SDE II

Role overview:

We are hiring one Senior Backend Engineer to take end-to-end ownership of our serverless backend — a hands-on IC role for someone both technically excellent and comfortable being one of the few people the entire backend depends on. You'll own the services across several Node.js and Python repositories, work directly with the founders and product team, and set the technical bar for reliability, security, and performance.

Key responsibilities

• Design, build, and operate AWS Lambda services across our HCM/workforce, project-management, commercial/revenue, permissions, and document domains — each comprising dozens of functions.
• Own the multi-tenant PostgreSQL data layer — schema design, query performance, and the permission/relationship model — end to end.
• Maintain and evolve the request path — API Gateway → custom Lambda authorizer → VPC-bound Lambda → private databases — including the runtime IAM/credential model that scopes every request.
• Safeguard tenant isolation and security across a per-company Cognito authentication model.
• Build and maintain integrations with external construction data environments (Asite, Autodesk Construction Cloud), including large-scale document synchronization.
• Optimize performance and reliability to keep latency-sensitive endpoints well within platform limits under growing load.
• Raise the engineering bar — testing, observability, CI/CD, and modernization of legacy components.
• Debug and resolve production incidents to root cause, and put safeguards in place so they don't recur.
• Document decisions and designs and collaborate with the frontend (Angular) and product teams.

Challenges you'll solve.

We prefer to be candid — these are the problems that make this role genuinely interesting:

Latency under a hard ceiling

API Gateway terminates any request beyond ~29 seconds regardless of the Lambda's own timeout — yet much of our value comes from heavy cross-project reporting. You'll keep p95 latency within budget through set-based SQL, pagination, streaming, and asynchronous processing.

Least-privilege, per-request security

A shared custom authorizer mints short-lived, request-scoped credentials via sts:AssumeRole under a strict 2,048-character inline session-policy limit. You'll design permission models that stay within that budget and reason about IAM precisely.

Graph-shaped data, relational store

The permission and relationship model is inherently graph-like, but lives in PostgreSQL — you'll model it with recursive queries, careful indexing, and set-based traversal rather than reaching for a separate graph engine.

Watertight multi-tenancy

One Cognito pool per company and tenant-scoped access throughout — isolation is a first-order concern.

VPC-bound serverless

Lambdas run inside a VPC to reach private databases; you'll manage cold starts, connection lifecycles, and pool limits.

Resilient external integrations

Syncing large document sets from third-party APIs (including SOAP/XML) demands backpressure, deduplication, retries, and graceful partial-failure handling.

Compute-heavy workloads

Server-side PDF generation, image processing, and multi-currency handling within Lambda's memory and time constraints.

The stack.

Runtime — Node.js, Python, AWS Lambda

AWS services — -1 API Gateway, Lambda, Cognito, STS / IAM, Secrets Manager, S3 CloudWatch, VPC, EC2

Infrastructure & CI/CD- AWS SAM, CodePipeline → CodeBuild Shared Data —PostgreSQL

Qualifications.

• 5+ years building and operating production backend systems.
• Deep expertise in Node.js and JavaScript — the asynchronous model, event loop, and memory behavior — plus solid working proficiency in Python and its production behavior.
• Strong hands-on AWS experience, ideally serverless (Lambda, API Gateway, IAM/STS, VPC, Secrets Manager, CloudWatch) — able to reason about IAM policies, not just apply them.
• Advanced SQL and relational data modeling — set-based query design and a working understanding of why N+1 patterns cause production issues.
• Proven production-debugging ability — root-cause analysis in distributed systems from logs and first principles.
• Strong ownership, sound judgment, and clear written communication — able to make good decisions with incomplete information and explain trade-offs to non-engineers.

Interview Process:

Introductory call-Mutual fit and role overview.

Technical deep-dive- A walkthrough of a challenging production problem you have owned.

Practical exercise -A realistic backend task, or a walkthrough of your own representative code.

System design- Collaborative design on a real scenario.

Final conversation- Values, ownership, compensation, and offer.

