Tech Lead for Backend Development (Java / Springboot)

About Toast

Toast is on a mission to empower restaurants of all sizes with a robust platform that helps them adapt, take control, and focus on what they do best—creating the businesses they love. Our platform processes billions of dollars in transactions, streamlining operations and enabling restaurants to scale efficiently. As we grow, we prioritize extensibility, resilience, and scalability, leveraging cutting-edge continuous delivery tools and methodologies to drive rapid innovation.

About the Role: Principal Software Engineer

Are you bready for a change? 🍞 Toast is seeking a Principal Software Engineer to enhance our architecture and take our team to the next level. In this role, you’ll build mission-critical systems, drive innovation, and directly impact Toast’s growth and success.

Responsibilities

As a Principal Software Engineer, you will:

• Design & Develop scalable backend solutions using Kotlin, Java, DynamoDB, GraphQL, Pulsar, and Big Data technologies.
• Lead Architectural Decisions to ensure high availability, resilience, and performance across Toast’s platform.
• Collaborate Cross-Functionally with Product, UX, and Business teams to drive business impact through engineering solutions.
• Optimize System Performance & Cost Efficiency, ensuring scalable and maintainable software solutions.
• Mentor & Guide Engineers, fostering a culture of innovation and best practices in software development.
• Drive Business-Centric Decision-Making, ensuring engineering solutions align with revenue growth, customer experience, and operational efficiency.
• Improve Engineering Processes through automation, standardization, and technical excellence.

Do You Have the Right Ingredients? (Requirements)

• 14+ years of software development experience in designing and scaling high-performance backend systems.
• Proven track record of driving business impact—understanding how technical solutions align with revenue, cost savings, and scalability.
• Strong executive communication skills—able to articulate technical concepts clearly to senior leadership and stakeholders.
• Problem-solving mindset—can identify gaps, propose solutions, and execute with a long-term vision.
• Deep expertise in distributed systems, cloud platforms (AWS, GCP, Azure), and database technologies (SQL, Postgres, DynamoDB).
• Hands-on experience with Java, Kotlin, C#, or similar backend languages.
• Agile mindset with a focus on continuous delivery, DevOps practices, and process improvements.
• Mentorship & leadership experience—can influence teams, drive technical excellence, and promote best practices.
• Ability to design scalable, cost-effective solutions—architecting systems for long-term growth.

Our Tech Stack

At Toast, we work with:

• Backend: Microservices architecture with Java, Kotlin, AWS (S3, RDS, Lambda), .NET/C#, GraphQL.
• Frontend: React, ES6, Angular, MVC frameworks.
• Data: Postgres, RabbitMQ, Apache Spark, SQS, SNS, Redshift, SageMaker, Big Data technologies.
• POS Application: Android (Java/Kotlin).

Our Spread of Total Rewards

Toast offers a competitive compensation and benefits package designed to support a healthy lifestyle, flexibility, and long-term career growth. Learn more: Toast Benefits.

We Are Toasters

Diversity, Equity, and Inclusion (DEI) are baked into our recipe for success. 🍞 We embrace the diversity of the restaurant industry, fostering inclusivity, respect, and trust. We believe equitable opportunities and authentic principles drive success, enabling us to lead in our industry.

Join us and help shape the future of restaurant technology! 🚀

We are seeking extremely smart & independent senior developers who are gung ho about building large scale systems that are going to have a big impact on millions of customers. You will:

Responsibilities:

• Lead design and development of products working closely with business team.
• Independently own software components and co-own entire applications with a small group of fellow developers.
• Formally mentor junior software engineers on the team, reviewing design documents, (peer) reviewing code, providing design direction and guidance.
• Build performant, scalable, yet secure, enterprise ready back end architectures that can support millions of users in parallel.
• Establish strong engineering best practices and champion their adoption.

Requirements:

• 4+ years' experience in software product development and delivery.
• Bachelors or Masters degree in engineering (preferably computer science or sister branches) from a reputed institute (preferably IITs, NITs, or other top engineering institutes).
• Strong grasp of CS fundamentals, algorithms and excellent problem-solving abilities.
• All experience should be from good product development or e-commerce background.
• Able to take ownership of working with at least one of mobile or web app teams for complete integration with backend.
• Must have shown good stability in all your previous associations.
• Have strong backend knowledge and cloud development exposure.
• Proficiency in Java, Spring boot, Hibernate, REST API development.
• Worked with at least 1 RDBMS (Mysql preferred).
• NoSql is a plus.
• Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
• Writing high quality code which is made better by unit tests and integration tests is how you work.
• Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
• Knowledge of test driven development and AWS tech stack will be a good plus.

