
Back End Developer
Qualification : Engineering /Master degree in Computer Science/Electronics/Electrical/Information
Technology Experience : 3- 6 years Skill Sets :
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The server part of client-server programming
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Strong database schema skills, querying, joins, triggers, stored procedures
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Programming languages and frameworks: Javascript and NodeJS languages: PHP, Node,
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Relational databases such as MySql, SQL Server, Postgres, NoSQL database MongoDB
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REST-compliant APIs
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Big Data processing
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Experience in Agile SCRUM method of development
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Familiar with GIT and Devops tools and technologies
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Spring Boot, JavaScript, MongoDB, Maria DB, Microservice , Devops, Rest API, Postman, AWS, Nginx, Redis, Docker

About Petrus Technologies
About
As an engineering R&D services company, we at Petrus, aim to bring to the world the wings to fly with innovative technologies while we are rooted in strong and time-tested delivery principles bringing the fastest time to market, quicker return on investment and incredible rate of success.
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Minimum 5 years of experience in NestJS and NodeJS backend development.
● Strong expertise in microservices architecture.
● Proficient in working with SQL databases like PostgreSQL or similar.
● Hands-on experience with ORMs (e.g., TypeORM or other popular ORMs).
● Solid understanding of Swagger for API documentation.
● In-depth knowledge of REST API architecture.
● Basic understanding of Docker/containerization tools.
● Excellent debugging and problem-solving skills.
● Strong communication skills for effective collaboration across teams.
● Sound knowledge of design patterns and backend best practices.
● System design expertise (a strong plus).
● Basic knowledge of frontend technologies like React or Angular (a plus).
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Hands on experience on DynamoDB, Lambdas and serverless architecture
- Good understanding of Microservices
- Knowledge of Node.js and frameworks available for it such as Express
- User authentication and authorization between multiple systems, servers, and environments
- Understanding fundamental design principles behind a scalable application
- Implementing automated testing platforms and unit tests
- Collaborating with front-end developers on the integration of elements.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
Responsibilities:
- Collaborate with cross-functional teams including front-end developers, designers, and system administrators to develop robust and scalable server-side applications.
- Design and implement RESTful APIs and services using Node.js, ensuring efficient data handling and integration.
- Develop database schemas and models for MongoDB, optimizing queries and ensuring data integrity.
- Implement data migration and transformation tasks between different data sources.
- Write efficient and reusable code, following best practices and coding standards.
- Conduct thorough testing and debugging of applications to identify and fix issues promptly.
- Collaborate with DevOps team to deploy applications on servers or cloud platforms.
- Continuously monitor application performance and optimize it for scalability and reliability.
- Stay updated on emerging technologies and trends, actively suggesting improvements and innovative solutions.
Requirements:
- Strong proficiency in Node.js and JavaScript.
- Solid understanding of server-side development and asynchronous programming concepts.
- Experience working with NoSQL databases (e.g., MongoDB).
- Knowledge of database design and query optimization techniques.
- Familiarity with web application security principles and best practices.
- Proficiency in using version control systems (e.g., Git).
- Good understanding of agile development methodologies.
- Excellent problem-solving and analytical skills.
- Effective communication and collaboration abilities.
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 2.5 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large-scale social or location-based app.
Who We are?
At e6data (https://e6x.io/" target="_blank">https://e6data.io) we’re building core algorithms that make querying 25 - 200X more performant (i.e. faster and/or cheaper) than every other analytics platform in the world. This results in billions of dollars of value unlocked across faster analytics, savings on computing/infra, and new use cases become possible.
Our core team has 100+ years of combined experience and 10+ patents across diverse but complementary disciplines like real-time databases, time-series databases, SQL OLAP engines, distributed computing platforms, stream processing, and log analytics. Two of the founding team are second-time founders with past exits.
We are passionate about solving the deepest and most important problems in computer science and believe in making our technology available to customers regardless of their location, size, or budget. Our vision is for e6data to power every analytical workload in the world - regardless of deployment scenario (cloud, on-premise, edge), across every use case (end-user queries, ETL / data pipelines), and every latency requirement (batch, streaming / real-time).
What you will do?
- Write awesome code
- Your primary focus will be on building our product around our core algorithms. You will collaborate with our Performance Engineering and DevOps teams.
- Identify tactical and long-term product improvements (could be code, script, etc.) so that e6data development is based on frictionless onboarding of customers
- Build our internal Data Platform using e6data
- Adding scalable functionality to the core e6data engine for new features like UDFs, SQL functions, etc
What we are looking for?
