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Minimum 7-12 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
· Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
· Excellent knowledge on collections like, Array List, Vector, LinkedList, Hashmap, HashTable, HashSet is mandate.
· Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
· Expert level understanding of Object Oriented Concepts and Data Structures
· Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.



2. Spring boot/ Spring or any variations of Spring
3. MySQL
4. Mentions of, distributed systems, scalable systems
5. Mentions of ElasticSearch, Kafka or Redis
6. NoSQL databases like Cassandra/DynamoDB/MongoDB/Hbase etc
7. Mentions of Handling scale/scalable systems
9. Mentions of AWS or Amazon web services.



Job Description
This is a remote position.
Requirements
- You need to be excited about the problem that we are trying to solve
- Should have excellent command over designing systems with a minimum experience of 4 years.
- Should have experience with various database flavors and writing complex queries. We work with Postgres, Redshift, ElasticSearch, TimescaleDB, and Redis.
- Additional knowledge in Golang will be an advantage
- Strong Data Structures and Algorithms knowledge
- Should have created APIs from scratch which is being used in Production
- Should be comfortable with creating systems handling up to 100k requests per minute, and have a mindset that understands scale
- Ability to give clarity and communicate well with the team, including Product, Backend and Dev-Ops (if and when needed)
- Ability to use profiling tools well, getting to root causes of bugs fast
- Ability to pick and work on adjacent technologies if and when required (Eg: If the best performance monitoring solution needs a basic firebase setup, that should not be a blocker for you to go ahead and do so)
- Knowledge of how to set up relevant test cases
- You need to be comfortable working in a remote environment (Good internet connection and availability on phone is required)
- App Development experience
- Experience in Test Driven Development
- Ability to tell Product what creates better User Experience, ability to tell frontend what API responses will help the user get a faster load time
- Inquisitiveness to understand the system as a whole, and not only be stuck to your domain of expertise (Eg: Figure out why excessive APIs calls are being made, brainstorm with Product and Frontend team to reduce the same without harming the UX )
- Experience in working on a Social Media Product
- Good knowledge of Graphs, and their applications
- Data-Driven Approach to monitoring
Benefits
- Work timings - You are the master of your time. However, with great freedom comes great responsibility. If you have committed something to the team, we expect that you will give it your best to make sure that commitment is done and is done on time.
- Leave policy - Take a leave whenever for whatever reason you want. You don't need to explain yourself to us
- Health insurance for you and your family

Responsibilities:
• Take on complex problems that span multiple components and teams.
• Independently own one or more multiple modules, which include: requirement analysis, design, development, maintenance & support
• Write extensive, efficient code to address complex modules that handle the interaction between multiple components.
• Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
• Produce architecture with clean interfaces, that are efficient and scalable
• Participate and contribute to architectural discussions
• Solve production issues. Investigate and provide solutions to minimize the business impact due to the outage
• Continuously improve performance metrics of modules you own.
• Collaborate effectively across teams to solve problems, execute and deliver results
Requirements:
• Experience: 2+ years
• A Bachelor's or Master's Degree in Computer Science
• Software engineering and product delivery experience, with a strong background in algorithms
• Experience in architecting & building real-time, large-scale e-commerce applications
• Experience with high-performance websites catering to millions of daily traffic is a plus
• Excellent command over Data Structures and Algorithms
• Experience with web technologies, Go/Java/Python
• Language: GO or Python
• Strong expertise in DS and Algo
• Strong leadership skills - have experience mentoring, building products from scratch or incumbent in design and architecture.
• Have worked in the scaling of the system right from scratch.
• Someone worked in small user base to a large user base and wrote optimized code
• Both HLD and LLD


Overview Atom Technologies began its operations in 2005, with the sole aim of providing secured and seamless digital payment solutions to all. Throughout the years, Atom has been successfully developing innovative and award-winning digital payment solutions, catering to the needs of Small and Medium Merchants alike. This encompasses services like POS, Payment Gateway, IVR and Mobile Application. Roles and Responsibilities · Displaying sound knowledge of software engineering process, you will work on Payment domain projects · You will participate in AGILE teams. · You should have ability to work as an individual contributor. · You will need to use capability of customer focus and collaboration skills · Using good analytical, debugging and tracing skills, you should be well-versed with clean code principles (SOLID, DRY, KISS) and exposure to secure coding is beneficial.
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Responsibilities for Staff Engineer role:
- Having experience in Java/Python/Golang along with Springboot, Micorservices, RDBMS
- Experience required: 10yrs to 15 yrs.
Urgent requirement for Java developer for a product-based company.
Apply only if you have experience in data structure and algorithms
Please note the notice period. we are looking for an immediate to 15 days joiner only.
Experience: 3+ years
Location: Bangalore
Notice Period: Immediate to 15 days
Working: currently WFH
Skills: Core java developer, Hibernate, Spring, Data structure, Spring boot/Micro service



It is India’s only B2B Construction Materials Supply Chain Company. Construction & Infrastructure is one of the industries, with the most complex problems in Supply Chain and we are fundamentally reengineering the way construction materials get procured. Our Clients include the biggest names in India & the World– The LafargeHolcim Group, JSW Group, The Tatas and many others. We are backed by some of the world’s top marquee funds in our journey to create transparency and standardization to an otherwise opaque industry.
Your responsibilities:
- Understand the business context and build high quality code using proven design patterns Develop, test and deploy integrations required to meet business requirements
- Carry out unit tests and other quality control mechanisms to inform and validate the code and design
- Utilizing and monitoring cloud infrastructure resources (such as AWS, Azure) efficiently
- Participate in a highly fluid environment applying agile software development principles
- Ensure the coding standards are on-par with the best in the industry
Educational Qualifications:
- Bachelor's or Master’s degree in a quantitative field (e.g. Mathematics, Engineering, Computer Science).
Must have skills:
- 3+ years of work experience with mobile/web development
- Experience in working with either of languages: Go, Java, Scala
- Strong understanding of relational and non-relational databases (MySQL, PostgreSQL, MongoDB, Cassandra)
- Strong understanding of Message brokers
- Must have hands on experience in Restful APIs
- Must have a strong foundation of Data structures and Algorithms
- Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems
- Ability to deploy features on a daily basis: should be good at time management and prioritization
- Hands-on experience in CI/CD principles and TDD
- Strong written and verbal English communication skills
Good to have skills:
- Experience in event-driven & asynchronous I/O frameworks
- Exposure to business process and workflow automation
- Working experience in process driven and data intensive business applications
- Experience in working on web infrastructure with React.js and React Native
Professional traits:
- Self-motivated, persistent and “Never Give Up” attitude
- Passion for innovation and adaptability to a lean startup culture
- Ability to work with minimal supervision, independently and / or as a member of a team
- Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate

