You will get while working with us
- Opportunity to work on highly distributed systems with micro-services architecture and big-data volumes
- Solve challenging real-world problems by leveraging OOP & functional programming concepts
- Opportunity to incubate an open source project
- Get to work with cutting edge technologies to name a few Kafka, Elasticsearch, Postgres, Scala
- Developing scalable, sustainable and reliable enterprise systems
- Hands-on experience of working with TDD and BDD
- Develop environment using practices such as Continuous Integration, Continuous Delivery
- Learning opportunity on how to turn complex business requirements into a working product
Roles & Responsibilities
- Requirement understanding & analysis by interacting with client
- Carry out architectural and design discussions with fellow team members and come up with right approach
- Understand system domain, user’s perspective of system and use-cases
- Understand patterns in existing code and effectively leverage and improvise it
- Develop backend involving Java8 based functional programming and REST services
- Ensure best practices of code reviews, automated testing and CI
- Research new tools & technologies required for the projects
- Mentor fellow team members and bring their level up
Must have
- Strong hold on written/verbal communication
- Strong core Java fundamentals
- Strong Analytical & problem solving skills
- Proactive and inherent nature of working with ownership
- Passion of writing clean code
- Experience in designing relational data model from business requirements
Good to have
- Knowledge of functional programming (Scala or Java 8 lambda)
- Knowledge of NOSQL
- Working knowledge of linux & networking
- Performance optimisation - Optimise/refactor queries, code, stored procedures to take performance next level

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Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 4 to 10 years. • Experience in Core Java and Spring Boot. • Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns. • Should have the ability to analyze, design, develop and test complex, low-latency client facing applications. • Good development experience with RDBMS. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
Job description
🔧 Key Responsibilities:
- Design and implement robust backend services using Node.js.
- Develop and maintain RESTful APIs to support front-end applications and third-party integrations
- Manage and optimize SQL/NoSQL databases (e.g., PostgreSQL, MongoDB, Snowflake)
- Collaborate with front-end developers to ensure seamless integration and data flow
- Implement caching, logging, and monitoring strategies for performance and reliability
- Ensure application security, scalability, and maintainability
- Participate in code reviews, architecture discussions, and agile ceremonies
✅ Required Skills:
- Proficiency in backend programming languages (Node.js, Java, .NET Core)
- Experience with API development and tools like Postman, Swagger
- Strong understanding of database design and query optimization
- Familiarity with microservices architecture and containerization (Docker, Kubernetes)
- Knowledge of cloud platforms (Azure, AWS) and CI/CD pipelines.
We are looking for passionate people who love solving interesting and complex technology challenges, who are enthusiastic about building an industry first innovative product to solve new age real world problems. This role requires strategic leadership, the ability to manage complex technical challenges, and the ability to drive innovation while ensuring operational excellence. As a Backend SDE-2, you will collaborate with key stakeholders across the business, product management, and operations to ensure alignment with the organization's goals and play a critical role in shaping the technology roadmap and engineering culture.
Key Responsibilities
- Strategic Planning: Work closely with senior leadership to develop and implement engineering strategies that support business objectives. Understand broader organization goals and prepare technology roadmaps.
- Technical Excellence: Guide the team in designing and implementing scalable, extensible and secure software systems. Drive the adoption of best practices in technical architecture, coding standards, and software testing to ensure product delivery with highest speed AND quality.
- Project and Program Management: Setting up aggressive as well as realistic timelines with all the stakeholders, ensure the successful delivery of engineering projects as per the defined timelines with best quality standards ensuring budget constraints are met. Use agile methodologies to manage the development process and resolve bottlenecks.
- Cross-functional collaboration: Collaborate with Product Management, Design, Business, and Operations teams to define project requirements and deliverables. Ensure the smooth integration of engineering efforts across the organization.
- Risk Management: Anticipate and mitigate technical risks and roadblocks. Proactively identify areas of technical debt and drive initiatives to reduce it.
Required Qualifications
- Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
- 1-3 years of experience in software engineering
- Excellent problem-solving skills, with the ability to diagnose and resolve complex technical challenges.
- Proven track record of successfully delivering large-scale, high-impact software projects.
- Strong understanding of software design principles and patterns.
- Expertise in multiple programming languages and modern development frameworks.
- Experience with cloud infrastructure (AWS), microservices, and distributed systems.
- Experience with releational and non-relational databases.
- Experience with Redis, ElasticSearch.
- Experience in DevOps, CI/CD pipelines, and infrastructure automation.
- Strong communication and interpersonal skills, with the ability to influence and inspire teams and stakeholders at all levels.