- Worked with Java for a minimum of 4 years
- Knowledge of SQL Query planning will also be good to have
- A passion for continuous learning and growth (both at a personal and team level)
- Strong team player
- Experience (or enjoys) working in a startup will be an added advantag

Intro
EAGLE Power Holdings aims to launch a portfolio of new energy retail brands, all of which enjoy the efficiency of a single technology platform. We want to do more than offer cheap "green" tariffs, and believe that our range of engaging brands can identify with shifts in consumer preferences (e.g. growth of EV usage), with the value of local communities, and with proactive support of broader ESG causes.
Our long-term strategy is technology-driven, and involves unlocking value through the digitalisation of processes around customer acquisition, engagement, and retention.
Developers at EAGLE flourish in an agile process where collaboration and ego-free communication is valued. We believe in developing working software throughout the entire product development process. We engage in product thinking as a team and cross-functionality among product managers, designers, and domain experts is promoted.
How you fit in
Engineering is the executional function of EAGLE's software delivery wing. As a server-side developer at Eagle, you will take the lead on implementing various software services of our core energy retail infrastructure. Not only are you expected to write clean, tested, and maintainable code, you will also be a central part of a product team that iterates constantly, ships regularly, and learns continuously. You will have the creative freedom for learning, experimenting, and responsible risk-taking in a startup environment.
What your role consists of:
- Develop enterprise-scale backend services using Golang
- Collaborate with engineers, UI/UX designers, and product owners to build & ship new features and maintain/enhance existing ones
- Independently come up with extensible low-level software design. Write modular, tested, readable and performant code
- Debug production issues across services and multiple levels of the stack
- Help inform product prioritisation and scoping decisions by evaluating technical complexity and risk
- Improve engineering standards, tooling, and processes
- Maintain technical documentation
What you bring to this role:
- At least 1-3 years of demonstrated ability to rely on an iterative process to maintain momentum on projects in a distributed, collaborative, agile environment
- An ownership mindset: you should look not only at what you’re asked to do, but ask why you’re doing it and how it impacts on the rest of the product, our customers, and whether it makes sense
- Comfort with low-level engineering and ability to write efficient, performant and tested code
- Think deeply about systems and services and write high-quality code. We work mostly in Golang, with AWS Cloudformation. However, languages can be learned: we care much more about your general engineering skill than - knowledge of a particular language or framework.
- Excellent communication skills and ability to give and receive constructive feedback
- Passion for the whole product process. You will have your specific areas of focus, but we find those that are passionate about the bigger picture collaborate best with cross-functional teams
Where we are
While the company is registered in the UK, the software delivery wing is built to be remote-first. Whether you prefer to be in situ or a digital nomad (or anything in between), you are welcome. We are not inclined to support relocation to London for candidates that are not already based there, as we are a remote-first company.
What’s in it for you
We offer competitive salaries based on prevailing rates in your local employment market, but there is further room to negotiate if you are the right candidate. In addition to your basic package, you can expect to receive the following benefits:
- Flexible working hours
- Unlimited annual leave
- On-the-job coaching, and access to mentorship by industry and domain thought leaders
- Full or partial sponsorship for professional/skill development courses, certifications, and other learning opportunities (evaluated on a case-by-case basis)
- Monthly allowance package for remote working (coworking membership or cash allowance)
About EAGLE Power Holdings
In a nutshell: Transforming energy retail and supply through cutting-edge software and AI technology
The venture is in ‘stealth mode’ as we lay the foundations for blast-off. It has been launched by a team with a history of entrepreneurial successes. These include one in the climate change space which services the Californian and North America carbon markets, and another which provides highly refined machine learning software to the energy arena in Asia. Both companies were acquired last year.
This start-up was launched in London at the end of 2020, and will focus on the deregulated energy market in GB. The mission is to discover, or invent, a viable business and operational model for energy retail within the near-zero-cost energy ecosystem that the world is moving towards. This transformation is driven by the ever-decreasing prices of renewables/alternative generation, and by the exponentially growing volumes of national energy system data. We believe these factors have yet to truly disrupt the market, and intend to accelerate the sharing of value back to consumers.

Job Description – Sr. Magento Developer
We are looking to hire an experienced Magento Developer to build and maintain E-commerce websites for our clients. As a Sr. Magento Developer, you will be responsible for liaising with the design team, setting up Magento 2.x sites, building modules and customizing extensions, testing the performance of each site, and maintaining security and feature updates after the installation is complete.
