
What would make you a good fit?
- You’re both relentless and kind, and don’t see these as being mutually exclusive
- You have a self-directed learning style, an insatiable curiosity, and a hands-on execution mindset
- You have deep experience working with product and engineering teams to launch backend services that power end-user applications
- You have deep experience in Python and the related tools and frameworks
- You have deep experience working with large datasets and relational databases, specifically PostgreSQL
- You have experience with microservices architecture, Docker, and Kubernetes
- You continuously raise the bar on development practices such as code quality tools, unit testing coverage, build tools, etc.
- You obsess about correctness, DRY development, reducing cognitive complexity, and performance
- You have excellent writing and speaking skills with a talent for applying technical solutions to customer problem statements
Must-Have Qualifications
- 5+ years of experience building RESTful services
- 2+ years of experience in Django Rest Framework, Flask, and/or FastAPI
- 3+ years of experience with SQL and Postgres to manage and analyze data
- Expert level skills using a debugging tool and developing unit tests
- Experience in Docker, Kubernetes, and microservices architecture
- Prior startup experience and enjoy taking on difficult challenges and broad responsibilities
- Track-record of delivering reliable and scalable RESTful services from requirements to production
- You’ve partnered with devops to deliver high-performant backend solutions to production
- You naturally think quantitatively about problems and work backward from a customer outcome
What’ll make you stand out (but not required)
- Terraform and AWS experience
- Experience creating technical design documents
- You have a strong connection to finance teams or closely related domains, the challenges they face, and deep appreciation for their aspirations

Similar jobs
Job Title: Backend Developer - Fintech
Responsibilities:
- Architect and Develop: Design, build, and maintain secure, scalable, and efficient RESTful APIs using Django Rest Framework, ensuring compliance with regulatory requirements.
- Collaborate: Work closely with cross-functional teams to gather requirements and translate them into technical specifications and actionable plans.
- Debug and Resolve: Identify and fix backend issues and bugs, ensuring a seamless user experience for financial applications.
- Optimize Systems: Continuously enhance backend systems for performance, scalability, and resource efficiency.
- Code Quality: Uphold high standards of code quality, organization, and implement automated testing processes to meet industry standards.
- Stay Updated: Keep abreast of fintech industry trends, technological advancements, and regulatory updates to continually improve backend architecture.
Requirements:
- Experience: 5+ years of proven experience in backend development with a strong skill set in Python and Django.
- API Development: Extensive experience in developing secure and compliant RESTful APIs using Django Rest Framework.
- Database Proficiency: In-depth knowledge of MySQL for database design, optimization, and maintenance; experience with MongoDB is a plus.
- DevOps: Proficiency in DevOps practices, including CI/CD pipelines, infrastructure as code, and containerization.
- Cloud Services: Exposure to cloud services (AWS, GCP) with an emphasis on security and regulatory compliance.
- Software Principles: Solid understanding of software development principles, design patterns, and best practices in the fintech domain.
- Agile Environment: Experience working in an Agile/Scrum development environment.
- Problem-Solving: Excellent problem-solving and analytical skills, with keen attention to detail.
- Collaboration: Strong communication and collaboration skills to work effectively in a team-oriented fintech environment.
- Version Control: Proficiency with Git for version control and collaborative development.
Preferred Skills:
- Asynchronous Processing: Familiarity with asynchronous task processing using Celery or similar technologies, especially in financial transaction processing.
- AWS Expertise: Strong knowledge of AWS services and infrastructure, including EC2, S3, RDS, Lambda, with a focus on security and compliance.
- GCP Expertise : VPC, Virtual Machines, SQL, IP whitelisting
- Caching Mechanisms: Experience with caching mechanisms (e.g., Redis) for optimizing real-time data access and processing.
- Continuous Learning: Eagerness to learn and adapt, staying updated with emerging technologies and methodologies in backend development and the fintech industry.
● Design and deliver scalable web services, APIs, and backend data modules.
Understand requirements and develop reusable code using design patterns &
component architecture and write unit test cases.
● Collaborate with product management and engineering teams to elicit &
understand their requirements & challenges and develop potential solutions
● Stay current with the latest tools, technology ideas, and methodologies; share
knowledge by clearly articulating results and ideas to key decision-makers.
Requirements
● 3-6 years of strong experience in developing highly scalable backend and
middle tier. BS/MS in Computer Science or equivalent from premier institutes
Strong in problem-solving, data structures, and algorithm design. Strong
experience in system architecture, Web services development, highly scalable
distributed applications.
● Good in large data systems such as Hadoop, Map Reduce, NoSQL Cassandra, etc.. Fluency in Java, Spring, Hibernate, J2EE, REST Services Ability to deliver code
quickly from given scenarios in a fast-paced start-up environment.