Key Responsibilities

·      Design, build, and maintain efficient, reusable, and reliable Python automation scripts.

·      Consume, integrate, and manage external services using APIs (CRUD operations, JSON parsing).

·      Read, comprehend, and debug existing code to identify bottlenecks and fix bugs.

·      Interact with databases using SQL to extract and manipulate required data.

·      Maintain source code quality through Git version control and participate in code review workflows.

·      Clearly communicate logic, architectural choices, and technical roadblocks to the team.

Skill Requirements & Competencies

Non-Negotiable Skills

·      Aptitude & Logical Problem Solving: Exceptional ability to break down complex problems. The ability to explain the logic behind your code is strictly required.

·      Core Python Mastery: Deep understanding of decorators (e.g., writing execution time loggers), list/dictionary comprehensions, and advanced string operations. (would be good to know packages such as heapq or equivalent which aids problem solving using pre implemented data structures).

·      Concurrency & Parallelism: Practical experience with asyncio, multithreading, and multiprocessing, including knowing exactly when and why to use each.

·      APIs & Data Handling: Proven experience calling endpoints, parsing JSON data, and working with any standard API framework (e.g., FastAPI, Flask, Django REST).

·      SQL Database Skills: Intermediate ability to write SQL queries to fetch, filter, and manipulate data. NoSQL exposure is a good to have.

·      Code Comprehension & Debugging: Ability to jump into an existing codebase, understand its flow, and efficiently troubleshoot bugs.

·      Strong Communication: Must be able to articulate technical concepts, code, approach etc. clearly to both technical and non-technical stakeholders.

Intermediate Skills

·      Version Control (Git): Competent in creating/modifying repositories, branching, committing, pushing, and managing Pull Requests.

·      Command Line / Scripting: Intermediate proficiency in Bash/Shell scripting for environment navigation and basic OS-level automation.

✨ Develop & customize IBM Sterling OMS

✨ Build/consume REST APIs using Java & Spring Boot

✨ Work on OMS workflows, integration & order lifecycle

• To perform requirement analysis and oversee the implementation of architectures of project scope
• To provide customized reusable solutions of project, program or operational scope
• To develop high-quality and detailed designs
• To conduct unit testing using automated unit test frameworks and identify and address possible risk by conducting mitigation action planning
• Conducting configuration of your own work or from the team and assess the technical impact of multiple technologies/strategies
• Reviewing the work of other developers with feedback for improvement (if applicable)
• Using coding standards and best practices to ensure quality deliverables
• Contribute as a team member to an operational, integration or application architecture requirements, design, implementation, or on-going operations deliverables

Position – Software Engineer

Essential Job Functions:

• Develop code for system changes or new modules within company and architecture according to specifications and standards
• Participates and contribute in formal and informal code reviews
• Prepares and executes accurate unit test plans, test data, and test modules and scripts
• Documents code changes and unit test results per Best Practices
• Performs production support and troubleshooting and maintenance (defect resolution)

Required Skills:

• 3-6 years of hands-on experience
• Expert level understanding of all phases of SDLC, preferably with Agile methodology.
• Strong coding experience with Java, J2EE, SQL. Strong experience in java frameworks, especially spring framework.
• Solid experience developing with SQL queries, stored procedures, views and triggers for Oracle databases.
• Understanding of multi-tier architecture, Web based development, and Services Oriented Architecture. Experience coding REST and SOAP services.
• Excellent communication (verbal and written) and interpersonal skills. Able to step into complex situations and take responsibility.
• Solid knowledge working with version control systems like bitbucket and build tools like maven.
• Strong problem solving and conflict resolution skills.

Preferred Skills:

• Able to guide junior developers.
• Ability to learn and master internal frameworks quickly.
• Deep knowledge in writing complex unit tests.
• XML and knowledge of generating Java data binding code from XSDs
• Knowledge of Tomcat, WebSphere, WebLogic and IBM MQ
• Experience with Agile methodology.

