ability to mentor developers, guide technical discussions, and collaborate across teams.
- Strong communication skills to effectively interact with technical and non-technical stakeholders.
- Experience working in high-compliance environments such as healthcare systems is a plus.
Education Qualifications:
- B.Tech/M.Tech in CSE/IT/AI/ML from a good university
Total Experience: 4+ years
Mode of Hire: Permanent
Required Skills Set (Mandatory): HTML, JavaScript, Node.js, Express.js, MongoDB, React/Next.js, AI Integration (LLMs/APIs - OpenAI, Anthropic, Gemini)
Desired Skills (Good if you have): Cloud Platforms (AWS), System Design, Application Security
What is the role all about?
We're hiring full-stack engineers who build with AI, not the traditional way. You should be fluent in modern web engineering, primarily Node.js, and just as fluent in using LLMs and AI tools (Cursor, Claude Code, and similar) to ship fast. Work that once took a month should take a week; what took a week should take a day.
The role spans a range, from architecting backends for non-trivial products like assistants and agents, to rapidly turning a requirement into a clean, customer-facing app or MVP. Be strong in at least one area, be comfortable across the system as a whole, and tell us where you're strongest so we can place you accordingly.
What will you do?
- Plan, build, and ship product features end-to-end, with AI embedded where it has the most impact.
- Integrate LLMs and AI APIs into production-grade applications.
- Use AI tools to prototype, build, and deliver at high speed without sacrificing quality.
- Design scalable APIs and data models with Node.js, Express.js, and MongoDB.
- Build responsive, performant, customer-facing interfaces with React/Next.js.
- Contribute to design discussions, code reviews, and architectural decisions.
What are we looking for?
AI leverage:
- You've shipped real things using LLMs or AI APIs and instinctively reach for AI to move faster.
- Comfortable with prompt engineering and judging AI output for production-readiness.
Engineering depth and delivery:
- Solid fundamentals: problem-solving, data structures, and how systems fit together.
- At least 2+ years across frontend (React/Next.js), APIs (Node.js/Express.js), and databases (MongoDB).
- You write clean, production-grade code and you ship.
- Knowledge of application security or ethical hacking is an advantage.
Culture
- Work with performance-oriented teams driven by ownership and passion.
- Learn to design systems for high accuracy, efficiency, and scalability.
- No strict deadlines, focus on delivering quality work.
- Meritocracy-driven, candid culture. No politics.
- Very high visibility regarding which startups and markets are exciting globally.
About Tracxn
Tracxn (Tracxn.com) is a Bangalore-based product company that provides a research and deal-sourcing platform for Venture Capital, Private Equity, Corp Dev, and professionals in the startup ecosystem.
We are a team of 800+ working professionals serving customers across the globe. Our clients include Funds such as Andreessen Horowitz, Matrix Partners, and GGV Capital, as well as Large Corporates such as Citi, Embraer & Ferrero.
Founders
- Neha Singh (ex-Sequoia, BCG | MBA - Stanford GSB)
- Abhishek Goyal (ex-Accel Partners, Amazon | BTech - IIT Kanpur)
About Technology Team
Tracxn's Technology team is 50+ members strong and growing. The technology team is subdivided into multiple smaller teams, each of which owns one or more services/components of the technology platform. Ours is a young team of motivated engineers with a minimal management structure, in which almost everyone is actively involved in technical development and design. We have a team-centric culture where ownership and responsibility for a feature or module lie with a team rather than an individual.
We work on an array of technologies, including but not limited to ReactJS, Next.js, Storybook, Webpack, Node, Mongo, AWS Lambda, Spring, Elastic Stack, MySQL, Kafka, Redis, Ansible, etc.
We value ownership, continuous learning, consistency, and discipline as a team.
We are looking for an experienced Senior Full-Stack Developer to join our engineering team in Hyderabad. This is a hands-on role for someone with strong experience in Node.js, Angular, PHP, MySQL, and Redis, along with working knowledge of Python, API development, automation testing, third-party integrations, and modern engineering practices.
The ideal candidate should be comfortable owning features end-to-end across frontend, backend, APIs, databases, integrations, testing, and production support.
Key Responsibilities
· Design, develop, test, and maintain scalable web applications using Node.js, Angular, PHP, MySQL, and Redis.
· Build and integrate REST APIs, third-party platforms, external services, and multiple service providers.
· Work with Postman for API development and testing, Playwright for end-to-end automation testing, and Python for scripting or supporting services.
· Troubleshoot application, API, database, integration, and production issues.
· Participate in technical design, architecture discussions, code reviews, and mentoring.
· Write clean, secure, maintainable, and well-tested code with a focus on performance and scalability.
Required Skills & Experience
· 5+ years of professional software development experience.