● Attention to detail. Strong communication and collaboration skills.
· 3+ yrs of experience in product development (Preferring SaaS based)
· Must have experience in Java web-based application development
· Hands on development experience on Java/J2EE, Springboot, Spring, Struts, Hibernate, REST Services
· Experience on HTML, JavaScript, JQuery
· Hands on experience on database-writing queries/procedures
· Experience on SVN,GIT,
· Knowledge of Server configuration
· Knowledge of cloud preferably AWS
- Work on a chatbot framework/architecture using an open-source tool or library
- Implement Natural Language Processing (NLP) for chatbots
- Integration of chatbots with Management Dashboards and CRMs
- Resolve complex technical design issues by analyzing the logs, debugging code, and identifying technical issues/challenges/bugs in the process
- Deploy applications using CI/CD tools
- Designing and building highly scalable AI and ML solutions
- Ability to understand business requirements and translate them into technical requirements
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment.
- Experience with bot multi-lingual utilization (preferred)
- Experience with bot human escalation
- Ability to optimize applications for maximum speed and scalability
- Come up with new approaches and ideas to improve the current performance of Chatbots across multiple domains and build a highly personalized user experience.
QUALIFICATIONS : B. Tech/ B.E. /M. Tech or a related technical discipline from reputed universities
SKILLS REQUIRED :
- Minimum 3+ years- of experience in Chatbot Development using the Rasa open-source framework.
- Hands-on experience building and deploying chatbots.
- Experience in Conversational AI platforms for enterprises using ML and Deep Learning.
- Experience with both text to speech and vice versa transformation incorporation.
- Should have a good understanding of various Chatbot frameworks/platforms/libraries.
- Build and evolve/train the NLP platform from natural language text data being gathered from users on a daily basis.
- Code using primarily Python.
- Experience with bots for platforms like Facebook Messenger, Slack, Twitter, WhatsApp, etc.
- Knowledge of digital assistants such as Amazon Alexa, Google Assistant, etc.
- Experience in applying different NLP techniques to problems such as text. classification, text summarization, question & answering, information retrieval, knowledge extraction, and conversational bots design potentially with both traditional & Deep Learning
- Techniques - NLP Skills/Tools: NLP, HMM, MEMM, P/LSA, CRF, LDA, Semantic Hashing, Word2Vec, Seq2Seq, spaCy, Nltk, Gensim, Core NLP, NLU, NLG, etc.
- Should be familiar with these terms: Tokenization, N-Grams, Stemmers, lemmatization, Part of speech tagging, entity resolution, ontology, lexicology, phonetics, intents, entities, and context.
- Knowledge of SQL and NoSQL Databases such as MySQL, MongoDB, Cassandra, Redis, PostgreSQL
- Experience with working on public cloud services such as Digital Ocean, AWS, Azure, or GCP.
- Knowledge of Linux shell commands.
- Integration with Chat/Social software like Facebook Messenger, Twitter, SMS.
- Integration with Enterprise systems like Microsoft Dynamics CRM, Salesforce, Zendesk, Zoho, etc.
MUST HAVE :
- Strong foundation in the python programming language.
- Experience with various chatbot frameworks especially Rasa and Dialogflow.
- Strong understanding of other AI tools and applications like TensorFlow, Spacy, and Google Cloud ML is a BIG plus.
- Experience with RESTful services.
- Good understanding of HTTPS and Enterprise security.
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a senior software engineer, you will work on our python based ORM and applications that scales to handle millions of transactions every hour. This is mission critical software and your primary focus will be building robust and scalable solutions that are easy to maintain.
In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product are important.
What You’ll Do:
- Own definition and implementation of API interfaces (REST and GraphQL). We take pride in our 100% open API with over 600 endpoints.
- Implement simple solutions to complex business logic that enables our merchants to manage financials, orders and shipments across millions of transactions.
- Build reusable components and packages for future use.
- Translate specs and user stories into reviewable, test covered patches.
- Peer review code and refactor existing code.
- Integrate with our eCommerce partners (Shopify, BigCommerce, Amazon), shipping partners (UPS, USPS, FedEx, DHL) and EDI.
- Manage Kubernetes and Docker based global deployment of our infrastructure.
Requirements
We’re Looking for Someone With:
- Experience working with ORMs like SQLAlchemy or Django (2-3 years)
- Experience with SQL and databases (Postgres preferred)
- Experience in developing large server side applications and microservices
- Ability to create high quality code
- Experience with python testing tools (pytest) and test automation
- Familiarity with code versioning tools like GIT
- Strong sense of ownership and leadership quality
- Experienced in the tools of our web stack- Python, Celery, Postgres, Redis, RabbitMQ
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Experience with ReactJS, Google Cloud, Heroku
- Cloud deployment and scaling experience
We're looking for someone to join a team dedicated to building performant APIs and backend services that deal with large volumes of data for the company's flagship, global consumer product. Small, high-impact teams require conscious planning and decision-making when it comes to design, architecture, and product features. So, it's essential that you enjoy working in such an environment.