About CapitalCloud, A Bottomline Company:

Bottomline Technologies provides collaborative payment, invoice and document automation solutions to corporations, financial institutions and banks around the world. The company's solutions are used to streamline, automate, and manage processes involving payments, invoicing, global cash management, supply chain finance and transactional documents. Organizations trust these solutions to meet their needs for cost reduction, competitive differentiation, and optimization of working capital.

Serving industries such as financial services, insurance, health care, technology, communications, education, media, manufacturing, and government, Bottomline provides products and services to approximately 80 of the Fortune 100 companies and 70 of the FTSE (Financial Times) 100 companies.

Bottomline is a participating employer in the Employment Verification (E-Verify) program EOE/AA/M/F/V/D/E-Verify Employer

Bottomline Technologies is an Equal Employment Opportunity and Affirmative Action Employer.

• Augmenting, improving, redesigning, and/or re-implementing Dolat's low-latency/high-throughput production trading environment, which collects data from and disseminates orders to exchanges around the world
• Optimizing this platform by using network and systems programming, as well as other advanced techniques
• Developing systems that provide easy access to historical market data and trading simulations
• Building risk-management and performance-tracking tools
• Shaping the future of Dolat through regular interviewing and infrequent campus recruiting trips
• Implementing domain-optimized data structures
• Learn and internalize the theories behind current trading system
• Participate in the design, architecture and implementation of automated trading systems
• Take ownership of system from design through implementation

Java Backend Engineer - Fintech Rocketship Pilot

Distributed systems, scalability, reliability, robustness, security, quality, building responsive real time systems - do these terms get your adrenaline high? Come be a part of a high growth, fast paced engineering team building for India’s new generation.

We have an open culture, you take responsibility and ownership of what you do. No bureaucracy. No bullsh*t.

If you are up for big engineering challenges, personal and professional growth, then let’s join forces!

You’ll fit right in if you have - 2-3 years of experience building, running and maintaining production services Strong with Java and JVM based services along with PostgreSQL Comfortable working with multiple cloud providers: mainly GCP and AWS Comfortable with CI and CD tools and best practices Done TDD and values TDD

Good to have –

The ideal candidate will be familiar with the full software design life cycle. They should have experience in designing, coding, testing and consistently managing applications They should be comfortable coding in a number of languages and have an ability to test code in order to maintain high-quality code.

Responsibilities

• Design, code, test and manage various applications
• Collaborate with engineering team and product team to establish best products
• Follow outlined standards of quality related to code and systems
• Develop automated tests and conduct performance tuning

Qualifications

• Bachelor of Science in Information Technology
• 1+ years of experience working with .NET, Asp.net or relevant experiences
• Experience developing web-based applications in Asp.net, Dot net Core, jQuery, HTML5, Rest base API integration
• Understanding DB,PL/SQL, Webform
• Experience working in agile development environment

Responsibilities:

- Taking initiative in the Design and Development of Android applications.

- Ship reliable software practicing robust software design and in-depth code reviews.

- Design major software components, systems, and features and implement full-stack app foundation features and core app features.

- Take ownership, design, develop and deploy in a collaborative environment with other team members

- Knowledge of architect solutions using innovative technology ideas and industry-leading methodologies.

Requirements:

- Good hands-on experience in developing and deploying Android apps Android native/cross-platform.

- Comfortable with JAVA and Kotlin both.

- Experience implementing integrated solutions with APIs built using RESTful web services.

- Strong analytical and debugging skills.

- Good understanding of Data Structure and Algorithms.

- Adapt to a dynamic work environment. Stay updated with the latest in technology and always think customer first.

- Study and understand the product specifications thoroughly to design appropriate software solutions. Suggest improvements and optimize existing implementations.

- Ability to identify and deliver POCs and Demos in a record timeframe.

- Encourage and coordinate with the team around new technologies, processes, and approaches.

- Proficiency in various Design Principles and app development methodologies.

- Strong communication skills with a people-first approach without compromising on engineering tasks