Top Backend Jobs in Kolkata

18 Days AgoSaved
Remote
Kolkata, WB
Expert/Leader
Expert/Leader
Software
Leads the design and delivery of scalable backend features for a global telco SaaS platform. Provides hands-on technical leadership, translates business requirements into detailed designs, mentors engineering teams, and ensures performance, reliability, security, observability, and compliance. Owns feature delivery, supports production issues, maintains technical documentation, and collaborates with product, architecture, security, and distributed engineering teams.
Top Skills: CSSDevOpsDockerDomain-Driven DesignElasticsearchGoJavaJavaScriptJqueryKibanaKubernetesMicroservices ArchitectureMongoDBMySQLNoSQLObservabilityPostgresRabbitMQReactRedisSpring BootSQL
Expert/Leader
Software
Build and support scalable backend features, services, reusable libraries, and technology platforms. Own service delivery, reliability, security, scalability, observability, testing, incident resolution, and operational readiness. Develop RESTful microservices, manage cloud-based applications, drive engineering best practices, and provide L3 support. Collaborate with product and business stakeholders while mentoring engineers, removing technical blockers, and ensuring milestones, service-level objectives, and software quality standards are achieved.
Top Skills: Cloud ServicesElasticsearchGoJavaKibanaMicroservicesMongoDBMySQLNode.jsNoSQLPostgresRabbitMQRedisRestful Web ServicesSpring BootSQL
19 Days AgoSaved
Remote
Kolkata, WB
Senior level
Senior level
Information Technology • Marketing Tech • Software • Design
Lead the architecture and implementation of scalable, secure, high-performance, multi-region backend systems using Node.js and TypeScript. Drive reliability, performance, security, testing, observability, deployment consistency, and incident response across teams. Design distributed architectures, GraphQL APIs, authentication systems, serverless applications, and multi-cloud solutions. Influence technical strategy, optimize costs and latency, mentor developers, facilitate cross-functional alignment, and translate complex engineering initiatives into business outcomes.
Top Skills: ArtilleryAttribute-Based Access ControlBddCi/CdConnection PoolingContent Delivery NetworksCqrsDatabase ReplicationDatabase ShardingElk StackEvent-Driven ArchitectureGrafanaGraphQLGraphql FederationGraphql Schema StitchingK6Load BalancingMulti-Factor AuthenticationMutation TestingNode.jsNode.Js StreamsOpenid ConnectPrometheusPulumiServer-Side CachingServerlessSingle Sign-OnTddTerraformTypescript
20 Days AgoSaved
In-Office or Remote
Kolkata, WB
Mid level
Mid level
Blockchain • Fintech • Software • Cryptocurrency • Metaverse
Design, build, and operate Java backend services, REST APIs, compliance capabilities, and analytics products. Develop blockchain data pipelines, model relational and NoSQL data, optimize queries, and improve production reliability, observability, and performance. Translate regulatory requirements into technical solutions while collaborating with compliance and product specialists. The role may also involve AWS infrastructure, Kafka, crypto integrations, and AI-assisted development tools.
Top Skills: Amazon CloudwatchAmazon RdsAmazon S3Amazon SqsAws EcsAws EksAws IamBlockchainClaude CodeCodexJavaJvmKafkaNode RpcNoSQLRest ApisSpring BootSQL
25 Days AgoSaved
Remote
Kolkata, WB
Junior
Junior
Greentech • Energy • Solar • Renewable Energy
Develop and maintain backend applications for field team operations. Responsibilities include designing systems and data models, resolving bugs and bottlenecks, writing unit-tested reusable code, integrating internal and external tools, and collaborating with product managers on system design. The role requires Core Java, object-oriented programming, SQL databases, web-service integration, and RESTful APIs, with Git and Spring or Hibernate experience preferred.
Top Skills: CSSGitHibernateHTMLJavaJavaScriptJSONMySQLRestSoapSpringSQLXML
One Month AgoSaved
Remote
Kolkata, WB
Senior level
Senior level
Artificial Intelligence • Insurance • Software • Automation
Provide technical leadership and hands-on engineering across AI, data, backend, and frontend systems. Drive architecture, remove technical risks, set engineering standards, mentor senior engineers, and influence cross-team technical direction.
Top Skills: AIBackendData PlatformsFrontendMlSingle-TenantSoc2 Type Ii
One Month AgoSaved
Remote
Kolkata, WB
Mid level
Mid level
Agency • Information Technology
Design, develop, test, and maintain scalable backend services, APIs, and microservices. Optimize databases and data models, integrate third-party services and payment gateways, implement security controls, troubleshoot production issues, and support CI/CD deployments. Collaborate with frontend, product, and QA teams; participate in code reviews and technical design discussions; and produce clean, documented, high-performance software.