We're a team that cares about simplicity and being able to build reliable, deterministic systems and platforms. Hence, our choice of tooling is usually battle-tested reliable software with a robust test suite.
How we work
- You won't deal with the hustle culture. We're focused on building well-thought-out, stable and reliable software and we try our best to ensure everyone understands the big picture and the immediate goals.
- We work a solid 6-8 hour days and don't slave away 24/7.
- We're a remote engineering team. This makes effective communication extremely important. Our teams have benefitted greatly from good written communication. This includes everything from the product specification to the API spec. We spend a lot of time writing READMEs. As a result our engineers work with greater clarity and planning.
- We deploy several times a day and rely on a good test suite to ensure we're not making life hard for our colleagues.
- We don't expect anyone to know everything, but we are curious and learn along the way.
- We learn about the fitness space and what it means to really be fit and not just Instagram fit.
The Python Backend Engineer position may be a good fit for you if:
- You have 3 (or more) years of experience building and maintaining cloud applications.
- You have built APIs with Python, Flask, Django or FastAPI before.
- You have experience working with relational databases like PostgresSQL or MySQL and have spent time writing SQL queries for large datasets.
- Experience in writing Unit tests with pytest.
- You have worked with Docker, docker-compose.
- Familiarity with the AWS ECS stack.
We want you to care about
- Good object oriented design
- Performant APIs
- Analysing why queries are slow and how to go about improving them.
- Understanding DNS, Load balancing, Caching and Hashing.
- Customer data and privacy.
Our API Stack services use:
- Python 3.8+, Typescript
- FastAPI, Flask, HapiJs
- PostgresSQL, MySQL
- Redis
- Celery
- Pytest, Jest for unit testing.
- Gitlab CI/CD
- Amazon ECS container services
Rejolut is one of the award-winning fastest-growing emerging tech company which is working on leading technology like Blockchian, ML & AI, Complex mobile & web apps, IoT etc.
The ideal candidate will be responsible for developing a highly scalable and secure code.
Responsibilities:-
-Able to take the Extreme Ownership of modules/product/projects
-Able to learn & implement new technology/framework/library at God Speed
-Able to come with an optimal solution for the business problem
-Can handle calls with the client & customer to know their feedback
-Writing clean code & able to dig into other's code or open-source code
-Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Maintain product roadmap, release schedules, and architectural standards that ensure alignment with business objectives.
- Mitigate risks and problems identified in providing the solution.- Keep an eye out for technology trends, open-source projects that can be used
Desired Candidate Profile:-
- Represent the technological agenda in staff meetings and when making hiring decisions
- Flexible to adapting & introducing new and latest technologies to the organization
- Maintain current knowledge of technology landscape and developments
- Innovation & Optimizing R&D.
- Defining the software technology strategy, architecture, and road-map.
- Would love to do more coding yourself, but accept that you can bring the most value by helping others to excel.
- Should have built large scale applications with modern web frameworks & technologies
-Should be a fast thinker, hands-on manager, and strong communicator and think and act like an entrepreneur
-Consolidate our technology platforms and create plans for each Track, analyze and monitor technology performance metrics
-Take the initiative in thought leadership, innovation, and creativity
-Spearhead IT projects to increase our market reach and improve our USP
-Oversee all system design and changes in system architecture
-Technical knowledge (NOT All but would be happy to take someone with max. Skills knowledge)
-Fullstack (Web), Python, Machine Learning, BlockChain, RoR, ReactJS, NodeJS, mean stack, MernStack, Front End, Mobility, ReactNative, React JS, Javascript, etc
Culture
- Fast-paced, intellectually stimulating, steep learning, and growth
- Close-knit, hardworking, supportive colleagues
- Challenging work
- Flat organization with no hierarchy
- If you like problem-solving, and love the latest technology, there are very few better places
How we are different
-We are a young and dynamic team who are obsessed with solving the business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to the business problem rather than technology
Why to join us
-We provide a huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry
- Hands-on programmer with ability to write idiomatic code in Java
- Strong preference to write automated unit & integration tests
- Prior experience in designing & deploying Microservices and performant REST APIs
- Good understanding of and experience in Continuous Integration / Continuous Delivery
- Hand-on experience using one of the server-side Java frameworks such as Spring Boot
- Excellent communication skills
Nice to have
- Experience working with AWS or other Cloud providers
- Experience working in Event-Driven systems (using Apache Kafka or something similar)
- Exposure to Angular or React