· Strong hands-on experience with Node.js, Angular, TypeScript, PHP, MySQL, and Redis.
· Strong experience with REST APIs, third-party integrations, external systems, authentication, and API security.
· Good working knowledge of Python, Postman, Playwright, Git, HTML, CSS, and JavaScript.
· Experience with database design, SQL optimization, caching, debugging, unit testing, and production troubleshooting.
· Good understanding of software architecture, application security, performance, scalability, and maintainability.
· Strong problem-solving, ownership, and communication skills.
AI-Assisted Development
We are looking for developers who actively use modern AI tools such as GitHub Copilot, ChatGPT, Claude, Cursor, or similar tools to improve development speed and quality.
Candidates should be comfortable using AI for coding, refactoring, debugging, testing, understanding existing codebases, API/SQL development, documentation, code reviews, and automating repetitive tasks, while maintaining strong engineering judgment, security, and code quality.
Good to Have
Experience with CI/CD, AWS/Azure, microservices, Linux, and monitoring/logging tools would be an advantage.
What We Are Looking For
We are looking for a strong hands-on engineer who can independently own technical problems, work across the full stack, contribute to architecture decisions, and collaborate effectively with an international team.
The candidate must be willing to work from our Hyderabad office during UK business hours.
About the Role
We are looking for passionate and driven interns across multiple technology domains including Frontend Development, Backend Development, DevOps, AI/ML, and Data Engineering. This internship offers hands-on experience in real-world projects, collaboration with cross-functional teams, and exposure to modern tools and technologies.
Domains & Responsibilities
Frontend Development
- Build responsive and user-friendly web interfaces
- Translate UI/UX designs into functional applications
- Optimize performance and ensure cross-browser compatibility
Backend Development
- Develop APIs and server-side logic
- Work with databases and data storage solutions
- Ensure application security and performance
DevOps
- Assist in CI/CD pipeline setup and automation
- Manage deployments and cloud infrastructure
- Monitor system performance and reliability
AI / Machine Learning
- Develop and train ML models
- Work on NLP, automation, or AI-driven features
- Analyze datasets and evaluate model performance
Data Engineering
- Build and maintain data pipelines (ETL/ELT)
- Ensure data quality and availability
- Work with large datasets and optimize data workflows
Required Skills (Any Domain)
- Frontend: HTML, CSS, JavaScript, React/Vue/Angular
- Backend: Node.js / Python / Java / PHP, APIs, databases
- DevOps: Linux, Git, CI/CD basics, cloud fundamentals
- AI/ML: Python, ML basics, TensorFlow/PyTorch/Scikit-learn
- Data Engineering: SQL, Python, data processing concepts
Good to Have
- Knowledge of Git and version control
- Basic understanding of cloud platforms (AWS/Azure/GCP)
- Problem-solving mindset and willingness to learn
- Exposure to real-world or academic projects
Who Should Apply
- Students or recent graduates in Computer Science, IT, or related fields
- Candidates with strong interest in any of the above domains
- Self-learners with project experience are highly encouraged
Internship Details
- Duration: 3–6 months
- Mode: Remote
- Certificate + PPO (Pre-Placement Offer) based on performance
What You’ll Gain
- Hands-on experience with real projects
- Mentorship from experienced professionals
- Exposure to industry tools and workflows
- Opportunity to convert to a full-time role
Roles & Responsibilities
- Write, review and merge production code across Vue.js frontend and Node.js backend
- Own code quality for the India team — set review standards and refactor technical debt
- Debug across the full stack — from Vue rendering issues to Mongo aggregations to Kubernetes pod issues
- Guide the team on day-to-day development decisions and step in on unsolved problems
- Design solutions for new modules from spec to schema to API contract to implementation
- Own MongoDB data modelling decisions — document structure, embedding vs referencing, index strategy
- Review Node.js service design: API structure, error handling, validation, authentication, rate limiting, background processing
- Make and document build-vs-buy calls on third-party services with cost and integration effort
- Ensure the platform stays stable and performant on a live, revenue-generating system
- Demonstrate daily working use of AI coding tools and spec-driven development practice
- Judge AI output quality and know when tasks should not be handed to agents
- Set up and maintain repo-level context files and make the team's AI setup consistent
- Coach the team on AI tools while holding the line on quality
- Work with LLM APIs, embeddings, semantic search and understand where AI features help
- Run sprint planning, estimation, standups and retros for the India team
- Break requirements into technical tasks with clear acceptance criteria
- Track velocity and flag slippage and blockers early
- Own release coordination — deployment planning, rollback strategy and post-release monitoring
- Line-manage 6–10 engineers across web, mobile and QA — 1:1s, feedback, performance conversations and growth planning
- Mentor mid-level engineers into senior ones and build depth