Top Skills: Agile/ScrumAWSAzureC#Ci/CdDevOpsDockerGitGoGCPJavaKubernetesMicroservicesMongoDBMySQLNode.jsPostgresPythonRedisRest Apis
One Month AgoSaved
In-Office
Kolkata, WB
Junior
Junior
Artificial Intelligence • Software • Automation
Develop and maintain scalable backend services for an AI-native facility management platform. Responsibilities include building high-performance REST APIs with Python and FastAPI, managing MongoDB data, integrating third-party APIs, processing JSON and CSV data, and owning services through deployment. The role involves collaboration with product and engineering teams to deliver reliable product capabilities and improve performance, scalability, and maintainability.
Top Skills: Ai Api IntegrationAsync PythonBackground JobsBeanie OdmCsvFastapiJSONJwtLlm IntegrationMcpMongoDBMongoengineOauthPython 3.XRestful ApisVector Databases
One Month AgoSaved
Remote
Kolkata, WB
Entry level
Entry level
Fintech • Financial Services
Develop and maintain fintech applications using Java and Spring Boot. Design secure RESTful APIs for financial transactions, translate financial workflows into technical solutions, ensure PCI DSS and GDPR compliance, and optimize high-volume, low-latency systems. Participate in Agile ceremonies, code reviews, CI/CD, Docker, cloud, and DevOps practices while collaborating with product managers, analysts, business units, leaders, associates, and clients.
Top Skills: AWSCi/CdDockerGdprJavaJdkMicroservicesMongoDBMultithreadingPci DssPostgresRest ApisSpring BootSQL
One Month AgoSaved
Remote
Kolkata, WB
Senior level
Senior level
Information Technology • Software • Business Intelligence
Design, develop, and maintain Python backend services, RESTful APIs, and scalable microservices. Deploy and manage Azure cloud solutions, CI/CD pipelines, automated testing, Docker, and Kubernetes environments. Collaborate in Agile/Scrum teams through code reviews, planning, and architecture discussions. Apply database, data modeling, cloud architecture, scalability, security, and performance optimization knowledge, with potential work involving Databricks, Golang, React, infrastructure as code, and event-driven systems.
Top Skills: Arm TemplatesAzure Service BusBicepCi/CdDatabricksDjangoDockerFastapiGCPGitGoKafkaKubernetesMicroservicesAzureNoSQLPythonReactRestful ApisSQLTerraform
Reposted One Month AgoSaved
In-Office
Kolkata, WB
Senior level
Senior level
Fintech • Payments • Financial Services
Seeking a skilled Backend Developer to build efficient systems using ExpressJS and manage PostgreSQL databases. Responsibilities include API development, database optimization, and team collaboration.
Top Skills: AWSAzureDockerExpressjsGCPGitKubernetesNode.jsPostgres
Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Senior level
Senior level
Blockchain • Fintech • Software • Cryptocurrency • Metaverse
Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.
Top Skills: Apache (Open-Source Projects)BenchmarkingJavaKafkaLinuxMachine LearningMicroservicesNoSQLProfilingRabbitMQRestful ApisSpring BootSQL
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Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Mid level
Mid level
Artificial Intelligence • Logistics
Design, build, and maintain backend APIs and services for a real-time supply chain visibility platform. Own system architecture, real-time event ingestion, data normalization, ML integration, monitoring, and production debugging while collaborating with Product and Data Science to deliver scalable, high-availability features.
Top Skills: Amazon Web Services (Aws)Ci/CdClaudeCursorDockerElasticsearchFlaskGitGithub CopilotMachine LearningPythonRestful ApisSpark
One Month AgoSaved
Remote
Kolkata, WB
Expert/Leader
Expert/Leader
Software
Lead and mentor an engineering team while defining technical roadmaps, managing hiring and resource allocation, and overseeing project delivery. Build and maintain enterprise applications using Java Spring and React, guide cross-functional requirements, conduct code reviews, troubleshoot performance issues, and provide client-facing technical leadership. The role combines hands-on software engineering with people management and strategic technical oversight.
Top Skills: AWSAzureJavaNoSQLReactRestful ApisSpring FrameworkSQL
One Month AgoSaved
Remote
Kolkata, WB
Senior level
Senior level
Information Technology • Software • Consulting
Design and maintain scalable Java and Spring Boot backend services, REST APIs, microservices, and event-driven systems. Build cloud-native applications using Docker, Kubernetes, and AWS while ensuring reliability, security, observability, and performance. Use AI-assisted development tools for coding, testing, debugging, documentation, and reviews. Participate in architecture discussions, production support, incident response, and on-call rotations. Collaborate across engineering and product teams and mentor other engineers.
Top Skills: Agile/ScrumAWSCi/CdClaude CodeCodexCursorDevOpsDockerGithub CopilotJavaKiroKubernetesMicroservicesNosql DatabasesReactRelational DatabasesRestful ApisSpring BootWindsurf
Reposted One Month AgoSaved
Remote
Kolkata, WB
Mid level
Mid level
Information Technology
Develop, test, and deploy Java/Scala microservices for supply-chain-finance modules. Build Spark batch/streaming jobs, design Kafka event pipelines, integrate bank/ERP systems via Talend/REST, and produce Jasper reports. Maintain Kubernetes deployments, ensure ≥80% unit-test coverage, troubleshoot via Elasticsearch and Prometheus/Grafana.
