Principal Engineer

Job Title : Golang Backend Developer

Experience : 3+ Years

Location : Bangalore (Work From Office)

Notice Period : Immediate to 15 Days (Strict)

🚀 About the Role :

We are looking for a Backend Developer with strong Golang expertise to build scalable, high-performance systems. You will play a key role in designing microservices, handling concurrent workloads, and developing robust backend architectures for production-scale applications.

🔥 Mandatory Skills :

Strong hands-on experience in Golang, Microservices Architecture, REST APIs, Concurrency (goroutines & channels), PostgreSQL/MySQL, Redis, Messaging Systems (Kafka/RabbitMQ/SQS), AWS/GCP, Docker & Kubernetes, and CI/CD pipelines.

🛠️ Key Responsibilities :

• Design, develop, and maintain scalable backend services using Golang.
• Build high-performance REST APIs and microservices.
• Develop concurrent and distributed systems using goroutines and channels.
• Implement event-driven and asynchronous architectures.
• Optimize system performance, latency, and database efficiency.
• Integrate messaging systems and caching layers for scalability.
• Collaborate with cross-functional teams for end-to-end delivery.
• Ensure high code quality, testing, and system reliability.
• Monitor, debug, and enhance production systems.

Required Skills & Qualifications :

• Strong hands-on experience in Golang (must-have).
• Solid understanding of Concurrency in Go (goroutines, channels, worker pools).
• Experience with Microservices Architecture.
• Strong knowledge of RESTful API development.
• Proficiency in Databases : PostgreSQL / MySQL / MongoDB.
• Hands-on experience with Redis (caching).
• Experience with Messaging Systems: Kafka / RabbitMQ / SQS.
• Hands-on experience with AWS or GCP.
• Experience with Docker & Kubernetes.
• Familiarity with CI/CD pipelines (GitHub Actions, Jenkins, etc.).
• Strong understanding of Data Structures, Algorithms, and System Design.

Good to Have :

• Experience with gRPC-based microservices.
• Familiarity with monitoring tools like Prometheus, Grafana.
• Exposure to high-scale distributed systems.
• Experience with event-driven architectures.
• Knowledge of security practices (JWT, OAuth2, RBAC).

What We’re Looking For :

• Strong problem-solving and debugging skills.
• Ownership mindset with end-to-end feature delivery.
• Ability to write clean, efficient, and maintainable code.
• Comfortable working in a fast-paced, high-growth environment.

You can also register yourself on the below platform to proceed further :

https://hireinsecond.com/jobseeker-register

Job Title : Senior API Developer (Spring Boot Microservices + Apigee/APIM)

Experience : 6+ Years

Employment Type : Contract

Role Level : Senior

Project : Leading South Africa Telecommunications Operator

Department : Application & Experience Engineering

Job Overview :

We are seeking a Senior API Developer with strong expertise in Spring Boot Microservices and API Gateway technologies (Apigee/Azure API Management) to design, develop, and manage secure, scalable APIs for enterprise applications and partner integrations.

The ideal candidate will build high-performance APIs exposing business insights, analytics, and AI/ML services while ensuring security, scalability, and reliability.

Mandatory Skills :

Java, Spring Boot, Microservices, REST APIs, Apigee or Azure API Management (APIM), OAuth2, OpenID Connect (OIDC), JWT, Docker, Kubernetes (AKS), API Security, API Gateway, Microservices Architecture, Kafka (Preferred).

Key Responsibilities :

• Design, develop, and maintain secure RESTful APIs using Spring Boot Microservices.
• Build scalable microservices following best practices for resilience, performance, and maintainability.
• Configure and manage APIs using Apigee or Azure API Management (APIM), including authentication, rate limiting, traffic management, and analytics.
• Implement API security using OAuth2, OpenID Connect (OIDC), API Keys, and Mutual TLS.
• Collaborate with Full Stack, AI/ML, Solution Architecture, and Cybersecurity teams to deliver enterprise-grade integrations.
• Support external partner integrations and internal enterprise systems through well-designed API contracts.
• Optimize API performance, monitor usage, troubleshoot issues, and maintain API lifecycle, versioning, and documentation.

Required Skills :

• 6+ years of experience in Backend/API Development.
• Strong hands-on experience with Java, Spring Boot, and Microservices Architecture.
• Expertise in Apigee or Azure API Management (APIM).
• Strong understanding of REST APIs, API versioning, and API lifecycle management.
• Experience implementing OAuth2, OpenID Connect (OIDC), JWT, API Security, and Authentication.
• Experience with Docker, Kubernetes (AKS), and Cloud-native deployments.
• Familiarity with Kafka or other event-driven messaging platforms is a plus.
• Excellent understanding of enterprise integration patterns and scalable API design.

