Java
Spring Boot
Amazon Web Services (AWS)Job Description
We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.
Key Responsibilities
- Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
- Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
- Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
- Drive code reviews, technical discussions, and ensure high code quality and performance standards.
- Troubleshoot critical production issues and implement long-term fixes and improvements.
- Advocate for continuous improvement in tools, processes, and systems across the engineering team.
- Stay up to date with modern technologies and recommend their adoption where appropriate.
Required Skills
- 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
- Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
- Proven experience leading a team of engineers or taking ownership of modules/projects.
- Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
- Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
- Excellent problem-solving, debugging, and analytical skills.
- Strong communication and leadership skills.
About HummingWave
HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.
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Shubham Vishwakarma
Full Stack Developer - Averlon
About Hummingwave Technologies Pvt Ltd
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At Tradelab Technologies Pvt Ltd, we don’t just build web applications, we create highperformance trading platforms tailored for brokers and financial institutions. Our platforms powerreal-time market analysis, ultra-low-latency trade execution, and seamless broker-client interactions. We work in a high-stakes, outcome-driven environment where brokers demand reliability, speed, and security. If you're an expert React developer who thrives on solving complex front-end engineering challenges in the brokerage and trading domain, this is the role for you.
Min 2 years of mobile development experience, with 1+ years in Flutter & Dart.
Proven ability to build and scale real-time, high-performance fintech applications.
A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
Hands-on experience with real-time data streaming, push notifications, and WebSockets.
Strong expertise in security, encryption, and compliance—you know fintech demands precision.
A track record of integrating RESTful APIs, GraphQL, and third-party services into flawless mobile apps.
A mindset that thrives under pressure—we work fast, and we expect results.
Lead the development of world-class fintech mobile applications that redefine user expectations.
Architect and optimize blazing-fast, low-latency Flutter applications for financial markets.
Work with designers, backend engineers, and product teams to craft seamless, intuitive, and ultra secure user experiences.
Solve hard problems at scale—whether it’s optimizing performance, reducing load times, or ensuring
absolute security.
Push the boundaries of mobile fintech innovation, from AI-powered insights to predictive analytics.
Own your work end-to-end—no excuses, no hand-holding, just results.
What You Will Do:Must-Have Skills:
Min 2 years of mobile development experience, with 2+ years in Flutter & Dart.
Proven ability to build and scale real-time, high-performance fintech applications.
A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
Hands-on experience with real-time data streaming, push notifications, and WebSockets.
Nice-to-Have Skills:
Experience in high-frequency trading, stock markets, or financial data visualization.
Contributionsto open-source Flutter projects or a portfolio of high-impact applications.
Knowledge of AI-driven UX, machine learning integrations, or automation in mobile apps.
A background in mentoring developers, leading mobile teams, or setting architectural standards.
Why Join Us?
Work with some of the sharpest minds in fintech and mobile engineering.
Build products that traders, investors, and financial professionals rely on daily.
A culture that values bold innovation, fast execution, and pushing boundaries.
Expect challenges, high expectations, and relentless pursuit of excellence.
Take complete ownership—from ideation to deployment, every pixel and every line of code should
scream excellence.
Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of fintech mobile applications.
If you’re obsessed with performance, thrive under pressure, and are driven by results, we want you on our team. This is your chance to solve some of the toughest engineering challenges in
fintech. Step up. Apply now.
Ruby
Ruby on Rails (ROR)Amazon Web Services (AWS)-Design and build advanced applications from scratch keeping scalability and performance in mind.
-You’ll be working on our P2P and cryptocurrency exchange platforms to build more features around it.
-Collaborating with various stakeholders to determine software requirements
being a financial product, you’ll be involved in building tools to make our user’s data more secure.
-You will be working on blockchain technologies
-You will help maintain code quality and organization.
-Should be able to work with juniors; help and guide them as needed.
-We expect you to learn about new software technologies, and proactively look for ways to make them better.
#You'll be a good fit if:
-You’ve got 3+ years of development experience and an expert in the Ruby and Rails framework.
-You’re a Hands-on expert who can code, architect/design systems, and understand building highly available and scalable microservices on cloud infrastructure.
-You have a very good understanding of Containers and Container Orchestration Technology such as Docker / Kubernetes and AWS Cloud Platform exposure.
-You’ve hands-on experience in using DevOps tools such as Newrelic, Jenkins, Grafana, ELK, etc
-You’re an expert in writing background tasks, test-driven development.
-You enjoy collaborating with the front-end developers, DevOps, and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
-You’re committed to quality, and your code solves more problems than it creates ;)
JavaDeveloped in formal collaboration with the University of Cambridge in May 2000, HeyMath! is an Ed-Tech company whose mission is to Raise the Game in Maths for school systems around the world. We do this using technology to deliver engaging teaching methodologies and personalised learning paths for students. HeyMath! has been successfully adopted by CBSE schools since 2004, with positive outcomes for the entire ecosystem.
Check us out at www.heymath.com
We plan to work mainly from home in 2021 and the virtual office atmosphere is collegiate, informal and friendly, with small high-impact teams making a difference to customers.
What we are looking for:
• Experience in building and re-engineering cloud based solutions on AWS.
• Strong knowledge of Object Oriented Programming(OOPS) and design patterns is a must.
• Hands-on development on Spring MVC framework.
• Experience working on Java 8 or above.