Top Skills: ActivemqAkka ActorsAkka StreamsSparkDockerElasticsearchFlywayGitGitflowGitlab CiGradleGrafanaGroovyHelmHibernateJasper ReportsJava 11Java 17JenkinsJIRAJpaJunit 5KafkaKafka Streams ApiKubernetesLiquibaseMockitoMongoDBOraclePlay FrameworkPostgresPrometheusPythonRabbitMQRest-AssuredRestful ApisScalaScalatestSonarqubeSpecs2SpockSpring BatchSpring Boot 3.XSpring Cloud GatewaySQLTalendTerraform
Reposted One Month AgoSaved
Remote
Kolkata, WB
Mid level
Mid level
Software
The Node JS Developer will enhance integrations, improve reliability, expand capabilities, and contribute to open-source innovations while ensuring high-quality Node applications.
Top Skills: AWSDatadogDjangoExpress.JsGitKubernetesNestjsNode.jsPgadminPostgresPostmanPytestPythonRabbitMQRedisSentryTypescript
Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Senior level
Senior level
Machine Learning • Other
The Backend Software Engineer will develop and maintain backend systems for data processing related to coffee farming, utilizing Python and PostgreSQL. Responsibilities include feature development, problem-solving, and adapting systems to regulatory changes while ensuring system resilience.
Top Skills: AWSCi/CdDockerPostgresPostgresql/PostgisPythonTerraform
Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Senior level
Senior level
Information Technology • Internet of Things
Lead backend architecture and build scalable, high-concurrency services and APIs (Node.js) powering web and mobile. Own components end-to-end, manage CI/CD and infrastructure (IaC, containers, cloud), improve reliability, and collaborate with PM/design to deliver core features like live interactions and checkout.
Top Skills: AWSCi/CdClaude CodeCodexCSSCursorDockerGCPHTMLInfrastructure As CodeJavaScriptKubernetesNode.jsReact
Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Mid level
Mid level
HR Tech
The role involves back-end development using .NET Core and SQL, contributing to Jibble 2.0 API integrations, and collaborating with product and design teams.
Top Skills: .Net CoreAWSC#ConfluenceEf Core 5FigmaJIRAOpenapiPostgresRabbitMQSlackSQLTypescriptVue
Reposted One Month AgoSaved
Remote
Kolkata, WB
Mid level
Mid level
Information Technology
Develop, test, and deploy Java/Scala microservices for supply chain finance modules. Build Spark batch/streaming jobs and Kafka event pipelines. Integrate payment gateways and ERPs, create Jasper report templates, maintain Kubernetes manifests, ensure ≥80% unit test coverage, and troubleshoot production using Elasticsearch and Prometheus/Grafana.
Top Skills: Akka ActorsAkka StreamsSparkDockerElasticsearchFlywayGitGitlab CiGrafanaHelmHibernateJava 11Java 17JenkinsJIRAJpaJunit 5KafkaKubernetesLiquibaseMockitoMongoDBOraclePlay FrameworkPostgresPrometheusRest-AssuredRestful ApisScalaScalatestSonarqubeSpecs2SpockSpring BatchSpring Boot 3.XSpring Cloud GatewaySQLTerraform
Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Senior level
Senior level
Information Technology
Design, build, and maintain scalable backend services using Node.js and Next.js. Develop high-performance RESTful and GraphQL APIs, implement SSR and Next.js integrations, and architect microservices and event-driven systems. Create technical designs, architecture diagrams, and documentation. Optimize MySQL databases with complex SQL, stored procedures, and performance tuning, including migration and backup strategies.
Top Skills: Event-Driven ArchitectureGraphQLMicroservicesMySQLNext.JsNode.jsRestServer-Side Rendering (Ssr)SQL
Reposted One Month AgoSaved
In-Office or Remote
Kolkata, WB
Mid level
Mid level
Blockchain
As a Backend Engineer at Trust Wallet, you'll develop backend features for multiple platforms, maintain infrastructure, ensure system monitoring, and foster team growth.
Top Skills: AWSAzureCloud EnvironmentsDockerGCPGoKubernetesSQL
Reposted One Month AgoSaved
Remote
Kolkata, WB
Mid level
Mid level
Artificial Intelligence • Fintech • Software • Financial Services
As a Backend Engineer, you will develop and maintain core backend infrastructure, build integrations, and work closely with frontend engineers to enhance user experience.
Top Skills: AWSNode.jsPostgresPythonTypescript
Reposted One Month AgoSaved
Remote
Kolkata, WB
Entry level
Entry level
Information Technology
Develop and maintain backend solutions for Machine Learning infrastructure. Collaborate on large scale software design and project management.
Top Skills: CC++GoJavaKubernetesPythonSQL
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