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.
Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

F5 is looking for Software Engineer II with in-depth experience in high scale distributed systems. You will participate in the design and implementation of of our Edge Computing platform that is used to deploy global, scalable and secure applications. Your work includes, but not limited to, Research, design and build highly reliable, available and scalable platforms, API definition, implementation, deployment, operational management, and debugging.

Responsibilities:

• Deliver solutions that will help create, deploy and manage the service components of the platform
• Investigate various open source and close source technologies, components, libraries, tools etc. and help build a highly available, highly scalable and easily manageable system
• Take ownership of software components and   deliver   a   complete   product   satisfying   functional, scale, performance   and manageability requirements.
• Hands-on   coding   in   multiple   languages   while   considering   performance,  scalability, maintainability, and flexibility
• Understanding and exposure to design patterns and coding practices especially as applied to microservices architectures and API design, implementation and management
• Experience in Cloud native providers like MS Azure or AWS or Google Cloud or any major Cloud vendors in the market and their services
• Independently investigate, present options, review and implement completely new functionality
• You will work closely with other development teams, product management, UX, and QA to define and implement a new product offering while ensuring continued functionality.
• Perform code reviews, set coding practices and guidelines within the team
• Ability to implement all phases of a development cycle for a software product from understanding requirements, going through design, development and deploy phases
• Work with geographically distributed teams

Minimum Qualifications:

• Knowledge and experience in highly distributed software systems, ability to understand the nuances and solve problems related to scale, performance and resiliency of such a system
• Experience in programming languages: Golang, Java, Python any objected oriented high level proprietary or open source language with strong programming constructs.
• Good understanding of programming fundamentals & their application to highly scalable web-based systems
• Experience in developing polyglot software using service definition language and framework like gRPC, Thrift, Google Protocol Buffers, OpenAPI etc.
• Must have hands on SQL or No SQL technologies.
• Experience working on CICD methodology and Git based workflow
• Experience in Docker technologies including experience in optimizing Docker image and managing Docker image lifecycle. Experience in orchestration systems like Kubernetes and container technologies like Docker, rkt is a plus
• Excellent written and verbal communication skills
• Strong interpersonal, team building, and mentoring skills
• BS/MS degree in Computer Science or equivalent with 3+ years of software development experience

Work as a member of a team responsible for developing a large-scale, highly available and fault-tolerant SaaS based Leasing & Asset management solution in the commercial real estate space in accordance with established processes. You will apply your knowledge of building scalable, distributed applications and have the opportunity to work with technologies & frameworks such as Ruby on Rails, NodeJS, ReactJS, Heroku, AWS, Postgres DB​

Essential Functions include but are not limited to the following. 

You will be expected to:​

• Contribute to all phases in the software lifecycle – requirements analysis, solution design, development, and deployment
• Maintain high quality standards for the work undertaken and be responsible for the quality of deliverables.
• Ensure assigned projects are developed in accordance with established engineering processes, adhering to scope, schedule constraints and agile project plans
• Guide/mentor the less experienced team members
• Participate in code reviews
• Work effectively as part of a distributed team
• Document the features worked by him/her

Key technical expertise areas expected for this role:

• Strong programming skills in Ruby with clear understanding of Object-Oriented and Functional programming. 
• Experience working with Ruby on Rails framework
• Experience on REST API Programming preferably based on a Microservices Architecture
• Good Understanding of Databases (Postgres) and proficiency in database schema designing & writing efficient SQL Queries. 
• Strong troubleshooting skills
• Demonstrable ability to learn new programming languages and frameworks quickly
• Experience with distributed systems with specific focus on security and scalability
• Experience with modern cloud technologies such as AWS

 Additional areas that would add value:

• Experience working with Cloud Service providers & platforms like AWS, Heroku 
• Strong understanding of Design Patterns & their application in system design
• Test Driven & Behavior Driven Development
• Automated Unit/Integration testing
• Using DevOps & Infrastructure tooling such as GoCD/Jenkins, Git
• Frontend web development with JavaScript frameworks like React
• Experience working on  projects, preferably in the real estate domain
• Experience working with Virtualization and Containerization technologies including Docker, Kubernetes.
• Experience working in Agile Scrum/Kanban methodologies
• Experience working with Linux and Shell scripting

Education: 

• Bachelors or Master’s in Computer Science or related fields