Skills:- MySQL, Python, Django, AWS, NoSQL, Kafka, Redis, ElasticSearch
• Java 8/12• Frameworks - Spring MVC, REST, Spring Boot, Hibernate, (Optional – Play)• Oracle DB• Elastic Search (Optional but good to have)
• Junit, Mockito• Messaging – Should have knowledge of how RabbitMQ works
• Agile / TDD
• Good Experience in Core-Java concepts
• Experience of Continuous Integration / Continuous Delivery frameworks – Jenkins• Apache, Tomcat
• Good to have basic knowledge in AWS
• Good communication abilities & team-working skills
- Looking for 2+ Years of Java Developers.
- Looking for Immediate joiners.
- Application development experience in Spring Framework, Spring MVC ,Spring Boot.
- Experience in designing and developing microservices.
- Experience in data structures.
Senior Software Engineer (L4 - Tech Lead)
Because you belong at Twilio.
The Who, What, Why and Where
Twilio is growing rapidly and seeking a Staff Software Engineer to lead the design and implementation phases of cloud-based distributed systems built to seamlessly scale to several million transactions per day.
Who?
As a Staff, Software Engineer (L4 - Tech Lead) in the Account Security team, you will lead the design and implementation phases of cloud-based distributed systems built to seamlessly scale to several million transactions per day. Not only will you be responsible for tackling some of the most complex and exciting technical problems in the industry, you will also be sharing your technical expertise with other engineers and leading them through an accelerated learning process.
You are intrigued by the intersection of the cloud, telecommunications and security spaces, how to harness the power of SMS and voice to enable millions of consumers to securely sign up and sign in every day using the services from the global brands they trust. You enjoy the challenge of owning a mission critical service and engineering it to work reliably in any circumstance.
You are also passionate about collaborating with multiple R&D and product teams, crafting together microservices and APIs that developers around the world will demonstrate to deliver new applications. You have strong communication skills, and a belief that team output is more important than individual output.
Minimum Qualifications
- 7+ years of experience with at least two programming languages such as Java, Scala, Python, Ruby, JavaScript or Go.
- 5+ years of experience working with modern agile product development teams of engineers, product managers and designers.
- 5+ years of Experience with SQL/NoSQL technology such as PostgreSQL, MySQL, DynamoDB understanding common use cases and performance pitfalls
- 2+ years of Experience dealing with event-driven architectures and message brokers such as RabbitMQ, KAFKA, ActiveMQ, etc and an in depth understanding of their use cases and pitfalls
- Versed in concepts such as DDD, SOLID, Cloud Native Patterns, distributed systems and architecture. Capable of understanding pitfalls and anticipating common failure modes of a microservice environment.
- Experienced in implementing prototypes and in practices and concepts such as MVP, A/B testing and feature toggles for rolling-out features to production.
- Strong communication skills: able to communicate effectively with technical and non technical partners
- Bachelor’s degree in computer science or equivalent professional experience.
- Passion for new technologies and proven capability in analysis and problem-solving.
- Strong troubleshooting and monitoring skills with practical experience in modern tools such as Kibana, Datadog, PagerDuty or related.
Preferred Qualification
- Experience with https://stackshare.io/twilio/verify-telephony">our stack
- Track record as a full-stack engineer
- Experience with AWS related technologies
- Background in telecommunications domain
- Background in security domain
What?
- BE AN OWNER: Take full end-to-end ownership of your services, from designing to operations and monitoring in production.
- EMPOWER OTHERS: Provide a safe work environment that embraces failure as a way of learning and inspires our engineers to be inventive and motivated.
- NO SHENANIGANS: You always act in an honest, direct and transparent way and uphold our values.
- WEAR THE CUSTOMER’S SHOES: Besides technical excellence, always keep in mind what is the business problem we are trying to solve for our customers and how our decisions impact them.
- WRITE IT DOWN: Evaluate opportunities, risk and technical strategies and provide key findings to internal partners.
- RUTHLESSLY PRIORITIZE: Work in a fast paced environment. It is key for you to understand, document and define risks that drive and enhance the organization's ability to prioritize while advising the business of these priorities.
- BE BOLD: Drive architecture and building systems for multiple orders of magnitude of growth. Every big idea starts small: open up the boundaries and keep raising the bar as solving small problems can bring big results. Never settle and keep pushing yourself and the teams forward.
- BE INCLUSIVE: Coach, mentor and inspire engineering teams by building and ensuring a safe and inclusive environment where all voices can be heard.
- DRAW THE OWL: Influence teams to continuously be improving while supporting progressive ways to solve problems; adopt new technologies and strategies where applicable.
- DON’T SETTLE: Always look for the next opportunity for Twilio to improve our quality, reliability and security to continuously earn our customers trust.
Why?