- Participate in hiring — technical screening, interviewing and onboarding
- Keep the team's engineering practices consistent: documentation, testing, branching, incident handling
- Act as the main technical point of contact between the India team and the UAE office product and business stakeholders
- Communicate clearly to mixed technical and non-technical audiences — status, risk, trade-offs and time cost
- Manage the time-zone gap with structured overlap hours, written updates and async documentation
- Own technical delivery on modules including product catalogue, pricing, ordering, workflows, order management, payments, invoicing and vendor onboarding
Ideal Candidate
1Strong Hands-On Technical Team Lead Profile (Vue.js + Node.js) with AI-assisted development and B2B e-commerce exposure2Mandatory (Experience) - Must have 8+ years of software engineering experience with at least 2+ years leading a team of 5 or more engineers3Mandatory (Tech skill 1): Must have strong, current, hands-on Vue.js experience including component architecture, state management and performance optimisation4Mandatory (Tech skill 2): Must have strong, current, hands-on Node.js and Express experience for production API development at scale5Mandatory (Tech skill 3): Must have deep MongoDB experience including aggregation pipelines, index design, query performance tuning and schema decisions6Mandatory (Tech skill 4): Must have AWS experience particularly Kubernetes/EKS with deployments, resource limits, health probes and production monitoring7Mandatory (Tech skill 5): Must have working understanding of Flutter including widget architecture, state management, platform channels and Play Store/App Store release pipelines8Mandatory (Tech skill 6): Must have demonstrable, daily professional use of AI coding tools (Claude Code, Cursor, GitHub Copilot, Gemini CLI or equivalent) with real examples9Mandatory (Tech skill 7): Must have experience with spec-driven development including writing structured requirement and design documents and reviewing AI-generated output against acceptance criteria10Mandatory (Tech skill 8): Must have experience setting up and maintaining repo-level context files, rules files and custom commands for AI development11Mandatory (Tech skill 9): Must have Git and CI/CD experience including branching strategy, review workflow and automated pipelines12Mandatory (Leadership): Must have line-managed engineers (1:1s, feedback, performance, growth), mentored mid-to-senior, and participated in hiring13Mandatory (Communication): Must communicate clearly to mixed technical/non-technical audiences and manage a time-zone gap with structured overlap and async documentation (works with the UAE office)14Mandatory (Education): Bachelor's or Master's in Computer Science, Engineering or related field15Mandatory (Domain): Background in B2B e-commerce, wholesale/distribution or marketplace platforms16Preferred (Offshore Experience): Experience working as the offshore technical counterpart to an overseas leadership team17Preferred (AI Integration): Experience integrating LLM APIs into a production product18Preferred (Observability): Exposure to observability tooling such as CloudWatch, Datadog or Sentry and analytics instrumentation19Preferred (Third-party Integrations): Experience with payment gateways, e-signature, logistics APIs, mapping and geolocation integrations
Total Experience: 4+ years
Mode of Hire: Permanent
Required Skills Set (Mandatory): HTML, JavaScript, Node.js, Express.js, MongoDB, React/Next.js, AI Integration (LLMs/APIs - OpenAI, Anthropic, Gemini)
Desired Skills (Good if you have): Cloud Platforms (AWS), System Design, Application Security
What is the role all about?
We're hiring full-stack engineers who build with AI, not the traditional way. You should be fluent in modern web engineering, primarily Node.js, and just as fluent in using LLMs and AI tools (Cursor, Claude Code, and similar) to ship fast. Work that once took a month should take a week; what took a week should take a day.
The role spans a range, from architecting backends for non-trivial products like assistants and agents, to rapidly turning a requirement into a clean, customer-facing app or MVP. Be strong in at least one area, be comfortable across the system as a whole, and tell us where you're strongest so we can place you accordingly.
What will you do?
- Plan, build, and ship product features end-to-end, with AI embedded where it has the most impact.
- Integrate LLMs and AI APIs into production-grade applications.
- Use AI tools to prototype, build, and deliver at high speed without sacrificing quality.
- Design scalable APIs and data models with Node.js, Express.js, and MongoDB.
- Build responsive, performant, customer-facing interfaces with React/Next.js.
- Contribute to design discussions, code reviews, and architectural decisions.
What are we looking for?
AI leverage:
- You've shipped real things using LLMs or AI APIs and instinctively reach for AI to move faster.
- Comfortable with prompt engineering and judging AI output for production-readiness.
Engineering depth and delivery:
- Solid fundamentals: problem-solving, data structures, and how systems fit together.
- At least 2+ years across frontend (React/Next.js), APIs (Node.js/Express.js), and databases (MongoDB).
- You write clean, production-grade code and you ship.
- Knowledge of application security or ethical hacking is an advantage.
Culture
- Work with performance-oriented teams driven by ownership and passion.
- Learn to design systems for high accuracy, efficiency, and scalability.
- No strict deadlines, focus on delivering quality work.
- Meritocracy-driven, candid culture. No politics.
- Very high visibility regarding which startups and markets are exciting globally.
About Tracxn
Tracxn (Tracxn.com) is a Bangalore-based product company that provides a research and deal-sourcing platform for Venture Capital, Private Equity, Corp Dev, and professionals in the startup ecosystem.
We are a team of 800+ working professionals serving customers across the globe. Our clients include Funds such as Andreessen Horowitz, Matrix Partners, and GGV Capital, as well as Large Corporates such as Citi, Embraer & Ferrero.
Founders
- Neha Singh (ex-Sequoia, BCG | MBA - Stanford GSB)
- Abhishek Goyal (ex-Accel Partners, Amazon | BTech - IIT Kanpur)
About Technology Team
Tracxn's Technology team is 50+ members strong and growing. The technology team is subdivided into multiple smaller teams, each of which owns one or more services/components of the technology platform. Ours is a young team of motivated engineers with a minimal management structure, in which almost everyone is actively involved in technical development and design. We have a team-centric culture where ownership and responsibility for a feature or module lie with a team rather than an individual.
We work on an array of technologies, including but not limited to ReactJS, Next.js, Storybook, Webpack, Node, Mongo, AWS Lambda, Spring, Elastic Stack, MySQL, Kafka, Redis, Ansible, etc.
We value ownership, continuous learning, consistency, and discipline as a team.
About the Role
Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies. We are hiring a Backend Engineer for a dedicated client engagement building an AI-powered application builder platform.
The backend is the operational core of the product: it manages user projects and sessions, coordinates long-running AI agent workloads, maintains project state, and serves as the integration layer between the frontend, the AI system, and the underlying infrastructure.
The mandatory requirement is hands-on production experience shipping Node.js services, with end-to-end ownership of API design, data modelling, and at least one production system involving background job processing or event-driven patterns.
Responsibilities
API and service development: Design and build REST APIs in Node.js with TypeScript. Cover authentication, session management, input validation, structured error handling, streaming responses (SSE, WebSockets), and rate limiting. Maintain clean API contracts that the frontend and AI system can rely on.
Database design and management: Own PostgreSQL schema design for product domains including user accounts, projects, file trees, session state, and generated artefacts. Write efficient queries, manage migrations, and optimise for read patterns that serve a real-time editor experience.
Caching strategy: Implement and maintain caching with Redis for session data, project state, and frequently read configuration. Design cache invalidation logic that keeps the editor experience consistent without stale reads.
Queue and background job management: Implement and operate background job infrastructure using BullMQ or equivalent. AI agent runs are long-running and stateful; handle retries, failure states, priority queues, and concurrency limits.
AI system integration: Build the integration layer between the backend and the AI agent system. Manage job dispatch, result handling, streaming output to the frontend, and error propagation.
Multi-tenancy and access control: Implement tenant data isolation, RBAC, and resource ownership enforcement across all API surfaces.
Observability and reliability: Instrument services with structured logging, metrics, and tracing. Write defensive code with sensible timeouts, fallback behaviour, and circuit breaking on external dependencies.
Testing and code quality: Write unit and integration tests for the services you ship. Review the work of peers and contribute to shared engineering conventions.
Requirements
• Hands-on production Node.js experience (mandatory) — must have personally shipped at least one feature area end to end in a production Node.js service, owning API design, data modelling, and testing.
• 3 to 5 years of professional backend engineering experience. Candidates with slightly less time but strong demonstrated ownership are welcome to apply.
• Strong Node.js and TypeScript. Production experience with Express, NestJS, or Fastify. Solid with async patterns, streaming, error handling, and building services that run reliably under sustained load.
• PostgreSQL depth. Schema design, query writing, indexing, and migrations on at least one production system.
• Redis and caching. Production experience using Redis for caching and session management. Understands cache invalidation trade-offs.
• Queue and background job systems. Hands-on with BullMQ, RabbitMQ, SQS, or equivalent. Experience managing retries, dead-letter queues, job priority, and concurrency control.
• AWS working knowledge. Comfortable with EC2, S3, RDS, SQS, and IAM. Familiar with Docker and basic deployment and environment management.
• Strong written and spoken English. Able to communicate clearly with engineers across disciplines and write precise technical documentation.
Nice to Have
Experience integrating with AI or LLM services (streaming responses, structured outputs, retry patterns); WebSocket or SSE implementation for real-time features; multi-tenant SaaS product experience; GraphQL; OpenTelemetry instrumentation; prior work on developer tools or editor-style products.