Good to Have :

• Experience with Azure Cloud.
• Telecom, Banking, FinTech, or other regulated industry experience.
• Certifications in Apigee, Microsoft Azure, or Microservices Architecture.

Greetings from Wissen Technology!

We are hiring Java Developers for Mumbai location.

Exp - 4 - 8 years

Location - Mumbai (Goregaon) - Hybrid

Notice Period - immediate or serving notice period only

Interview Process - Initial rounds virtual + Final round F2F

Software Engineer/Senior Software Engineer/Lead Engineer-Java

· Experience in Core Java 5.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux

· Possess good architectural knowledge and be aware of enterprise application design patterns.

· Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.

· Good development experience with RDBMS

· Good knowledge of multi-threading and high volume server side development

Basic working knowledge of Unix/Linux

· Excellent problem solving and coding skills in Java

· Strong interpersonal, communication and analytical skills.

· Should have the ability to express their design ideas and thoughts.

Job Brief-

·        Understand product requirements and come up with solution approaches

·        Build and enhance large scale domain centric applications

·        Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

Job Description:

As per our conversation, please find below the job description for your review. 

·       Strong written/verbal communication skills

·       Minimum 5-14 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, Hash Table, 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.

·       While you may already know about Wissen and the company history, here is a quick rundown for you.

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2.5 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-base

What you'll do?

●    Develop on server-side cloud software using a serverless approach (AWS).

●    Work hands-on on bringing to life IoT and Edge architectures and applications

●    Work with teams on delivering key features and performance targets.

Who You Are?

●    Passionate individual who loves to develop scalable backend

●    Strong programming capabilities

●    Understanding of cloud architecture and protocols.

●    Clear thought process, believe in simplifying rather than complicating

●    Argue and fight over opinions. Believe in always choosing the best

You Should Have

●    Experience on NoSQL Databases and designing REST API.

●    Strong fundamentals of Data structure and algorithm.

●    Done related projects during graduation/post-graduation.

●    Experience on AWS, AWS Lambda, AWS IoT Core, AWS Cloud Watch is a big plus.

Proficiency in Python 

Our client is a rapid growth stage Edtech start-up focused on solving the teacher shortage crisis in the US education system using technology by bringing teachers to the classrooms and giving them access to the right tools to teach students in a highly engaging manner.

They have a development center in Mumbai and they are looking to scale up the teams in Pune and Bangalore as well.

What does the role entail:

● Lead User Stories and guide senior/software engineers in the development process

● Understand architecture principles, design patterns and implement them from architectural artifacts.

● Provide effort estimation of assigned work and be able to complete as per the estimations and timelines

● Write clean, maintainable, and efficient code including unit tests and integration tests to ensure software quality

● Collaborate with cross-functional teams to analyze requirements, design solutions, and implement new features

● Participate in design and code reviews

● Ability to resolve performance issues

● Mentor junior software engineers and help them grow their technical skills

Must Have Skills:

● B.E/B.Tech in computer science

● 8-11 years of experience

● Hands-on experience following skills

MS Technologies: NET CORE 5+, C#

Backend : MSSQL /MySQL/Postgres 

● Good understanding of Cloud technologies like Azure/AWS.

● Good understanding of Design Principles, Design patterns and Microservices Architecture.

● Excellent problem-solving, critical thinking, and communication skills

● Worked in an Agile software development environment

Must understand full stack development frameworks including knowledge of building scalable APIs, interfaces, software components, schema design, availability, and latency preferably in a cloud environment.

● Worked in a fast-paced environment preferably in a tech driven startup

● Understanding of different types of architectures.

• Apply fundamental software engineering design principles and write effective, scalable code.
• Develop back-end components to improve responsiveness and overall performance
• Strong understanding of multi-threading, synchronization & performance analysis of web applications
• Highly experienced with developing RESTful API’s
• Integrate user-facing elements into applications
• Develop unit tests, automation and debug code
• Improve & maintain the functionality of existing systems
• Implement security and data protection solutions
• Understand the big picture, coordinate with internal teams to understand user requirements and provide technical solutions

• Bachelor’s degree in Computer Science, Information Technology or relevant field.
• 5+ work experience as a Python Developer
• Expertise in Django or at least one other popular Python web framework
• (like Flask or Pyramid)
• Excellent Python 3 development & debugging skills
• Knowledge of object oriented analysis & design as well as object-relational mapping (ORM) techniques
• Strong understanding microservices architecture & design patterns
• Strong understanding of RESTful API design principles, including good
• documentation of API using Swagger/OpenAPI specifications
• Familiarity with GIT
• Familiarity with microservices development & deployment, including CI/CD pipelines
• (e.g. Jenkins) and containerization platforms (e.g, Docker)
• Familiarity with front-end technologies (like JavaScript and HTML5)
• Excellent team spirit & exceptional problem-solving skills

Responsibilities

Understand systems enabling third party integration 

Translate business requirements to the APIs and SDKs exposed by these systems. Figure out the optimum interfaces to interact with these. 