Role Responsibilities:
- Architect and propose Magento solutions as per client requirements
- Review business requirements working with other team members
- Perform a technical analysis of requirements
- Produce a solid, detailed technical design
- Write clean, modular, robust code to implement the desired requirements with little or no supervision
- Work with the QA and Customer Support teams to triage and fix bugs with rapid turnaround
- Contribute ideas for making the application better and easier to use
- Train the subordinate team of developers
- Create reusable components, which can be configured for different projects
- Create test plans and perform thorough quality analysis on the code before go live
- Research on new integration and plug-in capabilities
- Be actively involved in the pre-sales activities by demonstrating technical capabilities through POCs
Technical & Professional Requirements:
- Bachelor’s degree in Computer Science or related field
- Experienced in Magento (E-commerce CMS) 3-6 years (Familiar with Zend Framework)
- Strong experience with the LAMP stack, MVC or Zend framework
- Strong HTML, JavaScript/jQuery, CSS, Ajax skills
- Strong experience with various API technologies including REST, SOAP
- Knowledge of Agile development methodology
- Excellent communication skills, both written and verbal
- Strong attention to detail
- Ability to manage and work under strict deadlines
- Ability to work in a team environment
Service Line/Domain: Information Technology



We, the Products team at DataWeave, build data products that provide timely insights that are readily consumable and actionable, at scale. Our underpinnings are: scale, impact, engagement, and visibility. We help
businesses take data driven decisions everyday. We also give them insights for long term strategy. We are focused on creating value for our customers and help them succeed.
How we work
It's hard to tell what we love more, problems or solutions! Every day, we choose to address some of the hardest data problems that there are. We are in the business of making sense of messy public data on the web. At
serious scale! Read more on Become a DataWeaver
What do we offer?
- Opportunity to work on some of the most compelling data products that we are building for online retailers and brands.
- Ability to see the impact of your work and the value you are adding to our customers almost immediately.
- Opportunity to work on a variety of challenging problems and technologies to figure out what really excites you.
- A culture of openness. Fun work environment. A flat hierarchy. Organization wide visibility. Flexible working hours.
- Learning opportunities with courses, trainings, and tech conferences. Mentorship from seniors in the team.
- Last but not the least, competitive salary packages and fast paced growth opportunities.
Roles and Responsibilities:
● Build a low latency serving layer that powers DataWeave's Dashboards, Reports, and Analytics
functionality
● Build robust RESTful APIs that serve data and insights to DataWeave and other products
● Design user interaction workflows on our products and integrating them with data APIs
● Help stabilize and scale our existing systems. Help design the next generation systems.
● Scale our back end data and analytics pipeline to handle increasingly large amounts of data.
● Work closely with the Head of Products and UX designers to understand the product vision and design
philosophy
● Lead/be a part of all major tech decisions. Bring in best practices. Mentor younger team members and
interns.
● Constantly think scale, think automation. Measure everything. Optimize proactively.
● Be a tech thought leader. Add passion and vibrancy to the team. Push the envelope.
Skills and Requirements:
● 5-7 years of experience building and scaling APIs and web applications.
● Experience building and managing large scale data/analytics systems.
● Have a strong grasp of CS fundamentals and excellent problem solving abilities. Have a good understanding of software design principles and architectural best practices.
● Be passionate about writing code and have experience coding in multiple languages, including at least one scripting language, preferably Python.
● Be able to argue convincingly why feature X of language Y rocks/sucks, or why a certain design decision is right/wrong, and so on.
● Be a self-starter—someone who thrives in fast paced environments with minimal ‘management’.
● Have experience working with multiple storage and indexing technologies such as MySQL, Redis, MongoDB, Cassandra, Elastic.
● Good knowledge (including internals) of messaging systems such as Kafka and RabbitMQ.
● Use the command line like a pro. Be proficient in Git and other essential software development tools.
● Working knowledge of large-scale computational models such as MapReduce and Spark is a bonus.
● Exposure to one or more centralized logging, monitoring, and instrumentation tools, such as Kibana, Graylog, StatsD, Datadog etc.
● Working knowledge of building websites and apps. Good understanding of integration complexities and dependencies.
● Working knowledge linux server administration as well as the AWS ecosystem is desirable.
● It's a huge bonus if you have some personal projects (including open source contributions) that you work on during your spare time. Show off some of your projects you have hosted on GitHub.