• Must have very good knowledge of RDBMS such as MySQL and performance tuning of the same.
• Good knowledge of Javascript frameworks such as React JS.
• Exposure to server-side and client-side caching mechanisms.
• Basic understanding of proxy servers, load balancers and CDN.
• Ability to debug the applications and provide instant workable solutions.
• Experience working on Elastic Search / Kafka / Kubernetes or all is a nice to have.
JavaSpring Boot
- Good experience in Javabackend/J2EE, Eclipse, Javascript, XML, Data Structures, Database
- Should have good experience working in Springboot.
- Good experience in JSON / RESTful API / Web Services.
- Experience with Design Patterns.
- Experience in AWS and Queuing systems is an advantage
- Basic estimation experience
- Self starter and quick learner
- Should be able to work in a growing environment that is very dynamic and challenging
- Good oral and written communication skills
- Highly self motivated and directed
- Ability to work without a lot of supervision
- Experience in working in a team-oriented and collaborative environment.
NodeJS (Node.js)
Javascript
MongoDB
ExpressRole- Node.js Developer
Job description:
- Nodejs), MySQL, Postgre SQL
- Working experience of GIT
- Will prefer candidates preferred who have knowledge of GraphQL, Typescript
- Well versed and experienced with unit testing, code coverage.
- Well versed with SOILD design principles and its application
- Good to have – some experience with Azure devops and/or azure functions.
- Good knowledge of designing and writing restful API
Go Programming (Golang)Amazon Web Services (AWS)- 3 - 6 Years of Experience in Golang Development
- Understands requirements well and comes up with an efficient design
- Develops complex, well-backed and bug-free products.
- Estimates accurately.
- Takes well-reasoned tech decisions keeping in mind goals and trade-offs
- Become a go-to person in more than one area. Provide technical mentoring to team
- Communicates clearly, gets clarifications, and establishes expectations for all parties
- Helps establish SDLC best practices and high standards of code quality
- Demonstrates excellent problem solving & debugging skills
- Proactively identifies and resolves issues in requirements, design, and code
Ideal Candidate Profile:
- Solid experience in Golang is a must.
- Solid understanding of Apache Products.
- Should have experience in cloud computing (AWS is desired).
- Has an ability to quickly learn and contribute in multiple codebases
- Overcomes roadblocks and requires minimal oversight
- Takes initiatives to fix issues/tech debts before assigned to him/her
- Able to deep dive into the codebase and advise QA of possible regression impact
- Communicates tech decisions through design docs and tech talks
- Has delivered projects with end-to-end accountability
- Keeps track of industry trends and introduces the right tech/ tools for a given job
- Excellent understanding of software engineering practices,
- Design Patterns, Data Structures, Algorithms
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JavaAmazon Web Services (AWS)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
Java- 0 to 2 years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, SQL, PL/SQL, XML, XSLT, JSON,
- Good to have strong experience in Core Java SpringBoot, Spring framework
- knowledge of Spring MVC, Spring REST, JDBC Templates
- Knowledge of Java/J2EE Design patterns
- knowledge of implementation of WebServices like REST will be added advantage
- Good knowledge of Relational Databases like MySQL, PostgreSQL, MS SQL Server with complex SQL Queries, Stored Procedure, Triggers
- Knowledge of Unit Test Cases is added advantage
- Knowledge of build tools like Maven, Gradle, Ant
- Knowledge of any one or more of MongoDB, Cassandra, Neo4J, Redis, Kafka, ActiveMQ, Caches, Microservices will be a major plus
- Good to have knowledge of ORM like Hibernate
- Knowledge and experience in nodejs backend will be added advantage
Requirements :
- Must be a good team player and self-motivated Individual
- Very Strong analytical abilities and interpersonal skills
- Strong verbal and written communication skills with other developers and business clients
- High commitment levels
Java- Strong development experience in Core Java, J2EE, Spring Boot, Oracle SQL/PLSQL and App servers like WebLogic, JBOSS, Unix
- Good Knowledge of SOAP and REST API
- Should have knowledge in SOLID Principles & Design Patterns
- Should have working experience in UI like JSF, JSP, Html, CSS and Javascript / Jquery
- Experience with full-lifecycle development (i.e. design, coding, testing, debugging, etc.)
- Working experience to fix common vulnerabilities and security threat in SOA\Microservices applications
- Knowledge in OWASP Standards and Working knowledge in fixing security issues, data encryption and cryptography.
- Prior experience and knowledge of security tools like Fortify, Sonatype and webInspect is a plus
- Good to have knowledge and working experience in Angular JS
- Translate business requirements into detailed specs/designs
- Design thinking while arriving at solution
- Strong technical troubleshooting, diagnosing and problem-solving skills
- Ability to work with distributed teams in a collaborative and productive manner
- Solving complex business and workflow issues with solid scalable technical solutions
- Must be a self-motivated, proven performer who enjoy challenging assignments in a high-energy, fast growing workplace
- Agility and ability to adapt quickly to changing requirements and scope and priorities
- Good in communication, both written and verbal
- Should have Agile scrum experience.
- Team Player with very good attitude
- Attention to detail and focus on quality
- Knowledge in financial services domain is a plus
- Good to have knowledge on Static AppSec Testing (SAST) and Dynamic AppSec Testing (DAST)
Java
Follow CutshortShubham Vishwakarma
Full Stack Developer - Averlon