Build generic connectors to interact with these technologies. 

Design, implement, deploy and maintain the connectors. 

Minimum Qualifications 

Bachelor’s degree in Computer Science or related fields. 

Experience needs to be around 8+ years 

Strong problem-solving skills. 

Ability to understand the technology and its APIs in quick time. 

Strong design pattern fundamentals. 

Good core java skills like Multi-threading, collection framework. 

Good communication and mentorship skills 

Ability to put together architecture diagrams and designs 

Company Description

SteelEye is a fast growing FinTech company based in London and has offices in Bangalore and Paris, that offers a data platform to help financial institutions such as Investment Banks, Hedge Funds, Brokerage Firms, Asset Management Firms to comply with financial regulations in the European Union. Our clients can aggregate, search, surveillance and report on trade, communications and market data. SteelEye also enables customers to gain powerful insights from their data, helping them to trade with greater efficiency and profitability.

The company has a highly experienced management team and a strong board, who have decades of technology and management experience and worked in senior positions at many leading international financial businesses.

We are looking to hire a seasoned Sr API Developer to join us as we start on our next phase of growth. We have a culture of openness, collaboration, and the passion to get things done whilst appreciating the importance of a good work life balance.
Being part of a start-up can be equally exciting as it is challenging. You will be part of the SteelEye team not just because of your talent but also because of your entrepreneurial flare which we thrive on at SteelEye. This means we want you to be curious, contribute, ask questions and share ideas. We encourage you to get involved in helping shape our business.

SteelEye is a fast growing FinTech company based in London and has offices in Bangalore and Paris, that offers a data platform to help financial institutions such as Investment Banks, Hedge Funds, Brokerage Firms, Asset Management Firms to comply with financial regulations in the European Union. Our clients can aggregate, search, surveillance and report on trade, communications and market data. SteelEye also enables customers to gain powerful insights from their data, helping them to trade with greater efficiency and profitability.

The company has a highly experienced management team and a strong board, who have decades of technology and management experience and worked in senior positions at many leading international financial businesses.

We are looking to hire a seasoned Sr API Developer to join us as we start on our next phase of growth. We have a culture of openness, collaboration, and the passion to get things done whilst appreciating the importance of a good work life balance.
Being part of a start-up can be equally exciting as it is challenging. You will be part of the SteelEye team not just because of your talent but also because of your entrepreneurial flare which we thrive on at SteelEye. This means we want you to be curious, contribute, ask questions and share ideas. We encourage you to get involved in helping shape our business.

Job Description

What you’ll do

• Develop new features and functionality in SteelEye's best breed SaaS application
• Work on setup API Developer for our growing SaaS product
• Ensure the software is up-to-date with latest technologies
• Triage issues and enhance core features of our existing API's for rapidly growing client base
• Design and architech our API layer solving problems around scale and performance
• Be part of great team building a fantastic product!

What we’re looking for

• You are experienced Python Developer, with minimum 5 years in commercial Python experience
• You have experience building REST-based API's using Flask, Django or FastAPI in a production environment
• You have excellent knowledge of data structures, software design patterns and software architecture
• You are comfortable working in a fast-paced environment and can adapt to changing requirements
• You have experience with code versioning (Git) and CI/CD (Jenkins, Circle, etc..) tools
• Familiarity/Experience with Elasticsearch is a huge plus
• Familiarity/Experience with FastAPI nice to have
• You are experienced Python Developer, with minimum 5 years in commercial Python experience
• You have experience building REST-based API's using Flask, Django or FastAPI in a production environment
• You have excellent knowledge of data structures, software design patterns and software architecture
• You are comfortable working in a fast-paced environment and can adapt to changing requirements
• You have experience with code versioning (Git) and CI/CD (Jenkins, Circle, etc..) tools
• Familiarity/Experience with Elasticsearch is a huge plus
• Familiarity/Experience with FastAPI nice to have