Our developers build the leading Twilio Verify service used by millions of customers around the world. Every day we push the boundaries of web-scale service delivery, operating with utmost reliability the API services that secure the online presence of the biggest brands. We are passionate about crafting simple APIs that developers will love.
By joining us you will have the opportunity to work on the next generation of Twilio multi factor authentication and identity verification services with a team of forward-thinking and supportive professionals who will care about helping you on a successful career path. Twilio is truly unique; we are a company committed to your growth, your learning, your development, and your entire employee experience. We only win when our employees succeed, and we're dedicated to helping you develop your strengths. We have a cultural foundation built on diversity, inclusion, and innovation, and we want you and your ideas to thrive at Twilio.
Where?
This position will be located in our office in Bangalore, India. You will enjoy our office perks: catered meals, snacks, game room, ergonomic desks, massages, bi-weekly All Hands and more. What you will also get to experience is a company that believes in small teams for maximum impact; seeks well-rounded talent to ensure a full perspective on our customers’ experience, understands that this is a marathon, not a sprint; that continuously and purposefully builds an inclusive culture where everyone is able to do and be the best version of themselves.
About Us
Millions of developers around the world have used Twilio to unlock the magic of communications to improve any human experience. Twilio has democratized communications channels like voice, text, chat, video and email by virtualizing the world’s communications infrastructure through APIs that are simple enough for any developer to use, yet robust enough to power the world’s most demanding applications. By making communications a part of every software developer’s toolkit, Twilio is enabling innovators across every industry — from emerging leaders to the world’s largest organizations — to reinvent how companies engage with their customers.
Invest in weeks dedicated to tackling hard problems and creating your own ideas. We have a cultural foundation built on diversity, inclusion, and innovation, and we want you and your ideas to thrive at Twilio
What you will be doing
You will join our team as our Senior PHP Developer (Laravel) and your main responsibilities will be to:
- Write clean and maintainable code with good test coverage.
- Implement new features in collaboration with our design team.
- Optimize existing code to perfection with special attention to performance and maintainability.
- Do a code review of your colleagues work.
You and our future-proof stack
- We seek a balance between sticking with what works and fearlessly exploring the new.
- We use the latest stable version of PHP 7|8 because it allows us to write better code using features like strict type declarations, typed class properties and arrow functions.
- We leverage the elegance, simplicity and readability of the latest Laravel version.
- We want to spend our precious time on things that matter the most; that's why we perfect our easy to run the development environment with Homestead and custom scripts.
- We write and run tests with PHPUnit and http://cypress.io/">JavaScript End to End Testing Framework.
- We have a great set of tools to maintain the code quality and run on CI/CD (psalm (error level 4), rector, phpcs, php-cs-fixer, phpcpd etc.)
- We use Rector to maintain our code quality.
- We’re constantly refactoring our front-end code intending to reach front-end heaven:
- Laravel Blade template engine.
- PostCSS to maximize the power of modern CSS.
- Webpack for perfect control over front-end assets.
- Latest JS with support for ES2020 features. To accomplish this we use the latest Babel releases.
We ❤ CI (Continuous Integration) and CD (Continuous Delivery) so we usually deploy a few releases per day: Zero downtime. Just a few buttons to push. No sweaty palms.
We care deeply about the Developer Experience (DX) of our codebase and tools. DX and DevOps is our middle name: Git, GitHub, HTTP/2, Assets CDN, AWS, Enterprise SSDs on our high-spec servers, and much more.
About you
- You have expert knowledge of PHP.
- You have expert knowledge of Laravel.
- You have experience with test-driven development (TDD).
- You have 6+ years of experience working professionally with OOP.
- Your work is based on a solid foundation in computer science fundamentals from data structures and algorithms to design patterns.
- You are an engineer by mindset and always try to understand how things work under the hood.
- You have substantial experience working with RESTful web services and ORM concepts.
- You love to learn through doing. You’re ready to put in some hard work to expand your skills.
- You speak and write acceptable English – not perfect English, just acceptable
- You are a team player and you don't bring your ego to work.
- You are self-motivated and self-disciplined and thus work well in a flat hierarchy with lots of freedom.
- You love to have creative freedom, make independent judgments and live up to the responsibility that comes with that freedom.
- You love to create tangible results—every hour and every day.
- You love to make a positive impact on the world and the lives of others.
• Strong leadership skills; 3 years experience leading development teams.
• Experience architecting technical designs based on functional and business requirements.
• Project Management skills
• Exceptional communication skills, verbal and written
• Should be able
• To produce high quality technical documentation for our customers
• To decompose technical tasks and provide accurate estimates
• To coach less experienced members of your team
• To undertake development tasks without supervision, including software designing, programming and Unit testing
• To monitor progress and provide updates to the Project Manager










